How much does well water testing cost?
A bacteria test from a county health department or state lab costs $12 to $250 (typically $40) across the 60 counties below. Every figure is from the provider's own fee list. A trip fee, where staff take the sample, is shown next to it.
By county, cheapest first
State and university labs
Michigan
Michigan EGLE Drinking Water Laboratory (state lab)
Total coliform and E. coli: $23
Pennsylvania
Penn State Agricultural Analytical Services Laboratory (Drinking Water Testing)
Standard (WD01): $60 · Agriculture / Septic (WD04): $70 · Bacteria (total coliform and E. coli): $40
Wisconsin
UW-Stevens Point Water and Environmental Analysis Lab (WEAL)
Homeowner Package: $78 · Homeowner Package with Bacteria Count: $91 · Coliform/E. coli (present or absent): $30 · Coliform/E. coli (count): $41
Wisconsin
Wisconsin State Laboratory of Hygiene (WSLH), Environmental Health Division
Bacteria (total coliform / E. coli), present or absent: $35
Quick answers
How much does well water testing cost?
At the 60 counties we list, the main provider's bacteria test costs $12 to $250, typically $40. Some counties add a trip fee when staff take the sample.
How much does a bacteria and nitrate test cost?
Where a provider sells bacteria and nitrate together, it costs $45 to $200, typically $78.