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Stormwater Pollution Prevention Manual

The Stormwater Pollution Prevention Manual (SPPM) provides best management practices (BMPs) for managing stormwater on commercial, multi-family, and residential properties. 

Download here:

2026 SPPM - Full Document (2.82 MB)

Previous version of the SPPM: 

2021 Stormwater Pollution Prevention Manual (1.92 MB)

Related Topics

Stormwater services

Resources and technical guidance to help manage stormwater.

Environmental monitoring

Water quality data, including fresh waters, groundwaters, and marine waters.

Watersheds, rivers, streams & lakes

Find water and land related resources and services by drainage area.