Wastewater Permitting

Wastewater Permitting

Wastewater Permitting - NPDES

Information about the National Pollutant Discharge Elimination System (NPDES) programs and requirements for obtaining a wastewater discharge permit.

Wastewater Permitting

General Permits

Information and details about the nine General NPDES Permits that the Iowa DNR issues and corresponding databases.

Wastewater Permitting

GP6 - Water Wells

General information about Wastewater General Permit #6 (GP6), care of the NPDES Section of Iowa DNR.

Wastewater Permitting

Treatment Agreements

Information on treatment agreements under the NPDES Program for significant industrial users.

Wastewater Permitting

Clean Water State Revolving Fund

(CWSRF) offers loan funding to assist in financing design & construction of publicly-owned wastewater treatment facilities.

Wastewater Permitting

Pretreatment

Information about local NPDES pretreatment programs and agreements in Iowa, care of the Iowa DNR.

Wastewater Permitting
Water Quality

Nutrient Reduction Strategy

The Iowa Nutrient Reduction Strategy is a science & technology-based approach to assess and reduce nutrients delivered to Iowa waterways and the Gulf of Mexico

Wastewater Permitting

Rural Community Sewers

The Iowa DNR works with rural communities to find funding sources and affordable treatment options.

Wastewater Permitting

Bacteria Sampling

General requirements and guidance on wastewater bacteria sampling in Iowa, care of the NPDES section of the Iowa DNR.

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