Well Water Testing and Treatment

City water is tested for you. A private well is up to you. Texas A&M AgriLife's Texas Well Owner Network recommends testing at least once a year for nitrate, total dissolved solids (TDS), and E. coli or fecal coliform bacteria.

When to Test

• Every year, at minimum
• When the water's color, taste, or odor changes
• After the pump or well has been worked on
• After a flood near the wellhead
• If anyone who drinks the water has a suspicious illness
• Before buying a home on a well

Where to Get It Tested

Use a certified drinking water laboratory. TCEQ keeps a list of NELAP-accredited labs, and your county health department can point you to one. AgriLife Extension also holds well screening events around the state.

If a Test Comes Back Bad

The Texas Groundwater Protection Committee says that if E. coli is found, the well should be disinfected and inspected for repairs, or the water treated, before using it for drinking, cooking, or bathing, then retested. If nitrate-nitrogen is over 10 mg/L, contact local health authorities or a water well professional for guidance.

Treatment Options

Depending on the problem, options can include well disinfection, wellhead repairs, filters, or disinfection equipment. In Texas, equipment at the well is generally handled by TDLR-licensed drillers and pump installers, and treatment equipment on the house side is generally handled by TCEQ-licensed water treatment specialists or licensed plumbers.

Get Help

Get a free quote below for well inspection, repair, or treatment help.