Consult the Minnesota Department of Health’s Well Owner’s Handbook (PDF: 993 KB / 40 pages) pages 6-11 and the Private Well Contamination Risk factsheet for more information.
There is no state agency program or office that is required to conduct routine sampling or analysis of Minnesota’s private drinking water wells for any type of contamination, including pesticides. Public drinking water supplies, however, are required by state and federal agencies to routinely test for several pesticides under Minnesota’s implementation of the Safe Drinking Water Act.
Pesticide Section Manager
Gregg.Regimbal@state.mn.us ~ 651-201-6671
Pesticide & Fertilizer Management Division