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7015 Fairbanks N. Houston Rd. ∙ Houston, TX 77040 ∙ 713-937-7602 www.parkusa.com _________________________________________________________________________________________________________________________________________________________________________________________________________________________________

Storm Water Quality Management Plan SWQMP- COH Form- 2017.doc

______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

Documents for Obtaining:

City of Houston

Storm Water Quality Management Plan For

(Site name)

(HOUSTON), Texas

Storm Water Quality Management Plan Prepared For:

(Name)

(Address)

Storm Water Quality Management Plan Prepared By:

(Printed Name)

(License Number)

(Address)

(Phone Number) Engineer’s Seal & Signature

(Note: Plans submitted to the City of Houston as part of a storm water quality permit application must be sealed by a Professional Engineer licensed to practice engineering in Texas)

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Storm Water Quality Management Plan City of Houston, Texas

Project Information:

Site Name:

Address/Location:

Permittee Information:

Name:

Contact:

Address:

Phone:

Prepared By:

Name:

Address:

Phone:

Email:

1.0 Site Description

A. Site Location

(Provide a description of site location. (Jurisdiction (e.g., in the City of Houston,and unincorporated Harris County), name of the MUD if applicable, street address,latitude/longitude, subdivision name if applicable, direction from intersections orlandmarks, etc.)

B. Owner Information

The owner of the property is: (or)

The property is leased to: (if applicable)

This plan is for the proposed New Development or Substantial Re-development (circle one) area of ____ acres as part of the _____ acres total tract located at (your facility location), Houston, Texas. All management of storm water runoff and quality control should follow the BMP as outlined below:

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1.1 Storm Water Quality Management Plan

The SWQMP functions as a mitigation plan for the potential impacts of pollution in storm water discharge from the normal operating activities of a site for the life of the development. This plan will contain a site description, planned controls and procedures for maintenance and inspection.

1.2 Site Description

A. Site LocationB. Names, addresses and phone numbers of owner and contact person/sC. Type of development or substantial redevelopmentD. Nature of Activities (including Standard Industrial Classification Code)E. Give existing NPDES storm water permit numbers or provide a copy of the NOI or

NPDES permit application. If these are unavailable, present a statement of intent tofile NOI or NPDES (Note! Copy of NOI or NPDES must be submitted whenavailable).

F. Estimates of the total site area and the total area affected by the development.G. Site map (s) showing:

1. Vicinity map2. Areas of development3. Areas not to be developed4. Drainage areas and their acreage, patterns and approximate slopes anticipated

after development (describe outfalls)5. Wetlands and surface waters6. Locations and listing of activities which may generate pollutants and potential

discharge, including hazardous materials treatment, storage or disposal facilities,parking areas, loading areas, etc.

7. Locations of any existing structural and non-structural controls8. Locations where storm water is discharged to the MS4 and the name of the MS4

operator.

1.3 Controls

A. Non-Structural Controls (Describe non-structural BMPs and how they will beused at the site if applicable)

An operational and/or maintenance practice will be applied to prevent or reduce apotential storm water run-off contact with pollution causing activities.

1. Litter Control. Consistent removal of litter from developed areas before runoff orwind moves these materials to receiving waters.

2. Cleaning & Maintenance. Consistent cleaning of oil spill and other liquidpollutants from vehicle parking areas to reduce pollutants in receiving waters.

3. Landscaping. Lawn care and landscaping practices using native, lowmaintenance species, where feasible, to reduce water and fertilization. Grassclippings will not be swept or blown into storm sewers or interceptors.

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4. Chemicals. Proper applications of fertilizers and pesticides will be used tominimize the potential of storm water pollution.

B. Structural Controls (Describe structural BMPs like retention or detention ponds, etc.in addition to StormTrooper® example below) Park StormTrooper® Storm WaterInterceptor,713-937-7602, 800-256-8041 (COH New Development/SignificantRedevelopment Table 3, 4.4.2 Oil/Grit Separator) is the structural control to beinstalled in the storm water lateral connection pipe, approximately __’ deep with __”inlet pipe into the control manhole and __” outlet pipe __’ to main storm drainageMS4 (see site map for locations).

1.4 Maintenance

A. A lawn maintenance company will perform regular lawn and detention pondmaintenance, including removal of clippings and parking lot debris. Typically, this willbe every week in warmer months and every two to three weeks in cooler months.

B. The perimeter of the site will be inspected at least once weekly for wind blowndebris.

C. Dumpster Trash will be picked up on a weekly schedule including cleaning ofdumpster area.

D. Any oil or chemical related spills will be cleaned up immediately and disposed of perlocal, county and TCEQ regulations.

1.5 Inspections

A. A qualified employee or manager will perform recorded inspections quarterly or afterany major storm event, following StormTrooper® Inspection Guidelines andMonitoring Report. Inspections reports will be kept in a secure location available forreview by local inspectors.

B. Management will contract a professional engineer registered by the State of Texasto perform an annual inspection and complete the Annual Structural ControlCertification for SWQP Renewal Form. This will be submitted along with renewalfees and any pumping truck manifests.

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1.6 Sizing of StormTrooper® Based on City of Houston guidelines

If the interceptor is subject to rainwater discharge, it should be considered stormwater (regardless if the final discharge is draining into the sanitary sewer or storm sewer). The StormTrooper® stormwater interceptor is selected based on anticipated flow rate (gpm) of the storm sewer.

Using the “First Flush Principle” is the acceptable means of determining treated stormwater flow rates. The initial runoff flow will be more polluted than the stormwater that runs off later, after the rainfall has “cleansed” the catchment area. The stormwater containing this high initial pollutant load will be treated with the StormTrooper® stormwater interceptor. Studies have found that significant concentration pollutant loads are retained when at least 90% of the storm events are treated.2

To determine the flow rate of the StormTrooper® stormwater interceptor, the flow rate of the first flush is estimated. An accepted practice is to calculate the drainage using the Rational Method for estimating design peak discharge from a small watershed.2

Q = A x C x I x 449

gpm

1,164 gpm or 2.59 cfsQ = gpm

gpm

Q = 12 x .80 x .27 x 449

This example recommends the Model

rated for 1,375 gpm (or 3.06 cfs).StormTrooper SWST-25

Solution:The City of Houston requires Stormwater treatment of at least 80% of annual stormwaterevents; or Treated Intensity Factor of I=.27

Example:A common application is stormwater run-off from a 12 acre commercial building site. The stormwater run-off consists of trace amounts of oil, litter, and road grime. Using the Rational Method, and an average Runoff Coefficient of C=.80, the treated flow rate is calculated:

AacreQ =

gpmx C

Formula:Multiply the number of Acresthe following equation to obtain the treated flow rate:

x I x 449Where:

A = Drainage Area (acres)C = Runoff CoefficientI = Treated Rainfall Intensity

449 = Conversion from cfs to gpm

Q = Treated Flow Rate (gpm)

2

A. Actual Sizing Calculations for the site located at .

Outfall #1

A Area

(acres)

C Runoff

Coefficient

I Rainfall Intensity

Qcfs Flowrate

(cfs)

Qgpm Flowrate

(gpm)

StormTrooper Model

(see Table 1 for required size)

x x = x 449 =

2 Storm Water Quality Management Guidance Manual 2001, City of Houston/Harris County Flood Control District/Texas Dept of Transportation Stormwater Management Joint Task Force

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B. Table 1: StormTrooper Size Table for Typical Stormwater Treatment Flow Rates

Cylindrical Designs Rectangular Designs

Model No Gallons GPM CFS Model No. Gallons GPM CFS

SwST-05C 500 300 0.67 SwST-10 1000 650 1.45 SwST-06C 600 400 0.89 SwST-15 1500 875 1.95 SwST-08C 800 500 1.11 SwST-20 2000 1125 2.51 SwST-10C 1000 650 1.45 SwST-25 2500 1375 3.06 SwST-15C 1500 875 1.95 SwST-30 3000 1600 3.56 SwST-20C 2000 1125 2.51 SwST-35 3500 1775 3.95 SwST-25C 2500 1375 3.06 SwST-40 4000 1950 4.34 SwST-30C 3000 1600 3.56 SwST-45 4500 2150 4.79 SwST-35C 3500 1775 3.95 SwST-50 5000 2350 5.23 SwST-40C 4000 1950 4.34 SwST-60 6000 2675 5.96 SwST-45C 4500 2150 4.79 SwST-70 7000 3000 6.68 SwST-50C 5000 2350 5.23 SwST-80 8000 3325 7.41 SwST-60C 6000 2675 5.96 SwST-90 9000 3625 8.07

SwST-100 10000 3900 8.69 SwST-110 11000 4175 9.30 SwST-120 12000 4425 9.86 SwST-130 13000 4725 10.52 SwST-140 14000 4950 11.02 SwST-150 15000 5200 11.58

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1.7 StormTrooper® Specifications

A: General:

1. A Stormwater Interceptor shall be provided and installed as indicated on plans. Systemshall be Park Environmental Equipment Company, StormTrooper® Model SwST-XX.The system shall be installed in strict accordance with the manufacturer'srecommendations. Manufacturer shall have been in business for 10 years in the designand manufacturing of wastewater products. Manufacturer shall provide a one-yearlimited warranty. Manufacturer shall provide proof of third party testing by anindependent applied engineering and physical sciences testing organization.

2. The Stormwater Interceptor shall be provided with installation, operation & maintenancemanuals that contain clear and concise descriptions.

3. Contractor shall submit required copies of manufacturer's equipment specification forengineer's review. Shop drawings shall include the following:

a) Detailed manufacturer's data including installation plan/elevation drawings, rebarlayout drawings, buoyancy calculations, and site specific coalescing plateperformance analysis for TSS & TPH, all certified by a registered professionalengineer.

b) Manhole frame/cover specifications.c) Joint Sealant specifications.d) Coatings and/or concrete additives specifications.

4. Stormwater Interceptor design shall conform to criteria set forth by the InternationalAssociation of Plumbing and Mechanical Officials (IAPMO), the American PetroleumInstitute, and all other governing state and local code requirements.

5. Contractor shall field verify all dimensions for piping inverts and interceptor excavationdepth.

B: Materials:

1. Concrete: The Stormwater Interceptor tank shall be constructed of precast concretehaving a 28 day minimum compressive strength of 4500 PSI using a Type I PortlandCement.

2. Steel Reinforcement: The Stormwater Interceptor shall be designed for H-20-44 trafficloading as defined by AASHTO 14th ED. 1989 using a 30% impact factor. Structuralreinforcement placement shall be in accordance to ACI. All reinforcement steel shallcomply with ASTM A615 grade 60 or ASTM A706 Grade 60. Bar bending shall complywith latest ACI standards. Lifting inserts to be installed for handling and be installed permanufacturer's requirements.

3. Manhole Access: Interceptor shall have adequate manhole access covers and frames topermit access for cleaning all areas of the interceptor. Each manhole access shall beminimum 24” diameter clear opening. Cast iron frame and covers shall conform toASTM A48-83 Class 30. Fabricated steel access covers shall be ASTM A36 steelconstruction and hot-dipped galvanized after fabrication. All access covers shall betraffic duty. Access covers shall be placed at grade elevation by using concreteextensions.

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4. Pipe Material: All pipe and fittings shall be of materials approved by engineer.

5. Coalescing Media: The oil coalescing media pak shall be fabricated of an oleophillicpolypropylene plastic material and assembled into modules with 304 stainless steelmaterials. Media assembly shall be self-cleaning and removable.

6. The Stormwater Interceptor shall be equipped with a system to control by-pass manholeto control unusually high rainfall. The control manhole system shall prevent re-suspension and scouring of the storm water interceptor. The control by-pass systemshall be equipped with an adjustable weir and stainless steel debris screen.

C: Interceptor Performance:

1. The interceptor shall be sized to treat the flow generated by the design rainfall intensityof the Harris County area, which is based on 0.27-inch per hour. Using 0.27-inch perhour rainfall intensity, the rational formula (Q=CIA) shall be used to determine thedesign flow rate for impervious (C=0.80) commercial drainage areas.

2. The Interceptor shall be capable containing and treating a wide variety of concentrationand loads of floatable and non floatable constituents such sand, sediments, oil, grease,grit and trash debris to the acceptable loadings of EPA and local authorities.

3. Influent Characteristics - The interceptor shall be designed for intermittent and variableflows of water, oil, or any combination of non-emulsified sediment/oil/water mixturesranging from zero to 2,400 gpm (adjust number accordingly). Operating temperatures ofthe influent storm water shall range from 40F to 60F. The specific gravities of thehydrocarbons shall range from .68 to .95 at operation temperature and have aconcentration of 400 PPM or less.

4. Effluent Characteristics – The total petroleum hydrocarbon (TPH) concentration of theinterceptor effluent shall not exceed 10 mg/l. The system shall be capable of removing aminimum of 80% of the total suspended solids (TSS).

5. The Interceptor manufacturer shall provide recommended maintenance and operationsinstructions that comply with EPA, county and local monitoring requirements.

D: Installation:

1. The Interceptor shall be installed in strict accordance with the manufacturer'srecommendations and according to plans and specifications. The manufacturer shallhave representation during the setting procedure to insure proper installation.

2. The Stormwater Interceptor shall be installed on level, undisturbed soil or an approvedcompact fill with a load bearing capacity of minimum 2000 PSF.

3. The interceptor shall be backfilled after placement with an approved backfill material.Backfill of all sides of structure shall be performed simultaneously to prevent unbalancedlateral pressures during construction.

4. All joints shall be made watertight. Manufacturer shall seal joints with a plastic flexiblegasket conforming to AASHTO M-198-75 for bitumen gasket.

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5. All interceptor inlet/outlet/vent piping shall be installed in accordance to manufacturer’srecommendations and project specifications.

6. Interceptor shall be filled with clean water prior to start-up of system. Followmanufacturer’s recommendations for testing and start-up.

1.8 Maintenance

A preventative maintenance cleanout schedule is the most valuable tool for maintaining the proper operation of Park StormTrooper®. Interceptor maintenance costs will be greatly reduced if a good housekeeping plan for the property is developed i.e., trash pickup, lawn maintenance, dumpster control, etc.

Typically, regulatory entities require the manufacturer to recommend routine maintenance. ParkUSA recommends StormTrooper should be inspected after any major storm event or at least quarterly (see Table 3). StormTrooper should be completely pumped out when sediment or oil levels reach the capacities listed in Table 2. Most authorities with annual renewal programs require pump out at least once a year. Monitoring results should be recorded and submitted annually along with any pump out manifests and a PE stamped certification that the system is in operation per the original design. All documents are helpful in obtaining an annual permit renewal.

A. Maintenance Procedures

1. Easiest observation and maintenance is best accomplished during non-flow (dryweather) conditions 3-4 days after the most recent rain.

2. Remove the control manhole basin cover. Remove and observe optional inflowprotectors. Observe for trash and debris and remove if necessary. Trash is typicallycollected in the control manhole. This is the most important maintenance requirement.Failure to remove trash and debris from the control manhole could be problematic toentire system.

3. Remove interceptor covers or open hatchway to observe conditions. Remove optionalhatchway safety net (“HatchNet”) if applicable. If absorbent pillows are utilized, observetheir condition. Uniform browning or gray color of the pillow means they should bereplaced. Observe baffle debris screen and clean if necessary.

4. Coalescing media (white plates) is provided for added treatment of Total PetroleumHydrocarbons (TPH) and removal of the finer Total Suspended Solids (TSS).Coalescing media give the environmentally conscience user assurance that effluentstormwater will leave owner’s property with contaminate loadings lower than 10 mg/l.

5. Coalescing plates are self-cleaning and seldom require maintenance unless broken orcrushed. Do not walk on or stand on plate packs. Call Park Environmental Equipment(800-256-8041), for assistance if coalescing media is damaged.

6. Check of the depth (level) of oil and sediment with a tank sampler device designed forthis purpose. Two examples listed below may be purchased via Internet. Checkwww.pollardwater.com (Sludge Judge) and www.carpco.com (Discrete SludgeSampler). See Figure 1.

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http://www.pollardwater.com/

http://www.carpco.com/



7. Find your StormTrooper® Model Number on Table 2 below. The model number listsrecommended maximum capacities of oil and sediment. Vacuum service should beconsidered when capacities exceed these recommended levels.

Table 2: Recommended Service Levels

Rectangular Designs Cylindrical Designs Model

Number Oil

Depth Sediment

Depth Model

Number Oil

Depth Sediment

Depth SwST-10 12” 12” SwST-05C 12” 12” SwST-15 12” 12” SwST-06C 12” 12” SwST-20 12” 12” SwST-08C 12” 12” SwST-25 12” 12” SwST-10C 12” 12” SwST-30 12” 12” SwST-15C 12” 12” SwST-35 12” 12” SwST-20C 12” 12” SwST-40 12” 12” SwST-25C 12” 12” SwST-45 12” 12” SwST-30C 12” 12” SwST-50 12” 12” SwST-35C 12” 12” SwST-60 12” 12” SwST-40C 12” 12” SwST-70 12” 12” SwST-45C 12” 12” SwST-80 12” 12” SwST-50C 12” 12” SwST-90 12” 12” SwST-60C 12” 12” SwST-100 12” 12” SwST-110 12” 12” SwST-120 12” 12” SwST-130 12” 12” SwST-140 12” 12” SwST-150 12” 12”

CONTROL MANHOLEObserve and RemoveExcess Trash & Debris

INTERCEPTOR SECTIONCheck Depths of Oil &Sediment with SamplerDevice. Schedule VacuumTruck Service if Needed

Sediment

Figure. 1 StormTrooper® Inspection

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B. Vacuum Truck Recommendations

1. Typically, the vacuum truck will skim off the oil and other floatables. In most geographicareas the sediment can be disposed of in a sanitary landfill once dewatered. Pollutantsare not allowed to be discharged back into the sanitary or storm sewer systems.

Sediment

Figure. 2 StormTrooper® Maintenance

2. After cleaning via vacuum truck, refill the StormTrooper® with water to the topcoalescing media plate. Replace the absorbent pillows if utilized. Replace manholecovers, safety nets and inflow protectors (if provided). Close and latch hatchway.

3. After cleanout is accomplished, obtain a copy of the service truck manifest. Update theStormTrooper® Monitoring/Maintenance Report and attach a copy of the manifest to thereport.

C. Safety and Environmental Considerations

1. All normal safety precautions should be taken with this equipment to prevent accidentsand fires. Normal fire prevention measures must be taken to prevent fire danger fromthe separated oil.

2. Care should be taken to keep the area around the interceptor clean to preventaccidents.

3. Dispose of the separated oil properly, preferably by recycling.

4. The atmosphere inside the Park Environmental Equipment StormTrooper® is a confinedspace and may be hazardous. Entry is not recommended without proper equipment.Follow OSHA confined space entry requirements.

5. SAFETY AND ENVIRONMENTAL PROTECTION ARE THE RESPONSIBILITY OFTHE USER. PARK EQUIPMENT CO. ASSUMES NO LIABILITY FOR MISUSE OFTHIS SEPARATOR OR FOR USE OUTSIDE THE PARAMETERS FOR WHICH IT ISDESIGNED.

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Appendix A

Documentation

NPDES or TPDES Permit or NOI Maintenance and Inspection Schedule

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NPDES or TPDES Permit or NOI (Insert NPDES or TPDES permit or NOI)

EXAMPLE

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CITY OF HOUSTON NEW PERMIT ($363.41)Storm Water Quality RENEW AL ($195.66)

(SW Q) Permit Application AMENDMENT ($195.66)

Project Name:HCAD Account #: SW Q Permit #:Date of this application: Date of current permit expiration:Site location or address:Site Acreage: SW Q Structural Control:Provide the latitude and longitude of the SW Q structural controlLatitude (Deg/Min/Sec): ( ) ( ) ( ) Longitude (Deg/Min/Sec): ( ) ( ) ( )OWNER’S NAME: Phone #:Email: Fax #:Address:CONTACT’S NAME (IF DIFFERENT THAN OWNER):Email: Phone #:Address:Submitted with this application:

Fee(s) SW QMP Post Construction Certification – Original CertificationSW QMP Engineer’s Certification SW QMP Post Construction Certification – Annual RenewalSW QMP Owner’s Affidavit – Original Certification SW QMP ManualSW QMP Owner’s Affidavit – Annual Renewal Inspection documents (pictures, manifest, etc)Other/Notes:

Notice: This application is required by Article XII, Chapter 47 of the City Code of Ordinances governing Storm W ater Discharges. Theapplicant hereby agrees to comply with the Code of Ordinances which includes the following conditions:1. This permit expires on the expiration date indicated and must be renewed annually.2. The SW Q permittee shall submit a renewal application and the applicable renewal fee not more than 30 days but not less than five

days prior to expiration. Failure to renew the permit may result in enforcement action.3. The attached Owner’s Affidavit certifies that the owner has read the maintenance and operation requirements of the Storm Water

Quality Management Plan (SW QMP) and agrees to follow the requirements of the plan.4. This permit shall be amended if there is a change in ownership. Amendment shall be submitted within ten days after any such

transfer to a subsequent owner or to a third-party permittee.5. The obligation to have and comply with a SW Q permit shall continue in perpetuity and shall run with all the land covered by the

original SW Q permit.The City may revoke this permit if the City Engineer determines that any information on this application is false. This SW Q permit iseffective upon signature by the City’s Storm Water Quality Engineer, or his/her authorized representative.

Owner’s Signature Date

Permit #:Renewal #:New Effective Date:Next Permit Expiration Date:

CITY USE ONLYPermit Issuance

Storm Water Quality Engineer Date

Revision 01/01/17

SWQMP OWNER AFFIDAVIT – ORIGINAL CERTIFICATION Rev. 7/5/2011

CITY OF HOUSTONStorm Water Quality Management PlanOwner’s Affidavit – Original Certification

I, ________________________________, acting as ____________________ for ___________________________________, have read the Storm Water Quality Management Plan and associated drawings and agree to implement the requirements described therein for the property known as: “_____________________________________________________________________”.

Owner’s Name: __________________________________________________________

Address: ________________________________________________________________

City: _________________________ State: __________________ Zip: ______________

Phone Number: _______________________ Fax Number: __________________

E-mail, (if available): ______________________________________________________

Owner’s Signature: _______________________________ Date: ___________________

State of _____________________ §

County of _____________________ §

Before me, a notary public, on this day personally appeared _______________________ known to me (or proved to me on the oath of __________________________) to be the person whose name is subscribed to the foregoing instrument and acknowledged to me that he/she executed the same for the purposes and consideration therein expressed.

Given under my hand and seal of office this _____ day of ___________, ____________.

Notary Public Signature & Seal ________________________

Permit #: _____________________

Project Name: ____________________________________________________________

Project Description: ______________________________________________________

Project Location: ______________________________________________________ Once executed, please return the original affidavit and Engineer’s Certification – Original Certification, along with your original SWQMP, to:

City of Houston Department of Public Works and Engineering Storm Water Quality Engineer 1002 Washington Ave., 2nd Floor Houston, Texas 77002

CITY OF HOUSTONStorm Water Quality Management PlanOwner‘s Affidavit – Annual Renewal

I, , acting as Owner or authorized agent for the Owner of the property known as: “Water Quality Permit #

”, recorded with Storm , have implemented from

, 20 the Storm Water Quality Management Plan for this property and agree to continue implementing the requirements described therein for the next year.

Owner’s Name: Authorized Agent’s Name (if applicable): Address:

City: State: Zip: Phone Number: Fax Number: E-mail, (if available):

Signature: Date:

State of §

County of §

Before me, a notary public, on this day personally appeared known to me (or proved to me on the oath of ) to be the person whose name is subscribed to the foregoing instrument and acknowledged to me that he/she executed the same for the purposes and consideration therein expressed.

Given under my hand and seal of office this day of , .

Notary Public Signature & Seal

Permit #:

Project Name:Project Description: Project Location: Once executed, please return the original affidavit and Engineer’s Certification – Annual Certification, along with your original SWQ renewal application, to:


SWQMP OWNER AFFIDAVIT – ANNUAL RENEWAL Rev. 7/5/2011

CITY OF HOUSTONStorm Water Quality Management PlanEngineer’s Certification

I, , a Professional Engineer duly licensed to practice in the State of Texas do hereby certify that the information presented in this document was prepared under my direction and supervision and complies with the City of Houston, Texas Ordinance No. 2001-800, codified in Chapter 47, Code of Ordinance, City of Houston, and Storm Water Quality Management Guidance Manual. Any parts of design/sizing of the permanent storm water quality feature(s) that do not meet current minimum design criteria contained within the Ordinance and Manual are noted below.

(Describe any exceptions to the criteria here.)

Printed Name:

Affiliation:

Address:

City:

Phone Number:

E-mail Address (if available):

State:

Fax Number:

Zip:

Engineer’s Seal and Signature:

Date:

Permit #:

Project Name:

Project Description:

Project Location: Once executed, please return the original certification to:


SWQMP ENGINEER’S CERTIFICATION Rev. 7/5/2011

SWQMP POST CONSTRUCTION CERTIFICATION – ORIGINAL CERTIFICATION Rev. 7/5/2011

CITY OF HOUSTONStorm Water Quality Management PlanPost Construction Certification – Original Certification

I, ___________________________________________, a Professional Engineer duly licensed to practice in the State of Texas do hereby certify that the structural components recorded with Storm Water Quality Permit # _____________________ appear to still be constructed and in place as originally designed for the Storm Water Quality Management Plan of the property known as: “_____________________________________________________________________”.

Name: __________________________________________________________________

Affiliation: ______________________________________________________________

Address: ________________________________________________________________

City:_____________________ State: ______________ Zip: ______________

Phone Number: ___________________ Fax Number: _________________

E-mail, (if available): ______________________________________________________

Engineer’s Seal and Signature: ________________

Date: _____________

Permit #: _____________________

Project Name: ____________________________________________________________

Project Description: ______________________________________________________

Project Location: ______________________________________________________ Once executed, please return the original certification to:


CITY OF HOUSTONStorm Water Quality Management PlanPost Construction Certification – Annual Renewal

I, , a Professional Engineer duly licensed to practice in the State of Texas do hereby certify that the structural components recorded with Storm Water Quality Permit # appear to still be constructed and in place as originally designed and still perform as per the Storm Water Quality Management Plan of the property known as: “ ”.

Name:

Affiliation:

Address:

City: State: Zip:

Phone Number: Fax Number:

E-mail, (if available):

Engineer’s Seal and Signature:

Date:

Permit #:

Project Name:

Project Description:

Project Location: Once executed, please return the original certification, along with your original SWQ renewal application, to:


SWQMP POST CONSTRUCTION CERTIFICATION – ANNUAL RENEWAL Rev. 7/5/2011



Table 3: StormTrooper® Interceptor Monitoring / Maintenance Report

Year: Company Name: Address: City/State/Zip: Contact Phone: Contact Name: StormTrooper® Model GPM

Quarterly Record Keeping Maintenance Activity Mar June Sept Dec

Non-Structural Controls Manhole Debris Cleaned Interceptor Debris Cleaned Hose Off Inside Walls Debris Screens Cleaned Mowing of Stormtrooper

Structural Controls Oil Depth Solids Depth Pumped Out

Inspections Quarterly Annually

“X” identifies the months in which the activity will be performed (at a minimum). *Provided to residents at move-in and available at community locations.**Sediment removed from basin per chart on Table 2 (page 11) or at least one year from move-in of location

I certify that I supervised or performed StormTrooper® monitoring per local codes and manufacturer’s recommended monitoring and maintenance procedures on the dates listed above.

Signed: ____________________________ Owner or Owner Representative

Print Name: ____________________________

Date Submitted: ____________________________

Note: The property must submit for permit renewal yearly. For permit renewal, you will be notified by the regulatory agency to submit this inspection report along with an Annual Review of Monthly StormTrooper® Monitoring, Maintenance and Operation signed and stamped by a professional engineer licensed in the State of Texas.

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