Erosion Control: Fillmore vs Ojai
How do erosion control rules compare between Fillmore, CA and Ojai, CA?
Fillmore and Ojai have similar restriction levels.
Fillmore, CA
Ventura County
Fillmore requires erosion control measures for construction and grading projects, particularly important given the city's location in the Santa Clara River floodplain. Projects disturbing 1+ acre must comply with the NPDES Construction General Permit (SWPPP required).
View full Fillmore rules →Ojai, CA
Ventura County
Construction projects in unincorporated Ventura County must implement erosion control BMPs. Projects disturbing 1 acre or more require a SWPPP under the state Construction General Permit. Heightened requirements apply during the rainy season.
View full Ojai rules →Key Facts Comparison
| Fact | Fillmore | Ojai |
|---|---|---|
| SWPPP Required | Projects ≥ 1 acre | - |
| Rainy Season | October through April critical | Oct 1 - Apr 15 (heightened) |
| BMPs Required | All construction projects | All soil-disturbing projects |
| Dust Control | VCAPCD (805) 645-1400 | - |
| River Protection | Santa Clara River watershed | - |
| SWPPP | - | Required for ≥1 acre |
| Enforcement | - | Watershed Protection District |
| State Permit | - | Construction General Permit |
Highlighted rows indicate differences between cities.
Fillmore FAQ
Do I need erosion control for construction in Fillmore?
Yes. All construction projects must implement erosion control BMPs. Projects disturbing 1 acre or more must file for NPDES coverage and prepare a SWPPP. This is especially important near the Santa Clara River.
What is a SWPPP?
A Stormwater Pollution Prevention Plan details how a construction site will prevent erosion and sediment from leaving the property. It is required for projects disturbing 1 or more acres and must be prepared by a Qualified SWPPP Developer (QSD).
When is erosion control most important in Fillmore?
The October through April rainy season is the critical period. Exposed soil on construction sites is most vulnerable during rain events. All erosion control BMPs must be in place before the rainy season.
Ojai FAQ
What erosion controls are required?
Silt fences, fiber rolls, stabilized entrances, and erosion blankets. Projects over 1 acre need a SWPPP. Requirements increase during rainy season (Oct 1-Apr 15).
Do I need a grading permit?
Contact Building & Safety at (805) 654-2797. Grading permits include erosion control requirements.
What if sediment runs off my site?
Sediment discharge can result in fines from the county and the Regional Water Quality Control Board (up to $10,000/day). Implement BMPs before any grading.
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