Stormwater Management: Fair Oaks vs Folsom
How do stormwater management rules compare between Fair Oaks, CA and Folsom, CA?
Fair Oaks and Folsom have similar restriction levels.
Fair Oaks, 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 Fair Oaks rules →Folsom, CA
Sacramento County
Folsom operates a Municipal Separate Storm Sewer System (MS4) under NPDES permit CAS082597 jointly with Sacramento County. Discharging pollutants — soap, paint, oil, sediment — to storm drains is prohibited. New development must meet Low Impact Development standards.
View full Folsom rules →Key Facts Comparison
| Fact | Fair Oaks | Folsom |
|---|---|---|
| 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 | - |
| MS4 Permit | - | NPDES CAS082597 |
| Co-permittees | - | Folsom + Sac County |
| LID threshold | - | 5,000 sq ft impervious |
| Construction | - | SWPPP if ≥1 acre |
| Receiving waters | - | American River/Folsom Lake |
Highlighted rows indicate differences between cities.
Fair Oaks 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.
Folsom FAQ
Can I wash my car in my driveway in Folsom?
Occasional residential car washing is tolerated. Commercial or fleet washing that discharges to the storm drain is prohibited. Best practice: wash on grass or at a commercial car wash where water goes to sanitary sewer.
Who enforces this in Folsom?
Folsom code enforcement at (916) 355-7285 handles most complaints.
Compare other topics
See how Fair Oaks and Folsom compare on other ordinance categories.
Want to add a third city?
Use our full comparison tool to compare up to three cities.
Open Comparison Tool