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"L 'T-e - 14' F <br /> - <br /> A. <br /> :l <br /> 'it �` � . ' .. _ --.. - w• � - +i r<- —c-aaz' <br /> Quarterly Report -'Fourth Quarter 2004 { - r <br /> {"�S'' '✓t'� - <br /> " '7 ` - MMCO-TRUCK PLAZA �d� <br /> 41, <br /> - rte. ,-=-�•- :RA �po22502SHn,-'California, <br /> qF <br /> J`_ .- - r - ? •- ',`. � <br /> IN'TRQDUCTION_ ' -.; "' ;Y-, <br /> �. At the,request of Mr Dan`Koch,of Olympian,OiLCompany, Advanced GeoEnvirorimental, Iric: x <br /> f A (AGE)has prepared`this quarterly reliort.for Jimco`. Truck_Plaza,'located;at 22502:South Highway .z <br /> - -99;Ri on,.California the.site The sco e of w.ork.included uarterl ground water monitorin arid•. <br /> A (. )�. p_ q = Yom, g <br /> - <br /> -preparation of this report. The location of the,s to and.surroiindmgarea are:'illustrated 6n.-Figure--1 _ <br /> .. s - '2: <br /> ;f $ite.structures and bonng-and monitoring.well:locations ar&Illustrated on Figure 2 <br /> This report has been prepared,in accordance with guidelines established by_the Central .Valley �' 4 <br /> N• Ea <br /> Regional 'Water Q;uality`'Control--Board•(GVRWQCB)`for-the -subsurface' investigation: <br /> r; <br /> underground storage. ank (UST) sites. Background information,.including details•of previous site <br /> ' assessment:work,.was presented in the-AGE-prepared Preliminary Investigation and Evaluation r <br /> - Y - <br /> �� Report.(PIER); elated 13 Decemberl 1999: <br /> _it wif'n <br /> o;l <br /> yl <br /> PRO <br /> 2.0 CEDURES ,; ' - zS r ° <br /> jL <br /> l^ieid•work was,conducted in accordance with gurdelineS`c'stablislied by the CVRWQCB-for the'- <br /> investigation on-of.-UST sites and the San Joaquin-County,Environmental Health Departm_ent(EHD)'- F <br /> for the'sampling:of ground'water'monitoring wells ` <br /> _ <br /> 2-4 WELL 1VIONITORING AND PURGING <br /> „7 <br /> x On 21.0_ctober 2004,:a Solinst water level meter.was used to measure the depth to ground water-from,- <br /> : . the-tops-of the well casings.iii ground water monitoring wells MW 1 through MW 9 The depths to ; ; <br /> aground water are summarized in Table L. XT <br /> _After water levels were'gauged,_disposable plastic.bailers were used to-purge;monitoring'wells: J <br /> {' l MW lahroughFMW=9 and MW:-7:•through MW-'9'o -a-minimum-6f^three casing=water.volumes <br /> - <br /> t {approximately i to 1.75 gallons}°of groiirid water. Monitoring;well MW 7'was.purged dry after. <br /> = <br /> 0.75,gallons of.watd had-.been evacuated:Free petroleum product was not.observed iri the ground <br /> «f water monitoring wells:Thespurged water-temperature,'pH� and conductivity were measured at' <br /> 4. !, r: _ , <br /> r =regular intervals,using anA Oaktori water'analyzer :fieid data sheets are included=iri:Appendix A, ' <br /> to <br /> Purged water;was stored on-site iri properly labeled,.Department of.Transpoitatron(DOT)-appro'ved ` <br /> 55-gallon drains - =g` - '� <br /> lu <br /> ' jfi - -F. V `�'4.."s _ tib• � 5�.3 -� '21 r #: -� +S, _ M� �L 'e _ �: <br /> i.i.r <br /> x L E -. �-Y -' -..� '-� g `sx {- �4�i-�,c� "�'"'� i � � � •�r-r-� _ �-e rr` <br /> -4.w- r ` - _ �y �,x -.i - --�`s-�•er :r Al <br /> L. F r^ - '"�^- _ a.� ,vr r 5.•. '£C :; - - 's. x - 7 - --i xy s" <br /> 'jik--_ - - E Advanced G60Environmental inc <br /> }-- ..-�.� �'- +" � .-' Jam- ?' - .. '�l' !. i.- ., .A i�� �S�\tw � ;IF 1'...r-S 4b• f �� tixh.- f .- 7�'E'��- � -� x--� - <br />