Compare Regulations
Compare state baseline against local requirements in a single view
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Compare state baseline against local requirements in a single view
Rows with an amber indicator differ across selections.
| Field | State California SWRCB | Local City of Riverside City of Riverside Public Works Department / Community and Economic Development Department |
|---|---|---|
| Permit | ||
| Permit / Authorization | Construction General Permit (Order 2009-0009-DWQ, as amended) | Grading Permit with Water Quality Management Plan (WQMP) |
| Submit To | SWRCB | City of Riverside Public Works Department / Community and Economic Development Department |
| Lead Time | NOI must be filed and permit coverage obtained before grading/construction begins | Plan review 4–6 weeks; WQMP reviewed concurrently with grading/building permit |
| Application Method | Online via Stormwater Multiple Application and Report Tracking System (SMARTS) | Online or in-person via City of Riverside permit center; WQMP submitted as part of permit application |
| Fee | Annual fee based on acreage: < 5 acres = $900; 5–49 acres = $1,200; ≥ 50 acres = $2,200 | Grading permit fees per project scope; WQMP review fee included |
| Water Quality | ||
| Impervious Cover Limit | No statewide limit | No citywide cap; projects creating ≥ 5,000 sq ft of new impervious surface require a project-specific WQMP |
| On-Site Treatment Required | Not specified at state level | Yes |
| Detention Required | Not specified at state level | Yes — Retain the 85th-percentile 24-hour storm event using LID BMPs; infiltration preferred in areas with suitable soils; bioretention or proprietary treatment accepted elsewhere |
| Turbidity / Discharge Standard | Risk Level 3 sites: effluent must meet 10 NTU turbidity limit at discharge point; Risk Level 2: 250 NTU; Risk Level 1: narrative standard | Must comply with state CGP and Santa Ana Regional Water Board Basin Plan objectives |
| SWPPP | ||
| SWPPP / Local Plan Required | Yes | Yes — Project-specific Water Quality Management Plan (WQMP) for post-construction; SWPPP per state CGP for construction |
| PE Stamp Required | No | Yes |
| Inspections | ||
| Inspection Requirements | Risk Level 1: Visual inspections every 24 hours during active rain. Risk Level 2–3: Rain Event Action Plans required; inspections during and after qualifying storms | City conducts grading inspections and BMP installation verification. Post-construction BMPs require recorded maintenance agreements with annual self-inspection. |
| Inspector Qualification | Qualified SWPPP Practitioner (QSP) for Risk Level 2 and 3 sites; Qualified SWPPP Developer (QSD) must prepare the SWPPP | QSP/QSD per state CGP; no additional city certification |
| Design & Zones | ||
| Local Design Manual | N/A — state level | Riverside County WQMP Guidance / Santa Ana Region BMP Design Manual |
| Special Overlay Zones | N/A — see local jurisdictions | Santa Ana River Watershed, Hillside / Steep Slope Overlay |