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NPDES Databases

This page contains information about the online databases used by the NPDES Section of the Iowa DNR. Please expand the sections below for more information on each database.

NPDES Databases - Individual and General Permits

information on other individual or general permits (nos. 4, 6, and 7)

if you wish to obtain information on an individual permit not included in wwpie (a pending permit for a new discharger or a closed, revoked, or expired permit), please contact a permit writer listed on the npdes staff roster.

if you wish to see a list of the active individual permits in iowa, please refer to the current npdes permits webpage.

there is currently no listing of the discharges authorized under general permits #4, #6, and #7 on the iowa dnr website. for more information on these general permits, please see the npdes general permits webpage.