An Existing and Potential Pollution Source Surveys (EPPS) is an assessment of a proposed or existing water well location to help with the location and evaluation of public water supply wells and springs for potential and existing pollution source hazards.
An EPPS is required where Existing/Potential Pollution Hazards are identified within ¼-mile of a proposed well or spring. An EPPS shall be reported to the TCEQ when before construction or as required by the TCEQ Executive Director and shall include all hazards and any other facilities that may threaten the quality of the public drinking water.
Federal, State, and Municipal government, and private owners and operators of property or facilities have an EPPS conducted if they are interested in adding a drinking water source to their site. Along with Design engineers who are in the process of designing and permitting a proposed water well location for use in public consumption will need an EPPS done. The surveys and inventories conducted provide information that may allow the TCEQ to reduce chemical monitoring requirements, and grant exceptions to rules for well construction and sanitary control easements.