Developer Central
EPA's Developer Central is a resource for developers who are interested in building applications using EPA data and Web services.

Lookup Services

WATERS Lookup Services are query services returning small nonspatial result sets of WATERS data. Version: 2 Office: Office of Assistant Administrator, OAA, Office of...

Identify Service (SOAP)

The identify service answers the question, What information exists in EPA program data systems for this point in the surface water network? The service...

GetTransactionHistoryByParameters

Returns a summary of the transactions processed by the WQX System. Version: 2.1 Office: Office of Wetlands, Oceans, and Watersheds, OWOW, Office of Water,...

GetResultByParameters

Returns a collection of Activities and Results. Version: 2.1 Office: USEPA, Office of Water, OWOW, Office of Wetlands, Oceans and Watersheds, OW

GetProjectByParameters

Returns a collection of Projects for the organization passed in. Version: 2.1 Office: Office of Wetlands, Oceans and Watersheds, OWOW, USEPA, OW, Office of...

GetProgramList

This service shall return an XML file conforming to the P2R_P2R_v1.0.xsd schema. The result file shall contain a root ProgramList element with zero or...

GetPMDataByHandler

This service will retrieve permitting data for the specified handler id. If a change date is provided, the result will only contain data that...

GetHDMaxSequence

This service will retrieve the maximum handler source record sequence number used for the specified handler id. The source type and state are optional...

GetHDDataByHandler

This service will retrieve handler data for the specified handler id. If a change date is provided, the result will only contain data that...

GetGSDataByHandler

This service will retrieve geographic information system data for the specified handler id. If a change date is provided, the result will only contain...