Rhode Island Neutralization of Wastes regulations & environmental compliance analysis

Rhode Island Neutralization of Wastes: What you need to know

Governing Law and Regulations

Definition of treatment: Rhode Island General Laws (RI Gen. Laws) 23-19.1-4 and Rhode Island Rules and Regulations (RI Rule) 12.030.003-3.0

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Permit exemption: RI Rule 12.030.003-7.0B.8

Regulatory Agency

Rhode Island Department of Environmental Management (DEM) Bureau of Environmental Protection Office of Compliance and Inspection Waste Management Program

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 the federal rules for the chemical alteration of corrosive wastes, known as the elementary neutralization of hazardous wastes, with additional state permit exemption requirements for elementary neutralization units (ENUs) and wastewater treatment units (WWTUs). See the state section TSDF PERMITS and the national section NEUTRALIZATION OF WASTES for additional information.

Administration and enforcement. DEM's Office of Compliance and Inspection administers and enforces the hazardous waste neutralization rules in Rhode Island.

State Requirements


Neutralization is a chemical treatment used on corrosive hazardous waste to reduce the level of a waste's corrosivity. The neutralization procedure involves adjusting the pH level of the corrosive waste so that it has a neutral value of 7. Elementary neutralization refers to pH adjustment only, and neutralized waste may require further treatment before land disposal. The waste may still be hazardous if it has other characteristic properties, such as ignitability or toxicity. See the state sections CHARACTERISTIC WASTE and HAZARDOUS WASTE TREATMENT for more ...

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Rhode Island Neutralization of Wastes Resources

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