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tk 1\ a <br /> �� A20 Area of WWTP Lagoons Domestic <br /> SSW <br /> "5�1i h`p`A Sewer A NNE <br /> r1o�S� '1 ``2� c �tS� Influent 1 <br /> B �`rk` River o ti �� ` ``L B' <br /> � 5 <br /> .-� <br /> ............. <br /> 50 50 <br /> tIntermediate Aquifer M-23C1 43.29 M-1 7C1 <br /> M-34C 39:57 M-32C 39:51 <br /> r <br /> r <br /> 43.3 <br /> M-37D 30.95 M-34D 30117 Lower Aquifer <br /> M-32D 29:61 = M-23D 29:63 <br /> B . <br /> 1: <br /> 0 0 : r: 0 <br /> A77 6.82 <br /> LL /7/08) (6/18/08) (4/22/08),A <br /> v :i �::: ::: A 10.6 OO <br /> 8 : ::: A <br /> -50 (4/22/08) <br /> --—— -- Base of Upper Aquifer —_—_ <br /> ----- — .i — ----- <br /> :, /7/08) (4/22/08) C1 <br /> r' <br /> N C :.':::::::::. :::: C N <br /> • I:: 6::::::::::: 21ILL .7 101.4 <br /> ILL <br /> (4/22/08) C <br /> 0 -100 m: ..--:::.::: -100 0 <br /> cts L cd <br /> > <br /> Lu m :::::::::::: 7 w <br /> _ Base of Lower Aquifer <br /> -150 -150 <br /> (8/8/08) •D <br /> ii m r <br /> • •6.8 (7/18/08) <br /> -200 t -200 <br /> I <br /> 2.74 <br /> (8/12/08) All Non Detect <br /> 0.5 <br /> Well-Graded Gravel Well screen <br /> -250 ,::: : :: (8/93/08) <br /> I <br /> (8/13/08) 6.2�<10 pg/L DO Poorly Graded Gravel — 3rd quarter water levels <br /> Di <br /> ... s.. ................. pp Silty Gravel <br /> • <br /> 25.4 10-100 pg/L <br /> VApproximate location o <br /> (8/13/08) :. Well Graded Sand potentiometric surface <br /> based on water levels <br /> Poorly Graded Sand collected July 14,2008. <br /> N -300 TCE+cDCE+VC—249 100 1000 pg/L -300 <br /> o' (pg/L) [Ell Silty Sand <br /> o <br /> HYDROSTRATIGRAPHY AND COC DISTRIBUTION <br /> Trichloroethene(TCE) Clayey Sand BENEATH THE WWTP LAGOONS <br /> ® Lean Clay Site Conceptual Model <br /> S <br /> 0 500 feet cis-1,2-Dichloroethene(cDCE) Former Nestle Facility and Surrounding Area <br /> I I ® Silt Ripon, California <br /> 10X Vertical Note:July 2008 data is reported in ECM,2008b.August 2008 analytical <br /> data provided by ECM.This data is for hydropunch samples data chloride(VC) By' Date:01/28/2009 1 Project No. 9837.005 <br /> o Exaggeration collected while drilling the pilot boring for a replacement well on Fat Clay <br /> 7501 Kiernan Avenue in Modesto,California. Data collected between 7/16/08 and 7/18/08 unless otherwise noted. A M E C G e o m a t ri x Figure 36 <br /> 661 <br />