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Certified Labs

Public Water Systems conducting water quality monitoring for constituents under the Safe Drinking Water Act State and State of Vermont Water Supply Rule, Chapter 21, are required to have all samples analyzed by a laboratory certified for drinking water analyses by the Vermont Department of Health. The certifying authority in Vermont for both in-state and out-of-state laboratories is the Vermont Department of Health - List of Certified LabsLaboratories are required to be certified for all contaminants in a group before they will receive an "X" for that group as listed on the Vermont Department of Health, Laboratories Certified for Drinking Water Analysis table. Click here to learn more about laboratory certification.

Please direct any questions regarding laboratory certification and this list to: 

Ali Boren

Laboratory Certification Officer 

Vermont Department of Health Laboratory

359 South Park Drive

Colchester, VT 05446

Phone 802-338-4709, 800-660-9997

Fax 802-338-4706

Several of the contaminants are grouped according to the test method used by the laboratory. 

List of Labs that are approved to Conduct Microscopic Particulate Analysis (MPA): This list includes only the labs in the state of Vermont. You may use an out-of state lab, if it has been approved by the DWGWPD.

Analytical Services

130 Allen Brook Lane

Williston, VT 05495

(802) 878-5138 or (800) 723-4432

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