Stormwater Management: Carmichael vs Elk Grove
How do stormwater management rules compare between Carmichael, CA and Elk Grove, CA?
Carmichael and Elk Grove have similar restriction levels.
Carmichael, CA
Sacramento County
Sacramento County operates under a joint NPDES MS4 Permit (R5-2016-0040) with the City of Sacramento and other co-permittees. County Code Chapter 15.12 implements stormwater pollution prevention. New and redevelopment projects over 1 acre (or smaller in some cases) must comply with Post-Construction Stormwater Standards including LID and hydromodification controls.
View full Carmichael rules →Elk Grove, CA
Sacramento County
Elk Grove operates an MS4 stormwater system under an NPDES permit issued by the Central Valley Regional Water Quality Control Board. Municipal Code Title 15.28 prohibits non-stormwater discharges and requires post-construction treatment for new/redevelopment projects.
View full Elk Grove rules →Key Facts Comparison
| Fact | Carmichael | Elk Grove |
|---|---|---|
| Permit | NPDES R5-2016-0040 | Statewide MS4 Phase II NPDES |
| County Code | Chapter 15.12 | - |
| SWPPP | 1+ acre disturbance | - |
| LID | 5,000+ sq ft impervious | - |
| Penalty | Up to $10,000/day | - |
| Local code | - | EGMC 15.28 |
| LID required | - | New + redevelopment |
| Construction | - | SWPPP at ≥1 acre |
| Regulator | - | Central Valley RWQCB |
Highlighted rows indicate differences between cities.
Carmichael FAQ
Can I wash my car in my driveway?
Residential car washing is allowed but soapy water should be directed to landscaped areas, not the street or storm drain.
Do I need a SWPPP for my home remodel?
Only if construction disturbs 1 acre or more. Smaller sites still need erosion and sediment control Best Management Practices.
Elk Grove FAQ
Can I drain my pool to the street?
Not directly. Chlorinated pool water must be dechlorinated and, where allowed, drained to landscape; storm drains are prohibited.
Do I need a SWPPP for a home remodel?
Only if grading disturbs 1 acre or more. Most single-lot remodels are exempt but still must control sediment.
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