Every claim on this site is checkable, and this page is the standard it’s checked against. If a guide here ever falls short of what’s written below, that’s a correction we owe you — report it.
Sourcing Rules
Health and safety claims trace to primary authorities: the EPA, the CDC, state health departments, and state geological or natural resources agencies. Practical treatment guidance is checked against university extension services — the land-grant programs (Penn State, Nebraska, Georgia, and others) that have studied private wells for decades. Vendor materials may inform how a technology works, but a vendor’s marketing claim is never cited as evidence that it works.
A claim that cannot be traced to a primary source does not get published. When authorities disagree — as state testing schedules sometimes do — the guide says so and cites both.
How Prices Are Researched
Costs in our guides are researched, not estimated. Price ranges come from published contractor pricing data, vendor list prices, and cost-reporting services, cross-checked against each other and dated to the year of research. A price that appears in a guide reflects what the data showed when it was verified — and when we update a guide, stale prices are the first thing re-checked.
What “Testing” Means Here
The Well Water Lab is not a physical laboratory and does not analyze water samples — certified drinking water labs do that, and our testing guides exist to route you to one. What we test is the advice: whether a claimed cause actually produces a described symptom according to the research, whether a recommended fix is matched to the contaminant it’s sold for, and whether a quoted number survives contact with its primary source.
How Guides Are Produced
Guides are researched, written, and reviewed by Muhammad Awais. Research and drafting make use of modern software tools; every fact, figure, and source link in a published guide is verified against the cited source before publication, and the author is responsible for every word that goes live.
Corrections
Verified errors are corrected in the article itself, promptly. Substantive corrections — a wrong number, a claim a source doesn’t support — are fixed visibly rather than quietly. Reader-reported corrections are credited on request.
Independence and Advertising
This site earns revenue from advertising served by Google, which is visually distinct from editorial content and has no influence over it. We run no sponsored content and no affiliate links. If a guide ever includes a commercial relationship of any kind, it will be disclosed on that page in plain language.