Water Testing Labs in Wisconsin
Certified drinking water laboratories in Wisconsin accredited for EPA-regulated contaminant testing, including bacteria, metals, nitrates, and PFAS.
Check your water report first — it’s free. Look up your public water system’s EPA compliance data before scheduling an independent test. Search by ZIP →
5 Certified Labs in Wisconsin
← All StatesCT Laboratories LLC
NELAP certifiedTNI accredited
Davy Laboratories
NELAP certifiedTNI accredited
Milwaukee Metropolitan Sewerage District
NELAP certifiedTNI accredited
Pace Analytical Services, LLC- Green Bay WI
NELAP certifiedTNI accredited
WISCONSIN STATE LABORATORY OF HYGIENE
NELAP certifiedTNI accredited
About Wisconsin Water Testing Certification
All laboratories listed have been certified by Wisconsin’s state drinking water program. State-certified labs demonstrate proficiency in testing drinking water for contaminants regulated under the Safe Drinking Water Act. For private well testing, contact a lab directly to discuss the appropriate test panel for your area.
For public water systems, check EPA compliance data free at ClearWater. View Wisconsin water systems →