Rhode Island NPDES regulations & environmental compliance analysis

Rhode Island NPDES: What you need to know

Governing Law and Regulations

Rhode Island Pollutant Discharge Elimination System (RIPDES): Rhode Island Rules and Regulations (RI Rule) 12.190.003 Rule 1 to Rule 60

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Dischargers required to apply: RI Rule 12.190.003 Rule 8 and Rule 10

Exempt activities: RI Rule 12.190.003 Rule 9

Permit conditions: RI Rule 12.190.003 Rule 14.01 to Rule 14.22

Operation and maintenance: RI Rule 12.190.006 Rule 1 to Rule 16

Modification: RI Rule 12.190.003 Rule 23

Concentrated Animal Feeding Operations (CAFOs): RI Rule 12.190.003 Rule 27

Regulatory Agencies

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

Rhode Island Coastal Resources Management Council (CRMC)

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 is authorized by EPA to administer the National Pollution Discharge Elimination System (NPDES) program, known as RIPDES in the state. This general permit authority includes industrial, municipal, agricultural, aquaculture, and stormwater discharges. See the state section STORMWATER DISCHARGE PERMITS and the state section AG WASTE for additional information.

Certain industrial discharges may also be covered under the state's Groundwater Protection Program. See the state section GROUNDWATER for additional information.

The state is fully authorized to administer the NPDES pretreatment program. In the event that a direct discharge is not appropriate, pretreatment standards are implemented as part of the discharge permit. Publicly owned treatment works (POTWs) develop pretreatment programs and standards, with guidance and ...


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