Well water contaminant guide
E. coli in private well water
E. coli suggests fecal contamination and can cause acute illness.
What to do
Do not drink the water. Use bottled water and contact your local health department or well professional.
Treatment options
- Immediate alternative water
- Well disinfection
- Source correction
E. coli guides by state
E. coli in Alabama well water
State-specific guide for interpreting e. coli results in private wells.
E. coli in Alaska well water
State-specific guide for interpreting e. coli results in private wells.
E. coli in Arizona well water
State-specific guide for interpreting e. coli results in private wells.
E. coli in Arkansas well water
State-specific guide for interpreting e. coli results in private wells.
E. coli in California well water
State-specific guide for interpreting e. coli results in private wells.
E. coli in Colorado well water
State-specific guide for interpreting e. coli results in private wells.
E. coli in Connecticut well water
State-specific guide for interpreting e. coli results in private wells.
E. coli in Delaware well water
State-specific guide for interpreting e. coli results in private wells.
E. coli in District of Columbia well water
State-specific guide for interpreting e. coli results in private wells.
E. coli in Florida well water
State-specific guide for interpreting e. coli results in private wells.
E. coli in Georgia well water
State-specific guide for interpreting e. coli results in private wells.
E. coli in Hawaii well water
State-specific guide for interpreting e. coli results in private wells.
E. coli in Idaho well water
State-specific guide for interpreting e. coli results in private wells.
E. coli in Illinois well water
State-specific guide for interpreting e. coli results in private wells.
E. coli in Indiana well water
State-specific guide for interpreting e. coli results in private wells.
E. coli in Iowa well water
State-specific guide for interpreting e. coli results in private wells.
E. coli in Kansas well water
State-specific guide for interpreting e. coli results in private wells.
E. coli in Kentucky well water
State-specific guide for interpreting e. coli results in private wells.
E. coli in Louisiana well water
State-specific guide for interpreting e. coli results in private wells.
E. coli in Maine well water
State-specific guide for interpreting e. coli results in private wells.
E. coli in Maryland well water
State-specific guide for interpreting e. coli results in private wells.
E. coli in Massachusetts well water
State-specific guide for interpreting e. coli results in private wells.
E. coli in Michigan well water
State-specific guide for interpreting e. coli results in private wells.
E. coli in Minnesota well water
State-specific guide for interpreting e. coli results in private wells.
E. coli in Mississippi well water
State-specific guide for interpreting e. coli results in private wells.
E. coli in Missouri well water
State-specific guide for interpreting e. coli results in private wells.
E. coli in Montana well water
State-specific guide for interpreting e. coli results in private wells.
E. coli in Nebraska well water
State-specific guide for interpreting e. coli results in private wells.
E. coli in Nevada well water
State-specific guide for interpreting e. coli results in private wells.
E. coli in New Hampshire well water
State-specific guide for interpreting e. coli results in private wells.
E. coli in New Jersey well water
State-specific guide for interpreting e. coli results in private wells.
E. coli in New Mexico well water
State-specific guide for interpreting e. coli results in private wells.
E. coli in New York well water
State-specific guide for interpreting e. coli results in private wells.
E. coli in North Carolina well water
State-specific guide for interpreting e. coli results in private wells.
E. coli in North Dakota well water
State-specific guide for interpreting e. coli results in private wells.
E. coli in Ohio well water
State-specific guide for interpreting e. coli results in private wells.
E. coli in Oklahoma well water
State-specific guide for interpreting e. coli results in private wells.
E. coli in Oregon well water
State-specific guide for interpreting e. coli results in private wells.
E. coli in Pennsylvania well water
State-specific guide for interpreting e. coli results in private wells.
E. coli in Rhode Island well water
State-specific guide for interpreting e. coli results in private wells.
E. coli in South Carolina well water
State-specific guide for interpreting e. coli results in private wells.
E. coli in South Dakota well water
State-specific guide for interpreting e. coli results in private wells.
E. coli in Tennessee well water
State-specific guide for interpreting e. coli results in private wells.
E. coli in Texas well water
State-specific guide for interpreting e. coli results in private wells.
E. coli in Utah well water
State-specific guide for interpreting e. coli results in private wells.
E. coli in Vermont well water
State-specific guide for interpreting e. coli results in private wells.
E. coli in Virginia well water
State-specific guide for interpreting e. coli results in private wells.
E. coli in Washington well water
State-specific guide for interpreting e. coli results in private wells.
E. coli in West Virginia well water
State-specific guide for interpreting e. coli results in private wells.
E. coli in Wisconsin well water
State-specific guide for interpreting e. coli results in private wells.
E. coli in Wyoming well water
State-specific guide for interpreting e. coli results in private wells.
Keep your well history
Interpret once on the web. Track forever in the app.
Save test history, set annual reminders, compare results over time, and create a shareable report for your family or water professional.
Track E. coli in the iOS app