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Iowa's natural resources plates include the state bird and flower, pheasant, eagle, buck and a Brook trout. Support conservation in Iowa by buying a natural resource plate for your vehicle.
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Experience Iowa's natural beauty and all the fun our state parks offer. Make your online reservation for state park cabins, camping sites, shelters and lodges.
Support conservation in Iowa by buying a natural resource plate for your vehicle.
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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.
Please note that while the Pesticides General Permit (PGP, General Permit #7, or GP7) provides coverage under the federal Clean Water Act, there are also separate state-based requirements for applying pesticides to public waters. These state requirements must also be followed, and the rules can be found at 571 Iowa Administrative Code Chapter 54.
Renewal of the Pesticides General Permit
The Iowa DNR is currently drafting a renewal of the Pesticides General Permit. Download a Redline/Strikeout Version of the draft changes to GP7 or a Clean Draft (current as of May 13, 2019). A Stakeholder Meeting was held on Tuesday, May 21, 2019, to seek input on the draft GP7 from individuals, stakeholder groups, and other interested citizens. Questions regarding the renewal can be directed to Melinda McCoy via email at firstname.lastname@example.org or by phone at 515-725-8402.
Pesticides General Permit
The first General Permit for Point Source Discharges to Waters of the United States from the Application of Pesticides (PGP, or GP7) become effective March 30, 2011. The PGP was reissued on May 18, 2016. The current general permit is effective until May 17, 2021.
Please note, Notices of Intent (NOIs) are not required for coverage under the reissued PGP.
Please see the links below for more information concerning the PGP and the water bodies referenced in the permit.
Discharge to Class C Waters (Drinking Water)
GP7 requires you to obtain prior authorization from the Iowa DNR for discharges near shallow wells and to Class C (drinking) waters. In order to request authorization, you will need to complete and submit a Class C Waters Form at least ninety days prior to the pesticide application. For questions about this form, contact the Iowa DNR Water Supply staff listed below.
For more information on the PGP, please contact:
For more information on EPA's General NPDES permit for pesticides, please see EPA's NPDES Pesticides Applications page.