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Pesticide Control

Contact: Darrin McCullough, 517-242-8647

Provided below are links related to the National Pollutant Discharge Elimination System (NPDES) permit for the application of Pesticides.  The downloadable documents are available in PDF format.

EGLE's Water Resources Division (WRD), uses MiWaters, a based permitting and compliance database.  MiWaters enables Michigan to fulfill federal electronic reporting requirements and providing an online component for access to public information.  The focus of MiWaters is permitting and compliance, including NPDES Permits (including Pesticide permits).  Below is a list of some of the functions and features that MiWaters provides:

  • Permit applications will be submitted electronically.
  • Those with a MiWaters account will be able to manage permissions, deciding who can view, edit, and submit applications or submittals. 
  • MiWaters will provide near real-time notifications, to the permittee, of any violations determined by the system or by staff, providing permittees with an early "heads up" and opportunity to correct problems.

MiWaters training information is available as seminars, webinars, and videos.

General Information

Applicable Rules

Pesticide NPDES Permit Documents

Pesticide NPDES Permit Application Documents

  • The NPDES Permit Application for Pesticide Discharges form is included in MiWaters.

Guidance Documents

In addition, any water treatment additive (WTA) that is discharged to a surface water of the state from an NPDES permitted discharge requires prior review and approval by the WRD.  Pesticides used for controlling mosquito larvae in waters discharged under NPDES permits are considered WTAs.   Requests to perform pesticide treatment in wastewater treatment systems and catch basins covered by an NPDES permit must originate from the permittee and be made under the Water Treatment Additive approval process.

For applications of pesticides to catch basins and/or waters in a storm sewer system or wastewater treatment system that are covered by an NPDES permit, an approval under the Water Treatment Additive approval process is necessary.  This includes municipalities, industries and storm water sewer systems under the Phase I and Phase II storm water regulations.

Helpful Links