With the exception of community water supply wells, which are defined as water wells used to supply water for domestic purposes in systems subject to Chapter 7 of Part 1 of Division 5 of the California Health and Safety Code, permits for the drilling of wells or water wells under this section shall be limited to wells or water wells which supply water for contiguous parcels of land shown under one ownership, as such parcels are designated on the county assessor's latest assessment roll. (Prior code § 23-40)