Private Well Water Testing in Alabama
County-by-county USGS area-risk estimates for private wells across Alabama — arsenic exceedance probability and private-well population — plus how to test your own well at a Alabama-certified laboratory.
Alabama private-well risk summary
Counties covered
67
Alabama counties with modeled risk data.
People on private wells
area estimate535,805
estimated across covered Alabama counties.
Average arsenic risk
area estimate2%
average modeled chance a well exceeds 10 µg/L arsenic across covered counties.
Alabama counties
- Mobile County3% arsenic exceedance (area estimate)43,196 people on private wells
- Baldwin County2% arsenic exceedance (area estimate)30,431 people on private wells
- Talladega County1% arsenic exceedance (area estimate)21,600 people on private wells
- Houston County1% arsenic exceedance (area estimate)20,756 people on private wells
- DeKalb County3% arsenic exceedance (area estimate)20,726 people on private wells
- Covington County1% arsenic exceedance (area estimate)15,007 people on private wells
- Blount County2% arsenic exceedance (area estimate)14,844 people on private wells
- Jackson County3% arsenic exceedance (area estimate)14,808 people on private wells
- Lauderdale County1% arsenic exceedance (area estimate)13,940 people on private wells
- Geneva County1% arsenic exceedance (area estimate)12,873 people on private wells
- Lee County1% arsenic exceedance (area estimate)11,660 people on private wells
- Randolph County1% arsenic exceedance (area estimate)11,351 people on private wells
- Limestone County1% arsenic exceedance (area estimate)10,807 people on private wells
- Dale County2% arsenic exceedance (area estimate)9,910 people on private wells
- Tuscaloosa County2% arsenic exceedance (area estimate)9,899 people on private wells
- Coffee County1% arsenic exceedance (area estimate)9,704 people on private wells
- Chilton County1% arsenic exceedance (area estimate)9,701 people on private wells
- Cleburne County1% arsenic exceedance (area estimate)9,141 people on private wells
- Cherokee County2% arsenic exceedance (area estimate)9,071 people on private wells
- Madison County1% arsenic exceedance (area estimate)8,747 people on private wells
- Dallas County2% arsenic exceedance (area estimate)8,570 people on private wells
- Winston County3% arsenic exceedance (area estimate)8,527 people on private wells
- Chambers County1% arsenic exceedance (area estimate)8,178 people on private wells
- St. Clair County1% arsenic exceedance (area estimate)7,884 people on private wells
- Washington County1% arsenic exceedance (area estimate)7,850 people on private wells
- Escambia County1% arsenic exceedance (area estimate)7,710 people on private wells
- Marengo County1% arsenic exceedance (area estimate)7,709 people on private wells
- Choctaw County1% arsenic exceedance (area estimate)7,284 people on private wells
- Walker County2% arsenic exceedance (area estimate)7,218 people on private wells
- Clay County1% arsenic exceedance (area estimate)7,061 people on private wells
- Marion County2% arsenic exceedance (area estimate)6,916 people on private wells
- Calhoun County1% arsenic exceedance (area estimate)6,653 people on private wells
- Shelby County1% arsenic exceedance (area estimate)6,605 people on private wells
- Autauga County1% arsenic exceedance (area estimate)6,457 people on private wells
- Montgomery County1% arsenic exceedance (area estimate)6,414 people on private wells
- Clarke County1% arsenic exceedance (area estimate)5,731 people on private wells
- Tallapoosa County1% arsenic exceedance (area estimate)5,666 people on private wells
- Fayette County2% arsenic exceedance (area estimate)5,390 people on private wells
- Monroe County1% arsenic exceedance (area estimate)5,276 people on private wells
- Elmore County1% arsenic exceedance (area estimate)5,231 people on private wells
- Marshall County3% arsenic exceedance (area estimate)5,189 people on private wells
- Jefferson County2% arsenic exceedance (area estimate)5,029 people on private wells
- Conecuh County1% arsenic exceedance (area estimate)4,895 people on private wells
- Lawrence County2% arsenic exceedance (area estimate)4,826 people on private wells
- Henry County1% arsenic exceedance (area estimate)4,693 people on private wells
- Franklin County2% arsenic exceedance (area estimate)4,514 people on private wells
- Etowah County2% arsenic exceedance (area estimate)4,347 people on private wells
- Wilcox County1% arsenic exceedance (area estimate)4,115 people on private wells
- Russell County1% arsenic exceedance (area estimate)3,922 people on private wells
- Morgan County3% arsenic exceedance (area estimate)3,913 people on private wells
- Coosa County1% arsenic exceedance (area estimate)3,828 people on private wells
- Colbert County2% arsenic exceedance (area estimate)3,775 people on private wells
- Lamar County2% arsenic exceedance (area estimate)3,714 people on private wells
- Pickens County2% arsenic exceedance (area estimate)3,580 people on private wells
- Pike County1% arsenic exceedance (area estimate)3,397 people on private wells
- Perry County1% arsenic exceedance (area estimate)3,360 people on private wells
- Crenshaw County2% arsenic exceedance (area estimate)3,209 people on private wells
- Hale County1% arsenic exceedance (area estimate)3,068 people on private wells
- Butler County2% arsenic exceedance (area estimate)3,055 people on private wells
- Macon County1% arsenic exceedance (area estimate)2,600 people on private wells
- Cullman County3% arsenic exceedance (area estimate)2,593 people on private wells
- Greene County1% arsenic exceedance (area estimate)2,438 people on private wells
- Barbour County1% arsenic exceedance (area estimate)1,871 people on private wells
- Bibb County1% arsenic exceedance (area estimate)1,351 people on private wells
- Sumter County1% arsenic exceedance (area estimate)760 people on private wells
- Lowndes County3% arsenic exceedance (area estimate)744 people on private wells
- Bullock County1% arsenic exceedance (area estimate)517 people on private wells
Find a Alabama-certified testing lab
Get your well tested at a Alabama-certified laboratory. We list certification programs by state.
These figures are USGS area estimates: statistical groundwater models describing how likely elevated contaminant levels are across a county. They are not designed to predict the concentration in any single well. Only testing your own well reveals its water quality.
By TapWaterData Editorial
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