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In accordance with Federal Requirements in the Clean Water Act, the NPDES section developed a general permit for the application of pesticides to Waters of the United States (WOUS). Coverage under this permit is required for pesticide applications that result in residue discharges to WOUS. Applicable pesticide applications include those for control of mosquitoes and other aquatic nuisance insects, control of weeds, algae, bacteria, fungi and fish parasites, control of aquatic nuisance animals, and forest canopy pest control.
Current Pesticides General Permit
The Final Rule concerning the pesticides General Permit (PGP) was adopted at the Environmental Protection Commission (EPC) meeting on January 18, 2011. The Pesticide General Permit for Point Source Discharges to Waters of the United States from the Application of Pesticides become effective March 30, 2011.
Please see the links below for more information concerning the PGP and the waterbodies referenced in the permit.
Renewal of the Pesticides General Permit
The Pesticides General Permit (GP #7) expires on March 29, 2016. The NPDES section is currently working on reissuing the permit, and will present a Notice of Intended Action (NOIA) for the reissuance of the permit to the Environmental Protection Commission at their meeting on February 16, 2016. Please see the EPC webpage for a link to the agenda and the NOIA.
Comments or questions regarding the proposed rulemaking should be directed to Wendy Hieb, Iowa Department of Natural Resources, NPDES Section, 502 E. Ninth St., Des Moines, Iowa 50309-0034; via fax at 515-725-8202; or via email at email@example.com.
For more information on the PGP or the PGP forms, please contact:
For more information on EPA's NPDES permit for pesticides, please see EPA's Pesticides page.