Elk Grove vs Isleton
How do stormwater management rules compare between Elk Grove, CA and Isleton, CA?
Isleton has fewer restrictions than Elk Grove.
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 →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 →Key Facts Comparison
| Fact | Elk Grove | Isleton |
|---|---|---|
| Permit | Statewide MS4 Phase II NPDES | - |
| Local code | EGMC 15.28 | - |
| LID required | New + redevelopment | - |
| Construction | SWPPP at ≥1 acre | - |
| Regulator | Central Valley RWQCB | - |
| Permit Type | - | State MS4 Phase II |
| Discharge Threshold | - | 1 acre construction |
| Required Plan | - | SWPPP |
| Max Fine | - | 25,000 per day |
| Receiving Water | - | Sacramento River |
Highlighted rows indicate differences between cities.
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.
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.
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