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17 January 2020 AdvancedGeo <br /> Project No. 19-4964 An Employee-Owned Company <br /> Page 6 of 14 "=� <br /> potable water to the existing residence and will provide potable water to the proposed <br /> residence. <br /> 4.4. CONSTITUENTS BEING TESTED FOR IN THE WATER SAMPLE <br /> Nitrate (NO3) constituents were tested in the existing groundwater supply well at the <br /> subject property. <br /> 4.5. GROUNDWATER SAMPLE COLLECTION <br /> On 09 January 2020, a sample of the drinking water provided by the current groundwater <br /> supply well at 438 West Mathews Road, French Camp was collected in an unpreserved <br /> 1-liter plastic container. The groundwater sample container was properly labeled, placed <br /> in a chilled container and transported under chain-of-custody protocols to McCampbell <br /> Analytical, Inc. (MAI), a California Environmental Laboratory Accreditation Program <br /> (ELAP)-certified laboratory. The sample was analyzed for Nitrate as Nitrogen (N) and <br /> Nitrate as NO3-. <br /> 4.6. GROUNDWATER ANALYTICAL REPORT <br /> Nitrate as N was detected at 9.5 milligrams per liter (mg/1) and Nitrate as NO3- was <br /> detected at 42 mg/I in the water sample. The MAI laboratory report (Work Order- 2001361) <br /> with quality assurance/quality control (QA/QC) reports and chain-of-custody form are <br /> provided in Appendix C. <br /> 5.0. SOIL PROFILE <br /> An OWTS Permit was issued for the property by the EHD on 31 December 2019 to <br /> perform a percolation test (Appendix D). On 09 January 2020, a 4-inch diameter hand <br /> auger was utilized to advance a percolation test hole to 42 inches bsg, in the proposed <br /> septic system disposal field area. <br /> A plan of the specific site features including the percolation test hole location <br /> (i.e., structures, drives, wells, septic systems, large trees, pastures, pools, natural <br /> drainage courses, ponds, waterways, etc.) is illustrated in Figure 2. <br /> 5.1. SOIL PROFILE PIT INCLUDING DEPTH AND DIMENSIONS <br /> The percolation test hole was located in the disposal field area of the proposed septic <br /> system. The percolation test hole was advanced to a depth of 42 inches bsg using a four- <br /> inch diameter hand auger (Figure 2). <br />