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RECEIVED: 9 19-Ur; )b:14; bib e, bJbe uPLbiiWA LXPWUHu.JIJ, 0. <br /> - 09/19/97 18:20 FAX 916 8905 CH2M HILL • (a]000/000 <br /> Wendy Wyels <br /> Page 4 <br /> September 15,1997 <br /> 134122.1,4m <br /> l�t�C c.�" leu S� �vr�wSS <br /> UsLE 1 <br /> Geoprobe Sampling Locations <br /> Koppel$10C on Terminal <br /> Sample Location(s) Sample Depths and Types Location Rationale <br /> 1,2,3 Soil samples at 2 and 5 feet Investigate contribution of <br /> 6J 7 8 below grade seasonal pond and assess <br /> Groundwater samples at 5 feet upgradient contribution <br /> a i below water table (Calfarm/A&B field) <br /> 4,5,23-26 Soil samples at 2 and 5 feet Investigate contribution of PM <br /> l l 1 below grade(#4 and#5) Ag drainage infiltration on areal <br /> Groundwater samples at 5 feet groundwater concentrations <br /> below the water table <br /> 9-1,3,27-31 Groundwater samples at 5 feet Investigate western <br /> I I t l t U l k below water table concentrations <br /> -'' 14,15 Groundwater samples at 5 feet Investigate concentration levels <br /> t% below water table at downgradient property <br /> boundary <br /> 16 Groundwater sample at 5 feet Investigate eastern <br /> % below water table concentrations <br /> 17-20 Groundwater samples at 5 feet Investigate downgradient <br /> lilt below water table concentration limits in <br /> southeast,south and southwest <br /> directions <br /> 21 -22 Groundwater samples at 5,20, Investigate on-site vertical <br /> i 1 and 35 feet below water table concentrations <br /> 3� <br />