Quick Reference Guide: Water Use After Herbicide Treatment
This quick reference guide is intended to be general guidance regarding water use after herbicide application to a water body. It does not supersede any information, requirements, warnings or restrictions contained in the Environmental Protection Agency (EPA) approved label for any individual pesticide product. Always follow all of the requirements, warnings or restrictions contained on the EPA approved label for each individual pesticide product used. Please consult the EPA approved product label for specific water use restrictions for each pesticide product.
The Washington Department of Agriculture (WSDA) is the state agency responsible for interpreting pesticide product labels in Washington. Contact WSDA if you have pesticide product label interpretation questions at: 1-877-301-4555.
NOTE: Some of the restrictions reference a level of herbicide in the water. Contact the herbicide applicator to determine if they have taken, or will take, water samples to determine the level of herbicide in the water.
NOTE: Click on the to expand the information. Click on the to collapse.
Endothall: Dipotassium Salt
Endothall: Mono Salt
Sodium Carbonate Peroxyhydrate
= Restriction (Do not use water for this purpose)
= Advisory (Ecology suggests not using water for a time)
= No Restriction or Warning
PICOL: Look up pesticide product labels
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