The Cities of Monterey, Carmel-by-the-Sea, Del Rey Oaks, Sand City, Seaside, Marina, Pacific Grove and the County of Monterey are eight local agencies that have joined forces to develop and implement a regional stormwater program for the Monterey Peninsula and surrounding areas. This group meets monthly to discuss urban runoff issues and implement components of the Monterey Regional Storm Water Management Program (MRSWMP).

The MRSWMP (document outlined below) is a regulatory document that contains the requirements each entity must implement and enforce locally to protect the water quality of waterways like the Monterey Bay National Marine Sanctuary. The MRSWMP components are mandated by the State and the Environmental Protection Agency (EPA) National Pollutant Discharge Elimination System (NPDES) for Phase II communities (those municipalities with a population less than 100,000) per the federal Clean Water Act.