A permit is now required for certain pesticide applications made to waters of the United States. The US Environmental Protection Agency (EPA) has issued a NPDES Pesticide General Permit (PGP), which covers point source discharges of pesticides in certain areas:
The remaining 44 states and the Virgin Islands are not covered by the EPA issued PGP. These states are authorized to develop and issue their own NPDES pesticide permits, which can be more, but not less, restrictive than the EPA's PGP. If you need information about how to obtain a permit in one of these 44 states or the Virgin Islands, you can find local contacts here.
The PGP covers only those pesticide applications where pesticides will be applied into "waters of the U.S." and which fall into certain usage categories, including:
Specific use patterns not covered by the PGP may not require a permit. For example, agricultural storm water runoff and irrigation return flow do not require a permit under federal rules.
In addition to following the label directions, the permit requires the applicator to:
This is the minimum list of requirements. Your state-issued permit might include additional steps. Find a contact person in your state for more information.
If you have questions about this, or any pesticide-related topic, please call NPIC at 1-800-858-7378 (8:00am - 12:00pm PST), or email at firstname.lastname@example.org.