2015-390ORDINANCE NO. 2� 15°3g�
AN ORDINANCE OF THE CITY OF DENTON, TEXAS, AMENDING ORDINANCE NO.
2014-240 TO MODIFY A SPECIFIC USE PERMIT FOR AKERS TOWING LLC WITH NEW
CONDITIONS, TO ALLOW WRECKER SERVICES AND IMPOUND LOTS ON A
PROPERTY LOCATED IN AN EMPLOYMENT CENTER INDUSTRIAL (EC-I) ZONING
AND USE DISTRICT, WITH CONDITIONS, ON APPROXIMATELY 1.3 ACRES. THE
SUBJECT PROPERTY IS GENERALLY LOCATED SOUTH OF SMITH STREET, EAST OF
DALLAS DRIVE, AND NORTH OF TEASLEY LANE; PROVIDING FOR A SAVINGS
CLAUSE, A PENALTY IN THE MAXIMUM AMOUNT OF $2,000,00, SEVERABILITY, AND
AN EFFECTIVE DATE.
WHEREAS, Joe H. Akers ("Owner") owns approximately 1.3 acres of land located at
A0623a A. Hill Abstract, Tr. 77, more commonly known as 715/717 Dallas Drive, within the City
of Denton, Denton County, Texas, and more particularly described in Exhibit "A" attached hereto
and incorporated by reference herein (the "Property"), which is zoned as an Employment Center
Industrial Zoning and Land Use District (EC-I); and
WHEREAS, the Owner has operated and continues to operate a wrecker service and
impound lot on the Property under the business Akers Towing LLC; and
WHEREAS, the Denton Development Code, Section 35.5.6.2 requires a Specific Use
Permit ("SUP") for such use in an EGI district, as well as a Limitation 29 ("L(29)") of Section
35.5.8; and
WHEREAS, after receiving a citation for operating without a proper Certificate of
Occupancy, which requires an SUP, Owner filed a request for an SUP and also objected to the
application of L(29); and
WHEREAS, the City Council, on August 5, 2014, approved Ordinance 2014-240 granting
a SUP for Akers Towing LLC in order to allow Wrecker Services and Impound Lots on the
Property but required several conditions to be met; and
WHEREAS, in consideration of Owner's objection, the conditions required by Ordinance
2014-240 included the requirement for an eight-foot (8') high screening fence and a type "B"
buffer to be placed along the perimeter of the site, as well as the requirement that Best Management
Practices ("BMPs") be installed in accordance with L(29) in order to minimize the potential for
stormwater contamination only if contamination is found by City Staff to be exiting the Property
and into the watershed; otherwise, the SUP would be lost and Owner would cease doing business;
and
WHEREAS, in September 2014, City staff completed monitoring of the Property for
contamination by testing various soil samples which coniirmed that metals and total petroleum
hydrocarbons were likely exiting the Property in storm water; and
WHEREAS, Owner was provided notice of the positive testing results and failed to submit
a formal stormwater management plan, failed to install BMPs, failed to install the screening fence,
and failed to install the type "B" buffer, all in compliance with Ordinance 2014-240; and
WHEREAS, the City Council held a hearing after due notice to the Owner on November
17, 2015 in order to consider revocation of the SUP in accordance with Ordinance No. 2014-240
and Subchapter 6 of the Denton Development Code; and
WHEREAS, at said hearing, City Council found that the conditions of the SUP were not
met; however, Owner showed good cause as to why the conditions were not met and presented
evidence of a good faith effort to meet the conditions; and
WHEREAS, the City Council determined that the hearing should be continued until the
regular meeting of December 15, 2015, to determine if the conditions of the SUP had then and
there been met by Owner, or otherwise to revoke or modify the SUP; and
WHEREAS, after considering the matter on December 15, 2015, the City Council finds
that the Owner has adequately met the conditions of the SUP as stated in Ordinance 2014-240;
however, City Council further finds that assessing new conditions is necessary, requiring a
modification of the SUP; and
WHEREAS, the City Council finds that Ordinance 2014-240 shall be amended to modify
the SUP to add these new conditions and that said Ordinance is consistent with the Denton Plan
and the Denton Development Code and is in the best interest of the citizens of the City of Denton
to promote the public health, safety, morals, and general welfare of the City; NOW, THEREFORE,
THE COUNCIL OF THE CITY OF DENTON HEREBY ORDAINS:
SECTION 1,.. The findings and recitations contained in the preamble of this ordinance are
incorporated herein by reference and found to be true.
SECTION 2. Savings Clause. Ordinance 2014-240 is hereby amended to modify the
SUP as stated herein. This amendment does not affect a punishment or penalty incurred under
Ordinance 2014-240 before the effective date of this Ordinance, nor a suit, prosecution, or
proceeding pending at the time of the amendment for an offense committed under the original
ordinance.
CTION 3. SUP Modified. The Specific Use Permit granted in Ordinance No. 2014-
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240 to allow wrecker services and impound lots on the Property is hereby modified and subjected
to the following conditions:
1. The site plan shown in Exhibit "B" and "C" shall guide the operation of the use of the
property for wrecker services and impounds lots; and
2. Best management practices (BMPs) addressing stormwater quality are required to be
maintained on the Property in accordance with the Denton Development Code and in
conformance with the "Stormwater Management Plan" submitted by Owner and attached
as Exhibit "D" hereto and incorporated by reference as if set forth at length herein, or any
subsequent written amendments thereto as approved by the City of Denton Watershed
Protection Manager, or his/her designee; and
Page 2 of 4
3. BMPs on the Property shall at all times meet the requirements and specifications of the
Stormwater Management Plan (Exhibit "D") and be consistent with the requirements set
forth in L (29); and
4. Owner shall at all times maintain the structural and non-structural stormwater BMPs on
the Property and shall perform self-inspections of the BMPs on the Property in accordance
with the frequency set out in the Stormwater Management Plan (Exhibit "D") and
document the results of those inspections in writing; and
5. Owner shall make all records concerning the SUP, the modified SUP conditions, and the
BMPs on the Property, including the documentation of self-inspections as outlined in the
Stormwater Management Plan (Exhibit "D"), available to City staff upon request; and
6. Owner shall permit periodic inspections on the Property, with or without notice to the
Owner, by the City of Denton Watershed Protection Manager, or his/her designee, for the
purposes of compliance with this Ordinance and other applicable law; and
7. If the Property is found by City staff to be in violation of a provision of this Ordinance, of
the City of Denton Code of Ordinances, the Denton Development Code, or of other
applicable law, then a Notice of Correction shall be issued by the City of Denton Watershed
Protection Manager, or his/her designee, providing the nature of the violation and a
timeframe by which the violation shall be corrected. Failure to cure the violation within
the time specified shall be a failure of a condition of this Ordinance, subject to revocation
as described herein. This provision does not limit or control, however, other City
departments' methods to enforce provisions of the code under their own standard operating
procedures; and
8. An eight-foot (8') high screening fence made of wood or other opaque materials shall be
required to be maintained along the perimeter of the Property, in accordance with the City
of Denton Code of Ordinances and the Denton Development Code and generally as
depicted in Exhibits "B" and "C" attached hereto.
9. A Type "B" buffer shall be required to be maintained along the western right of way, Dallas
Drive, as generally depicted in Exhibits "B" and "C." The landscaping planted along the
outside of the fence shall be maintained, irrigated, and kept alive at all times; and
10. Owner shall comply with all local, state, and federal law concerning the Property and the
use thereon; and
11. The modified SUP described herein is approved for the Owner of the Property only, rather
than for the Property itself, and therefore does not run with the land. This SUP shall only
be assignable to individuals who are related to Owner by consanguinity or affinity, both in
the first degree. Any other assignment shall cause this SUP to be void and subject to
revocation as herein described.
SECTION 4. SUP Regulations. Upon notice to the Owner and a hearing before the City
Council, the modified SUP may be revoked or further modified if:
1. There is one or more of the conditions imposed by this Ordinance that has not been met
or has been violated on the Property; or
2, The SUP or modified SUP was obtained or extended by fraud or deception; or
3. As otherwise permitted by law and/or Denton's Zoning Ordinance.
SECTIONwwwSm Unlawful Use. It shall be unlawful for any person, firm, corporation, or
other entity to make use of the above-referenced Property in some manner other than as authorized
by the Denton Code of Ordinances and this Ordinance.
SECTION 6. Penalty. Any person, firm, corporation or other entity violating any
provision of this ordinance shall, upon conviction, be fined a sum not exceeding $2,000.00 for
each violation. Each day that a provision of this ordinance is violated shall constitute a separate
and distinct offense, The penal provisions imposed under this Ordinance shall not preclude the
City of Denton from filing a lawsuit to enjoin the violation and it retains all legal rights and
remedies available to it under local, state, and federal law.
SECTION 7. Severability. If any provision of this ordinance or the application thereof
to any person or circumstance is held invalid by any court, such invalidity shall not affect the
validity of other provisions or applications, and to this end the provisions of this ordinance are
severable.
SECTION 8. Effective Date. In compliance with Section 2.09(c) of the Denton Charter,
this ordinance shall become effective fourteen (14) days from the date of its passage, and the City
Secretary is hereby directed to cause the caption of this ordinance to be published twice in the
Denton Record-Chronicle, a daily newspaper published in the City of Denton, Texas, within ten
(10) days of the date of its passage.
PASSED AND APPROVED this the ,���M„M day of _ ���� � m� � 2015.
�' I:I l� l'� WATTS, ��f �m"�`"OR
ATTEST:
JENNIFER WALTERS, CITY SECRETARY
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APPRC �' �,[:) AS .� LEGAL FORM:
JENNIFER DECURTIS, DEPUTY CITY ATTORNEY
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Page 4 of 4
Exhibit A
Legal Description
715 Dallas Drive
1.28 Acres
FIELD NOTES to all that certain lot, tract, or parcel of land situated in the A, Hill Survey,
Abstract Number 623, Denton County, Texas, and being all of a tract of land described
in a deed from Antone P. Raposa to Joe Hoyt Akers, as recorded in Volume 849, Page
454, Deed Records, Dentan County, Texas, also being a part of Lots 3 and 4 in the
Emily J. Fry Estate, according to the plat thereof recorded in Volume 1, Page 36, Plat
Records, Denton County, Texas, the subject tract being more particularly described as
follows;
BEGINNING at a metal fence corner post found for the most Northerly Northwest corner
of the herein described tract, the most Northerly Northwest corner of said Akers tract and
the Northeast corner of Lot 1 in Block A of Delux Addition, an addition to the City of
Denton, according to the plat thereof recorded in Cabinet S, Page 322, Plat Records,
Denton County, Texas;
THENCE South 89 degrees 40 minutes 47 seconds East with the North line of said
Akers tract, along or near a fence, at a distance of 267.29 feet passing a capped iron rod
found stamped "4561" for the Southeast corner of a tract of land described in a deed to
F&H Construction, as recorded in County Clerk File Number 2002-79921, Real Property
Records, Denton County, Texas, continuing along said course, a total distance of 269.48
feet to a capped iron rod set for the Northeast corner of said Akers tract and being in the
East line of said Lot 4, the West line of Lot 1 in said Emily J. Fry Estate and the West
line of a tract of land described in a deed to David Matheson, as recorded in County
Clerk File Number 1994-13414, Real Property Records, Denton County, Texas, fram
which a 1/2" iron rod found for the Northwest corner thereof and the Northwest corner of
said Lot 1 bears North 00 degrees 11 minutes 27 seconds West, a distance of 385.44
feet;
THENCE South 00 degrees 11 minutes 27 seconds East with the West line of said Lot 1,
the West line of said Matheson tract, the East line of said Lot 4 and the East line of said
Akers tract, a distance of 184.35 feet to a capped iron rod set for the Southeast corner
thereof in the West line of Lot 2 in said Emily J. Fry Estate, and being the apparent
Northeast corner of Lot 1 in Block A of Reynolds Dallas Drive Addition, an addition to the
City of Dentan, according to the plat thereof recorded in Cabinet E, Page 287, Plat
Records, Denton County, Texas, from which a metal fence corner post found for an
angle point in the East line thereof, the Southwest corner of said Lot 2 and the
Southwest corner of said Matheson tract bears South 00 degrees 11 minutes 27
seconds East, a distance of 86.77 feet;
THENCE North 89 degrees 57 minutes 29 seconds West with the apparent North line of
said Reynolds Dallas Drive Addition and the South line of said Akers tract, a distance of
282.52 feet to a capped iron rod set on the Northeast line of Dallas Drive for the
Southwest corner thereof and the apparent Northwest corner of said Reynolds Dallas
Drive Addition, from which a 1/2" iron rod found for the Southeast corner thereof bears
South 47 degrees 57 minutes 33 seconds East, a distance of 383.71 feet;
THENCE North 47 degrees 57 minutes 33 seconds West with the Northeast line of said
Dallas Drive and a Southwest line of said Akers tract, a distance of 139.87 feet to a PK
nail set for the most Westerly Northwest corner thereof and the Southwest corner of a
�.31 acre right-of-way dedication found in said Cabinet S, Page 322, from which a PK
nail found for an angle point nn the West line thereof bears North 47 degrees 57 minutes
33 seconds West, a distance of 18.77 feet;
THENCE South 89 degrees 47 minutes 48 seconds East with the North line of sald
Akers tract, at a distance of 1 �.00 feet passing the Southwest corner of Lot 1 in said
Delux Additlon, continuing along said course and the South line of said Lot 1, a distance
of 115.48 feet to a metal fence corner post found for the Southeast corner thereof and
an inner ell corner of said Akers tract;
THENCE North 00 degrees 30 minutes 56 seconds East with the West line thereof and
the East line of said Lot 1, aiong ar near a fence, a distance �f 92.39 feet to the PLACE
OF BEGINNING and enclosing 1.28 acres of land more or less.
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Exhibit D
Stormwater Management Plan
Akers Towing
Ordinance 2014-240
Written by: Ida Martinez
Date: 2015-11-18
Table of Contents
1 Introduction ........................................................................................
2 Pollution Prevention Team ................................................................
3 Site Description .................................................................................
3.1 Facility Information ......................................................................
3.2 Narrative Site Description .............................................................
3.3 Site Map ............................................ ......... ......w.. ,..,.,,,. ..d.�.,,.,
3.4 Inventory of Exposed Materials and Potential Pollutant Sources.
4
5
�
7
Best Management Practices (BMP) Identification ..............�..,........,....,..,.........,.�.........,,,......,
4.1 Good Housekeeping Best Management Practices..,,,,,,,,..�,.�„ ........................��.....,,....,...
4.2 Structural BMPS ..............................................���a,,.,.„....�.,..................,,,...,,.,,.,�.,..,
BMPImplementation ...........................�........,.. ......,.. �......, ,,.��,..� ,„..,... .....,.., ....�.........�
5.1 Routine Inspections ......................................................................��,,,.,.,.,
5.2 Employee Training . .... ........ .�,..,.. ......,,. ,......,. .,.....a. ,.,.�.���,,,...,...
5.3 Vehicle and Equipment Washing . .........................................�.,,,,,,........,
5.4 Sediment and Erosion Control ................................................................
5.5 Structural BMPs ................... ......... .......�. .,....,, ,�,��............., ..,,.....
BMPImplementation ..................................................................................
6.1 Routine Inspections .................................................................................
6.2 Employee Training ................................................................................a,
General Requirements ................................................................................
7.1 Record Keeping and Reporting ................................................................
7.2 Amending and Updating the Stormwater Management Plan .................
7.3 City of Denton Inspections ...............................�,.,.,.,.,,�,,,,�...,,...�........,...
7.4 Certification..�.,...�.��..,.,..,.�..�� ... ............................ ....�.... .,...„� .,.,,...
�
Appendix A: Structural BMP information for Compost Sock ...........................................�,.,,,..
Appendix B: Routine Facility Inspections ................................�....,..,,�..,�...�,....,,,,..,....,��.,.........,
Appendix C: Employee Training Records .....................................................�.......,...,...,.,.„�,,,.,.
Appendix D: Annual Storm water Compliance .....................„....,......,.,...,..,......a..�,,..,...,,..,..
Appendix E: Spill Prevention and Resource Policy
1.0 Introduction
This stormwater pollution prevention plan covers the operations at Akers_Towing located at 715
Dallas Dr. It has been developed to meet the conditions of limitation 29 of the Denton
2
Development Code, as specified in Ordinance 2014-240. This Stormwater Management Plan
describes this facility and its operations, develops an inventory of potential pollutant sources,
identifies controls and best management practices (BMP's) for reducing the discharge of pollutants
in stormwater runoff, and outlines measures for implementing and reviewing this plan.
2.0 Pollution Prevention Team (Responsible Party)
The Pollution Prevention Team (PPT) will be in charge of developing, implementing, and requesting
revisions for the Stormwater Management Plan to ensure the Plan is in compliance with Ordinance 2014-
240.
Leader: Ida Martinez
Title: Compliance
Offce Phone: 940-387-5739
Mobile Phone: 940-300-6390
Email: akerstowin�n�mail.com
Responsibilities: Oversee compliance with Ordinance 2014-240 City of Denton
Denton PD
TDL&R
TX DOT
TX SOS
Member: Gloria Akers
Title: CEO
Offce Phone:940-387-5739
Mobile Phone: 940-597-9361
Email: akerstowing(a��mail.com
Responsibilities: Owner
3.0 Site Description
24hr Towing and Vehicle Storage Facility located on 1.3 acres
3.1 Facility Information
Street Address: 715 Dallas Dr.
Phone: 940-387-5739/940-387-5066
Fax: 940-380-0431
E-mail: akerstowin�n�mail.com
Hours of Operation 24 Hours
3.2 Narrative Site Description
Show site descriptions on the site map (3.3)
Akers Towing sits on 1.2659 acres with a meta15600 sq. ft. type S metal building with a 2 car carport and
2°d floor break room area with full kitchen and bathroom. The building has 4 large bay doors and an add
garage on SE side of building. Parking for heavy duty unit is located on west side of building in
designated area with equipment storage building directly behind HD parking area
10,000 sq. ft. of concrete surface and 15,000 sq. ft. of 2ft deep lime gravel with an additional3ft of sand
under gravel. The VSF is located at the NE corner of property with an 8ft chain link fence not in public
view, holds up to 15 vehicles. Vehicles are stored on property no longer than 71 days.
All vehicles inspected upon entry to the property. If suspected leaks are observed all fluids are
drained and fluids are then placed in designated containers. Batteries are also inspected and
removed if damaged and or leaking and stored indoor on storage rack with catch basin
underneath awaiting removal by Interstate Battery.
Storage containers are located on the South East corner of property with additional equipment storage
areas located in rear of building and on South East side of building.
3.3 Site Map
See Attachment
3.4 Inventory of Exposed Materials and Potential Pollutant Sources
Table 1: Inventory of Site Areas and Activities Exposed to Stormwater
NO MATERIALS EXPdSED
4.0 BMP Identification
4
4.1 Good Housekeeping Best Management Practices:
Effective as of the date of this plan, all outdoor areas will be managed using the good
housekeeping BMPs outlined in the following table. Good housekeeping activities and
inspections shall be documented and retained as specified in Section 7.0.
T,
�ble 2. Good House�c�.�c�M����� BMPs
gMp Implementation Responsible Party
Date
....� .... _...._ ....��._�... .�........ �...�
Install a concrete hump where Heavy Duty Tow trucks 12/O1/15 1JM
park to intercept and contain any automotive fluids.
.� ��.. �..� .Y.w_......�.__� .... ... .....e � .... �.�..._�, .�....
lnspect vehicles entering the yard for leaks and damaged ONGOING IJM
batteries. Damaged batteries will be removed, and
leaking fluids will be drained prior to storage. If needed,
drip pans shall be placed under vehicles to capture leaks
until fluids can be drained
� Flutds drainin w�ll be done indoors �� ��� �-°°�- ��............ ._ ......,_„ �
' g' in the garage, or on ONGOING IJM
a concrete pad, Containers shall be used to collect
fluids, and absorbent materials will be used to
immediatel clean u s�lls and leaks
Y �.. .� �m, ...�.._._�_......._ ..�... .....�.. .m�. ...�..... ,
All fluid products and wastes shall be kept in labeled ONGOING IJM '
containers. If containers are placed are stored outdoors,
they must be sealed
Damaged batteries shall be s� ���� �^� �"� m m
�tored indoors in a ONGOING IJM
containment area or outdoors in a properly labeled leak
�roof container
Towin Units and e ut ment shall b � �� ����������� ��� �����....�
g q'p e inspected monthly ONGOING IJM
for leaks. Any leaks shall be repaired immediately. If
equipment represents a stormwater contamination
concern, it shall be covered to eliminate exposure. _m
n......_ � ..�.. _____� � _,., e. � __. _ ... �_ �.. ....
Perform a weekly inspection for all vehicles parked or ONGOING IJM
stored at the facility to ensure there are no small leaks.
Use drip pans to collect any fluids if leaks are
discavered
. A written spil.... .�...... _..,__�,.__ � ... �� ...... .....�.,� �,,,,,,,. �... ....--.w��w�.�
' ' 1 prevention and response policy shall be 11/24/2015 1JM
created for this facility, shall be a part of this stormwater
plan, and shall be rovided to City of Denton �ersonnel
All staff shall be trained annually on stormwater ONGOIN��� ��
�} IJM
requirements of this plan, including spill prevention and
response. Training shall be documented by the
signature of each employee on a form indicating that
trainin has been rovided.
Spill response equipment shall be located at all potential ONGOING IJM
spill areas.
Any spill on the site shall be immediately cleaned up ONGOING IJM
with an absorbent material or similar "dry methods".
Spill areas shall never be washed down with water
4.2 Structural BMPs
A properly designed and maintained compost sock system is used to control runoff from this facility.
Details of this system, including site map, calculations, and maintenance requirements are included in
Appendix A. The compost sock system plans were submitted to the City of Denton and approved upon
review.
5.0 BMP Implementation
5.1 Routine Inspections
Facility inspections will be performed at least every quarter, or more frequently as indicated in Table 2.
Inspections will be performed by Ida Martinez. If storm water BMPs are found to be functioning
incorrectly, maintenance or modifications will be enacted before the next anticipated storm event, or as
necessary to maintain effectiveness of the stormwater controls. Records of inspections, including
maintenance or modification, shall be kept with this plan using the form provided in Appendix B and
shall be retained for a minimum of three years.
5.2 Employee Training
Topics to be included in employee training:
• Spill response procedure
• Review of good housekeeping procedures
• Proper material handling procedures
• Proper disposal or recycling of materials
• Be sure employees know where cleaning materials and spill kits are located
• Review sources of stormwater pollutants used onsite
• Familiarize employees with drainage routes near areas where industrial materials are handled
All employees will attend a training session annually. New employees will be trained within three
months of hire. Records of training shall be kept with this plan using the form provided in
Appendix C, and shall be retained for a minimum of three years.
6.0 Annual Compliance Evaluation
A comprehensive site evaluation will be performed every year by Ida Martinez. The results of the
compliance evaluation shall be documented in a report containing at minimum: the date, the
person(s) making the inspection, the scope of the inspection, observations relating to the discharge
of pollutants from the facility, BMPs needing maintenance, locations where additional BMPs are
needed, corrective actions taken, and any update. Forms for the annual report shall be kept with
this plan using the forms include in Appendix D. Records of the annual compliance evaluation
shall be retained for a minimum of three years.
7.0 General Requirements
7.1 Record Keeping and Reporting
A copy oPthis Stormwater Management Plan will be maintained onsite, as well as records pertaining to
inspections, monitoring, maintenance, employee trainings, compliance evaluations, and spills. These
records must be retained for khe current year and at least three prior years. This information shall be made
available upon request to tlae City of Denton.
7.2 Amending and Updating the Storniwater Management Plan
The Storinwater Maiiagecnenl Plan may be amended if inspections or monitoring indicate a
deficiency, or City of Denton personnel determine that it is not effective at controlling stormwater
pollutant discllarges. The plan will also be amended if changes occur to the facilities layout or
operations. Any amendment to the plan shall be provided to the City of Denton's Watershed
Protection Maaager via en�ail at david.hunter a,citvofdenton.com and shall require approval before
implenlentiiig. A history of amendments will be kept with the plan using the form in Appendi:c D.
7.3 City of Denton Inspections
City of Denton staff shall periodically inspect the site to ensure good housekeeping and structural
BMPs are functioning properly and accomplishing the goal of protecting stormwater. ilispections
shall be both visually assessments fi•om public right of ways and on-site inspections. On-site
inspections may include a review of records. Record inspect.ions may also include a cli►•ect reqLiest
for records to be sent to the City for review, For on-site inspections, City of Denton personnel
shall contact Akers Towing and arrange a time for the visit.
7.4 Certiiication
I certify that this document and all attach�nents were prepared under my direction or supervision in
accordance witll a system designed to assure that qualified personiiel properly gattter and evaluate the
information submitted. .
Name (print):Ida Nlartinez
Title:
Compliance �i"������•�i�naC��r
,.,.
°'
Signature: ,�"��" � � ��.����� : ��
� . .��
Date Signed: i�, � /S.
Appendix A. Structural BMP information for compost sock
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e Above and below disturbed areas subject to sheet
rttnoff, interrill and rill erosxon
� Above and 6elow exposed and erodable slopes
s E\lc�ng the toe of strearr� and chanrrel banks
• 1lround �rea cfe°ains or inlets Iocated in a`sump'
m On compacted soils where ttenching of si[t Fence
is difficult or itnpossible
• Around sensitive trees �vhere trenclueflg r�f
silt fence is not beneficial for tree survav�l or may
unnecessarily disturb established vegetation.
• On frozen ground wlrere trenching of sile fence is
impossible.
• On paved surfaces where teench�ng of silt fencc is
;mpass,ble.
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Filtrexx° Sediment Control
Sediment & Perimeter Control Technology
Installation Method — Perimeter Control
Sediment control can be applied to areas oEhigh
sheet runoEFand erosion, on slopes up to a 1;1
grade (sh�uld be used ln conjunccion wlch slope
stabiliz.ation/erc�sicrn conttot technology on slopes
> 4:1}, around inlets, and in other disturbed areas
oEconstruction sites requiring sediment control.
Sediment control tnay also be used in sensitive
envaronmental areas, vvhere anigration of w�ldliFe may
be arnpeded by the use oEfences or trenching tnay
damage roots.
It [s possible to drive over Sedienent control
duting construction (although not recomtnended),
however, these areas should be itnmediately repaired
by man�a[ly mov[ng 5edirnent control 6ack into
place, iEdisturbed. Continued heavy construction
tfl•aFfic rrbay destre�y the fabric anesh, e°educe che
dimensions, and reduce ehe efFectiven�ss of the
Sediment control.
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Adv ta��s
• Tubu[ar f�ltration tnatrix allows for 6etter trappi�ig
and removal of sedirnent and soluble pollutants
in stotm water runoff compared to planar
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e Cycle Cost
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��ns�ruceion activaty is cornplete.
� ���de�radable c�r photesdegradabl� Sedirrsent
ccsntrc�l can be le�`t ora site af�er construction
aceivity elirninat�ng the need for rerr�oval and labor
�nd disposal costs.
� SedYra�e�et c�ntro[ can be used on slopes t�
slow do+nrn razncrff veloc�ty, dispea°se crancentrated
raen�ff, and red�ce effect�ve slope lert�ths, redtacing
the ersas�ve p�teneial o�`stor�nvvater rura�ff,
* Sedirn�nt conero� is less likely to c�bstruce
wildlife rrrovemerae ar�d ra�i�r�tion thar� planar/s'tlt
�ence sed'eanent control practices. ,
� Sedirnent ccrntrol is ava�lavle in 8 in.(200tnrri}>
1� in, (300cnea�}, 1� in. (450rnrri), 24 in.
(60�rnrai}, and 32 ie� (f300mrn} dianaeeers
�ssr custcsmer,ed applicat[ons and challen�irag
situati�ns,
• Sediraient c�ntr�l is available in 200 ft (61 m}.
continussus lengths to prevent w�ak sections
and ereata�n of�cop�centrated Aow sieuatis�rrs
ryp�cal to low points in rttr�s �f oeher sedienep�t
c�tttrol devices, E,rad pa[nts are sleev�d together
to form cantinus�us ruaas of` �znlimited lengths
withsstat ls�w or break p�ints.
• Seditr�ent �ontrc�l tnay assist in qualificat[�an fcsr
L.EEL9� �reera �rxilding £Lating and �ertification
credirs under I.EEI�� New Construction 2.2.
Awarded credYts rnay b� possible frcarn S5
Pc�erequisiee 1, SS �redie 5.1, S� �redit 6,2„ \77'✓�
�redit 2, IVIR Credit 4.1, Mft �redit 4.2, MFL
�r�dit 5.1, I�R �red�t 5.2> and MIL �red�t 6,
1�1ote.� LEEL7� is an i�zdepene�erat pro,grrzm oj�'erecl
throzegh the C/S ('ireen $zail,cling Council. L�'�'D�'
creclits are cl�eerrrtinecl on ca per project b�.scs by an
anclep�saclesat �taclatin,g cornmaete�. Filtrez�°�' rseteher
guarczntees szor rsssures L�°E1i� cs°eclats frarre the
crse of ats j�rorlucts.
Is� v t���s
• If filler tnaterial of �ed[tnent �a�ntrol is rtoe
�ertefied FYltern/dediaT"', perforrnance may be
damiei�s�aed.
� If tic�t Ynstalled cssrrecely, r�ta�ntained �r used fcsr a
purpose or iratentimn that does raot meet
sp�caficaeions peaformance rnay be dira�inished.
• I£ l�nd sur�'a�e is extrernely bumpy, rocky, c�r
chan�es elevatiora abruptly groaand surfa��
cantact to Sedirn�nt c�ntr�l rnay b� di�nin�shed
thereby adversely effectin� perfcrrmance.
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Filtering Water
Coristruction Activities I 5�ct�on 1: Erosion & Sediment Con4ral � 3
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fence, I)esign consideration should be given to the
duration of the praject, total area of disturbance,
rainfal!/runoff potentia[, soil erosian patential, and
sediment loadeng.
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Figure 1.3 Filtrexx� Sediment Control Design Tool for Sediment Control Applications.
Step 1: Choose units. ft or m
Step 2: Choose input: Tr or I
total rainfall
Step 3: Choose input: A or W
width of area
Step 4: Input slope
Step 5: Input reduction runoff percent
Step 6: Input effective length of filter
Step 7: Input diameter/height of filter
Step 8: Find time to overflow filter and total
flow/ftthe filter can hantlle
Step 9: On figure find for given flow
expected time to overflow filter
Part A. Evaluation of q�
IRAii�
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W
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setlimenY control (&,12,161
400
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starm duration hours: 24
length af slope ft: 250
sfltfence (24, 30►
400
.�..�� 3fi.�.���.
inches/hr a ces per� a �¢� �
cent gpm � ry�rrrr/f�
0.063 2.2957 10 58.15 400 0.145
Part B. Predictetl time and total flowto top filter.
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gpm/hr inches
0.145 12
0.145�. 36
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p Overflow Total Flow
inches hr gal/f
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30,� 97.5 ���
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recommended,
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1, Sed�ment control used For per(mec�r control oF
sedxmer�t and solub[e pollutants in storrn
runoFf shali meet Filttexx�' Soxx°"' Matecial
Specificatior�s and use C�rti6ed Filtrexsc`�
PxlterM�dia'�".
�, �ontractor is required to be a Filtre�`� C�rtified`"'
Installer as deterrnined by Filteeacx� Inteenationa[,
LLC (440-)26-2607 or vlsit we6site at
Filtrexx�.cotn). Certification shall be considered
current if appropraate identificacion ds shown
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descriptian, and details oF project pcior to the bidding
pracess so tliat Filtrexx� can provide design aid and
technicaE support.
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I--Ieight, and Des�gn Capacity of Sediment corstral
and Silt rence. Faltrexx�'Iech Linlc #3304
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Faucette, B, F. Shields, ar'd K. Kurtz. 2006. Removin�;
storm water pollutants and deterrzbining relations
6etweea� hydraulic How-through rates, pollutant
reanavaf ef�ficiency, and physicaf characteristics oF
compost filter media. Second Interagency Canference
asi Research iai �latersheds, 20(}6 Proceediitgs.
Coweeta Hydrolagic Ftesearch 5tatian, NC;. Filtrexx°
Library #166.
Faucette, I3., Sadeghi, A„ and K. Sefton. 2006. USDA
ARS - Evaluatian of Compose Filtet Socics and Silt
Fence in 5ediment arid Nutrient Reductlon froan
Runoff. Filtrexx� Tech Link #3308
Faucette, L.�3., a. vi�k. 2aa6. LE�D Gree,� �uildi„g
Credits using Filtrexx° nrganic I�MPs. Filtrexx� Tech
Link #t33d 1
.
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Faucette L.�., C.F. Jordan, L.M. ftisse, M, Cabrera>
D.C. Coleman, and L.T. West, 2005.
Eva[uation of Storm Water From Campost and
Conventional Erosion Contra( Practices in
Canstructaon Activitles. Jaurnal af Soil and tX/ater
Conservation. G0:6: 288-297.
Faucette, L.B. 2005� Ftemoval attc{ Degcadation of
I'etraleudn f-Iydrocarbons Froan Storrn Water with
Compost. Filtrexx� Tech Linlc #3307
Faucette, L,B. 2005. A C:omparison of PerForrr�ance
and °1`est Methads of Sedianent control and Silt Fence.
Filtrexx� Tech Lin{c #3302.
Faucette, L.B., I�I. Serazar, A. Marks. 2006, Filtrexx�
Polyreaer arid Flocculent Guide. Filtrexx� Library
#601.
Flfield, J. 20Q1, IJeslgnialg far �.ffective Seditneait ancl
Erosion Contral on Canstruction Sites. Farester 1'ress,
Santa I3arbara, CA.
I<eener, H., B. Faucette, and M. Klingtnan, 2006.
Flaw-thraugh rates and evaluation af salids separation
of compost filted- media vs. silt fence ln sedienent
cantrol app(ications. 2006 Arnerican Saciety af
Agricultural and I�[o(ogfcal Engineers Elnnual
Internatianal ConEerence, I'orcland, OIt. Paper No.
l�l)ls4Jl)\J•
Coi7structior6 Activities � Section 1: Erosion & Sediment Cantrol � 7
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Installation Guide. GraFton, Ohto.
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Ty[er, R.W. 2UU3. tJS I'acenc Publicauon #:
2Ud3/0031511 Al. Devices, 5ystetns and Methods
for Controlling Etosion. Patenc /�ppEication Filed on
January 13, 2003
Ty[cr, R.W. 2002. US Patent Application
#10/20$,631. Devrces, Systems aeid IVfeehods far
Ccsntro�[ing Erosion. Patent Pdpplication F'rled on July
31, 20Q1
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Tyler, R.W. 2001. Provisional I'atent App�icatian
#�0/309,054. Devices, Systerrrs and IVfethods for
Concrolling Erosion. Pat�rbt Application Filed an July
31, 2001
Tyler, R.W. 2001. F�Itrexx° Product Nfanua[.
SpeciFications asad Deslgn Considerations for
Piltrexx�' I'roducts, C�rafton, O�I.
'; IIIII� �, � � IIjM�I I il
* � IIIP � �I
Ty�er, R.W: 2007. US Patent # 7,226,240 "Devices,
Systems and Methods for Cc�ntrolling Erosion" Issue
date ��5-07.
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Filere�cx� Inteenational, LLC
Technical Support
354�1 �rafton Eastecn ftoad
GraE'ton, OH 44044
440-926-2607
140-926-4U2i (fax)
Website: www.6�tre3c�c.cotn
E.mail: inEo�filtc°exx.com
See vvebsite or ca11 Eor complete list of ineernationak
installers
The information contained herein niay be subject
to con6dential intellectual properry Uf Filtr�xx�'
Internat�onal, LLC, including but noc 1itr�ited to
US Patent 7,226,240 or I'atec�ts Pending and is the
property crf Filtrexx�' Internacfonal, LLC.
Unauthorized reproduction prohibited.
Fi[trexx� is a Registered Trademarlc of Filtrexx°
International, LL�.
Copyright 2009, Filtrexx� Ineernational, LZC, all
rights reserved.
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Tahle 1.1. Filtrexx� Soxx'"' Material Specifications.
Multi-Filament Multi-Filament Multi-Filament
MaterialType 5miIHDPE 5miIHDPE polypropylenelHDPP) Polypropylene Polypropylene
SafteySoxx DuraSoxx
Material pho4odegradable Biodegradable Photadegradable� Photodegradable Photodegradable
CharacterisYic
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5 in (125mm), 8 in (200mm►, 8 in (200mm1, 8 in �200mm),
S in (200mm►, 12 in (300mm),
8 in (200mm1, 12 in (300mm), �Z in (300mm1,
Design Diameters 12 in (300mm►, 12 in (300mm1, 18 in �400mm1, 18 in (400mm),
18 in (400mm1, 18 in (400mm►, Z4 in (600mm►, 16 in (400mm1, 24 in (600mm►,
32 in (800mm) 32 in (800mm)
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Mesh Opening 3I8 in (10mm) 3I8 in (10mm) 3/8 in (10mm) 1�8 in (3mm) 1/8 in (3mm)
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Tensile Strength 26 psi (1.83 kg/cm2) 26 psi (1,83 kg/cm2) 44 psi (3 09 kglcm2) 202 psi (14,2 kg/cm2►" 202 psi 114 2 kglcm2)
_...��. ...�.�_ ..._.� ............�
% Original Strength from
Ultraviolet Exposure 23% at 1000 hr ND 100% at 1000 hr 100% at 100� hr 100% at 1000 hr
(ASTM G-155)
.._ . .._.. .. _._
Functional
Longevity/ Praject 9 mo-3 yr 6-12 months 1-4 yr 2-5 yr 2-5 yr
Duration
� Tested at Texas Transportation Institu4e/Texas A&M University (ASTM 5035-951.
Table 1.2. Filtrexx� Sediment Control Performance and Design Specifications Summary.
......�� �_� .............. �... ... ........ ��..W_ .... _
Design
Diameter Testing Lab/
-°- � B in (200mm) 12 in (300mm) 18 in (450mm) 24 in (600mm) 32 in (BOOmm) Publication�s)
mDesign & Reference
Performance
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The Ohio State Transactions of 4he
University, Ohio American Society
Effective Height 6.5 in (160mm) 9.5 in (2�OrnmE 14.5 in (360mm) 19 in (480mm) 26 in (650mm) A9ricultural of Agricultural &
Research and Biological
Development Engineers,2006
Center
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Effective 25 in 38 in 57 in 75 in 100 in
Circumference 1630mm) (960mm) (1450mm) (1900mm) (2500mm)
... �..�..� . , ........_ �
Density 131bs/ft 321bs1ft 671bs/ft 1331bs/ft 2001�s/ft Soil Control Lab,
(when filletll (20 kg/m) (50 kg/m) (100 kg/m1 (200 kglm) i (300 kg�m) Inc
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Air Space 20% 20% 20% 20% ppo�a Soil Control Lab,
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Inc
Maximum unlimited unlimited unlimited unlimited urrlirrrited
continuous length
�mmYY�IT 10ft13m) 10ft13m►� 10ft13m) 10ft13m) 1 mmmm n�mm �IT��^^^^^
Staking m�mmmmmmmITIT^^^^ 0 ft (3m)
Requirement
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Maintenance
Requirement 3.25 in 4.75 in 7.25 in 9.5 in 13 in
(sedimentaccumu- (80mm) (120mm) (180mm) (240mm) (325mm1
lation removal atX
height)
�t ri,�xl.i�, ��r� i:,
(continued on next pagel
Construction Activities � Section 1: Erosion & Sediment Control � 9
;
Table 1.2. Filtrexx� Sediment Control Performance and Design Specifications Summary. (confinued)
_..����.� .................. �.. _ _ ��...��. .. ...._.. _____......�_ .... ....�.
Initial The Universityof
Maintenance 22 in (55 cm►; 32 in �80 cm►; 42 in (105 cm►; 64 in (160 cm►; 86 in (215 cml; Georgia & Auburn
Requirement based 1109 Ulinear m 1388 L/linear m 1825 Ulinear m 2776 Ulinear m 3885 Ulinear m University
on Rainfall-Runoff"
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Functianal Z_5yr 2-5yr 2-5yr 2-5yr 2-5yr
Longevity**
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The Ohio State Filtrexx� Design
University, Ohio Tool"", Filtrexx�
MaximumSlope 600ft 750ft 1000ft 1300ft 1650ft Agricultural Library#301,
Length (Q�o) (183m1 (229m) (305m) (396m) (500m) Research and Filtrexx�Tech Link
Development #3304 & #3311
Center
_� _.�.�_...._��_._��...
I Filtrera�Tech Link
The Ohio State #3311 & #3313,
University, Ohio #3308; American
Agriculturel Sociery of Agricul-
Research and tural & Biological
Hydraulic Flow 7.5 gpmlft 11.3 gpm�ft 15.0 gpm�ft 22.5 gpm/ft 30.0 gpm�ft Development Engineers Meeting '
Through Rate (94 Llminlm) (141 L/min/m) (188 Uminlm) (281 Umin�m) (374 UmiNm) Center; University Proceedings ,
of Guelph, School 2006, Second Inter-
of Engineering/ agency Confer-
Watershed Re- ence on Research
search Group in Watersheds,
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2006
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USDA ARS Envi- American Society
ronmental Qualiry of Agricultural
P Factor (RUSLE► 0.1-0.32 0.1-0.32 0.1-0.32 0.1-0.32 0.1-0.32 Lab/University of & Biological
Georgia Engineers Meeting
. __ . _ � .����� __�....�.., �. _.._
Proceedings,2006
Sediment p4 cu. in 396 cu. in 857 cu, in 1631 cu. m 2647 cu. in Filtrexx�Tech Link
Storage (yg50cc) (fi490cc{ (14040cc) (26840cc) (43377 cc) #3314
Capaciri/***
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Total Solids Soil Control Lab, International
Removal 98% 98% 98% 98% 98% Inc Erosion Control As-
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sociation,2006
Filtrexx�Tech Link
USDAARS #3308;American
TatalSuspended 78% �$o�p �g% 78o/a 7g% Environmental SocietyafAgricul-
Solids Remaval Quality Lab Eng n erBsl Meetinlg
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Praceedings,2006
Filtrexx�Tech Link
USDA ARS �3306; American
Turbidity 63% 63% 63% 63% 63% Environmental SocietyofAgricul-
Reduction Quality Lab tural & Biological
Engineers Meeting
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Proceedings,2006
Filtrewc�Tech Link
USDAARS �3308;American
TSS Removal w/ 97% 91% 91% 97% 97% Environmental Sociery of Agricul-
PAM Quality Lab tural & Biolagical
Engineers Meeting
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Proceedings,2006
Filtrexx� Tech Link
USDA ARS #3308; American
TSS Removal w/ Society of Agricul-
Flocculent 97% 97% 97% 97% 97% Environmental tural & Biological
Quality Lab Engineers Meeting
Proceedings,2006
10 � Filtrexx" Law Impact Design Manual � Versiori 8.0
���� �"���rµ�;�� ����f�r°����t_��?s�tr�al __.
Ta61e 1.2. Filtrexx� Sediment Control Performance and Design Specifications Summary. (continuedJ
...._. .....��. � .........�. _..__......�.�.�
Filtrexx�Tech Link
USDA ARS �3308; American
TurbidityReduction o 0 0 0 o SocietyofAgricul�
W�PAM 98/0 96/0 98/a 98/0 98/o Environmental qural&Biofogical
Quality Lab Engineers Meeting
Proceedings, 2006
........�.�_ ..�...... ..._..mm.��� m�m._ .... �. ._�......_ _..
Filtrexx�Tech Link
USDAARS #3308;American
TurbidityReduction 94�0 94% 94% 94% 94% Environmental SocietyofAgricul-
w� Flocculent Quality Lab tural & Biological
Engineers Meeting
_....... --
Proceetlings,2006
Filtrexx� Tech Link
Total USDAARS �3308;American
Phosphorus 34% 34°/a 34% 34% 34% Environmental Society of Agricul-
Removal Quality Lab tural & Biological
' Engineers Meeting
....... .�� .�... �......... .. .
Proceedings, 2006
�..� � �.
American Society
Reactive USDAARS ofAgricultural&
Phosphorus 38% 38% 38% 38% 38% Environmental Biological
Removal Quality Lab Engineers Meeting
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Praceedings, 2006
Total American Society
Phosphorus USDA ARS af Agriculturaf &
Removalw/ 60% 60% 60% 60°/a 60% Environmental Biological
NutrientAgent Quality Lab Proceedingse 2006
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Filtrexx�Tech Link
Reactive USDA ARS #3308; American
Phosphorus 99% 99% 99% 99% 99°k Environmental SocietyofAgricul-
Removal w/ Quality Lab tural & Biological
NutrientAgent Engineers Meeting
Proceedings, 2006
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American Society
USDA ARS of Agricultural &
Nitrate-N Remaval 25% 25% 25% 25% 25% Environmental Biological
Quality Lab Engineers Meeting
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Proceedings , 2006
Ammonium-N USDA ARS
Removal 15% 15°!0 15% 15% 15°/a Environmental
_............
Quality Lab
Ammonium-N USDA ARS
Removal w/ 33% 33% 33% 33% 33% Environmental
NutrientAgent Quality Lab
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Soil Control Lab, International
Motor Oil Removal 96% 96°/a 96% 96% 96% Inc Erosion Control
Association, 2006
Diesel Fuel Testin in � Testin in � 7esYing in Pro �� �Testin in TesYing m S� ���������������������
� g' I g g- g oil Control Lab,
ftemoval Progress Progress ress Progress Progress Inc
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Gasoline Testing in Testing in Tesiing in Prog� ' Testing in Testing in Soil Control Lab,
Removal Progress Progress ress Progress Progress Inc
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Iron (Fe) ZZo�a 22% ZZ% Zzo�a 22% Soil Control Lab,
Removal Inc
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Zinc (Zn) gn� 9% g�� g% 9% Soil Control Lab,
Removal Inc
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Manganese (Mn) a�lo gm�a 8% 8% 8% Soil Control Lab,
Removal Inc
<< � �
(continued on next pageJ
. + . -, . .
Table 1.2. Filtrexx� Sediment Control Performance and Design Specifications Summary. (cOntinuedl
��_� s� �o .��_.. s� �o......... .,� M s� �0 67 �� ..._ � � _...... ..___. ..
�___... .�
Total coliform USDA ARS
Removal^ ° ° o % 67% Environmental
_ ��.� _�
Quality Lab
E. coli USDA ARS
Removal^ 67% 67% 67% 67°/a 67% Environmental
fluality Lab
_.��, .�._. __.....�. ........_.
USDA ARS �
Enterococcus 47% 47% 47% 47% 47�o Environmental
Removal^ Quality Lab
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USDA ARS
E. coli Remaval w/ 98% 98% 98°/a 98% 98% Environmental
Bacteria Agent^ Quality Lab
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Fecal coliform USDA ARS
Removal w/ 98°!0 98% 98°/a 98% 98% Environmental
Bacteria Agent^ Quality Lab
.. . _�...... �.....
�.
Enterocaccus USDAARS
Removal w/ 91% 91% 91°!m 91% 91°/a EnvironmenteB
Bacteria Agent^ Quality Lab
Clay (<0.002mm►
65°!o m�IT�IT65�o 65°k 65% �WWW65%� �E vsonmental m
Removal# Quality Lab
„ .__ .� � USDAARS
SiIt10.002-0.05mm) 64% 84% 64% 64% 64% Environmental
Removal# Quality Lab
..._ .._ W.�.. �..
Inlet Protection,
Ditch Ditch Ditch
Other Inlet Protection, Protection, Ditch Protection, Protection, Protection,
Recommended Ditch Concrete Concrete Concrete Concrete
Uses Protection, Slope Washout, Washout, Washout, Washout,
Interruption Filtration System, Filtration System Filtration Filtration
Slope System System
Interruption
" Based on rainfall intensity of 12.5 cm (5 in►/hr applietl to a bare clay loam soil at a 10% slope; runoff flow rate of 108 ml/sec/linear m(0.52 gpm/linear ft�;
and mean runoff volume of 230 Um2 (6.3 g/ft2►.
** Functional Longevity is depentlent on UV exposure, freeze/thawfrequency, region of US/Canada, runoff-sediment frequency/tluration/loading, and
adherence to specified maintenance requirement.
*** Setliment Storage Capacity = sediment accumulation behind �directly upslope►+within the device.
^ Based on manure treatetl soils where bare soil control exhibited an average MPN for total coliform = 2.02X108/100 mL, E, coli. =1.72X108/100 mL,
Enterococcus =1.43X106/100 mL.
# Based on average runoff-sediment concentrations on 2500 mg/L on a silt loam soil.
12 I Filtrexx'� Law Impact Design Manual � Version 8.0
� �' �
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Figure 1.1. Engineering Design Drawing for Sediment Control
FILTREXXO SILT SOXXT"'
2°' HEP,dlNIdTH W�OdEN
STAKESPLACED 10' ON CENTER
SECTION VIEW
OTECTED
TOP VIEW
COMPOST SOCK CONNECTION/ATTACHMENT DETAIL
�VERLAf""YIC�dt;_> �a��'w11�7'�
F�RM C�:'�f�f��Y���':U'8i"';rA��l
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7ES:
1. P,LL MATERIAL ?(3 MEEf FILTREXX� SPECIFICATIONS.
2. SBLT SOXXT"^ FILL TO MEET APPLICATION REQUIREMENTS.
3. COMPC7ST MATERIAL T� 6E DISPERSED ON SITE, AS
C�EfERMINED BY EhlGINEER.
"� „�� ff If'i � 1� C N l o'^ �; !fV l", `..
,.
�
FILTREXX� 51LT SOXXT'�
(S" 4" OR 12" TYPIGAL}
FILTREXXO PYRAMID STAKING DETAIL
2"x2"x36" HARDWOOd STAKE, 1 d' O,C,.
START6NG 5' FROM ANGLED STAKES-°-°-°°
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Figure 1.2. Maximum Slope Lengths of Filtrexx� Sediment Control Based on a 1 in (25 mm1/24 hr Rainfall Event.
Table 1.3. Maximum Slope Lengths for Filtrexx� Setliment Control Based on a 1 in (25 mml/24 hr Rainfall Event.
_ � __.��. ��
° Meximum Slope Length Above Sediment Control in Feet (meters►*
..... _.. _W__..... .� ................�
B in (200 mm) 12 in (300 mm) 18 in (450 mm) 24 in (600mm) 32 in (BOOmm)
Slope Percent Sediment control Sediment control Sediment cantrol Sediment control Sediment control
......._ � _.�..� �. _ . .�....... ....._�.._.
6.5 in 9.5 in 14.5 in �g in (480 mm) "* Z6 in
(160 mm►"* (240 mm) ** (360 mm) ** (650 mm) **
_ ��. ._..._. �.______�..�
2�orless) 600�180) 750�225) 1000(300) 1300�400) 1650(500)
5 4001120) 500 (150) 550 (165) 650 (200) 750 (225)
_.�.... ...�.�.. _.. ___� ...__......._..
10 200160) 250�75) 300(90) 400�120) 500�150)
_..�........�.._.�.. .._ ..._...�w_.�._ _.� � �.._...�.a._ �. ..� __ ... �.
15 140 (40) 170 (50) 200 (60) 3251100) 450 (140)
20 100130) 125136) ...���� 140142) � 260180) 4001120)
..� ���� ,
25 80�24) 100130) 110133) 200160) 275185)
_ �, ......�.�..��._.�..�...�� „ _ _..�.�
30 60�18) 75�23) I 90�27) 130�40) 200�60)
..._-_-___.� _.. � ..... W..._
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�.. � _ ..����...._. �_..�.�._ __ ....._.�� ..�. _m. .
40 60 (18) 75 (23) 80 (24) 100 (30) 125 �38)
� 45 40112) 50 (15) 60 (18) 80 (24) 100 (30)
..�...e�...�..�..�...�. __WWW_.�.._.. __��_ .......
50 40I12) 50�15) 55117) 65�20) 75�23)
" Based on a failure point of 36 in (0.9 m) super silt fence (wire reinforced) at 1000 ft(303 m) of slope, watershed width equivalent to receiving length of
sediment control tlevice, 1 in/ 24 hr �25 mm/24 hr► rain event.
"* Effective height of Sediment control after installation and with constant heatl from runoff as determined by Ohio State University.
14 � Filtr�xx� Lauv Impact C7esign Manual � Version �.0
...... ... _.... ..... . . _ .._ 1��0.�'��tr�����'aZ����ra��t.�°�r����l
Table.l.4. Maximum Slope Lengths for Filtrexx� Sediment Control Based on a 2 in (50 mm1/24 hr Rainfall Event.
..� ...._.�..� . ����........��_....��.....__ . .__�........��...._._. P � _. .� ._�.�......��...���_..
Meximum Slo e Len h Above Sediment Contral in Feet (metersl"
... ....... ._........_.._ _.„� _WVWWV._ _.....� ..�
B in (200 mm) 12 in (300 mm) 18 in (450 mm) 24 in �600mm) 32 in (BOOmm)
Slape Percent Sediment control Sediment control Sediment contral Sediment control Sediment control
�.�._�_���.�.__�� .__..� �..__ ��_������..
6,5 in 9.5 in 14.5 in 19 in 26 in
(160 mm) "* (240 mm) "" (360 mm) "" (480 mm) "" (650 mm) *"
.�_. � .....� ..�....�_.. _. ���
2�orless) 300�90) 3751110) 500�150) 6501200) 850�260)
5 � � � 200 (60) 250 (75) 275185) 325 (100) �� 400 (120)
........_.�....�.�.�...._....�....�.. _ ......_.� . �____ ..._.....
10 100(30) 125�35) 150�45) 200�601 275185)
...� . �w _
15 70120) 85�25) 100�30) 160150) 225170)
_ ���_�.�. �.......... �� . �_...__.�
20 50 (15) 65120► 70120) 130 (40► 18D (55)
_�.....�. ..ww _...._. .�.���......� .
25 40�12) 50115) 55116) 100�30) 150�45)
30 30�9) 40112) 45(13) � 65120� 100�30)
�. ...._._._._.____�..m , �.� .
35 30 (9) 40112) 45113) 55118) 75 (23)
�..�. �....�_������ ...._ ..._�
40 30 �9) 40112) 45 (13) 50115) 60 (38)
�..._..... 45 � 2016) 2518) I 30 (9) 40112) 50115)
�����u����u__ WW ....... ����_. ..T .�..�.
50 20 (6) 25181 3019) 35110) 40 (12)
* Based on e failure point of 36 in �0.9 m) super silt fence (wire reinforcetl► at 1000 ft(303 m) of slope, watershed witlth equivalent to receiving length of
setliment control tlevice, 2 in/ 24 hr (50 mm/24 hr) rain event.
*" Effective height of Sediment control after installation antl with constant head from runoff as determined by Ohio State University.
�.E� (l�:ItL�rE' r0 (".
Construrtion dtctiviti�s ( S���u�o� �.°, Erosian & S�climeni Cc�rrtr�k ���
Appendix B: Routine Facility Inspections
Keep documentation of all routine facility inspections using provided inspection forms.
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Appendix C: Employee Training Records
Keep a sign in sheet for every Employee Training Session your facility holds.
Retain those records with this plan.
Stormwater Training / Refresher Course - Employee Sign-In Sheet
Date Employee Name wwww mmm_IT � EmployeemmSignature
I._ �w ..� �.....�.. ........ ._..
Appendix D: Annual Stormwater Compliance Evaluation Form
Annual Stormwater Compliance Evaluation Report for
Akers Towing
Name of Person(s) completing evaluation:
Date and time of evaluation:
Weather conditions during inspection:
Areas inspected during evaluation:
Inspect all exposed areas of the facility for evidence of contamination of runoff. Areas that need
to be inspected include areas where spills have or are likely to occur, all structural and non-
structural BMPs areas, the storm water collection system, and all discharge points from the
facility.
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Are there any new sources of potential stormwater pollutants not previously identi�ed in the
Stormwater Management Plan? YES / NO
If you circled yes, how will the Plan be modified to prevent these sources from contaminating
runoff?
Have either visual inspections or monitoring during the past year indicated pollution of
stormwater which have not yet been addressed? YES / NO
If so, describe the potential sources of any pollutants found in runoff
What actions or modifications to the Plan are needed to prevent these pollutants from reaching
the receiving waters?
Describe any other places where the site inspection indicates noncompliance with the
Stormwater Management Plan
What changes to the Plan are needed to ensure that the site is in compliance?
Certi�cation of Compliance
This Compliance Evaluation Report has been prepared by qualified personnel who properly gathered
and evaluated information submitted for this Report. The information in this Report, to the best of my
knowledge, is accurate and complete. After inspection of all exposed industrial areas, BMPs, and storm
water systems, and review of the Stormwater Management Plan I find that this facility is in compliance
with the Stormwater Management Plan.
Name (print):
Title;
Signature� � � Date:
11.0 Summary of Amendments and Updates
Instructions: Keep a record of changes to the Stormwater Management Plan that are required as a result
of monitoring, inspections, or at the request of City of Denton personnel.
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