The main driver for stormwater pollution prevention in San Mateo County is the Municipal Regional Permit (MRP), which addresses the water quality and flow-related impacts of stormwater runoff on receiving waters, including creeks, the Bay, and the ocean. Some of these requirements are implemented directly by municipalities while others are addressed by the San Mateo Countywide Water Pollution Prevention Program on behalf of all the municipalities. The MRP is a comprehensive permit that regulates activities related to construction sites, industrial sites, illegal discharges and illicit connections, new development, and municipal operations. The permit also requires a public education program, implementing targeted pollutant reduction strategies via green stormwater infrastructure and other stormwater control measures, and a monitoring program to help characterize local water quality conditions and to begin evaluating the overall effectiveness of the permit’s implementation.
You can find a link to the permit here or by clicking on the image above.