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Emergency Alert
Columbia County
341 E. Main St.
Dayton, WA 99328

Environmental Health Services
Water Testing

Water testing is available through Walla Walla Regional Water Testing Services in College Place. You are able to pick up your water testing kit at Columbia County Public Health, 270 E Main Street, Dayton, WA  99328.

Please contact us at Columbia County Public Health with your food service or Environmental Health questions at (509) 382-2181.

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