Found this:
http://www.mindfully.org/Pesticide/Mons ... cs7071.htm

12. ECOLOGICAL INFORMATION
ENVIRONMENTAL DATA: Do not apply directly to water. Do not contaminate water when disposing of equipment washwaters.

ECOTOXICOLOGICAL INFORMATION: Available ecotoxicity data for similar formulations suggest that this product would be slightly to moderately toxic to fish and practically nontoxic to avian species and honeybees. The results of degradation and bioconcentration studies with the active ingredient in this product indicate that it is rapidly adsorbed to soil, readily biodegrades in soil and water, and does not bioaccumulate.