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Test: Coliform Bacteria

Jennings-Thompson Laboratories, Inc.

Legacy Environmental Laboratory, LLC

American Water Testing Company

Olympic Analytical LLC dba Vanguard Laboratory

Pacific County DCD WQ Laboratory

Seattle-King County Department of Public Health Lab

Thurston County Health Department Laboratory

Walla Walla Regional Water Testing Services

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Verified license records, state-certified labs and county well data for private well owners. Built from public state records, checked and dated.

9,178Licensed contractors
995Certified labs
1,977Counties
24States

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Well Water Insider lists licensed contractors and certified labs from public state records. We are not a contractor or a lab and do not endorse any listing. Some links are affiliate links; we may earn a commission at no cost to you.

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