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The Permit Listing files linked below contain information on facilities that hold individual NPDES and operation permits and are authorized to discharge wastewater to surface waters in Iowa. The files contain the name, address, discharge location, and other commonly requested information on each permitted discharger. The files do not contain information on any of the discharges authorized under the NPDES General Permits, including storm water General Permits #1, #2, and #3. The Excel file can be downloaded and manipulated to provide customized lists of information, and the pdf file can be downloaded in the event Excel is not installed on your computer.
Permit Listing Spreadsheet Permit Listing
The List of individual NPDES Permits in Iowa was last updated August 1, 2017.
If you wish to see information on the discharges authorized under the storm water general permits (General Permits #1, #2, and #3), please see the link below.
Individual draft and final (active) NPDES permits, such as city or industry wastewater permits, can be searched and viewed on the Wastewater Permit Information Exchange System (WWPIE). The permit delay reasons, or reasons why a particular permit has not been reissued yet, are also listed in WWPIE. Follow the instructions on the WWPIE home page or in the WWPIE User Manual to search and view permits and any reasons for delays in permit reissuance. Iowa operation permits are also available for viewing on WWPIE.
Please note, coverages under general Permits Nos. 1 - 7 are not included in WWPIE and facilities covered by these permits will not appear in the WWPIE search. Only final and draft individual, non-storm water NPDES and operation permits are included in WWPIE. Expired, closed, and revoked permits are not searchable or available in WWPIE.
The Permit Listing files linked above do not contain information on any of the discharges authorized under the NPDES General Permits, including storm water General Permits #1, #2, and #3. If you wish to see information on the discharges authorized under General Permits #1 for Storm Water Discharge Associated with Industrial Activity, #2 for Storm Water Discharge Associated with Industrial Activity for Construction Activities, and #3 for Storm Water Discharge Associated with Industrial Activity from Asphalt Plants, Concrete Batch Plants, Rock Crushing Plants and Construction Sand and Gravel Facilities, please go to the Online Storm Water Permit database.
There is currently no listing of the discharges authorized under General Permits #4, #5, #6, and #7 on the webpage. For more information on these general permits, please see the NPDES General Permits page.
Questions on the list of individual NPDES permits in Iowa or on WWPIE should be directed to Courtney Cswercko at Courtney.Cswercko@dnr.iowa.gov.