Michigan Pretreatment Standards regulations & environmental compliance analysis

Michigan Pretreatment Standards: What you need to know

Governing Law and Regulations

Pretreatment requirements: Michigan Administrative Code (MAC) r. 323.2301 to 323.2317

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Biosolids: MAC r. 323.2401 to 323.2418

Land application permits: MAC r. 323.2403

Septage waste: Michigan Compiled Laws (MCL) 324.11701 to 324.11720

Regulatory Agencies

Michigan Department of Environmental Quality (DEQ) Water Resources Division Biosolids and Industrial Pretreatment Program

DEQ Water Resources Division Septage Program

U.S. Environmental Protection Agency (EPA) Region 5

See ADDRESSES & CONTACTS for addresses and telephone numbers.

See national section for basic information and federal regulations.

Comparison: State vs. Federal

Rules. The Michigan Department of Environmental Quality (DEQ) is fully authorized by the U.S. Environmental Protection Agency (EPA) to administer and enforce the provisions of the federal pretreatment program. Michigan's pretreatment requirements mirror the federal standards. The state has adopted federal standards for many industries. For additional information about the federal requirements, see the national section PRETREATMENT STANDARDS.

The state has also developed its own licensing and permitting program for the removal and disposal of septage waste and for the use of biosolids. Michigan defines "septage waste" as any human excrement, other domestic or restaurant waste, or other material or substance removed from a portable toilet, septic tank, seepage pit, cesspool, sewage lift station, or other enclosure, but does not include liquid industrial waste. "Biosolids" are defined as solid, semisolid, or liquid residues generated during primary, secondary, or advanced treatment of domestic sanitary sewage through one or more controlled processes that reduce ...

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