HomeMy WebLinkAbout07-22-1997
City Council I
Agenda Packet p
July 22, 1997
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Agenda Item
AGENDA Gafe`LdA - 9 7
CITY OF DENTON CITY COUNCIL
July 22, 1997
After determining that a quorum is pres.-iii and convening in an open meeting the City Council
will convene in a closed meeting of the City of Denton City Council on Tuesday, July 22, 1997
at 5:15 p.m. in the Police Department Conference Room of the Denton Municipal Complex, 601
E. Hickory, Denton, Texas, at which the following items will be considered:
1. Closed Meeting:
A. Consultation with Attorney Under TEX. GOV'T CODE Sec. 551.071
1. Discuss with City's attorneys and consider mediation, settlement, and
litigation strategy in litigation styled Richard and Marilyn Brentze).
Individually and gn Behalf of Pamela Brentzel v. City of Denton. Ed
Green and Denton Plaza Shopping Center, cause no. 95-40188-362 in the
362nd Judicial District Court, Denton County, Texas, and alleging
damages for personal injury due to Plaintiff Pamela Brentzel's fall into a
drainage ditch.
2. Discuss with City's attorneys and consider mediation, settlement, and
litigation strategy in litigation styled Joel Darnell Patton ar.1 Nelda lean
Patton v. City of Paris. City of Denton. and City of Corsicana, cause no.
3:96v66, filed in the U. S. District Court, Eastern District, Paris
Division, and alleging civil rights violations.
B. Conference with Employees Under TEX. GOVT CODE Sec 551.075. The
Council may receive information from employees or question employees during
a staff conference or briefing, but may not deliberate during the conference.
ANY FINAL ACTION, DECISION, OR VOTE ON A MATTER DELIBERATED IN A
CLOSED MEETING OR ON INFORMATION RECEIVED IN A CONFERENCE WITH
EMPLOYEES WILL ONLY BE TAKEN IN AN OPEN MEETING THAT IS HELD IN
COMPLIANCE WITH TEX. GOV'T CODE CH. 551. THE CITY COUNCIL RESiaVES
THE RIGHT TO ADJOURN INTO A CLOSED MEETING OR EXECUTIVE SESSION AS
AUTHORIZED BY TEX GOV'T CODE SEC. 551.001, ET SEQ. (TEXAS OPEN MEETINGS
• ACT) ON ANY ITEM ON ITS OPEN MEETING AGENDA OR TO RECONVENE IN A
CONTINUATION OF THE CLOSED MEETING ON THE CLOSED MEETING ITEMS
NOTED ABOVE, IN ACCORDANCE WITH THE TEXAS OPEN MEETINGS ACT,
INCLUDING, WITHOUT LIMITATION, SECTIONS 551.071-551.085 OF THE OPEN
MELTINGS ACT.
0 Work Session of the City of Denton City Council on Tuesday, at 6:00 p.m. in the Central Jury 0 41
Room of the Denton Municipal Complex, 601 E. Hickory, Denton, Texas at which the following
items will be considered:
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1. Hold a discussion regarding recommendations from the Oversight Committee and give
staff direction.
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City of Denton City Council Agenda
July 22, 1997
Page 2
2. Receive a report, gold a discussion and give staff direction regarding the Upper Trinity
Regional Water District Southwest (135W) Service Zone Study.
Following the completior of the Work Session, the Council will con aene into a Special Called
Meeting to consider the following:
1. Consider nominationslappointments to the City's Boards and Commissions.
2. Consider approval of a resolution supporting the incorporation of 3 Streamline
Transportation Efficiency Program for the 21st century (Step 21) into the reauthorization
of the Intermodal Surface Transportation Efficiency Act of 1991.
CERTIFICATE
I certify that the above notice of meeting was posted on the bulletin board at tr_ City Hall of
the City of Denton, Texas, o,, the day of 1997 at o'clock
(a.m.) (P,m,)
CITY SECRETARY
NOTE: THE CITY OF DENTON CITY COUNCIL CHAMBERS IS ACCESSIBLE IN
ACCORDANCE WITH THE AMERICANS WITH DISABILITIES ACT. THE
CITY WILL PROVIDE SIGN LANGUAGE INTERPRETERS FOR THE
HEARING IMPAIRED IF REQUESTED AT LEAST 48 HOURS IN ADVANCE
OF THE SCHEDULED MEETING. PLEASE CALL THE CITY
SECRETARY'S OFFICE AT 349-8309 OR USE TELECOMMUNICATIONS
DEVICES FOR THE DEAF (TDD) BY CALLING 1-800-RELAY•TX SO THAT
• A SIGN LANGUAGE INTERPRETER CAN BE SCHEDULED THROUGH
THE CITY SECRETARY'S OFFICE.
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Agenda No -~rOcitS
Agenda Item
Date
('1TY OF DENTON, TEX 4S MUNICIPAL BUILDING DENTON, TEXAS 76201 • TELEPHONE (817) 566-8307
Orre of the City Manager
MEMORANDUM
DATE: July 22, 1997
TO: Mdyor and Members of the City Council
FROM: Rick Svehla, Deputy City Manager
SUBJECT: OVERSIGHT COMMIT[ EE MATERIAL FROM JULY 71 MEETING
Attached is the backup that was prepared for the Oversight Committee meeting on July 7', as
well as the draft minutes for that group. On July T" we had five major issues. The first of
those was the use of some miscellaneous drainage money for a culvert replacement on Spencer
Road. The Committee recommended approval of the use of that money as well as a further
recomm^ndation that uitimately all the funds for this project should come from bond funds,
Therefore, you will also see a reimbursement resolution on your August 5' agenda to facilitate
their recommendation should the Council desi,-.. The second area that the Committee made
recommendations on were for the CNIAQ projects. Basically, they recommended four projects
to you. Those are the right turn lane at I-35 and U.S. 380, the intersection improvements (left
turn lanes) at Bonnie Brac, Malone, Fulton and Carroll on University Drive, and the extension
of the Texas U-Turn turn lane at Ft. Worth Drive and 1-35E and; finally, the improvements for
• acceleration/deceleration lanes at Kings Row and Loop 288. They recommended using existing
CNIAQ funds as well as existing excess funds from prior signal projects. The second issue l
under miscellaneous streets is what to do with the portion of the 3400,000 of miscellaneous
street money that was sold in March. The Committee recommends the completion of Parthandle,
Fulton and part of Linden streets. The next recommendation that the Committee made was on
sidewalks. The Committee is recommending three projects to you. Those are on Bell Avenue,
® from Windsor to Sherman; on Bernard from Hickory to Eagle; and on Dallas Drive from Eagle
to Teasley. The final recommendation had to do with Lakeview Boulevard. After receiving a
briefing from staff, the Committee felt very strongly that this will be a major future
transportation need. They suggested using Miscellaneous Street funds to acquire extra right-of-
way to facilitate future expansion of Lakeview to four lane divided facility.
'DadiiattJ N Quahry Servt"'t"
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Memo to Mayor and Council Members
July 22, 1997
Page 2
I will be happy to try and visit with any of the Council Members at your convenience, if you
have any other questions; otherwise, we will be available at the meeting to answer any questions
you might have.
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Rick Svehla
Deputy City Manager
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CITY OF DENT011, TL-XAS MUNICIPAL BUILDING DENTON, TEXAS 76201 TELEPHONE (817) 566.8307
Office of the CJ Manager
N1ENiORANDUNI
DATE: June 12, 1997
TO: Oversight Committee Members
FROM: Rick Svchla, Deputy City Manager
SUBJECT: BACKUP FOR COMMITTEE MEETING ON JULY Th
Once again, we have exciting news for you. At the Council meeting on May 271, Council i
approved the recommendation and strategy on Robertson Street PEC-4 project. They 1; ve us
direction to proceed on all facets of the project. The Council will consider approval of the
engineering contract with Teague, Nall & Perkins for the design of the entire project including
designs for the Ruddell Street bridge on July 1". We are very excited and continue to look
forward to making that entire project move forward. Thank you again for all of your support
and creativity in helping us figure out a solution for this very difficult problem.
We do have one action item for you to consider in the drainage area. You may recall that Jill
and her group are proceeding with the five projects that you have already outlined for the
miscellaneous money this year. We have more good news. She and her staff were able to finish
tt A State School Road culvert project and bring it in about $15,000 under budget. As always,
we t ave projects in line for you to consider when we have extra money and this one is critical
I most of you know that Spencer Road is our main entrance to our landfill for almost all
of our Mid waste trucks. In the last month or so, the culvert crossing on Spencer just west of
• Mayhill is ieginning to fail. Staff has been working on a strategy to repair this crossing this
summer. 'I" his time frame is necessary to stay in compliance with our permit for the landfill.
To accomplish this repair we propose using the S15.000 from the State School Road project to
buy box culvert sections to replace the culvert on Spencer Road. We would augment t'wse funds
with additional funding for engineering from the operating budget. Since this is a culvert that
is in a rather precarious condition right now, we wanted to ask you to consider this and take %
® action at our meeting. We have visited with your fearless drainage subcommittee members 0
about the culvert, and they concur with us in trying to move this project ahead. Since it is
technically old money (i.e., miscellaneous funds that you've had in the till for this year), we
would suggest that we move forward expeditiously.
Da:: Jr: r t: QU';:, r. Service
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Merno to Oversight Committee
June 20, 1997
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The old money issue leads me to our next group of projects and those are under the "street"
category. The first of these has to do with CMAQ projects. I think most of you know those
initials stand for Congestion Mitigation Air Quality program. This program is a state and
federal program and we are able to avail ourselves of it because we are a nonattainment county
for air pollution. Essentially, we have four more projects that Council has approved contracts
for that will need a small amount of additional funding. The first project is the right turn lane
construction at I-35 and U.S. 330. This is the turn lane that was built with maintenance money
from Buz EIsom. We would be getting replacement money for his maintenance funds. The
second project is U.S. 380 intersection improvements at Bonnie Brae, Malone, Fulton and
Carroll. Essentially those projects would lengthen left turn lanes and change the configuration
of some of the median islands to allow for easier turning movements from the cross streets. The
third project is U.S. 377, or Ft. Worth Drive, at I-35E. This project would extend the Texas
U Turn storage lanes, particularly for travelers north bound on 1.35E to be able to make the U-
turn and go back south on the frontage road. Currently stacking for the straight through
movements at the signal do not allow all the people wanting to make these U-tum movements
without having to wait for cars queuing up for the signal. And, finally, the fourth project is the
Kings Row at loop 288 right turn lanes, or deceleration lanes. This would allow people turning
right on Kings Row from eit',er direction to get out of the main lanes of traffic and decelerate 1
to make the tum.
The first three of thew projects require an additional $11,245 of funding. You may recall that
the last time you used some of this "old money" it was used to fund the Eagle Drive turn lanes.
This old money was money that had accumulated either from bonds or interest out of the 1986
projects. Last time, the committee suggested putting the extra money in a fund and keeping it
for projects just like this. There is approximately $13,427 in that fund. We would recommend
using $11,245 of that fund for these three projects. The fourth project at Kings Row and Loop
288 requires an additional $45,578. We are currently finishing up two CMAQ signal projects
in the city. One of those is at McKinney and Mayhill, the other is at McCormick and I-35E.
Those two projects were brought in significantly under the original budget and the estimated
participation by the city. Our savings from those two projects will be approximately $60,000.
This would easily fund the additional $45,578 that is needed for the Kings Row project. We
world recommend the approximately $9,400 left over be put in this miscellaneous traffic account
again. Once more, to recap, we would suggest funding all four of these CMAQ projects with
existing budgeted old money CMAQ project funds. Thus, we would again ask you w look at r
this and give us approval so we can move quickly to get these contracts back to the State. I've
visited with the street subcommittee (i.e.. Terry) and he concurs with this strategy.
Also, under the miscellaneous street construction, we have the recommendation from the April
71 meeting where we suggested three projects: the completion of repaving of Panhandle, the
completion of the paving of Fulton, and the partial paving of Linden streets. We think those are •
still the best three projects to look at and we would recommend them to you.
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Memo to Oversight Committee
June 20,1997
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Finally, under miscellaneous street construction, we wanted to mention an old project and the
conclusion of it. Back a little over a year ago we suggested a strategy for you to use in the
Panhandle/Egan area, We recommended to you that we use miscellaneous street money to help
us repave that whole area and then allow us to catch up w.ien the new budget is instituted. T
think you are all aware that the project has been successfully completed. We were able to
repave all those streets in that area. To do this, we used approximately $79,000 over and above
the ultimate allocation for the project, As you recall, we suggested using the miscellaneous
money as a way for us to "bridge" across to the beginning of our new fiscal year in October.
You concurred and we have done that. We have overspent your allocation by approximately
$70,000. In October, we will repave Wenway which was Otte of the streets in last year's
miscellaneous street schedule. We will do this using street maintenance funds and thus make
the bond fund whole again. There is no decision that is required by you as a group. We only
pass this information of. as a way to keep you informed and help continue to assure you that we
are watching your dollars appropriately and using them for the projects.
Our next category is sidewalks. We have included in your backup the ranking system that the
Blue Ribbon Committee and Jerry used when formulating the list of sidewalks. We believe we
have included all of the requests. At your last meeting we recommended sidewalks along Bell
Avenue from Windsor to Sherman. We also recommended sidewalks along Bernard from
Hickory to Eagle and, finally, a sidewalk along Dallas Drive from Eagle to Teasley. Those
three projects would use up the $142,000 allocation from this year. We've included a map that
shows all of the requests, and in Jerry's memo that is attached, we have also talked about several
other options that the committee has talked about before. We would still recommend the three
that we've recommended before; however, we need to have some guidance and a decision by
the committee so that we can move forward to the council on this one also.
Finally, we have one other item. last time we briefed you on Lakeview Boulevard and our
suggested participation in that project. Just as a refresher, you may recall that the whole
Lakeview project has been rezoned from a very dense, highly intensive kind of land use to
agriculture zoning with large one to five acre lots for the whole project. When the developer
down zoned this project, his need for a multi-lane facility went away. The developer proposed
• i a 60' right-of-way with 24' feet of street. This road will meet the development's requirements
and will be provided by the developer. However, if you look at our transportation map and the
city's ultimate development plan, there will be a need for a larger street in this area. What we
are prcposing to do is to buy an additional 20' of right-of-way in this area. Thus, we insure that
an expansion of this road can be made in the future. Currently, the Denton Development Plan
Committee is recommending that this become a secoriary arterial which would require an
® additional two lanes to be added sometime in the future. This additional 20' would allow us to p to
build that second two lanes at some date in the future. We've had preliminary discussions with
J the owner. The price of this right-of-way would be approximately 50C a square foot. That
would equate to a cost per acre of about $21,000 which is generally what the market is right
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Memo to Oversight Committee
June 20, 1997
Page 4
now. We are suggesting this action to you and to use miscellaneous street bonds to do it under
the economic development provisions of the program. We thinly that certainly the type of houses
that ~.•ould be built in this area will more than pay for the infrastructure that is required to
support them. Thus, we can class the expenditures as economic development.
This looks like a pretty long meeting. However, most of these projects involve old money so
we are trying to brief your subcommittees and get backup to you with their input so you can
move forward quickly at this meeting. On the other issues we have trade recommendations at
prior meetings and now need a recommendation for the Council. We look forward to the
committee meeting. One last note, 1 will be out of the city from the IV of June to the 40' of
July. Jerry and Jill are here and would be happy to try to answer questions in the interim. 1
will be back in the office on the 71, so if you have questions, Monday morning 1 will be happy
to try and answer them Monday morning before the meeting.
Have a goad holiday and we'll see you on the T".
Rick Svehla
Deputy City Manager
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MEMO
To: Rick Svehla, Deputy City Manager
From: Jerry Clark, P, E.
Subject: Sidewalk Project Selection-Miscellaneous Category 1991.98
Date: June 5, 1997
The available funds in this category are S 142,000. We have included a complete listing of the
sidewalk projects that have been identified as a need either by citizens, City Boards and
Commissions or staff. A map showing the length of each sidewalk project and estimated
construction costs is also provided for the Oversight Committee.
Three projects were presented as those staff would recommend for funding. The listing of those is
as follows:
1. Bell Avenue from Windsor to Sherman Drive. Cost $50,000
2. Bernard from Hickory to Eagle. Cost 540,000 plus retaining walls
3. Dallas Drive from Eagle to Teasley, Cost $50,000
The Oversight Committee has expressed some reluctance on the Dallas Drive Project. The Q
following projects also have significant value to the community.
4 Fulton from Oak to University Cost 570,000-Existing sections reduce
Budget unless both sides built to budget 5.
5. Mulberry from Avenue A to Carroll Cost $30,000
6. Highland from Bernard one half block west Cost 55,000-Connects up recent Highland
CIP Sidewalk to UNT Sidewalks.
Please advise if you need further information
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SIDEWALK CRITERIA SYSTEM
June 5, 1997 E
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PEDESTRIAN CONN COORD 1 DISD PROX TO ARTlCOLL NEIGHBOR ID NO
[LOCATION VOLUMES REPAIRS ROUTE NO BUS ZONE SHOP."KS NEAR SCH REQUESTS
Bell {Windsor to Sherman) 13,1501 Medium ✓ ✓ ✓ ✓ ✓ 1
Carroll (Nurthridge to UniversitYl Low ✓ ✓ 2
13,750'}
4
Colorado Blvd (Wilderness to Shady Low ✓ ✓ 3A
Oaksl 11,1251
Sdn Jacinto (1,2001 Low ✓ ✓ ✓ 36
Dallas Or (Eagle to Teasley) 13,750'1 Low But Safety Issues ✓ ✓ ✓ 4
East Hickory (Bell to RA) 13751 Low ✓ ✓ 5
East Hickory (Exposition to Rudden) Low ✓ ✓ ✓ 6
11,950'1
Elm (McKinney to 380115,250'1 Medium ✓ ✓ ✓ 7
Forrestridge (Ryan Rd to Hobson) BikelPed Path Existing I ✓ ✓ ✓ ✓ 8
15,250')
Fulton 10ak to Unlversityl 15,2501 Medium ✓ ✓ ✓ ✓ ✓ 9
Hercules {Stuart to Shermanl 13,0001 Low ✓ ✓ ✓ ✓ 10
• Hickory (Ave C to DI 16001 Medium 11
Locust (Parkway to 380114,6501 Medium ✓ ✓ ✓ ✓ 12
Londonderry IHwy 2181 to Honyhilll Low-New ✓ ✓ ✓ NOT 13
11, 200' I School 97 YET
Londonderry (Sam Bass to 2181) Low-New ✓ ✓ ✓ NOT 14
• 11,9501 School 97 YET
longridge (Teasley to Stonegate) Low ✓ ✓ ✓ GENERAL 16 Q
12,100'1 SOUTHRIOGE
REQUESTS
Mack Drive 11,8001 Low ✓ ✓ ✓ 18
Mockingbird IMcKinney to Audral low ✓ ✓ ✓ 17
16,000')
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SITi)s'11ALR CRITERIA SYSTEM
June 5, 1997
PEDESTRIAN CONN COORD ! DISD PROX TO ARTlCOLL NEIGHBOR ID NO
LOCATIGi1 VOLUMES REPAIRS ROUTE NO BUS ZONE SHOPMRNS NEAR SCH REOUESTS
Grant Parkway 0,8751 Low-Safety ✓ ✓ ✓ 18
Issues
Pennsylvania 12.250'1 Medium ✓ ✓ ✓ ✓ 19
Paisley 11.500'1 Would Reduce Bus ✓ ✓ ✓ ✓ 20 `
Loads
Willowwood 11.500'1 rAedium ✓ ✓ ✓ ✓ 21
Mercedes 11,950'1 Low ✓ ✓ 22
Eagle (3,0001 Medium ✓ LINT ✓ ✓ LINT 23
Welur 16001 Medium UNT ✓ LINT 26
Maple 1900) Median UNT ✓ LINT 25
Bernard 13,0001 Medium + UNT ✓ Highest 26
Level
Highland f375'1 Medium ✓ LINT ✓ ✓ 27
Chestnut 11.0001 Medium UNT ✓ ✓ 28
Sycamore 1900'1 Medium LINT ✓ ✓ 29
• Mulberry 12.7001 Medium + ✓ LINT ✓ ✓ ✓ 30
Owsley Area 16,9001 Medium ✓ ✓ ✓ ✓ UNT 31
Northlakes Trad IAmhersl to Bowling tow ✓ 32
Green) 12.7001
Nottingham (Windsor to 380) 13,750'1 tow ✓ ✓ ✓ ✓ i 33
Sherman (Bell to Herculesl 19,0001 Medium ✓ ✓ TWU ✓ TWU 35
Sycamore (Locust to Carroll) 11,500) Law ✓ ✓ ✓ 36
Texas {Mingo to Oakland) 11,950'1 Medium ✓ ✓ TWU _ ✓ 37
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4. Entranceway Markers
i $100,000 sold/$14,980 spent
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• Carter & Burgess design 70}
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• Expect to solicit land gift for marker sites July/August
• Construction bids August/September
5. Downtown Improvements
• Bonds to be sold March 198 ($700,000)
• Design development by John Armstrong at 50t (funded with bond
interest dollars).
• Demonstration project at Elm/Hickory 90V complete, pending
site furniture arrival. Total cost: $26,753
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1996 OVERSIGHT COMMITTEE MINUTES
July 7, 1997 11:00 a.m.
The committee convened at 11:00 a.m. In the Human Resources Conference Rooin
at the Denton Municipai Complex.
The committee members present were Joe Muiroy, Ron; Beasley, Terry Schertz, Brent
Thornton, Rick Svehla, Kathy Dubose, Jill Jordan, Ed Hodney, Kristin Newman, and
Kathy Brooks. Jesse Coffey joined the meeting in progress.
A. MINUTES
1) 417137 Committee Meeting
Approved with no additional discussion.
2) 5120197 Drainage Sub-Group Meeting
Approved with no additional discussion.
S. FINANCIAL TRACKING l
Kathy Dubose overviewed the financial reports. The committee
requested that the first phase of the Good Samaritan project
funding be shown as complete at the next meeting.
C. STATUS OF PROJECTS
Rick Svehla discussed the status of each project.
D. ITEMS FOR CONSIDERATION
• 1) Spencer Street Drainage Project (Old Money)
Rick Svehla overviewed, We need to meet the landfill deadline of
September 15, 1997. We have $15,000 available from the
miscellaneous drainage projects to buy the pipe and perform th9
enginrering design work. The Sold Waste Department can
contribute the remaining amount this fiscal year. The funding
• strategy wuuld ultimately repay Solid Waste by implementing rI
reimbursement resolution. 0 O
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1996 Oversight Committee
Minutes for July 7, 1997
Page 2
2) Miscellaneous Street Construction -
CMAO Projects (Old Money)
Rick Svehla overviewed. Some concerns were raised regarding
the timing of these projects with other construction anticipated in
these same areas in the future. Staff still felt it was important to
make the improvements now because future construction was 3
to 7 years away.
Panhandle, Fulton, and Linden (recommendation from 417/97)
Rick Svehla overviewed.
Westway
Rick Svehla overviewed.
3) Sidewalks - Bell, Bernard, and Dallas Drive
Rick Svehla overviewed.
4) Economic Development - Lakeview Blvd.
Rick Svehla overviewed. The Committee felt this project was
much more important as a transportation project rather than an
economic development project.
LUNCH
E. ACTION ITEMS
1) 07/07/97 Miscellaneous Drainage
• Spencer Road Culvert
Committee recommended approval.
2) 07/07/97 Miscellaneous Streets
Existing Signal Funds - CMAO Projects
• Committee recommended approval. • O
3) 04/07/97 Miscellaneous Streets
Miscellaneous Street Bonds for Panhandle, Fulton, and Linden
Committee recommended approval.
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Minutes for July 7, 1997
Page 3
4) 04/07/97 Sidewalks
1995 Bonds - Sidewalks on Bell, Bernard, and Dallas Drive
Committee recommended approval.
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5) 04/07/97 Transportation
1995 Bonds - Miscellaneous Street Bonds for Lakeview Blvd.
participation.
Committee recommended approval based on the Council's
understanding that this vote was for transportation needs rather
than for economic development.
F. FUTURE MEETINGS
11 September 29, 1997
2) January 5, 1998
3) March 30, 1998
41 June 29, 1998
0. OTHER BitSINESS
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Agenda No.-i
Agenda Item # c2 WS
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CITY COUNCIL REPORT
DATE: July 22, 1997
TO: MAYOR AND MEMBERS OF THE CITY COUNCIL
FROM: ROM BEASLEY, CITY COUNCILMEMBER AND DEN i'ONS REPRESENTATIVE
ON THE SOUTHWEST SERVICE ZONE STUDY j
SUBJECT: RECEIVE A REPORT, HOLD A DISCUSSION AND GIVE STAFF DIRECTION
REGARDING THE UTRWD (I -35W) SERVICE ZONE STUDY
RECOMMENDATION:
No recommendation at this time.
SUMMARY:
Various communities, property owners and people interested in residential, hotel, commercial and
industrial development along the 1-35W corridor between Denton and Alliance Airport have been
inquiring about opportunities to obtain water and wastewater services. The UTRWD as the regional
provider of wholesale water and wastewater services to many of the smaller communities in Denton
County took a lead role in coordinating a task force to study the issue. Cuunty Commissioner Don Hill
chaired the task force. Representation of Communities and Water Districts located within this corridor
were appointed to this task force. The engineering firms of CH2MHill and Brown & Root provided
engineering support and prepared the report which is provided with this agenda. A representative from
the engineering firm will be present at the Council's July 22nd meeting to present the report of the Task
Force.
The probable next step, provided sufficient interest exists, is to request the UTRWD to conduct a
feasibility study for a possible water and/or wastewater project for the area. The UTRWD has a
revolving fund that can be used to pay for a feasibility study. If a project such as a water tral,~missiort
pipeline or wastewater plant is determined to be necessary, the money used from the revolving fund for
the feasibility study will be reimbursed by the projects revenue bonds. The security for the sale of such
project revenue bonds would be the contracts with the retail utilities in the area who would receive the
projects wholesale water and/or wastewater service.
This task force was an exciting activity that may prove to be the genesis for providing water services to
• an important section of the 1-35WlNAFTA highway in Denton County.
Respectfully submitted,
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Roni Beasley, CounciiFqol(rnber
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Exhibits:
1. Final Report Southwest (1-35W) Service Zone Study
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SOUTHWEST SERVICE
ZONE STUDY
submitted to
- upper Trinity Regional water District
prepmr, ee by
CH2NIHILL
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- Brown and Root
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SOUTHWEST SERVICE
ZONE STUDY
submitted to 1
Upper Trinity Regionai Water District
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30 8EM O prepared by
CH2MHILL
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and o d
! Brown and Root
June 1997
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Contents
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SOUTHWEST SERVICE ZONE STUDY
Page
Introduction 1
Background ..........................................................................................................................................2
Study Area Growth 3
Growth Outlook ......................................................................................................................3
Planning Ahead For Growth .................................................................................................5
Water Concern3 ...................................................................................................................................6
Existing Water Resources And Suppliers ............................................................................6
Existing Water Facilities .........................................................................................................B
Water Service Strategies .........................................................................................................4
Recommended Strategies For Water Supply ....................................................................10
Wastewater Concerns ....................................................................................._................................12
Current Wastewater Management ..................................................................................12
Wastewater Treatment Plant Capacity Planning .............................................................12
Existing Area Facilities,......... ...............................................................................................12
Area Wastewater Service Alternatives and Recommendations 13
Executive Summary 15
Append x A - Upper Trinity Regional Water District Members
Appendix B - Water Supply Fact Sheet
AppendixC - Wastewater System Fundamentals
AppendixD - Responses from Governing Bodies
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Introduction
i
The Upper Trinity Regional Water District (U"TRWD) was formed in 1989 to provide
regional water, wastewater, stormwater, and solid waste services to the Denton County
area. This study was authorized by the District to investigate alternatives for providing
water and wastewater service to the southwest portion of the County and specifically the
IH-35W Corridor between Fort Worth and Denton. Stormwater and solid waste services
were outside the scope of this study, but it is recommended that these needs be addressed
in subsequent studies.
This report is intended to help UTRWD members, area cities and local utilities in the
planning area to anticipate and respond to the need for additional utility infrastructure to
meet the demands of expected growth. The report provides background information on
possible patterns of growth, a description of the water and wastewater utilities and facilities
currently in place to serve that growth, and a discussion of potentially needed
improvements. The principal purpose of the report is to present alternative strategies for
meeting long-term needs in the most cost-effective way possible.
This report does not examine the economic or political feasibil ity of the options discussed.
A feasibility study and preliminary site/route selection stud3 for the particular alternatives
would be the next step in providing utilities to the study are A. Because of the long lead
times associated with this type of infrastructure development immediate action for
defining alternatives is recommended. Feasibility studies can be conducted once interest is
expressed by local cities and utilities without a service commitment from these entities.
The direction of this report has been guided by representatives of many of the study area
stakeholders. These representatives comprise the IH-33W Corridor Study Task Force and
served on a strictly advisory basis under the direction of County Commissioner Don Hill.
The Task Force expressed a desire to submit this report to their respective Boards or City
Councils for review and support. Appendix D to this report has been included to exhibit
responses from governing bodies supporting this report
e Governing bodies are asked to take note of the recommendations found in this study
regarding possible pipeline and facility locations when involved in their development
process. It will be particularly helpful if the various cities can help provide for right-of-way
or needed sites for infrastructure during the planning, zoning, or platting processe
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DRY'1111361SMONESMARY.DOC 1
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Background
The Upper Trinity Regional Water District (Lt'TRWD) was formed in 1989 by an act of the
Texas Legislature. The District's mission is to address the needs of the Denton County
pianrd:ig area for an adequate long-term water supply and to provide treatment of water
and wastewater as well as solid waste and storm water services. Tl•e District is a
"conservation district" with no taxation authority, and supports itself by providing
wholesale services to member entities - towns, cities, and water utilities within its service
area. A current list of the member entities of the UTRWD can be found in Appendix A.
The Upper Trinity Regional Water District and Denton County leadership have recognized
the need for long-range planning to accommodate the demands for water and wastewater
services in the west and southwest sections of Denton County. Recent large-scale
developments have primed the area for rapid growth and there was a general recognition
by local and county leadership that a planned expansion of utilities produces superior
facilities at the lowest cost and can influence the direction and type of growth which occurs.
The purpose of this study was to investigate alternatives for providing water and
wastewater service to the study area. The study area has been defined as an oval shaped
plume centered around the [H-351V corridor between Denton and Denton Creek as shown
in Figure 1. The study area will be further refined in the growth outlook section of this
report.
{ The study is intended as a regional planrdng document for UTRWD, and can also be useful
as an educational tool to present facts, projections, and options to the local leadership In the
study area and aid in their infrastructure development planting. This report does not
examine the economic or political feasibility of the options presented. A more detailed j
analysis of particular alternatives would be the next step in the effort to provide utilities to
the study area.
the study team was aided in their development of alternatives by the IH-35W Corridor
Study Task Force.' The Task Force was chaired by Denton County Commissioner Don Hill.
Members of the task force included:
Name TWO Representing
Don Hill, Chairman County Commies oner Denton County
Yvonne Jenkins Mayor City of Argyle
Slave Mcssman Former Coundlmember Town of Flower Mound '
tee Head Board President Argyle Water Supply Corp.
Howard Young Counalmember City of Justin
Ronl Beasley CC:1nCilmember City of Denton
• Carla Hardeman Maya Pro-Tom City of Northlake •
Members of the Usk force functioned in a Welty advisory rote, providing impaUnt local Insight for the benefit of the study
Brea.
OFNII I156"WZONE1WZRPT.DOC 2
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UPPER TRINITY REGIONAL WATER DISTRICT
The purpose of the Task Force was to aid the UTRWD and its consultants in the
development of alternatives for service in the study area and to report the results of this
study to their respective governing bodies for study and comment. The insight provided by
the Task Force contributed greatly to the success of this project and their efforts are greatly
appreciated.
Denton County and many local elected officials have long been supportive of a regional
enterprise to provide wholesale utility service to towns, cities, and water utilities in the
Denton County area. Former Denton County Commissioner Lee Walker was instrumental
in the creation of the UTRWD and her successors have continued their involvement in the
long-term planning of Denton County utilities through participation on studies such as this
one and through their seat on the Board of Directors of the UTRWD. More than 25 cities and
towns are represented directly or indirectly on the Board of Directors of the UTRWD (See
Appendix A).
The results of this study are expected to be used by the UTR51'D, and possibly by some of
the cities involved, to develop specific action plans. The action plans of the UTRWD A-M
assist UTRWD members and utilities in preparing for and addressing growth needs in the
IH-35W Corridor between Fort Worth and Denton
Study Area Growth
i
Growth Outlook
Boundaries of Study Area
The study area extends south of Denton along the IH-35W Corridor to Denton Creek. The
boundaries of the primary planning area includes Denton Creek on the south, the
intersection of Highways FM156 and FM407 Qustn Wastewater Treatment Plant) on the
west, the intersection of Highway 377 and FMI171(near Flower Mound Water Terminals)
on the east, and intersection of Highway 377 and FMM0 (Denton Water Terminals) in the
north. The Peripheral Planning Area extends west to the County line and includes the
intersection of FNI156 and FM2449 in Ponder. Also examined in this study is the area south
of Denton Creek, but north of the Texas Motor Speedway. This latter area has In the past
been included in raw water service studies by the Tarrant Regional Water District and the
• City of Fort Worth. The City of Dallas has not included this portion of Denton County in the
raw water supply studies they have conducted for the rest of Denton County. Service to this
area by the UTRWD is possible but will require close coordination with Tarrant Regional
Water District and the City of Dallas to ensure adequate raw water resources are available.
The primary planning area in yellow is where growth is expected to occur along the
• IH-35W Corridor, The peripheral planning area in brown is where growth will occur but O O
not initially.
r
DFOM I I MS3SAZONEVOQRPT.DOC 3 {
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( Growth Engines-Major Developments
Major developments that fuel growth in the IH-35W Corridor are Intel, IC Penneys,
Alliance Airport Federal Express and American Airlines (See Figure 1). Alsu, acting as
engines for growth are the DFW Airport and the northward population expansion, of
Fort Worth and westward growth of Flower Mound. The NAFTA Highway for travel to
and from Mexico through the United States to Canada follows this corridor.
Major Land Holdings
Several land holdings will influence the growth in the IH-35W Corridor (See Figure 2).
Richard Rainwater recently purchased the Carter-Crowley Holdings north of Argyle.
Facing the Rainwater property across IH-3511; is the Perot Holdings (Hillwood-McCutchen)
which includes the highly desirabie Pilot Knob area. Perot also owns land north of the
Texas Motor Speedway and north of Intel. E-Systems has holdings at several key
intersections including, IH-35W/Fb1114, IH-35W/Crawford Road and Highway
377/F1ll171. Land holdings of Rainwater, Perot and E-Systems can lead to industrial,
commercial and residential developments as water and sewer facilities become available.
There are sixteen major land holdings along the IH-35W Corridor.
Growth Influence Plumes
Plumes of growth are aimed at the corridor from the south, east north and west in
that order of importance (See Figure 3). The greatest potential is a northward expansion that
is an outgrowth of Intel, Alliance Airport and Speedway developments. A second growth
influence seems to be from the east directed toward Argyle as a result of the Rainwater
acquisition. A third growth influence is aimed at the Highway 377/FM1171 intersection
( fuel^d by population increases from Flower Mound. From the City of Denton, south will be
a trend of development already established. Commercial and residential development will
be fueled in the Northlake/Argyle area by land availability, easy access and excellent
exposure to the interstate highway. Growth from the west will begin when Perot begins to
develop the Pilot Knob property, or when Ponder begins to grow.
Alternative Growth Scenarios
Growth scenarios for the IH-35W Corridor include three alternatives; a "boomer city"
scenario; a traditional low growth projection; and a mid-range most likely outcome (See
Figure 4). Northlake and Argyle have to date not reacted to the metroplex expansion as
have Flower Mound and Frisco. They have remained traditionally rural with the exception
of some residential developments. Several cities, however, such as Flower Mound, Frisco,
Coppell, Lewisville have been greatly influenced by the DFW Airport and the northward
0 movement of the metroplex population Flower Mound, Frisco, and Allen are "boomer
cities", having increased in population on the order of tens of thousands of people between
1990 and 1995 according to data from NCTCOG. Since the same growth generators will
influence both Northlake and Argyle, it is conceivable that Northlake and Argyle could
grow at a "boomer city" rate. It is not likely that Northlake and Argyle would follow the
low growth traditional projections depicted on the chart for the 1990/1995 NCTCOG data.
A most likely outcome is somewhere between the "boomer city" scenario and the p
traditional projection This line is shown on Figure 4 as the potential growth rate parallel to
Frisco's growth rate expectations, and this projection would indicate a population of 20,000
people, in Northlake an d Argyle by the year 2010.
Of W11 t 150SWZONESWZRPT DOC 4
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CORRIDOR OF INTEREST FOR
WATER AND WASTEWATER PLANNING
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LEGEND:
Mootn tor
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PRIMARY PLANNING AREA INCLUDES
/r/ r d ,E ® Hwys 377A830 INTERSECTION
~A ® Hrys 377A171 INTERSECTION
• r+ Cl^, eK_.__ 0 Hwys IW407 INTERSECTION
DENTON CREEK `
Allinnca / e
Cantor t PERIPHERAL PLANNING AREA I
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FIGURE 1 UPPER TRINITY REGIONAL WATER DISTRICT
Pfvved to
CH1M HILL and Brown W Root, Ino.
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Y MAJOR LANDHOLDERS IN 1-35W CORRIDOR
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PPER TRINITY REGIONAL WATER DISTRICT
Prowsi a*
CH2MHILL and BrownWRoot,lno.
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PLUMES OF GRO
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(UPPER TRINITY REG'GtJAL ti'LATER DISTRICT
CH^MHILI. and BrownCeRoot,lnc.
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BOOMER CITIES POPULATION DATA
90,000
ProJeited
Growth
J, .
80,000 `
70,000 , •
60,000
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20,000
oll
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• yneco
Low Growth Rats
Argyle _Northlnke Community
1980 1990 1995 2000 2010 2020
• SOUTHWEST SERVICE ZONE STUDY •
FIGURE 4
UPPER TRINITY REGIONAL WATER DISTRICT
Prm.w'ed Oy:
CH2M HILL and Brown IV Root, inc.
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UPPER TRINITY REGIWL WATER DISTRICT
Planning Ahead For Growth
Water and wastewater infrastructure is critical for the long-term development of a
community. In the past, some communities have sought to eliminate or slow growth
through the policy of not providing the infrastructure needed to sustain growth. While this
policy had its intended effect in the short term, in nearly all cases growth eventually
occurred, often with serious adverse effects on the cost of providing infrastructure and on
the quality of the environment.
Concerns With Current Systems
Currently, development in the rural areas of the study zone are primarily served by
individual well systems for water supply and individual septic systems or aerobic systems
for wastewater service. There are a number of inherent problems with these types of
service.
• Groundwater Depletion - Continued dependence on ground water sources is
resulting in the depletion of groundwater in the Denton County area. A report titled
"Denton County Water and Wastewater Study Regional Master Plan for the Year
2010" by Espey, Huston & Associates in 1488 determined that the groundwater
recharge rate in Denton County was approximately 53 Million Gallons per Day
(mgd). Even in 1988, groundwater usage was estimated at 6.0 mgd, resulting in a net
mining of groundwater levels. The Espey Huston report estimated that if the
groundwater usage continued to rise at then current levels, the available storage
would be consumed by the year 2010 resulting in a groundwater yield reduced to the
5.5 mgd available from recharge. This scenario would obviously have disastrous
effects on development, the quality of life, and the environment.
• Development Density Limitations - A second problem is the size of the
developments capable of being built when connection to a septic tank or aerobic
system is required. Even under ideal soil conditions, a septic tank leach field will
require about one acre of land per dwelling. The soil conditions in Denton County
are less than ideal resulting in leach fields requiring between ore and a half to two
acres minimum area per dwelling. Obviously, septic tanks or aerobic systems can be
made suitable for low density development but are not a viable option for high
density residential or industrial or commercial development.
• Risk of Environmental Degradation - A third consideration is the increased risk of
• environmental degradation associated with individual treatment systems. Treatment
systems require a significant amount of maintenance in order to function properly.
The ability to monitor the effectiveness of a large number of individual, private
systems can be an expensive and difficult proposition for a local government. In the
past, utilities which have allowed septic systems have incurred considerable cost to
connect those facilities to collection systems a.`' r growth and maintenance issues
have reduced the effectiveness of septic systems.
• O
Benefits of Regional Infrastructure Planning
Coordinated, regional planning can reduce the costs and environmental impacts of
individual systems while at the same time shaping growth in the direction the planning
VA, %I 15691SN20N E$AZRPT DOC 5
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UPPER TRAITY REGIGNAI WATER DISTRItr
agency wishes to go. Regional planning allows for economies of scale to be utilized to their
fullest potential. Sharing of facilities on both short term and long-term basis can provide
cost savings to the entities involved and may even result in operational improvements
through the use of under utilized facilities. Large capacity water and wastewater
infrastructure is an essential building block for major developments such as Fort Worth has
recently experienced with the Intel computer chip plant and the Texas Motor Speedway. A
decision to make that type of infrastructure available in a certain area can encourage or
discourage quality development.
In lieu of sound leadership on these issues, developers intent on developing the property
they own will act unilaterally in their own perceived best interests. The leadership vacuum
will create the situations described above where a lack of a regional plan increases costs and
strains the environment in the long-term.
Water Concerns
Existing Water Resources And Suppliers
Wholesale Suppliers
Currently there are three major wholesale suppliers of water to entities within Denton
County. The City of Dallas provides raw water to the Cities of Denton and Lewisville and
treated water to the Town of Flower Mound, The Colony, the City of Ca rollton, and the
City of Lewisville. The City of Fort Worth has extended service to the intersection of
IH-35 W and FM114 and currently provides service to the Texas Motor Speedway. The
UTRVID currently provides water to several customers in the corridor including the Town
of Flower Mound and the Argyle and Bartonville Water Supply Corporations. The UTRWD
expects to serve Justin, Northlake, and Ponder in the future. The UTRWD and the City of
Denton are cooperating on several raw water, wastewater, and treated water projects.
Two other suppliers, the City of Lewisville and the City of Denton have the facilities to act
as wholesale suppliers if they desire and have served in that role in the past. However, both
1 have expressed a preference for the UTRWD to serve that role through thew participation in
sponsoring the formation of the District and the transferring of existing wholesale contracts
to the District. Both cities support the UTRWD as the best approach for regionalizing water
• supply in the Denton County area, allowing each city to concentrate on the service of their
own retail customers and not become involved in the wholesale marketing of water in the
long-term
Retail Suppliers
There are several retail suppliers who could serve additional customers in the study area.
• Among those entr:aes which will most likely be serving population in the study area are the ® O
j Town of Flower Mound, the City of Denton, the Argyle Water Supply Corporation, the
City of Justin,'.he City of Ponder, and the Bartonville Water Supply Corporation. Denton,
C Justin, Ponder, and Flower Mound typically serve retail customers within their respective
DFwn i f,%nWZONES WZRPT, Dot 6
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UPPER TRINV REGIONAL WATER DISTRICT
City Limits. In contrast, the Argyle WSC serves the City of Argyle along with a large
t unincorporated area in the center of the IH-35W corridor. The Bartonville WSC serves
Bartonville, Copper Canyon, Double Oek part of Highland Village, and unincorporated
areas north of Flower :Mound.
Raw Water Sources
The water provided from suiface water sources to cities and utilities in the Denton County
area comes primarily from one of two local lakes: Lewisville Lake and Lake Ray Roberts.
Future sources include East Texas fakes such as Cooper Lake, which was recently renamed
Chapman Lake, and possibly those lakes serving the City of Dallas such as Lake Tawakoni,
Lake Ray Hubbard, and Lake Fork. Groundwater supplies help meet current needs but are
not adequate for future growth The City of Dallas owns more than 80 percent of the water
rights in the three local reservoirs in Denton County, but have sold raw water on a
wholesale basis to water suppliers including the UTRWD, in the Denton County area.
Water from East Texas lakes can reach Denton County via transfers within the City of
Dallas system or in a planned pipeline from Cooper Lake to Lewisville Lake.
The City of Dallas has included in their long range plans the sale of raw water to all areas of
Denton County except for that portion located south and west of Denton Creek. These
Dallas resources are in addition to water rights owned by the City of Denton and the
UTRWD to serve their customers. if demand for raw water exceeds the capacity of local
lakes, other Dallas resources including certain East Texas lakes may be utilized to increase
available supply.
The Tarrant Regional Water District supplies raw water to Fort Worth and other water
retailers in the Tarrant County area. They have included the southwest portion of Denton
County in their planning area for determining the amount of raw water required.
Upper Trinity Regional Water District Resources
The UTRWD currently operates a wholes:', potable water system serving eight retail water
suppliers. The system is built around a state-if-the-art 20 mgd (expandable to 150 mgd)
water treatment plant which treats water from Lewisville Lake. A map of the current
UTRWD system is shown in Figure 5. The UTRWD system is designed and built to provide
for both current and future needs. Permanent facilities are generally sized for future
demands and short term facilities have been designed to either utilize unused capacity of
existing systems or to revert to some other use at some point in the future (i.e. temporary
transmission pipelines may become part of a customers future distribution system). System
• reliability through interconnections with other service providers has been a long-term goal
of the UTRWD. r
The long range +Ians of the District call for it to provide treated water to all areas of Denton
County except for that area south of Denton Creek in the southwest portion of the County.
That portion of the County can be served by the District or Fort Worth using raw water
• supplied by the Tarrant Regional Water District. Fort Worth is already providing limited
treated water service in that area. In addition, it was anticipated that the Cities of Denton •
and Lewisville would continue to supply treated water to those areas located within their
city limits.
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UPPER TRINITY Ri GIGNAL WATER DISTRICT
Existing Water Facilities
There are a number of existing treatment and conveyance facilities located in or near the
study area. Some of these facilities could play a strategic role on an interim basis. Those
facilities most likely to be useful in the serving the study area are shown in Figure 6. The
following paragraphs describe what utilities are available in this area and provides some
details on how they can help provide interim service to the study area.
Upper Trinity Regional Water District
The UTR WD is currently completing their new 20 mgd water treatment plant and a series of
wholesale distribution pipelines as shown in Figure 5. Current projections indicate their
will be some excess capacity available in the water treatment plant during the first few
years of operation. The plant is easily expandable and can be readily increased in sue when
additional demand warrants, The closest delivery point from the UTRWD system to the
study area is through an 18" line to the Argyle Water Supply Corporation on Fincher Road
near Fb11830. This connection is sued to serve the demands of both the Argyle WSC and
the City of Northlake until at least the year 2010. A second 18" line serves the BartonviDe
Water Supply Corporation at Copper Canyon Road at Post Oak, This tine is intended to
serve the needs of the Bartonville WSC until the year 2010. The UTRWD plans a major
extension westward through the Flower Mound, Bartonvine WSC, and Argyle WSC service
areas when needed to serve customer% in the IH-351V Corridor and the western portion of
Denton County.
City of Denton
The City of Denton has several possible connections between their system and the study
area. Denton currently connects to the UTRWD system near the intersection of IH-35E and
Highway 288. Denton also has a 16" Line located along IH-351V about 3'4 of a mile south of
Airport Drive. A second 16" connection is available near the intersection of Highway 377
and Hobson Road. Each of these points is well connected with the remainder of the Denton
system and could easily be extended to serve growth which occurs near the terminus
points.
Argyle Water Supply Corporation
The Argyle WSC currently is the water entity Ln the best position to serve much of the study
area. The Argyle WSC has expressed a willingness to transport water for the UTRWD via
their internal distribution piping to serve the City of Northake. This arrangement would be
on an interim basis and the cost of the transmission of water would be at the UTRWD's
expense. The Argyle 1VSC system includes several connections at or near IH-35W between
FM407 and Crawford Road. The closest current connection to the City of Northlake and the
southern section of the study area is a 11" connection located about 1.2 miles east of IH-3511;
along FM407. There is a possibility that an existing casing installed under IH-351V in
connection with an earlier service at Old Justin F--ad could be used for a future line.
Town of Flower Mound
The Town of Flower Mound has a large section of undeveloped land in the southern
portion of the study area, The town currently has annexed land along FNI1171 west to
Drwn 11 s69)GWZ0N65WZRPT DOC 8
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Pr%wod 4+
CH2M HILL and Brown & Root, Ino.
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•
UPPER TRINfTY REGIONAL WATER OISTRICT
Highway 37/7. To serve expected development in this area, the town has installed a
20" main to a point npar the Tour 18 development located along Fh11171 about 2.5 miles
east of Highway 3777.1" utilization of this line is extremely low at this time and will
remain so until significam -Towth occurs in the study area. The Town of Flower Mound has
expressed a willingness to assist the UTRWD in transporting water to the corridor through
their line.
City of Justin
The City of Justin currently operates a municipal water system using wells as the water
source. Growth in the Justin area will require hard decisions to be made regarding the
expansion of the Justin distribution system and obtaining additional water supplies via
more groundwater wells or connection to a surface water supply.
City of Ponder
Ponder operates a municipal water system using wells as a water source. Ponder faces
many of the same issues as Justin in regard to the expansion of their system, although
growth is not expected to happen as quickly in the Ponder area. The UTRWD's long range
planning includes Ponder for eventual connection to the surface water s} stem
City of Fort Worth
The City of Fort Worth in the past has expanded their system northward as necessary to
serve the continuing industrial and commercial development within their city limits and
certain other cities in that area. An informal boundary for service has been established at
Denton Creek although there are no formal agreements in place which dictate that
Fort Worth must provide service to all areas south of Denton Creek. The limits of service
have been political and practical decisions based on the need to serve customers within
expanding city limits and the desire to accommodate developers offering projects providing
potentially large tax bases. The supply lines to the study area are located at an extreme edge
of the Fort Worth system Currently there is little redundancy this far north in the system
and system reliability could become an issue.
Water Service Strategies
Short Term Strategies
A number of options exist to serve growth in the short term. Interim or short-term options
are shown schematically in Figure 7. Which option is best depends on exactly where the
growth occurs and the magnitude of the growth. Growth near the center of the [H-35W
Corridor can be served from the Argyle WSC via an extension from the terminus of the
I2" line or an extension of smaller lines within their distribution system A second option to
serve growth in this area is to extend the 20" line from the Flower Mound terminus along
Fh11171 to IH-35W. This option has th_ advantage of providing significantly more water to -
• the study area but the larger line would cost more than the smaller lines of the Argyle WSC
option. Either of these options can be used to provide water to the Cities of Northlake and
Justin.
DrM t f 1564)SWZONESWMT.DOC 9
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OPTIONS FOR WATER SERVICE
1
DENTON
WATER TERMINUS
oof"
HMy ura DENTON F
i ' WATER TERMINUS
rra ~
u~ Y
e!!M Y
a ARGYLE
WATER SUPPLY
Y
H 407
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UPPER TRINITY EXTENSION
ARGYLE
W T'ER SU~Pl Y,
ALL PIPELINE ROUTES
DEPICTED ARE CONCEPTUAL,
NO PIPELINE PATHWAYS
L _ ~u HAVE BEEN DETEPIAINED YET.
I
FLOWER MOUND
WATER TERMINUS
$ ToHtta.
- Speedway o
iti
F-V V
LEGEND:
--r a tia.aMwiM PLOWER MOUND EXTENSION
I ARGYLE EXTENSION
DENTON EXTENSION
Ilie!N:e ~qr~ a UPPER TR.,41TY EXTENSION
~~fente / _ ; 1-35 SERVICE UNE
f _
r' 1)~ SOUTHWEST SERVICE ZONE 51 UDY i I
FIGURE 7 y'"""°'
UPPER TRINITY REGIONAL WATER DISTRICT
Ffgq'M A~
CH2M HILL and Brom WPloA Ino.
13
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UPPER TRINRY REGIONAL WATER DISTRICT
Growth which occurs in the extreme scuthem portion of the study area could be served by
either the Flower Mound or Argyle WSC extensions or could be supplied by an extension of
the Fort Worth system.
Further north in the IH-35W Corridor near the Pilot Knob area, growth can be served
through a southward extension of the Denton system or a westward extension of the Argyle
WSC system. The Argyle WSC would probably require a second source of water in order to
supply large scale development in the Pilot Knob area on a long-term basis. This can be
accomplished through an additional tap on the UTRWD system parallel to their existing 18"
connection, a new connection elsewhere in their system, or a connection with the Denton
system which passes through UTRWD water. Denton city limits include all of the Not
Knob aria adjacent to IH-35W south to Crawford Road. Water service in this area can be
made available relatively easily through extensions of the lines along iH-35W and
Highway 377.
Long-Term Strategies
Long-term growth in the study area is expected to exceed the capacity provided by any of
the short term alternatives. Based on regional plans accepted lr., the Texas Water
Development Board, long-tern supplies in the study area can best be provided out of raw
water resources already developed by the City of Dallas and supplied through the UTRWD.
The study area (with the exception of that area south of Denton Creek) is outside the
approved regional plan developed by the Tarrant Regional Water District in cooperation
with the City of Fort Worth Accordingly, the City of Fort Worth is not expected to extend a
major system into the study area except within their city limits. The City of Denton is also
( not expected to be in a position to be a permanent supplier to the corridor.
The UTRWD has put forth a long range plan calling for a large diameter line to be nut from
their existing booster pump station at FN1407 and Sellmeyer in eastern Flower Mound to a
point near the intersection of Fh1407 or FM1171 and lH-35W. The exact route of such a
pipeline will depend on the actual patterns of growth and the needs of the utilities
involved. This line would provide the main source of supply to the study area.
A number of interconnections to existing systems would be possible under this scenario
which would improve the reliability of both exising and planned systems. A new UTRWD
transmission main to the study area would provide both Flower Mound and the Argyle
WSC with second connections to the UTR WD on the western edge of their systems. In
addition, extensions could be made to the Fort Worth system for use on an emergency basis
and to the Denton system for emergency use and as an alternate delivery routs for service to
e the City of Ponder. Service to the City of Krum is planned off a line being extended
northward to Sanger by the UTRWD.
Recommended Strategies For Water Supply
This report has presented a number of strategies for dealing with future water &mands in a
O conceptual format. The next stage of the process should be a detailed feasibility study of the e e
alternatives which are best suited to serve growth in a particular area. Water suppliers and
government entities should be prepared to act quickly once development is im- . znt and
t ~
VVIi 11$69rSWZONEsWZRPT DOC 10
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UPPER TRMITY REGIONAL WATER DISTRICT
infrastructure comnutments can be made. Based on the findings in this study, the strategies
which appear most feasible are:
1. Short Tenn - Provide water to the center of the study area including Justin and
Northlake via the Argyle WSC. Install extensions from the 12" terminus of the Argyle
WSC as appropriate to serve growth in the corridor. As demands increase, install an
extension of the line from Flower Mound looping the system in with any expansion of
the Argyle WSC. Either or both lines could be installed under a joint development
agreement. Coordinate with Fort Worth to serve the extreme southern portion of the
study area if they have a desire to do so. Denton would serve growth at the northern
end of the study area as economically feasible.
2. Long-Tenn - Install a transmission main from the UTRWD's Joint Booster Pump Station
on FM407 westward to the Ill-35W Corridor. In conjunction with the new, permanent
line, the UTRWD could provide a second delivery point for the Flower Mound and
Argyle WSC systems. When mutually convenient, connect to the City of Fort Worth
iI system for redundancy on an emergency basis. Connect to the City of Denton system for
emergency reliability and to provide a second point of connection between the UTRWD
and City of Denton systems.
3. Utilize cooperative agreements wherever possible to share the costs of facilities and
provide benefits to the greatest number of entities. For example, the Flower Mound
extension could be constructed jointly by Flower Mound and the UTRWD. Flower
Mound could use the line to serve the weste.i1 portion of town while the UTRWD could
use the excess capacity to serve other customers in the study area. Croce the UTRWD
transmission line is completed, the UTRWD capacity in the Flower hfound extension
could be sold back to the Town of Flower Mound and the line used as part of their
distribution system. Likewise, an extension of the Argyle WSC system could be used as
part of the distribution system as system demands increase.
4. Develop participation contracts for water supply with interested parties in advance of
facility design.
5. Be prepared to provide service to other cities (including, Ponder) whenever needed and
desired.
6. Conduct a feasibility study for service to the study area. The UTRWD currently has
plans for an expansion of their Regional Water Treatment Plant to be on-line by the
summer of 2901. To be included in that expansion a feasibility study should be
s underway no later than the spring of 1948. This timing allows sufficient time to conduct
the study, negotiate the contracts, and design and build the required pipelines and plant
improvements.
® f~ O O
DFWi17156sSW ON&MRPT.DOC 1 f
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UPPER TRINITY REGH NAL WATER OiSTRICT
Wastewater Concerns
Current Wastewater Management
Wastewater management in the planning area is currently handled by one of the area
municipal wastewater systems, or by individual septic systems located on each property E
ownees site. The cities of Denton, Ponder, and Justin provide wastewater service for some
of the areas within the overall study area. Descriptions of these wastewater facilities and
their potential impact on the planning area are summarized later in this section. Property
owners outside the extent of the above mentioned systems must rely on septic systems.
Septic systems are often the practical choice for rural or very low density arear,. Mthough
such systems are relatively simple, they are quite Limited in their ability to handle
disposable solids and high flows, especially under saturated soil conditions. For these
reasons, septic systems represent more of a necessity of location rather than a preferred
choice. As an area increases in population density, technical and economic conditions
become increasingly favorable for municipal-owned wastewater collection systems and
treatment facilities.
A more detailed discussion of wastewater system fundamentals, septic systems, wastewater
collection sewer systems, and wastewater treatment plant characteristics is provided in
Appendix C.
i
Wastewater Treatment Plant Capacity Planning
The commonly used planning standard for wastewater is 100 gallons per day per capita. In
other words, l mgd (million gallons per day) of treatment capacity is the usual planning
average for a population of 10,000 persons. In actuality, WWPP capacity is maintained in
excess of the design capacity of a given planL When average flows reach 75% of the
permitted capacity of a WWTP, the facility's owners are required by state and federal
authorities to begin planning for expansion. In this way, the WWIf has an excess of
capacity which acts as a safety margin.
Existing Area Facilities
• There are four wastewater treatment facilities servicing the planning area. Location, service
f area, capacities, and current wastewater loading are discussed for each of these.
1 City of Denton WWTP
The City of Denton's MM currently has a permitted capacity of 15 mgd. Under a contract
® with UTRVVD, the City of Denton serves residents of Argyle by utilizing a force main to
pump flows into one of its collection system basins. The current utilization of Denton's 0 40
WVV'TP is 10.9 mgd, which is 73% of its permitted capacity.
OFW11115699WZON!✓$ V6VT DOC 12
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UPPER TRkTY REGICAAL'WATER DISTRICT
City of Justin WWTP
The City of Justin's WWTP has a currently permitted capacity of 0.40 mgd. The current
utilization of their facility is 0.158 mgd which is 40% of its permitted capacity.
City of Ponder WWTP
The City of Ponder's WWTP has a currently permitted capacity of 0.45 mgd. The current
utilization of their facility is 0,054 mgd which is 12% of its permitted capacity.
i
Trinity River Authority Denton Creek wWTP
TRA's Denton Creek WWTP has a currently permitted capacity of 2.5 mgd. The current
utilization of thew facility is approximately 1.0 mgd, about 40% of permitted capacity. But
planned growth in TRA's existing service area in residential, commercial, and industrial
wastewater system users indicates that this facility may be strained to keep pace with an
increasing demand for wastewater treatment capacity.
Area Wastewater Service Alternatives and Recommendations
In considering options, it must be recognized that additional wastewater treatment capacity
will be required under all options or strategies - whether it is expansion of existing facilities
or construction of new ones. Routing flows to an existing facility without a corresponding
increase in its capacity may provide a short-term handling solution but in the long-tern,
( expansion of one sort or another must occur.
It should be emphasized that modern, well-cicsigned wastewater treatment plants with up
to date technology actually function as wafer reclamation f olities: they operate efficiently to
produce a high quality clean water product. Such a plant should be utilized for this area.
Accordingly, this report will refer to the proposed facility by the more appropriate term of
"water reclamation plant".
The following alternatives are recommended as a result of this study:
• Utilize Existing Facilities - Although the cities of Justin and Ponder are only
currently utilizing 40% and 12%, respectively, of their permitted capacity, these a.-e
relatively small facilities. The Justin WWTP can only provide an additional 0.14 mgd
of treatment capacity before it reaches the 75% level requiring plans for expansion. It
is likely that Justin will need this capacity just to accommodate its own interior growth
A in the near future.
The City of Ponder can provide an additional 0.39 mgd of treatment capacity.
Provided growth is moderate in this area, this capacity may be sufficient to handle
growth in its own immediate area. Because Ponder is located at a greater distance
from center of the planning area and is "upgrade' in the area's drainage basin
8 (requiring long force mains to reach the facility), Ponder does not appear to be a viable
source of treatment capacity for that portion of the planning area facing immediate 9
and large scale growth.
J ( the City of Denton has almost no excess treatment capacity before reaching its 75%
threshold for required expansior, Providing Denton does construct additional
OF& 1115695WZ0NESWZRPT DOC 13
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UPPER TA1NITY REGiCNAl WA TEN WRiCT
capacity, this could be a resource for wastewater treatment for the area within the
planning area that it already services (north portion of Argyle). However, it is
"upgrade" in the drainage basin, and additional force mains would be required to
transport wastewater into its regular collection system from any areas farther south in
the planning area.
TRA's Denton Creek facility has some excess capacity "on paper", but the Denton
Creek facility already has a commitment to provided service for new users in its
immediate area. In addition to continued industrial expansion in the Alliance area, the
cities of Roanoke, Westlake, Matclatl Creek and Trophy Club, immediately adjacent
to the Denton Creek facility, •ted to continue rapid expansion. The Denton
Creek facility has recently co to provide wastewater service to the southern
part of Northlake, where a to . A commercial development are planned. Also,
because it is located outside the wainage basin of the 1H-35W Corridor planning area,
any wastewater flows would require force ouins to reach the Denton Creek facility.
Construct an Additional Regional Facility for Water Reclamation - As discussed
above, there are no existing facilities that can efficiently service this area on a long-
term basis. Failure to provide comprehensive long-term planning for wastewater
service will leave this area vulnerable to construction of one or more municipal utility
districts (b1UDs), which may not be properly designed or operated. Such inadequate
facilities may end up subsequently inherited by the cities. In the event no wastewater
facilities are constructed in this basin wastewater flows generated in this area will
have to be pumped via force mains into other service areas.
( The area north of Denton Creek, east of Justin, and including Argyle and the western
part of Flower Mound forms a natural drainage basin which flows southeast towards
the upper end of Grapevine Lake. A new facility located at a low elevation in the basin
would be ideal from a collection system perspective.
A new water reclamation facility committed to serving this area offers a number of
advantages and is the recommended strategy. From a technical perspective, a modern
facility operated by a regional authority is a desirable option. This option would also
offer significant advantages in funding capability, technical and process superiority,
plant rebibVity, and operating and maintenance cost considerations. Following this
strategy, the facility can be designed to accommodate a phased approach for
managing future expansion under a Master PIan. The plan could be implemented in
phases with upstream package plants on an interim basis until the flows and distance
t) make the permanent plant feasible. The Master Plan under this strategy provides the
system users and related stakeholders a well-conceived blueprint for how this water
reclamation facility will provide service into the future.
• Locate and Acquire a Permanent Site. -1Vhether or not the proposed water
reclamation plant would be constructed initially or as part of a later ph.ve, it appears
imperative that a site be located and acquired as soon as possible in cooperation with
6 interested cities. Advance selection and acquisitive of the site will avoid a potentially 0 4D
contentious process that may occur if the decision is delayed until after significant
growth has already occurred in the most suitable areas. A feasibility study should be
/ conducted as soon as possible to examine the economic feasibility of the alternatives
and perform preliminary site locations for the plant and pipelines.
DFW) 11156MWZ0YErWZADT.DOC 14
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OPTIONS FOR WASTEWATER SERVICE
Hxy 244G "
rte.. Y I Z~'
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JUSTIN * .
WASTEWATER
TREATMENT
EXPANSION -
QP!
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~-ZONE OF OPTIMUM
SITIIJG FOR FUTURE
WASTEWATER
Moior 0 r RECLAMATION PLANT
SOM Y _ I`
Hay to ~ TRA K DENION
WNTP
WWTP
CREEK
f
llirrce
renter
SOUTHWEST SERVICE ZONE STUDY R`
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FIGURE 8
UPPER TRINITY REGIONAL WATER DISTRICT
Prvrb tM
CHZM HILL and Brown W Raot, If".
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UPPER TRINRY REGCWL WATER DISTRICT
EXECUTIVE SUMMARY
UTRWD Southwest Service Zone Study
The IH-35W Corridor between Denton and Fort Worth is poised to become one of the
I fastest-growing areas in the DFW Metroplex. The Upper Trinity Regional Water District's
(UTRWD) Southwest Service Zone Study documents current and projected hdrastructure
needs in the area. The study benefits and a:-ns are several-fold:
• Help UTRWD members and utilities anticipate and respond to growth roeds in the Ili-
35W Corridor between Fort Worth and Denton
• Provide a regional planning document for use by UTRWD, as well as cities, towns,
utilities, and other interested entities located in the study area
• Support local leaders by offering the facts, projections, and options needed for effective
infrastructure development planning
• Establish the foundation for specific action plans to be developed by UTRISID and other
interested entities
/ Tlds report does not examine economic or political feasibility. A more detailed analysis of
particular alternatives would be the next step toward providing utilities to the study area.
Study Results and Conclusions
Unmet infrastructure needs clearly are emerging in the study area and will continue to
grow. A comparison of service provider capabilities to meet there needs shows that the
UTRWD is well positioned to respond to both interim and long-term service demands.
Many of the affected local communities are UTRWD members. The District has developed
strong working relationship with other cities and utilities in the study area. The cooperative
spirit developed through these relationships bodes well for the success of a regional utility
system
Of the water purveyors in the area, UTRWD is the only supplier with both a regional
• mission and the ability to quickly bring the needed capacity online. Initial discussions with
utilities and governing bodies in the study area have been promising. With regard to
wastewater service, a new regional water reclamation facility is recommended. UTRWD is
prepared to assume a leadership role in the development of this facility, in concert with the
local communities. Early acquisition of a suitable site is recommended to forestall inevitable
obje=lions from neighbors when the study area becomes more densely developed.
° Growth Trends
The study area is an oval-shaped plume along the IH-35IV Corridor between Denton and
( Denton Creek. Several major developments are fueling growth in this area, including Intel,
CFA; 115569,SAZ0NESWZRPT DOC 1 `
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UPPER TRINITY REGIOML WATER DISTRICT
JC Pernneys, Alliance Airport, Federal Express, and American Airlines. Other growth
influences include development associated with DFW Airport, Fort Worth's northward
population expansion, and the westward growth of Flower Mound. The NAFTA Highway
between Mexico and Canada follows the corridor.
In addition to existing developments, 16 major land holdings He within the study area and
along the corridor. Industrial, commercial, and residential development can occur as water
and sewer facilities become available. The Rainwater, Perot, and E-Systems holdings are of
particular importance.
Growth plumes are aimed at the conidor from the south, east, north, and west, in
descending or"er of intensity. The greatest growth potential lies in the soutl em portion of
the study area, driven by the northward expansion from the Intel, Alliance Airport, and
Texas Motor Speedway developme,'As.
From the east, the Rainwater acquisition is expected ;c direct growth toward Argyle. Land
availability, easy access, and excel'.ent exposure to IH-35W will fuel commercial and
residential development in the Northlake/Argyle area. As previously mentioned, Flower
Mound also is influencing growth from the east. From the north, the southward
development of the City of Denton is an established trend. Growth from the west will begin
when Perot develops its Pilot Knob property and when the Ponder population expands.
The magnitude of growth is likely to fall into a middle range between a low traditional
growth scenario and a "boomer city" scenario. However, given the current rural character
of most of the study area, a mid-range growth scenario prese:nb significant infrastructure
challenges.
Service Type Advantages and Disadvantages
Individual water wells dominate the current water supply s:ene in the study area.
Individual sept-: systems and aerobic systems are the dominant means of wastewater
management. A number of disadvantages are inhere.: to individual systems, chiefly
concerns regarding groundwater depletion, severe limits to development density, and risk
of environmental degradation.
A regional water and wastewater system mitigates these disadvantages. Coordinated,
regional planning can reduce the costs and environmental impacts of individual systems
while shaping growth in the direction desired by the local community planning agencies.
• Regional planning also capitalizes on opportunities for economies of scale. Shared facilities
can provide both short-term and long-term cost savings to participating entities and may
even result in operational improvements through the expanded use of under-utilized
capacity.
Economic concerns also potentially favjr the development of a regional system and the
associated high-quality infrastructure such a system makes possible. Excellent
p infrastructure is an essential building block for quality development. If communities fad to I~ O O
set the direction for quality infrastructure, developers will act unilaterally to obtain utility
service in a way that supports their own pcrceived b?st interests. In the absence of a
regiotul plan, long-term cost increases and environmental damage are likely outcomes.
CFWIt 1156A5'xZU4E'SWZVT DCC 16
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APPENDIX A
Upper Trinity Regional Water District Members
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Current Members of the Upper Trinity Regional Water District
Participating Members
City of Argy to City of Lewisville
City of Corinth City of Sanger
City of Denton Denton County Fresh
Water Supply District Nl
Town of Flower Mound Lake Cities MUA
City of Highland Village City of Carroll ton
city of living
Contract Members
City of Aubrey Town of Double Oak
Town of Little Elm Town of Bartonville
City of Frisco City of Pilot Point
Town of Ponder City of Justin
City of Krum City of Celina
Town of Copper Canyon Town of Prosper
Town of Lincoln Park
Participating Utilities
Argyle Water Supply Corp. Bartonville Water Supply
3
Corp.
Contract Utilities
Blackrock Water Supply Corp. Mustang Water Supply
Corp.
• j ~ 0 A
Denton County
C County Representative At-Large Representative
OM,i i sstgrsma+UAPPeno_ ooc
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APPENDIX B
Water Supply Fact Sheet
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WATER SUPPLY FACT SHEET
Pipeline Capacities (Based on a head loss of 4 feet per 1000 feet of pipe with a roughness C
value of 120)
Line Size Capacity Capacity Cost"
(Gallons Per Minute) (Million Gallons gel M/Installed Foot)
a
8" 400 0.6 31
10" 725 1,0 39
12" 1200 1.7 46
14" 1600 2.6 54
16" 21500 16 62
18" 3,400 4.9 69
20" 4,500 6.5 77
24" 7,400 10.7 92
30" 12,500 18.0 116
"Costs are budget estimates including installation, appurtenances, and engineering, but not
including land acquisition.
r
Water Demands I
h
O The per-capita demand for potable water can be highly variable with demands influenced O •
by the amount of commercial or industrial users, the economy, the weathe-, the rate
DFWsI156WSWZONLAPPEND e,DOC
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strv;ture and the income level of the people being served. The Texas Natural Resource
Conservation Commission (TNRCC) requires a m'n, mum treatment capacity equal to 0.6
gallons per minute per connection. Assuming three people per connection, this ii
corresponds to a flow rate of 288 gallons per capita per day (gpcd). Most systems have I
maximum day demands in excess of this figure and their systems are sized to meet their
higher loads. The following table lists the projected per capita demands of several area
cities and the ratio between an average day demand on a yearly basis and the demand on
the peak day during the year. This information was obtained from the report titled
"Regional Water System Engineering Report" dated June 1992 by Alan Plummer and
Associates, Inc. and are projected demands in the year 2010.
it Avg. Day (Spcd) Avg./Max, Ratio ax.Da d
i Argyle WSC 221 1.98 438
BartonviIle WSC 230 1.92 431
Corinth 230 2.09 481
Flower bound 238 1.93 460
Highland Village 219 2.07 453
Northlake 203 2.10 447
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APPENDIX C
Wastewater System Fundamentals
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Wastewater System Fundamentals
Privately-Owned Septic Systems
Septic systems are used principally for treatment of wastes from individual
residences in primarily rural areas. In rural or low density areas they are sometimes
used for establishments such as schools, parks, and in some cases motels. Septic
systems are typically two-compartment underground tanks, which provide
sedimentation, sludge digestion, and sludge-storage. Sludge front Septic systems is
usually withdrawn on 2-3 year intervals and disposed of at a public wastewater it
treatment facility.
Effluent from septic tanks is normally discharged underground to subs, irface
leaching fields from where it percolates into the ground. Because of a lack of
understanding of the limitations of septic system` and their fundamental design and
operation factors manv of these syste:ns have not been adequate for the users or
have caused pollution problems. The design and construction of septic system
leaching fields is critical, and the leaching field area must be adequate to provide
sufficient percolation capacity even during prolonged wet weather periods. Septic
systems in North Central Texas require a larger than average leaching field area
because the soils tend to be predominantly dense clay with low porosity and a
correspondingly limited ability for percolation.
Properly designed and maintained septic systems are a suitable option for
individual residences with sufficient property size in rural areas. Septic systems are
almost never suitable for industrial and only for very small commercia! applications.
As the population density increases, septic systems become unsuitable for
residential wastewater management.
In recent years, many on-site systems (especially in Denton County) have
incorporated aeration to augment traditional septic systems as a means to overcome
some of the limitations of this process. In effect, the user must operate a small
B wastewater treatment plant. This technology can produce improved results, but sti!l
poses considerable operations and maintenance problems for the owner.
Wastewater System Characteristics
Municipal wastewater systems have two major infrastructure components: the
• collection system, consisting of a piping network extending throughout the service O 0
area; and one or more wastewater treatment plants where the wastewater is treated
before discharge to a receiving stream.
DFWit 1156SSWZONE APPESD_C DCC
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Collection Systems
V Sanitary sewers are primarily designed to facilitate flows by gravity. Where gravity
flow is not possiule, the collection system may require pumping the wastewater
through force mains either to the wastewater treatment plant or to sections of the
system where flows can continue by gravit,,. Because of lower costs and operating
simplicity, gravity flow is the preferred method of conveyance.
To promote movement Ly gravity flow, a wastewater service area consists of one or
more drainage basins. Each drainage basin is covered by a network of pipes, which
must be sized larger as they connect downstream to accommodate the increasing
flows. These sewer "mains" continue to increase in size until the wastewater
treatment plant is reached. Pipe sizes must be large enough and pipes sloped
sufficiently to maintain enough flow velocity to prevent sedimentation in the pipe.
Also, the system must be oversized to accommodate additional water flows from
infiltration of groundwater and inflow of storm water. Typical design standards are
listed in Table A.
Table A
(1) S" minimum pipe diameter
(2) 2.3 ft/sec minimum flow
(3) 0.25% minimum slope
C (4) infiltration allowance 200 gal/day/inch dia/mile
(5) peak flow designed for 3-4 times average daily flow rate
(6) usage average of 100 gal/capita/day
When determining sewer main pipeline sizes careful consideeation must be given to
future growth. Although most of the footage of a drainage basin's pipelines consist
of smaller pipe sizes, it is the larger mains which collect flows from the outlying sub-
basins that tend to reach capacity more quickly as the system grows. Consequently,
care must be taken to ensure chat then: larger pipeline mains are sued adequately to
accommodate growth in the service area.
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Wastewater Treatment Plants
The wastewater treatment plant (WWTP) must provide for removal of trash and
non-degradable solids; oil and grease removal; biological waste reduction; removal,
stabilization and disposal of sludge; and disinfection of treated water before
discharge. Goals are to provide these essential treatment operations at the lowest
life cycle cost, while maintaining an exceptionally high level of operational
reliability.
Considerations in minimizing the life cycle cos'. are: facility capital costs, manpower
requirements, energy costs for operations, reliability of the process and its
components, ease of operations and maintenance, automation potential, suitability
for implementation of nutrient removal and other future higher treatment
standards, and compatibility for future expansion. Other important considerations
are: space and flood plain cunsiderations; vector (insects, diseases, etc.) attraction
and likelihood of nuisance complaints, and accessibility during abnormal weather
periods.
Planning the wastewater treatment plant design from a standpoint of life cycle cost
ensures that savings in the capital cost portion of a plant's life are not subsequently
overwhelmed by operation and maintenance costs and operational difficulties at a
later time. This is a major threat when developer-driven municipal utility district
package plants become a last report because of the lack of regional planning.
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DCMsIIf%SW20NE'APPEND-CDOC
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APPENDIX D
C Responses From Governing Bodies
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Agenda Mu.
BOARD/COMMISSION NOMINATIONS Agenda Item_ .'S ~
Nate '1- ale - 97
AIRPORT ADVISORY 10AX
Dj Jr? t CURRENT KEM~BE NOMINATION TEP1'! COUNCIL
1 Hal Jackson Hal Jackson 1995-97 Young
2 Rick Woolfolk Rick Woolfolk 1995-97 Durrance
6 Mike Stephens Don Smith 1995-97 Brock
ANIMAL SHELTER ADVISORY BOARD
DIST CURRENT MUIBER NOMINATION TERM COUNCIL
7 Bob Rohr Bob Rohr 1995-97 Miller
1 Brenda Sherpell Nonie Kull 1995-97 Young
3 Lynn Stuclty Lynn Stucky 1995-97 Cochran
4 Veronica Rolen Veronica Rolen 1995-97 Kristoferson
BOARD OP ADJV8TMEl1'
2M CURRENT MEMBER NOMINATION IM COUNCIL
6 Rachel Mays Rachel Mays 1995-97 Brock
7 Bill Colville Keith Appleton 1995-97 Miller
1 Ed Terry Ed Terry 1995-97 Young
BUILDING CODE BOARD
i
DTST CURRENT EM FIBER NOMINATION TERM COUNCIL
1 Willie Hudspeth Don Terry 1995-97 Young
2 Nicholas Eassa Nicholas Eassa 1995-97 Durrance
CABLE TV ADVISORY BOARD
DIS CURRE. NT MEMBER NOMINATION TERM CpUN
5 Mark Burroughs Mark Burroughs 1996-97 Beasley
7 John Kuiper Tim Crouch 1996-97 Miller
6 Hank Dickenson Hank Dickenson 1:96-97 Brock
F
O CIVIL SERVICE 9 MMIS8ION
SEAT CURRENT MEMBER NOMINATION r
CM Charldean Newell 1994-97 City Mngr.
' • 1. ~ d A
+ Nominated - not confirmed
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COMMUNITY DEVELOPMENT ADVISORY COMMITTEE
1? S (31PI-ENT MEMBER NOMINATION T~ COUNI
1 Natrtaniel Johnson Ben Sheffield 1995-97 Young
2 Lisa Polack Lisa Polack 1995-97 Durrance
4 James McDade James McDade 1995-97 Kristoferson
6 Roberta Donsbach Roberta Donsbach 1995-97 Brock
DENTON HOUSING AUTHORITY
SEAT CURRENT MEMBER NOMINATION TERM
7 Ralph Flesher Rosemary Rodriguez 1995-97 Miller
7 Warren Whitson Bob Sherman 1995-97 Miller
7 Vicki Hill Mrrk Chew 1995-97 Miller I
DOYMOWN ADVISORY BOARD
DIST CURRENT MEMBER NOMINATION TERM COUNCIL
5 Dan Martin Dan Martin 1995-97 Beasley
6 Don Davis Pat Cheek 1995-97 Brock
7 Teri Rheault Carol Collins 1995-97 Miller
1 Vernie Wilson Vernie Wilson 1995-97 Young
2 Don Hill David Johnson 1995-97 Durrance
1 Bill Thomas Debbie Sharpton 1995-97 Young
ELECTRICAL CODE BOARRD-
DIST CURRENT HEM NOMINATION TERM COUN LL
2 Doug Grantham Doug Grantham 1995-97 Durrance
(Electrical Contractor)
7 Fred G. Reed (ALT) Fred G. Reed 1995-97 Miller
5 Terry Schertz Salty Rishel 1995-97 Beasley 1
(Building Contractor)
6 Perry McNeill Perry McNeill 1995-97 Broc'.
(Electrical Engineer)
HISTORIC LANDMARR COMMISaION
DIST CURRENT MEMSEg NOMINATION TERM COUNCIL
2 Bill Coleman 1995-97 Durrance
4 Bullitt Lowry Barry Vermillion 1995-97 Kristoferson
5 Suzanne Byron Peggy Capps 1995-97 Beasley 0 •
6 Mark Merki Mark Merki 1995-97 Brock
1 Charlye Heggins Bullitt Lowry 1995-97 Young
3 Alan Smart David Biles 1995-97 Cochran
Nominated - not confirmed
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HUMAN BERVICEB COMMITTEE
DIST CURRENT MEMBER NOMINATION Tyr! COUNCIL
4 Wesley H. Stewart Debra Anthony 1995-97 Kristoferson
5 Catheri+,e Bell Catherine Bell 1995-97 Beasley
1 Sandra Cross Sandra Cross 1995-97 Young
3 Roy Davenport Jerri Look* 1995-97 Cochran
5 Carol Riddlesperger Peggy Kelly 1995-97 Beasley
6 Ramiro Valdez Kent Miller 1995-97 Brock
7 Mary Morimoto Elinor Hughes 1995-97 Miller
E
D
INFORMATION BERVICEB ADVISORY-BOAR
IS CURRENT EMBE NOMINATION TLRM COUN I
7 Don Edwards Jim Poirot 1995-97 Miller
1 Lupo Tovar, Jr. Stephenie McFarland 1995-97 Young
KE3p DENTON BEAUTIFUL BOAR
IS CURRENT MEMBER 149M3_N8`TS-4Ii T E COUNCIL
3 CrEsha Beattie Fred Patterson 1995-97 Cochran
4 Douglas Ebersole Kevin Kasperek 1995-97 Kristoferson
1 L.E. Lawson Bill Swain 1995-97 Young
2 Mark Osborne Mark Osborne 1995-97 Durrance
6 Gayla Robles Beth Clark 1996-98 Brock
(Resigned)
LIBRARY BO*8D
DIST CL. 'RENT MEMBER NOMINATION TERM COUNCIL
_ i
5 Linnie McAdams Linnie McAdams 1995-97 Beasley
6 Jean Greenlaw Michiko Hayhurst 1995-97 Brock
1 Fran Morgan LeJean Brown 1995-97 Young f
2 Keith Swigger Carroll Trail 1995-97 Durrance
PARRS AND RECREATION BOARD f
DIST g_qU NT MEMBER NOMINATION TIM COUN ~
0 Don Edwards Don Edwards All
0 Willie Hudspeth Willie Hudspeth All
9 0 crendolyn Carter Dalton Gregory All
O O
i Nominated - not confirmed
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PLANNING AND OPINING COMMIOSI
DIST CURRENT MEMBER NOMINATION TTEE COUNCIL f
4 Rudy Moreno Elizabeth Gourdie 1995-97 Kristoferson
7 BarLra Russell Susan Apple 1995-97 Miller j
1 Guy Jones Bob Powell 1995-97 Young `i
2 Bob Powell Rudy Moreno 1995-97 Durrance
PLUMBING AND ME,9ANICAL CODE BOARD
DIST CURRENT MEMBER NOMINATION IBM COUNCIL
3 Frank Cunningham Frank Cunningham 1995-97 Cochran
(Mechanical Contractor)
4 Karl Martino Karl Martino 1995-97 Kristoferson I
(Mechanical Engineer) I
7 Wiley Cunagin Wiley Cunagin 1995-97 Miller
(Mechanical Engineer)
2 Dave Reynolds Dave Reynolds 1995-97 Durrance
(Master Plumber)
PU14IC IITILITIE8 BOAR
DIST CC9TS8ENT MEMBER NOMINATION TERM COUNCIL
0 John Thompson Charldean Newell All
SIGN BOARD OF APPEALS
MST CURRENT MEMBER NOMINATION T_EE COUNC
2 Eldon Seaton Eldon. Seaton 1995-97 Durrance
4 John Weber Doug Ebersole 1995-97 Kristoferson
5 Brent Thornton Brent Thornton 1995-97 Beasley
(AI.T)
6 Rebecca Arnold- Rebecca Arnold-Moore 1995-97 Brock
Moore
TMPA BOARD OF DIRECTORS
• S:AT CURRENT EMBER NOMINATION TERM
_r
0 Bill Giese Bill Giese All
;
TRAFFIC SAFETY COMMISSIO111 )
DIST CURRENT MEMBER DOMINATION "TERM COOUNCIL
• 3 Carolyn Bacon Carolyn Bacon 1995-97 Cochran • •
4 Harry Phillips Harry Phillips 1995-97 Kristoferson
5 Charles Ridens Charles Ridens 1995-97 Beasley
7 Jim Hobdy Jim Hobdy 1995-97 Miller
ACCO0128
* Nominate.! - not confirmed
to* t.,qt
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CA IN
Agenda No.
Agenda Item o2
Date ea-47
CITY OF D_ENTON, rEXAS MUN1CfPAL BUIL_DINO • DENTON, TEXAS 76201 • TELEPHONE (817) 566.8307
Office of the City Manager
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MEMORANDUM
DATE: July 22, 1997
TO: Maycr and Members of the City Council
FROM: Rick Svehla, Deputy City Manager
t
SUBJECT: RESOLUTION IN SUPPORT OF THE STREAMLINE TRANSPORTATION
EFFICIENCY PROGRAM FOR THE 21° CENTURY (STEP 21)
Attached is a resolution in support of the new highway funding legislation. We have been asked
by NCTCOG and TXDOT to provide a resolution that endorses the new legislation. The
resolution you have before you is very sinilar to the one passed by the Texas Department of
Transportation Highway Commission earlier this year.
If members of the council have any questions, please call at your convenience.
Rick Sv:hla
• Deputy Cky Manager
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RESOLUTION NO.
A RESOLUTION SUPPORTING THE I!:''.'IRPORATION OF A STREAMLINE TRANSPOR-
TATION EFFICIENCY PROGRAM FOn THE 21ST CENTURY (STEP21) INTO THE
REAUTHORIZATION OF THE INTERMODAL SURFACE TRANSPORTATION EFFICIENCY
ACT OF 1991; AND PROVIDING AN EFFECTIVE DATE. {
WHEREAS, the Intermodal Surface Transportation Efficiency Act
of 1991 (ISTEA) expires on September 30, 1997; and
WHEREAS, the Nation's transportation infrastructure plays an
integral part in the Nation's economy and the Texas transportation
system is a key component of the National network; and
WHEREAS, the U.S. Departv,ent of Transportation has reported
that the nation's transportation network is in dire need of a
substantial increase in the level of financial investment to bring
the system up to standard and to meet expanding transportation
demands) and
WHEREAS, a strong National Highway System requirPa adequate
support to provide mobility and economic benefits for all States
and the nation as a whole and to ensure the vital Texas transporta-
tion system is connected to the rest of the nation; and
WHEREAS, our Nation i:eeda a simpler, more responsive federal
surface transportation program if we are to respond effectively to
the transportation challenges and opportunities we will confront as
we enter the 21st Century; and
WHEREAS, a more flexible federal surface transportation program
will better enable States, working together with their local
partners, to develop locally crafted solutions to meet locally
identified traneportation needs; anal
WHEREAS, the General Accounting Office has determined that
0 current ISTEA funding formulas are not needs-based and use outdated
factors for distributing funds among the States; and
WHEREAS, the formulas used in the STEP21 proposal (Streamlined
Transportation Efficiency Program for the 21st Century), embodied
in the "ISTEA Integrity Restoration Act" filed by Congressman Tom
Delay fR - Texas) and Senator John Warner (R - Virginia), are based
6 on modern factors closely associated with the use of the transpor-
tation systems; and O
WHEREAS, the upcoming reauthorization of federal surface
transportation programs represents a critical opportunity to ensure
that the future methods of allocating federal transportation funds
among the States are equitable and fair and take into consideration
the true modern needs of the system; and
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WHEREAS, the STEP21 proposal will: +
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1. Provide multi-year authorization for a simplified,
consolidated, and adequately funded federal alirface
transportation program, providing each state increased
flexibility to meet unique state needs;
2. Respond to the key federal surface transportation
responsibility by supporting a consolidated, adequately
funded, and more flexible National Highway System;
3. Streamline the Surface Transportation Program to provide
states and local governments with greater flexibility to
address local transportation needs including compliance
with Clean Air Act mandates in nonattainment areas;
4. Provide a much fairer balance between each state's
highway tax contributions to the Highway Account of the
Federal Highway Trust Fund and funds that states
receives from that fund, while continuing to assist all
states in providing road systems urgently needed for
national and re3ional, mobility, economic connectivity,
international competitiveness, and national defense;
5. Preserve ISTEA partnerships with local governments that
include local governments and metropolitan planning
organizations in the decision making process for
transportation planning and project selection, and
retain the ISTEA suballocation of federal funds to the
transportation management areas; and
6. Preserve ISTEA federal transit programs and funding
structure.
THE COUNCIL OF THE CITY OF DENTON HEREBY RESOLVES: E
SECTION I• That the City Council hereby supports the incorpo-
ration of a Streamline Transportation Efficiency Program For The
21st Century (STEP21) into the reauthorization of the Intermodal
Surface Transportation Act of 1991. r
SECTION 11, That the City Council requests that the City
Secretary provide a true and correct copy of this resolution to
Senators Phil Gramm and Kay Bailey Hutchison and to Congressmembers
Mary Denny, Jim Horn, and Burt O'olomons who represent the Denton
area and are requested to support this legislation.
SECTION III. That this resolution shall become effective
immediately upon its passage and approval.
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PASSED AND APPROVED this the d+iy Of 1997.
JACK MILLER, MAYOR
ATTEST:
JENNIFER WALTERS, CITY SECRETARY
BY:
APPROVED AS TO LEGAL FORM:
HERBERT L. PROUTY, CITY ATTORNEY
BY
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