Page 28 - island County seawater intruiation report
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Island County Public Water System Sources
Seawater Intrusion Risk Ratings
Source Source SWI Monitoring
System Name PwsID Number Name Rating Required
"
Woodland Estates 98183 01 AGA582 Well 1 Low No
"
Woodland Estates 98183 02 BAE402 Well 2 Low No
Woodlands Water System 04443 01 WELL #1 AKY722 Low No
"
Wrc Water System 01432 01 WELL #1 ACJ685 V-High Yes
"
"
Wrh Water System AC165 01 Well # 1 APR981 Low No
"
Wyntercreek Water Assn 00673 01 WELL #1 AGA647 Low No
Yoga Lodge Wat "er System AC366 01 Well AGH022 ND No
Young Water Sy "stem 17781 01 WELL #1 BAA953 Low No
Youngs Larson Road AA650 01 WELL #1 AAE927 Low No
"
Youngs Lone Lake Rd AA789 01 WELL #1 AGR594 Med Yes
"
Youngs Strawber AA099 01 Well #1 AGR504 Low No
"ry Pt Water System
Yust Water Syst "em 40014 01 Well #1 AKY781 Low No
Notes:
(Seawater Intrusion Protection) is designed to help protect our aquifers / drinking water
Island County Code 8.09.099
from issues related to seawater intrusion. One of the tools incorporated into the code is the development of seawater
intrusion risk ratings for areas of the county. Areas are classified as being either 'low', 'medium', 'high', or 'very high'
risk for seawater intrusion based on water level elevation and chloride concentration data from all wells located within
1/2 mile of the point in question. Public water system (3 or more connections) sources that are classified as having
elevated seawater intrusion risk (medium, high, or very-high) are required to monitor water quality in those sources.
When monitoring of a well is required under ICC 8.09.099, the well should be sampled twice per year, during the
months of April and August. Samples should be submitted to a state-certified laboratory, and analyzed for chloride and
electrical conductivity. Samples should be collected from each elevated risk source (well), not combined wellfield
sources. Samples should be labeled as 'compliance' and the water system ID (PwsID) and source number must be
included so that the sample results can be credited to your system / well.
An SWI Rating of "ND" means there is insufficient data available to calculate a rating at this location. Monitoring is
not required in this situation (Monitoring Required = "No"). If however Monitoring Required = "No*" then based on
available information, ICPH recommends that monitoring be conducted (although it is not required).
Questions?
Contact: Doug Kelly
(360) 678-7885
D.Kelly@co.island.wa.us
Report generated 01/14/2019
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