EPA — U.S. Environmental Protection Agency How's My Waterway Public access to local water quality status (rivers, lakes, beaches, drinking water) via the ATTAINS data layer. Documentation GitHub OpenAPI Documentation 📖 Documentation https://mywaterway.epa.gov Specifications ⚙ OpenAPI https://raw.githubusercontent.com/api-evangelist/epa/refs/heads/main/openapi/mywaterway-openapi.json Examples 📝 Example https://raw.githubusercontent.com/api-evangelist/epa/refs/heads/main/examples/mywaterway-generic-example.json Schemas & Data 📊 JSONSchema https://raw.githubusercontent.com/api-evangelist/epa/refs/heads/main/json-schema/mywaterway-generic-schema.json 📊 JSONStructure https://raw.githubusercontent.com/api-evangelist/epa/refs/heads/main/json-structure/mywaterway-generic-structure.json