The San Joaquin Valley Stormwater Quality Partnership (SJVSWQP) is a regional coalition of municipal agencies that pool resources, share expertise, and coordinate compliance with the EPA Phase I and Phase II Municipal Separate Storm Sewer System (MS4) permits.
Founded in 2003 by six agencies — Lathrop, Lodi, Manteca, Ripon, Tracy, and San Joaquin County — the partnership now includes more than fifteen members across the Central Valley. Together we keep our local creeks, sloughs, and rivers cleaner by tackling stormwater pollution at its source.
How we work
- Cost-share consultants and equipment so smaller agencies aren’t shouldering compliance alone.
- Hold monthly working meetings (open to members) to coordinate programs across jurisdictions.
- Run a single regional training program for inspectors, engineers, and field crews each year.
- Publish joint outreach campaigns (“Only Rain Down the Drain”) so residents see one consistent message.
Vision & Goals
To improve and protect the surface and groundwater quality of the San Joaquin Valley by promoting stormwater management practices, reducing pollutant discharges, and educating the public about the impacts of stormwater pollution.
Become a member
Public agencies, institutions, consultants, non-profits, and individuals committed to clean water in the Valley are all welcome. Apply for membership or get in touch with any questions.
Cost-share details and the current MOU are available to members in the member portal.