Stormwater Management: Long Beach vs Los Angeles
How do stormwater management rules compare between Long Beach, CA and Los Angeles, CA?
Long Beach and Los Angeles have similar restriction levels.
Long Beach, CA
Los Angeles County
Long Beach's stormwater program under LBMC Ch. 8.96 prohibits non-stormwater discharge. Low Impact Development (LID) is required for projects adding 500+ sq ft. NPDES compliance is mandatory for all construction and development.
View full Long Beach rules →Los Angeles, CA
Los Angeles County
LAMC 64.72 (LID Ordinance, Ord. 183833) requires new development to manage stormwater runoff on-site through infiltration, bioretention, or capture systems. Priority projects must meet MS4 permit standards using the Development BMP Handbook. Projects disturbing 1+ acres need a state SWPPP. Grading permits are conditioned on stormwater compliance and a recorded covenant.
View full Los Angeles rules →Key Facts Comparison
| Fact | Long Beach | Los Angeles |
|---|---|---|
| LID Threshold | 500 sq ft or more | - |
| Code | LBMC Ch. 8.96, Ch. 18.74 | - |
| Non-Stormwater | Discharge prohibited | - |
| Federal Law | Clean Water Act NPDES | - |
| Code Section | - | LAMC 64.72 (LID Ordinance) |
| Requirement | - | On-site stormwater management |
| Hierarchy | - | Infiltration > bioretention > treatment |
| 1+ Acre Sites | - | State SWPPP required |
| Covenant | - | Recorded BMP maintenance agreement |
Highlighted rows indicate differences between cities.
Long Beach FAQ
Do I need a stormwater plan for my project?
Generally required for new construction and major renovations that increase impervious surface area. Small residential projects may be exempt.
What is an illicit discharge?
Any non-stormwater substance entering the storm drain system, including paint, oil, chemicals, or sediment. Report violations to Long Beach public works.
Los Angeles FAQ
Do I need a stormwater plan for my project?
Generally required for new construction and major renovations that increase impervious surface area. Small residential projects may be exempt.
What is an illicit discharge?
Any non-stormwater substance entering the storm drain system, including paint, oil, chemicals, or sediment. Report violations to Los Angeles public works.
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