WI · 72 COUNTIES
Certified labs and testing options for private well owners in Wisconsin.
Private well owners in Wisconsin are responsible for the safety of their own water. Based on groundwater data across the state — particularly pH and Chloride — we recommend the following testing approach.
Tap Score offers certified mail-in testing with results in 5–7 business days, tailored to regional contaminant patterns.
Order a Tap Score Well Water Test →State-certified labs in Wisconsin:
Well Water Testing - University of Wisconsin-Stevens Point → Well water testing in Wisconsin → Wisconsin Certified Water Testing Laboratory → Wisconsin State-Certified Water Testing Laboratory → Certifications - White Water Associates → Wisconsin Water Tests Kits - drinkingwaterlabs.com → Water Quality Testing by TG Analytical Laboratories → Clean Water Testing →Based on Wisconsin groundwater data, the most commonly detected contaminants in private wells are:
Water quality varies significantly by county. Find your county → for a targeted testing recommendation based on local data.
If testing reveals a contaminant of concern, these are the most effective treatment systems for pH — the most commonly detected issue across Wisconsin well water.