How we check stations.

Where records come from

We started from OpenStreetMap map features tagged as dump stations or as properties with a dump station. Those are discovery leads only. Each listed station was then checked against an official source: the operator’s own page (for example a city, wastewater district, park agency, federal agency or travel-stop company location page), or a state transportation department’s rest-area listing.

We also reviewed official state rest-area lists, state and federal park and campground pages, municipal pages and travel-stop location pages to find stations that the map data missed. Independent directories, forums and search-engine summaries were used only to find candidates, never as evidence.

What we record

• That the operator confirms an RV dump station at that specific place.
• Who may use it, recorded separately for non-guests, registered guests, members and customers.
• The dump fee, with the group it applies to and any conditions.
• Dump-station hours and season, kept separate from store, office, gate or campground hours.
• Drinking-water fill and rinse water as separate services.
• Closure and restriction notices, with their dates and wording.

Each fact is linked to the source and a short exact quotation. A missing fact is shown as not confirmed. A missing fee is never shown as free.

Inclusion

A station is listed when its operator or responsible agency confirms a fixed, land-accessible RV dump station at a usable location. Boat pump-outs, campsite sewer hookups, mobile pump-out services and unbuilt proposals are not listed. Stations whose operator says there is no dump station are excluded and the decision is recorded.

A station gets its own page when it has at least two independently supported visiting facts beyond its name and address, such as access terms, a fee, a season or a current closure. Other confirmed stations appear in state and search lists, linking to the operator’s page.

Source precedence and conflicts

An official notice about the specific dump service outranks older general property information. When two official sources disagree, we keep both and use cautious wording instead of choosing the convenient one.

Dates and closures

Dates are read in the station’s local time zone. A closure stays in place after its stated end date until the operator confirms reopening. Approximate dates stay approximate. Closure notices are due for recheck within 7 days, fees, access terms and schedules within 30 days, and identity and location within 180 days. These are our own policies, not official guarantees.

Coverage

This directory does not list every RV dump station in the United States. A state with few or no records means our research found few or no eligible records there, not that none exist. The full coverage report by state is kept with the project records.

Data and licenses

Discovery data © OpenStreetMap contributors, available under the Open Database License. Where a station’s map point comes from OpenStreetMap, the station data is a produced work derived from it; the public station data file used by search is available at /data/stations.json under the same license. ZIP code and place reference points come from GeoNames (CC BY 4.0).

Where map points come from

Each station page says where its map point comes from and how precise it is. In order of preference: coordinates published by the operator for that location; the station's official street address, located with the U.S. Census Bureau geocoder; for state parks, the park's coordinate in Wikidata (CC0); for federal campgrounds, the facility point published by Recreation.gov; an OpenStreetMap feature matched by name in the same state; a map link on the operator's page (which may mark an office or the whole property, so it is never used for directions); and, as a last resort, the GeoNames reference point of the stated town or of the station's official ZIP code, labeled as approximate. A map point for a park or campground marks the property, not the dump-station entrance. Directions use the station's address or name unless the operator's own coordinates identify the facility.

Corrections

If something is wrong, email [email protected] with the page address and a link to the operator’s current information. Corrections are checked against the official source before the page changes.