NPDES Permits
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Wastewater Permit Information Exchange

(WWPIE)

Welcome to the Wastewater Public Information Exchange (WWPIE). This site contains public access to NPDES (National Pollutant Discharge Elimination System) permits for the State of Iowa.

You may search for individual NPDES permits, such as city or industry wastewater permits, by proceeding to the search page (link below). General Permits Nos. 1, 2, 3, 4, and 5 are not included in WWPIE and facilities covered by these permits will not appear in the search. Only final and draft NPDES permits are included in WWPIE. Expired, closed, or revoked permits are not searchable. If you wish to obtain information on any permit not included in WWPIE, please contact a permit writer listed in the “Contact NPDES Staff” link above.

Persons interested in NPDES permitting can register in order to save searches and comment on draft NPDES permits. NPDES permit holders or their designees can register in order to apply for permits online. Registered permit holders or appropriate representatives can review, submit, and pay for permit applications. If you wish to register or login, please follow the links to the right below.

Please see the Frequently Asked Questions page for answers to common questions. If you have questions that are not addressed on the FAQ page, please contact courtney.cswercko@dnr.iowa.gov.

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