Water testing in Jefferson County, MO
Lowest listed local program price: Free, Jefferson County Health Department.
Water Sample Testing, Minerals and Heavy Metals (Free)
Free
- Minerals
- Heavy metals
Pick up a free minerals and heavy metals test kit from the Hillsboro or Arnold office and drop off the sample before the posted cutoff time.
Who can use it: Jefferson County, Missouri
- Hillsboro Office, 1515 Peach Tree Plaza Ct., Hillsboro · 636-797-3737
- Arnold Office, 1818 Lonedell Rd., Arnold · 636-797-3737
Checked October 1, 2026. Official page · Report a change
Water Sample Testing, Microbiology
Price not posted
- E. coli
- Bacteria
Call to schedule, pick up a test kit at the Hillsboro or Arnold office, then drop off the sample before the posted cutoff time.
Who can use it: Jefferson County, Missouri
- Hillsboro Office, 1515 Peach Tree Plaza Ct., Hillsboro · 636-797-3737
- Arnold Office, 1818 Lonedell Rd., Arnold · 636-797-3737
Checked October 1, 2026. Official page · Report a change