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y " I I <br /> 1 _ �r f" � I. r A.,• .•I + Y.I�r, a f f r � 'I t. a, a � II � - <br /> Y ! I J �" r � r•.I f; , u�' L IaE �jN.r y- ;�8 ��"I <br /> 1. r' :I <br /> ; I t , a 1 S `+ ( � -y� t+Iwl jl dra i <br /> a I t H y M e 1p': <br /> If,,� {�i.r I:;} n t 1 i `i I:•, y r >�. I sh���':I}+d,liii` I1 i4 py1 <br /> t,'I <br /> � I. ty-. .r_ _ � r + i",� •� ' �Ls.r �� •1 � I �{,"'�I ' I - �I'`" I t r� �4� 1 II� .S v.l!� I �� �{ �j�. <br /> t . : 041Vta2000 <br /> j Y r t •,r 31 y I I f I t <br /> AGE- 95- <br /> Q <br /> Prolect:No. OLT4 F j Ii , c X51 a " <br /> rj ' l I "' Y' , I r a!+ IJ _, I r ,r • a_ <br /> Page.2 of 8 <br /> For,each sample;''both-e'nds.of the leading or chosen sleeve were covered'with Teflon°sheets,capped) , '' 'pJ <br /> - and sealed with tape.'Tlie•samples,were'labele_d• stored on ice;and transported under.chain-of=`custody <br /> to'Kiff Anal ical a Statc'of•California Department of Health Services' DHS certified anal rcat. , <br /> laboratory. <br /> L Ihl p ' <br /> I <br /> Soil was'extruded from a second brass sleeve or from the unpreserved portions of.the'soifin;the core <br /> barrel samples and"were•screened for the presence of organic vapor using an.organic,vapor meter 4 ' <br /> (OVM)'.equipped with a photo-ionization detector(PID;`Thermo Environmental 580A, '10.0 eV,` <br /> A. <br /> _ calibrated to isobut lene),. and-the OVM readings were recordedon the born 19g. The'soil was then <br /> visually described in accordance with the Unified Soil Classification System-(see Appendix A). <br /> 2.3: WELL AND BORING COMPLETION <br /> Borings MW-6 and•MW-7, were completed as ground water,midnitoring wells using two-inch .i <br /> diameter PVC casing'with 0:020-inch slotted screen installed from'approximately 45 feet to'25 feet° <br /> bsg and with blank casing extended to the surface.-The filter pack (No. 2/12.•Lonestar sand) was <br /> installed•from 45 feet to approximately 23 feet bsg. A 2-foot bentonite pellet plug vias then installed <br /> ' ;above the'f lter pack and hydrated. The wells were then grouted to neanground surface with portland .4 <br /> cement. Water-tight, traffic-rated well boxes were then installed over the:wells: As-built well_ <br /> diagrams'are depicted in Appendix A. <br /> 2.4; LABORATORY ANALYSES OF SOIL SAMPLES = <br /> Selected soil samples were analyzed for: <br /> • Total petroleum h.ydrocarbons:quantified as,stoddard solvent-(TPH ss) in accordance.;with_ <br /> -EPA Method 8015 Modified; <br /> • -Volatile aromatics: benzene' toluene, ethylbenzene.and total xylenes (BTEX) by EPA ' <br /> Method 8020'and' f <br /> r Chlorinated hydrocarbons (HVOCs) by EPA Method 8010: �` 1 <br /> 4dvanced CeoEnvironmcntal;Inc.' <br />