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Roy Jensen and Associates <br />Consulting Hydrogeologists <br /> <br />8805 NE 186th Place <br />Bothell, Washington 98011 <br />206-485-9155 <br /> <br />July 17, 2003 <br /> <br />Mr. Charles Stifling <br />6037-6th Ave. N.E. <br />Seattle, WA 98115 <br /> <br />RECn- .VED <br /> <br />JUL 2 4 2003 <br /> <br />JEFFERSON COUIg' DCD <br /> <br />Draft Hydrogeologic Assessment <br />Stirling Property <br />267 Sierra Trail, Quilcene, WA 98376 <br /> <br />Dear Mr. Stifling, <br /> <br />This report presents our analysis ofhydrogeologic conditions at the' Stirling property <br />located at 267 Sierra Trail, Quilcene, Jefferson County, Washington. The general <br />location of the property is shown on Figure 1. This assessment addresses the relevant <br />components of an Aquifer Recharge Area Report per Jefferson County Uniform <br />Development Code (UDC) Section 3.6A 0 as required by the -UDC Groundwater <br />Protection/Seawater Intrusion Amendments, March 3, 2003. Mr. Charles Stirling <br />authorized our services on July 2, 2003. <br /> <br />It is my understanding that a water sample from your well, submitted as a required '-. ' . "' <br />element of an application for a residential building permit (received May 6, 2003), <br />exceeded a concentration of 200ppm for chl0ride. According to UDC ordinance 03-303- <br />03 and subsequent revisions, a single well water measurement above 200-ppm chloride <br />triggers a high-risk salt-water intrusion zone (SIPZ). A SIPZ is defined in the UDC as <br />"aquifers and laq...d overlying aquifers with some degree of vulnerability to seawater." <br />SIPZ are "defined either by proximity to marine shoreline or by proximity to <br /> . <br />groundwater sources that have demonstrated high chloride reading." <br /> <br />-SCOPE <br /> <br />The UDC mandates, among .other things, that for a well to be approved by the JefferSon <br />County Community Development Center as source of potable water, the owner must <br />provide evidence through a hydrogeol0gical assessment that a reasonable probability <br />exist that use Of the proposed well will not degrade the subject aquifer. This report <br />proposes to show, using currently acceptable methods of analysis, .tt~.~t pumping of water <br />from the Stirling well will not degrade the water quality ofneighborihg wells and <br />therefore not degrade the aquifer. <br /> <br />Draft Stirling Property Assessment 1 of 9 7/22/2003 <br /> <br /> <br />