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HomeMy WebLinkAbout04-09-1991 P s 3 V , I 3 ` AGENDA CITY OF DENTON CITY COUNCIL 1 April 9, 1991 Special Called Meeting of the City of Denton City Council on Tuesday, April 9, 1991, at 5:15 p.m. In the Civil Defense Room of City 215 H. McK itmss will be onsidered;Denton, Texas at which the following 5:15 p.m. 1. Executive Session: A. Legal Matters Under Sec. 2(e), Art. 6252-17 V.A.T.S. B. Real Estate Under Sec. 2(f), Art. 6252-17 V.A.T.S. C. Personnel/Board Appointments Under Sec, 2(9), Art 6252-17 V.A.T.S. 1. Consider appointments to the Building Code board, Community Development Block Grant Committee, the :r Electrical Code Board, the Historic Landmark Commission, the Human Services Committee, the Downtown Advisory Board and the Sign Board of Appeals. 5:45 p.m. 1. Receive a report and hold a discussion toga rdi,nq ;a proposed ordinance related to the parking of certain vehicles on the street and to the parking of vehicles over 7,000 pounds. 2. Receive a report and hold a discussion on a proposed resolution regarding a plan for Groenbelts. 1 3. Receive a report and hold a discussion regarding a proposed sprinkler ordinance. 4, Receive a report and hold a discussion regarding the City of Denton's Municipal Court of Record. 5. Receive and discuss the Utility Department's 1991 ' t!'otecast. ' Receive a report and hold a discussion regarding ' 6. Council Member Gorton and Mayor Pro Tem Boyd's meeting ' with Judge Moseley concernl.ng redistricting. s. 1 i City of Denton City Council Agenda } April 9, 1991 , Page 2 7. Receive a report and hold a discussion regarding an analysis of the Charter review process. 8. Receive a report and hold a discussion regarding a proposal from the Union Pacific Railroad to lease railroad right-of-way from Lake Dallas to Denton. 9, Miscellaneous matters from the City Manager. r ,Ji " d C E R T I! 1 C A T 9 Y' 1 certify that the above notice of meeting was posted on_the bulletin board at the City Hall of the City of Denton, Tekas, on the day of , 1991 at a olock p Nr; r (pis,) CITY SECRETARY 1 ~Y 3369C s 4;` ti f r. la .r y j. i i /4,W j. 9 aA. 9'; ~Y s'~~1 f I' i DATE,01/OC/91/ CITY COUNCIL REPORT FORMAT j II ! TO, Mayor and Members of the City Council FROM, Lloyd V, Harrell, City Manager S1133ECTt Ordinance related to the parking or storage of certain vehicles in residential zoning districts and parking on the street 1 1 RECOM4ENDATION1 The Planning and Zoning commission recommended approval of the amendment to Article 15, Appendix B, zoning, of the code of ordinances and Section 24-126 of the Code of Ordinances at their meeting on March 6, 1991, BACKGROUND, 0' 1 -rThe zoning ordinance contains a provision in the parking regulations ~tY that states, "In the SF-160 SP-13, SF-100 SP-7, 27, MY-R, M0-10 MP-2, 0, and NS districts, no parktng space, garage or carport or other automobile storage space or structure shall be used for the lckup p storage of any truck, truck trailer or van except panel and trucks not exceeding one ton capacity." In order to clarify the Intent of the provision, the City Attorney's Office suggested that j an amendment be made to the ordinance. > in additions Section 21-126 of the Code of Ordinances limits perking on the street to not exceed 20 continuous hours, Since this I ordinance also relates to the parking of vehicles, staff determined ! that the intent of this ordinance should be clarified as well, The Planning and Zoning Commission recommendation restricts vehicles over 3,S tone from parking on property zoned SY-16, SP-13, SY-10, SF-7, 2F, MF-R, MF-1, MF-2, 0, and NS and/or on local/residential streets in the Sr-]6, SF-131 SF-10, SF-7, 2F, MF-R, MF-1, MF•!, O, a , j and NS districts, 4 The amendment increases the limitation from one (11 ton to 7,000 pounds, 3.5 tons, and provides for exceptions if the vehicles A) is temporarily parked for the purposes of loading and unloading or } 1 for construction or repair on the property, b)is not visible from a public street and any abutting residential i property, or 016 an integral part of a nonconforming use of the property$ The three and one-half ton limit would allow pick ups and wreckers built on pick ups and some utility trucks, i.e, plumbers trucks, Mrs, Baird's trucks, etc, .'t E y I i WWI i CC Format-Trucks Page 2 ! I BACKGROUND (continued), The proposed amendments to Section 24-126 of Code of Ordinances 1)increases the time limitation for parking in the street from i twenty (20) to forty-eight (48) consecutive hours, and 2)prohiblts perking, placing or leaving boats, campers, recreational `i vehicles, trailer or other vehicles which is not self-propelled on the street unless it is connected to a self-propelled vehicle.. 1 SUKMARYi e!, In March 1990r the Enforcement and Beautification Division informed , a resident on Kings Row and on Sell Ave. that the storage of diesel truck tractors or cabs on residential property was a violation of r ~y. the zoning ordinance. One of the cabs weighs approximately 16,500 ~j. pounds or 8.25 tons. In the discussions with the truck owner an Kings Row, the owner stated that the truck cab was not being stored but only parked on his property. The owner also stated that as a l professional truck driver he wanted to be able to park his truck in his driveway when he was at home. The Division has received nine complaints from citizens questioning why trucker truck trailers, and E dump trucks are allowed in residential areas in the last six` months. These individuals expressed that the trucks are a nuisance f in their neighborhood. At the July 17, 1990 City Council worksession the Council referred II the item to the planning and Zoning Commission. The commission k considered this item four times. Numerous issues were considered including damage to residential streets, commercial use of ' residential property, quality of life in residential areas, safety - for neighbors and pedestrians, neighborhood preservation and alternative locations to park trucks. Parking of trucks on general j retail, commercial, light industrial and heavy industrial zoned f property is not limited under the current ordinance. four truck stops on or near 1-35 are located within the city limits and allow storage on their property either at no cost or for the cost of a full tank. Several storage facilities advertise storage of 'I recreation vehicles, boats and other vehicles. } At the August 22, 1990 meeting the Commission held a public hearing and received comment from three citizens. 'she commission discussed # the use of the two required off-street parking spaces in residential 3 zoning districts, the size of tractors or truck cabs in relation to s the house and other vehicles, trailers or other vehicles not ! self-propelled being parked on streets, the length of time a car is } pecked on the street and the requirements of certain types of surfaces on which to park a vehicle. t awo, L- r• . 01, I CC Format-Trucks Page 3 SUMMARY (continued) I On November 140 1990, the Commission discussed the weight limitation ssion requested i 5 tons, The Oommi and suggested an increase to 3. that the proposed ordinance include a provision to restrict non-motorized vehicles from being p TaskrForceffor comment, A suggestion was ask the impervious alsoomade to require At the meeting on January 23r 1991 the Commission discussed the The Zoning Task Force did not issue of recreational vehicles, k formally consider the itemr but two members u all rested eg limiting p ulations of recreational vehicles, An exemption i parking o of recreation vehicee of was lmitntions submittedg but In the Commission requested addition* the Commission t review of soma type agreed to restrict parking of certain vehicles on the street. I Public comment was received from three citizens. The commission held a public hearing and recommended th ordinance - The commission discussed the at its March 60 1991 meeting. difference between a recreational vehicle and a tractor cab. Provisions to limit the parking of recreational vehicles were ! presented which includedi 1lrequiring the recreational vehicles to be parked in the side of i rear yard with a minimum five (5) feel setback from the property line or a 211E the recreational vehicle could o be parked in Ythe ard sod long rear yard, that the vehicle may be parked in the front as a ten (10) feet setback from the curb was maintained. 1 parked in The provision did not eliminate the vehicles from being p the front yard of a residential, NS or 0 district but provided for deletedrkthe inproposalthe setbacks and the poption ossible, Of requiring to be rear yard if their final recommendation, because the consensus was that large recreational vehicles e ofrevehiclesashould be theelconsideration tfoe weight and not ot type regulation, Under the proposed ordinance if the recreational vehicle weighs more than 3.5 tonal it cannot be parked in the SF-16, 7 SF-130 SF-S08 SF-71 2F, MB-Ar MF-1r MF-2r Or and NS districts, RESEARCNf Staff surveyed twenty-one cities from across the state to determine how this situation is handled, The summary is attached, Nineteen S of the cities either prohib.t or limit trucks in residential toning districts, Lufkin is working on an ordinance and cuerently requests that the owner remove the truck from the residential area. Copri requires that the truck be parked on a concrete pad, Fifteen ~1 fou ilmitethettrucks bybtonnit tracks of a and timecintairesidential atea.(41 cities r i rl . i CC Format-Trucks ` Page 4 I f ATTACH14ENTSi 11 Proposed Code of Ordinances, Appendix Br :oningr Article I , 15(c)(2) and Code of Ordinances, Section 12-126 21 Code of Ordinances, Appendix Be coning, Article 15(c)(2) 31 Code of Ordinances, Section 12-126 L 4) Summary of truck weights i ' f 5) Research Information { 6) Minutes of the City council meeting of July 17, 1990 7) Minutes of the Planning and Zoning Commission meeting of August 22, 1990 fi \ 1 E 81 Minutes of the Planning and Zoning Commission meeting of November 14, 1990 9) Minutes of the Planning and Zoning Commission meeting of k } January 23, 1991 ~ 10) Minutes of the Planning and Zoning Commission meeting of March 6, 1991. PROGRAMS, DEPARTMENTS OR GROUPS AFFECUDt 91~' f + ~A~ Code Enforcement Division, owners and neighbors of owners of vehicles over one ton, trailers, RV, or similar vehiclea, and, I Cititena of Denton, FISCAL IMPACTS No fiscal impact is anticipated by adopting the ordinance. ' Resp fully sub i edr:: 7e r t Prepared byt L3 Yd V, Harrell r,, City Manager } ~i"11t Wc•v4Q~ Cecile Carson Administrative Analyst r• APP ed~ ~ 1 . J esus aver Assistant th A lf` ~ City pager ~ + 1 i fr i 4 0015W ` i Rx4 t y. E f f puko 1 i i ORDIlANCE NO. h AN ORDINANCE OF THE CITY OF DENTON, TEXAS, AMENDING ARTICLE 15 OF APPENDIX B-ZONING OF THE CODE OF ORDINANCES TO PROHIBIT THE PARKING OF MOTOR VEHICLES IN EXCESS OF 7,000 POUNDS ON PROPERTY IN SPECIFI- ED ZONING DISTRICTS) AMENDING CHAPTER 24 OF THE CODE OF ORDINANCES I , TO PROHIBIT THE PARKING OF MOTOR VEHICLES IN EXCESS OF 7,000 POUNDS k ON CERTAIN STREETS, THE STORING OF MOTOR VEHICLES ON A PUBLIC j• STREET FOR MORE THAN FORTY-EIGHT CONSECUTIVE HOURS, AND THE PARKING OF NONMOTORIZED VEHICLES ON THE PUBLIC STREETS) PROVIDING FORA, 1•. PENALTY IN THE MAXIMUM AMOUNT OF $500.00 FOR VIOLATIONS THEREOFI PROVIDING A SEVERABILITY CLAUSE: AND DECLARING AN EFFECTIVE DATE. THE COUNCIL OF THE CITY OF DENTON HEREBY ORDAINS: SECTION i. That Article 15 (C) (2) of Appendix za - zoning of ! I 4 j the Code of Ordinances is amended to read as follows: 1 k y C. Special Off-Street Parking Regulations. i ' (2) Its shall be unlawful for any person to park or ' leave a vehicle on any property located in a SF-16, SF-13 SF-10 SF-7, 2F, MF-R, MF-11 MF-2, O, Or NS j zoning district if the vehicle has a manufacturer's f gross vehicle weight rating of more than 7,000 pounds, it is a defense to prosecution under this paragraph that the vehicle vast t ^ (a) temporarily parked for the purpose of load ing or unloading passengers or property or for temporary constriction or repair work occurring on the property) (b) not readily visible from a public street and } any abutting residential property by reason of a wall, tress, shrubs or other permanent screening devices or ~ s (c) an integral part of a nonconforming use of the property. SXCTiON iI. That section 24-126 of the Code of Ordinances is rJ: amended to read as follows: it I l Sec. 24-126. Storage of vehicles on Public Strestse (a) No person shall park or leave a vehicle on any public street located in a SF-16, SF-13, SF-100 SF-7, 2F, MF- R, MF-19 MF-2, 0, or NS zoning district it the vehicle has a manufacturer's gross vehicle weight rating of more than 7,000 pounds. (b) No person shall park or leave a motor vehicle on a public street at one location for more than forty-eight (48) consecutive hours. ' ' (a) No person, including the owner thereof, shall park, place or leave a boat, camper, recreational vehicle, canopy, trailer, or other vehicle or device which is not self-propelled upon a public street, unless the 1 ~0 vehicle or device is connected to a self-propelled vehicle. (d) The name of the person in which the vehicle in viola- tion of this section is registered shall be considered prima facie proof that the person was in control of the'. vehicle when the violation occurred. (e) it is a defense to prosecution under this section that the motor vehicle, truck, trailer, or device was temporarily parked for the purpose of loading or unloading passengers or property or for the purpose of doing construction, repair, or other authorized work within a public right-of-way. SECTION- 111. That any person violating any provision of this j ordinance shall, upon conviction, be fined a sum not exceeding $500.00. Each day that a provision of this ordinance is violated shall constitute a separate and distinct offense. SECTION IV. It any section, subsection, paragraph, sentence, clause, phrase or word in this agreement, or application thereof to any person or circumstance is held invalid by any court of compe- tent jurisdiction, such holding shall not affect the validity of the remaining portions of this ordinance, and the City Council of the City of Denton, Texas hereby declares it would have enacted such remaining portions despite any such invalidity. i SECTION V. That this ordinance shall become effective fourteen v days (14) days from the date of its passage, and the City Secretary k; is hereby directed to cause the caption of this ordinance to be published twice in the Denton Record-Chroniole, the official tg newspaper of the City of Denton, Texas, within ten (10) days of the date of its passage. PAGE 2 " j , PASSED AND APPROVED this the day of , 1991. 0' k y ' BOB CASTLESERRYj KAYOR ATTEST t JENNIFER WALTERSt CITY SECRETARY Bye APPROVED AS TO LEGAL FORM dti DEBRA A. DRAYOVITCHl CITY ATTORNEY i 4 9 . .r..✓'1 f ` Bye f ~1 ,f r 1 A 3 If y If' 3 ~ ~ 1 7 1 a ) .1 ~ 4 4 1 a f PACE 3 + s 4:, P (-'i t al . , r u N1 F 4 ATTACKMZNT 2 AA 16 UNION CODs Art li Theaters, Meeting mama and plaee+ of p"lie "I 1 s#mbly, Ora sWa for every three (S) sub in the ' facility. (23) Day Rursery or kindergarten, One space for each employee, and one space for each to (10) childroa. ` A circular de{ve that will adequately serve the same traffic load, approved by the traffic safety direc• tor, may be substituted for the required public parking. (Ord. No. 77.4 Pt. 4 1.13.77) C. Special off-street parking regulations. (1) In computing the off-street parking requirements for any development which includes more than one distinct class of use (Le. retail centers with restau. E rants, multifamily developments with public asw venience (sciuties, etc.) the total parking requiree most shall be the sum of the speclfia parking m• quirements for each class of use. This pravialan shall apply only who the wes an separate and distinct and shall not be construed to exclude stem j room or offlces from nt&H requirements. Is 40 cases where two (2) or more uses co4xiat to per- form a singular function within a structural unit, the parking requirement shall be based on the groan area wing the highest minimum parking requirs• meat applicable. r (3) Io tM S!'•la ~'•ls..1!'•10, S!'•7, ~'•1t, I[!'•ir JIM % 0, cad NS districts, no parking space, garage or aargwt or other autosrobde storage spsee er strnctun shall be wed for the stoeege of nay true>k, !rush trailer or van at* panel and pkttnp h"U L cot ax"ading one too capacltf. (3) !'loo: am of steuchm demoted to eff street posh. ing of vehlcla shall be excluded is eomputiag the off-street pa:king rpnlresaeats oil' asg+~ttes~ (4) Off-street parkin` to some a building, or use of land may be provided on a tract or parcel of land other than • on which the building or use being served Is located under the following conditions, 3 R~~n~ Nn 1A ,!„h ti 1 r, affi~ ATTACHMENT 3 f 2412 DENTON CODE 1 24-126 dupllcate, which conforms to the city specifications on file in the offlce of the city secretary, which drawings or plane shall show the proposed entrances. and exits. (c) Upon receipt of any such drawings or plans., the chief of police shall promptly lWpect the proposed parking area to determine whether tht proposed entrances and exits are consistent with the existing or proposed traffic-control system in effect for the area and he shall andom upon the said drawings or plans his approval or disapproval. One copy of the said drawings or plans shall be returned to the applicant and one copy shall be retained by the chief of police and filed as an official record of the application. If any drawings or plans submitted under the provisions of this article shall be disapproved by the chief of police, he shall state his reasons therefor in a letter to the applicants together with suggestions for any changes necessary to secure approval. (Code 1969, Art. 16.28; Ord. No. "-16, 11. 2-") f T, Sea. 24.126. Parking or standing in alleya. ~ No person shall park a vehicle within an alley in such a manner or under such conditions as to haw available less than ten (10) feet of the width of the roadway for the free movement of vehicular traffic, and no pawn shah! stand or park a vehicle within an alley in such position rs. to block the driveway entrance to say abutting Property. } rS*& 24426. Oversight psrkiag. O"raight parking for storage on any payed street is hereby prohibited. Overnight parking for stomp" if baeby defined as the habhual parking or storing of a w% trnalss, tractors or other rebukes on paved streets daring the hours # from sundown to mmups eacoept tsniporarily disabled TOWN R wM& are protected by !fares or other approved 49W dos vioss. It is not the intention of this ssetion to Ptah" or nights istWm with pamager cars temnporarify parked at wbere such parking does not exceed twenty (20) m 4hoars. i ' ar_,+• ,rrr•..~.T.....a.a 1.ya. r.t -.ar.. 9 ATTACHMENT 4 ~ ~ " VEHICLC WEIGHTS Tt~ WEIGHT.' ` TRUCK AND CAB 14.5 TONS EMPTY ny CAB 6 TO 10 TONS 'L DUMP TRUCK (6 YD) 516 TONS s r, r+, s DUMP TRUCK (12 YD) 9.3 TONS WRECKER 4 TO 6 TONS j UTILITY ]'RUCK 3.6 TONS f BUS B TONG ` RV 4.5 TO 6 TONS DOUBLE CAB (4 DOORS) 2.5 TONS " 1 1 1 J i ~ 5 ~ :~i( r lL+. J Lr ti 1 I rF, 1. 1 r E b, 4 r r ' . n 4-1 ~ ` y rti II , I ar . r dc" 1 Y , , ++d~k°i ~r w + r x, F ly l apt t, lr 1, .1 4,4 r l(.L. f N ATTACHMENT 5 ! RESEARCH INFORMATION SOLMAR1' CIT ORDINANCE RECREATIONAL 1 ABILENE Prohibits 1.5 ton or more 10' bldg. from bldg commercial vehicle to be on adjacent lots ! parked or stored one 10' from streets 15' I." residential lot from arterial, all weather surface, can be occupied by non-resident M of Abilene for 14 days 1 ti AM4PILL0 Expeditious loading and 72 hr restriction in unloading only streets must be on private .tk'•< Parking in street maximum 72 property on not a sight y hours per year problem Truck parking designated in coning ordinance Trucks over 2 tons prohibited Motorhome or ARLINGTON f cannot be parked in front, boat prohibited side or rear yard in any yard except lest' r than 30' on all weather a surface or screened from view ' CARROLLTON Cannot exceed 1 ton On an improved Must be parked on improved surface or in rear ; surface of concrete or asphalt yard Truck route provisions i, used to enforce j COPPELL Trucks etc must be parked Must be on eoucrete y: on concrete pad approved pad approved by by city. Max. 2 hrs. for city t.4 trucks over 1 ton parked I~ on street f f EULES3 Trucks over 1.5 tone are Not available limited to 4 hours in residential districts Limited to 2 or 3 areas FARMERS BRANCH Trucks over 1 ton prohibited All weather surface >is Only in front yard on all weather surface or W~ E screened from public "Jh s view. RV cannot be used as a hose y' , F _ .s a ,err . l .r Page 2 ORDINANCE kECREATIONAL FLOYtER MOUND Over 1.5 tons prohibited Recreational Fy vehicles max N 40% of yard can No more than be used for parking 8.5' wide, 'r' 11.5' height, 6 36' length on street or r «H on private property GALVESTON 5 tons or more and Not available 2 axles are prohibited + btwn7pm67am GARLAND One ton or more prohibited Improved surfaco of Commercial coning or less 6" gravel w! border or restrictive district concrete or asphalt in side and front Yd.~. Rear yard behind building § w line operable vehicle or .u, trailer Holy GRAND PRAIRIE PUD 1 ton truck delivery Not available G^, only PUD 20 to 25% , k of residential IRVING Over 1 ton prohibited Concrete or gravel Commercial vehicles surface required LEWISVILLE Over 1 ton prohibited Concrete or gravel' surface required a{. ' LUIKIN Working on ordinance Asked to move vehicle upon Asked to move vehicle upon complaint f{k. complaint MEIVITE over 2 ton prohibited Not available Extension to move given when l ord. was approved (90 days) PLANO 48 hours in street or RV, boat, driveway trailer or item movement cannot be only pulled or stored btwn property lines on trailer prohibited in ROW ~r k; PORT ARTHUR 18' or longer prohibited from 18' or longer from overnight parking prohibited f; overnight parking i 5-2 , page 3 ORpiI3AN9F E T QYU 4IU Park in aide or rear yard unlawful - ' RICHARDSON 1.5 tone or more w/ min, 6, screening and in residential toning on an approved surface district (1/14/91) Recreational SAN ANGELO 3.5 ton or more unlawful inside or in comm. vebicles on street, rear residential late, or street yard notdbordering } bordering residential area s street ry• ,J a.A t 1 Delivery only to residential All weather surface MACO { areas cannot park on street Carkingbepacerforired parking Cab alone can he parked but no specific ordinance (City residential area Attorney's comment) Ord. " s> ' does not allow in required parking space Cannot block sidewalk WICHITA FALLS 1 ton or more prohibited No other liaitations ,a r to park in residential district s NOTE: All allies indicated that passenger vehicles like pick-up are excluded trail the regulations. Some cities define these J vehicles by weigh also. r r .f ~r S r; i .R 1 G Inf. ,i• N' n _ t •,nZ 5-3 : ail w ~ II {.~v f J y' a 1. o Wet: ~7 Owl 62 ATTACHMENT 6 CITY OF DENTON CITY COUNCIL MINUTES JULY 17, 1990 The Council convened into the Work session at 5:iS p.m. in the Civil Defense Room. PRESENT: Mayor Castleberry; Council Members Ayer, Oocton, and Hopkins. ABSENT; Mayor Pro Tom Boyd; Council Membece Alexander and Trent. i 1• The Council convened into Executive Session to discuss legal matters (consideced action in In Re: Flow), coal estate (considered land acquisition for service Center Expansion), and personnel/board appointments. f Council Member Hopkins left the discussion during In Re: Flow. 2. The Council held a, discussion conearnLng the ' provisions of the code of ordinances related to packing of vehicles over one ton in residential zoned districts. Lloyd Hatcell, City Manager, stated that staff had received a .f ; number of cltlzen complaints over the last few weeks. start felt there was an area of claritieation needed. , CecLle Carson, Administrative Analyst, stead that approximately tour months ago, the Code Inforcement Division ` through a routine Inspection of an atea, cam! across a 4 tcaceot-tcailoc cab in a residential neighborhood. The provisions of the zoning code stated that trucks, trailoca cc vans except tot paneling pLek-up trucks not exceeding one ton capacitys were not allowed in a residential zoning district, multi-family district, office or neighborhood service district. The provision came into question because the owners of the tractor-tcailoc rig indicated that that was the only place that they had to pack the vehicle. It was not "storager because the ordinance used, the tots "storage" - not "packing" which was not allowed,. A legal opinion from the Attorney's Office stated that it the pactieular situation were taken to court, the judge and/or the jury would have to detersine what was "storage". since the ordinance provided no guidelines, it could be determined differently to each and every case submitted. It was noted that other types of vehicles such as wreckerst flat bed trucks, dump trucks buses, and dlfterent tYOes of trailoce could also be questioned In a residential f neighborhood, Another area in question was the ordinance la the code that stated that vehicles wets not allowed to be parked toe mote than 20 continuous hours on public streets which included trucks, trailore and other vehicles. The ordinance was entotded by the police Department is cooperation with the Code entoccement Division, staff felt theta wets tour e WWI City of Denton City Council Minutes 1 July 17, 1990 Page 2 alternatives (1) leave the ordinance as It was and handle complaints on a case by case basis. (2) modify the ordinance by adding provisions to prohibit, (3) modify the ordinance by limiting the time allowed in residential areas, and modify the ocdinance to allow trucks to be packed in residential areas. Council Member Hopkins asked if the ordinances from other cities were cefeccinq to the tonage. Was staff suggesting that pick-up trucks not be allowed. Cacson replied that most of the ordinances made allowances foe pick-ups and passenger pick-up vehicles. Most of the definitions were pet the Motor Vehicle Code. ° Council Member Gorton stated that he saw the issue from a number of viewpoints. one was the ability of the City to maintain the streets peopecly. Another was from the standpoint , of the zoning issue - a com occial vehicle in a residential aces advertising a certain business. The aesthetic standpoint Fy of the individual standpoint was the was another issue as vehicle owner wanting the vehicle nearby so as to not have to worry about vandalism. Carson stated that streets wets designed for limited truck traffic and the Engineering Department did not feel that limited use would necessarily cause a, problem. Council Member Hopkins felt theca was quite a difffrence between an "id wheeler" and driving home a work vehicle is regards to advertising, There needed to be a diffecentiation between an individual who came home at night in his penal truck, pick-up truck or plumber truck or, whatever and an individual who case home in an "1a wheeler". A citizen' in the audience sated that one of the tractor-tcailoc cabs shown on the slides belonged to her. They had never brought a trailoc into the area. It het husband got home early in the socninq, he would sleep at the trunk stop and then come hose to as to not disturb the neighbors. Council i(ember Hopkins continued that the recreational vehicle area was a difficult area to deal with, It needed a lot of research and public hearings. The Council needed to be auto that what vas being done was to protect the streets and wag to do something about vehicles packed on the streets and not being moved. but not for something that came in at night and left every morning. i rX 3 1 6 4 City of Denton City Council Minutes July 17, 1990 Page 3 Council Member Gorton suggested that the Planning and Zoning Commission look at the Issue and address some of the issues. Council Member Ayer stated that theca were matters of aesthetics, street maintenance, and safety. The survey provided Implied that Denton was behind in Its regulations. He w, would like the survey expanded to deal with RV's, business trucks-beinq•dciven hose at night, etc, Consensus of the Council was to proceed with presentation of ti the item to the Planninq and Zoning Commission to Include a public hearing possible i the Planning and zoning commission looking at all options. 3, The Council held a discussion concerning the City of Denton expressinq its intent to Contract to Purchase from the upper Trinity Regional Water District a portion of the raw ; water obtained from the Sulphur River Basin by the District by contract with the city of commerce. (Public Utility Board recommended approval.) Bob Nelson, Executive Director tot utilities, reviewed the , City's current water supplies, the possible alternatives and the details of the Coopec Reservoir. bet Ayer asked tot the time frame for the up-trout , Council Item i money. Nelson replied a year with a back-out provision, Within that year a feasibility study needed to be done to determine It the enginestinq and economics would sake It along with legal work, Council Member hyst asked how such money the City would have to t put up for the ttrat year. Y" Nelson replied Denton's portion would be $13,326 plus $50401 fees first tote engineering tool, Cates, 50 000 toe at tho Council Membet Ayer felt that theca was some risk but felt that j It was a load chance to take. Council Member Hopkins stated that it was hard tot hot to its the risk whom it was such a small amount of water, She did not think the risk was worth it but did so* the ispoctance of fat more water, She telt iottiifql3 tae were tat un4sdoor tstated, mootlaqu any formalouactionaont theositemetontall w tot furt~h r discussion. I {ALL' _ 3 i ATTACHMENT 1 sat Minutes Pau" at 77. 1ef0 700 teest reply s s(am ite, f Were reeceivedd tlnsrty .rears vithen re" at and o vote received in favor. eppseition to the Mr. Yeat stated that the applicant visaed a Postponement of the puhlto aprl", Th .r,.liesnt f tu totaehee ads peegreu tevasds a complete apPlleatlOn needs extr else to finish it. a t Mr. Robbins added that staff is Prepasal to sake a \ roeomwndation of denial because no pretreat had been cads on the application. state to not prepared to ceabent an a tae plan that vas lust nor delivered to the aosmloaion. it does arrest that tae aprllrant is a•ki' pr"ress. staff s vould ke to "0 the site beds dwelt Is in the future. A Complete subalseion has still not boon bade. xe bete damate U Ml 4eM to tae site by the apP1leant, tAere a; has been sow 111 al „ 't ta't is not seiated to tae rv! application. lleetolt said that he votlid 11ka is deer the staff report tt sTA" RM*?t Mr. Yost stated that the site is surreueded an the ns"A Ir Planned Owelepwnt No. U (~401'selltu"d 1 injection el•rd) GM "Is tally hNa an a r ' seniat. To tae "ttth are seattered alntte to"It, bob" gild undrnl"ed land in CMtea's etteraurritefial lttrlddidtida. To the vest "or"s Msybill fad are eat"s" a Is tMlly hews on Nrleulture Seel". s~"Lite V" t w. 111 ~ IOSbten m ttaatewtet ""tuft PSaM) 11w is ofd "ft M ~ underiylnt litht laduetrlal •ata~ a Me, I"$ PrasAtw slid" it the sits bed the mrrtwNyI t y uad to laws a affil I&" WM$ 166 Misl old u „ t bas prepsrt bill to bmimt Sawlad ea wil Sepwt, The wnam~sd a pitsy Malt t Its Mlaat•rMdin Ad Tbla is a lw latawlty aa, we sesek stated twat with the seemna that pr rdshLsa 91114 made so ohs appllatiaat she mwem td lss .l balll~. Pwsndsd by hf. al"sadk. fe old flat sws v m uM mass to be dMN U tad elf". W. tntelbacht Wiat" that M would mwd to day U* pmttttem. tt lad be" ardbw drat blast a yd". fovewr, M riu t• •lamt via at used yatp"mmat. Ott" arrive omaaimewly (?-a)$ No Phema left the moot", r To feu b pbYile leartmt WA die"" a possible +mendmaet to man tWl its 4414"" N LL" of wilala vd l1M ft. an" out" that "film L w year v ills ON reetla Uttm, ewe at, P-dgat eamm Vw ere tn" au as simsle-tealtiy Harr4 limy ft"*"" that tM "m 1sve.1. ION b kl MlWM U Wye a a"~ w W siatlMtlM YMUfyiltifi fm y9" "W" atufdsii eW al•elf 10 is adM W relish srttisesa rmftatem a pdrW" to as tatlel~t faplatid" that sot" a" " "sm" 0"" woN sr 4m w antdaxMlls maeft spas of stewtars WSl € t inm l o stdrw dt sad efbst= efwh trait" of van 4 af I` rat MinVtee ' qust 1t, lage axeMe ?ypanel and Pickup true h diitrietA- P4rkIftq tevekiiao~andt 1`1410►orhe~edca•rviei i 1LtAt lnduetslal uvl Aea on Moral retail, eeSSarciai, limited under the Current 0rdleanC~141 gonad proppeerty is not aueatlen stated tMt vitkeut a definition the!"len on the 1 Would have to determine the meenIA e! •seerai er fury CA" to a citation vas issued, lino 4etera4ir Isnt 1 Nal tars the City ltternoyis Cities dallnitien eras YNStarts Ner world. tAt aside for use wean needed. to nee a the "l0letlonary0j ad put +a•ndaant !e smile to clarity the alon au ate than an intent r s ordinance. "604 of the ai4t parkirq. is e[dtnna On parking applies to oversit It is net rerelated b land ce up, it uses the word PSI an that ue. The V toe 4apartsrnt Me Interpreted this to t . Sean that any awesaat vttthln 4 s0 Aeur seams the aunedevn spin, ?fuse 1s also t P a esd o rood eley routes. ed. LLSIb?Area W and truck t calls allow stoa"" tee" on teu on :-35 ekS tkel are located to stay on deal 4natedps rout are deal tteviler at ae cost or for eke coot at a eyll tank. Casaea shoved tiA an elites of $red ant typo Of trnaka and Vehicles that an easaeniy s th steed of permit around 4101114-full Aaaes. staff surveye4 4crese eke stab ie twenty eltiw at alaffastle~ mule situations. llpteen et a rom Ike t w tettker Wy ra►lilt er Matt elwks in awtdeatlel di trw".: ~aatkln is Working on an usk one ga senln4 A eustisZ4 to test W the truck bo W residenam. Cepp•11'WMv kad so lpaitr trtilaka s a san et a 4 pad. polutt•M Ill) ee tee cities Peek it cities listt tko tgruks aales io k~yy tenAil" isms . /1 3 ' Udine" egw. ?M City Cssnstl gaadlrtlsa Lti d awld.ntiai i an p4 dnas and pn?' it" am tervard•i Lon an +w to !e«saendeelen. pb eaasteslsq for diaeussish :and t•wsime Lsauee er tmeeW C"Undll,awy session thtie" e Yeti rate" by Csuneil } 1) aawld all i YMa et lakwp t eke be wti voldlelsn .eae.eedp areuad P lekwpa` resratlanal wkleiss (ails) r ptek-v Mpy et Mae wllk sore tw 4 ton. pa an "at= !red W ssrteet truek ardinanee. f s1 "stketia and 04141ty of It" lA t" nelekk•eksed 3) ~mt~abM v~ad teat be" adverels!11a so tbn, it to tkim a latsat to adverttde'f tsspim Mve clesspWee" so t"Al adveMlslay to voklales U gem p> MdnaAled ►!rl ~ tnellsf ?M mittsd f.Laltal trwkk V" is t eea tlA. 0 the w IM. eib ~srM up to 1 I itYOM wig i7 to", tilt trueka 4 toga. a) apirlt w of iruklaMw liWiatilN ktI /Mr Bruck pon1 vNlaief Pot"" l a) lrmaka of ""also parked to as ew-st-wy are a wfaty ylNlo. Mai *IM aselid " palkf l iee tv"k WM ailw lkllls it Wra L a a41aaN~ ate a?Mraid itt wMa11M. The "Met" std vet i Mat1r. h r 1 i i PAZ Minutes Auqust tt, tot3 page a k Should the Parkin!/sterags at rsareatienal vehicle, } R.V.s, beats, Otte. be regulated? There is a complex question of lam, use. Ms. Sreek asked the Status Of the trailars parked in front of R-Nast, Ms. Carson replied u°at they are than if sters'a units I.. ' conjunctlons with the o"ansion of K-Nast. , Nt. Rewash asked it there are complaints about Parked ears. Ns. Casson said yea. Al i Me, tn"Ibrecht stated that the zoning ordinance requires two eft-street parking spaces for elngls-!tally ues, No ' asked it then is an tntent of erpeetaeion of what would be parked In the spsa". Ks. Carson said that testa 1s no sits requirement ter single-family. Nr. tngeib:eeht asked bow it to determined that there are two spaces it there to ne sire roollesant. Rd. Green Stated that it to based an sn &Von" size. 7 )iro MMins noted that it tka history at par" ordlnsMSS ~ is oneinsd, the original I"@ was probably for wtwbilss. ltelam Craven, 2314 r, take Intl, Stated that biz ar~a`se' the city to teirly new, It to an at-so Migbb:hoed. re wish" to speak b"LA" sore a" She tea "Mel" in $lnn~~le-tally" .teas, as reaaw► is the e•tety baud to I ssrll shildran M roold"ttel stneta. chlldien "a get i bektM the vokioles am ""Is eat doe Ws. other vable st"Wanoea~en"is not dd"i",i tot a eI"$"s wed of 'MOvvyy vekloles. city is *M%LtAWWa It to aesrdaasy that to ! atreate bb toad ter Mliwtiee, pisht" VA pzbMe "llestia bat these an 1laited uals. Oshtimm= %as to a "toy ba•ard aM bast"d the "tertantien of t" streets. rim stj a is alroedy ""Vista" aft" w,ly otM years. In w!tlen, army drlwwaya are tall to setff. !lnkntoam" to tbe thato waNY 30 bftn; mod iNmew +NN am hav Week it"ps~Pe lived to it. !f it to dssldOd to •ilatl 6" vAU ei in residential Poilwooethrsdr, tIM tk•y sbtid N 14010" to park saly !a till ways. "t N*rhrad Or va lMl am guilty of lite is vital M etts•atln/ w ti iMsl le u our area. ISO fled to teak Mod st O"iM"" W 4""" Stet these areaso tbla/a haw hoOA w a dws tars, pfa Prey Vale" be" pn• down. people YM an bvirNo to lawt_ ie n• gkbor oo" b"i" trstkis by tMlf o tifi"l 'sume "Is to a lot of at"go in Pao" "A doer. Meeaiske~ik~ %M aml"Lon to It" %bboot ~ Sakes th" siry to of 44lw boo" vielioi is mate 1 11s Yoe an villiar, list 1f. Mil, stated Mat ker WWM's trek •ei wa sited Ll 1Yrek# rks IS alat► Ohtftn i about "Sew. !fair trrak r•r left" to !Mir See driwwy and W" sat a mum# Mr br ti all bra to a tell Y~yts et a true ad tM patflq I& %ItM rrim Otter is iota. Ner bie"r" vwls1d sera P ;iw ar w b, ti toKs~bov boo M~hadtaM 40 I 1 pas winatds p H ! ss, ifta favor he had to Sit at the truck step all day and could not vat be" is bed beauae than was no am to pick his up. she was at work am Could not get my. so eft" arrivdd late at night after driving all day. Than it 6164 a II vandalia factor of parking the trek away frog has. nor husband is wry Immaculate and safety easselaas. Ris truck looks alean and better than thJe♦dirty vdiolas and Propped s he ools tthat la Is Paler can allthe cue could not terliin at houses. 4 Valle Richardson, 1111 Rings how, stated that she has lived in her haw for throe "A ono-half years. They have t never had a complaint, ear hush" cows in every t•to j days. "hen he go in it 7110 in tbo "niMe he Aept at the ' truck step N he wouldn't vaka the neighbors, Re came hose around eight. when he leaves, he starts his vaklet$ arts late It run w it Can 14114 up air a" won't bother the neighbors, she has to bask bar ar out at the driveway s" her view Is not obstructed by AM Sal. She is tgalnst str6st varylSaa! tyyy hem elofus, she .ltis lthm ikwdes; ""Mlrog i shorman. Nor road had tiro velteles going down It all the tiw. ?Loy am !hats traetdr Mob oat {14,1046 fey haw awr $100,000• itr►wted, sM his to Nva two ids. It is unsafo to perk wok an Ive "klol4 ewer from bare. Tmt to their noes of ft" a it" a" of "?I" Wit tames, utllitiw, and 1146649464 "wit kn o e kept in goad repair, dote an U40e IL" ear 411 laid s" wok things M thy 1008% be tsiMa4w44, a" M" P!W the erwok in their driveway far scrotal nest ass 1% Mee not haw any stacks. ~My an oo*11t a;.lolls AeiMMrs The man wed Cited ON ter kM tslak eves net at thoif 6aM bosause of a esmtuint, fd maw 1~9"tinq a 0441416t, 1 asewt a selgh"r eft Just f to a" ear is j 1 CWtift Should net trmsk rift he wdthou. Oill~ mem 9944"t 014160 W. belt "b" It tea UUM PC" law an "fare" in oiler eittes. Ifs, Cana replied that eft NM talk" is dlff~ dopertwnta in Sam titles. "ft deal with this iw eisllarly t• Comics. glen set, M a eight I" at my no"" be a eawalmt, way wen "t lwi a ~ kmnttw~ iwo vleiNen, parks" 44 its stsdets is haadie~ ^ am a f"""ly is etlef Chios. "4" lss a psw►ill" othat iMrii srl%sortewrm% M 10wMOfttt"# %W "a yJ"% Poll tithe veliole a few tdei aft the eewstdwtt harts ewes- CMirperees !seek elesad tM polls m"i". Om * Sao w, Ct"m rea>rended that in Hepeli thaw t malt M P"m M a ssaft* 11 W pff of the crust. me. ft"Unesht ask" it tow driveway dsmld dem►le as the w. "no 0414 rem it It Is cities", ear. &g6VPresht wesm""d Mat effest Wt w"Id hew an tent" Sewn ""$I" tote the "rest, w. Carats repii" flat w stir W "dial" there V" a ps'Min$ , b, Y 1 4 a 1 1 i PAS minutes August 39. 1990 page s Ma. Sreek noted that Mv,ng an In the stroot is different than having aosis in tM street. tegelbreeht pointed out that baving one sae, in a driveway Is different than having tot, so has a tear that sore than one Would be parked at housed. Ms. week said flat they need to leek at the alternatives and Go" W With a datinltiea at atorage. Mr. tngolbnoht ebsorved that MAX plek-ups wigh Hers than ti a ten. Aedtheties wet be Wei ad agsihat Practicality. Then soy not be a tee! s014tion. They ea dhey an lisp • .4 nusbor at has vablate@ and re"In that t be Off the street.. It to idedl to park th" el"Whave but they soy net i be alle to to as. Trying to enforce a ono ton w1 ht requirement agually veuld be idpedslble, g Me. break ~~~~sreeyy ebat M b" Pick-ape are Used n personal voblelee. Sbe indlated that a" is eoaoaenod aeeut dataobod wW in the street. Tbay are A sagoly haeard. Streets an net "do forpa rking vakle as at that syn. sha is oppeoed to no in the street. wrs Will have to be dofined- She does net knot .tt a pad id Navieed. Alas wy may vaat is fake "A r the Ott" PnMttyilovedy S; N SM Wt vMSOlee be moved 0!i the Mr. tngslbresht Brood tbat "us should oat be park" is the street ovsrnift. Mass to a oemeidention. lla. CerdM 0414 that plok-upe are us"t trot t" out"% •y tr40k erdlhanee. { no. Brook eeld that beats sot aced to M otaeea in the "no iaatteswd ter long Paris" at tln. lk►. elaseoook aaldAmt Idol bed trall"s da rest now to to y at"" IN w attest eltber. Im lw, flat onto daft be Pass ed sae. Me- stock chid that any type of wwarised wblelea "Id net be eared in w $tr at. a wlkar said that !bore abwld be a tiae It"% on saw left L the street. o r. WwLk* bt ask" ter aen Sabnatl" as pN rogsu4odutd W, Newiss sated wt pal atae is Pg~bless with vWs1ee parted is e1aa mpatent, me" daM be Moor Ve soy net Vmat bewss "fled"" by "RUM lets. Me Carom said Wt w CMStssian laaW at peg" in the !raty~ a taw t *m gd'aad wa pow w lssw ulds. !by mltkt Meat to leek at is pets. lkt. dlaeee"a wid wt At sift M related. ft. k*A WWI sea mu la" Ides" need trrtbsr n"r before teed a M aedts"". l . ti. weiwiea of Can«Natte. for uteabou ft". ' 1 - t J 1 1 ATTACHMENT 8 PU Minutes November 14, 1990 Page 7 i and west side. The owner will be required to grade the sits to encourage a sheet flow pattern during the construction phase. This will be addressed in the platting process. The majority of this site is zoned "A" Agricultural Districts however, a small portion is zoned PD-76 which was passed and approved by the city Council on September 4, 1979 and was established by Ordinance No. 79-63. PD-74 was approved for single Family Residential lots of a minimum of 6,000 sqs ft, in size, and setbacks equivalent to those of the SF-7 zoning district. The two proposed single-family lots will access off of Howard Court. The property is located in a low intensity area as defined by the Denton Development Plan, single family residential land use is encouraged in this area. Lot 41 of Bellaire Heights, Phase rive, has been j designated as a single family lot having a minimum of 6,000 1 sq. ft. under PD-76. The portion zoned Agricultural has been calculated at 60 intensity trips par acre which is the standard intensity trip generation for a low intensity aref. The proposed development of this tract will generate 20 trips for two (2) single family dwelling units which represents a decrease of 53 intensity trips as calculated for this sitea Petitioner: Bud Hauptman spoke on behalf of the owners. He said that Lot 41 was almost unbuildable. The owner had the opportunity to acquire acreage to the north of the lot { and intends to build two single-family homes. No one was present to speak on the issue. Chair closed the public haarin94 It was moved by Ifr. Appleton, seconded by Mr, srgelbracht, and unanimously carried (6-0) to recommend approval of E-94 OOi, ; i VIi, consider ordinance provisions related to the parking or storegs of trucks and related vehicles in residential soning districts and parking on street. { staff Reporte Ifs. Carson presented the staff report (attached). she pointed out that Irving has had to double their code enforcement to enforce an ordinance that R prohibits parking in front yards, Older reeAdences,need to X' a taken into account when considering front yard parking. j A number o! would be effected, Bess people feel that parking in the street should be limited to specifio hours. There are both positive and negative aspects to both sides of these Issues. j 1 I t t Pit Minutes November 14, 1990 Page a Mr. Appleton asked what would stop someone from paving the front yard. Mr. Robbins replied that there is a limit of coverage allowed on a lot. They could pave up to an extent but could r not exceed the allowable coverage. Ms. Carson presented slides of various vehicles to the Commission. She said that the staff proposal does not apply to recreational vehicles or boats in driveways." The commission discussed the proposed ordinance. Mr. Sngalbracht noted that enforcement based on complaints In the only way to be affective and flexible. Me is in w favor of continuing that practice. The police have better things to do. Ms. Brook stated that she is in favor of not parking non- motorised vehicles in the street. She also does not think one ton is realistic. She does not feel like paving of pad sites should be a requirement at this time, she directed staff to present an amendment prohibiting parking or storing non-motorised vehicles in the street and to raise the load limit to three tons. She recommended that all other issues be referred to the Soning Task Force. Mr. Robbins said that he would ask the Task Force if they are interested in looking at the issues. VIII. Directors Report E Mr. Robbins reviewed the list of projects with the Commission. No reported tbAt the Boning Task Force met on november 1194. it cannists of 12 members. Mr. ingelbrecht said that he would like to sae who those 12 ` members represent. The Commission disaosed the make-up of the Task Force. Mr. Glasscock left the nesting, M Future Agenda Items 7 1 ATTACHMENT S PiZ Minutes January 23, 1991 page 3 Ms. Peshari replied that the rationale is that this site has already been through the PD pruCeaa and met entranceway requirements end is in a moderate activity center. Staff is awe from PDS, but in this case, if the in to steer Y not try 9 hospital ever decided to relocate, the building would be easier to convert to another medically related/office use, it is also more flexible for the hospital, saving them time i and expense. Mr. Appleton asked if the hospital might eventually be 3D ! stories high. '0 " Me. resharl stated that the maximum allowed would ue 22 , stories but 10 is more realistic at this Site because that would put Bonnie Brae at full capacity. They will have to x"% comply with landscaping and parking requirements before a ~'"'s Certificate of occupancy would be Issued, 11,( Me, Brock closed the public hearing. Mr. molt moved to recommend approval of the request to i reaone MCA Hospital to office district, Notion was seconded by Mae Morgan, ra Ms. Brock reminded the Commission that they are rationing land and not the use. Office honing does not seem inappropriate at this location though, . Motion carried unanimously (6-0), r ~`f I iii. Constdsr a recommendation to City Council amending Chapter 26 o.f the Code of Ordinances and Article 1S, Appendix S, Code•of ordinances related to the parking and etorags o! trucks and related vehicles In residential toning districts and parking on Streets, ta'" Staff Rsportf Me, Carson stated that this is the third title staff la presenting infor~sation to the Commission on the ~ parking issue$% She presented a draft ordinance to the commission and reviewed with them the changes entailed by the ordinance. She said that Some of the toning Task fore* ' 1 members veto concerned about the nuisance of recreational vehicles, Me, Brock asked about their coneerns, Ma, Carson replied that Specifically, parking large RVs in 3 driveways in Eeone of houses can block the view up and down the Street and they are theta constantly, , r, Mr, Robbins said that the Task force WAS reviewing toning f ordinance amendments, They indicated et a group that they II lnformationtonochangestandAthatawasnprovided tohtham~ntad + 'i 1 Y . P&Z Minutes January 23, 1991 Page 4 Ms, Carson said that RVs are parked for long periods of time f and are not good visually. There are lots of them and it would be hard for citizens to do anything about them without modifying their sites. That might create more long term problems than the exemption. Ms. Brock said that she is concerned about traffic hazards. There could be a parking pad on the side of the house. Ms. Carson said that there is some potential to do that but as long as th'6 Vehicle is past the curb line and is not out in the officers streett there that are people speak to their neighbors bout visibility problems. Mr. Appleton noted that RVs are parked for long periods of A f` time as opposed to 18 wheeler cabs which are only there for ,r a short time. Mel Carson said that staff is open to suggestion, The caL# weight I ordinance o that ~ may tons. prohibit Staff them from parking in the rstreet. Me. Morgan asked about the problem of people moving vehicles just a few feet in order to start the storage countdown over. ! Ms. Carson said that a good solution has not been found. i Mr. Holt noted that a truck cab weighs more than an RV, but an RV takes up more space. Ms. Brock said that one is a residential use and the other is a commercial vehicle. Don Wheeler stated that he drives a commercial vehicle for a living. Most cities prohibit vehicles over 6000 pound. Some fool that these vehicles are okay on streets that taxpayers provide for. it someone can afford a $100,000 vehicles then they can afford to store it. it is the some for RVs, There are storage areas all over the oily. He drives a truck but does not want to see one driving through or parked in his neighborhood. He does not want the streets more torn up. I Rosemary Williams stated that her husband drives an 18 wheeler. He only gets to come home for a few days at + ,y time. He takes pride in his truck and respects weight limits. He leaves the trailer at the truck stop. They encourage others to do so as well. They keep heir vehicle r, in top condition and just went to park the cab a the driveway. she works and often gets home lste. If he cannot ; drive the cab home she has to go get her husband. He was ; n IIR7A~ d . ' i 1 i P62 Minutes January 23, 1991 Page 5 very sick once and she could not get away from work so he had to stay at the truck stop. They do not have a business other home, He just wants to be able to drive Their truck weights 16,500 home like any their Lavell Richardson, 1114 Kings Row, stated that Kings Row is right off of Sherman which is part of the truck route. Her husband is an owner/operator and they have $100,000 invested. The payments run $1400 per month. They gross about $61,000 and two-thirds of that goes to cost other than the payment. They cannot afford storage. Her husband could not pass a physical and is forcRd into this type of business. Mr. Kamman noted that there is nothing in the proposed ordinance to keep trucks from parking on the street for 48 A;G hours. Mr. Morris said that trucks will be required to stick to they ' truck route except for delivery and repairs. The commission discussed the weight of trucks and the parking proposals laid out in the draft ordinance. ; i s Mr. Holt said that he has heard many people complain about E RVs. He sympathizes with the people driving the truck cabs. He wishes everyone would be as conscientious as the { people who spoke in favor of having truck cabs parked at v their homes, Yet the question is whether there is harm to someone else. He has neighbors with tractors and they don't bring them home. It is a nuisance when they do on occasion. He has an even greater problem with the RVs which stay around all the time. He would rather have RVe behind the front line of the house and hr,s no objection to special kr, concrete pads. Ms. Carson said that some of the rower houses don't have room on the side or in the back. Ms. Brock noted that an RV must be parked at a house so it can be packed. Mr. Appleton suggested applying a time standard such as 48 hours. Mr. Morris advised the Commission to ask themselves if they really object to the problem and if they want to regulate 1 its The peasant ordinance talks about storages The definition of storage and the lack of weight limitations are I a problems A weight limitation can be set but there is still going to be a problem with the time allowed for parking in the street. The Commission discussed various options for reguiati,19 parking, types of vehicles allowed to park in residential areas, and possible revisions to the ordinances PSZ Minutes January 23, 1991 Page 6 Ms. Carson stated that most cities do not allow tractors to be parked at residences. They treat RVs differently. I Flower Mound measured vehicles when doing their ordinance. Abilene has setback requirements. San Angelo requires them to be parked inside or in a side yard or rear yard, but not bordering a street. Requiring RVs in side yards or having setbacks seem to be the only two workable options that other cities use. That keeps them from always being in front of the residential structures. tqµ Mr. Holt asked if any cities allow parking of tractors. I E Ms. Carson answered that the only one that doesn't have an ordinance is Lufkin, which is currently working on an ordinance to prohibit them. s Mrs Holt moved to instruct staff to prepare an ordinance regarding the street where parking any vehicle on the stroot y is prohibited if the vehicle weighs over 3.5 tons. Also, prohibit storage of any vehicle on the street. That will r . keep big things from being parked on the street as it~would under how it is written now. Ms. Brock asked if his motion would allow the present r' exemptions. I Mr. Holt said that section 24-26 dealt with that. So he would add a sentence in there that no person shall park any vehicle in a residential street that weighs in excess of i whatever, That takes care of parking of the vehicles and then we kind of continue with what we have about storage. That takes care of big and broken down vehicles on the t~ streets. , ,tt:,,, Motion was seconded by Mr. Appleton. Mr. Robbins clarified that Mr. Holt meant in residential Mr. Morris asked if it would be okay to put the parkin gp byy weight limitation in the zoning ordinance and the Commission agreed. Motion caeried unanimously 16-0), Mr. Kamman stated that he Supposes regulating weight would Yr j regulate site, b Ms. Carson said that it would be defacto. Staff did not want to have to measure vehicles. She will do further L. research on RV parking. , ' 1V. Consider the preliminary and final plats of the Hood house Addition, Lot It Block A. , 1 r Minutes ATTACHMENT 10 ; PLANNING AND ZONING COMMISSION HAFT March 6, 2991 special was p.m. in Planning the n Council g Chambers of on a March l 6a 1991, meeting at o 5:00 the held City Hall, 215 East McKinney. Present: Roy Appleton III, Euline Brock, Jim Engelbrecht, Ivan Glasscock, Judd Holt Absents William Kamman and Fran Morgan i Present from Staff: Frank Robbins, Executive Director for Planning and Developments Donna Baker, Planning Technician) Cecile Carson, Administrative Analysts Steve Seese, Urban Planners Harry Persaud, Senior Planners Owen Yost, Urban Planners Joe Morrie, Assistant City Attorneys David Salmon, Engineering Departments and Olivia Carson, Secretary Chairperson Brock called the meeting to order. I. Hold a public hearing and consider recommending an ordinance regulating the parking of certain trucks within the city r ry. limits. a"? Staff Report: Me. Carson stated that at the January 23, 1991, meeting the Commission reviewed a draft ordinanc6 and requested additional information on restricting the location k for parking recreational vehicles. In addition the Planning and Zoning Commission directed the staff to y'.> restrict vehicles over 3.5 tons from parking on + local/residential streets in the SF-6, SF-130 SF-10, SF-7, ;a 2F, MF-R, MF-10 MF-2, Or and NS districts. Mr. Holt asked how much a Winnebago weighs. } Me. Carson said 4-6 tons. She said that she has reviewed € ordinances, surveyed other cities, and checked other sources. She looked at what we have in Denton. In the proposed ordinance, it will be a defense to provision 2 if the vehicle is an RVs however, the RVs will be requited to d<~; i meet setback provisions. The two setback provisions are options. Number 1 is applicable but if that cannot work, then Number 2 applies. Some people do not have sideyards, ~s. The 101 setback will hopefIjlly address concerns of being able to see around the vehicles and should give a view of the street. An additional item to consider is whether the ; surfaces should be all weather. A member of the Citizens Traffic Safety committee was concerned about parking on the lawn. The other extreme is that someone might pave their yard. Staff has no recommendation on that issue. The regulations will work either way, it is a judgement call. The setback provisions are the most logical way of puttingg limitations on the parking of RVa, and there are lots of RVs in Denton. t~ Y F C Wit e`- pas minutes DRAFT March 6, 1991 page 2 I a` Mr. Holt said that this type of ordinance has the effect of giving neighbors a remedy. He asked if it would be enforced on a complaint only basis. ? Me. Carson said yes for the most pact. Mr. Holt asked if a tractor that exceeds the limit and is parked in a driveway for a few times a month without " complaint woul4 be okay. Not Carson said that if there is no complaint, then Code C ro Enforcement might not be aware of the violation. if they were in the eras and saw the violation they would take 1- ; action. Mrs Appleton noted that the heading for the regulations ie" 'special off-street parking Regulations`. The regulations do put a limit on what can be parked in the attest to the + wording in the heading needs to be clarified. Lynn Holt, 2520 Bowling acean# asked if what would apply to j ; an AV weighing lees than 7,000 lbs. 1 ;N Mai Carron said that section 2.Ds regarding AVe would apply I 4 e Mr. L. Holt said that some RVs would not be able to meet the setbacks or would not be able to gat around the house. fie ' asked it there was a time limit of loading and unloadinqs All has Brock said that if loading was continuous$ it would be temporary. Mr. L. Holt asked About contractor's trailers parked in the s street. j Ms. Carson said that typically vehicles doing government tasks are not regulated by these provisions. ' ytl: Mr. Morris said that trailers can be added under the maintenance provision. ,a { Mr. L. Holt asked why residents can't do it if the, city can do it, it was lust stated that government agencies are usually exempt. The regulations should be fair to all, There was a city trailer left in one spot for 6 weeks. Ma. Carson stated that the City has been asked to move vehicles that are obstructing views, it take$ tatPaYets money to move them so they try to make access to the vehicles at a construction site convenisnti ' Mr. Salmon stated that the recycling machine is rented. It Is so large that it is hard to move a lot so they try to do i r » L k ~f. i P6Z Minutes I~ VA. yyy~~~ R A T March 6, 1991 g 3 Page all the streets in one area at a time. The machine is not typically left anywhere for 6 weeks though. was seen the Mr. Engelbrecht The that he stored e continuouslyrat machine has t0 by y M Mri. . L L. . Holt. one spot. Mr. L. Holt noted that there are other items Such as trees that cause visibility obstructions but he agrees with the ~ 10' setback. i Rory Williams, 2701 N. Bell, said that there are new federal A standards in regards to the noise made by trucks. Trucks .a can at a higher gear without trailers and are quieter. Her husband parks his cab in their driveway. They have never had any complaints in the last six years. He is almost never home. They do not store the truck in their driveway. and they leave the trailer at the truckstop. Their truck is not a storage item. z., Mr. Appleton asked if most truckers park their trucks at the r " atop or if they bring them home. ty, Ms. William said both. it is a mix. Mr. Engelbrecht asked if there was a secure area available to park the truck if they would consider leaving it there. I a Ms. Williams replied that rent is the key. There has been, vandalism at the truck stop, if there were a secured area x they would consider it but they do not have that option now. LaVelle Richardson 1117 Kings How, said that her huaband'a route goes to Florida and he has asked around about this issue. They don't allow parking but the city provides a. secure area. Most people are retired and have winter homes i r there. The cities provide a secured area in the community !f E with a 24 hour patrol. Her husband lives in the truck up to 30 days at a time. He sleeps in it and it has to be cleaned. They have to vacuum it, change the sheets, and pack it. There are no facilities elsewhere for vacuuming. l They also do not have much time to do these thinge. They are totally against on-street parking. They have plenty of E room in their driveway and do not block views. There have been no complaints against them. The complaint which brought them to attention was about a neighbor that had I. parked a full U-Haul for over 30 days. The Code Enforcement officer just saw their truck in passing. Their neighbor's dogs and lawnmower makes more noise than their truck. They are taxpayers and are stretched financially. They do their best to be law-abiding citizens and comply with rules and f regulations. Her husband mostly does the Florida route. r, " . • i I . Vii. , S } wool Ma ant Tit P&Z arch rch fi, 1991 M page 4 She continued that it is dangerous on the want hwaybe able to Truckers are shot and robbed. They Just park in their own driveway. They make constant repairs on the truck and go through lots of inspections. There is a i $1,000 if anything is out of order. They are always concerned for their neighbors. E.N, Craven, 2218 North Lake Trail, stated that he moved into a new SF-10 neighborhood on June 1# 1984. He does not want 18 wheelers parked in the driveway adjacent to homes and doing repair work there. There is no place in a residential neighborhood for storage of an 18 wheeler. I 1 •I A , Mr. Appleton asked Mr. Craven what he thought of trailers ° I and RVs. le ca Mr. Craven said that he does nthenitheyhshouldfbpeople ton 1 pay multi-thousands for them, } store them elsewhere. a^, ~ Mr. J. Holt asked if he meant the tractor only when he said i i8 wheeler. f Mr. Craven said yes. He does not want the tractor without Jjj N the trailer in neighborhoods either. Recommendations Me. Carson stated that she has just received the revised Richardson ordinance. They limit t 4 A:f vehicles to one ton and have added setbacks. Staff ie i recommending the proposed ordinance but has no ii recommendation on whether all weather surfaces should be required. ' Me. Brock and Mr. Appleton clarified that the ordinance << increases the weight restriction, from 1 ton to 3 . 5t dads a provision for temporary loading and unloading, and adds setback requirements for vehicles over 7,000 lbs. Mr. J. Holt asked if someone would be able to build a „t detached garage 3 feet from their neighbor's property. 1r ' "ZI Mr, bobbins said yes, ~Mr, J. Holt noted that most driveways are within 3 feet of the neighbor's property lines Me. Carson said that if the vehicle is more than 3,5 tons there is a setback from the side property line. Mr. Appleton stated that if a large RV is allowed, then why a a not a truck too. f r P&Z Minutes R A F march 1941 Page 5 j Ms. Carson replied that a tractor is not a residential use. An RV is more residentially oriented. Complaints about RVs are of aesthetics. Some people are very conscientious and others aren't. i Chairperson Brock closed the public hearing. Mr. Robbins reviewed the zoning regulation for side yard .r setbacks. j y Mr. Appleton stated that he does not see why exceptions should be granted to RVs and not tractors, Hee cannot eyesore, persistent separate the two. The truck is a le He would like to have the setback standards apply to both. Either get rid of both or allow both. RVs are more of a L• lifestyle than tractors but he does not want to get into a social issue. Mr, Engelbrecht said that a truck is a commercial use. 11 person with several could continuously run them in and out ; of their home. ' Mr. Appleton said that there should be other regulations to deol with such an occurrence., Mr. J. Holt agreed with Mr. Appleton. Both trucks and RVs block views. They are not attractive. The object is to try {1 to protect the neighbors, not the home owners, 2.D allowing RVa should be removed from the ordinance. If the neighbors don't mind the vehicles there probably won't be a problem } but a remedy is needed for the less conscientious, there are more RVs and more complaints about them, 1K F Mr. Appleton said that he would prefer to add tractors to 2.D rather than cutting RVs, That punishes both. Me, Carson said that they are the largest and heaviest, if there are setbacks there will be grumbling but they will have to comply. Mr. J. Holt noted that the majority of people in Denton have. front driveways. Mr. Engelbrecht said that Thhe agrees e with k1r, should equal limits, an street Both have large mass that the neighbors have to view, Everybody has a complaint about their neighbors and y' they usually let it ride because neighbors are there for a l; long time. Practically speaking# this ordinance won't be enforced except when there are complaints, Mr. Holt moved to amend section 1,C,2. by striking D, a ``r' • I i P&Z Minutes March b, 1991 n wig !i~ Page 6 'R A F 1 Motion was seconded by Mr. Engelbrecht. Mr. Appleton said that at least the motion made the ordinance equal. Aesthetic views should not get in the way of the property owner. They have some rights. if there are persistent problems, then this section could be added back to the ordinance later. But the main issues seem to be safety and aesthetics. Mr. Engelbrecht asked why aesthetics are the first issue realtors bring up when they try to sell your home if they ! a are not important, i ` Mr. Appleton said that the city should wait and see how persistent the problem is. Mr. Engelbrecht asked if parking trucks in tLo driveway was legal under the old ordinance. Meg Carson said no, Ms. Brock said that there are other city ordinances that k~ deal with aesthetics. There was house on her street that had a weed patch of wild flowers. Most of the neigghbors „i viewed it as a weed patch, only the owner thought it was fa~ beautiful. The city ordinance regarding mowing weeds was ^H applicable to the patch. Motion arried (3.7), Mr, Appleton and Meg Brock voted no"+ r Mr. J, Holt moved to recommend approval of the propoebd LJ ordinance. Motion was seconded by Mr. Engelbrecht and unanimously carried (5-0)., Mr. Appleton moved to amend section C,7,A by adding trailers i temporarily parked for construction or repair work, motion , I was seconded by Mr. Engelbrecht and carried (4-1), Mr, J. I Holt voted no. Up. l a 1 ~ f DATES 94/09/91 j CITY COUNCIL REPORT FORMAT TO: Mayor and Members of the City Council FROM: Lloyd V. Harrell, City Manager suBJECTs A PLAN FOR GREENBELTS RECOMMENDATION: r The Planning and Zoning Commission and the Beautification Commission ` recommend approval. The Parks and Recreation Board and the Chamber of x Commerce Governmental Affairs Committee have endorsed the Plan for .z Greenbelts. S MAR s ~The attached resolution recommends amendment of the Denton Development Plan by adding the delineation of the 100 year flood plain as a greenbelt on the concept map and by adding a greenbelt specific area policy section. The resolution also recommends creation of a flood plain strategic issue work plan. Also attached is a resource book which includes a theoretical basis for < 04 j ~ greenbelt pollcy,a summary of current city policy and regulations relevant to flood plains and greenbelte, and a bibliography. Denton has a significant existing policy framework and important i regulations in piece to protect and appropriately manage our singly most i important environmental resouress the flood plain (see the Resource Sook)s + The purposes of the attached documents are tot 1s Reinforce out goal to protect our environments 1 26 Create a visual depiction of our policies (a) to effectively manage ` the flood plain and (b) create and develop it as a greenbelt (the 1 Concept Maps 2, Create greenbelt development and flood plain management to a strategic issue and apply strategic planning techniques to teaching greenbelt and flood plain related goals (The Strategic Issue stork 4 ~i Plan)$ 4s Summarise the existing goal# policyt technical, regulatory, and incentive structures within which later decisions may be made (The > Resource Book). r tl I i" i t A, a At ° 4 r a p' •.i Sf' 771- Council Mayor and City Members l,pril 9, 1991 Pains a,,d developing them page 2 protecting the natural character of our flood P as greenbelts will: 1, protect our environment. 2, Enhance oui quality +f life. quality of our water. i 3, Protect the q water supply. vailability of underground to Preserve the a t t e in the most cost effective waY• 5. Mitigate against flood damag en space `tt 6, provide coat effective and oiversified recreational and open opportunities. 7, Enhance the appearance of the copmunitY and the region. lace to live and work. " g, Enhance the attractiveness of Denton as a P does include a the staff recommendation ions-nog wevit, as j As we had stated before, regulatory p omulgatedr llution abatement rules are P' ulations, recommendation fo r more strict with new rag mandated storm water po required federally to comply and its developers will be is Issue Denton 1 are listed in the Strateg by city government aed actions propo work plan. Committee ,s t UCKG t, the reinforcement of our Since March 1990, we have been discussing E a inancially responsive service, recreational► and lcation goals by adopting the attached resolution (Attachment 1)~ environmental, F beautitabout this during your Summer 1990 retreat, Ster then, runofi we last spoke s associated with greenbelts and storm Utility Board and j many of the concept the public idrainage the creation of [ a a Pollution abatement have been 8iacieorle9 by lore. City Council in the context of exp of tllity. Council has reeolvb~ttBocutatheufund! 9nt~ development Lewiallexp u rasa authorized, 4ke Robe rte and Lak this. Cong reenbelt between L!k :.aY the elm pork g Saving 9 cess element in our reenbel!° has been discussed as a suc go planninf ,r i i i i r Mayor and city council Members April 9, 1991 page 3 :y PROGRAMS DEPARTMENTS OR GROtSPS AFFECTED: ' Parks and Recreation Department, Engineering, Utilities, Planning and Development, Capital Improvement Plan, recreational enthusiasts, developers. FISCAL IMPACT. art of the strategic issue work plan. ti I To be determined asp 4Respect ly submit d iI arrell Preparedby: Cy ger I E.. Approved: r Prank a ob na, AICp ' Executive Director K Planning and Development t 2617x 9.. Attachments: r ' } 1. plan for Greenbelt Components 2, The Resolution a. Amended Concept map showing the 100 year flood plain as a greenbelt. b. Greenbelt Specific Area Section _ E c. Strategic issue Work Plan 3. Greenbelts for Denton. A Resource Book. S. A Theoretical framework b. Current Policy Framework c. current Local Regulatory Framework d, Flood Insurance Rate map e, A Selected Bibliography to .V I ' i 111` ' 1 1 ATTACHMENT 1 { . A PLAN FOR GREENBELTS i COMPONENTS 1 A plan to protect, preserve, and appropriately use the 100 year flood plain. t A. Communication of goals and establish policy framework in the Denton Development Plan. o Show greenbelts on the Concept Map. o Add greenbelt specific area policy. o Consolidate existing policy statements. 1 , B. Adopt environmentally, fiscally, politically, and legally sensitive regulation. o Flood damage prevention. (Adopted), o Drainage regulations for new development. (Adopted). o 2oning ordinance. o Regulatory incentives. o Storm water discharge permits. c, Adopt Park and Recreation acquisition and development i fy, policy and plan. ' o Park dedication policy. (Adopted). o Denton Development Plan Greerbelt Policy. (Adopted). { o Capital Improvement Program. 4 D. Develop a strategic implementation program which (1) maximizes scarce resources, (2) is based on detailed study, (3) is consistent with adopted goals and policies, and (4) considers the development of a drainage utility. E. Adopt comprehensive master drainage and storm water - pollution mitigation plans. r i 2375k C i T WWI i II '"Sol i i I ATTACHMENT 2 RESOLUTION NO. A RESOLUTION AMENDING THE DENTON DEVELOP14ENT PLAN BY ADDING A GREENBELT AREA UN THE DENTON DEVELOPMENT PLAN CONCEPT MAP ASO SPECIFIC AREA POLICIES FOR GREENBELTS; AND ADOPTING A STRATEGIC ISSUE WORK FLAN FOR GREENBELTS. area policies e may P be n adopted; states the framework for which WHEREAS, Denton WHEREAS, the lUO-year flood plain is an area which has a need for special protection, preservation, and conservation; that i the 100-year flood plan contains valuable archaeological and I natural resources; that the IOU-year flood plain is an area appropriate for special treatment; that the 100-year flood I plain presents special development problems due to its flood hazard potential; that the 100-year flood plain provides many varied and useful park, recreation, and open space opportunities; and that preservation of the 100-year flood t plain and its ecosystems in a natural state can significantly r mitigate urban runoff water pollution; and WHEREAS, it is the adopted policy of the City of Denton to make I maximum utilization of flood plain areas for parks and open t spaces; and that these areas should form a continuous belt of t, open spaces and park land for organized gamesinpicnics, ; ball and i fields, walking trails, bike trails, and Jogg g p WHEREAS, a Greenbelt/Linear Park policy has been adopted in the r Denton Development Plan; and i WHEREAS, the City of Denton has adopted flood damage prevention ordinances whi accordance withhFederaltlaweandoregulations; anaod plain in WHEREAS the City of Denton has adopted land development regulations to minimize loss of life and property from flooding and to retain natural flood plains in a condition that storage, aquaticeandcterrestrialdecosystems, andsground and r surface water; and, WHEREAS, adoption of a greenbelt policy and plans for Denton, will serve to demonstrate and reinforce this community's goal of protecting our most important environmental resource; and 237Sk f i WHEREAS, the City Council has begun to explore the development a' of a drainage utility systtm In anticipation of the impact of llotion abatement standards as a consequence new storm water po of implementing the Clean Water Act, ' NOW, THEREFORE, THE CITY COUNCIL OF THE CITY OF DENTON HEREBY I RESOLVES: SECTION I. That the Denton Development Plan Concept Map be ame~crby adding the IUO-year flood plan. as a proposed greenbelt. SECTION II. That greenoelt specific area policies as attached ereto are added to the Denton Uevelopment Plan. SECTION III. That a Strategic Issue Work Plan as attached be mp emente . , PASSED AND APPROVED this day , 1991. Mayor o ast a erry ATTEST: r a Jennifer a lets City Secretary 1~ - N X14. r .tl,1` ; ~r. ~Xa fi 2175k k 1 F, s. t ~ Y ~ •t t I' Denton Development Plan Table of Contents i a Y n~ IV. Chapter 4. Specific Area policies .................94.1.44.3 L. Greenbelt Area :w P i 1 n ~ P I r i , 1 X• IS. I~ I r •i ~ I r b~ i IF 3 t. kr ~ ~ ~ I:Y Ytl. ri ~ P 1 ~ Y G f , i t. r{ y I ~r i F P t r ~ 4 i' r~Y 2315k xI f,, a T4 DENTON DoVELOPMENT PLAN LISTS OF MAPS MAP SHOWING THE FIVE PLANNING AREAS WITHIN S t l THE GREATER DENTON PLANNING AREA { 16 x II. CONCEPT PLAN ' 48 III. N8IGHBORHOOD PREStRVATIUN MAP 53 I IV, LONG RANGE JCHOROUGHFARE PLAN 59 V. LOCAL MASS TRANSIT SYSTEM 60 VI. REGIONAL MASS TRANSIT SYSTEM It, MUNICIPAL AIRPORT AREA. Land Use Concept 86 Map 94.4 } YI[[. EXAMPLE FLOOD INSURANCE RATE MAPS v r Cam: S Ir,. 1 f r i I 4 r r ~1 « I. 4 ~ 'n f + 237Sk ~T , . 4 NANO" CHAPTER IV: SPECIFIC AREA POLICIES L. GREENBELT AREA. The 100 year Flood Plain. The 100 year flood plain is the area whicei will be inundated by a storm water event that has a 11 chance of occurring in a year. In jurisdictions that participate in the federally subsidized flood insurance program, of which Denton County and the City of Denton are numbered, strict:. regulatory controls of development within the 100 year flood plain are mandated by federal law to mitigate against loss from floods. Federal agencies provide participating jurisdictions maps of and data about the 100 year plain. An excerpt of such a map is Figure VIII. i I The scientific study explaining the environmental sensitivity of and appropriate regulatory framework for flood plains is well established and long standing. A few examples of this are included in the Greenoelt Resource Book available in the Planning and Development Department. The flood plain also holds the community's most important recreational opportunities. Most of the park and recreational areas of the community could be located within or contiguous to the flood plain. " More and more the real estate market is taking into account the valuable amenities and resources within the flood plain. r.: Maintenance and enhancement of natural processes in the flood plains is a least cost solution to mitigating storm water runoff pollution and protecting the community from , flood losses. GREENBELT GOALS, OBJECTIVES AND POLICIES ' GOAL/OBJECTIVE IV. L. Much of the 100 year flood plain ought to be used as greenbelts because: 1) Flood plains are the most hazardous place to develop; 2) Many natural features within flood plains, such as wetlands and hardwood forests, help purify storm water runoff, and mitigate against sedimentation and soil erosion; j 3) Natural flood plains are important wildlife habitats; ~ 4) Flood plains are our greatest recreational and open space resource; S) besttraofnousporrtprdewisentthianndafnducaptuture flood plain and the water bodies inside the flood plain; 94.1 23JSk b 1 S ` 6) Flood plains in a natural state provide the most cost effective method of discharging flood waters I~ and mitigating against flood damage. i Accomplishing this goal will require the use and balancing of } regulatory prohibitions, public incentives, public acquisition ' and use of some of this resource, private ownership of most of ` this resource, and continued recognition by real estate market forces of the amenity value and the dangers inherent in the flood plain resource. POLICIES + IV. L. 1. See Chapter 11, Section F. Parks and Recreation, C. Greenbelt/Linear Parks IV. L. 2. The city's regional, community, and large neighborhood park system should tie into a greenbelt park and recreation system in and along flood plains. Emphasis should be placed on park land acquisition within and/or contiguous to the flood plain. IV. L. 3. While other uses will be permitted, a S, particularly appropriate use of the flood plain is as a greenbelt. Greenbelt uses ' include passive and active recreation; conservation, non-development of the most i environmentally sensitive and flood hazardous areas; pedestrian, equestrian and bike ways; agricultural uses; wildlife habitat; drainage ways; and as buffers between different land uses. The most appropriate use should be determined based on detailed analysis of the " environmental value of a particular flood ` plain and the impact of a particular use. IV. L. 4. Building construction and filling of unchannelized floodways must be strictly regulated and may be prohibited by regulations. ° IV. L. S. Building construction and filling of the area j between the floodway and the limits of flood k plain (the flood plain fringe) will be allowed I. where environmental degradation is slight, the { existing character of the particular flood plain Is maintained, or a natural character is enhanced. IV. L. 6. Use of the flood plain fringe as a greenbelt ` is a community goal for which financial and ! regulatory incentives are available, and for which other incentives should be developed. ~I 44.1 wy~ 2375k i IV. L. 7 Major channelization of floodways should be prohibited except where no other reasonable means of floodwater conveyance is available or where it is neededand water quality improvement. existing flooding IV. L. 8 Retain in their natural state those wetlands having value for water retention, storm water i on mitigation, wildlife habitat and open pollution opportunities. Improvements o[modifications masteroplansffordstorm t ' IV. L. 9 must be coordinated water management, utilities and parks. Any ff variations from plansamust be ssubmitted supported by pp p to the City for review and comment. to reduce flooding by increasing ; IV. L. 10. As a means times of concentration of flood waters, to tt mitigate water pollution, and to control erosion, the most desirable drainage desflow of approach is to allow low velocity sheet i urban runoff across vegetate greenbeltslprior to the runoff reaching the IV. L. 11, The greenbelt concepts and policies stated above should estpmanagementspractices" required developing "b to meet storm water pollution abatement only designed to implement the clean Water Act. Definitions:, 4 Flood lain. The area designated as subject to v oo ng rom the base flood (1T00-year n,. li the Flood insurance Rate Map. includes the floodway. ' Flood~. A rive[, channel, or other watercourse w amt a adjacent land areas that must be reserved tt in order to discharge the base flood without cumulatively increasing the water surface elevation 4 hr or, ' j more than a designated height. h Figure 8 -Example of Federal Emergency Management Agency See Maps. i < i 94,3 a 2315kr'. 2315k „ml I I f i I FIGURE VIII\_ f EXA~[PLE OF FLOOD v INSURAN TE (~p LEGEND oT141RTLOOD ARIAS %?kCIAL FLOOD HAZARD ARIAS INUNDATID 20N1lt Areas of 100•reu need; uea% e1 IY IMY SAN FLOOD 00•vfu Rod with a.uye dedtha of hM thin I foot or with dralege 20N1A Newn.wta.arwwre,ued, W66 IM than 1 leure roar, and 20NIAI dvflood! awodegewpeytee areas protected 1y IereM Fran 100• rtu (bad. 2014IAN fro" e.rMof tft l/o"(,%Nller. .0 OTNIRARIAS eeednfh w new de.e..er #,"Mow. 20141 X Atoll determined to be outside f00• 20141 A$ flood de"I of I to 1 IM Iorapf d oo vex need plain. lte. M /.Mf tM.I.): a.w.p eootM IONI O Areas in which need hMuds W I. nod. P w w.Y o1 sts,"ta f.e no" 1lndelarm few. . ~ 1."loop" YM O"Win,w. 20NI A$$ T. N rHMW ben ldOrodr flaw ee Flood Ieunduy f.errY Reed eHlNIiM noe m W"w ' WINNOW e;"e.r«..WeMe.tarwMod. ~ fleadwae IOendvv 20141 V Caws flow .M)1 .0"" haterd 1.4.0 ..tl..l: M No Mod M.eeao. Mr• ' 201109109 C.w1 food •nh .yrya hyyf f•a•e . ~ ~ . enlooll wr need .4..ue,t. "W "O& .t FLOODWAY AREAS IN ION$ At s I . RM 22 1 ' t'Yrr / I LIMIT OF OITAI i RoN1lt. t.•„ t/ LIOlTUOY 6 2014! 11 * -'=e J~.rr ,r; e•.~ne•0 RM worard 6erV M 21 29' 1 sI ar ZONI A!,ef~ T L' 6I? ZONE A i 1R'~ a Io[rTN'll ~T ~~'~;L2o,+~r~•ro~"m, I IL Jf b~ ' 67! e., 1 e , 91l ems, s f 7 RM IttA W to R, r m E 1 of ~ZA r to of pit flf N• '7+ * \~,1~►,11~ % NATIONAL rtooo nrsaAoco FooooAN ,111111 IYlead lip off? It" toml i'~ » r rare :oN FIRM FLOOD INSURANCE RATE MAP ;f CITY OF DENTONf TEXAS i DEMON COUNTY _ ^ { i i Dates March 28, 1991 Page l of 3 M CITY COUNCIL STRATEGIC ISSUE GREENBELT/FLOOD PLAIN MANAGEMENT Howard Martin Bob Ticknor IMPLEMENTATION TEAM: Frank Robbins Jerry Clark 8111 Angelo Karen Peaha[i Steve Brinkman Owen Yost E Goal Statement: Protect the environment, water quality and water quantity) limit flood damage) limp public drainage i costs) maximize recreation opportunitieso and beautify Denton by protecting the 100-year flood plain as the Denton Greenbelt. I { I l I 1 { OBJECTIVE/TASK I ASSIGNED TO INEEDED BYI ACCOMP- I RESULTS I IMPACT ON BUDGET, AND/ I( 1_ I I I LISHED I i OR CURRENT ACTIVITIES l! I ) 1 I l t ! le Explore implementing I Blue Ribbon 1 1992 1 1 I Major policy inane it { a drainage utility I Committee I 1 I I about new funding ii 1 district to fund drainage,) l I I ) mechaneie. i. recreational, and environ-k 1 mental improvements. l 1 { I I I ,y 1 None E 2. Complete an environmental 1 Karen Feshari 1 1992 I I assessment and a detailed I Steve Brinkman) I I I { { greenbelt plan for one of I Howard Martin I I 1 1 ! l• I Denton's five major water-1 Jerry Clark I I I I I~ 1 sheds. Seek assistance I Owen Yost I I I I [ from U.S. Fish and Wild- I I I I 1 I. 1 life Service, the Corps ofl I I I i { ' 1 Engineers under Section I ) { I 1+ 1 306 of the Hater Resourcesl i 1 1 I I' I Development Act (WRDA) 4 i ) 1 I 1, of 1990. { E' I 1 I i I !t ' 1 3. Request a Congressional I Frank Robbins I May 19911 1 1 kS I resolution directing the I Bob Nelson I I I I I { Corps of Engineers to I 1 I I I I { conduct a reconnaissance I I I I I ! ; study of all of Denton's I I I I I I a rr 1 flood plains in accordancel I I I l I ti ) with Section 306 of the I I I I 4 1 WRDA. I I 1 I tl 1 1. Add greenbelt improvement I Steve Brinkmanlreb. 19921 1 1 Look7m6ro to flood l , n.' to r futu, i Items to the proposed CIF.` Jerry clerk i I plai I I i teereational`aleaY: "1 1 ~ 5 r w 2375k/27 Y' r ~ f r ~ n y 1` r S jj i 4+,• 6 Page 2 of 3 Date: March 28, 1991 CITY COUNCIL STRATEGIC ISSUE GREENBELT Howard Martin Bob Tickner IMPLEMENTATION TEAM: Frank Robbins Jerry Clark Bill Angelo Karen Feshari Steve Brinkman Owen Yost Goal Statement: protect the environment, water quality and water quantityj limit flood damages limit public draina a as costs: maximize recreation opportunitieel and beautify Denton by protecting the the Denton Greenbelt. I I i I I ACT ON OBJECTIVE/TASK I ASSIGNED TO INEBDBD BY1 LISHED- I RESULTS { ARPCURRENT ACTIVITIES' I , 1 I { I LISHE6 I I l { I I I I { 15. Include bikeways and I Owen Yost loot, 19911 1 None I k+ r' I pedestrian ways in the I Jetty Clark I i I I I greenbelt in the Bikeway I I Pedestrian Access Plan. I i I I I I I I I I I I I 1 ' 16. Include a flood plain I Karen Feshari IWlnter 911 Nohe I zoning district into the 1 i 1 I I new zoning ordinance. I I I 1 I 1 7. Examine regulatory, tech- (Prank Robbins (winter 911 I I I n I niquee, intensity policy I I 1 1 I I S I I 1` and incentive mechanisms, i 1 I I I to include transfer of I I I 1 1 t' { development rights i I I 1 ( { to encourage the use of I I 1 I I I } I the 100-year flood plain I 1 I r I for flood damage preven- tion, recreational and I I I I I ' 1 1 ! I open space purposes, and ! I I I water quality protection { I I I I El ' 1 I 1 I t I purposes. 1 1 ! I I I ' { A. Develop a policy about (Steve Brinkman (Feb. 1992E i I I the city acceptance of ! I I 1 ( ( greenbelt parks and city I I ! I I I<'' { acceptance of maintenance I I I I 1 I 1 t l s { responsibility. I 1 I IJ, i i 1 T p 1 I J[ a, 4 11 1. 'yi ti ► NMI ~ page 3 of Date: March 28, 1991 CITY COUNCIL STRATEGIC ISSUE GREENBELT Bob Tickner Howard Martin Karen Feshari Frank IMPLEMENTATION TEAM: Jerry Clarkns Bill Angelo Steve Brinkman Owen Yost ntity the environment, water quality and water quat limit flood damages limit public drainage n as crater maximize recreation opportunities; and beautify Denton by Protecting the 100-year flood d plain Goal Statement: Protect the Denton Greenbelt. ( I I I IMPACT ON BUDGET AND/. ASSIGNED TO (NEEDED BYI ACCOMP- I RESULTS OR CURRENT ACTIVITIES ..1~ i OBJECTIVE/TASK i I I LISH£D 1 1 I i I ! 1 13 1 I 9. Analyze the fiscal impact (Bill Angelo (Feb. 19921 of greenbelt operation I j and maintenance with I I I ~i respect to open space, 1 I I I parko and drainage uses. I I i` I I I ! I I ! 110. Develop a Civic Center (Jerry Clark 1994 j park water attraction 1 I 1 I I~ Plan st w ` 2375k/29 VSO R , 1 nI QII] i~ M`` J R f, J i i t Mry' Y 1 5 ll s MME 6, _ I ! y 1Y 1 , ,.•I a . ' 1 'b Mal T 'r j i 1Ve • I f y~ ATTACHMENT 3 t' GREENBELTS FOR DENTON A RESOURCE HOOK 4 l l v Page A Theoretical Framework 1 ; ; r I S''f - Current Policy Framework 2 i - Current Local Regulatory Framework 13 - Flood Insurance Rate Map (excerpt) 15 A Bibliography 16 4,, IN r f .4 a P r ! ~Y I I z• J yJ Y 1 '1 / rl~ 1I } 231Sk l 1 nr s....-..... n. ~.,nv .a, we'»w: AO.tlarv ♦rarn N. 4'u.4~W. a`b.Wlwi 4mavwna-., ' I'' i ~ ~ i AT, GREENBELTS FOR DENTON A Theoretical Framework The flood plain is at once our most sensitive environmental area and our richest environmental resource. j We need nature as much in the city as in the countryside. In order to endure we must maintain the bounty of that great cornucopia which is our inheritance. It is clear that we must look deep to the values which we hold. These must be a transformed if we are to reap the bounty and create that fine visage for the home of the brave r and the land of the free. We need, not only a better view of man and nature, but a working method by which the least of us can ensure that the product of his works is not more despoliation. It is not a choice of either the city or the countrysides both are essential, but today it is nature beleaguered in the country, too scarce In { the city which has become precious. There is a: need for simple regulations, which ensure that society protects the values of natural processes G and is itself protected. Conceivably such lands =#r wherein exist these intrinsic values and constraints would provide the source of open space for metropolitan areas. If so, they would satisfy a double purposel ensuring the operation of vital natural processes and employing lands unsuited to development in ways that would leave' them unharmed by these often violent processes. Presumably, too, development would occur in areas that were intrinsically suitable, where dangers were absent and natural processes unharmed. The formulation of these regulations requires no j new sciences we need move no nearer to the. threshold of knowledge than the late 19th century. We can initially describe the major natural processes and their interactions and thereafter establish the degree to which these are permissive or prohibitive to certain land i uses. This done, it will remain with the government and the courts to ensure our protection through the proper exercise of police power. Ian McHarg Design With Nature, 1971 A, IT" Page 1 i Man and beast have always been attracted to our water sources. Our oldest archeological sites are along old river banks. It is quite literally a life giving place. In the past, man has, in being drawn to this place, unwisely used it to his peril. The result among other things has been the loss of open space experience options for city dwellers, loss of life and property from flooding, water pollution, loss of wildlife habitat and species, and soil erosion. In other words, we have tended to degrade the resources within the flood plain which are inherently attractive and vitally useful to us. i In the last 50 to 60 years and particularly in the last 30 - years, there has been a growing recognition of the importance of the flood plain's resources. Communities have acted more wisely based on the knowledge of the natural forces at work. Some of the most obvious results of this recognition have been the increased use of 404 permitting under the Rivers and 01 Harbors Act, the Clean Water Act, the federal flood insurance program, and increasing interest in linear park-greenbelt planning at the federal, state and local level. This trend is evident in Denton and in the Metroplex region. Some of the most relevant regional work by federal, regional F and local entities is referenced in the bibliography. 'u Regulatory prohibition of development is an important tool in k preserving and enhancing our natural resources. It is not the r1 only tool we have or should use to maximize the benefits intrinsically held within the flood plain. An effective strategy for preserving and enhancing our flood plain resources would include 1) regulatory incentives for preservation, 2) education or conveying our goals and information about the flood plain, greenbelts, flood plain, parks, flooding dangers, i and iollution from urban storm water runoff, 3) a publc/PZivate partnership designed to acquire and make appropriate use of greenbelts within the flood plain, and 4) a fiscally sensitive program for public development of parks and greenbelts within the flood plain. Much of this strategy has been adopted in city policy and regulation. Current Policy Pramework 1. Flood Damage Prevention Ordinance and Subdivision and Land Development Regulations. I •It is the purpose (of the City of Denton) to promote the public health, safety and general welfare and to minimize public and private losses due to flood conditions in specific areas by provisions designed for Protect human life, property, and healthy Page 2 i a f Minimize expenditure of public money for costly flood control projects minimize the need for rescue and relief efforts associated with flooding and generally undertaken at the expense of the general public; Minimize prolonged business interruptions; Minimize damage to public facilities and utilities such ;Y as water and gas mains, electric, telephone and sewer lines, streets and bridges located in flood plain; r Help maintain a stable tax base by providing for the sound use and development of floodprone areas in such a manner as to minimize future flood blight areas; and, .i` Insure the'potential buyers are notified that property is in a flood area. To minimize the need for rescue and relief efforts associated with flooding and generally undertaken at the expense of the general public; To retain natural flood plains in a condition that minimizes interference with flood water conveyance, flood water storage, aquatic and terrestrial ecosystems, and ground and surface waters { To minimize erosion and sedimentation problems and I ' enhance water quality; and To minimize future operational and maintenance expenses,' 2. Tree Preservation ordinance. 'Pro.viding for the preservation of larger native trees which provide a valuable amenity to the urban environment, and that once destroyed, can only be replaced after generations. Providing for shade, windbreaks, and the cooling of air, thereby reducing the requirements for air conditioning and heating and the utilization of scarce energy sources. Providing for the screening and buffering of residential I areas from the noise, glare, and visual effects of j nonresidential uses and generally providing breaks from j the monotony of urbanized development on the land. I 1 Page 3 Y Y r r ti o. n. t r. Ma t S t Providing for open space, reducing the effects of soil erosion, the conservation of water, and providing for ' more efficient drainage of land, thereby reducing the need for additional drainage facilities.' 3. The Denton Development Plan. o 'One of the major goals of the long range plan Is to accommodate planned growth to the year 2010. It is recognized that the spatial form and pattern of future ' growth will determine to a large extent, the quality of life for the citizens of Denton. The specific goals and objectives serve to provide the basis of the plan to shape the future of the City.' R o 'Improve the design, image and character of the city by F preserving existins vegetation and natural topography i and encouraging adequate landscaping in new developments.' o Moderate Center Honus, i 'The diversity policy of the Plan allows for intensity ^ bonuses for mixed land use developments that Include r public or nonprofit community type service facilities or uses, such as churches, schools, libraries, fire stations, police stations, parks, open speceso or e; governmental offices. To meet the requirements fora bonus, land for the community facility or use must be within the 60 acre designated area of a moderate activity center and cannot abut the outer boundary of the center. nA developer may qualify for a bonus by putting a community type facility or designating a land•use for a community facility at or close to the major intersection of the moderate node.,. The formula for calculating intensity bonuses shall be as follows: 1 Number of acresl x 3502 plus Number of acresl x 603 1 a Number of acres designed for governmental offices or community services and facilities I 2 • Intensity factor for moderate center . 3 * Intensity factor for low intensity area Yr Page 4 { r, I The intensity bonus can be used to extend the boundaries of the moderate center. For example, a 5 acre park shall earn a bonus of 2,050 intensity trips (5 x 350 + 5 x 60). If this is used to develop multi-family housing at 25 units per acre it will expand the center by (20050/2004) 10.25 acres. Units/acre multiplied by number of trips generated by land use, e.g., multi-family generates 8 trips per unit. The developer providing the community facility is the I it individual who receives the bonus and the bonus may be an increase in land or in. the intensity allowed for the developer's land.' .t r ~ I F I ` 0 Inten9ity Amendments• 1 'As stated in the Introduction to this chapter, 'A change in an intensity standard is considered a major decision of the City.' Incremental planning activities and/or ' decisions such as zoning and planning for utilities, drainage, transportation, and parks which can directly or indirectly change intensity should be reviewed to determine the impact on the intensity of the City. The review process consists of a study session by the Planning and zoning commission, a recommendation by the , Commission to the City Council, and council determination .J of the need for a change in the intensity. The Commission will review requests by petitioners, land owners and staff at study sessions set quatterly t Notice will be provided to the public. if a petitioner or land owner, does not wish to wait until a scheduled study session, the petitioner or land owner must prepare 'e a study containing the information below plus any information established as part of the procedures of the Planning and Zoning Commission. 1. Intensity analysis of all adjacent intensity areas, 2. Impact of proposal on boundaries of adjacent areas, 3. Effect of this proposal on the overall intensity { balance of the City. Intensity areas should be ) identified where intensity may be reduced (flood plain, parks, highways, etc,) to offset the 'r increase. A study may be necessary to justify the reduction using the same criteria for the original 1 l ` I Page 5 w i var~ proposal. Land use areas where intensity may be used to offset other land use areas are restricted to land uses in the specific planning area under review and cannot be land uses already accounted for in the intensity formula as outlined in the Technical Appendix to the Denton Development Plan (a separate document). An increase that would change the overall intensity of i the City should not be approved. l I The study should be submitted to the staff for I review. After the staff has reviewed the study, it will be submitted to the Commission. The Planning and toning Commission will then determine if a special i study session is in order. The focus of the Planning and Zoning Commission study will be on the intensity question and the impact of ; changing an area's intensity standard. Other planning y decisions will be considered separately from the ;y intensity question.' o Disproportionate Share Allocation Criteria j, 'If a specific request violates the general policy of I proportionate allocation, a determination should then` be made whether there are planning considerations that would warrant approval of a disproportionate allocation of intensity. The Planning and Zoning Commission and City Council should consider the C' following items, but are not limited to theme a, The location of the proposed development in reference to existing or proposed public f facilities, such as streets, water or sewer lines, and drainage facilities. In this regard, the City's Master Plan for public facilities should be considered. It may be found to be more desirable, for example, to allocate more trip generation intensity to a proposed development that is adjacent to, or would have convenient access to, existing or proposed major J thoroughfares, major water and sewer lines and drainage facilities. bs The topography of the land in the planning area and the proposed developments There may be reason to allocate less trip generation intensity for a specific property that would otherwise require major modification of natural drainage areas, the removal of large masses of E trees, the leveling of hills, and other major topographical modifications to develops I s' Page 6 - - -_r.-r w.--'-rte S s C. The land use in the planning area and surrounding areas. The proposal should be \ reviewed to determine the compatibility with existing and potential land uses in the area and surrounding area. d. The allocation of trip generation intensity in reference to other policies of the Plan, such as, the protection of older neighborhoods and - single family housings diversity of housings and the concentration of apartments and office/retail sites. , If the City Council or the Planning and zoning Commission wants to raise the intensity standard for a low or moderate area, the Planning and zoning e~ Commission and City Council should conduct a special study session, focusing on the intensity question and the impact of changing the intensity standard. The study Process shall be determined by the he specific , t Commission or Council, but the study must examine intensity allocation for the city as a whole and how that level will be maintained. However, if the standard is increased, this action does not mean automatic approval of an individual proposal'. o 'CHAPTER IYt SPECIFIC AREA POLICIES 1 A. Designation of a Specific Area Specific area policies are intended to provide a framework to promote development in a designated area E which requires special treatment in view of its current problems or its unique location and t character. Specific areas may be designated by the y 'City Council on the recommendation of the planning and Zoning Commission at any time over the plan period. In designating a specific area consideration shall be given to any of the following. 1, An area which has a demonstrated need for special protection, preservation or conservations includes but not limited to residential neighborhoods, historic landmarks, sites of valuable architectural heritage, sites related to the conservation of natural resources. 2. An area with a prominent location in the City which needs special treatment for urban design and beautification such as entrance ways and the downtown area. j I ~ , III Page 7 i t. ravaar I 3. An area which has a special problem relating but not limited to traffic, noise, pollution, utilities, 4. An area which require special policies in order to accelerate its development in accordance with I, this plan. - specific area designation shall not be applied in the Following circumstances. a. To cover an individual property or group of properties so as to confer special benefits to the owners without substantial benefits to the 4` t City as a whole, b. To violate the intensity area policies. c, To conflict with any of the long or short term objectives and policies of the Denton 4 Development Plan or other master plans of the City' w o 18. Greenbelt/Linear Parks The policy of the plan is that maximum utilization of flood plain areas for parks and open spaces should be encouraged. The general concept is that there should j be a continuous belt of open spaces and park land with adequate landscaping so as to provide facilities for organized ames b a g ~ picnics, 11 fields bike WAY s► hiking, jogging, and pedestrian trails, Their general, ' purpose and uses should include but not be limited to the followings I 1) Provide natural corridors to connect major sections of the city with continuous belts of park land, " ~f 2) Preserve natural vegetation and the topography. 3) Provide a wide range of recreation Mad leisure facilities, including, open space for games and C { picnics, and biking# hiking and jogging trails as part of the Parks and Recreation master plan. 4) The following locations are recommended: a) Areas along Pecan Creek east of Woodrow, Lane to Lake Lewisville. I . { I' r , Pa 8 . .n.. r.. .mow.......... ,S}N r~ ti.M.flNt~ i t l b) Areas along Hickory Creek from the municipal Airport to Lake Lewisville. c) Areas in the north and northeast along Milam Creek and Clear Creek including adjacent areas to the Elm Pork Trinity River. d) Linear parks outside the flood plains interconnecting activity areas with park and open spaces along Carroll Boulevard. e) Areas along Pletcher Creek from Long Ridge; to Hickory Creek.' o School/Park Sites a, 'Neighborhood parks and greenbelt parks are to be integrated whenever possible with a school site, enabling the sharing of public facilities such as playgrounds equipment, play arras, parking area, and open spaces.' o Acquisition of Land for Parks and Public Open Spaces 'Developers may be required to participate in the provision of parkland to meet needs in accordance with the City of ; Denton Parks and Recreation Master Plan. In some cases 1. this participation may require the payment of fees in lieu of land.` The Parke and Recreation Master Plan should clearly identify potential sites for park land, assisting a developer in determining the location and size of the site.' o Greenbelt Park ' 'The flood plain areas along Hickory Creek are to be developed into a linear greenbelt park. The location and ; layout of the park will be determined by the Master Plan for Parks and Recreation.' 1. i 1375k .a ,A Page 5 j CITY OF DENTON PARK DONATION POLICY l Background I To provide for the need for parks created by new residential ! development, the City of Denton has considered the adoption of an ordinance requiring the dedication of land, or fees in lieu of land, to provide for the acquisition and improvement of park sites. In response to the proposed ordinance, the development community has requested that the City adopt on a trial basis, a park dedication policy in lieu of a mandatory park dedication ordinance, in a cooperative attempt to provide for park sites and improvements on a voluntary basis. Application of Policy This policy, developed in cooperation with the development , community, is intended to provide equitable guidelines to bee used by persons developing residential properties within the City of Denton and its extraterritorial juriediction for the , purpose of encouraging participation in a cooperative effort to provide for the parks or improvement of parks which will be needed to serve those developments. This policy is intended to be a voluntary program. Compliance or non-compliance with its guidelines by any person shall not be used by the City Council, the Planning and Zoning Commission, or any other commission, i official, or employee of the City in considering an application 1 or request involving a zoning matter, the approval of a plat, a building permit, or any other application or request which requires the approval of the city council, a board or commission, official, or employee. Polic i A. Donations of Land 1. A lication and Amount. Donations of land should be Made by any res ent a1 development which contains 500 or more dwelling units. The donation should be in the amount of no less than one acre for each ~ 100 dwelling units. 2. Land Characteristics. The land to be donated should be se ec e in consultation with the Varks and Recreation Department, Consideration should be given to locating park sites adjacent to school sites, whenever possible. Whenever linear parks are to be provided, they should be located around natural drainage and wooded areas to provide for multiple uses. For neighborhood parks, the land should be sufficient in size and shape to accommodate, on land located outside Page 10 S L the 100-year flood plain, the following usess two (2) tennis course, twelve (12) parking spaces, a picnic building, a basketball court, a playground area, and other facilities specified in the Park Master Plan for that area. Areas to be used for soccer and baseball fields may be located within the 100-year flood plain when the topography is otherwise suitable for those uses. 3. Park Site Im rovements. When the land to be donated is cont guous to a eve opment, the developer should bear w the cost of platting the site, providing public streets, driveways, and water and sewer service to the site. The City will bear the costs of all necessary streets, water and sewer lines and storm drainage improvements within the boundaries of the donated land which are necessary to make the park site usable. 4. Manner of Donation. The land should be donated by e cat on on t -final plat of the development. B. Fees in Lieu of Land, t 1. Application and Amount. A fee should be paid in lieu 'dY donating an for any residential development containing less than $00 dwelling units. The fee should be in a minimum amount equal to one-fourth (1/4) of one per cent, (11) of the construction value of the } dwelling, as identified on the building permit. 2. Pa ment of Fees. The fees should be paid to the City at a me a building permit is issued. The fees collected by the City shall be paid into an interest bearing park trust fund account maintained by a local Ir bank for the benefit of the City. The trust account shall be subject to the terms of this policy and shall be paid to the City, upon request, at the time the funds are to be used for the purposes provided herein. 3. Use of Funds. All park fees collected must be used to purchase iand for parks or to improve existing parks within the park planning area of the residential development for which it was received. C. Combination of Lend and Fees. Where it would be advantageous to the City an the development, the developer may make and the City may accept a donation of land, combined with the payment of fees, to satisfy the requirements of this policy. Page 11 t, ,s fff4 D. Return of Donated Land Of Feee. i 1. Land. if the land dedicated by plat for park purposes Ts not accepted by the City within ten (10) years from the data of dedication, the developer may revoke the dedication. ;w Y. 2. Fees, if the fees paid into the park trust fund are not paid to the City for park purposes as provided herein within ten (10) years of the date of payment to the park trust fund, the trustee shall, upon the request of the person making the payment, return the funds to that person, a I Y IW 1 4 to ~ r:. Y J ry •A r " 4 rb is , 4~•~. r a',. 1 5 `Nr~ R~/fit 4 . 237Sk Page 12 xr a- A -1 r r t Current Local Regulatory Framework r 1. Article 4.15, Appendix A, Code of Ordinances. Subdivision and Land Development Regulations. - Regulates subdivision and land development within the City's extraterritorial jurisdiction and City limits. I Prohibits development which would create or be a flood hazard. Generally requires that floodways of large drainage basins (one square mile or larger) be left in their natural state and be dedicated as drainage easements. - Encourages preservation of the flood plain. - Requires erosion control. 'I Establishes a framework for development to occur in accordance with regional drainage plans and be consistent with regional detention plans. t Requires prior a proval of the Federal Emergency, Management Administration (FEMA) and the Corps of Engineers, as applicable, for Eloodway modification before City development approval could be consideres. 2. Chapter 10.1/2, Code of Ordinances. Flood Damage Preventions. - Includes regulations and a permit process that controls development within adopted flood hazards areas. The federal government provides heavily subsidized flood insurance for citizens in Denton in return for city monitoring and regulation of development within designated flood szard areas. This regulation enables Denton to participate in the federal flood insurance program by prohibiting flood hazardous building and flood plain filling. Requires residential substantial development or improvement base floors to be elevated above the 100 year flood elevation by 18 inches. Requires non-residential substantial development or improvement base floors to be flood proofed or be k 18 inches above the 100 year flood height. - Requires surveyor of base floor elevations and engineer certification of flood proofing. ,r I. I 237A Page 13 X116; L:k. •.n - r 1 x r'' f I j 3. Appendix Co Code of ordinances, Tree Preservation, Landscape, and Screening Requirements and Regulations. Regulates clear cutting and the cutting of trees 10 inches in diameter or larger. Appendix B* Code of ordinances. - The Zoning Ordinance. i 'The zoning regulations and districts as herein established have been made in accordance with a comprehensive plan for the purpose of promoting the health, safety, morals, and general welfare of the city. They have been designed to lessen the congestion in the streeta$ to secure safety from fire, panic and other dangerai to provide adequate light and;airt to r prevent the overgrowing of land, to void undue concentration of population) to facilitate the adequate provision of transportation, water, sewerage, schools, , parks and other public requirements. They have been made with reasonable consideration, among other things, for the character of the district and its peculiar suitability for the particular uses appecifiedi and with a view to conserving the value of buildings and encouraging the most appropriate use of land throughout the city consistent with a comprehensive plan,' a.~ d j is % T+s 231Sk I Page 14 i .f^' .11.1 MAl OTHER FLOOD AREAS LEGEND ZONE X ArNS of SOO Y-It flood; sre11 of I 1DO~Yfsr flood witA 31ene! dlDtbl SPECIAL FLOOD HAZARD AREAS INUNDATED of less then I foot of with dnlMap SYI00.Y[Alt FL000 3.111 1411 thin 1 sawn mile; And ZONEA No bueflood 11er4tlonsditermtoed, tress Orotuild by lertss from too. tole flood, 20NIAE eelfnooddrrulemdanmin4l. OTHER AREAS ZONE AN Flood dtoo,f or 1 10 d rent Iawellr trot of ZONE X AI d4termtnted to be cl $00• Fen40111 bate lease 041900111 dell 11, d• test flood plain, ZONE AO flood deenhf or 1 to 1 fret luu+111r [Met ZONE D Areu In whit![ flood Td=+rdd are now on doo;nd urnlnl: 41rnN denhf undotumined• drterlnlned. Far will of tltuvl4l hn flood Indlydaddp 0w doterlnlnu. Flood 841,11 y ' Is N muted from 100•rrul flood by ZONE AH loderal Food patectlen ryuem under Fi00dw1Y EOYnd4ry eanftwnlon; no bar ebr41ty Wod 1.1ro r , tom,' ZONEV Coital Food w1th rded narvw41e fC 1 4cdanl; ne bw need 0el4110n/ drift. 1 minfd. .(s ~ A ZONE VE Canted Food whh rdeclty baud Iw4rf ! 4nianL' bee Food elattlonf detumined. 'N% • fir. r I 1 r'; FLOODWAY AREAS IN ZONE At LIMIT OF DETAILED STUDY RM ZL~JJ.~ tA- _rryr~ (~~/~`♦\v i AF r~r; ~L ' triter t ZONE X ! r ILd~e \C n« ~-_7•` S~3t7 _~r~~ r ZDNE X 1 Y t l 21 c•. r, i ZONES l[$104 0000 RM 2V 1 f• ' t 17 AM 2 4 or4i~r A j t' ZONE x to ONEA- ZONE 64f c°DEPTiI'1) ro/~ `rJei! r..r For ra w 1t: 1 N 0 6 ta'+ o'f 3.V e ORR , r r JO NE ~a32 I M rd RM 3o I J6 .1104 4 1 0 NE X :0F 1 d, ZO E X 6J y I ~ Ire h10M ~ ° r 1 ~•"'v ,,911 y\1 a r fay 09 ' CJ 1 d:A s Z araJ a ml ',i 410 i f t~ltlf 4 i NATIONAL FLOOD INSURANCE 1119CAAM told l ; '•Ilarr✓.r4er 3rattr .,.11 NO A 4'~I I 10 'I~ 1~ 4rtlrbdd_ ~'~-tlh~ d 'F_ p FIRM URANCE RATE MAP FLOOD IN , J./~ try I QAry' ~ CITY OF DENTONP TEXAS Page DENTON COUNTY 15 } . ■ ry'a M I 4 3 A Greenbelt Bibliography { 1. American Planning Association. Performance Controls for f Sensitive Lands. 19756 1 2. American Society of Planning officials. Regulations for Flood Plains. 1972. S. ASCE, NAHB, ULI. Residential Storm Mater Management, f ~ i by ULI. 1979. i 4. Burke, David G., et al. Protectin Non-Tidal Wetlands. PAS 412, 413. APA, Chicago. December 1938. S. Freese and Nichols, inc. "Hickory Creek Watershed j r, Flood Control Study:" November 1999. rr , r, 6. Gold Seymour, M. Recreational Planning and Design. i • ~ rf 1980. l`. 7. Henderson, Harold. "Open Space: Haw to Get It and Keep It," Planning Magazine. November 1990. p. 4. er 1ry.)e Irv 8. Institute of Applied Sciences, University of North Texas . "Ray Roberts Lake, Pre-Iapoundment Environmental ` Study." May 1988. 9. National Conference of State Le isleturos, Karen Hansen, ed. Wetland Irotection and the States. Washington, D.C. Apr . r 10. National Park Service, Rivers, and Trails Conservation Assistance. Economic Impacts of Protecting Rivers, Trails and Greenwa corridors, esource Took. on. 11. Roesner, Larry and Robert Mathews. "Stormwater Management For the 1990's." American City and County February 1990. pp. 44.54. 12. Salvesen David. Wetlands,. Mitigating and Regulatina Development Impacts. ULI, Washington, D.C*0 jLyvu is, U. S. Ar■y Corps of Engineers. Fort Worth District. Greenbelt Corridor Between Ray Roberts Die and Lake ew sv_ e a e. MAY 1935, 14. U. S. Army Corps of En sneers, Fort Worth District. Final Regional Environmental Impact Statement Trinity Inver an r u ar es. 1937o j .f Page 16 237Sk i du F 77 PW."L ~ E I ' ' s 15. U. S. Army Corps of Engineers, Fort Worth District. a f Ray Roberts Lake Recreation Facilities. i ep em er 16. U. S. Army Corps of Engineers, Fort Worth District. ; Reconnaissance R4 port. U er trinit River Basin -199 o ums Main spot Marc ! , 17. U. S. Department of the Interior, Fish and Wildlife 14 w Fr'. service, Fort Worth Field office, Ecological Services , Urban Develo ment and Fish and Wildlife Habitat of e a as or or a cop ex. .1939, All r. I ,1 j r t. • d ` r , n r > i i wr i , 1. 7A 1J Ci } ,yam ' 1Y'trl of Y A L t .l ''•del 2375k Page 17 a f 1 kY { MEMO #91-028 TO: Mr. R. Svehla, Deputy City Manager FROM: J. L. Cook, Jr., Fire Chief /1v DATE: 6 April, 1991 RE: Proposed Automatic Five Sprinkler Ordnance I " During the four years that I have served as Fire Chief for the City of ~ Denton, I have been laboring to upgrade our equipment and personnel, ' During the decade from 1980 to 1990, the City experienced substantial growth in both population and land area. The demand for Fire and EMS services also experienced a substantial increase. However, the number of personnel J employed by the Department has not increased since 1980. This has resulted 4 In a deficiency of approximately 33 percent in fire suppression personnel. Ac- cording to ISO standards, we need to employ an additional 40 fire fighters. Realizing the prohibitive costs of such a move in light of our current economic conditions, the staff of the Department examined a number of alter- natives to the traditional methodology of service delivery. Approximately 75 j percent of our service demand is for EMS. An additional twenty percent of our demand is for fire incidents which normally only require a single engine 1 company. The remaining five percent of our calls are for structural fires which require the response of several fire comPsetae. ' . Unfortunately it is - this five percent which accounts for 99 ' us with our greatest challenge. Percent of our fire lose and presents Upon closer examination of our structures, it was revealed that 92.4 per- cent of our 31,396 are residential in character. Only 7.6 percent is non- residential. Our first alarm assignment of fourteen fire fighters can effec- tively deliver 600 gpm which is adequate for most one and two-family dwell- ings. Our problem is with strictures of combustible construction of greater than 6,000 square feet and noncombustible construction of greater than 10,000 square feet. A 10,000 square foot building of noncombustible construction without sprinklers requires a fire flow of 2,700 gpm. A fire in a building of ' this size would require a minimum of 33 fire fighters on hoselinea plus addi- tional support p ` flow demnbye60XnneTo low 1 50 sprinkler system would decrease the required lire hoselines, plus additional support gpm would only require 16 personnel on personnel. Therefore, we presented an alternative which would allow us to increase on-duty manning to address our normal levels of medical calla and would allow us to cope with two simultaneous single-family dwelling fires. This would re- quire an Additional 17 personnel, rather than 40 required by ISO standards. To compensate for the difference, we proposed the enactment of a mandatory sprinkler ordinance. This would require that the person creating a hazard that was beyond our capability would be required to mitigate the hazard. The senior management staff of the city concurred with the proposal, as did the Council upon initial hearing. We were instructed to proceed with the prepare- Hon of an automatic fire sprinkler ordinance. Figure One, below contains an incomplete chronology of the process that has brought us to this point in J time. h O:I i, i ~ F • wsf F, 3 1 I i Figure 1 l Chronology of Events Relating to the Sprinkler Ordinance y. Date' Event: t ' 1 Feb., 1987 John Leo Cook, Jr. becomes Fire Chief r t 1 Mar., 1987 Denton Record-Chronicle publishes article by ; Jack Deleporte expressing opposition to residential fire sprinklers and my letter to the editor shortly thereafter. This results in an invitation to speak t 4, to the home builders, etc. about sprinklers. 3 June, 1987 DFD Five Year plan forwarded to R. Svehla outlining needs for fire stations, new apparatus, apparatus re- 45ty placements, and proposed code changes. 18 Dec., 1987 Staffing study submitted to R. Svehla outlining manpower requirements and reduced fire flows due to sprinkler' ! installation. q 1X ~tt 13 Au¢'ast, 1988 Original ordinance completed by Legal Department, this Is followed by a series of meetings discussing various issues which met with opposition such as retro-fitting f, high-rise buildings, etc. 3 March, 1989 Request sent to Legal to make agreed upon changes in the proposed ordinance. 17 May, 1989 Legal Reviews proposed supplemental rules. 25 August, 1989 Legal responds to a request of 5 July, 1989 for a Fire Code Appeal Board, i 16 Nov., 1989 Met with seven members of Governmental Relations Committee of the Chamber. t: t' 22 Nov., 1989 Responded to Chamber incorporating several of the proposed changes from the 16 Nov., 1989 meeting. ' 18 Jan., 1990 Responded to additional changes requested by the f Chamber, Memo #90-05. 16 Feb., 1990 Met with 19 members of the Governmental Relations Committee of the Chamber, 16 Feb., 1990 Met with six Directors and Executive Directors I concerning impact of proposed ordinance of City; owned buildings, e.g. Librarles. 2 a;k , I ' l5 y Ah I 29 May, 1990 Received list of questions and comments from a Teak a Force Committee from Governmental Relations Committee of the Chembk;,+ 13 June, 1990 Memo $90-32 reflectfd changes in ordinance and the work of L. Allison and Dave Hamm in resolving issues j concerning fire flow ar,d infrastructure. j 23 August, 1990 Met with the Building Code Board. 6 Sept. 1990 Responded to Chamber's Letter of 6 August, 1990 and !i , u attempted to address their concerns. , 1 Oct., 1990 Met with Chamber Committee, the City Manager responded F to their concerns on 6 Oct., 1990 and again ou 22 Oct. 4 30 Oct., 1990 Memo #90-72 responded to Chamber's proposed ; i substitutions in ordinance. 20 Nov., 1990 Letter from J. Cott expresses Chamber's opposition to ordinance as written. . ° 30 Nov., 1990 The Mayor intervenes and suggests meeting for 6 Dec. l ; 6 Dec., 1990 The Mayor hosts meeting to discuss issues. 14 Dec., 1990 L. Harrell summarizes information questions, the , i philosophical questions, and the code questions raised by the meeting of 6 Dec. & staff prepares a position paper on same, 15 Jan., 1991 Me tiingg held in response to position paper, mods ited b 26 Jan., 101 Met again and began to make progress with additional ` subcommittee meetings on 31 Jan. and 7 Feb., 1991 in which the final draft was developed with the proposed ; trade-offs; draft was sent to subcommittee on 19 Feb.; to Legal on 22 Mart a, with suggested wording changes by J. Doyle, w I 21 March, 1991 Building Code Board Reviewed Ordinance with some minor corrections suggested. We also adopted a philosophy which incorporates a belief that the current A"'.4 standards within the fire service industry are inappropriate and too expensive #4f for the City of Denton to meet. For example, traditional ladder trucks are now costing over 1/2 million dollars a year, According to the lradition.,sl stan- dards, we would need two ladder trucks. One million dollars would buy slot of sprinklers, We believe that the money would be better spent on sprinklers. dry,' 3 K ~r t ' 1 f r., 41i 11 H.. . I` i 1" , poll f } • t 1 1. I Several recent fires within the community have proven the value of automatic fire sprinklers. We believe that sprinklers are the most effective i form of fire protection. Sprinklers are 96% effective in containing or extin- guishing fires and they also save lives. when combined with woll trained fire t ; fighters and a sound program of fire prevention and public education, the fire r losses will be held in check and the taxpayer will receive the biggest bang E. buck, In the absence of fire sprinklers and effective education and r ,j for his i b~ more effi- . enforcement, thore is no guarantee that the department would or effective in its fire suppression efforts simply because it employed cient the 40 additional personnel. Our program is a balanced one that has included i Substantive input by city staff members and participants from the Chamber. S + Special recognition and thanks is due to Jerry Cott, Russell Hates, Wayne Allen, Barbara Russell, David Bites, Fred Gossett, and Chuck Carpenter of the y ,fir Chamber. Special thanks to the following personnel from the City: Mayor Castleberry, Lloyd Harrell, Frank Robbins, Hick Svehla, Jackie Doyle, Debra , Drayovitch, Betty McKean, and Bob Hagemann. u I appreciate your patience and cooperation irr this matter and remain available to answer any questions that you might have, ~ .fir r KEY POINTS OF THE PROPOSED Pt MtMTIC FIRE SPRINKLER ORDINANCE: J f # Sprinklers would be required in all new buildings if: # They are of combustible construction and exceeded % 6,000 square feet of floor area # They are of noncombustible construction and ex- coeded 10,000 square feet rF 1 # In all new basements regardless of bize, construction type, or occupancy, except single-family dwellings, i # In all new Group I (institutional) occupancies t Group H occupancies would not change from current VBC '01 requirements ' # Sprinklers would be required in all eeistinu buildings if: j e 1 # the additions caused the building to exceed 10,000 square feet and the additions were more than 26% of the building's ' original size on the date the ordinance passed: For example: A building that was originally 5,000 sq. ft, could enlarge to 9,999 sq. ft, or 60% and not be sprtnklered. A building that was originally 10,000 would f be required to sprinkler if it was enlargedt 7 r ~r 7. to more than 12,600 sq. ft. 1 , I i % r nr n Y ~ l ad', s r r r + 4 S1 , ` n, 1 t Art. 407 (e) of the Subdivision ordinance establishes fire flow , . requirements. The sprinkler ordinance would allow for fire flow ; reductions it buildings are equipped with sprinklers provided that a minimum of 500 gpm is provided. This was a maJor concern of the 1 Chamber. " t In order to provide economic incentives to builders, the following s trade-efts are allowed in Group As Divisions 3 & 4, Group B, and Group R occupancies when a building is eprinklered: S: t One hour fire-rated corridor construction is waived t Smoke and draft controls in corridors are eliminated t HVAO fire dampers in HVAC ducts in corridors are elminated ~x . t Wire glass in corridors is eliminated 1 t Flame spread rating in walls and ceilings is R increased to Class III n " t Exterior wails not less than 10 feet from a' d be of unprotected a. + j property lines may IJ- construction's t Fire lanes are modified to within 50 feet of? the FD connection L' p 4 '1r i l o i i fi ' 3 , 14 f 4`. Yr ` V3 p a .9"$ fj 1 f r r (:y~:urn r. w a c i r ♦f T. F APRIL 9o 1991 + CITY COUNCIL WORK SESSION t ` ' 11 141 TO$ MAYOR AND MEMBERS OF THE CITY COUNCIL ; FROMs Lloyd V. Harrell, City Manager SUBJECTS RECEIVE 1991 UTILITY DEPARTMENT FORECAST., tv RECOMMENDATION The Public Utilities Board, at their meeting Of March sR 27, 1991, accepted the 1991 Utility Department Forecast SUMMARY a The Utility Department Forecast for 1991 is enclosed, with the Agenda under separate cover for Counci).001 i i review and ecceptance. The Department's capital improvement plan and budget process begins and is based tlp U, : , . I on this document, k.4odc idly 4qu i Harrell, City Manager Pre red pproved bys . Ne son, Execrtive D rector Department of Utilities/Community ! Services vw .r . PUB327PC.016 ' pg.3 ° k " y 1 }N 71 t I I+ .t .q'r'.~r';wv,ua r....y,r w..~ r. I I. ek t I Excerpt Public Utilities Board Minutes 1 March 27, 1991 8. REVIEW AND CONSIDER ACCEPTANCE OF UTILITY DEPARTMENT 1991 FORECAST. After minimal discussion, Laney made a motion to k?~ ~s formally accept the 1991 Utility Department Forecast as submitted. Second by Ridens, All ayes, no nays, motion y v L"s carried. \ >T { j 4 , I ✓ I r e i a k. y n I1• 1 Y~'i IA i I ql~ I f. ;ry t d„ d ai fe.ti. Iris 71 i CITY OF DENTON MEMORANDUM DATE: April 9, 1991 T0: Mayor and City Council FROM: Lloyd V. Harrell, City Manager SUBJECT: CITY CHARTER REVIEW PROCESS 1 Several weeks back the City Council asked staff to prepare a summary paper on the city charter review process. Jesus has researched the City's files and provides three pieces of information. The first is a brief history of the last city charter amendment procesel the second is a summary of the legal , requirements that must guide the process# and third, is information on how several surrounding cities have handled the charter t+ amendment process. w 1980 C1 Y CHARTER =NDMENT PROCESS i'. 1980 was the last time an election was held to amend the City Charter. In May, 1979, the City Council created a Citizens Charter Advisory Committee by resolution (Attachment 1). The committee consisted of eleven (11) members, however the list we found contains only ten (10) names (Attachment II). On the basis of the resolution, each counoilmember, there wore five in 1980, had the authority to appoint two persons to the committee. The Council, as a whole, appointed the eleventh member to act as chairperson. Ordinance 79-86, adopted December Ill 1979, provided for the submission of proposed charter amendments to the voters at a r special municipal election. ZO amendments were proposed, Including changes in the number, selection and term of the City Council, ordinance 80-4, adopted January 22, 19800 canvassed the election returns, declared the results of the charter amendments election, and added the amendments to the charter. UaAL.GUIDELINES FOR THE CHARTER AMENDMENT PROCESS There are numerous legal requirements that the city must meet in # amending the city Charter. The following are the major guidelines t " that the city must follow in the amendment process. 6 i WWI, . Memo to Mayor and City Council City Charter Review Process April 9, 1991 Page 2. City Charter. Section 14.13 of the Charter, entitled "Amending the Cbarts Yr" states Amendments to this Charter may be framed and submitted to the voters of the city in the manner provided by Chapter 13, Title 28, of the Revised Civil Statutes of the State ar 0 of Texas, 1925, as now or hereafter amended. Chapter 13, Title 28, is now Chapter 91 "Roma-Kula Municipality," Local Government Code, Vernon 's Annotated Texas Statutes (as re- 4 codified over the years). Chapter 9 states that the home rule charters may ys amended by submitting any proposed amendment or ; . amendments to a vote of the qualified voters of the city. If the JI r. proposed amendment or amendments are approved by the majority of the qualified voters voting at the election, then they shall become a part of the Charter. Each amendment shall be submitted so that the voter may vote yes or no on any amendment or amendments without voting yes or no on all of the amendments. Proposed amendments shall be submitted for a vote when the governing body (City Council) desires to submit such amendments upon its motion, al upon receiving a petition signed by not less than five percent (5t) of the qualified voters in the City. The ordinance providing for the submission of amendment(s) shall also require an election to be held not less than thirty (30) days nor more than ninety (90) days after passage of the ordinance. it the next regular municipal election is be hat that old during this period the submission of the amendments shal The law also provides that no city charter shall be altered, amended or repealed oftener than every two years. Howaver, the failure of passage of any proposed amendment(s) does not prohibit another election for the purpose of voting on the proposed amendments within the two year period. The two year period starts when the charter has been officially amended or altered. The statutes do not prohibit the appointment of an advisory committee to study the Charter and make recommendations to the City Council for the purpose of amending the Charter, but the proposed amendment or amendments must be submitted by the Council or after . the requirements of the petition have been compiled with. n. j t a i I Msmo to Mayor and City Council City Charter Review Process April 9, 1991 Page 3. SURROUNDING CITIES RYRF.RIENCV WITH CHARTER REVIEW PROCESSES ' I T : City of Arlington The City of Arlington's last update was in August 1990. They try to update their charter every two years and keep a"running list of charter issues that surface during the two year period. A subcommittee of City Council members is formed to review issues and make recommendations to the full Council. The last review process took six weeks. City of Fort Worth Forth Worth last updated its charter in 1989. They are currently in the middle of a charter review process. In 1989 the City Council appointed a charter review committee composed of citizens and councilmembers. This time around the council has designated themselves as the review committee because of deadlines that must. be mat. The major issue is city council redistricting. City-has" 3 put together a citizens quids to the charter review process. Fort E Worth is planning on an August election. City of Carrollton + Carrollton last updated its charter in 1985, City council appointed a citizens committee, with each council member appointing one member. Committee worked independently of staff and reviewed. the entire charter, chapter by chapter. Recommendations vare presented to Council for approval. ' This information should give the council a good idea of what is involved. in the charter review process. Pleese let me know if there is anything else you would like for us te, do in this area, Prepared byi. e Nava, Jr. As stant to the Ci anager Approv bye ; ~1. L o V, Harrah City Manager d f . AT A REGULAR MEETING OF THE CITY COUNCIL OF TILE CITY OF DENTON, ATTACHMENT ! TEXAS, HILD IN THE MUNICIPAL BUILDINO OF SAID CITY ON THE 16TH DAY OF MAT, A. D. 1979, R E Q L U T; O N WHEREAS, the City Council of the City of Denton, Texas, desires to review the City Charter for the purpose of determining whether any amendments or revisions should be submitted to a vote of the citizens of Denton; and ' WMBREAS, at the Municipal Election bold on the 7th day of April, 3 19790 a majority of the citizens voted is favor of expanding the i ? Council from five to seven members and baying the Mayor elected by J the oiLissas; and i r•' t s WHEREAS, it would be appropriate to form a Citizen Advisory Com- mittee to study the Charter and make suggestions for proposed amends ' NOW, THEREFOR;, BI IT RESOVLED BY THE CITY COUNCIL OF THE CITY OF DENTON, TEXAS: ` ail, a That a Citizens Charter Advisory Committee is hereby created ` consisting of eleven (11) members appointed by the City Council to i. f, I serve for as indefinite term until such time is the City Council %x abolishes the Committee. Each Council member shall appoint two par- x sons to the Committee, and the Council, as a whole, shall appoint one member to serve as Chairman of the Committee. The Chairman shall p vote only in cases of tie votes by the Committee. Said Committee will review the present City Charter and assist the Council is deg termining whether any ameadments should be recommended and submitted to a vote of the citizens of Denton, The Committee will function at the direction of the Council and may develop such rules and regula- tions concerning their meetings as the Committee or Council No desires, PASSED AND APPROVED this the .1 day ay, A. D. 1979. „ , A A CiTY'OF DIIC'I'ON, TEXAS A l CITY Of DINTON, TEXAS APPROVED AS TO LEGAL FORM: ~ i I -F1UL-U-,nAAKj CITY ATTORNEY II t' CITY OF DENTON, TEXAS i owl t , ATTACHMENT It. I CITIZENS CHARTER ADVISORY COMMITTEE Mr. Larry Bailey 1304 Stuart Road Denton, Texas 76201 i ^Mr. Bill Utter 1915 Archer Trail Denton, Texas 16201 Mr. Bill Neu 2100 Southridge 4 1, Denton, Texas 76201 + Ai`~ i F 'f vt . Mr, Tom Jester 1 1101 Ridgecrest Denton, Texas 76201 Mr. Charles Burch + 2316 Georgetown + r Denton, Texas 76201 e Or Ray Stephens` 619 Ridgecrest` "r Denton, Texas 76201+ Ms. Charldean Newell 709 Mimosa ~r y r Denton, Texas 76201 Ms. Elsie Hampleman 1400 Kendol ph Denton, Texas 76201 ' Mr. E. 6i, Morrison, Jr. +2,, Morrison Milling Company 319 E. Prairie Denton, Texas 76201 Mr, Homer B1y 2100 Hollyhil) . F. Denton, Texas 76201 00 ` •i f ~ r• ilAl t ! .r L IA2 now, E i CITY OF DENTON MEMORANDUM i t • DATE, April 90 1991 TOs Mayor and City Council FROMs Lloyd V. Harrell, City Manager j I~ SU&7ECTt UNION PACIFIC RAILROAD PROPOSAL FOR THE LEASE OF RAILROAD RIGHT-OF-WAY FROM LAKE DALLAS TO DENTON City Council will remember that in December 1989, the city learned t,. that Dallas Area Rapid Transit (DART) had obtained a fifteen year r, option to purchase Union Pacific Railroad right-of-way from the Dallas county line to Lewisville, just north of Lake Dallas. At that time the City sent a City-Chamber delegation to request that DART include the remaining right-of-way, from Lake Dallas to Denton, in the option with Union Pacific. The City Council formalized the request by adopting Resolution No. 89-080, on E December 19, 1989, requesting DART to consider the protection of the rail line through a purchase option (Attachment I). The County of Denton also expressed an interest and adopted a similar County Resolution ' In August 1990, the City was notified that the Union Pacific would not grant DART a long-term option on the right-of-way and would instead petition the Interstate Commerce Commission (ICC) for abandonment of the rail line given the lack of feasible economic use and the deteriorated condition of the track. In anticipation of the abandonment, I had Jesus research the federal law governing the establishment of recreation and historic trails under the National Trails System (Title 16, United States Cods Service, 81247, (d) "Railroad right-of-way") The rails-to- trails public law was developed by Congress to encourage railroads that are abandoning rights-of-way to transfer them to state or local government agencies or organized trail groups for use as recreational hiking and biking trails. However, the intent of the law is to preserve existing linear right-of-way for potential reactivation as rail transportation corridors. Speoifically, the law states that "the secretary of Transportation, the Chairman of the ICC, and the Secretary of the io f r shall encourage state and local agencies and private Inter interests to establish appropriate trails An furtherance of the national policy to preserve established railroad right-of-way for future reactivation of rail service, to protect roil transportation corridors, and to encourage energy efficient transportation use". I 1 Memo to mayor and City Council Union Pacific Right-of-Way Proposal April 9, 1991 Page 2. Under the law, cities can request the donation, transfer, lease, 1 sale, or otherwise (in a manner consistent with National Trails System Act) of railroad right-of-way for recreational trails as an interim use subject to restoration or reconstruction for railroad purposes. The law also states that such interim use, as a recreational trail, is not to be considered an abandonment of the rights-of-way for railroad purposes, thereby nullifying any and all r i state laws holding that abandonment of railroad use means that all ° rights in the property revert back to the underlying fee owner. if a State, city or private group is prepared to assume full responsibility for management of such right-of-way, then the interstate Commerce Commission shall not permit abandonment or discontinuance of the use of the right-of-way in a manner that is inconsistent with the law. The ICC will also prevent any and all € underlying property owners that granted an easement for railroad a right-of-way to recoup their property by arguing that the easements r have evaporated. Equipped with this research we once again met with DART and Union Pacific to inform them that we would attempt to utilize Public Law 16 USC 51247(d) to acquire and preserve the railway corridor for the potential future reactivation of rail service, if they were unable to negotiate an option on the Union Pacific right-of-way, from Lake Dallas to Denton. i w As a result of the meeting the Union Pacific agreed to inform the ! city of their intentions to pursue abandonment and to allow the } City the opportunity to negotiate the acquisition and/or transfer of the right-of-way prior to submitting a petition to the ICC. On March 11, we received a letter from the Union Pacific outlining a proposal to the city for the lease of the right-of-way, "at a reasonable rate", for trail use. A copy of the letter is enclosed for your review (Attachment Ii.). ; We have convened an in-house task force to gather data and information relevant to the proposal and have requested additional 1 information from the Union Pacific, including what they mean by "r*asonable rate". Our plan is to evaluate the costa and benefits of the proposal, look at alternatives for usage of the right-of-way as a trail and information to you in develop and,based on paper. your We will present h ishes# preparea response for the union Pacific. ' i too .rya. . Memo to Mayor and City Council Union Pacific Right-of-Way Proposal April 9, 1991 Page 3. 1 I As a final note let me remind the City Council that our interest is in preserving the right-of-way is to maximize the prospects for future mass transportation along the IH 35E corridor. If commuter traffic increases to the point where rapid transit would Y' ' economically alleviate traffic congestion, then the City or DART could utilize the right-of-way as potential transportation alternative. f The right-of-way in question is approximately 15 miles long and parallels IH 35E. It crosses Loop 288 beneath the underpass, ` crosses Woodrow, just south of Shady Oaks and ends at the terminal east of Bell Avenue and south of McKinney. A map of the rail line ` is attached for your review (Attachment III). Please contact me if you desire additional information on the r~ subject or are interested in discussing the matter furthers, 'i Prepared bye { F y i A J t 2tW r' 7 J s Nava Jr. istant nt tot ity Manager Approved byt ~ ~ ry „X f L1 yd V. Harrell ' city manager :R ` 'V v r t'. i r r 1~t.; CY d n~ ' e 3 2872L ATTACHMENT I. RESOLUTION NO. A RESOLUTION REQUESTING THAT THE DALLAS AREA RAPID TRANSIT AUTHORITY (DART) CONSIDER THE PROTECTION OF THE FORMER MKT RAIL LINE, CURRENTLY OWNED BY THE UNION PACIFIC RAILROAD, FROM ITS EXISTING SERVICE AREA IN CARROLLTON AND CONTINUING ON T}'ROUGH TO THE CITY OF DENTON; AND PROVIDING FOR AN EFFECTIVE DATE. ; WHEREAS, by virtue of the decision of the Texas Railroad Commission on April 12, 1988 to formally include Denton in the ' Dallas/Fort Worth Intrastate Commercial Zone, this City may now be officially recognized as a part of the Dallas/Fort worth ' metropolitan area; and WHEREAS, commuter trends and economic conditions will con- tinue to require a closer relationship between the City of Denton and the Greater Dallas/Fort Worth area; and WHEREAS, the Dallas Area Rapid Transit Authority (DART) has executed an option to purchase and protect the right-of-way of the former MKT rail line, currently owned by the Union Pacific ° Railroad, from its existing service area in the City of Carrollton on through to the City of Lewisville; and WHEREAS the aforementioned rail line right-of-way extends on from the City' of Lewisville to McKinney Street in the City of Denton; and f WHEREAS, the City Council of the City of Denton acknowledges j the importance of protecting this right-of-way on through to the City of Denton for the purpose of helping to preserve future rapid transit alternatives into and from the Greater Dallas/Fort Worth Area in the future; NOW, THEREFORE, THE COUNCIL OF THE CITY OF DENTON HEREBY RESOLVES: SECTION I, That the City Council, together with the Denton Cham er o ommerce, does hereby respectfully request that the D allas Area Rapid Transit Authority consider acquiring an option for City ohf Lewisviil~nto ehi CitynofnDsntonic right-of•way from the ! SECTION II. That the City Secretary is hereby directed to forward a copy of this resolution to Marvin Lane* Chairman of the. Board of Directors for Dallas Area Rapid t'ransit Authority and Harry Hall, Chairman of the Board of Directors for the Denton I , Chamber of Commerce. r w s P i ATTACHMENT I. (CONT) SECTION III That this resolution shall become effective imme ate y uro`n its passage and approval. VASSED AND APPROVED this the J9 day of AaJ 1989. i ~ Attests JENNIFER WALTERS, CITY SECRETARY 1,R•; bill J11 1 yr. ' I APPROVED AS TO LEGAL FORM: ' DEBRA ADMI DRAYOVITCH, CITY ATTORNEY - q 'y •kI PAGE 2 L Hwy I r I I -7L .4v I !A 44-4, z p E~ ATTACIDENT It i UNION PACIFIC RAILROAD COMPANY MARKETING SERVICES tot! DODOS STREET OMAwI NElRAlMA M17! VK? ~y March 1, 1991 File: DYB Branch Denton Mr. Lloyd V. Harrell City Manager Municipal Building I ` Denton, TX 16201 Dear Mr. Harrell: This refers to our previous exchanges concerning your interest in preservation of a potential rail transit corridor ? y between Dallas and Denton for the future. We have given this subject a great deal of thought and have coneltaded th4t it would be highly unlikely that Denton would want to purchase this transportation corridor to you would be faced with a multi million dollar investment. on the other hand, abandonment by MP would permanently eliminate this as a route tot the future. In order to accommodate your wishes and at the same time liquidate the track structure, which is in such a condition as to be almost useless for future freight or passenger use, we would f propose the followings I. Missouri Pacific would file an out-of-service exemption with the iCC to abandon the Denton Subdivision between "N and H ,P. 721,53 . near Lake Dallas asDproximakel Y M.P730 ` near Denton. 2. Denton would request the ICC to issue a "CYTU" (Cartificato of Interim Trail Use) whereby Denton would ease the right•bf•way (for a reasonable rate) from MP ; for a trail, The CITU would retain YCC authority over _ i the ri ht•of-way and prevent the reversionary land from 1 revert ng to adjacent land owners. iF 3, Missouri Pacific would remove rail, ties and other it track materials, but leave any bridles or culverts in place. Denton would assume responsibility for, the right-of-way including maintenance, taxes and insurance. 4, if at any time in the future it became necessary to / restore rail Aervice, MP would cancel the lease And ' f I , t I . l . i t , { I 1 L ~ I 1 i ATTACHMENT III. (CONT.) ~l 1 negotiate a sale obtaining the transportation corridor value for its property. h any sale bynMPhfor event the Denton terminates would t have lease eberliable 1 for the cost to remove any bridges. While this plan does not require Denton to make a substantial cash outlay at this time, it does require the local community to take some responsibility for preserving its options j, for the future. Consequently, we believe the local entity should be the City or the County. , Although this is os!!.v a base outline, we would appreciate ; your reaction as quickly as Possible. It is our plan to file the abandonment within 90 days, and we believe it is possible to accomplish the necessary agreements within that time period. Any final agreement would be subject to approval of Missouri Pacific's senior management. f Please contact me at (402) 271-4791 if you wish to discuss this issue further. Very truly yours, } WARREN C. WILSON Manager Rail Lint Planning i` cc! Mr. Lonnie E. blaydes Asst. General Counsel Dallas Area Rapid Transit 601 pacific Avenue Dallas, Tx 75202 Art Albin y Union Pacific Railroad % Roos $)O, Omaha, N6 r Harold Brandt ' i Union Pacific Railroad Dallas, Tx Bob Stephan Union Pacific Railroad Ft, Worth, TX j j y I to r F 1.Ar 1 i A r T r~♦ r NfEM'~ . i ROSS RD ROADS fi 4t ~INNEY • ENTON a s - START OF LINE (DENTON) Ownerships Union Pacific Railroad Company Rail line: Missouri Pacific, Denton Subdivision (former MKT) O [O~DAKD G F MMO w[ur RD F 1 SHADY SH EDO w f 01 *A ' K V6H AD P. Ot,' usrr New IN N RD CRINK AD CORINTH p4 r ~ HICKQQO~Y L ' ARGYLE t NO g IAEM D Nil LN RD "I J! :',IYYYY p 1 AD OPPE F No ANY I' ,IN AL! to NNtr )RRAL IONLAND y 010 .ITY AGE TN IN f ~ .:k' ON tVAR ONVILL! F AD oA+!r D FLOWER MOUND Ar Ao LEWIBVILLE AD CARROLL ON r AO q r r ~ ' °4r . r; r 3 9 010 r~i. UIl1TL h OUIHLAKI _ _ r ` Ir nAr r At r%mr16rrv tArNrrr i 8L A' is _ _ _ . Y~~., 11'1.v~ i Mal . CITY OF DENTON FORECAST MUNICIPAL UTILITIES ELECTRIC, WATER, WASTEWATER, AND SOLID WASTE : i H+r v t Y~~k .r P 7 61, .w. _ y A V i JANUARY 1991 "IQ CITY OF DENTON MUNICIPAL UTILITY DEPARTMENT DENTON, TEXAS r ~ .t f " . a H*.:d'I 4C.kire- a4~~'~tk1.Y4Ad". MSrM~a _t• y Y j CITY OF DENTON MUNICIPAL UTILITIES FORECAST i i ! E EXECUT ~t~MMARY ; IVE i I { I j I. INTRODUCTION I • J ' The annual forecast is a presentation of the fundamental elements upon which the planning for utility system expansion, 1 to are based. This includes providing t. upgrade and improvemen P for the needed capital resources. i Cost of utility, In consideration of the increasing. service, concern for the environment, the high level of ~r^ r the customer, diminishing `.f A, dependability required by availability of quality raw materiels, etc., this forecast k r incorporates methods. intended to provide a more accurate ; a• r assessment of historical demands. This is accompi,ished bye , evaluating causative variables such as rainfall and " temperature. As rainfall incredsed, water use reredos. !J, Population is still the single most important variable, t, { r . '-1 Denton has experienced some relatively short periods Of .J high population growth. An annual pattern of changed in the growth rate has not boon established, Short terns trends in .I permits along with projections by the North Central building p CITY OF DENTON UTILMEa - ; b y 4y &I 4'• x« 'Q i f J Texas Council of Governments were used to project the population. For Denton the projected population ist "1\ t PERCENT YEAR POPULATION ANNUAL GROWTH r t' 4~ 1990 69,234 1.57 1995 73,341 1.14 :r a 2000 83j271 2.56 2005 94,729 2.61 i; 2010 107,782 2.61 •r 2015 122,661 2 61 ; r 2020 139,622 2.61 k '1 f k~ The use of causative variables in conjunction 00th population projections provides a basis for risk analysis.. n a where the available data was sufficient, each Camponent.of the, 10, utility demand was analyzed for extreme as well as? Hormel conditions, For example, water demand was analyzed for the ~3. effect of high rainfall years, normal rainfall years and low rainfall years. Risk analysis provides the staff with'data do what the risks actually are instead of simply planning for the worst case. i k CRY OF DENTON UTWTIE9 rft o 1! .t SL Wl... nn n.L ♦ ..ode •x - .e. ..n. 7".: . m.. .a..,. r. ..k wAa'.u`ea w. x.na e. ~ r. y1 i i' ' r Y " ~1 I 1 I II. ELECTRIC UTILITY Peak Demand System components are designed to accommodate the peak demands which only occur a few times per year. Efficiency can 4~ rj, be gained by having a uniform demand. Otherwise system y r components can be very large compared to the average demand. t 6 The projected average and peak demands and load factor for Denton area; II n I ~i ' W DEMANDS (MW) ` r ~ YEAR PEAK LOAD FACTOR r'f II n ~ I , y , k1 , a 1991 187 0.4999 1995 199 0.5054 ; s r., 2000 223 0.5123 M Denton's load factor is expected to continue to increase i., due to the success of the load management program. Electric Generation As Indicated in Figure 3.2, Denton is projected to y., require additional generation capacity by the year 2001 with no firm contract nales. Denton will need Additional generation capacity by the year 1995 with firm contract sales, Denton should begin now to work with TMPA to assure that k` generation capacity is provided in a timely manner. G7`y OF DENTON UTIUTIE9 i t " , ~Ir ~S . 1 w. w✓.r4,rtw rr, i.r....:r.. r.-^•. _ , Y r . i III. WATER UTILITY I Water Demand Denton's water demands vary substantially depending on tt4` rainfall. Denton's projected annual treated water demands expressed in million gallons per day are: DEMAND (MGD) YEAR NORMAL WET DROUGHT , tl Yy4 1991 11.38 9.70 13.75 ; 1995 11.99 10.22 14.48 2000 13.62 11.61 16.84 X~, 2005 15.49 13.21 18.71 n 2010 17.62 15.02 21.28 2015 20.06 17.10 24.22{ 2020 22.83 19.46 27.57 g, J y a 4 Water Supply The completion of Lake Ray Roberts has provided Denton with a water supply sufficient until the year 2014. However y r r; water supplies can take anywhere from ten to thirty years to locate, design and construct; forty years to not unheard of. Denton is curr6ntly pursuing some water supply from the Cooper ;.E Reservoir. This supply will only be available for fifty i years, Denton should be receptive to any opportunity to 'f obtain additional supplies. 6 •1p1. I I fa CITY OF DENT ON UTILITIES ~J 1,0 r r t,~a . ~ I~r ,oa. T,x r R Water Treatment Denton is designing a 10 MGD plant at Lake Ray Roberts to be completed in 1993. This should provide for Denton's normal demands until 2013. The Lake Ray Roberts plant can then be expanded in increments of 10 MGD to an ultimate capacity of 100 MGD. t Preparations are underway for the Upper Trinity Regional Water District (UTRWD) to participate in this plant by means Y j of joint ownership. Denton will benefit by making a smaller (5.1 MGD) more manageable expansion. Denton's customer cities, A Corinth and Lake Cities Municipal Utility Association (LCMUA) u' would terminate their agreements with Denton and become Members of the UTRWD. The combined needs of Denton and the UTRWD will ultimately determine the construction schedule for " this plant. Water Distribution Denton currently maintains approximately 295 miles of water distribution mains. About 50 percent of these are 6 1 4rti". inch diameter, and about 9 percent of these are less than 6 Inches in diameter. Consideration should be given to siring ;3 ^ N'. when constructing new lines or replacing existing lines. Parallel lines Increase the total length which increases maintenance requirements but does not serve more customers. Oversiting developer lines and designing for the projected IL: i rl : y CIIY OF DENTON UTILITIES at` , I i V a r v n I` 1 ' 1 Y~ ...>e,; d „Yb,n rY i ,..n rB t.. n. e'1 .+Yb.. r n• ~ VI owl twenty year demand are ways to help minimize the length of mains in the system. Storage Denton is planning for a 3 million gallon ground storage ; tank at the booster station on Hartlee Pis :d Road which is scheduled for completion in May of 1992. Another 4 million gallon storage tank will be needed by 2005. ;yy'' r . e ro ro Denton is also planning for 2.5 MO of elevated storage by I 1995. Currently there is not any elevated storage on the rtaA; Upper Plane, The creation of another pressure plane bAtween ~ Loop 288 and Lake Lewisville will necessitate anothor 1 MO ; ?*;r elevated storage by 2010 } IV. WASTEWATER UTILITY 1 J Treatment 7 t According to recently published Taxes Water Commitlelon :3 y,r criteria, Denton should have already begun construction of an " expansion. A 3 MOD expansion is planned for completion In 14 A .11A n 1992, Another 5 MOD expansion must be initiated in 1995 for ; completion by 1999. k<' CITY OF DENTON LMUMS Nv i r~ ~.,:nuk.wt.nc,:Niaa.t°Yr+. d,wel f>+ro Mr..•. e.:•..... , .t, n,Fs , j ' tom.. Influent Denton currently provides services ;o Corinth end is, ro acted flows ~ contracting to provide service to Argyle. Thep j for Denton (not including customer cities) are r 1 ANNUAL , YEAR FLOW (MGD) ; ? . rF 1 % 3 P;'r.; 1. , 9.28 3 s 1991 ry' 1995 9.7B kr 2000 11 10 i ~j . J 12 63 I 8? . ~o 2005 r*~ r 2010 14,37 ' 16.35 ~ ~ ~ 2015 i 18 ~ r. 2020 { ,y.(y~ I ti. collection System roximately 306 miles of r i Denton currently maintains app + sins. About 71 percent of:these Are 3 Yf4 gravity lines and force m 6 inch end B Inch diameter, Consideration should be g1V'en to sizing when constructing new linen or replacing ,existing t , i linos. Parallel lines increase the total length whlbh r Increases maintenance requirements but does not serve.~feoid Y r customers, Oversizing dt-veloper lines and designing for the k ~ r1 projected twenty year demand are ways to help minimize the ' A,, j length of mains in the system. F ~a s . Y a4; fse.~ ' CITY OF DENTON UTILMES q¢ u ! vii ~ ;d f_ nn~ ..,~..r,: wiw1K. "..l.d:l N^~L:~,nwr.t++w rv ~~r'Y 1,~. R1 ) r j ` ' 1 5 f ~ ~ r Ar }j s i .i t4 y r3 ~ ~i > i 1s.r i~ r44,~' I ~M } Infiltration/Inflow (I/I) Both the collection system and the wastew ter treatment plant are affected by i/I. Historical records indicate that Denton does experience a noticeable amount of I/I during and after a storm event. With 06M and treatment costs continuing i to rise and regulatory requirements becoming more stringent, Denton should engage in an I/I analysis in an effort to minimize the load on the system. s f _ v. SOLID WASTE UTILITY ~ c LANDFILL CAPACITY kk Denton currently handles both residential and commercial solid waste as well as solid waste which is privately r. delivered to the landfill. The City of Denton is currently evaluating the possibility of selling the commercial base$ The projected solid waste volumes considering selling or not y selling the commercial are as follows. ' WITHOUT SALE S,ITH SALE OF COMMERCIAL nF COMMERCIAL YEAR (CUBIC YARDS) (Cuss YARDS) 369 j034 1! 00788 li ~ i 1991 } 1995 4021001 206,084 r. 2000 472,874 2390957 I ry t c . At the current rate of receiving volumes the city of Denton has the landfill capacity to last until the summer of 1996. The effocts of recycling extend its life several CITY OF DENTON UTILITIES viii f r a c r7- 1 oil'i F. y ! months. If the City sells its commercial waste, it would after the year 1 wel extend the life of the landfill until til ti 2000. ~ r .i 'i t{t ra r , k ..q 4 a ~,w j CITY OF DENTON UTILITIES ix r i TABLE QE CONTENTS fi~ETIN1 INTPJDUCTION 1.1 Authorization 1-1 3 1.2 Objective 1-1 1.3 Scope 1-3 t , SECTION 2 i. METHODOLOGY y 2-l^ 2.1 Introduction 2.2 Variables 2-2 2.3 Normalization 2-13 2,4 Risk Analysis 2-14 E TIO ELECTRIC UTILITY 3.1 Introduction 3-1 i -J 3-2 3.2 Methodology 3-12 3.3 System Peak Load 3-21 3.4 Substation Loading 3-24 - 3.5 Summary of Results ,w i SECTION 4 4. ILITY 1~. WATER 1 4.1 Introduction 4-1 4.2 Water Supply 4`7 I 4.3 Water Treatment Plant 4-9 W 4.4 Water Distribution System 4-19 WASTEW UTILITY .J SEATERN 5.1 Introduction 5-1 5.2 Methodology 5-3 5.3 Wastewater collection 6yetem 5_3 5.4 Wastewater Treatment 5-11 r.' 515 Lift Stations 5.6 Other Considerations 5-13 t* F J P CITY OF DEWON UTILMES F 1 i11 'i agkl_ WEE TLITY_ Introduction 6-3 6.1 6-4 ~ 6.2 Methodology 6-4 6.3 Customers -10 6.4 Solid Waste Volumes b b.5 Landfill E i A-1 4 LIST gF REFE CES i i TE 8NI AL APPIx i ; ]il r r *}p r I 1 4 ; R. I I 1 CfTY Of DENTON UTIUTIE9 "a t 0"PI i i ( LIST OF TA E i SECTION 2 METHODOLOGY ' s ojected populations 2-4 i r P al 2-9 TABLE 2.1 Historic h Rate By Decade TABLE 2.2 Average Annual Grows TABLE 2,3 Historical Population Annual increase 2-10 In The 1980's { I SECTION ELECTE UTILITY , TABLE 3.1 Rate Class Energy Requirement in 3-3 ! Megawatt-Hours E w TABLE 3.2 Historical & Projected Average Monthly 3-5 Number of Customers 3-7 TABLE 3.3 Historical & Projected System Energy , Requirements TABLE 3.4 Historical & Projected System Peak 3-14 Load and Capacity in Megawatt with { 151 & 20% Reserve for 1989-2000 with ~I No Firm Contract Sales. 3-19 TABLE 3.5 Historical & Projected System Peak N Load and Capacity in Megawatt with 154 & 20% Reserve for 1999-2000 with i Firm Contract Sales. 3_20 r j TABLE 3.6 System Peak Forecast Comparison in Megawatts ` TABLE 3.7 Substation Historical & Projected Peak 3-23 Demand (MW) WATER V110Ty ! TABLE 4.1 o1storical & Projected Number of Water 4-3 customers 4.4 ~I TABLE 4.2 Historical & Projected Consumption by 1 General Rate Class. nth, i A 4-10 TABLE 4.3 Hcities of istorical D&nProjectedAnnual Raw Water Requirements TABLE 4.4 Cities of Dentono corinthr & LC14UA 4-15 a~ Historical & Projected Peak Day Requirements TABLE 4.5 Historical & Projected Customer Demand 4-21 by General Rate Class 4-23 # TABLE 4.6 Hater Main Side and Length l CITY OF DENTON UTILME8 1 l 4 .n : ..a TABLE 4.7 Ground Storage Requirements 4-26 TABLE 4.8 Elevated Storage Requirements 4-27 SECTION WASTEWATER UTILITY TABLE 5.1 Sanitary Sewer Size and Length 5-5 TABLE 5.2 Historical & Projected Average Annual 5-8 ` Wastewater Influent TABLE 5.3 Major Lift Stations 5-14 E E TI SOLID ATE UTILITY TABLE 6.1 Historical & Projected Residential 6-5 ; and Commercial Customers TABLE 6.2 Historical & Projected Landfill Solid 6-6 Waste Volumes TABLE 6.3 Historical & Projected Contract, Cash, 6-7 and Muricipal Solid waste Volumes `t! j - 14 - 4r i t r CITY OF DENTON UTIMES r LIST _OF FI RE SECTION 2 METHO LO tY_ FIGURE 2.1 Historical & Projected population 2_55 f_ FIGURE 2.2 Historical Population Forecast i i E IO 3 ELECTRIC UTILITY 3-4 / FIGURE 3.1 Rate Class Energy Sales FIGURE 3.2 Historical & Projected System Peak 3-16 FIGURE 3.3 System Peak Forecast Comparison FIGURE 3.4 Historical C6 Projected System Peak 3-19 Plus Firm r' (SECTION WATER UTILITY ! FIGURE 4.1 Historical & Projected Annual Treated 4-5 } Water Requirements FIGURE 4.2 Historical Treated Annual Water Use 4-6 r Forecast FIGURE 4.3A Available Water Supply Vs. Projected 4-11 Y~+ r Water Requirements for Denton Only d s FIGURE 4.38 Available Water Supply Vs. Projected 4-12 1 Water Requirements for Denton & its 4 Customer Cities FIGURE 4.4 Peak Day Conditions Va. Water Treatment 4-16 a Plant Capacity for Denton Only FIGURE 4.5 Peak Day Conditions Vs. Water Treatment 4-17 E Plant Capacity for Denton & Its Customer - Cities :J FIGURE 4.6 Peak Day Conditions Va. Water Treatment 4-18 ~ r.._ Plant Capacity for Denton & UTRWD TI { WASTEW TE LI FIGURE 5.1 Historical & Projected Average Annual 5-9 City of Denton & Its Customer Cities -1 Wastewater Influent I FIGURE 5/2 Average Annual Historical Wastewater 5-10 - Influent Forecast CITY OF DENTON UTILITIES I { 71 ^i II FIGURE 5.3 City Of Denton with Its Customer Cities 5-12 Historical 6 Projected Wastewater ~w ` Treatment Plant Capacity r SECTI ¢ l SOLID WASTE TILI Y ' FIGURE 6.1 Historical 6 Projected Residential 6-8 J I and Commercial Solid Waste Volumes _ FIGURE 6.2 Historical & Projected Landfill Solid 6-9 Waste Volumes FIGURE 6.3 Projected Remaining Landfill Capacity 6-11 . lA ' ~ 4 Y ' F t i 1 . i 71 i IZ~ CAM i V y 1 r: CITY OF DENTON UTILMES I 1 ~ q x: F i SECTION i w INTRODUCTION 3 q i i f r pSS 114 r~ JANUARY 1991 CITY OF DENTON UUNICiPAL UTILITY DEPARTUENT DENTON,TEMS i 1 Int ■ E TI 1 INTRODUCTION ` 1.1 AUTHORIZATION The annual Forecast is an integral part of the City of Denton's Utility Department planning, programming and budgeting process. It is prepared each fall by the ` Engineering Divisions of Electric and Water/Wastewater { Utilities. The Solid Waste Division has been made a utility and for the first time is included in the utility forecast. The final report is presented to the Public Utilities Board in January of each year. a• s ; 1.2 OBJECTIVE The primary objective of the annual Forecast is to A' S determine a projection of demands upon the utility system as the basis for planning and budgeting needed capital { 'f improvements. This process is accomplished in two general ttig, phases. t s,. 1 j The first phase involves gathering available historical data and analyzing trends. Since demands are related to growth as well as changing use patterns, characteristics related to each other are reviewed. Growth analysis includes characteristics such as population, commercial/industrial J activity and land use. Demand analysis includes CITY OF DENTON UTILITIES u J Ir r k r7 characteristics such as billing history, plant production records, user classifications, rainfall and temperature. The second phase involves projecting Denton's growth and customer use patterns and combining them to project future J utility demands. The demands are expressed in several different forms to accommodate evaluation of a particular { facility, i.e. average day, peak day or peak hour. I " 1 , The Forecast is also used to project commodity sales and raw material purchases such as natural gas for electric production and chemicals for water treatment. This enhances the process for preparing the operating budget. i ,gyp The Forecast also serves to meet some additional" 71 M objectives. The usage and number of customers projections '=e provide a uniform base for developing the utility master i •c` plans. Other departments and divisions may use the Forecast as a basis for projecting their manpower, equipment and space { needs. Indicators for this purpose may include, but not be limited to: - Laboratory test/1000 gallon treated water - Customer service representatives/KWH electricity sales ; - Utility past due notices/1000 customers - Acres platted/100 customer incremental increase i - CITY OF DENTON UTILITIES 1-2 r^ OWN ro I i - Acres subdivision development/100 customer incremental , increase. a Any department or division which has any activities which must i r be coordinated with or are related to utility activities can a develope an indicator to help project their future needs. <<, 1.3 SCOPE This report is restricted to the gathering, manipulation, processing and interpretation of data indicative of the ever changing growth rate and utility use patterns of the City of f Denton. The Certificate of Convenience and Necessity area, Land Use 'Planning Projections, City of Denton Planning ' `j Department Population Projections and various system master 7¢' ~Sr j plans were utilized to develops the geographical limits of the 1 area served. The resulting projections of utility demand were then used to determine the schedule for future system I> r7: ~I expansions. The schedule is included for basic planning purposes I only. No analysis other than that included in existing reports and master plans is undertaken to determine the !!f -J s+ k F+'Y"t optimum size and schedule for incremental expansions. Every. capital improvement identified in the Forecast should be;" reviewed in regards to need and cost effectiveness prior to CITY OF DENTON UTILITIES 1-3 t inclusion in the Capital Improvements Program and again prior to implementation. I Major capital improvements can require anywhere from g desi n and construction. y _ III three to five years for plannin , 9 E wire as much as ten to f twenty a years. Some may req ,r. Circumstances change over the development phase o project jz~ and the changes should be incorporated into the design and s., schedule as they occure 1 indicates the time that a project The schedule only schedule is ' phasing should be in service. The project a included in the Capital Improvement Program. The initial r act should be worked backwards from r start date for each prof ti the date needed in service as provided in the most recent } Forecast. The Forecast is a fundamental tool for providing general ' planning information for the Utility Department. Detailed planning is accomplished via the Capital Improvements PrograM {F. I1 and master planning. It is further refined during preliminary design and is implemented via final design and construction., require Even after construction is complete, the project may } 1 _J modifications due to regulatory and environmental changes, so 3 the planning, programming and budgeting processes go on. taz CITY OF OENTON UTIUTIES i 1-4 ~r • r .x......n....., rh' it 1 fir 1 1 i t SECTION 2 ' METHODOLOGY .Y x \ 1 { Y ~ ffA f ~Y I T ' 11 ,Ir 1 f I _ r t t ' 1 JANUARY 1991 CITY OF DENTON DEPARTMENT 1 ~jI MUNICIPAL V'FfLITY ' ON, ,E►g a DENT 1, ry 1. ` - it i i , " E TI i., METHODOLOGY f ; 2.1 INTRODUCTION Forecasting is basically a trend projection. It can be i1 t s < , based upon cyclical, incremental or random variations. ' Seasonal variations are an example of Cyclical trends. Changes in the number of customers is an incremental trend, though the actual increments may be somewhat random for a--long w term projection. Changes in the use per person may be a better example of an incremental change. Changes in weather patterns j _ or conditions is an excellent example of a random trend. The trends indicative of utility usage were developed for ti y y ~ tie. each specific utility bye identifying the causative variables Normalizing for the random variables ~h Developing usage indicators t" f - - Developing the normal usage f - Conducting a risk analysis. f , The task for developing the trend indicators varies somewhat for each specific utility. It is dependent upon the za c physical characteristics of each utility, i.e. large amounts of water can be stored while electricity cannot, electricity r _7 C11Y OF D£NTON UTILITIES ' I 2-1 S S 1~.. • . Ilf\~ T fiiq®)Id~ t I and water are distributed while wastewater and solid waste are F J 1 collected; and upon the data available. Further detail of the development of each indicator is provided in the discussion of 1r - the particular projection. i ^<°f i J A a! 2.2 VARIABLES 2.2.1 Discussion _ upon the use Historically utilities have depended solely { _ per person to determine use trends and make projections This methodology served well when per capita use and cost of ' • t14... services were low. However, per capita use has risen with the devices and of development of electrical and water using Ee e wastewater generating devices. Cost of service has risen r~. ` g cost and diminishing natural rgf+ a along with risen energy " resources. % ' This Forecast establishes the basis for using causative cat variables while using per capita trends for comparison and to provide validity and credibility for the more detailed and exact method of forecasting. Four variables were identified which may cause variation in the utility use trends. These include population, average j annual temperature, average annur,l rainfall and family Income. - CITY OF DENTON UTILITIES 2-2 r',tl k I 1 i { i 2.2.2 Population i population projections were obtained from the City of Denton Planning Department. The historical and projected populations are given in Table 2.1 and figure 2.1. A 3 „«d comparison of this population projection and projections of ' 1985-1990 Forecast are shown in Figure 2.2. Denton has experienced a decrease in the growth rate over the last ' } i j several years which are reflected in these forecasts. The f;. 4 F~. recent population numbers were compared with the most recent North Central Texas Council of Covernments (NTCOG) population yY! projections for the City of Denton. Since NTCOO monitors the pulse of the metroplex, then any large variation between NTCOG figures and Denton's figures might indicate knowledge of an _ exceptional factor having an unusual impact upon Denton'g w. p.r projected growth pattern. Population projections are also provided for Denton's two g customer cities: Corinth and Lake Cities Municipal Utilities Authority (LCMUA). These numbers were obtained from the most ' recent population projections prepared by NTCOO. The population figures for LCMUA represent only the portion that is served and will be served by Denton. v It is anticipated that Corinth and LCMUA will make arrangements to receive service from the Upper Trinity River Water District (UTRND). The projections of Corinth and LCMUA t CITY OF DENTON UTIUTIES j 2-3 t r t M TABLE 2A FHISTORICAL DENTON, CORINTH AND LCMUA AND PROJECTED POPULATIONS ENTON COR{NTH LCMUA TOTAL N ORO` ~X'~_ - HISTORICAL 21,345 1 P*o 21,345 26,644 t i 110 24,844 2.32 39,174 r: 30,874 E ` 4•04 40,313 :1 11j~0 40063 1.89 1,260 1961 51,912 8.01 1' Mw 33,562 06,127 1962 53,527 3.11 1,7800 60 50,672 1083 53,892 0.68 1,960 06,363 1064 54,413 0.97 2,160 62,E 1966 601466 11.16 2,000 72,946 r z ` , 045 1066 6.41 3,360 6,010 75, 366 107 66,776 2.19 3,560 $,000 70,660 ' 1906 47,000 1.66 9,650 6,040 77,914 ds 224 1.83 6,04 79.06 1469 3,700 1090 69,254 1.65 { { PROJECTED 79,661, 69,416 0.46 3,851 6,115 80,174 1042 70,018 0.56 4,006 6,160 8,100 $oA1' j 70,557 0.79 6,240 $2,261 1 t to 1.60 4,3$8 1404 71,515 4,633 6,200 64,E .41 a 1 73,341 2 ~~361 5,648 6,464 2Q00 63,271 2.61 1070610 2.61 6,215 6,702 2005 94,714 6646 $,969 Wolf 2210 107,762 2,61 7 }ZO,NO {I 122,664 2.61 7,436 1 1615 6,061 71603 14781 ; 2020 139,622 2.61 i 1 * 5 Year IncrOmOnt t0 Year {ncromont i - CITY OF DENTON UTILITIES j 2-4 lsa FIGURE 2.1 150 CI'T'Y OF DENTON HISTORICAL AND PROJECTED 140 POPULATION j YEAR POPULATION I 130 1950 21.345 : 1960 26,844 . . 120 1970 39,874 : 1 1980 48,063 b 110 1990 89,284 . i : . p 2000 83,27E 100 2010 107.782 . 2020 139,622 90 80 ..1.... • ..f O i ^ 70 a~- 60 ....r p 50 1. 40 Y 1 rl.' }yy,(i]yv'., • . .1. • (M1 INy 1 j 30 ' ` 20 10 j. a~ 1950 1955 1980 1985 1970 1975 1980 1985 1990 1995 2000 2005 2010 2010~w',i020r< YEAR e c a .1 I 200 1985 1987 1988 1989 1990 1991 [FORECAST FORECAST FORECAST FORECAST FORECAST FORECAST r r . r . r . r r 180 180 140 s..r ; b y w O 120 ..............i................ ..............i ; ' all x s;y 100 .......r..... yr 80 . FIGURE 262:" r 60 : ................i, r................r............c.......r... CI'I'Y OF DVMT 13I$'PORICAI. • • i~r Ii • pOPtuilftbN • L iUMMCAL POPULATION lt'dIi CAt3'1' . 1 ~ Y. : 40 2020 1980 1985 1990 1995 22000y0n 2005 2010 2015 . i M r. • s S.. w Jar nix- `e . - . y..i... 1 i .M I . have been extended to the year 20201 because Denton is a contract member in the UTRWD. These Cites will still impact 1 Denton's planning but as part of tile UTRWD- 1 Using a constant percentage increase for Population As demonstrated in the projections has one significant flaw. 80's, growth follows a random pattern. Unfortunately no one " can predict how growth will develops over a long time. > However, an evaluation of developments in progress can--help ' r -J predict short term fluctuations in the growth pattern. Denton experienced an unusually high growth rate In 1985. ~y! It has decreased every year since then. Recent indicators . published by the Denton Planning Department Indicate Denton W may not experience any significant growth for the next two to three years and then it could turn upward at any given moment.` K,. -i Denton appears to be primed for growth. Texas InstruMents has completed a new facility in Denton. ISM completed a new AV plant in the area. AlM ance, Airport is under construction# and American Airlines is locating a maintenance facility 'I there. Lake Ray Roberts has completely filled and park .6 facilities are under construction. The northern section of t Loop 28B is under construction. Fort worth's mayor is the i s i W Airport F c president of the National League of Cities. D SY: expanding. The Perot Group has idontified the northwest II CITY OF OENTON UTILMEB 2-7 ; a 10 Nor r I quadrant of the 'metroplex as being underdeveloped In comparison to the other quadrants. Large development groups have requested annexation for approximately 1400 acres. The list continues to grow. f ~t These major developments will eventually be followed by 1 a multitude of smaller projects. More industry means more d jobs, more residents, more homes, more groceries, laundries, gas stations, etc. This process takes time, but the`inftial developments are underway. .Rr The population projection assus,efs that the decreasing xM n , growth rate trend has about ended and the rate will continue upward. The average annual growth rates by decade are given ; b u ~ y F`t II - in Table 2.2. 44, ell. ' 'I C11Y Of DENTON UTILITIES 2-8 t y- r' j we r i t TABLE 2.2 AVERAGE ANNUAL GROWTH RATE BY DECADE VP ,L. AVERAGE I . • ! ' ANNUAL ANNUAL pOpULATION GROWTH RATE INCREASE r~ DECADE J 549 2.3 i. 1950'S 4 1960.5 1303 .0 1.9. 1970'S 818 2122 3.7 1980'5 ' 1399 1940' S ~f f J 20005 2451 2.6 15 4 3184 2.6 ' 2010'5 ected events could cause the growth ` Any number of unexp k rate amount to vary, particularly on an annual basin. _ wlds and Indicated in Table 2.3, Denton experienced a very random growth pattern during the 1980'e. i 1 A CPfy OF DENTON MUM r 2-9 'et.4»~X=fi'r-vplalIF. eV wr.n• r I 1 TABLE 2.3 HISTORICAL POPULATION ANNUAL INCREASE IN THE 1980'8 ` YEAR POPULATION ANNUAL PERCENT CHANGE CHANGE • ~ •r' 1980 48,063 N/A N/A .ai 8.01 51,912 3,849 1981 ` r 1982 53,527 11615 3.11 ~i53,892 1983 365 CIT,. 521 0.97 , i 1984 54,413 l 6,073 11.16 r 1985 60,486 1986 64,365 3,879 6.41 ' 1987 65,775 11410 2.1 1,225 1.86 1988 67,000 , ! 1989 68j224 1, 224 1.83 I , 7 1990 69,284 1,060 1.55 Denton experienced relatively high growth during the rp~ 60'8, In the 7008 the incremental growth rate dropped by 53 ^r percent. The growth rate increased 89 percent in the 80's. l However, growth during the 80's was sporadic. The average WAS 3.7 percent. The low was 0.68 percent and the high 11.16 ' ; • percent. The highest growth occurred in the years 1965 and 1986. The year 1985 growth rate was 85 percent greater than i 1986. MY OF OENTON UTILMES 2-10 . ~Y • ..v.-u+.wn~Adi,a'w d 1. e'•v"F IYv J...an _:i i Denton has demonstrated a growth potential in the range iH of 6 to 10 percent per year. However, this was a very short lived phenomenon, Because of the current emphasis on major f commercial and industrial development in the Denton area, it .1 `,y I is reasonable to anticipate a sustained growth rate in the ` ti a p' range of 2.5 percent to 2.75 percent per year. ! Because the Forecast is prepared annually, Denton is better able to position themselves to adjust to any-sudden I t I changes in the growth pattern To accomplish this, the City I staff must be acutely aware of any activity which may have an , affect on growth. 1 :t~1 2.2.3 Weather S~ INTRODUCTION I ~ Changes In the weather have an effect on utility useget can be explained by seasonal changes. Most of the effect ca However, not every season is the same, Some summers are hotter and drier than others. Also, not all utility use is effected by weather changes. Washing dishes, cooking meals, t,. washing and drying clothes, lighting homes, and solid waste { generation are examples of utility uses which occur independent of weather conditions. Weather variables are used ,r p1 tj 7 *ra. ~ to help explain the variations in usage for certain weather a` _1 dependent activities such as heating, cooing and lawn , ICI watering. n y r i - C"Y OF DENTON UTUTIES i E 2-11 y `CV7' a a+. } r i 4 1 k TEMPERATURE The electric utility is most affected by changes in the w r z temperature. come rain or shine, mechanical devices will be pieced in service to control the interior environment. The 11~ electric utility industry has developed a measure called the degree day. Basically this is the difference between the hrr' average of the high and low daily temperatures and a standard base temperature of 65 degrees Fahrenheit. it is referred-to as a cooling day if the average is above 65 degrees F and a heating day if below. While the degree day is not a direct measure of energy requirements, it has been proven to be a demand. Degree day Information I reliable indicator of energy ~i J_ for the Dallas - Fort. Worth area was obtained from the U.S. w F Department of Commerce, National Climatic Center, The degree i day was used as an independent variable in the linear regression analysis. Temperature was determined not to be a causative variable Y i _1 d for water demand. Heating and cooling is dependent on a 1 fit. 1 temperature differential. However, people do not tend to wish I r T ~ their cars or water their lawn more often because the daily 1 ` P 1 J high increases from 95 degrees to 100 degrees. Temperature I was not included a6 an independent variable for water a peg r.. projections in this Forecast. CITY OF DENTON UTILITIES r I 2-12 r r I~ tl 1- J 1I 4 1 f 1 % j RAINFALL bY 1 affected t roc demand is Sndi Y e temperature is typically lower during a storm Fandtends tric utility 1 j The degree day' cause a lower degree d ay. including r' torm. Therefore, reflects the effects of a s riable would be a redundancy. r , 11 as an independent va rainfa electricity Rainfall was not used as a variable for projecting a t '4 ` r ,tl demand. Y r I h Sii'ce rain is water, it should be expected that water 1 ;.r demand is directly affected by rainfall. However rainfall has Rr. little or no effect on water use for the months between November to the beginning of March. The correlation between r i rainfall and water use is greatest in the late spring and the ;y j summer months. This proves to he especially true during times 1 of heavy irrigation demands. The water demand more than doubles during the lawn watering season. Rainfall was used as water demands. y an independent variable for projecting 1 . I 2,9 NORMALIZATION change. These r variables are factors that regularly i i include such phenomena as growth, income, and weather, all of . which change in a fairly random pattern. The only variable ' that changes with exact predictability is time. 4 £ CITY OF DINTON UTIUTIIS r` -13 N J . 1'. tit.. 1 P ~yia i f Fm alization is the process by which uncontrollable i.e. normal such as weather are held constant, is ure. Then the controllable independent variable's growth are allowed to change in accordance with their projection. From this the dependent variable, utility demand, rowth during normal years. 4 fir" > is projected based upon predicted g Any variance from normal is not considered at this point. , 1k d 4 ~o. r 2.4 RISK ANALYSIS 2.4.1 Discussion "w while The demand for natural resources is increasing their availability is becoming increasingly rare. Pure energy ,i s and remote locations for waste disposal , clean water supplies are much more difficult to locates our concern for the The equipment, manpower, l environment continues to heighten. I. - « technology and effort required to provide utility service t d~~ increases annually. As a result, the coat of utility service, is no longer dirt cheap. For this reason we must seek to .4 i improve upon the methods used to plan for the future The Utility Department has adopted the use of risk tan for two risk$$ an ' Utilities generally p is analysis. tb p unusually high demand which exceeds the plants ability supply and an unusually low demand which does not generat. revenue sufficient to cover basic expenses. s r k he) Cr>!Y OF OENTON UTILITIES " 2-14 1. {~r~3r.. P 1 u.. ..........~nn,.4w+.. r:„ ,a. Ml r.n i£ 4a /t 0 a., I a i 1 i 1 Risk analysis>is a fairly simple procedure. Projections s must first be made in accordance with a normalization procedure, The independent variables are adjusted to reflect ` i extreme conditions. These are taken from historical events. New projections are then made using the high low extremes. Analysts can use these parameters to plan system I fr' improvements, develops rate structures and develops contingency plans. 2.4.2 Electric Utility Degree days was one of the independent variables in determining the electric consumption. However, the risk analysis based upon degree day extremes did not result in a difference in projecte4 electric demand. This is ~ significant speculated to occur because cooling degree days increased as heating degree days decreased and vice versa, The annual demand per person tends to remain constant. For the electric utility the risk appears to rest primarily with the ability to project the population. Since this cannot be quantified, then A, a true risk analysis cannot be performed. i r . The utility department will continue to gather data, x" i necessary to perform a risk analysis. Such analysis will be included in future forecast as deemed appropriate. h•. 1 CITY OF DENTON UTIUTIEB A, . 2-15 - 1 -7 1 1 I ^ 2.4.3 Water Otility Annual rainfall is the independent variable used for risk analysis. It proved to show a significant difference when r _ evaluated for extremes. Wet year demands are fifteen (15) percent less than normal and dry year demands are seventeen (17) percent greater. 2.4.4 Wastewater Utility Unlike water, which is dependent mainly on population-and' 4 the amount of rainfall, wastewater is much more complicated to r} ,,1r I analyze. Wastewater is dependent on population, rainfall, the e~4 , ' , Y"4 condition of the collection system, and water use. Wastewater, • f.r is also only metered at the wastewater treatment plant and point of entry to the collection system for large users. r'r 41 Attempts were made to normalize wastewater with respect v` to rainfall. Poor correlation was found to exist between the I two. This is probably due to the fact that different rainfall Intensities provide for different amounts of inflow/ Infiltration (I/I) for equal amounts of rainfall. t; In the 1990 forecast the wastewater flows were based upon ; a percentage of water use. Further studies have found that F this approximation can have increased errors during dry months c+: J, and years. The 1991 forecast uses population as the primary dpp ..~r '.1 . ' YU44'.variable to derive flow. For the 1992 forecast it is planned CrrY OF DENTON UTILITIES I- " r s^ ~N 1 i 111 j to graph daily data dry year to determine seasonal base flows and seasonal Ili. The data base has been completed but the a F need to be analysis need to be conducted and the graphics generated. 2,4 .5 Solid Waste Utility water, and The solid waste system is unlike the electric, x } weather r wastewater systems in that it is not effected by t, r1f;a driven by population. € trends. The solid waste model is solely 1 of the commercial I • P Variations are Provided based oil the sel Y} ` and waste reduction. cling portions the effects of recY 1 .41 71, 1 i f (r LMES Cfry OF DEWON Y M ..L d" ~1 i 2 -17 4 . 41 , a, 0 T s i ~ i I a,' i SECTION 3 ELECTRIC UTILITY ' WIN* r ~ r, FZ~ t c~ to JANUARY 1991 € CITY OF DENTON UuNimpa UTII.I'CY DEPARTILENT DENTON, TEXAS t p y f,~ Y ffA._ 1 11 ~ v r ~itW.HS'7A'M+kN,~' f14ti'{4{iif~++.' ~`~'rr1+~, ►"i'k 4Y~t'~'d~'' " ~ ~y'.l Jay ~f,f nl~ac;"'.iU~12 ~ i;i i c I f SECTION 3 ELECTRIC UTILITY , 3.1 INTRODUCTION Given the current total environment a utility must I operate within, an accurate and credible system demand and energy forecast is essential for two basic reaeonr. The first reason lies in the fact that a demand and energy r I forecast represents the necessary first step to sound ' I construction, op)rating and financial planning. The second ` i reason for developing a sound demand and energy forecast can'♦' be found within the framework of credibility requirements, To an ever increasing extent, regulatory agencies, financial :f } ^~jk institutions, and various consumer or public interest groups 4d `5, are demanding to know not only what the utility's forecast of requirements is, but upon what considerations the utility ; bases such beliefs. i' I r , Given the above considerations and their impact upon the 4.• long and short range planning requirements for the Cltyo the Utilities Staff has undertaken to prepare a forecast of system demand and energy requirements through the year 4000. F ~ CITY Of D£NTON UTILITIES _.I 3.1 I til 4 L SCI .I. I 3.2 METHODOLOGY Table 3.1 and Figure 3.1 show the rate class energy consumption comparison in megawatt hours for residential, - commercial and industrial, and miscellaneous. In developing this model, data availability constraints played a major role. Maximum use was made of as many relevant historical statistics as could be obtained within the time period available for model development. This model utilized the time series and regression analysis. The time series reveals past patterns of growth and change that often can be averaged or measured in such a way that a projection can be made. The ~J regression analysis measures the nature and closenesa of the r.*. i movements of two or more sets of data and their rate of occurrence. The key variables are population, customer service number of customers and energy consumption, time, and i weather (yearly average cooling degree days). The cooling degree days is the difference between base value 650 r and the maximum and minimum outdoor temperatures. Cooling degree Y »t days account for the impact of weather variation upon air conditioning load. 3.2.1 Residential s CUSTOMERS Table 3.2 presents the historical and projected numbeir ' of residential customers. The forecast of residential CITY OF DENTON UTILITIES 3-2 r, TABLE 3.1 RATE CLASS ENERGY REQUIREMENT IN MEGAWATT-HOURS COMMERCIAL RESIDENTIAL INDUSTRIAL MISCELLANEOUS' " YEAR ENERGY %INC ENERGY %INC ENERGY %INC ' 1069 240,916 414,434 43,931 s 4 . " 1990 283,760 8.33 460,268 4.27 49,276 9.99 1991 287,363 1.42 468,293 1.74 60,066 3.71 sX 1992 289,170 .70 476,908 1.65 511143 9.1E , 1093 261 r586 .03 483,595 1.60 521064 1.80 1994 266,329 1.61 403,400 2.03 821857 1.62 J 1995 274,067 2.09 508,374 2.63 33,574 1.36 1098 262,287 2.99 5190x J 2.60 64,224 1.21 - 1997 2901815 3.03 b32,817 2.56 64,607 1.06 1908 299,830 3.10 546,422 2.55 661370 1.03 ` . 1909 30008 3.09 660,101 2.80 $6,866 0.94 E j - 2000 316,564 3.07 573,694 2.46 861360 0.64 - %INC IS THE PERCENT INCREASE E , i CITY OF DENTON UTILITIES 3-3 r v r ,f t~ ~ ~ l i 4 ,1. 700 FIGURE 3.1 RATE CLASS ENERGY SALES .».N..I...N1.....•.........I.....111..I..I......I......IN...•.....N.I....I•.N.. •.1. (GIGAl1ATT HOURS) 600 1•••11• NI•• 11 \••1 IM1.• INI•• •N,11.1 1»\11.•• •IM11•I.I N1111111.•N 1 1 • 1 • • n 500 .1.........I N. L,.I...... N,,...I N.....11.' N DO t Du QQ W Da Da DO D9 IN•1•• N111 .N111 •Y•\..1.\• 1 1,1 •11 NI 1••1• N111 N.11• .•111• 400 w ...1. 11.1.1. .1.... .N••1. .N.1 1».1 •1111 1/1 , . 111.1 4 300 ...1... 1.11..• .N1.. •N1.. IN1.1 i,; .Du 14 U} I' •1\11MIN1 INI• .N1.N••1.1\1 200 NI• 1111• ~A. T~ •N•• IM11 IY11 IYI 1.111111.1 111•• •M11 11.11 11.•1 •111• 100 .1. N.. 0 1989 1991 1993 1995 1997 1999 YEAR i =RESIDENTIAL COMMERCIAL do INDUSTRIAL 1naC=IZA!1TROU5 N~. 1 Possesses, i i" r i 1 e n h i ! TABLE 3.2 F HISTORICAL & PROJECTED I' AVERAGE MONTHLY NUMBER OF CUSTOMERS CLASSES 1960 1N0 1991 1902 1993 1984 RESIDENTIAL 29,447 23,640 23,787 47,994 24,108 24,410 j t i l li COMMERCIAL 3,047 3,090 5,180 3,169 3,141 9,114 r INDUSTRIAL 31 29 33 33 34 36 ' GOVERNMENT 188 170 171 176 111 144 •'y STJHWY LIGHTS 20 u 21 30 OUSK•DAWN LTS 27 26 26 31 22 { TEMPORARY 74 74 75 76 60 TOTAL CUSTOMERS 26,737 26,666 27,272 27,426 270631 21,007 I `f AVERAGE MONTHLY SALES(KWH)/CUSTOMER E RESIDENTIAL 866 666 904 003 ON 107 a COMM. E IND. 11,184 12,497 12,260 12,427 12,890 121017 CLASSES 1996 1990 1087 1995 1898 2000 "E RESIDENTIAL 26,060 28,614 26,336 27,024 279726 211413 COMMERCIAL 3,176 3,162 3,1b 3,169 3,161 3,104 INDUSTRIAL 36 37 30 41 49 44 GOVERNMENT 111 191 194 187 199 001 , STJHWY LIGHTS 30 31 32 33 34 24 { DUSK-DAWN LTS 33 36 34 37 S6 40 I` J TEMPORARY 64 N N 40 N 04 TOTAL CUSTOMERS 41,806 29,246 200511 30,611 31,328 32,011 , AVERAGE MONTHLY $ALES(KWH)/CUSTOMER ° RESIDENTIAL 611 1116 920 421 926 994 COMM. 6 IND. 13,129 13,449 13,788 14,0116 14,437 140770 A . r CITY OP OtNTON UnuTIEs ~I 3-5 9 customers was derived from the forecast of City population by using the multi-linear regression analysis for the annual and actual data of 1983-1990, The growth ratio will increase from 1.01% in 1991, to 2.61% in the year 2000, Residential i 4's 6 customers are projected to total 28,453 in 2000 versus 230540 j_ r customers in 1990 MEGAWATT HOURS Total residential electric energy sales were developed` pzP°~ as a function of the population and the yearly average'. cooling degree days as independent variables in the., multi-linear regression analysis for the period 1903-1990. E Era:, r` The weather information was based on records of the local, F ha climatological deter In the multi-linear analysis, the coefficient of determination R-squared value (90.0%) k } represents the samples estimate of the proportion of r. variability of the dependent variable (megawatt hours) in relation to the variability in both independent variables,, fi,«'3 J population and the yearly cooling degree days. L .r Table 3.3 depicts the projected total sales of megawatt hours. They will grow from 1.42% in 1991 to 3.071 in 2000. F t' _ n -CITY OF DENTON UTILITIES 3-6 J x, ~A i i , ~t - TABLE 3.3 I~ HISTORICAL & PROJECTED SYSTEM ENERGY REQUIREMENT FROG 1989 1090 1991 1902 1993 1994 ; y , ,E 240,410 2&,re° 267,3& !69,170 261 AN 204,418 240,109 344,906 750,941 253,164 264,100 241,!7! F., INDUSTRIAL 200,625 212,343 217,523 322,&9 227+416 ?11,525 ,161 42,164 43A64 44,931 46,746 49,405 38GOVERNMENT $TJHWY LfaHTB 3,876 016 4,130 036 4,10 4,170 1,760 1,772 1,641 1,931 1.16 DUSK-DAWN LTS 1,03 .41 230 233 !1 r 241 334 - F r. TEMPORARY r 742,304 775,122 704,311 791,246 912,8" , TOTAL SALES 724 Z61 40,428 51,3~e 43,9& 44,644 44,204 46,074 r LOSSES ,710 61so$ 819,104 530.06 842,446 40,640 746TOTAL ENSAGY %LOSS 5.0 6.73 9.67 5.47 5.47 667 7, PEAK DEMANO(MW) 3013 6017 9041 .4499 .6048 S .4072 0 LOAD FACTOR ° tre 164 197 114 191. 164 SYSTEM PEAK ENERGY(MWH) 1998 1098 1997 1995 1_ RESIDENTIAL 214+041 282,367 290.15 290,06 304,00 310" I - COMMERCIAL 271,299 MAN 291.71 302,816 313,101 UGA64 INDUSTRIAL 238100 2361294 341,148 243,774 948.10 216,130 z GOVERNMENT 47,033 47.41 "AN 64,40 48,01 49,1!0 sT,MwY LIGHTS 4,204 4440 4,218 4,314 4A0 4~1 rL,. DUSK-DAWN LTS 2,040 2,164 3.41 2110 2140 1,467 241 264 its 2q TEMPORARY 247 - 440,87 TOTAL SALES &4Ats 60,005 679,434 401.35 LOSSES 41,260 44.38 44,801 610171 52,4" 0,7M TOTAL ENERGY 01,201 904AM M,244 95!,750 677,141 1.02,"1 5,67 6.47 9.47 4,87 4,87 591 ; W %LOSS PEAK DEMAND(MW) 1081 ,6004 AM ,5095 18104 .6115 j LOAD FACTOR 1M 264 312 !18 05 . SYSTEM PEAK CITY OF DENTON LMLITIE9 I 3-7 ~,k 4 y4 1 t,.. - E I j 3.2.2 Commercial CUSTOMERS Commercial customers were forecasted using multi-linear E t,.' hl regression on the annual data 1985-1990 with time and L - population as the independent variables. The commercial -4 class is expected to increase from 3,155 in 1990 to 3,216 in sac J ;c the year 2000. ' f 7 MEGAWATT HOURS The commercial sector represents a diverse group of customers which provide a wide variety of goods and services 4. to the inhabitants of a particular area. Linkage for . commercial forecast was based upon the multi-linear w j regression relating the independent variables, such as the E yearly number of population, and the average yearly cooling degree days for the period 1986-1990. The coefficient of , ; k' determination R-squared value 0.97 measures the proportion of .4 historical variation in the dependent variable commercial ` megawatt hours to the variation in the stated above. independent variables. The growth rate in MI is 1.6= and _ 3.6♦ in the year 2000. r 3.2.3 Industrial CUSTOMERS *9 Industrial customers were projected on the basis- of linear-regression trend for the 1965-1990 historical billing MY OF DENTON UTILITIES - I 1. data, with time and population as independent variables. The 1 pro ected to be 33 in monthly average number of customers is P j 1991 and 44 in 2000. } w.r r. MEGAWATT HOURS y+. 5 Energy consumption for the industrial sector WAS V 1 r'S , predicted on an annual basis using logarithmic trend for the historical data of the years 1987 through 1996E This clew Is rejected to increase from 217,339 megawatt hours in 1991 ' p t.1 i f to 248,430 in the year 2000 Ei p^ ~ l 1 342*4 Government . F CUSTOMERS 1 Government customers were projected on the bads of an ' y rr. f1~ ,np annual logarithmic trend for the period 1988-1990 due to inaccuracy of data. The monthly average number of customers s eriod 1991 is projected to vary between 171 and 201 for the p through 2000.x. Y F , MEGAWATT HOURS 1 [!a' Multi-linear regression was used to forecast govornalont data for energy consumption utilizing the historical billing the 1988-1990 period. The variation in growth rate projects a decline from 4.11 in 1991 to 0.71 in 2000, i. yy~45 ~ rw CITY OF DEWON UTILITIES ; 3-9 i ...mom,., r i s 1 4 ~ 3,2.5 Miscellaneous MEGAWATT HOURS d s In reference to Table 3.1, miscullaneoue represents the total consumption of street/highway sum of energy lights, 'k services. ervices. dusk-to-dawn security lights, and tempo Y tr , Lights 3.2.5.1 Public Street /Highway 3 t•" F' CUSTOMERS rt: In Table 3.2, the ratio of customers for the period of ~ tales. raa 1991 through 2000 is the same as the ratio of energy r for this category. MEGAWATT HOURS. sales of this category were ^ 3 energy In Table 3. growth for ' I ` ,Zr megawatt hours y projected by considering 0.576 'i every tan residential customer lncreaeeo The multiplier d, rr 0.576 represents the product of the Bulb Wattago Factor -J e, (0.048 MWH) by the number of annual bills (11). For oxampi the increase in residential customers during the years 1990 e % add r~1 1991 is 247. In 19901 the megawatt hours was 4116 and the corresponding consumption for 1991 is computed as$ ,r 4116 + (247/10) * 0.576 4130 megawatt hours t r CITY OF OENTON UTILITIES 1 ' ~.tN 0,0 I i I 1 I The energy consumption of 1990 was used as a basis for F, _i projection of other years. The public street and highway I lights may expect the following growth rates in megawatt ,r houre1 0.31 in 1991 and 1,01 in 2000. I Ii + 3.2.5.2 Dusk-to-Dawn Lights 'pry CUSTOMERS i r In Table 3.2 the ratio of the number of customers for the period of 1991 through 2000 is the same as the ratio of energy sales for this category. rR , C-4 J MEGAWATTS HOURS in Table 3.3# the energy consumption for Dusk-to-bawd # was forecasted on an annual basis using linear trend projection for the period 1985-1990. The 1991 growth, rate i a • 1.951 and 3.31 in 2000. 3.2.5 3 Temporary CUSTOMERS In Table 3.20 the growth rate increase in number of customers Is the same as the growth rate increase in total energy retail sales. W , CITY Of DENTON UTILME9 +T T-- „ - - r t I 1 i MEGAWATT HOURS Based on the 1990 billing data, it was decided to apply the retail sales in megawatt hours growth rate to predict the Jti future consumption requirements of this rate class. The ...growth rate pattern in energy consumption for temporary services is assumed as the system sales growth rate. 3.2.6 Losses " The forecast of megawatt hours for losses was generated J t by assuming that the energy so classified would amount to a constraint of 5.67 percent of the total system input energy rt, requirements" The 5.67% level was based upon the observed Past values. This value is below the industry standard of 6% l r because of the electric system compactness as well as the aggressive program in place for economic conductor replscsmer*. r, and transformer loss evaluations. 3.3 SYSTEM PEAK LOAD F r' ' The effect of Denton's generation and distribution planso and the operation of its existing and future capacity is of particular importance to the residents of the City. Since Denton is n participating entity of the 'texas Municipal Power Agency (TMPA), increased importance is placed not only on the evaluation of Denton's existing generation$ but Aliio 9 the generation and transmission facilities owned and operated E by TMPA. The reduction in system peak demand parcentage Of y, C" Of DEWON UTILITIES is °•.r, 3-12 ne ear.. 1 1 I` l 22.59 in 1989 to 21.90 in 1990, has lead to cost reduction to the citizens of Denton. In reference to Table 3.41 Column 2 represents the i historical and projected annual peak load. Column 3 i F 'r represents the 151 spinning reserve as per the Electric Reliability Council of Texas (ERCOT) requirement. The spinning reserve criteria requires TMPA systems collectively be on line and ready to take load. The 151 reserve {,9`•` requirement may be changed to 201 in the future due to the larger unit size of nuclear generators, as shown In Column'4. Column 5 lists Denton's share of TMPA which is:22.591 of peak load (405 MW) for the year 1990 and shall decrease to 19.971 by the year 2000. L' x The total capacity in Column 5 represents the sum of Denton's share value of TMPA and Spencer Plant total installed steam-gas capacity (176 MW), diesel generators (2 7 MW) and hydroelectric capacities (4 MW) for a total of 162 j MW. The breakdown of Spencer Plant installed capacities, Is as followst Unit 41 is 13 MW, Unit F2 is 13 MW, Unit i3 is i , - 27 MW, Unit #4 is 60 MW, and Unit N5 to 63 MW. The percent I_ share from TMPA is expected to decrease due to continued Implementation of load management programs. P `'1 " A total of two megawatts was added to the maximum N, } CITY OF DENTON UTILITIES r, I 1.. 3-13 i i TABLE 3.4 HISTORICAL & PROJECTED SYSTEM PEAK LOAD AND _ CAPACITY IN MEGAWATTS WITH 1596 & 20% RESERVE s . FOR 1989.2000 WITH NO FIRM CONTRACT SALES RESERVE ` PEAK TOTAL DENTON SHARE ' YEAR LOAD +16% +20% CAPACITY OF TMPA .5 ` e + i 1659 176 202 211 261 91 1690 164 212 221 264 111 j 1001 187 216 224 273 91 ref, 1092 i49 217 227 272 00 1993 191 220 220 271 A0 I 1004. 194 223 233 270 88 ' < 1908 190 229 236 270 88 x 1906 204 233 245 262 97 l 1967 209 240 231 240 1095 213 245 255 267 Id AVM 1900 218 251 262 254 84 2000 223 236 26,6 263 61 a' { 1.16% IS THE PAESENT AEOUIREMENT OF ELECTRIC RELIABILITY COUNCIL OIL TV(AS (ERCOT). THE 16% MAY 0E CHANGED TO 10% IN THE FUTURE OUR TO NUCLEAR GENERATION s . 4 J E. TWO MEGAWATTS WERE ADDED TO THE MAXIMUM SHARE IN 160 DUE TO BLACK OUT STARTING CAPABILITIES AT SPENCER PLANT S 3. POUR MEGAWATTS ARE ADDED TO MAXIMUM SHARE IN 101 DUE TO RAY RO#070 (1A MW) AND LEWISVILLE (2,7MW) HYDROELECTRIC PROJEC7't CITY OF DENTON VnUTIRS 3-14 44J; e . gY 1 t capacity in 1989 due to black-out starting capabilities of diesel generators at the power plant. In addition, the City 1 will increase the maximum capacity by 4 MW in 1991 due to Ray Roberts (1.2 MW), and Lewisville (2.7 MW) hydroelectric ` yw' a projects. Y Denton anticipates new generation additions in the year 2003 for the 151 reserve, and the year 2001 for the 200 reserve to meet its projected load requirements with no firm ; rr contract sales. (See figure 3.2). Denton, a an entity of TMPA, shall participate in the 211 of firm contract sales to :T Farmersville (5 MW), Bowie (14 Y.W), and College Station (100 ` MW). This shall cause Denton to be capacity deficient by then f l year 1995 for the 201 reserve, and by the year 1498 for the r I 151 reserve as shown in Figure 3.4 and Table 3.5. F. The City's load management program is reflected through system load factor from 0,4972 in 1989 to 0.5123 in 2000. Figure 3.3 shows the comparison betwv*A the load forecast which was done by Gilbert Commonwealth IA 1979 and ' the City of Denton's Electric Utilities 19890 1990, and 1991; load forecast. i ~ `E Table 3.6 compares forecasts by Gilbert Commonwealth &Ad ` the City of Denton which concluded that the economic and ,J electric system growth potential for the City of Denton 1 ,ry MY OF DENTON UTIUMS y. 3-15 I . , r dej C,. N NNW e H l i1 1 a' 350 HYDRO TOTAL (4 MW) CAP CITY 300................. . Di1sj •r' s3Eis (2 F 250 i........~. ; aox rdcszm • y, 000 "toussill woo • ' • • . ' •d • • • Woo . •d• ' 200 yuu •4u u.•../•?♦♦♦uu PEAK F 150 .....:...............Y.•..;•...•....{•...............•..;. r.;. •♦..•..Y•. DIM" INSTALLED CAPACITY .uu1r•. •....•M•.• u;. u.. •I •••YU• j u•...t'1 • ♦u.•YI N; 1♦•1 •i• ! 'T{. 100 DENTON'S 1 ~ SHARE ~ OF TIIPA 54 t FIGURE 3.2 s rilm PUN 0 1994 1995 1996 1997 1996 1944` x600 1969 1990 1991 1992 1993 YEARN r. rr 1 , xi' JT 4 i +.wi~.+, SM ' r ~ ,141• 4 , i 330 I I ;HYDRO: TOTAL 157G 1 • 20X • CAPACITY j(4 MW): i RESERVE i RESERVE : .}...11 .I.. 1. t. ...1.....1.1..x.1: I.... L t.l..l..ll I...I.I 300 ......•••1. ti1111 ...11 .11.11.....•.•1, DIESELS 1 (2 MW) 1 : . ......1....... 1:......... ,...1. ' . ...I S... 11.• 1.......; 1.1. r.1..»..ll.l 1 250 : owl I I 110 ~llllmwmq yl• J. 200 ♦•••...r.... .1. 1?1.1..... .1.11.•.1;1.1 1111..1.1..1............ 11.•1.1.11 t1 ...•1.1 .11.• ...11;1..1.11.•., . 11.1.1 l,r v 1 ' ' 1 x ' ' , • n: INSTAUSD G I : : : • • 1 ' ' : : pl'. . lid CAPACITY f: v J - 150 .1.u..:. n.r1.11:.ulflu. 1u.u..•11.11.11.I:rl.l..ulj.ln...n u1••1 r..f ,1 1x1...,1 j.J1 fl..•;ufl•n l.1 ~11f flu w.l nlr FM CONTRACT SALS3 : 11) i. 1 ` ; ` ; • • , ..f 111 .?.•1..111111..1111.1x1.11, 111.x. 111.1 x..~lxlx.l•1. ir1.111•.1;•11.11111 •1.11 .1•. ;1.1 11111 ~.1.1.1111r' x111 .1.x ;111.1 11 Y. 100 , qF DENTON'S SHARE • OF TMPA .11111111 1,1.1 501110.66 .1.11.1111. 1f. 1 r4 1..• 11111 111. • FIGURE 3,4 ` • . . 1 , Y ffi9TORICAIL k P'ROJOG'' m D0fro '6 syff 01[ pw PLV31m tomwCT "m : v 1969 1990 1991 1992 1993 1994 1995 1996 1997 1990 1999 9000. ti'NyM1kti YEAR , Ufa. 6e.~ j K~ 1 e Y. R i l TABLE 3,5 HISTORICAL & PROJECTED SYSTEM PEAK LOAD AND CAPACITY IN MEGAWATTS WITH 15% & 20% RESERVE FOR 1989.2000 WITH FIRM CONTRACT SALES ~ I PEAK RESERVE TOTAL DENTON SHARE YEAR LOAD +16% +20% CAPACITY OF T'MPA A • - 01 : x 1969 176 202 211 261 o' ' . 1660 164 912 991 2N 01 I 1061 211 243 269 273 61 1692 219 246 286 272 1093 216 247 260 271 1004 216 261 262 270` 1006 223 286 266 270 ~ 67 1006 228 262 274 269 A' 1007 233 266 260 286 M ! lm 237 273 264 267 1000 242 276 200 268 64 2000 247 264 206 260 IS , d1.16% 16 THt P11E6INT RIOUIRIMENT OF INCTRIO 14"ILIIY COUNCIL Of TVM (10001'). THS 11% MAY ON CHANORD TO 10% IN THI PUTURA DUI TO NUCLEAR OINIMTION 2. TWO M/OAWATTO WE01 A0010 TO THt MA)DMUM 6HAR1 IN ION OUR TO SLACK OUT STARTING CAPMI VI INS AT 6PINM PLANT S. POUR MIOAWATTO Mt ADDED TO L"MUM MARE IN 101 DUI TO MY ROUM ' - (1.1 MW) AND LIWIIYILLt (4.TMIM~ HYD11611lCTRIO PACTS 4.14 M90AWATIS ML AbDIb TO ►IAK LOAD IN 1"1•2000 *UK TO FIRM CONTRACT SAlts j OITY OF DINTON UTILITIES ;t, 3-10 a 250 ; , „ t• •,111, 1, „ 1,• 1,1, i.. .1,.. .,..,1 „ 1, 1, 1, ,,1 240 ' DENTON , 230 1999 220 GILBERT c ' 210 COkMONWEALTH ' 3 w 200 ' .11 \.,1„ .1,.1 .11 .1.1, ..1..,,.,. 1,..,...1. .,..1 ...11 ./1.1. 1 190 .J, 1Y0 .,..1 ,i ...........................j, ,.11.1,•.1 „ 11,.,1 „ 1,, ,,.1 ulll., ;.l . 1••1• .,.1, .,,.1~,1. , DENTON ' • 1991 • 170 i DO t.lll✓1. , ..,..1..,....,,,1,......1 . 160 , 1900 c 1'30 r~ ON ACTUAL ,y l., ...1,,...;....1...1..1,...,.,,.1.,11 .:..................•....1111.•,...,11,.,... 1... 11111~11'U 1..., , ~"•4 5., 140 • ,P~ 130 ~ i 120 ..1, .1.11..11......1,..111 ...11.......1.......... 1. • FIGURE 3:3,' 110 's sysm PUK lp n COLP Qp alms" t> • 100 1950 1965 1990 1905 YEAR k~l a 1 p I 1 I ` F {A 1 ✓ P i A I,is IL, i IMF- i I { TABLE 3,8 z 7 SYSTEM PEAK FORECAST COMPARISON IN MEGAWATTS ' 197901L8ERT DENTON YEAR COMMONWEALTH 1019 1900 1N1 ACTUAL " 1910 110 131 y 103 1 1N1 190 19412 140 133" 1053 160 140 WA N/ NIA 1954 194 163 Al'` 1lS6 196 171 a 1N7 190 170~r 1911 1N 181 a 1919 907 114 176 • 1990 414 1S7 161 104 1991 109 164 117 s{`' ' 194119 197 119 110"~~ 1900 909 109 101 19414 107 1" 1#4 1901 910 901 190 NIA 1996 417 901 904 NIA 993 9011 900 1997 J 1NS 997 013 943 i 1900 931 919 910 1 J 9000 431 999 993 ! L 1111 LOAD FORECAST WAS DONE BY OILSERT COMMONWEALTH INO. FOR 11/0.100 f 9" 109, 1090o AND 1991 LOAD FORECASTS WlFlE DONN BY INN CITY OF DEN70N 3 1LSC"10 DSPARTMENT CITY OP DENTON UTILmES 1? 11, 3-10 74 . i ik fi> 4, r _ . : _ . cam' i. I during the period 1980 through 1990 is strong. This conclusion derives in large measure from the floe growth t within the the City, by virtue of its strategic location . Da11as-Fort Worth Metroplex and its proximity to the Dallas Fort Worth International Airport, may experience continued j ndingly 1 growth in the commercial and indnatrial base. Correspo ' increased employment opportunities resulting from an expanding economic base will lead to continued growth in the fP, residential sector. Gilbert had estimated that the annual to row at s compound annual system peak loads are forecast t q i. it rate of 6.3 percent, compared to the City's compound.growth rate of 1.1 percent in the 1989 forecast. + rti, TW "I 3,4 SUBSTATIONS LOADING The distribution system rates high in economio importance, and represents an investment that make careful engineering, planning, design, construction, and operation r 1 that the most worthwhile. A more detailed look also shows the optimum economic combination depends on a large number of factors, including 1 such important ones as load density,,area A covered, total load to be served,. and rate of load growth, , it to^ leaning p delivery The primary purpose of power order system in resent determine an orderly expansion of the p { to meet future demand and to forecast budget needs for j lannin s At the distribution lever the load financial p 9 'J^ ft t, CITY OIL DENTON UTILI'TIEB 'n'II l1 3-21 k } a . , I i- density is not the same for all load areas. A substation - serving a high load density area must have a smaller service area than a substation serving a lower density area. If the 1 service areas load is not as projected, the substations may The former involves financial be sized too big or too small. difficulties, but the latter can be expensive to correct if the substation runs out of capacity. Distribution s' { substations are designed to provide reliable, but economical I 4 p In reference service under normal and abnormal conditions to Table 3.7, each substation is assigned a firm capehity rating and an emergency rating using industry guidelines. The design criteria requires corrective action be taken if, rot -J any single element is lost (single contingency) X/ e if in a duplexed station one of the transforms ;e ,`11 exampl ~I carrying 20 megawatts load fails under normal load^ transformer in the station yard: I'^hi M~ adjacent conditions, the j' shall carry approximately its load plus one third. of the ! tolled transformer load (20 + 7.33 27.33 MW) and the rest . of the load (14.66 ttW) shall be carried by the nearby r substations via main distribution !ceder lines which alsov t have normal and maximum loading capabilities Table 3.7 shows two sets of numbers in the form of A/9, The letter "A" represents the substation projected normal > load, and letter "5" is the prejoct.ed load during ayetas summer peak, tinder columns 2, 31 40 and 6, the sets of ` errs or NNTON UTr MIG ; 3-22 ,Y. r• :1 ~C } 'I I i tyY .i 5 i TABLE 3.7 j SUBSTATIONS HISTORICAL S PROJECTED PEAK DEMAND (MIN) NORTH DENTON SYSTEM° . YEAR SPENCER KINOSROW HICKORY LOCUST LAKES AIRPORT POCKRUS ARCO NORTH PEAK L; 27/27 27120 13!13 18116 D 010 010 161 1990 49!47 ~ 36132 33127 1991 47!44 36132 33127 27127 2042 16/16 20119 0/0 010 187 ~ . 17!17 20!'20 717 N 064 ISO 2 1992 43!41 31126 33127 27 /2 t 6!Z2 1993 43!41 30127 31126 26126 2912$ 16116 21121 816 010 191 W 1964 43141 30/27 31!23 29129 29123 19!19 22122 916 0!0 164 1906 43141 30127 32126 29129 30124 20!20 23123 919 010 199 1996 44(42 30127 30124 29129 30126 23123 D 24124 10110 010 204, 1997 44!42 31126 30124 29129 31/26 24124 29126 11111 010 206 i 1996 44142 31128 32!26 26126 32127 24124 29176 12112 0 213 ly,, 1969 44(42 33130 3286 26126 33178 208 26176 Una om 2i6 2000 44142 30/27 31126 28176 29173 26174 27/27 14114 1111 N 2113 ' NOMIAL 44 34 32 32 36 20 40 40 LOAM 98.8 44.6 44.8 "A 80A 29 N 90 ~ 414.E LOADW f WWATWI LOADH MA"M LOAD WNW 9UMMlR NU Det1U"LJbI r' a LOAMANUMO414MPM 0=0 NSWW L,_ _ A 5 1 I 1 it 1 1 numbers A/8 are not equal duo to the fact that the hourly electric load values at these substations during normal loads f i do not occur at the same time as the summer peak values. J The short range substation plan rtiquires the need to build a new substation at ARCO site in order to overcome the t overloaded substation at Kingsrow (35 MW) whsro normal load : ~I is 32 MW4 The impact of an overloaded substation leads to 3+ 3 pan poor voltage and poor quality of service. v• e w. 3,5 SUMMARY OF RESULTS The total system energy input requirements are forecast to grow at an equivalent compound annual rate of approximately 2.2 percent for the period 1991-2000. The annual system peak load is forecast to grow at a compound annual rate of 2.0t. At the predicted growth rate, total ' r system input energy requirements will total 1,002,636:MWH by, " 2000, compared to the 1990 level of 813,644 11WH. ' Total " Sh9 Industrial and commercial sales are forecast to grog at an j equivalent annual rate of 2.61. Total residential silos Ord x&~ j forecast to grow at a compound rate of 2471, ,y. f i i r, r ~ F . a t: f CITY Of DENTON UM M18 3-24 v, z. i :11 SECTION 4 WATER UTILITY .I~ ra J ' i} e~. ' i~ s tad , r 4'L i JANUARY 1991 V uU OF DENTON NICIPAL UTILITY DEPARTMENT DENTON, TLXA3 v ti " I SECTION 9 WATER UTILITY fi• 4.1 INTRODUCTION In comparing the historical data in this forecast Co a? t historical data in past forecast some discrepancies will be found. In the past the forecast were based on calendar year data, while the 1991 forecast is based on fiscal year data. } The change was made to take advantage of the most recent-date I, instead of having to estimate the end of the calendar year, The City of Denton currently supplies water to most of ey. its citizens, a few persons outside the City limits, to i, Corinth and to Lake Cities Municipal Utilities Authority' (LCMUA). Some persons within the City limits are served by private wells. . The water contract with LCMUA will and when they obtain another source of water supply or in 1996, whichever occurs first. It is anticipated that LCMUA will obtain r service from UTRWD upon the completion of the lake Rey Robert Water Treatment facility. It is also anticipated that the r' City of Corinth will obtain service from UTRWD. j aF' Denton desires to make service available to all citizens, yT. Residents served by wells are usually located in areas of very CITY OF DENTON UTILITIES ~ z f low density or that have been newly annexed. Service for these areas is very expensive and requires a substantial amount of time to develop. Land development is most often the E mechanism by which the distribution system is expanded into these areas. The number of customers by general rate classification Is shown in Table 4.1. The normal annual demand by general rate classification is shown in Table 44. it should be noted when reviewing Tables 4.1 and 4.2 that most j _ apartment complexes are metered by just one meter and are { categorized in the commercial rate class even though their used " rKa i resembles a residential unit. Figure 4.1 shows the risk v~ analysis for the annual water demand. Figure 4,2 shows ;i historical forecast trends for annual treated water use for the past five years. Like the population trends the, +.reated annual water use forecast trends have decreased steadily since 1985. ,14 The water utility system consists of three basic componentst - Water Supply Water Treatment 7 Water Distribution The design criteria for each differs depending upon their l most critical element of demand. These elements are related to each other by means of multipliers or ratios. E k`' CITY OF DENTON UTILITIES 4-2 ti i i L: TABLE 4.1 ` CITY OF DENTON ' r HISTORICAL AND PROJECTED NUMBER OF WATER CUSTOMERS RESIDENTIAL COMMERCIAL OOVERNMENTAL TOTAL YEAR CUSTOMERS CUSTOMERS CUSTOMERS CUSTOMERS a ZS'' - HISTORICAL 1963 12,031 1,943 63 14,001 194 121789 2,140 83 141"1 i I 1916 13,1104 2,047 as 111"4 3 r g 1110 13,709 2,399 81 1!1!10 ! gf'' ;'i 1N7 13,111 2,401 N 41,110 r t n 1910 1440" 2,442 108 1>',i33 a. 1~p 14193 2,34 111 11,013 i i " 1990 14,242 2,293 121 19,"11 - PROJECTED 1991 14,310 2,273 121 18,112 ° ~4 w 1902 14,391 2,201 129 11,101 , 1913 14,604 21304 130 19,NJ 194 14,721 2,339 132 1Y,112 19/9 1$,016 2,391 136 1x,101 ~ 1199 111491 2,411 1!1 11,0!3 1917 18,143 2,40 142 114!9 'I 1901 14,297 2101 141 11,001 9 1991 19,191 2,974 1" loom I 2000 111119 2.744 In 20,013 G 'E_; i t • Mfg E CITY OF DENTON UTILITIES ~ 4-3 E I , i 1 i ir- TABLE 4.2 CITY OF DENTON HISTORICAL AND PROJECTED CONSUMPTION BY GENERAL RATE CLASS RESIDENTIAL COMMERCIAL GOVERNMENTAL TOTAL CONSUMPTION CONSUMPTION CONSUMPTION CONSUMPTION YEAR (MGD) (MOD) (MOD) ( - HISTORICAL - 0.01 6.90 1983 3.37 3.61 ; 4.22 4.00 0.04 6.26 rv; 1966 4.28 4.49 0.17 6.06 . t 986 4.66 6.06 0.19 0.90 1997 4.30 6.67 0.20 10.07 - 0.26 10.8$ 1960 4.67 6.60 1469 3.83 4.97 0.19 8.09 1900 4.112 6.64 0.27 9.49 - PROJECTED a 1 0.26 10.29 1991 4.62 6.69 1902 4.64 6.66 0.26 10.34 4,58 6.69 0.26 10.42 1993 4 6.66 0.26 10.60 1994 10.13 1996 4,70 8.91 0.28 1096 4.68 6A8 0.27 14110 1047 6.00 6.11 0,26 11.38 1906 6.13 6.27 0.28 11.68 8 1999 6.26 6.43 0.29 14.98 l 1000 6.40 4.60 0.30 12.30 I r.' NOTE: CONSUMPTION IS THAT AMOUNT OF WATER ACTUALLY USED BY THE CUSTOMER AS DETERMINED BY CUSTOMER METER READINGS. IT DOES NOT INCLUDE UNACCOUNTED FOR USES SUCH AS LEAKS, a FIREFIGHTING, ECT,. i G CITY OF DENTON UTILITIES 4-4 i ~ 30 F1S3hL (iAl i ink N LONS PER OAY1 u►1 rzED _ i ; NO YfM ACTUAL NFII5f0 's y 1980 9,33 7.68 8,70 9.49 26,30" 1981 6.97 8.49 7.24 10.25 38,35" ; j 1982 8.80 8.75 7.46 10.57 85.31" 25 . 1983 8.54 8.81 7,61 10,64 23.48" , 1964 10.16 8,90 7.59 10.74 32.1517 " " DROUCHi M=AR 1985 9,84 9.69 8.43 11.94 09:1715" 9, ' : 1986 9.72 10.52 8.97 12.71 45.84" 27" ANNUAL RAINFALL 1987 9.74 10,75 9.17 12.99 35.89" 1988 11.23 10.95 9.34 1323 38.03" 11989 10.12 11.15 9.51 13.47 41.02" Z 1990 11.29 11.33 9.66 13.88 38,38" NORMAL YEAR -PROJECTED- 37" ANNUAL RAII~ ! 11.38 9.70 19.75 t ..............i.. 20 1991 ; 1992 11.45 9.76 13.63 1993 11,54 9.84 13,93 1994 11,71 9.98 14.14 1995 N A 11.99 10.22 14,48 2000 13.62 11.81 18.44 N Z 2005 15.49 13.21 18,71 2010 17,82 15.02 21.28 b 15 2015 20,06 17.10 24.22 2020 22.83 19.46 27.57 t RE-1 YEAR 48" ANNUAL RAINFALL ; , FIGURE 4.1 c1TY or DE MN 1113TORICAL 17A11 WSTONCAL AND PROJZCI'N1! ANNUAL TREATED **T$'!t 294U1RL'!m'!'9 S 1980 1985 1990 1995 2000 2005 2010 2015 2024 F YEAR ,I E , i 1 30 j 1485 1987 1988 1989 1990 1991 FORECAST FORECAST FORECAST FORECAST FORECAST FORECAST 23 T 20 i o` f 15 i...............;.............. W 10 .r. , FIGURE , 4.2 MYY r CM'1t~'OF DAN ,t fF:, Ni9'~ORICJIL x~ • • HISTORICAL TREAM AKMJAL WATER VsE TRgATED AN DAY. ; i 11AT1CR USZ ih 1980 1985 1990 1995 2000 2003 2010 2015 ;200 YEAR t . ~ r p . a utilities is the made by water one common error ` wired for each the amount of water req assumption that Water i stem is the same. This is not so. component of the sY stem- is either consumed, lost or wasted throughout the sY stem between the some leaks exist in the transmission water is Bused at the plant 1 . supply and the treatment plant filters and is wasted when sedimentation basins for cleaning are drained for cleaning. Leaks and main breaks are the unmetered uses such as fire y well as J source of losses as projected These differences are considered in the y vr, fighting stem water requirements for each Portion of the $Y ~'r~. 4.2 WATER SUPPLY 1 -k often referred to as raw { The untreated water supply is lakes 4nd rivers) r water. The source ie either surface water or ground water (wells)- Denton has both. Lake Lewisville has served as Denton's primary source of water since 1957. Denton owns the right to 4.82 percent of lake Lewisville's 90.2 MG9 dependable yte share , which gives of the treeted lus Denton s Denton rights to 4,34 MGD p „t wastewater effluent credits. filling in 1987. Denton owns the zry Lake Ray Roberts began i i hts to 2b percent of the project incremental dependable i r g f CITY OF DENTON UTILITIES 1 4-7 i 1 1 _ yield. The total project incremental dependable yield is estimated to be 76 MGD when Lake Ray Roberts is full. This will provide Denton with rights to 19.8 MGD plus treated wastewater effluent credits from Gainesville. ~ Denton has purchased a portion of their supply from Dallas. This amount was reduced in 1989 to 0.5 MGD for "readiness to serve" requirements when Lake Ray Roberts retained sufficient water to provide all of Denton's € - requirements. Denton is pursuing additional water supply from E the Cooper Reservoir in East Texas. If obtained this supply µF will be available for only fifty years. Denton utilizes Its well system as a contingency supply in the event of an unusual - shortage such as a severe drought. The Texas Water Commission ; ,1 4 rLc, } has identified the ground water in this area as a critical ground water supply. The ground water level is falling and the supply is subject to contamination from surface sources. This is due to a large number of wells withdrawing from the supply and abandoned wells improperly closed which provide a point of entry for surface contaminants, Water supply requirements care typically expressed as an average day in terms of million gallons per day. The water E a supply requirements for Denton, Corinth and LCMUA are , presented in Table 4.3. The available water supply is E compared to water supply requirements for Denton only in CITY OF DENTON UTILITIES 4-8 I s _y I . 1 I Figure 4.3A, and to the water supply requirements for Denton and Its current obligations in Figure 4.3B. Denton's current water supply should suffice until after the year 2014. Denton can postpone planning for future water supply sources until the year 2000. This will provide a 14 year lead time to analyze, locate, obtain, design and construct a new supply facility. After this 14 year lead I time, Denton could relinquish this responsibility to the r' UTRWD. Denton would need to utilize the Dallas contract for water supply until a new facility is in service. ~t 1. ~J Denton should be open to any opportunity to participate' in the development of future water supply sources. The projection of water supply requirements is very long term" Denton has demonstrated the potential for rapid growth. The area is already well developed and Denton must compete with several growing cities. Environmental concerns and property rights will further complicate an already difficult process. J Though currently projected over a long term, this is one area 1 where Denton must either decide to control their own future or to subject themselves to the mercy of other cities. 4 4.3 WATER TREATMENT PLANT Denton has one existing water treatment plant. Although j it has not officially been named, it is often referred to as i CITY OF DENTON UTILITIES 4-9 f I TABLE 4.3 CITIES OF DENTON, CORINTH, & LCMUA HISTORICAL AND PROJECTED ANNUAL RAW WATER REQUIREMENTS FLOW (MILLION GALLONS PER DAY) _ YEAR DENTON CORINTH LCMUA TOTAL ESTIMATED ESTIMATED ESTIMATED ACTUAL 1960 9.21 0.15 9.36 1981 7.01 0.15 7.15 1992 6,74 0.15 6.89 1963 8.70 0.19 NIA 8.90 y, 1964 10.02 0.25 I 10.27 1985 9.90 0.20 10.09 19" 9.96 o.34 10.30 1967 1013 0.46 0.51 11.15 1 .J 19e6 11.69 0.60 0.27 lies w y 19e9 10.31 0,64 0.36 1120 , 1900 11.60 0.54 0.40 1264 j '6 sg - PROJECTED ~ u, , YEAR DENTON CORINTH LCMUA TOTAL.; NORMAtDROUGHT NORMALOROUGHT NORMAL DROUGHT NORMALOROUGHT. 1991 11.56 13.96 0137 0.69 0.49 0.59 4162 19.24 -j 1992 11.63 14.04 a80 0,73 0.55 0.66 Ill's fb.43 1993 11.72 14.18 0.63 0.76 0.62 0.76 1191 16,66 ] 1994 11.09 14.36 0.65 0.79 0,66 0.60 1320 15.04 1995 1116 16.08 0.69 0.64 0170 0.65 13.07 16.39 • 1 2000 13.63 1610 0,66 1107 0.09 1.o6 15.60 18,84 2008 15.73 19.00 1.00 1.21 t.o8 1.30 17.81 21.61 • 2010 17.90 21.e2 1.09 1.31 1112 1.36 20.11 24.26 s-' • , 2015 20.37 24.60 1.16 1.43 1.17 1.41 2172 21.44 2120 23.19 28.00 128 1.65 1.21 1,46 26.68 71.01 ' • 8YEARINCREMENT9 CITY Of DENTON UTILITIES i 4-10 1 mwi 35 FIGURE 4.3A AVAII.ABLE HATER SUPPLY POSSIBLE PURCHASE: VS : FROM DALLAS 30 PROJECTED WATER REQUIREMENTS ; , . FOR DENTON & ITS CUSTOMER CITIES • HISTORICAL RAW AVAILABLE i HATER REQUIREONTS WATER 25 ; ti..... } 120 ; C........ 19.78 MGD a 28X OF THE ' 1 , INCREMENTAL PROJECT YIELD j~ Z DROUGHT ' REQUIREMENTS FROM LAKE RAY ROBERTS 15 27" ANNUA rd RAINFALL NORMAL y REQUIREMENTS 37„ ANNUAL i 0.5 MGD READINESS RAI"ALL ,d 10~~....; A.........:............. TO SERVE , a' =U PURCHASE /FROM DALLAS 10 , ~ ' DENTON + hAINtSVtLl' k 4. 4.34 MOD w 4.8165% OF THE i EMUEN'j1 CREDITS DEPENDABLE YIELD FROM c LAKE LEIIISVILLE ' 1980 1985 1990 1995 2000 2003 2010 2015 ZOxO YEAR . t.; z 35 FIGURE 4.3H AVAILABLE WATER SUPPLY vs 30 PROJECTED WATER REQUIREMENTS ' ' pO3SIDLS PURCHASE FOR DENTON ONLY FROM DALLAS • HISTORICAL RAW AVAILABLE WATER REQU581lENTS WATER SUPPLY 25 0 20 p 19.76 MGD 20% OF THE DROUGHT N Z REQUIRBII1311T5 -iNCREMENTAL PROJECT YIELD w 15 " 'FROM LAKE RAY ROBERTS'• rG RAINFALL NORMAL REQUIREMENTS : 0.5 MGD 'rb 37" ANNUAL READINESS C 10 .....~.,i RAINFALL... ~iu ........TO SERVE c~ PURCHASE 1.11 FROM DALLAS u....... Y.•... H.i1.r~Y'1 1 , DEMON GAIN ItSVII].E ' 4.34 MGD . 4.8165% OF THE I DEPENDABLE YIELD MOM i EFFL CRT~D1I'3 LAKE LXIIISVILLB 1980 1985 1990 1995 2000 2005 2010 2di5 ` 2024; T^` YEAR Y~ i f I 1 the Spencer Water Treatment Plant. The plant was expanded to 30 MGD in 1989. A pump replacement project is underway which will increase the raw water pump station capacity to 32 MGD. r The interior of the two raw water transmission mains have i been encrusted with deposits from Lake Lewisville. The deposits act as a flow restriction and thus reduce the capacity of the line. The utility plans to clean these lines to restore their capacity to 34 MGD. This process is commonly , f referred to as pigging. J Until the pump replacement and transmission main pigging projects are complete, the plant can only produce a maximum of .I about 26 MGD; perhaps 28 MGD under ideal conditions. Water treatment plant facilities are sized to meet tNe peak day requirements. The peak day is the average flow for r; one day of the year that has the highest demand. This day - generally occurs during the month of August. Drought years generate a demand which is about seventeen (17) percent greater than normal rainfall years. The normal peak day demand for Denton is approximately y 1.95 times the average day demand for normal rainfall years• i (normal average day X 1.95 a normal peak day). However, the j drought peak day demand for Denton is approximately 1.79 times CITY OF DENTON UTIUTIES E 1 4-13 . 4 'F E i the drought average day demand for drought years (drought average day X 1.79 = drought peak day). The peak day demands for Corinth and LCMUA is believed to be approximately 2.10 times their average day demands, but the customer cities meters are not read on a daily basis so it is not known exactly what their peak day demands are. The customer cities do have flow controllers which limit the amount of water which can be drawn from Denton. The requested settings on these flow controllers is used to establish the peak day " ° requirements for these cities. Table 4.4 provides the peak day treated requirements for Denton, Corinth and LCMUA. Figure 4.4 provides a comparison of peak day normal and drought year ` requirements vs. water treatment plant facility capacities forDenton only. Figure 4.5 shows the same comparison of peak day i Denton only. Figure 4.5 shows the same comparison of peak day normal and drought year requirements vs, water treatment plant facility capacities for Denton and its present customer cities. Figure 4.6 again shows a similar comparison but Includes Denton and the participating members of UTRWD. Denton Is projected to need additional capacity by 1996 under Its current service obligations. The additional capacity will be provided by a new water treatment plant at Lake Ray Roberts. A site has been acquired, a preliminary engineering report has been completed, and the detailed design Y, is nearing completion. Design for the booster pump station has been initiated and is nearing completion. E CITY OF DENTON UTIUTIES 4-14 i T r 1 TABLE 4.4 CITIES OF DENTON, CORINTH9 & LCMUA HISTORICAL AND PROJECTED j - PEAK DAY REQUIREMENTS FLOW (MILLION GALLONS PER DAY) YEAR DENTON CORINTH LCMUA TOTAL I ESTIMATED ESTIMATED ESTIMATED ACTUAL ! I _ I 1980 16.72 0.35 17.07 14.65 0.35 15.20 1981 14.93 - 1982 11'56 0.35 N/A 17.37 1983 16,92 0.45 1964 19.68 0.56 20.41 20.13 19.48 0.65 1 1965 21.47 1,00 0.30 2277, ; ~i 1966 1967 22.12 1.00 0.49 29.61 196 0.28 27.47 `I 8 21.66 1,25 0.74 20.72 i e L.I 1969 19.17 12,25 0,30 2241 , 1990 20.83 1.25 s: PROJECTED +t LCMUA TOTAL YEAR DENTON CORINTH f f~ NORMAL DROUGHT NORMAROUGHT NORMAJDROUGHT NORMALD,ROUGF{L UD 0.48 23.61 27.44 1991 2206 2S7s 1•~ i Z 1992 22,21 25.55 1.25 0,54 2400 27.64 0.61 24.29. 21.96 1993 22.38 26.05 1.30 0.65 24.72 26.44 1994 22.72 26.44 1.75 _ 1995 23,26 27.06 1.40 0.69 25.35 19.17 1998 23.61 21.75 1.60 0,74 26.0e 29.99 € 4997 24.45 28.48 1.60 0.79 24.64 30.65 0.02 27.61 21.72 j 1998 26.09 29,20 1.70 1999 25.74 29.96 1.75 0.85 20.34 32 56 2000 26.41 30.75 1.8U ON 29.09 33.47 • 1.06 33.16 30.06 6 7o.os 34,96 205 ' 1.11 37.% 43.16 1E 2010 34.18 39.80 225 I , * 261 2015 38.91 45,29 2.45 1.15 4 b.. 2020 44.29 +30.9 2.85 4.19 42.11 64.83 1 ~ . • r 5YEARINCREMENT9 CITY OF DENTON UTILITIES i 4-15 ,r i l i/t'1R . 40 , PROPOSED COMPLETION OF l LAKE RAY ROBERTS i i0 uGD EXPANSION WATER TREATMENT PLANT LAKE RAY ROBERTS SO MGD EXPANSION TO 40 MGD MAY 1093 ' ..................I....... 35 , 6 MGD EXPANSION SPENCER PLANT ; TO 30 HGD } , 30 „ .......r..... O \ ~r pm DAY , DROUGHT YEAR r 2710 AMNAL RAIIiFALL :F SPENCER pLlINT.. 25 24 YGD . i t r , vf, PEAK DAY b : I NORMAL Y RkW*" ,.........,...,..u..•...........u•ur•u•....,. 20............. ' • . . t C I y ' ...r FYGURT '4.4 ~~;f 15 i............................... i PSAiC DAY. . i ' T~ I + CON>ti1Ti0it~ I KATL~R 71L1~ATYIlI~'1` PUNT , O■ NU~ of TATKR RATTIONINO !x~~7ao CxxAPAN~Ni~~*ICp 1~R~R► tip, ' 1imcn n0119 Y 'VA, YT'Y+i 10 1990 1995 `240Q n r 1980 1986 YEAR .`.0 _ _ _~..nrwww.r.w.a.wv+. F~:wy.a.^uF Vwoi':~w.►MrR.'n'"' t ' ~ J.: L s l 40 PROPOSED COMPLETION OF I 10 MGD EXPANSION LAKE RAY ROBERTS LAKE RAY ROBERTS WATER TREATMENT PLANT TO 40 MGD 10 MGD EXPANSION MAY 1993 35 ; 6 NG6 EXPANSION ` SPENCER PLANT PEAK TO 30 LIGD o:..........: j 30 .......................Y 0 Z DROUGHT YEAR 2r ANNUAL RAWALL SPENCER A i 25 PLANT................... • { x 24 MGD PBAE DAY r. NoMIAL YEAR ' 37" ANNUAL RAINFALL Lid 20 .......i . ~ : a I FYGUM.:4..5 1'S + ...................f.................................. 4/i M PEAK DAY . COND1" oft YN. " I MATER TREATbmt PLANT RISK OF *ATER RATIONING ? ~APAC:7~ FOii • • HisTORICAL nowsi DIMN & ]T ' citTS~blacR Cl?lZ8 10 1980 1985 1990 199'S 2000 { REAR a° . nth c r ky. i Fns' { .I I r, ' u r 40 PROPOSED COMPLETION OF I 10 MGD EXPANSION LAKE RAY ROBERTS LAKE RAY ROBERTS SEATER TREATMENT PLANT ' TO 40 MGD 10 MGD EXPANSION MAY 1893 35 L ; 6 116D EXPANSION SPENCER PLANT + i ? TO 30 MGD 30 SPENCER f nr PLANT y . p t PEAK DAY h 1 Nord" YUR rh i 37" ANNUAL RAWAIL • PEAK DAY 20 DRovaaT I?Alt d ~ t37" ANNUAL RAfN]rAtJ. ti FIGURE 4.6' 15 r r lb"K Di* coN~rttoias w~s. 1 r, ,r WA'1'ER'7`R A$'i T lT r wAdty "it r » or xAm itinomo aat orit U rrD ~ j 10 1980 1985 1990 1995 2bb4 pMK ~j YEAR I -A ' . , 4.4 •r jr _ '4✓ i I The initial plant will have a capacity of 10 MGD. This should serve Denton's needs until about 2015. The plant will be designed to accommodate incremental expansions of 10 MGD. More than one 10 MGD expansion or treatment train can be constructed at one time. 4.4 WATER DISTRIBUTION SYSTEM 4.4.1 Introduction The water distribution system consists of several major components: { k Ground Storage d , - High Service Pumps Y . ~F Mains ^~7 Pressure Planes ~ Booster Pumps - Pressure Regulating Valves " - Elevated Storage These elements must be designed to provide a certain amount of flexibility. They must provide for refilling tanks, average days, peak days, peak hours and emergency conditions, such as ;I fire flows. , r The Environmental Protection Agency, the Texas Departmont J of Health and the State Board of insurance are the agencies which establish most of the regulations with which Denton must .i ? - CITY Of DENTON UTILITIES 4-19 . 111 i ~ .411Raf~JQ i .tsy(ejI - comply. Only a 'general discussion of needed capital I improvements is provided herein. Design details are addressed in master plans. I meters. Some of the Most of the demand is measured by demand is unaccounted for. This includes water for leaks, ' The utility department is main breaks and fire fighting. working to gather and organize data necessary to conduct a to manage YzM water audit. It is anticipated that this will help #4 able T , our repair and maintenance activities more efficiently allons 4.5 provides Denton's annual water demand in terms of g cd It has been categorized by per capita per day (gP )residential, commercial and governmental demandu. ^ Many cities use the gpcd indicator as a means of i i comparing water us9 with other cities, Unfortunately there !s a fallacy in this type of comparison. The per capita water from city to city. Types of use can vary tremendously Industry, industry/residential ratio, personal income, ` climate, etc. all have an impact upon water use habits. The 4 Texas Department of Health recognizes the wide range of water r use patterns among Texas cities. The indicator should only be used for tracking and comparing Denton's particular water use habits. This should help improve the ability to make projections and to develop rate structures. I CfTY OF DENTON U7 MIS 1 e ' 4-20 ; M1~ LLLL 1 TABLE 4.5 CITY OF DENTON HISTORICAL AND PROJECTED CUSTOMER DEMAND BY GENERAL RATE CLASS ' RESIDENTLI►L COMMERCIAL. GOVERNMENTAL TWAL h" OPCD) (OPCO) YEAR (QPCD) (GPCD) - HISTORICAL - 0.2 146.0 ,a 1061 64.6 681 0.7 181.0 5io 1Dµ 77.b 111.0 2.0, ;y 712 1916 70,6 7bA 3.0 163.7 , 1066 74.4 183.1 61.7 3A 1967 08.1 167.0 ' 1906 b9.7 63.b 64.6 00.0 2.8 14bs J 1909 144 6 ` 1990 09.6 7911 3.0 - PROJECTED - 70.0 3.6 147.4 1091 64 64.8 .9 79.0 3.6 147.4 r T' 1993 $4.9 78.9 3.6 117A 79.0 3.6 141,6 1994 64.6 76.9 3.5 147,1 it" 1906 N.4 79.0 3.6 141A a'9 3.1 147.4 1997 64'9 9.0 3.6 141A 199b 64.9 3.6 147.4 1999 M.9 4000 $4.6 ?0.0 3.4 141's OPCD - GALLONS PER CAPITA PER DAY 1.~T CITY OF DENTON UTILITIES 4-21 I i I ~Ir gPVI'r~ 1 4.4.2 Mains E _ Denton maintains approximately 1.57 million linear feet (295 miles) of water distribution mains ranging in size from 1 to 42 inches in diameter. Approximately 26 miles or 9 percent E of the water line are less than 6 inches in diameter, These lines tend to be very maintenance intensive and are considered to be substandard. Table 4.6 provides a breakdown of line length by line size. F" Water mains are designed to carry either the peak hour demand with a minimum d pressure of 35 psi or the :peak day demand plus fire flow with a minimum pressure of 20 psi. The - _1 peak hour demand for Denton is 3.44 times the average day. demand and the peak hour demand for Corinth and LCMUA from Denton is limited by the flow controler settings. The normal , r peak day demand for Denton is approximately 1.95 times the , 4 average day demand for normal rainfall years (normal average _1 day X 1.95 normal peak days However, the drought peak day i - demand for Denton is approximately 1.79 times the drought ` average day demand for drought years (drought average Cay X 1.79 drought peak day). y , } As Denton grows, the existing system must be upgraded to ` provide for transportation of treated water from the plant and storage facilities through the existing system and into the newly developed areas. An analysis of there conditions is a j r CITY OF DENTON MMES j r` 4-22 h R:tli4.p~ i i TABLE 4.6 CITY OF DENTON WATER MAIN SIZE AND LENGTH 1 Y. i DIAMETER LINEAR PERCENT ^ Y. (INCHES) FEET MILES OF T07AL , 1 91450 1.79 0.61 is 1,000 0.19 0.06 1'- 2,200 0.42 0.14 2 63,160 15.75 6.34 4. , 4 44,275 0.39 2.84 ' a 70080 147.65 50.02. J 8 279,400 52.92 17.94 10 290070 5.51 1.97 12 141,075 26.71 9.00 + 14 27,905 6.29 1.79; 16 100,790 19.09 6.47 W 3. 16 13,865 2.63 O.e9 20 201670 3.91 1.33 24 40600 0.66 029 ` r 27 31030 0.57 0.19 30 11,970 2.27 0.77 y 36 41330 0.92 0.26 42 1,659 0.91 0.11 rt , j TOTAL 1,837,400 29410 100.00 NOTE: BASED ON YANDELL i HILLER WATER DISTRIBUTION SYSTEM r'4 MAP AS OF DECEMBER 1990 CITY OF DENTON UTILITIES ii I 'y 4 `23 M r ww+ i I i very complicated procedure and is beyond the scope of this forecast. A detailed analysis is provided in the water , distibution system master plan. 4.4.3 Storage The Texas Department of Health (TDH) and the State Board ! of Insurance (SB1) have established criteria for ground and elevated storage. These criteria address volume requirements, 3 ` only. The layout of the distribution system, the location of storage facilities and the interaction with high service and booster pumps affects the amount of storage necessary for the most efficient and reliable operation of the system. , GROUND STORAGE i,. Denton currently has seven million gallons of clea voll. capacity at the water treatment plant, two million gallons at McKenna Park and another three million gallons being designed ~ for the new Hartlee Field Road Booster Pump Station., The two million gallon McKenna Park tank is a dual facility. It serves as ground storage for the upper plane and elevated f storage for the lower plane.+ As the population in the upper plane increases then so will the demand and the total storage requirements. The amount of the McKenna Perk tank that is dedicated as ground CITY OF DENTON UTIUTIES 1', 1 4-24 1 storage for the upper plane will increase. The amount i available as elevated storage for the lower plane will decrease. As a result, the upper plane will not require additional ground storage i Fr #e~ `E Table 4.7 provides the ground storage requirements for f 4i Denton. These are based upon the general volume requirements f of the TDH and SBI discussed earlier. These are minimum requirements. For operational requirements, please refer to the master plan ELEVATED STORAGE _ The TDH requires that each pressure plane serving more`c than 2500 connections shall have elevated storage. The upper { S,' s plane has none. Table 4.8 provides the elevated storage requirements 'for Denton. The upper plane will require elevated storage by the J year 2000. The lower plane will require an additional two million gallons elevated storage in 1991. The master plan provides more exact detail. x i Iu ~`Al ~ a I r ` CITY OF DENTON UTIUTIE9 4 -•25 • raiaeu~ J r I TABLE 4.7 CITY OF DENTON GROUND STORAGE REQUIREMENTS LOWER PLANE EXCESS/ YEAR EXISTING Sol TDH PROPOSED SHORTAGES 1.88 1990 1.00 8.86 4.54 d 3.00 ,•t 1995 10.00 9.20 4.67 040 2000 12.00 10.30 5.26 2.00 1.70 0.0 2005 14.00 11.57 5.94 0.43 2.00 2010 14.00 13.02 6.68 0.96 UPPER PLANE EXCESS/ .t YEAR EXISTING SBI TDH PROPOSED SHORTAGES W. 1990 1.00 0.15 0.09 0.65 ` 0.00 1996 1.00 0.33 0.22 0.87 ' ! 0.00 ` I,.. 0.53 0.27 0.47 20000.47 0.00 l . 2005 1.00 0.74 0.38 0.26 0.00 2010 1.00 0.99 0.61 0.01 TOTAL STORAGE REQUIRED EXCESS/ YEAR EXISTING SBI TDH PROPOSED SHORTAGES 1950 10.38 12.78 4.67 6.79 6.00 -I 1996 16.36 13.60 4.80 2 11.22 .00 12.47 2000 17.38 16.35 5.66 2.00 2005 20.36 17.44 6.32 13.61 ' . 1.00 ` 2010 21.36 19.86 7.19 13.72 Y QUANTITIES ARE IN MILLIONS OF GALLONS ' ` CITY OF DENTON UTIUTIES ✓ 4-26 ..7 r-4. IPA. r u r TABLE &1-8 CITY OF DENTON G 4< ELEVATED STORAGE 4 t F v LOWER PLANE t EXCESS/ e G_ES SBI TDH PROPOSED SHORTAGES YEAR EXISTING ! 1040 3.80 2r27 3.36 2.00 " _ 1.52 1043 638 3.84 2.34 0.00 r 1,06 2000 5.36 4.30 2.84 0.00 a iw 0.54 4.82 2.47 2003 5.38 1.00 a 2010 3.34 0.03 a ; 6.36 5.43 ?r { UPPER PLANE EXCES9t SHORTAGES` I TOH PROPOSED _ YEAR EXISTING SBI i . -0.06 a 0.04 Y j 1000 0.00 0.08 1.00 J 0.87 ` ~ ~Y 1405 1.00 0.13 0.11 0.00 0.80 , 2000 1.00 0.22 0.14 0100 1 2005 1.00 0.31 0.10 0.00 ' 4 0.78 r 11.00 0.41 0.25 2010 ; CUANTITIES ARE M MILLIONS OF GALLONS „ N I I i ..1 ~l; G 3d a i' 1 yeM1~ r - CITY OF DENTON UTILITIES 4-27 r lrr Wr y {R o yIRRF ,v } Y t + . map] a~ s 7 SECTION 5 STEWATER UTILITY WA ~ Y rl e it M1~ 4I ~ a 1, J 1 Y ! ~ ' JANUARY 1991 r S, CI'CY OF DENTON DEPARTMEN'C WN1CiPAL UT s PTY' sr d d. , w F.1`y y, r 1 .,r ~ irn'rfC, i" 1 1 ~ b 1 d0"j + SECTIQt~ WSEAT n; f ;N 5.1 INTRODUCTION y The wastewater treatment facility consists of four basic componentel sw , - - Wastewater Collection System i. , Wastewater Treatment Plant Wastewater Disposal L -t Sludge Disposal - The collection system consists of gravity sewer mains, lift the collect lines stations and force mains. The gravity ! 1 individual customer discharges and transports them to the i plant. These lines are not designed to flow full. P-.assure t} . > could cause these flows to back into residences. Additional r flow is sometimes picked up via inflow/infiltration Inflow is rainwater entering the system through manhole cover pickholes, broken pipes and cracks. Infiltration is flow " entering cracks and joints due to the groundwater level being `j higher than the pipe. -,k Lift stations and force mains are constructed when flow cannot continue by gravity. This usually occurs in low lying areas or where the line becomes extremely deep. After many hours and sometimes days in the collection system, the sewage eventually transported to the treatment plant. Denton's i s CITY OF DENTON UTKMES r,} lr 1{ 1 wool r plant treats the wastewater by the waste activated sludge r, process. The liquid is separated from the solids and treated by settling, aeration, filtration and disinfection. The sludge is treated biologically by aerobic and anaerobic digestion.. The treated waste products are then disposed of. 41- The v i liquid is discharged to Pecan Creek. This effluent must meet very stringent water quality standards. The ~II digested sludge is either applied to open land by injection or 1,+, a dried and then spread on open land at the plant site and/or _i used in various municipal use projects, This process must also be accomplished in accordance within strict standards. The Texas Water Commission (TWC) and the Environmental Protection Agency (EPA) are the regulatory agencies which r; govern the treatment of wastewater in Texas. •TWC's rules are „ -I published in the Texas Administrative Code (TAC). In part the r•` TAC readsi "Whenever flow measurements for any sewage treatment facility in the State reaches 75 percent of the permitted average daily flow for three consecutive months, the permittee must initiate engineering and financial planning for `la expansion and/or upgrading of the wastewater treatment and/or k collection facilities," F e The TWC And EPA monitor treatment plants by issuing discharge permits. These permits dictate the treatment levels CITY OF DENTON UTILITIES r. 5-2 I ti , I I I 1 1 1 that must be obtained by the plant. Failure to meet these ,L requirements can result in fines, penalties and expensive emergency construction projects. 5.3 METHODOLOGY The treatment plant utilizes an ultrasonic meter to measure the plant influent. Except for a few major customers, 4J, 4.; wastewater flows are not measured directly by meters. ~ Indirect measures such as a percent of winter water use-are typically used to determine wastewater volumes. System studies indicate that wastewater flows can be very closely'.` 4 correlated to water demands. c9 in the 1990 forecast the wastewater flows were based upon a percentage of water use. Further studies have found that r this approximation can increas errors during dry months and „ w years. The 1991 forecast uses population as the primary variable to derive flow. For the 1992 forecast it is planned to graph daily data to determine seasonal base flows and g seasonal I/I. The data base has been completed but the a. . analysis needs to be conducted and the graphics still need to be generated. 5.3 WASTEWATER COLLECTION FIMEM a, p 4: The collection system consists of approximately 1.67 million linear feet (316 miles) of gravity sewer mains ganging 4: CITY OF DENTON UTUT1Eb i "Wi !d in size from 4 inches through 33 inches in diameter, 790750 linear feet (15 miles) of force main and 17 active lift stations. 643 feet of sanitary sewer is less than 6 inches in r diameter. These lines are conaidernd to be substandard because they tend to be very maintenance intensive. Table 5.2 "t provides an accounting of gravity lines. a _ ~ to Of primary concern to operation and maintenance personnel n are main blockages and infiltration/inflow. Grease enterthq the system is the major contributor to this problem The y- proliferation of garbage disposals has compounded the problem over the past twenty years. Problem mains are flushed on a .,.i. t. regular basis as a preventive maintenance procedure. Also, _i - every collection main in the system is flushed at least once a { year. Another contributor to system problems is root intrusion. i Field Services is currently seeking a procedure for long term. Ia successful root removal. f "'r r+ . generally related to olds Inflow/infiltration (I/I) is i cracking gravity mains, worn out joint sealers and poor manhole construction practices. 1/I Is difficult to locitte because it does not surface like a water leak. It is evidenced by greatly increasing flows at the plant during a rainstorm. a CITY Of DENTON UTILMEB a 1+ S-4 i 4a r 1 i .a m e , a. l f. lb w .r u.i.. ~X'i Al..'1xu, P w r. n. n. \:4•'!.y Iru r; .~1: a 1 4 1. P ~l I TABLE 5.1 i CITY OF DENTON SANITARY SEWER SIZE AND AMOUNT - LINEAR PERCENT OF y SIZE FEET MILES TOTAL 0.04 Y' + e ♦ 41 643 012 h 6+ S",039 104.93 31.71 112.21 33.91 . J 10, 6+ 692,446 k " r Y t• f 224,036 42.65 12.57 ~y 12" 60,872 13.23 4.00 16+ 70,307 13.33 4.03 - 1S+ 86,2" 16.34 04 +ri 326 0.00 0.02 i 21' 63,416 10.12 3.06 . ~ t y 10 .12 24+ 63,460 3.06 s 27+ 26,670 6.03 1.62 30+ 111000 2.23 0.67 kf; J 33+ 3,260 0.42 0.10 { TOTAL 117471315 330.03 100.00 FORCE MAINS 79,760 16.10 100.00 NOTE. BASED ON HANSEN OPERATING AND MAINTENANCE SYSTEM e;.a4 CITY OF DENTON UTILITIES x 4; . y..n 4 .Y 1; ~ ~ F Ar gi l Lill 1 : 1/I study is a tedious process. To some degree it is a A.. hunt and peck process. The process is dependent upon adequate ' i. E w~4 rainfall events to measure wet weather flow conditions. s Infiltration from ground water is found by comparing ground '2~ water table levels to sewer line elevations and inspecting _ t those lines constructed below the water table. An i/I study {r. generally involves stem Analysis ~y - wastewater Collection 5y A rF Sectioning the system into primary divisions - Measuring wet and dry weather flows 4 4P ,f 1 4 Identify problem sections ry f _ - Sub-section problem areas weather flows fl - Measure wet and dry y til c ` - epeat sub-section process un specific R 1 problem lines can be identified Inspect problem lines with T.V. camera to determine type of failure (Le-, cracks, joints) Y Determine if cost of correction is less than cost of treatment. ` Freese and Nichols, Inc. completed a wastewater 14 Collection System Master Plan in 1485 which is sufficiently current to serve as the system analysis. However, the I/1 i y. analysis should be undertaken in the next 12 months to take ' advantage of this Freese and Nichols study. h.: cm of DENTON UTILMES 5-6 i Y ~ n..a q MwVNYd +AI:4 v. a { e c i ~ I : f t 7 1 h 5.4 WASTEWATER TREATMENT 1. The Pecan creek Water Reclamation Plant has a rated ty capacity of 12 MGD (millions gallons per day) and an overflow I} F , design capacity of 18 MGD. The overflow capacity is to accommodate stormwater flows. The plant has a permit for 12 Y - MGD. Table 5.1 and Figure 5.1 show the historical and projected average annual influent received by the wastewater S , , treatment plantY Figure 5.2 depicts historical wastewater, forecast trends. Again there is a general downward trend ifi e trends e . variability in rhea these forecast but there is more r , ~ } t~Fr; _ than in the water and population trends due to the wide degree r; of methodologies used for the wastewater projections. ? ~,yk TWC regulations require that planning and design of new or expanded facilities must be initiated when the daily t n average for three consecutive months exceeds 75 percent of the rated capacity. Construction must be initiated at 90 percent, s 11' 6 rl During 1990 the average daily flow exceeded 100 percent rs in the months of March, April and May. The flows reported to the TWC are given below: R mil 1 51 .1N i 1. Y CITY OF DENTON UTILITIES t TABLE 5.2 r CITY OF DENTON HISTORICAL AND PROJECTED AVERAGE ANNUAL WASTEWATER INFLUENT FLOW (MILLION GALLONS PER DAY) YEAR DENTON CORINTH ARGYLE TOTAL t, i ~k +,ti! ~3 - HISTORICAL-- ` 1090 6.31 0.16 a~6 t 4f' 1991 8.73 0117 6.p0 ~Ki i 1912 91e1 o.a ~.n t c ~2k n r t 0.06 1.43 t 1093 a36 w 1964 US 0.30 aN _ 1916 6.90 0.34 N/A 0.14 1916 8.96 0.10 9.14 1967 0.11 0.41 9130 10M 1.36 0.10 8.84 ; 1990 0.13 0.33 6.44 1900 9.24 0.34 0.009 9180 .y --PROJECTED 1901 9.46 0.36 0.006 9.6b 1004 9.34 0.36 0.006 /.7? 1993 9.41 0.40 0.006 0.11 ` 16-04 9.66 0.41 0.034 9.91 1006 9.76 0.44 0.064 10.49 4000 11.10 0.86 0.204 11.0 2006 12.63 0.63 0.206 13.46 2010 14.37 0.66 0.201 16.26; R t Iola 16.36 0.74 0.910 17.31 I00o 11.62 0.61 O.M 19.63 y~ y * 8 YLAR INCREMENTS FJIyr + CITY OF DENTON UTILITIES 5-9 ,r. r „ yWOM.Mi.aWhA:Gr'... n... ._A e.t t..n. ~ ~f . i f 1 14 ' { FIGURE 5.1 HISTORICAL do PROJECTED 13 AVERAGE ANNUAL ...............r...........r.....r......................................./...... CITY OF DENTON & CUSTOMER CITIES 1fAs=ATER INFLUENT 12 ...................................r s.. f ' i ii ...u.r. u. u.. n....r.... u.. .:...........un .r...•..... r..... .r..rr.. ..r.. r..r,.r.r.r. .rr.r, r.. 1. r.. DENTON p CUSTOMER C1TES "A 10 1 rNnuul.... a.ll.un..f 1.. r.. x "w. u....r r........ r.rr.r..r....~. F. 1 r.r... r r..... ...rr.... r. 4 6 0 . r.. r.. ;r .J ..r...rr.... H..... Y... a.a..K 1♦ '111"j f V1 DENTON ONLY' z • ~k y A ...........r .,........ra......................d..........r........r.....rr.....r.;..........l.,r............... 11.1.E .r.... ..........................y..................... r........... r..... a.r.../.~... .r • I' r t.` 8 ....a.alr.1 ...............r..r....:....r........r.r.....r....1 a .1 ..r... 11.x111.1... H IrU .1.1 ...1 .........II I.I4If..ll ' r C'A, 00 • , ~l. ~ u.xxw u..nxuu.nn.iu.u...~.uawu..unnuu.ruxu.u.uu;.u.u..u.u.r.uuruu.unu.~u a.u uxr. 446604"'1 l to. 1.1 t rl • HISTORICAL DENTON ONLY ' 1980 1986 1A90 1996 ~'~000 ~ 'l YEAR _ I " r . ^ 4^ ,r 1 ( s . #h F b 'Y' l i J L. toll", WAW 'r I L z3 1985 1987 1988 1969 1900 1001 FORECAST FORECAST FORECAST FORECAST TO== FORECAST Y11WAMM~ , ; . 20 o 000 x 14, 9 C : : • r! ~..•...I .u. nu • 'r r O 15 x , o 1a , ~4 MURE :5 z ! c 1Z1~VA~u ~R s HISTORICAL IIA9T1E1IA''Ett WFLUEIiT ~ A~ffiR~~'4ltl :.J 5 1980 1985 1990 1995 2000 2005 20100f5 202b ` ~r YEAR r~ , k+n "'o f 10 r t' 0 r°. • t i, a k 4' U~ N.ti'~ ° p ti' r ~1 ,4t a P 1 10 „ s AVERAGE DAILY PERCENT OF MONTH FLOW (MGD) RATED CAPACITY i March, 1990 11.99 99.92 s, f ; 13.52 .112.67 E April, 1990 13 . 32 102.66 ' May, 1990 I~ y'. r'. These figures above show a significant increase over the yr ; previous years figures. This is probably due to two factors. 1 i Toward the end of 1989 Denton started pumping all of its lant as it receives it. Previously influent through the p aa'` Denton would let this water accumulate in the collection ' Ls,'f, ' tr rG system. The other factor would be that during the spring of r 1990 Denton experienced several record storm events. Figure flows 5.3 provides a comparison of the average annual daily WC criteria levels of 75 percent and 90 percent and with the T with planned plant expansions. According to this graph a 3` r MGD expansion must be completed as soon as possible. 1 ql l ~I 5.5 LIFT STATIONS Denton currently owns and operates 17 lift stations throughout its service area. Denton also owns 3 lift stations R` which have been abandonod. Four of the major lift stations, Hickory Creek, Cooper Creek, Hobson and the Corinth Lift s stations are described in Table 5.3. r A lift station must have sufficient capacity to pump the Excessive peak day flow with the largest pump out of service. r Ony OF DENTON UTIUTIEb r~~:' 511 f a' r r 4 22 FIGURE 5.3 20 MGD, I 1992..,,..x.... ~r.. 21 CITY OF DENTON WITH i r PLANT PROJECTED 3 MGD I CUSTOMER CITIES EXPANSION~. 4 CAPACITY 20 HISTORICAL be PROJECTED . s WASTEWATER TREATMENT , 19 PLANT CAPACITY .................r. 18.00 MGD,.,,. i 1$ ......................r•, •/1...1..,...,,...11..• HISRORICAL FLOMS 9OX OF RATED PLANT CAPACITY ' 17 REQUIRES CONSTRUCTION BE UNDERWAY' " 1' ' TWC I T5x OF RATED PLANT CAPACITY : 15.00 MGD x 16 TWC REQUIRES PLANNIING OF EXPANSION..'... 'r } 15 MGD PLANT CAPACITY u ' , 15 ; POSSIBILITY OF EXCEEDING RATED.,........,. 1 ...............PROJECTED PEAK...'.' t t G 14 3 MONTH AVERAGE PLANT CAPACITY i N V! 13 FOR WET YEAgS b CAPACITY r lx GDP ~ ~ 1 F• 012 1,15 got) 11 ,..,...,.uu.u.. ..,.tu.a.•....,..i..,,.~1,..,,.....1.•. i•., I i...~ I t~.Y~.~. tip 10.8 MGD 1Y , .1 u.,, ' .............•,•,..H.1.1..,,....1,,....,.•..,•....1 1.•.l U. I p • t A .1.......U.I..~iNl 9 9.0o GD , t, PROJECTED 5 MGD t r .....................pgOJECTieD PUK............. 8 9 MONTH AVZPAOIC PLANT EXPANSION FOR NORMAL YZAR3 q ,..,t ' c 1996 x000 1980 198lS 1990 YEAR 7 4, rho-,'. , I/I can significantly effect the peak day flow and cause a lift station to reach capacity prematurely. There is a flow measuring device at the Corinth lift station only. No other lift station contains a flow measuring ' "S device, However, data is available for the amount of run time , each pump experiences during a given day. This can be used to make a crude estimation of the lift stations loading condition. The average run time per day for each pump ie shown in Table 5.3. 7 ~ 5.6 OTHER CONSIDERATIONS r' Freese and Nichols, Inc., Consulting Engineers, has ' _ completed a 20 year Master Plan for the Pecan Creek water , 3 Reclamation Plant. This plan will address sludge treatment and disposal as well as the impact of changing TWC and EPA Y re u]etions. Currently Allen Plummer & Assoc, is working on methods to increase the rated capacity at the wastewater' treatment plait from 12 MGD to 15 MGD. Future forecast will embody many of the basic criteria when they are adopted. They will be used to identify needed improvements during the planning period. Until that time, this reader is directed to the master plan for a description of identified improvement projects. h ^r', 1 ze CITY OF DENTON UTIUTIEB 5-13 i dip: Y TABLE 5.3 CITY OF DENTON MAJOR LIFT STATIONS ' PUMPS FORCE MAIN AVERAGE CAPACITY *m RATED RATED RUN TIME STATIC LARGEST PUMP MAXIMUM ; LIFT PUMP CAPACITY HEAD PER DAY DIAMETER LENGTH LIFT OUT OF SERVICE CAPACITY STATION NO. (oam) (n) (MRS) ON) (FT) (Fr) (GPM) (GP#A l HICKORY 1 1,200 + too 22.11 , CREEK 2 4,200 + 100 0 + 21 12,200 126 6 11,30p 7,70b 3 5.600 190 026 yti , COOPER 1 100 90 1.56 CREEK 2 1,660 90 11.01 16 3,600 69.0 3,100 3000 3 t,960 90 6.t0 , HOMO 1 5,000 110 0.116 16 3,bt3 6~0 3,W 2 3,000 110 0.76g° CORINTN 1 320 66 10.16 , !M 66 0%, _ 2 3m 66 14.36 , + VARIABLE SPEED PUMPS NO DUTY POINT SPECIFICATIONS ARE AVAILABLE s. DUTY POINT IS ESTIMATED BY THE SYSTEM HEAD CURVE + PUMP WAS OUT OF SERVICE DURING MOfWTOMNG PERIOD PUMP 1 A I ARE NOT DESIGNED TO RUN TOGETHER r i 1 1 1y i Jae... ,..~..:w., , .71 Y J SECTION 6 SOLID WASTE UTILITY ; moo .I 4 f f, Lj Yl, I a J it.. i JANUARY 1991 `j s: DENV MI CM OF fttlNl fP UTILM DEPARTMENT DENT N, '1'lIXA3, 1 g '~rTION ¢ ~ I Cow WASTE i1T7 ,ITY 6.1 INTRODUCTION ' The current environmental concerns for ever-increasing . solid waste volume and ever-increasing landfill availability A ri, yr; 4s, clearly indicates the need for a viable forecast from which financial planning and planning for solid waste disposal alternatives may be conducted. 1 Federal and State policies promote the reduction, recycling, and minimization of solid and hazardous waste as the top waste management priorities of government and 4 industry. The U.S. Environmental Protection Agency's (EPA's1 °J recent ,Agenda for Action" clearly states the federal policy 1 are the position that "source reduction and then recycling i.` between waste generation preferred options for closing the gap the amount and toxicity and management capacity and reducing a* of waste that must be landfilled or combusted." (US EPA, The }k Solid Waste Dilemma, An Agenda for Action, Report of the` v Municipal Solid Waste Task Force, Office of Solid Waste, Washington, DCt February 1989) The EPA's "Agenda" reflects another significant development in waste management policy► a role reversal in' environmental leadership, in which both responsibility and CITY Of DENTON UTIUTIEf 6-1 4 aN initiative are shifting from the federal to the state level. This shift from a federal to a state-lead role in the ll' implementation of pollution prevention and waste management f s' increasingly pronounced in both state and _ policy is becoming According to the "Agenda for federal regulatory developments. Ac ion," the federal role is in source reduction and recycling research, and information exchange centers on education, on program< whereas the states' role must focus more directly , implementation, regulation, and funding. JI regulatory agencies, environmental interest i ~ . Increasingly, groups and citizenry anticipate that city government will be, responsive to environmental concerns and actively planning • adequate and to meet the demands of providing strategy compliant solid waste disposal, The forecast serves as a tool k to assist in these stategic effort. all solid waste disposal K Federal regulations, governing option, including landfills, have been progressively Stringent The latest and have increased the, cost of compliance, proposed regulations are EPA Subtitle D revisions. These ` rovisions, as proposed, may have major operational and budgetary impacts on all municipe.l solid waste landfills, k The increased landfill cost will, in turn, have an impact Compliance with the proposed on the economics of recycling. r O TY OF DENTON UTILITIES 6-Z t ' MAI F I l regulations indicates that the future cost of preparing an existing landfill will be high. Given these concerns and the P impact of disposal alternatives on the city' long and short r, term planning, the community services division has undertaken ; to prepare a forecast of solid waste volume and landfill + requirements through the year 2000. i 6.2 METHODOLOGY ` Development of a model to project solid waste volume-has historically been based on population projections and per r mfr capita volumes. In attempting to analyze the waste streams ~La historical customer data# volume data were examined as well as empluyment data, income, and types of residences. The use of r~ this information was severely limited by data availability and fs' what information was obtainable in the given time-frame. u The time series analysis was utilized to reveal Past r, growth patterns. These patterns were adjusted to reflect the differences in solid waste Volume generated by a residential customer verses a commercial customer. J., rl The regression analysis measures the degree of change in solid waste volume that can be accounted for by a change in y adjusted population and customera. i. { k r : MY OF DENTON UnL M99 6-3 y. r f F 4 6.3 CUSTOMERS l The forecast of residential and commercial customers was " derived from the forecast of city population adjusted for single family residences, multi-family residences and r commercial entities using a multi linear regression analysis for annual historical data from 1985 - 1990. 6.4 SOLID WASTE VOLUMES Total solid waste volume was developed as a function of { yr population, adjusted for the number of tingle family and r multi-family residences and commercial en%erprises and the. number of customers as independent variables in the multilinear regression analysis for the period of 1985 - 19896 , Z' The population information was provided by the City of Denton y L~ Planning Department. The population adjustment vas provided by the North Central Texas Council of Governments. , in the multllinear analysis, the coefficient of diterminatlon !t squared value (88.3%) represents the samples estimate of proportion of variability of the dependent variable (solid, ` waste volume) in relation to the variability in the independent variables adjusted population and customer numbers. 1 Table 6.2 and 6.3 reflects the historical and projected solid waste volume. These figures were then adjusted to t~ CITY Of DENTON U nunEs 6-4 1. . y ~ I , i 4 r ? TABLE 6.1 CITY OF DENTON - HISTORICAL AND PROJECTED j RESIDENTIAL AND - CUSTO r ; COMMERCIAL CUSTOMERS RESIDENTIAL • COMMERCIAL R,,,, rs RESIDENTIAL COMMERCIAL CUSTOMERS CUSTOMERS CUSTOMERS e 4a"' YEAR a „ HISTORICAL - "j Li 1911 17,101 1" 14,117 ` 1911 if,41Z 1,147 1401, # k 1011 17,144 910 /1,111{Ya' 14" 41N 19,141 j 111 14AU 11,710 1910 14110 tp90 ~ 64YS r'p rPMECTEt) . 1,140 11,103+, 14,743 1f11 1292 1,10 11,!14 14,17f 1,1q 16AW y 11,147 r" 114 1111! 1,1Ti /9,li1 1 ii ' 11,1712 u 1 1 11M tf 171 11,149 r,, 1/N 11,111 IA71 low 11,IN 1N7 19,777 19041 d, . 1119 11,14! 1' 1M11 j t9M 17AM 1,771 1 19,IN 2000 17,174 1 AM . - NOTE ALL VOLUMES ARf CAMIP1LfD ON A FISCAL YEAR Ball t Ai CITY OF DENTON UTILITIES sE s 6-S } t Y. TABLE 6.2 CITY OF DENTON HISTORICAL AND PROJECTED LANDFILL SOLID WASTE VOLUMES TOTAL SOLID r RESIDENTIAL SOLID WASTE VOLUME WASTE VOLUME WITH WITHOUT WITH COMMERCIAL MISC.' WITHOUT YEAR RECYCLE RECYCLE VOLUME VOLUME RECYCLE RECYCLE - HISTORICAL - NOW MAN 2"'m INS N.2" Nato 104,"0 211,045 w 1046 1#,101 1~1 M5 . yAw 114,060 04.234 114,421 110x616 21141 >ff7i4$3 , ' 1041 NaN lH,4i>t MOM 1041 57,717 11?tT 104,118 loom ",741 "BAN 'J 67 1 17,031 111,156 1111 111x" A2 131 041,046 ' - 1#,114 111x42 04, 1040 1#,114 w PROJECTED ~ 101,172 104A44 910,!11 11#x41 1041 04018 11,518 104,010 101,057 M2 ",113 64.274 112,040 62," 107,$30 ; 3 MAN 104.412 341x11 1042 ",121 10417/ x!10,104 100,111 11" ",1" 12.215 104,1#1 402A01 107,041 1104 4,411 $3,1" MCI, 111x513 114,251 411,311 110x41 . 1045 ",713 14.202 200x52 113,304 1047 Mass 04x42 205A24 115,614 428x" 101,812 2110 123,1$3 4,101 111,04! , Nxa 127,511 401,'x21 120;071 1104 104,461 ",907 224,406 " 132,713 123,104 2550 101,114 u.255 232,117 47204 HOTS; ALL VOLUME! ME COMPILED ON A FISCAL YEAR MIS r INCLUDES CONTMCIO CASH, AND MUNICIPAL (SEE TAMIA 64) i`. rr INOW DE6 SALE OF COMMERCIAL, ASpUCTION W COHTRACI - SAW, AND 60% REDUCTION IN CASH - CITY Of DENTON UTILmES - P 1 fem. ~ A y ~ n . v ' X111 _ TABLE 6.3 , CITY OF DENTON HISTORICAL & PROJECTED CONTRACT, CASH AND MUNICIPAL SOLID WASTE VOLUMES TOTAL CASH MUNICIPAL' MISC. CONTRACT VOLUME VOLUME _ VOLUME YEAR VOLUME r. HISTOFGCAL 11,140 1,040 7aa 41,100 y 1916 1 1 31 1N1 Ia,~ ~ 10944 411,I:a 31,109 iM7 "'m IAN 101,7130 a: 1111 4,0 3,303 66,740 90.7/1 N 031 a 19N 13,70 004 IA" 1910 11,141 .`j pFtOJECTED ,341 3,017 4011173 tN1 p' 1 1NA" 1117 731071 790910 1,N1 10SM3.: ; 20.600 1913 74'033 IAN 100,110 1114 78117 111,173 IA" J 1116 7909q 33 061 3,001 1441 fJa 1911 IO,t41 _ 111,111 1M7 WA10 1!3,40= 340979 3,111 F 1191 N'444 3,244 137,111 p r 1111 q,713 $8.90 133,113 - on f3d11 y r„ r YK, 2 A NOTE; ALL VOLUMES ARE COMPILED ON A FISCAL YEAR SASIS MUNICIPAL INCLUDES ALL CITY OF DENTON DLPMTMENfS r , CITY OF DFNTON VnLITiEA 1R l r 6-7 J, I f 250 F DENTON F RE 6.1 . do PROJECTED 225 do COMMERCLAL W STE VOLUMES ' C 200 ~p • • COMMERCIAL VOLUME d' • • 1 ~175 i r . rsS i b~ 150 • 125 W, 4I 14 b4 RESIDENTIAL WITHOUT RECYCLE ~FI i.. 100 { ! 75 ,......R,,.a. ...,r, • COMMERCIAL HISTORICAL L` ■ RESIDENTIAL HISTORICAL WITHOUT 1tBCYCLISR y x 50 1990 1995: YEAR w;. . r ' 1 Y VY} 4 1 L 500 FIGURE 6.2 HISTORICAL AND PROJECTED LANDFILL SOLID O WASTE VOLUME . 400 tzl . 300 200 d ©100 0 4 987 1988 1989 1990 1991 1992 1993 1994 1995 1998 1997 1949 1,006 9000' y ~I 0 198519881 YEAR . MUNICIPALS INCLUDES RESII)ENM WITH RECYCLING, SALE OF COMMERCIAL, AND 50% REDUCTION IN CASH SALES Sox REDUCTION IN CONTRACT SALES, INCLUDES RANSD SNENTIIAIL WITHOUT RECYCLING, C0MIMCAL, MUNICIPAL, CONTRACT f ;3 y.~.,w 44114 I i ~r 1 I r FAND impact of curbside recycling and the sale of the ivision on reducing the waste volume. i commercial 1 L ' fects of the sale of the commercial division is M o have considerable influence on remaining landfillThe effects of recycling in the short term will l influence on the remaining landfill capacity, '1 s 1} 4 Figure 6.3 represents the anticipated landfill -space ~p r1v` requirements and the influence of recycling and sale of the commercial division on extending the life expectancy of the , r landfill. t , 1. r 1 , +`a , MY Of HNTON nUTIEB 6-10 .,..ors, a.FY.f.Ye , ,Irv v♦ ilk- a~ i i4 2,500 ` FIGURE 6,3 4 PROJECTED REMMINO p LANDFLL CAPACITY 2,000 . ..1.......1.1 ..............1....1;..1.,...............1..1... 1,500 ,.,.......1.....1.,.,.1...11. .,..,..I .....................♦:.........1..1,.R.,..,,,.,.RI' rti ' n bd 10000 I..1.,. 11.1.,... n 600 .,.,.I..,...+,,,,...... ,I.,,♦,...,.,,,. ,..1.,..... .,,..,.♦~,R,.♦,R,R,.,. H ENO OF EXISTiNO LANDFILL CAPACITY • 1 Y~ Z~ 0 W~A '_500 1, . + 1990 1995 2000 2006 ~b10 YEARS INCLUDES RESIDENTIAL TMOUT RECYCLING, C0MMICAL, MUNICIPAL, CONTRACT, AND CASH. INC~L~UpD~ESSRS MMMAL ttlM RECYCLING, COIWERICAL, MUNICIPAL, r y H; lei CONTRACT, AND CASH , RECYCLtrta, SALE or cowawcu.,liUNlt'l AL INCLUDES RESIDENTIAL II1T1i N CONTRACT, AND CASH { j. r _ 1 "701 R c3x Y, .y R r{ .aa a tea A'^ r APPENDIX A E S T' REFERENC ~a r e i e w 'per.' i a a j JANUARY 1991 CM Of DU TON mm(w nLP"K'j' VAL UNION, 9 I S' i~ ~ i , , a+E'3'htii sy~,'k•-wFL4'.~o ' aim& 1 I } - l REFERENCES General Denton Municipal Utilities Planning Forecast 1990-1994 City o Denton Municipal Ut t e8, January 1909 Denton Municipal Utilities 1988 Planning Forecast, City of Denton Mun c pa utilities, January 1908 Utility Department 1987 Planning Forecast, City of Denton municipal Utilities# January 19 Population a° "Current Population Estimates", 1985-19890 North Central Texas Council of Governments NCTCOG Population i Employment Estimates by Traffic Survey zone, NCTCOG Computerized Data Base 1989 ro`9 Weather "Climatological Data Texas", National Oceanic and Atmos- pheric Administration Climatic Atlas of the United States, U.S. Department of Commerce, Environmental Science Services Administration, rtr Environmental Data Services s Electrical Electric Reliability Council of Texas (ERCOT) 1979 Gilbert Commonwealth Associates Load Forecast American Society of Heating, Refrigeration and Air-Condl- tioning Engineers (Ashrae) Handbooks Chapter 200 1077 ; Water/ _Wastewater Demand Forecasting and Financial Risk Assessmen , AWWA 1955 Seminar rocee ngs$ June 23f 1: "Forecasting Demand a Measuring Price Elasticity", Jack A, Weber, AWWA Journal, May 1989 Populations and Water Requirement Projections, Texas , water evenar ep em er,, ep em er, 1983 CITY OF DENTON UTILITIES A-1 ? f. f,J. ..i.. a ~ . rn~. . i Denton Count Water and Wastewater Stud Regional Master Plan or the Year 2010, Denton county Comm ss oners Court an Participating Agencies, By Espey, Houston i Associates, March 1988 City of Denton Sanitary Sewer System Infiltration/inflow Analysis, Freese i Nichol s, May 975 city of Denton Wastewater Collection System Master Plan, r Freese i N c o s, July i 8 ` "City of Denton Sewers e System improvements Facilities ;k. Plan", reeee i N c o s, January 1976 + . Rk k1 ' "Cit of Denton Texas Water Distribution System Mort j s s A ternate star uDD Y ounces , Hogan i la~aor, + Anal or Inc., July 1983 - Rules i Regulations for Public Water Systems, Texas Department o Heat H), water yg ene Div eon, 1988 Key Rate Schedule, State Board of insurance, 1971 ~~/Ir~Fj j{ 9 l 5 hr T a 5 I 1. P1 1 I ~ ` r If % r SI I " w l .yy F l 61 t7 it I~ I Y CITY OF DENTON UTILITIES A•2 e .."miee•:WAIYJ'fk`larM kYTJNPe.r_....• 1 ~ ' 1