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measured through hole using a rigid steel measuring tap and converted to the nate shown holo%%. <br /> Drilling of P-I encountered Sandy Silt soils in a medium dense and slightly moist conditions to a <br /> maximum depth explored of 14 feet. Drilling ol'P 2 encountered sandy clay slightly moist to a <br /> depth of approximately 3.5 feet. Boring logs are included in Appendix D. Test results are <br /> presented below. Field percolation test report is included in .Appendix G Nitrate Loading Study <br /> (NLS) prepared by.lames D Robinson. PE. CEG is included in Appendix F. <br /> Test Hole #1 Test Bole#2 <br /> Diameter. 8-inch Death: 40-inch Diameter: 8-inch De the 176-inch <br /> Time Reading Water Drop Refilled Tinto Readin Water Dro Refilled <br /> 8-22 24 8-1 170.0 - - <br /> 8-42 23.8 0.2-Inch 8-15 173.0 3.0 170.0 <br /> >-15 173.11 M) 170.0 <br /> 445 172. ? 5 170.5 <br /> 10-15 173.(1 2 � <br /> Water encountered in the test hole overnight 10-45 171.3 I 1 t ).n <br /> (pre-soak) <br /> I1-15 17t1.() 1.0 <br /> II-45 I71 ., L? <br /> 12-15 172.4 I I <br /> PERCOLATION RATE: 27.2 <br /> 7.0 CONCLUSIONS AND RECOMMENDATIONS <br /> Based on the review of NLS report. field investigations and laboratory results. TEST <br /> recommends: <br /> • Well is located on up gradient of Septic system area. Groundwater can be used tiar <br /> drinking purpose for the proposed uses. <br /> • Deep percolation test results and soil strata at 10 feet - 16 feet depth (which is silt with <br /> sand) indicates this strata may be used for septic system. <br /> • Septic ,yslem is located on downstream of proposed well, will have no impact on septic <br /> ;v stem. <br /> • Anah sis of water samples collected from faucet of the domestic well on July 12. and 20. <br /> 201(1 had low DBCP concentration and little bit higher Nitrates. Agricultural chemical <br /> applications. diaries. and wineries in the area may be the most significant sources of <br /> nitrates into the groundwater. <br /> • Existing nitrate le+el in ground water will not have detrimental effects on health. A <br /> constant pumping of groundwater will C%eotualh reduce this level below to M('I.. <br /> • NLS report. groundwater analytical test results. L110 laCrer1Iath1n testing results indicate <br /> site is suitable air the proposed construction. <br /> OOD ES10 <br /> Me.C 8134E ' Ali - PE C64568 <br /> FJCP. .3� Jt �• <br /> 7 1v <br /> F �- <br />