Best Management Practices (BMPs)

It is an effective management practice for reducing pollution within our stormwater systems. It is the implementation of both structural and engineered control devices to prevent pollution introduction; and is based off of six minimum control measures:

     1. Public Education
     2. Public Involvement
     3. Illicit Discharge Detection & Elimination
     4. Construction
     5. Post-construction
     6. Pollution Prevention/Good Housekeeping

Under the Clean Water Act (CWA) of 1972, it was made unlawful to discharge any pollutants from a point source into navigable waters. Navigable waters are water body's, such as rivers, canals, and lakes. Point source are pipes or man-made introduction systems, such as ditches and outfalls. Discharges are permitted by permit only under the National Pollutant Discharge Elimination System (NPDES), regulated by the United States Environmental Protection Agency (EPA) and the WA Department of Ecology (DOE). Every industrial, municipal, or other facility that discharges directly into a navigable surface water system must obtain a permit and implement BMPs in order to reduce pollution introduction.

Yakima County is currently compliant with the 2014-2019 Eastern Washington Phase II Municipal Stormwater Permit, through the maintaining and implementation of a stormwater management plan (SMP); which successfully meets our NPDES obligations.

For BMP examples or home implementation ideas click here.

The above site is also good for construction site operators seeking to install and maintain effective erosion and sediment controls. The Stormwater Management Manual for Eastern Washington (2004) and Yakima Regional Low Impact Development Manual are good references tools.

For a list of WA Department of Ecology Certified Erosion and Sediment Control Lead (CESCL) Training Programs click here.

Screened Drain