Erosion Control: Los Angeles vs Pomona
How do erosion control rules compare between Los Angeles, CA and Pomona, CA?
Los Angeles and Pomona have similar restriction levels.
Los Angeles, CA
Los Angeles County
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 →Pomona, CA
Los Angeles County
Pomona requires erosion control plans for grading and construction projects. BMPs must be implemented during rainy season. Projects must comply with the LA County NPDES permit requirements.
View full Pomona rules →Key Facts Comparison
| Fact | Los Angeles | Pomona |
|---|---|---|
| ESCP | Required for construction projects | - |
| 1+ Acre | State SWPPP required | - |
| Hillside | Additional grading controls | - |
| BMP Handbook | City Development BMP standards apply | - |
| Plans Required | - | For grading and construction |
| Rainy Season | - | Oct 1 - Apr 15 enhanced BMPs |
| NPDES | - | LA County permit compliance |
| Code | - | Pomona grading regulations |
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.
Pomona 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 Pomona grading permit requirements.
Who inspects erosion controls?
Pomona building or public works department inspects during active construction. Federal EPA NPDES permits may also apply for sites over one acre.
Compare other topics
See how Los Angeles and Pomona compare on other ordinance categories.
Want to add a third city?
Use our full comparison tool to compare up to three cities.
Open Comparison Tool