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Stormwater Management Program

Avondale’s National Pollution Discharge Elimination System (NPDES) Phase II MS4 Permit requires a Stormwater Management Plan (SWMP) with six Minimum Control Measures (MCMs) that the City must implement in order to comply with state and federal regulations. The actions used to complete the MCMs are called Best Management Practices (BMPs).

Below are the various MCMs and BMPs that comprise Avondale's Stormwater Management Plan. Click on an MCM to learn more about what we are doing in that area.

MCM 1 - Public Education & Outreach

The City uses outreach events and the media to educate residents on what stormwater management is, why it is important, and how to help keep pollutants from entering the Municipal Separate Storm Sewer System (MS4). Education and outreach are vital because everyone has a part to play in a healthy stormwater system. See the Public Outreach link to the left to learn more.

BMP 1 - Distribute stormwater educational materials
BMP 2 - Disseminate stormwater educational messages in local news media
BMP 3 - Disseminate stormwater messages with links on the City’s website

MCM 2 - Public Involvement & Participation

This MCM provides opportunities for the City and residents to work together to identify issues and solutions for stormwater management. There are ample opportunities to participate throughout the year, so get on board! Make sure to keep an eye on the calendar on the Avondale Calendar page to stay informed.

BMP 1 - Continue complying with state and local public notice requirements
BMP 2 - Implement a volunteer cleanup program
BMP 3 - Hold a public hearing on the Storm Water Management Plan and Notice of Intent
BMP 4 - Update the City Council on the Storm Water Management Plan annually

MCM 3 - Illicit Discharge Detection & Elimination

Detecting and eliminating illegal discharges is one of the most important aspects of the SWMP because these measures are what ultimately keep our groundwater free from stormwater pollutants. And while catching violators is key, education about what can and cannot go into the MS4 is just as important. You can learn more about illicit discharges and how to report them at the Illicit Discharge link on the left.

BMP 1 - Develop an illicit discharge ordinance
BMP 2 - Create an outfall inspection program
BMP 3 - Develop a storm sewer map that shows all outfalls
BMP 4 - Develop and distribute educational materials about illicit discharges
BMP 5 - Develop and implement complaint receipt procedures

MCM 4 - Construction Site Runoff Controls

Construction sites often have little vegetation to anchor soil and may house large concentrations of stormwater pollutants. Likewise, these sites may not have a full stormwater management system in place, so special measures are necessary. These BMPs give guidance for minimizing construction stormwater runoff to keep sediment and other pollution out of our MS4. Learn more about construction controls at the Construction and Erosion Control link.

BMP 1 - Develop and adopt an erosion and sediment control ordinance
BMP 2 - Develop and implement policies and procedures for plan review
BMP 3 - Develop and distribute technical guidance materials
BMP 4 - Develop and implement a construction site inspection and enforcement program
BMP 5 - Develop and implement compliant receipt procedures
BMP 6 - Provide the development community with educational material

MCM 5 – Post-construction Runoff Controls

It is important to ensure that stormwater flows correctly after new developments are finished. This MCM helps the City and developers make sure that stormwater control measures in new construction areas contribute to a healthy stormwater management system after building is complete.

BMP 1 - Develop and adopt a post-construction stormwater runoff ordinance
BMP 2 - Develop and adopt technical guidance materials
BMP 3 - Develop policies and procedures for plan review
BMP 4 - Develop an inspection and enforcement program
BMP 5 - Provide the development community with educational materials

MCM 6 – Pollution Prevention & Good Housekeeping

Avondale understands that a strong SWMP begins right here with our City operations. We are committed to ensuring our own actions foster excellent stormwater management and pollution prevention, and focus on education and smart practices to accomplish this Control Measure.

BMP 1 - Develop and implement a municipal pollution prevention program
BMP 2 - Train City employees about pollution prevention
BMP 3 - Evaluate street sweeping practices