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 entities that have joined forces to develop a regional storm water program for the Monterey Peninsula and surrounding areas. The Monterey Regional Storm Water Permit Participants Group (Group) meets monthly to discuss urban runoff issues. The Monterey Regional Water Pollution Control Agency (MRWPCA) acts as the Group's administrative agent, holding meetings and working with the Group to assist in managing this regional program. This Group was originally formed in 2001 to begin working on development of a permit application for the EPA's National Pollutant Discharge Elimination System (NPDES) Phase II program, which requires cities under 100,000 in population to obtain permits and implement programs. The group meets on the 4th Wednesday of each month at 10:00 a.m. at the MRWPCA offices at 5 Harris Court, Building D, in Monterey (Ryan Ranch area). If you are interested in more information about the meetings please call (831) 372-3367.

The Monterey Regional Permit Group is now covered under the State’s General Storm Water Permit for Small Municipal Separate Storm Sewer Systems (MS4). The six permit components implemented through the permit program are:

  • Public Education and Outreach,
  • Public Participation and Involvement,
  • Illicit Discharge Detection and Elimination,
  • Construction Site Runoff Control,
  • Post Construction Runoff Control in New Development and Redevelopment, and,
  • Pollution Prevention and Good Housekeeping for Municipal Operations.

To learn more about the above components, see the MRSWMP (Permit Document) for the entirety of the regional permit implementation document.

Storm water pollution is one of the top five contributors to the degradation of lakes, rivers, creeks, and estuaries in the United States. One of the most effective tools for preventing storm water pollution is education, to answer questions such as what is storm water, how does it become polluted, and how can each of us protect our local waterways. As a part of the Monterey Regional Storm Water Management Program (MRSWMP), the City has developed educational materials for the community to learn and understand the nature of storm water and its pollution. Specific practices for preventing storm water pollution can be found at

The City's "water quality ethic" has led to the development of a Storm Water Management Program. This program is continually changing and expanding due to greater understanding of natural systems,innovative approaches to storm water management, and new regulations from the State and Federal EPA. Through implementation of this program, the City demonstrates its commitment to protecting the health of our local waterways, including the Monterey Bay National Marine Sanctuary.

Each year an Annual Report of the Storm Water Program is developed and submitted to the Central Coast Regional Water Quality Control Board and is available to the public for review and comment. The Annual Report is available online and at the Engineering Office. Public input and stakeholder participation is a key component of this program. Please contact the Engineering Office to see how you may become involved!

Report Sanitary Sewer Spills and Illegal Dumping