County PW, Zone 7, Berkeley and ACWD are the permitting agencies for well construction or destruction. Alameda County Public Works Agency-Water Resources issues drilling permits for projects located in the following cities:
For contaminated property that has been cleaned up, DEH requires that the monitoring wells used to assess groundwater (GW) impact be properly destroyed (under permit), so they do not cause future contamination of the GW basin.
For private residence production wells (less than 5 hook ups), DEH reviews information related to production rates and water quality and issues letters of acceptance provided the system meets current standards. If it is a new house and there is an existing well but the new house can access municipal water, DEH would not require that the house destroy or cap the existing well though the local Building Dept might and if not the Building Depart. will at least require that anti-cross connection devices be installed.