Compare Regulations
Compare state-level permit requirements side-by-side (up to 4 states)
RI(3 more)
Rows with an amber indicator differ across selected states.
| Field | RI Rhode Island |
|---|---|
| NPDES Program | State-Delegated |
| Permitting Agency | Rhode Island Department of Environmental Management (RIDEM) |
| Permit Name | RIPDES General Permit for Stormwater Discharges from Construction Activity (RIR100000) |
| Construction Threshold | ≥ 1 acre of land disturbance, or < 1 acre if part of a larger common plan of development or sale that will ultimately disturb ≥ 1 acre |
| NOI Lead Time | A Notice of Intent (NOI) must be submitted to RIDEM and permit coverage confirmed before construction activities begin; RIDEM typically processes NOIs within 5–10 business days; permit becomes effective upon authorization acknowledgment |
| Application Method | Online via RIDEM's online permitting portal (RI RIPDES Online Reporting System); paper NOI submission is also accepted by mail to RIDEM's Office of Water Resources |
| Permit Fee | $500 for sites disturbing < 5 acres; $1,000 for sites disturbing ≥ 5 acres; fee is a one-time payment at NOI submission |
| SWPPP Required | Yes |
| PE Certification Required | No |
| SWPPP Template Available | Yes |
| Inspection Frequency | Every 7 days and within 24 hours of a storm event that results in a discharge from the site. During extended dry periods when there is no discharge potential, inspection frequency may be reduced at the operator's discretion with adequate justification documented in the SWPPP. |
| Inspector Qualification | No mandatory state-specific inspector certification under RIR100000; inspections must be performed by a 'qualified person' with appropriate training and knowledge of the SWPPP and BMP implementation. Rhode Island does not administer a state stormwater inspector certification program; CPESC (Certified Professional in Erosion and Sediment Control) or equivalent credentials are commonly used by practitioners. Inspection reports must document the inspector's name and qualifications. |
| Post-Construction Required | Yes |
| Turbidity Standard | No numeric NTU effluent limit in RIR100000; discharges must not cause or contribute to violations of Rhode Island water quality standards (RI Code R46-12-OWQ) |