Water Records Help
What to Test for After Reviewing Your Utility's Records
Whether to test your water and what to test for depends on your water source, your utility's records, and your household situation. Utility records are a starting point — they describe sampling at official monitoring points, not at every tap.
What this page helps with
- Understanding when household testing is relevant beyond utility records
- Knowing which contaminants are most commonly tested after reviewing utility records
- Understanding the difference between public water and private well testing priorities
- Finding a certified lab for the tests that match your situation
Important: Water Utility Report summarizes official records and source data. It does not determine whether water is safe to drink. For current safety guidance, check your utility, state drinking water agency, local health department, or a certified laboratory.
What official records can show
- Which contaminants your utility is required to monitor and has recently tested
- Whether PFAS, lead, nitrate, or other contaminants have appeared in utility-level sampling records
- The type of water source (surface water, groundwater) your utility uses, which affects contamination patterns
What official records may not show
- Lead levels at your specific tap — lead enters water through household plumbing and service lines, not at the treatment plant
- Contaminants not covered by current federal monitoring requirements
- Conditions in your building's private plumbing after the utility meter
- Private well conditions — private wells are not regulated by the Safe Drinking Water Act
Common tests to consider after reviewing utility records
Lead
Lead enters water from household plumbing, lead solder, and service lines — not from the treatment plant. Utility-level lead records reflect sampling at selected high-risk sites under EPA's Lead and Copper Rule protocols, not at every address. If your home was built before 1986, has lead solder, or has an unknown service line material, household lead testing is worth considering regardless of utility-level results.
PFAS
If your utility has PFAS sampling records showing detections, or if no PFAS records exist for a smaller system, a certified PFAS test using EPA Method 533 or 537.1 provides household-level information. Confirm the lab is certified for these methods before submitting a sample.
Nitrate
Nitrate in drinking water is particularly relevant in agricultural areas. Public utilities are required to monitor and report nitrate levels. If your utility is in an agricultural area and has had nitrate records, additional information on your tap-level results may be relevant.
Bacteria (coliform)
For public water systems, bacterial contamination is addressed through treatment and monitored continuously. For private wells, annual coliform testing is widely recommended. For public systems, coliform testing at the tap is rarely needed unless there has been a boil-water advisory or system disruption.
Water Utility Report does not recommend specific tests or determine whether any specific test is necessary for your household. For guidance tailored to your situation, contact a state-certified laboratory or your state drinking water program.
Finding a certified lab
Use a state-certified or NELAP-accredited laboratory. The EPA maintains a national directory of certified labs searchable by state and contaminant. Confirm the lab's certification covers the specific contaminants you want tested before submitting a sample.
What to check next
What this does not mean
- This page does not determine whether water is safe or unsafe to drink.
- A detection record does not automatically mean a violation.
- A missing record does not prove a contaminant is absent.
- Federal datasets may lag behind current local conditions.
- Household plumbing, private wells, and point-of-use conditions may differ from utility-level records.
Frequently Asked Questions
Do I need to test my water if my utility has no violations?
Utility records reflect compliance at official monitoring points. If you have an older home with lead plumbing, an unknown service line, or a specific health concern, household testing can provide information that utility records cannot. The decision is yours — a certified lab can advise on which tests are appropriate.
What is a NELAP-accredited laboratory?
NELAP (National Environmental Laboratory Accreditation Program) accreditation indicates a lab meets standardized quality requirements for environmental testing. State-certified labs and NELAP-accredited labs both meet federal and state standards for drinking water testing.
How do I collect a water sample for testing?
The collection protocol depends on what you are testing for. Labs provide sampling kits with specific instructions. For lead, a first-draw sample (collected after water has sat stagnant for at least 6 hours) is standard. For PFAS, labs provide specific containers and collection guidance to prevent contamination. Always follow the lab's chain-of-custody instructions.
Can I use a home test kit instead of a certified lab?
Home test strips and kits can provide quick screening but are not certified, not quantitative for most contaminants, and not accepted for regulatory or legal purposes. For results that matter beyond general curiosity, use a state-certified or NELAP-accredited laboratory.
Does my health insurance cover water testing?
Generally, no. Water testing is typically an out-of-pocket expense. Some state and local health departments offer free or subsidized testing for qualifying households. Contact your state drinking water program or local health department to ask about assistance programs.