A DW-SFTIES front door for your SDWIS/STATE data
This service exposes read-only, DW-SFTIES-compatible GET endpoints backed by an existing SDWIS/STATE database — so custom apps, reports, and integrations can start moving to the new EPA API contract before DW-SFTIES goes live. Three ways to explore it below.
Swagger UI
The OpenAPI contract. Every endpoint, parameter, and response schema — try any request in place.
Open API docsExplorer
Task-oriented browsing: start at a water system and drill into its facilities. A feel for the data, no code.
Browse the dataEndpoint Gallery
Developer reference — “how do I use this endpoint?” One page per subject, copyable cURL/fetch, live results.
See usage examplesImplemented entities
Water Systems
Facilities
Sampling Points
Legal Entities