How we verify information
Short answer: We read each fact directly on an official or primary source, such as a health department, state program, university lab or the testing organization itself, then cite it on the page with the date we checked it. If we cannot verify a price, phone number or date, we leave it out.
Sources we use
- Federal agencies (EPA, CDC)
- State and county health and environmental departments
- University labs and extension programs (for example Penn State, Virginia Tech/VCE)
- For a specific testing program, the organization's own official page
Our rules
- Every price, phone number, address, date and rule is read directly on the source and cited next to the fact.
- Each source list shows the date we accessed it, and each page shows its last-updated date.
- If we can't verify something, such as a lab's fees or drop-off hours, we say so and leave it out. We never estimate prices or phone numbers.
- We quote what the source says and name the source in the sentence, rather than giving our own health advice.
- Affiliate relationships never change facts or ranking; public and low-cost options are listed first.
Update schedule
We re-check pages when we add or revise content and update the date shown. Programs with seasonal dates, like county clinics, change often, so always confirm with the source before you sample.
See also our about page and disclaimer.
FAQ
How does Test My Well Water verify its information?
We read each fact directly on an official or primary source, such as a health department, state program, university lab or the testing organization itself, then cite it on the page with the date we checked it. If we cannot verify a price, phone number or date, we leave it out.
Informational only, not health, medical, legal or real-estate advice. Programs and fees change; confirm with the official source. See our disclaimer and affiliate disclosure.