Erosion Control: Hayward vs San Leandro
How do erosion control rules compare between Hayward, CA and San Leandro, CA?
San Leandro has fewer restrictions than Hayward.
Hayward, CA
Alameda County
Hayward construction sites require erosion and sediment controls during the wet season October through April. BMPs include silt fences, fiber rolls, and covered stockpiles per the Countywide stormwater permit.
View full Hayward rules →San Leandro, CA
Alameda County
San Leandro requires erosion and sediment control plans for grading over 50 cubic yards or 1 acre. BMPs per CA Stormwater Quality Association manual.
View full San Leandro rules →Key Facts Comparison
| Fact | Hayward | San Leandro |
|---|---|---|
| Wet season | Oct 1 - Apr 30 | Oct 1 - Apr 30 |
| One acre plus | State SWPPP required | - |
| Required BMPs | Silt fence, fiber roll | - |
| Stockpiles | Must be covered | - |
| Stop work | Possible for violations | - |
| Local threshold | - | 50 cu yd or 1 acre |
| State permit | - | 1 acre+ CGP |
| SWPPP | - | Required 1 acre+ |
| Code | - | CBC Appendix J |
Highlighted rows indicate differences between cities.
Hayward FAQ
Do small residential projects need erosion controls?
Yes, any soil-disturbing work during wet season needs basic BMPs like silt fence or wattles.
Who inspects my site?
Hayward Public Works and the state Regional Water Board both conduct stormwater compliance inspections.
San Leandro FAQ
Does landscape work need an erosion plan?
Only if grading exceeds 50 cubic yards. Most homeowner landscaping is below threshold.
When is wet season enforcement?
October 1 through April 30, when projects must have BMPs in place daily.
Compare other topics
See how Hayward and San Leandro compare on other ordinance categories.
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