Michigan Neutralization of Wastes: What you need to know

Governing Law and Regulations

Definition of elementary neutralization unit: Michigan Administrative Code (MAC) r. 299.9103

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Facility permit exemption: MAC r. 299.9503(1)(e)

Regulatory Agency

Michigan Department of Environmental Quality (DEQ) Office of Waste Management and Radiological Protection (OWMRP) Hazardous Waste Section

See ADDRESSES & CONTACTS for addresses and telephone numbers.

See national section for basic information and federal regulations.

Comparison: State vs. Federal

Rules. The federal Resource Conservation and Recovery Act (RCRA) rules and exemptions for neutralizing hazardous waste are effective in Michigan. Michigan has received RCRA authorization from the Environmental Protection Agency (EPA). The federal regulation for the chemical alteration of corrosive wastes known as elementary neutralization of wastes is a fairly common process mentioned in the federal regulations at 40 CFR 260.10. For further guidance, see the national section NEUTRALIZATION OF WASTES.

The neutralization procedure involves adjusting the pH level of the corrosive waste so that it has a neutral value of 7. The waste may still be hazardous, however, if it has other characteristic properties, such as ignitability or toxicity. See the national sections CHARACTERISTIC WASTE and HAZARDOUS WASTE TREATMENT for more information.

Examples of industries that might use neutralization of wastes are automobile industries that use acids for cleaning engine parts that create an acidic corrosive waste, and cleaning industries that use caustics in their operations that create an alkaline corrosive waste.

Administration and enforcement. DEQ's Hazardous Waste Section enforces the federal hazardous waste neutralization rules in Michigan.

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State Requirements

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Michigan Neutralization of Wastes Resources

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