Stormwater Management: Long Beach vs Pasadena
How do stormwater management rules compare between Long Beach, CA and Pasadena, CA?
Long Beach and Pasadena 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 →Pasadena, CA
Los Angeles County
Pasadena's Stormwater Management and Discharge Control (PMC Chapter 8.70) prohibits illicit discharge to the municipal stormwater system. LID plans required for new development must retain the 85th percentile storm on-site. NPDES permit compliance mandatory.
View full Pasadena rules →Key Facts Comparison
| Fact | Long Beach | Pasadena |
|---|---|---|
| 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 | - | PMC Chapter 8.70 |
| LID | - | Retain 85th percentile storm |
| NPDES | - | LA County MS4 permit |
| Design Volume | - | 1.0-1.2 inches per hour |
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.
Pasadena 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 Pasadena public works.
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