Stormwater Management: Isleton vs McClellan Park
How do stormwater management rules compare between Isleton, CA and McClellan Park, CA?
Isleton has fewer restrictions than McClellan Park.
Isleton, CA
Sacramento County
Isleton operates under a state general NPDES MS4 permit for small communities. Illicit discharges to storm drains, sloughs, and the Sacramento River are prohibited. Construction sites over 1 acre require coverage under the Construction General Permit with a SWPPP.
View full Isleton rules →McClellan Park, 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 McClellan Park rules →Key Facts Comparison
| Fact | Isleton | McClellan Park |
|---|---|---|
| Permit Type | State MS4 Phase II | - |
| Discharge Threshold | 1 acre construction | - |
| Required Plan | SWPPP | - |
| Max Fine | 25,000 per day | - |
| Receiving Water | Sacramento River | - |
| Permit | - | NPDES R5-2016-0040 |
| County Code | - | Chapter 15.12 |
| SWPPP | - | 1+ acre disturbance |
| LID | - | 5,000+ sq ft impervious |
| Penalty | - | Up to $10,000/day |
Highlighted rows indicate differences between cities.
Isleton FAQ
Can I drain my pool into the street?
Not if it contains chlorine or cleaning chemicals. Dechlorinate first or discharge to landscaping to avoid an illicit discharge violation.
Do I need a SWPPP for a house remodel?
Only if the disturbed ground area exceeds 1 acre. Most residential projects fall well below that threshold.
McClellan Park 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.
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