County pages
We're adding counties one at a time. Each page covers who to contact locally, what the state requires, and where to find a certified lab, with a source for every fact.
States
Start with your state page for the home-sale rules, labs and well records, or see the homebuyer's guide.
- FloridaFlorida has no well test requirement at sale. County health department testing, what to test, free sampling near contamination, NELAP-certified labs, well completion reports by water management district, and contacts, with sources.
- GeorgiaGeorgia's well water testing advice, UGA's home loan closing test, uranium and radon in the Piedmont, arsenic in the Coastal Plain, setback distances, certified labs and contacts, with sources.
- IndianaIndiana's seller disclosure for wells, glacial arsenic data, Indiana Department of Health lab fees, certified labs, the IDNR water well record database, and county contacts, with sources.
- MichiganMichigan private well facts in one place, covering new-well testing rules, the MDHHS testing schedule, arsenic in southeast Michigan, testing options, and our Michigan county pages.
- MinnesotaMinnesota's well disclosure law for home sales, MDH testing advice, arsenic in new wells, free nitrate clinics, accredited lab search, the Minnesota Well Index, and county contacts, with sources.
- New HampshireNew Hampshire private well facts in one place, covering arsenic, radon and PFAS, NHDES testing guidance, town testing rules, accredited labs, and our New Hampshire county pages.
- New YorkNew York's property disclosure questions on wells, county and town testing laws at sale, NYSDOH testing advice, ELAP lab search, free PFAS testing, DEC well records, and contacts, with sources.
- OhioOhio's home-sale disclosure, county point-of-sale well inspections such as Summit County's, arsenic estimates, what to test, Ohio EPA certified labs, the ODNR well log search, and contacts, with sources.
- PennsylvaniaPennsylvania private well facts in one place. There are no statewide testing rules, so this covers DEP's testing advice, Penn State county data, where to buy bacteria test kits, and our Pennsylvania county pages.
- VirginiaWhat Virginia requires when a home with a well is sold, what VDH says homebuyers should test for, the Virginia Household Water Quality Program clinics, certified lab search, well records and contacts, with sources.
- WisconsinWhat Wisconsin requires (and doesn't) when a home with a well is sold, the DNR inspection form, statewide test data, certified lab lists, well records, the Well Compensation Grant, and contacts, with sources.
County pages only (state overview coming): Maine, New Jersey, North Carolina.
All county pages
Indiana
- Well water testing in Elkhart County, INElkhart County's well permit and testing rules, naturally occurring arsenic, Indiana state lab fees, certified labs, well records and county contacts for homeowners and buyers, with sources.
Maine
- Well water testing in Cumberland County, MEArsenic, uranium and radon testing for Cumberland County private wells, Maine CDC's free help line and testing schedule, the state lab's test kits, and accredited labs, with sources.
- Well water testing in Penobscot County, MEArsenic, uranium and radon testing for Penobscot County private wells, Maine CDC's free help line and testing schedule, the state lab's test kits, and accredited labs, with sources.
Michigan
- Well water testing in Genesee County, MIGenesee County Health Department well bacteria testing, other labs the county lists, Michigan's recommended testing schedule, and arsenic in eastern Michigan, with sources.
- Well water testing in Livingston County, MILivingston County Health Department well testing rules, Michigan's recommended testing schedule, arsenic in southeast Michigan, certified labs the county lists, and how to disinfect a well, with sources.
- Well water testing in Oakland County, MIWhere Oakland County well owners can get water tested, Michigan's recommended testing schedule, arsenic in southeast Michigan, and what EGLE recommends if arsenic is high, with sources.
Minnesota
- Well water testing in Anoka County, MNAnoka County's $17 well water tests, arsenic results for 3,084 new wells, Minnesota's well disclosure rules for home buyers, accredited labs, well records and contacts, with sources.
New Hampshire
- Well water testing in Hillsborough County, NHArsenic in Hillsborough County private wells, New Hampshire's testing guidance, accredited labs near Manchester and Nashua, town testing rules, and who to contact, with sources.
- Well water testing in Rockingham County, NHArsenic, radon and other results from Rockingham County private wells, New Hampshire's testing guidance, accredited labs near the Seacoast, and who to contact, with sources.
New Jersey
- Well water testing in Hunterdon County, NJHunterdon County Health Department contact, New Jersey Private Well Testing Act requirements (including uranium for Hunterdon), certified-lab lookup, and cost estimates, with sources.
New York
- Well water testing in Dutchess County, NYDutchess County's countywide well testing results, town laws requiring well tests at sale, free PFAS testing, ELAP labs, well records and county contacts, with sources.
North Carolina
- Well water testing in Union County, NCArsenic in Union County wells (Carolina Slate Belt), Union County Environmental Health's well testing and permits, the county's recommended testing schedule, and state data, with sources.
Ohio
- Well water testing in Summit County, OHSummit County's point-of-sale well inspection rule for home sales, what's tested, exemptions, county water sampling, Ohio EPA certified labs, ODNR well logs and contacts, with sources.
Pennsylvania
- Well water testing in Berks County, PAWhat Penn State lab data show for Berks County private wells, Pennsylvania's testing advice, where to buy bacteria test kits and find accredited labs, with sources.
- Well water testing in Chester County, PAWhat Penn State lab data show for Chester County private wells, Pennsylvania's testing advice, where to buy bacteria test kits and find accredited labs, with sources.
- Well water testing in Lancaster County, PAWhat Penn State lab data show for Lancaster County private wells, Pennsylvania's testing advice, where to buy bacteria test kits and find accredited labs, with sources.
- Well water testing in York County, PAWhat Penn State lab data show for York County private wells, Pennsylvania's testing advice, where to buy bacteria test kits and find accredited labs, with sources.
Wisconsin
- Well water testing in Waukesha County, WIWaukesha County's state-certified well water lab, well and septic evaluations for home sales, what USGS and UW-Stevens Point data show for nitrate, arsenic and herbicides, DNR rules for buyers, and contacts, with sources.
Don't see your county yet? Start with How to read your well water test results, and ask your county or local health department which tests they recommend where you live.