Erosion Control: Bonsall vs El Cajon
How do erosion control rules compare between Bonsall, CA and El Cajon, CA?
El Cajon has fewer restrictions than Bonsall.
Bonsall, CA
San Diego County
San Diego County's Grading Ordinance requires erosion and sediment control measures for all grading and construction activities. Physical or vegetation BMPs must be deployed immediately upon completion of grading. The area cleared and left exposed at one time is limited.
View full Bonsall rules →El Cajon, CA
San Diego County
El Cajon requires erosion and sediment control plans for all construction and grading activities under ECMC Title 16 (Subdivisions) and the city's NPDES Municipal Permit compliance. Projects disturbing more than one acre require a state Construction General Permit with a Stormwater Pollution Prevention Plan.
View full El Cajon rules →Key Facts Comparison
| Fact | Bonsall | El Cajon |
|---|---|---|
| BMP Deployment | Immediately upon grading completion | - |
| Exposed Area | Limited to protectable amount | - |
| Grading Permit | Required for 200+ cubic yards or 8+ ft cuts | - |
| Slope Planting | Required to prevent erosion | - |
| Ordinance | Division 7 — Grading, Clearing, Watercourses | - |
| Threshold | - | All construction; SWPPP at 1+ acres |
| Permit Authority | - | SD Regional Water Quality Board |
| City Code | - | ECMC Titles 16 and 17 |
| Inspections | - | City verifies BMP compliance |
| Contact | - | Engineering Dept — 619-441-1656 |
Highlighted rows indicate differences between cities.
Bonsall FAQ
Do I need erosion control on my construction site in San Diego County?
Yes. All grading and construction activities require erosion and sediment control BMPs. These must be deployed immediately as each portion of grading is completed.
When is a grading permit required?
Grading permits are required when excavation or fill exceeds 200 cubic yards of material movement, or when cuts or fills exceed 8 feet in vertical height.
What are common erosion control BMPs?
Common measures include silt fences, fiber rolls, erosion control blankets, gravel bags, hydroseeding, and temporary detention basins. The specific BMPs depend on site conditions and project scope.
El Cajon FAQ
Do I need an erosion control plan in El Cajon?
Yes. All construction and grading activities require erosion control measures. Projects disturbing one or more acres require a full SWPPP filed with the State Water Resources Control Board.
What erosion control measures are required?
Standard BMPs include silt fencing, fiber rolls, gravel bag barriers, stabilized construction entrances, and soil stabilization. The specific plan is reviewed during permit issuance.
Who inspects erosion control compliance?
City of El Cajon inspectors verify erosion control BMP compliance during construction. The Engineering Department can be reached at 619-441-1656.
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