Rhode Island Effluent Limitations regulations & environmental compliance analysis

Rhode Island Effluent Limitations: What you need to know

Governing Law and Regulations

Effluent limitations: Rhode Island Rules and Regulations (RI Rule) 12.190.003-15.01 to 12.190.003-17.12

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Rhode Island Pollutant Discharge Elimination System (RIPDES) permit program: RI Rule 12.190.003-1 to 12.190.003-62

Water quality regulations: RI Rule 12.190.001-1 to 12.190.001-23

Surface water quality standards: RI Rule 12.190.001-8

Water use classifications: RI Rule 12.190.001-8(B)

Freshwater classifications: RI Rule 12.190.001-8(B)(1)

Seawater classifications: RI Rule 12.190.001-8(B)(2)

Partial uses: RI Rule 12.190.001-8(B)(3)

Discharge restrictions: RI Rule 12.190.001-9

Total maximum daily loads (TMDLs): RI Rule 12.190.001-10

Regulatory Agencies

Rhode Island Department of Environmental Management (DEM) Bureau of Environmental Protection Office of Water Resources

U.S. Environmental Protection Agency (EPA) Region 1

See ADDRESSES & CONTACTS for addresses and telephone numbers.

See national section for basic information and federal regulations.

Comparison: State vs. Federal

Rules. Rhode Island has adopted by reference the federal effluent limits. The state has also developed standards for surface water quality for both freshwater and seawater, wastewater discharge restrictions, including for new discharges, and a process for prioritizing the development of TMDLs for compliance with the federal Clean Water Act (CWA).

Administration and enforcement. DEM's Office of Water Resources administers the state's water quality program. EPA is responsible for approving DEM's TMDLs for impaired surface waters in the state.

State Requirements


RI Rule 12.190.001-8

Rhode Island has developed standards for surface waters in the state. A water quality standard defines ...

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