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Washington Administrative Code (WAC) 246-290 and WAC 246-291 require that a well site evaluation be performed by authorized personnel as part of source approval for any new or previously unapproved source serving a public water system. WAC 246-290 also requires a well site evaluation as part of the approval of a well that serves as the water source for a bottled water plant or ice plant.
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A well site evaluation is an inspection and written determination by the Health District that states whether a selected site is suitable for the construction of a new well, or whether an existing well is in a suitable site to serve as a sources of drinking water. During a well site evaluation, the land surrounding the proposed new well site is assessed for potential sources of contamination. For evaluations where the well already exists, the well’s visible construction is also assessed for potential problems.
Usually, people request site evaluations for loan certification purposed or for evaluation of and assistance with some problem that they are experiencing with their home’s individual water system.
Please note: a well site evaluation is only appropriate for loan certification on properties that do not already have an existing well and/or the intent is to drill a new well. For properties where the well and water system is already in place, the applicant should request an Operational Survey (PDF) instead.
No. The well site evaluation is only one of the items required for approval of a well to serve a public water system or bottled water/ice plant.
No. Legal availability of water is determined by the county in which the system is installed or by Washington State Department of Ecology.