The files listed below contain information on facilities that hold NPDES permits, or those that are authorized to discharge wastewater to surface waters in Iowa. The permit listing file is an EXCEL spreadsheet that contains the name, address, phone number and other commonly requested information on each permitted discharger. This file can be downloaded and manipulated to provide customized lists of information.

Permit Listings: (*.xls file)
List of NPDES Permittees in Iowa (Last updated October 16, 2007)