Erosion Control: San Jose vs Santa Clara
How do erosion control rules compare between San Jose, CA and Santa Clara, CA?
San Jose and Santa Clara have similar restriction levels.
San Jose, CA
Santa Clara County
San Jose requires erosion and sediment control plans for all construction and grading activities under SJMC Title 17 (Building Code) and Title 20 (Zoning). Projects disturbing one or more acres must file a Notice of Intent with the State Water Resources Control Board and prepare a Stormwater Pollution Prevention Plan (SWPPP). The City enforces erosion controls during the rainy season (October 15 through April 15) with heightened inspection and compliance requirements.
View full San Jose rules →Santa Clara, CA
Santa Clara County
Santa Clara requires erosion and sediment control plans for grading permits and during the wet season (Oct-Apr) per the Regional Stormwater Permit.
View full Santa Clara rules →Key Facts Comparison
| Fact | San Jose | Santa Clara |
|---|---|---|
| Code Section | SJMC Title 17 & Title 20 | - |
| Rainy Season | October 15 - April 15 heightened requirements | - |
| State Threshold | 1+ acre disturbance requires SWPPP | - |
| Stabilization | Disturbed areas must be stabilized within 14 days | - |
| BMPs Required | Silt fences, fiber rolls, stabilized entrances | - |
| Wet Season | - | October 1 to April 30 active BMPs required |
| 1-Acre Threshold | - | State CGP and SWPPP required |
| Standard BMPs | - | Silt fence, fiber rolls, covered stockpiles |
| Creek Setback | - | Enhanced BMPs near creek corridors |
| Contact | - | Public Works (408) 615-3000 |
Highlighted rows indicate differences between cities.
San Jose FAQ
Do I need an erosion control plan for a small landscaping project?
Projects that do not require a grading permit generally do not need a formal erosion control plan, but you must still prevent sediment from entering the storm drain system.
When are erosion control inspections conducted?
The City inspects construction sites before and during storm events, particularly during the October 15 to April 15 rainy season.
Santa Clara FAQ
When are erosion controls required?
Year-round for disturbed sites, with heightened inspections October through April during the rainy season.
Do I need a SWPPP for a home remodel?
Only if grading exceeds 1 acre; smaller residential projects use standard BMPs prescribed by the building permit.
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