By topic
Data disputes / utility corrections
If your utility, or a utility you have authority to represent, believes a specific data point on a utility page is incorrect, please include the PWSID, the specific field disputed, your correction, and a citation to the source.
Email: methodology@watergrades.com
We respond within 30 days. Confirmed corrections are documented in the utility page’s changelog.
Methodology questions
If you have a specific question about how a grade was calculated, why a contaminant was weighted a particular way, or want to suggest a methodology improvement.
Email: methodology@watergrades.com
Press inquiries
For interview requests, fact-checking on stories about US drinking water, or to license data.
Email: press@watergrades.com
Partnerships and affiliate inquiries
If you represent a water filter company or testing lab and want to discuss a partnership. Please note our editorial standards documented on our disclosure page.
Email: partnerships@watergrades.com
General inquiries
Anything else — feedback, suggestions, broken links, typos.
Email: hello@watergrades.com
What we don’t do by email
We don’t provide personalized water testing recommendations or interpret individual lab results — that’s the job of an EPA-certified laboratory or your healthcare provider.
Email addresses on this page are illustrative placeholders until the site is live.