Number Of Groundwater Sources Required – Existing Systems

Existing community PWSs served by groundwater and intending to serve more than twenty-five (25) connections or equivalent dwelling units are subject to the following requirements for the number of groundwater sources required. (7-1-24) 01. Existing System with All Sources Constructed Prior to July 1, 1985. A community PWS served by groundwater and with all existing sources constructed prior to July 1, 1985 will be required to comply with Subsection 501.17 upon substantially modifying the PWS after July 2002. (7-1-24) 02. Existing System with Any Sources Constructed After July 1, 1985. A community PWS served IDAHO ADMINISTRATIVE CODE IDAPA 58.01.08 Department of Environmental Quality Idaho Rules for Public Drinking Water Systems Section 514 Page 57 by groundwater with any sources constructed after July 1, 1985 is required to comply with Subsection 501.17 when a material modification is made to the PWS after May 8, 2009, which triggers the PWS to be classified as substantially modified. (7-1-24)