Iowa Water - General regulations & environmental compliance analysis

Iowa Water - General: What you need to know

Governing Law and Regulations

Wastewater: Iowa Administrative Code (IAC) 567-64.1(455B) to 567-64.18(455B)

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Effluent limitations: IAC 567-62.1(455B) to 567-62.8(455B)

Thermal discharges: IAC 567-61.2(455B)

Pretreatment standards: IAC 567-62.1(455B) to 567-62.9(455B0

Agricultural waste: IAC 567-65.1(455B) to 567-65.22(455B)

Wastewater system operator: IAC 567-81.1(455B) to 567-81.17(455B)

Drinking water: IAC 567-40.1(455B) to 567-43.9(455B)

Groundwater: IAC 567-50.3(455B) to 567-55.6(455B)

Wetlands: Iowa Code (IA Code) 456B.1

Regulatory Agencies

Iowa Department of Natural Resources (DNR)

U.S. Army Corps of Engineers (Corps) Rock Island District Omaha District St. Paul District

U.S. Environmental Protection Agency (EPA) Region 7

See ADDRESSES & CONTACTS for addresses and telephone numbers.

See national section for basic information and federal regulations.

Comparison: State vs. Federal

Rules. Iowa has received National Pollutant Discharge Elimination System (NPDES) permitting authority for wastewater and stormwater discharges. Iowa controls discharge of water pollution under both water quality and effluent limitation standards.

Iowa has also been granted primacy from EPA to enforce drinking water regulations under the federal Safe Drinking Water Act (SDWA).

Administration and enforcement. Iowa's DNR is authorized to develop state programs for the prevention, control, and abatement of water pollution. DNR administers and enforces the state water pollution control permit programs, and the state drinking water regulations. The Corps administers wetlands dredge and fill permits in Iowa.

State Requirements


IAC 567-64.1(455B) to 567-64.18(455B)

Iowa has been authorized to administer the federal NDPES program in ...

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