Find certified labs and local well water testing services in your state. Browse by state, then choose a city to compare providers offering lab analysis, on-site sampling, or mail-in testing.
Finding reliable well water testing services is essential for homeowners who depend on private wells for their drinking water. Unlike municipal water supplies, private wells are not regulated by the EPA, making it the homeowner's responsibility to ensure their water is safe for consumption.
Well water can be affected by various contaminants including bacteria, nitrates, heavy metals, and chemicals from agricultural runoff. Regular testing helps identify potential health hazards before they become serious problems. The CDC recommends testing your well water at least once a year for coliform bacteria, nitrates, and any contaminants of local concern.
Each state has different requirements for well water testing, particularly when buying or selling a home. Some states require comprehensive water quality tests as part of real estate transactions, while others leave testing decisions to the homeowner. Our state-by-state directory helps you understand the specific requirements and find certified laboratories in your area.
A standard well water test typically checks for bacteria, nitrates, pH levels, and hardness. More comprehensive tests may include screening for arsenic, lead, radon, pesticides, and volatile organic compounds. Testing costs vary by location and the number of contaminants being tested, ranging from $25 for basic screening to $500 or more for complete analysis.
When selecting a water testing laboratory, look for facilities certified by your state's department of health or environmental agency. Certified labs follow strict quality control procedures and their results are accepted for official purposes such as real estate transactions and loan applications. Our directory only lists laboratories that meet state certification requirements.