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<br /> Quarter yReport.'-,A
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<br /> IVII<N1;4ART'
<br /> i A'T r 4511 Pacific Avenue,Stockton,California
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<br /> INTRODUCTION',AND_SCOPE OF'-WORK
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<br /> In accordance with the request of Mr Art Wyatt, Advanced GeoEnvironmental, Inc ;'{AGE) has"
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<br /> prepared'tlus Quarterly Report for the site located at 45:11 Pacific Avenue;.Stockton, California(the ;y
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<br /> w site):'The scope ofwork was-to niorntor and sample ground water at the site The location of the site _ '
<br /> is.illu"strated in,Figure l -'Location Map. .Structures, monitoring well and-soil boring Locations are
<br /> illus#rated xn Figure 2= Site Plan'. x
<br /> Site history and aldescnption of pirevious work performed at the site were detailed in the Quarterly
<br /> Report`March 1996 dated 30 April 19' --prepared by
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<br /> Monitoring was .performed sir►,accordance wit h Sari 'Toaquin County Public Health Services_ ;
<br /> .EnvironFnentaVHealth Division PHS`EHD:.and CEiiiral Valle Re conal 1�Jater u'alrt Control
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<br /> (.. )f 1 Y g Q i
<br /> r� . Board (CVRVIWQCB) guidelines for.iri�estigations of underground,'storage tafikl(U5T..sites . -i `^
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<br /> �� 2.0 PROCEDURES`
<br /> 2.'1 DISPOSAL OF SbffiCUTTINGS AND PURGED-GROUND WATER 4 x
<br /> On 3,1 Marc h.1997,-seventeci drums ofp�'i,6 "ously,purged ground water,approximately 8S0 gallons a
<br /> were coilected_,by Nor Cal`Oil of.,Turlock, California; for final disposal at a_ltc enced treatment_ y '_
<br /> 'facility..On the sam"e.ddy `elevph-drums of soil cuttings fromthe:installation of s61 bonrigs qn the ~ #�
<br /> �,- site were transportedlby AGEkto'Forward;'.Inc,in Manteca;California and,disposedA_eapy of the
<br /> . transporter's manifest'are.included-in'Appendix
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<br /> .MONITORING WELI,rPURGE-PROCEDURES
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<br /> On'09:Apri1 1997,:a Solinst water level meter was used'to measure the depth to ground water in each
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<br /> F : ' well relative to-the-top_of the vveli.casirigs. After ground water depth measurements ��ere collected;;
<br /> ntorntorin.g wells MW-4 throughMW-7 acid vapor well VW 1 were-purged.using a PV.0'submersible _ Y
<br /> pump:Motutariz�g wells MW_=1,MW-2=and MW,3-,were not-purgedor-sampled as:ground water,is. .
<br /> ;- .currently. l0 feet to 14 feet above=the tops-d-the screened inteFval in these wells dight gallons of r a: r
<br /> water were evacuated from each moni'tored well,whtle.approhmately 2S gallons wereryremoved''from ..
<br /> �,apor well VW=1 Teiiiperature,pRand conductivity.were
<br /> in
<br /> at 2 :or`3.gallon intervals using : F f
<br /> an ICN4:niode1:S2200 water:AEilyzer Stabilization data and field log's are included rn Appendix B
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