As of 2 November 2026, WaterPlain has published no corrections. When we get something wrong, we fix the page and record the fix here, with the date, the page and what changed. Found an error? Here is how to report it.
An empty log does not mean our guides are free of mistakes. It means no error has been corrected yet. Limits, standards and prices change often. Each page gets a fact-check against primary sources, as our editorial policy explains, but no check catches everything.
Corrections log
No corrections have been published.
What counts as a correction
A correction is a change to something a page got wrong, such as a limit, a dose, a price, a certification claim, a rule or a calculator result. It also covers a page that stayed unchanged after its source moved on, leaving a reader with outdated facts.
Routine work is not logged here. That means fixing a typo or a broken link, adding a new section, or updating a page promptly because a rule changed. A page shows an updated date only when its content really changed.
How we correct an error
- We check the claim against the primary source, such as EPA, CDC, USGS, the eCFR, the Federal Register, a state agency or a published certification listing.
- If the page is wrong, we fix it and show the new updated date.
- We add an entry to the log above with the date, a link to the page, what it said and what it says now.
If the source does not settle the question, we remove the claim or say plainly that it is unconfirmed. If the source supports the page as written, the page stays as it is. Advertisers have no say over what we publish, so a report from an advertiser or a seller is checked the same way as any other.
How to report an error
Use our contact page and include:
- the address of the page
- the sentence, figure or calculator result you think is wrong
- a link to the source that shows the right answer, if you have one
Our guides are general information, as our disclaimer sets out. Check the current figure with the agency or manufacturer itself before you buy, install or treat anything.