The fine print

Privacy

The short version: TankCheck has no database, so it could not keep your searches even if it wanted to.

What happens when you search

Your address is sent to our geocoding endpoint, which forwards it to the US Census Geocoder (or OpenStreetMap's Nominatim as fallback) to convert it to coordinates. The coordinate result may be held briefly in an edge cache so repeat searches are fast; the address is not written to any database — there is none. Tank and leak queries go directly from your browser to EPA's public ArcGIS service; TankCheck's server never sees them.

What we don't have

• No accounts, no sign-in, no cookies set by TankCheck.
• No stored search history — share links encode coordinates in the URL itself.
• No sale or transfer of any user data, because none is collected.

Third parties

Map tiles load from Esri, tank data from EPA's ArcGIS service, geocoding from the US Census Bureau and OpenStreetMap; each sees the technical request (IP address, coordinates queried) per its own policy. If advertising is enabled, ad frames are sandboxed and documented here when live.

Contact

Questions: open an issue via the site footer contact, or check the about page for methodology.