San Mateo vs South San Francisco
How do stormwater management rules compare between San Mateo, CA and South San Francisco, CA?
San Mateo, CA
San Mateo County
San Mateo enforces stormwater regulations under its NPDES Municipal Permit (San Mateo Countywide Water Pollution Prevention Program). Development creating or replacing 5,000+ sq ft of impervious surface must implement permanent stormwater BMPs. Illegal discharge to the storm drain system is prohibited.
View full San Mateo rules →South San Francisco, CA
San Mateo County
No data available yet for South San Francisco.
Key Facts Comparison
| Fact | San Mateo | South San Francisco |
|---|---|---|
| Program | SM County Water Pollution Prevention | - |
| BMP Threshold | 5,000+ sq ft impervious surface | - |
| Discharge | Non-stormwater prohibited | - |
| Destination | San Francisco Bay | - |
| Public Works | 650-522-7300 | - |
Highlighted rows indicate differences between cities.
San Mateo FAQ
What stormwater rules apply to my project?
Projects creating or replacing 5,000+ square feet of impervious surface must implement permanent stormwater BMPs reviewed during the permit process.
Can I wash my car in the driveway?
Car wash runoff containing soap and chemicals should not enter the storm drain. Use a commercial car wash or wash over permeable surfaces.
Where does San Mateo's stormwater go?
The city's storm drain system discharges to San Francisco Bay without treatment, which is why pollution prevention is critical.
South San Francisco FAQ
No FAQs available.
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