Water Restrictions: San Mateo vs South San Francisco
How do water restrictions rules compare between San Mateo, CA and South San Francisco, CA?
San Mateo and South San Francisco have similar restriction levels.
San Mateo, CA
San Mateo County
San Mateo's water is provided by Cal Water (San Mateo District). Water conservation ordinances (SMMC Ch. 23.72) apply to landscaping. Year-round prohibitions include runoff, watering during/after rain, and midday irrigation.
View full San Mateo rules →South San Francisco, CA
San Mateo County
South San Francisco water is supplied by Cal Water (South San Francisco District) primarily from SFPUC's Hetch Hetchy system. BAWSCA and state drought regulations may limit outdoor watering. Water waste is prohibited year-round.
View full South San Francisco rules →Key Facts Comparison
| Fact | San Mateo | South San Francisco |
|---|---|---|
| Water Provider | Cal Water (San Mateo District) | Cal Water (South San Francisco District / BAWSCA) |
| No Watering Hours | 10 AM – 5 PM (summer) | - |
| Rain Rule | No watering within 48 hours of rain | No watering within 48 hours of rain |
| Runoff | Prohibited | Prohibited |
| Code | SMMC Ch. 23.72 | - |
| Watering Hours | - | Before 10 AM or after 5 PM (summer) |
Highlighted rows indicate differences between cities.
San Mateo FAQ
What are the lawn watering restrictions in San Mateo?
San Mateo's water is provided by Cal Water (San Mateo District). Water conservation ordinances (SMMC Ch. 23.72) apply to landscaping. Year-round prohibitions include runoff, watering during/after rain, and midday irrigation.
Are there drought watering rules in San Mateo?
Water Provider: Cal Water (San Mateo District). No Watering Hours: 10 AM – 5 PM (summer). Rain Rule: No watering within 48 hours of rain. Runoff: Prohibited.
South San Francisco FAQ
What are the lawn watering restrictions in South San Francisco?
South San Francisco water is supplied by Cal Water (South San Francisco District) primarily from SFPUC's Hetch Hetchy system. BAWSCA and state drought regulations may limit outdoor watering. Water waste is prohibited year-round.
Are there drought watering rules in South San Francisco?
Water Provider: Cal Water (South San Francisco District / BAWSCA). Watering Hours: Before 10 AM or after 5 PM (summer). Rain Rule: No watering within 48 hours of rain. Runoff: Prohibited.
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