29.30.300 Minimum water supply standards and improvement requirements outside urban growth areas.
(1) Type of Water Supply and Minimum Requirements.
(a) Individual Wells. Prior to final plat approval, one well shall be drilled within the plat. The demonstration well or surface water source shall provide at least 800 gallons per day as evidenced in a pump test, well driller’s log or water right permit from the Washington State Department of Ecology. The quality of water shall be approved by the Clallam County Environmental Health Division, including location and construction as per well log, site plan and/or site visit, bacteria, and nitrates, as applicable. It shall be shown prior to land division approval that (i) each lot will have sufficient area to satisfy well setback radius requirements of WAC 246-272-20501(2)(b) and at the same time accommodate all improvement requirements of this title; (ii) each well shall tap into a groundwater supply that provides a year-round supply of water that is adequate for domestic requirements and is safe from septic tank drainfield and surface water contaminants as determined by the County Health Officer.
(b) Community Water System. Land divisions which propose any lots one acre or less in size or unable to meet the requirements for individual wells shall be provided with a water supply in accordance with State and County requirements, as follows:
(i) Existing Community Water System. When an existing, private or public community water supply which has been approved by the Washington State Department of Health is available adjacent to or across the street from the land, the developer shall consider utilization of the system to serve the land division. If the system has sufficient capacity to serve such land division and the system has been designed by the owners of the water system with the express intent of providing water to surrounding properties, connection shall be made thereto and its supply used exclusively. A distribution system shall be provided to all lots within the land division prior to final plat approval. A letter of commitment from the purveyor is required at the time of final plat approval.
(ii) New Community Water System. When an existing community water supply system is not available to serve the proposed land division, the applicant shall provide a community water system, as follows:
(A) The land divider shall provide a community water supply facility and a complete water distribution system and may dedicate it to the lot owners’ association or a public agency approved by the appropriate agency for operation and maintenance. The dedication shall include a water supply and distribution system which includes the well, reservoir and treatment system and the land upon which they are located or upon land which the lot owners’ association shall have control and shall grant utility easements for the distribution system. The land divider may retain ownership of the system or dedicate it to a responsible person, either of whom shall operate and maintain the system consistent with State requirements, as required in RCW 70.116.134.
(B) The community water system must also demonstrate compliance with Chapter 246-290 WAC as now or hereafter amended, including monitoring data on record and satisfactory, construction records and plans on file, and not under any compliance or enforcement order. The community water system shall also demonstrate adequate water rights if required from the Washington State Department of Ecology.
(C) Construction of Water Supply System. All water system improvements required in this section shall be designed by a certified professional acceptable to the public agency of jurisdiction and constructed pursuant to plans and specifications approved by the public agencies of jurisdiction. Prior to final plat approval, the designer of the water system, as well as the agency of jurisdiction, shall certify that the water system has been constructed pursuant to approved plans and specifications.
(2) In the instream flow area, additional water supply requirements may apply. See Chapter 173-518 WAC.
(3) Requirements for Final Plat Approval. Prior to final plat approval, the applicant shall demonstrate to the Department of Community Development that a potable water source is available to serve the land division, as specified above.