A.
A well site inspection report must be filed with San Juan County health and community services (H&CS) prior to drilling all new wells. This report may be completed by the well driller, a certified designer, licensed engineer, or H&CS. This report will include a plot plan on a consistent and standard scale indicating: parcel number, well i.d. number, well location coordinates, property lines and easements, existing and proposed buildings, marine shorelines, bodies of fresh water (including seasonal streams), existing and proposed roads and driveways, existing and proposed septic systems, any potential or existing source of contamination, and adjacent public and private water sources.
B.
Well siting on lots utilizing an on-site sewage disposal system (OSS) shall contain a plot plan signed by the licensed well driller and an engineer or certified septic designer showing the proposed location of the OSS and well.
C.
Well siting must meet the following criteria, or comply with the variance procedures in subsection (D) of this section:
1.
Wells shall be located at least 100 feet from a drainfield and 1,000 feet from a solid waste landfill. Wells shall be located at least 100 feet from a septic tank and components, unless additional surface seal (double seal) or other H&CS approved mitigation is used.
2.
Wells shall be located at least 100 feet from the neighboring property line, except:
a.
Nothing herein shall prevent a well from being located within 100 feet of the neighboring property line provided the neighboring property owner has signed and recorded a sanitary covenant restricting the placement of any potential sources of contamination within 100 feet of said well; or
b.
H&CS may grant a variance to allow a well to be located no less than 50 feet from the property line. Said variance must be granted prior to drilling the well. The variance must be supported by a vulnerability assessment. Variance requests and vulnerability assessments must be submitted by a qualified water system designer, well driller, or engineer and contain proposed mitigation measures.
3.
Wells completed with six feet or more of impermeable material between the surface and water table must have a 100-foot sanitary setback, unless a variance is supported by a vulnerability assessment. A variance may be granted for no less than a 50-foot radius.
4.
Wells completed with less than six feet of impermeable material must have a 100-foot sanitary setback. A variance to setback requirements may be issued by the Department of Ecology.
5.
Shallow wells and springs must have a 100-foot sanitary setback and submit an inventory of all potential sources of contamination within 600 feet.
6.
If the sanitary setback affects an adjacent property, the owner must obtain a sanitary easement, recorded with the auditor's office, prior to well construction.
D.
If the siting requirements cannot be met the applicant must submit a vulnerability assessment by a qualified water system designer, well driller, or engineer, with proposed mitigation measures.
E.
Failure to meet siting requirements will result in denial of any County permits requiring demonstration of potable water.
(Formerly 13.06.110; Ord. 14-1996; Ord. 4-1998; Ord. 14-2000 § 4; Ord. 10-2001 § 4; Ord. 2-2004 § 1; Ord. 22-2013 § 4)