Accountability
Corrections
When a published figure, place assignment or statement turns out to be wrong, we fix it and record it here, newest first. Routine updates from a new EPA data release are not listed; each page shows its own data date.
A clearer perspective.· County and state totals
Some county and state counts changed. No measurement was added or changed.
Some water systems were assigned to a state or county from their administrative mailing address instead of the state encoded in their system ID or their reported service area. We now use the state-issued ID for the primary jurisdiction, check county links against Census codes and names, and leave ambiguous records out of county totals.
The EPA source records and their sampling dates did not change.
Report an error
Email martincabrera@neuraorkesta.com with the page URL, the item that needs correcting and the official source if you have one. See about the project and the methodology.