Properly constructed and maintained BMPs are critical in achieving greater water quality for our community as a whole.
Post-construction stormwater management is typically accomplished through stormwater Best Management Practices (BMPs). These BMPs include constructed stormwater infiltration systems, bioretention systems, stormwater detention facilities, or various manufactured systems. More common names are rain gardens, bioretention, sand filters, detention basins and infiltration systems.
Bioretention systems use vegetation, such as trees, shrubs, and grasses, to remove pollutants from stormwater runoff. Sources of runoff are diverted into the bioretention systems directly through a stormwater drainage system.
Requirements of BMP owners under ordinance 12A-95
The requirements of this BMP ordinance are compulsory under our MS4 (Municipal Separate Storm Sewer) permit from the EPA. *National Pollutant Discharge Elimination System (NPDES) – Post-Construction Controls. U.S. Environmental Protection Agency, Washington, DC.
Under the stormwater Phase II rule, owners and operators of small municipal separate storm sewer system (MS4) facilities are responsible for implementing BMP inspection and maintenance programs and having penalties in place to deter infractions. All stormwater BMPs should be inspected on a regular basis for continued effectiveness and structural integrity.
- A yearly BMP inspection is required per City Ordinance 12A-95 “Maintenance and repair of stormwater facilities.”
- Per city ordinance the BMP owner is required to submit inspection form(s) and maintenance log to the City for each BMP facility by November 15th, annually.
- Stormwater control measures or BMPs must be properly and regularly maintained to function correctly. It is the responsibility of the owner(s) to maintain BMPs in good working order.
- During each inspection, the inspector should document whether the BMP is performing correctly, if the BMP has been damaged since the last inspection, and, if so, indicate what will be done to repair it.
- In the case of vegetative or other infiltration BMPs, inspection of stormwater management practices following a storm event should occur after the expected drawdown period for a given BMP. This allows the inspector to see whether detention and infiltration devices are draining correctly.
- An inspection form(s) has been developed for use by BMP inspector(s) (see forms below). The provided form(s) will help the inspector determine renovation or repair needs.
- A knowledgeable and qualified person or company may perform maintenance and inspection of the BMP facilities. It is recommended that a registered civil engineer or landscape architect perform the inspection.
- A landscaping or property maintenance company with BMP experience may have the expertise to perform the inspection and/or maintenance.
- It is important that routine maintenance and non-routine repair of stormwater BMPs be done according to a schedule or as soon as a problem is discovered. Because many BMPs are rendered ineffective for runoff control if not installed and maintained properly, it is essential that maintenance schedules are maintained and repairs made promptly.
- Please include a picture(s) of the BMP along with the inspection form and maintenance records and send them by e-mail or postage (see email and postal address below).
To Submit for inspection
Step 1: Download your BMP inspection form(s)
- Bioretention Inspection Formopens PDF file
- Catch Basin Insert Inspection Formopens PDF file
- Dry Detention Inspection Formopens PDF file
- Engineered Channel Inspection Formopens PDF file
- Extended Dry Detention Inspection Formopens PDF file
- Filter Strip Inspection Formopens PDF file
- Infiltration Basin Inspection Formopens PDF file
- Infiltration Trench Inspection Formopens PDF file
- Lakes / Ponds Inspection Formopens PDF file
- Native Vegetation Inspection Formopens PDF file
- Pavestone/Pervious Pavement Inspection Formopens PDF file
- Rain Garden Inspection Formopens PDF file
- Rock Channel Inspection Formopens PDF file
- Sand Filter Inspection Formopens PDF file
- Underground Detention Formopens PDF file
- Swale Inspection Form (All Types of Swales)opens PDF file
- Wet Detention Inspection Formopens PDF file
- Wetlands Inspection Formopens PDF file
- Hydrodynamic Separator Information (please read special instructions)opens PDF file
Step 2: Download the maintenance log sheet
Step 3: Take current picture(s) of BMP
Step 4: Send BMP inspection form(s), maintenance log sheet and pictures
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Preferred Method
Email: [email protected]create new email - Mailing address
Stormwater Utility — W.W.T.P
City of Columbia Missouri
ATTN: MS4 Technician
P.O. Box 6015
Columbia MO 65205-6015 - New for 2022: Electronic