RI Pollutant Discharge Elimination System (RIPDES)
Public Notice of Proposed Permit Actions
There are currently no active notices.
RIPDES Annual Fee Payments Temporarily Unavailable
Online payment of RIPDES Annual Permit Fees for Construction General Permits (CGP) through the OWR Application Portal is temporarily unavailable due to system maintenance.
We expect this service to be restored in early July. This temporary interruption will not affect permit status or result in late fees. DEM is unable to accept annual fee payments by mail, physical check, or in person.
Stay Informed: Join our mailing list to receive an email notification as soon as annual fee payments become available again.
Questions? Email DEM.STWConstruction@dem.ri.gov and include the RIPDES Permit Number listed on your invoice. Due to a high volume of inquiries, response times may be longer than usual. We appreciate your patience and will respond as soon as possible.
This is the backbone of the state's water pollution control strategy, which includes developing and enforcing permit limitations for municipal and industrial wastewaters, storm water, and combined sewer overflows discharged directly to the waters of the state, as well as industrial wastewaters discharged to municipally-owned treatment facilities. The program currently oversees permit compliance for 23 major discharges, approximately 70 minor discharges, and approximately 250 storm water discharges. The Pretreatment Program provides ongoing oversight of fifteen approved local pretreatment programs.
In accordance with the EPA Federal and RI Pretreatment Regulations, the 15 RIDEM-approved Industrial Pretreatment Programs (see contact list here) regulate almost 200 Significant Industrial Users (SIUs) and thousands of Non-Significant Industrial Users. Over half of the state’s SIUs are subject to EPA Federal Categorical Pretreatment Standards.
For more information on DEM's Industrial Pretreatment Program, please contact Heidi Travers at 401-537-4186, or at heidi.travers@dem.ri.gov.
RIPDES Electronic Reporting Webpage RIPDES Permit Annual Fee Payment Service RIPDES Stormwater Construction General Permits (CGP) Annual Fee Payments
RIPDES Multi-Sector General Permit (MSGP) for Stormwater Discharge Associated with Industrial Activity
Non-Contact Cooling Water Permit
Guidance for Breweries
Key Resources
Related Links
- EPA Region 1 NPDES New England
- EPA National Pollutant Discharge Elimination System (NPDES) Permitting Program
- NPDES permit application forms
Additional Resources
- Regulations for the Rhode Island Pollutant Discharge Elimination System (RIPDES) 250-RICR- 150-10-1
- RIPDES Application Forms
- Rules and Regulations Governing the Establishment of Various Fees (250-RICR-30-00-1)
- Rules Related to Electronic Document Submissions (250-RICR-30-00-2)
- Listing of RIPDES Individual permits, General Permits, and Terminations