Current NPDES Permits

List of NPDES Permittees in Iowa

The Permit Listing files linked below contain information on facilities that hold NPDES permits, or those that are authorized to discharge wastewater to surface waters in Iowa. The files contain the name, address, phone number and other commonly requested information on each permitted discharger.  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 pdf
The List of NPDES Permittees in Iowa was last updated May 2, 2012.

NPDES Permit Delay Reasons

The file listed below contains information on the issuance or reissuance of NPDES permits in Iowa. The Delay Reasons file is an EXCEL spreadsheet that contains the facility name, facility number, permit writer, permit issuance and expiration dates, permit status, permit application dates, and the reason the permit issuance is delayed. This file can be downloaded and manipulated to provide customized lists of information.  The pdf file can be downloaded in the event EXCEL is not installed on your computer.

Permits with Delay Reasons   Permits with Delay Reasons pdf
The List of NPDES Permits with Delay Reasons was last updated May 11, 2012.

Definitions for Terms on the Delay Reasons Spreadsheet
These definitions are also in an additional tab on the spreadsheet.

To contact the permit writer listed for a pending permit, please refer to the NPDES Staff Roster or the Current Permit Writers tab in the spreadsheet. If the permit writer listed has no contact information, that person is no longer an NPDES permit writer. Please contact another permit writer with questions.

Viewing Draft and Final NPDES Permits

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).  Follow the instructions on the WWPIE home page or in the WWPIE User Manual to search and view permits.  General Permits Nos. 1 - 7 are not included in WWPIE and facilities covered by these permits will not appear in the search. Only final and draft individual NPDES permits are included in WWPIE.  Expired, closed, or revoked permits are not searchable or available in WWPIE.

Questions on the Permit listing or Delay Reasons spreadsheets or on WWPIE should be directed to Courtney Cswercko at Courtney.Cswercko@dnr.iowa.gov.