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Z7V <br /> nE <br /> g i u'arterl 'Re ort -Third-Quarte i:2004 � <br /> 41 4 <br /> - ^� QUICK°N SAVE#2� <br /> _ South EI Dorado Street,•Stockton, Cahfoi6ii - a z <br /> k U2057 � �.,�.;.-;'rte-.-�•x^.T`-• "s_ ��y � _ - - T;f* '� <br /> Sz_ <br /> ' ra i' -r + �. — � .� -a `+��t-• - � ...`fit a '� - _:. '-'^ -ix Y. — l <br /> 1 0. INTRODUCTION L 4 <br /> At the request bf Mr Cliaran Dhillon,Advanced`GeoEnviionxnental; --(A has prepared this; x v <br /> quarterly report for.the=property located at 2057 South.El Dorado'Street, Stockton',California(site) <br /> The site and the surroundin area are Illustrated on Figure l Structures;borings,and momtoeufg welly._ <br /> locations are illustrafed oriFigure=2: Site-backgraurid information is summarized mAppendix A - S <br /> .5 .� _ 2 0: PROCEDURES ��`��- � .�,.� �� �' � � _ � �'� ._�- •w ..�� <br /> _t :'�; On 30 August=-2004; three :ground water'rzionitonngwells (1VIW'l, MW-2 and 1VIW 3).were =� s <br /> rnonitor_ed:and sampled Field:wdrk was performed iii accordance with guidelines issued by the <br /> ' -Central.-Valley'=Regional Water, Quality•Control Board (CVRWQCB) far the investigation _6 7 <br /> undergro�irid storage�tarlk :(UST) sites-and by, San'Joaquln,County Environmental;Health <br /> — <br /> -� Department(EHD) for- sam <br /> the ling of ground water onitormg Wells - a <br /> T _ <br /> T <br /> AE` .r—i' _ ,y - f _ - -y:_ire— - --3 '� .a. • F`"=.`Y - <br /> F ': ' T - T <br /> ir <br /> WELL IVIONITbRING AND EVACUATION <br /> Y <br /> , - The depth to•ground water'in each-mh onitoring well was measured from the top of the well casing to f <br /> the nearest 0 01.=foot,utilizirig.a S:olinst water level.meter;Groui water elevation in each well was , g <br /> " = :calculated;b subtracting the measured.depth.to}ground water from the`surveyed casingelevation: <br /> Y � x <br /> r f After water levels were measured,-_approximately 5 gallonsTof water(a minimum_of three casing _ f� <br /> water volutnes per well):were purged_from inonito_ ring welts=IVIW 1=through MW-3 using a_Waterra;'� <br /> x H dro Lift II inertia pump.and dedieatcd tubing. Ground-water tem erature;. H and conductivity - t <br /> were measure&at regular-intervals.duHng purging using an Oaktori.water analyzer.Field-sheets and k <br /> _ . <br /> .data are-included in Appendix B 'Purged water.was stored:on site"in_properly labeled,_Depai tment <br /> of Transportation(DOT)-"approved'55 gallon drums- <br /> it <br /> COLLECTION AND ANALYSIS'OFWATERSAMPLES,: , 1 <br /> Watersarriples were collected from each purged well utilizing the Water _Lift lI'inertia pump.'_ - - <br /> t and dedicated tubing <br /> —ing.the._wells to achieve arnimmm$0%recovery of the pre-purge. <br /> " water;volume Each watersam le was transferred into laborato su lied,40 milliliter ml ,volatile-� <br /> z <br /> _ organic--analysisF(VOA) vials - ritairiing-0.5 ml-;1.8%"li'ydrochloric acid as preservative; After _ <br /> . '&41-ection, the-sarriples wer'e=properly-labeled,pl ca ed"in a-chilled container,and transported:under ` <br /> cham'afcustody to-Cal Tech Environmental Laboratories(CTEL),a California Departrrient ofHealth <br /> A - -y_Services{DHS) certified analytical laboratory, for analysis _The samples_were analyzed for <br /> ildvaW d GeoEnvir 'm ntal,Inc <br /> - Tip <br /> 3.,. _ a- - :5. - - _'�= _ - £,; r� ,.. •�,.-' - s . ice -� <br /> 7Lz <br /> _ y r J <br /> . F -, _.�•, .�'-. - Yc'_" - ..v - �_ ..s-: ='^F� -sY s� a =.., �' - . �' � .._�$ �� _+k '4 -7_ y -r 3v—` --'� v. <br />