Data & Maps

For inquiries on Septic Systems or Freshwater Wetlands please follow the links below:

• OWTS/Septic Program: Search Onsite Wastewater / Septic System Permit Records  or email DEM.OWTS@dem.ri.gov
• Freshwater Wetlands Permitting Program: Search Wetland Permit Records or email  DEM.FWW@dem.ri.gov

Paper Maps

• Shellfish Grounds, Closures and Approved Areas
• Shellfish Tagging: Narragansett Bay
• Lake and Pond Bathymetry Maps for Fishermen
• Marine Sanitation Device: No Discharge
• Marine Sanitation Device: Pumpout Facilities
• RIPDES Phase II Stormwater Requirement Areas 
• RI Environmental Sensitivity Index Maps
• RI Watersheds with HUC12 Sub-Watersheds