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🌍 Environmental Rules/Erosion Control

Erosion Control: Los Angeles vs Santa Monica

How do erosion control rules compare between Los Angeles, CA and Santa Monica, CA?

Los Angeles and Santa Monica have similar restriction levels.

Los Angeles, CA

Los Angeles County

Some Restrictions

An Erosion and Sediment Control Plan (ESCP) is required for construction projects in LA. Projects disturbing 1+ acres must file a state SWPPP with the Regional Water Quality Control Board. The LID ordinance requires BMPs to prevent erosion during and after construction. Hillside grading is subject to additional erosion controls under LAMC Chapter IX.

View full Los Angeles rules β†’

Santa Monica, CA

Los Angeles County

Some Restrictions

Santa Monica requires erosion control measures during construction. Excavated soil must be positioned to prevent sediment runoff. Emergency plastic covering allowed for unprotected areas. Detention ponds and infiltration pits required as needed.

View full Santa Monica rules β†’

Key Facts Comparison

FactLos AngelesSanta Monica
ESCPRequired for construction projects-
1+ AcreState SWPPP required-
HillsideAdditional grading controls-
BMP HandbookCity Development BMP standards apply-
Soil Management-Prevent runoff to streets/neighbors
Emergency Cover-Plastic covering permitted
BMPs-Detention ponds, infiltration pits
Drainage Controls-Required based on topography

Highlighted rows indicate differences between cities.

Los Angeles FAQ

Do I need erosion control for a small project?

Most jurisdictions require erosion control for any ground disturbance over 500 to 1,000 square feet. Check Los Angeles grading permit requirements.

Who inspects erosion controls?

Los Angeles building or public works department inspects during active construction. Federal EPA NPDES permits may also apply for sites over one acre.

Santa Monica FAQ

Do I need erosion control for a small project?

Most jurisdictions require erosion control for any ground disturbance over 500 to 1,000 square feet. Check Santa Monica grading permit requirements.

Who inspects erosion controls?

Santa Monica building or public works department inspects during active construction. Federal EPA NPDES permits may also apply for sites over one acre.

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