CAState-AdministeredSWPPP Requirements in California
California's Construction General Permit (Order 2022-0057-DWQ) is one of the most rigorous in the nation. It uses a tiered Risk Level system (1–3) that dictates BMPs, inspection frequency, and numeric effluent limits. All NOIs, SWPPPs, inspection reports, and annual reports are submitted through the SMARTS online portal. A QSD must develop the SWPPP; a QSP must conduct inspections.
California SWPPP Key Facts
- ✓Risk Level system (RL1/2/3) based on sediment and receiving water risk
- ✓Risk Level 3 has numeric effluent limits (NELs) for turbidity and pH
- ✓All filings through SMARTS (Stormwater Multiple Application and Report Tracking System)
- ✓QSD required for SWPPP preparation; QSP required for inspections
- ✓Annual fee of $536+ per project
Administering Agency
- Agency
- State Water Resources Control Board (SWRCB)
- Phone
- 916-341-5537
- stormwater@waterboards.ca.gov
- Website
- SWRCB Stormwater Program
Permit Details
- Permit Name
- Construction General Permit
- Permit Number
- CAS000002
- Effective Date
- 2022-09-01
- Permit Document
- View Current Permit
SWPPP Thresholds & Triggers
- Acreage Threshold
- 1 acre or more; less than 1 acre if part of a larger common plan of development
Risk Level 1, 2, or 3 determined by sediment risk and receiving water risk factors. Risk Level 3 sites face numeric effluent limitations (NELs).
Inspection Requirements
- Inspection Frequency
- Risk Level 1: before/after rain events. Risk Level 2/3: before, during, and after rain events; qualified inspection every 24 hours during active rain for RL3.
- Rain Event Threshold
- 0.5 inches predicted or occurring
- Certified Inspector
- Required by state
- Accepted Certifications
- QSP (Qualified SWPPP Practitioner) — CASQA-approved, QSD (Qualified SWPPP Developer) — CASQA-approved, CPESC, PE licensed in CA
QSD must prepare SWPPP and perform annual comprehensive site inspection. QSP must conduct all routine inspections. Risk Level 3 requires 24-hour rain event monitoring.
Penalties & Enforcement
- Max Civil Penalty (Per Day)
- $10,000 per day per violation; up to $25,000/day for serious violations
- Criminal Penalties
- Up to $25,000/day and imprisonment for knowing or willful violations
Regional Water Quality Control Boards conduct enforcement; SMARTS non-compliance triggers automated NOVs.
Permit Fees
- NOI Filing Fee
- $536 minimum annual fee (Risk Level 1); higher for RL2/RL3
- Annual Fee
- $536–$2,000+ depending on risk level and acreage
- Other Fees
- SMARTS system registration required; no additional filing fee
How California Differs from Federal Requirements
- ⚠CA has its own NPDES program; EPA CGP does not apply
- ⚠Risk Level 3 NELs for turbidity (500 NTU daily max) and pH are more stringent than federal CGP
- ⚠QSD/QSP credential system is CA-specific
- ⚠SMARTS electronic reporting is mandatory — more robust than federal e-reporting
- ⚠Annual fee structure not present under EPA CGP
SWPPP Tips for California
- ➤Determine Risk Level early — RL3 designation substantially increases compliance costs
- ➤Register in SMARTS before NOI submission; allow lead time for processing
- ➤Annual Report deadline is September 1 each year; calendar this early
California SWPPP FAQs
What is the difference between a QSD and QSP?+
A QSD (Qualified SWPPP Developer) prepares the SWPPP and must have higher-level credentials. A QSP (Qualified SWPPP Practitioner) implements and inspects the SWPPP. Both require CASQA-approved training and may be the same person.
What triggers Risk Level 3 classification?+
High sediment risk (steep slopes, highly erodible soils) combined with high receiving water risk (impaired or sensitive water bodies) results in RL3, triggering numeric effluent limits.
Are linear projects (roads, pipelines) covered differently?+
Linear underground/overhead projects (LUPs) have their own permit (Order 2022-0057-DWQ LUP attachment); risk level is assessed per drainage area.
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