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tQuarterly Report - Second Quarter 2006 <br /> • FIVE STAR MARINA <br /> ' 345 Yosemite Street, Stockton, Cahfornia <br /> ' 1.0. INTRODUCTION <br /> At the request of Mr Terry McDonald of Five Star Marina, Advanced GeoEnvironmental, Inc <br /> ' (AGE) has prepared this quarterly report for the property located at 345 Yosemite Street, Stockton, <br /> California (site) The scope of work included the performance of a quarterly ground water <br /> monitoring event,purge water disposal, and preparation of this report The location of the site and <br /> ' the surrounding area is illustrated on Figure 1, structures, former underground storage tank (UST) <br /> locations, and soil boring and monitoring well locations are illustrated on Figure 2 <br /> ' Site history and findings from previous investigations and monitoring events are provided in <br /> Appendix A The results of previous ground water monitoring events are included in the tables of <br /> tthis report <br /> ' 2.0. PROCEDURES <br /> This investigation was conducted in accordance with Central Valley Regional Water Quality Control <br /> ' Board(CVRWQCB)and San Joaquin County Environmental Health Department(EHD)guidelines <br /> for the subsurface inti esugation of underground storage ianik (UST) sites and sampling of ground <br /> eater monitoring wells respc(,tivel) <br /> 2 l WI l l MONFI-ORiN(, ANI) I VAC t A I ION <br /> ' On 07 April 2006 a Solinst eater level mctcr was used to mcasurL the depth to ground water in <br /> monitoring wells MWA through MW-5 and MW-7 through MW-9 relative to the tops ofthe well <br /> ' casings After the depth to groundwater measurements were collected casing water in the NA elk was <br /> evacuated using dedicated disposable plastic bailers Approximately 5 5 to 6 5 gallons of water were <br /> evacuated from each well, Lqui\alent to three casing eater volumes per well <br /> ' l em eraturc H and conducti-,it of-the purged k� ater \N ere. measured for stabilisation at regular <br /> p p y P g <br /> ' inter\als using an Calton x%ater anal ler I u.ld data lags are pro,,ivied in Appendiv B Purged water <br /> vya5 containcri/ed in properly labeled I)epartment of I ran,,portation (W)I )-approN c.d 55-gallon <br /> di um,, and .cored on- ,itc pending propei dispc)5a1 <br /> -) -1 C 0I I I ( l ION. A \i) ANA] N`L)I5 ()]- (,Rot t M) NV 11 I It I � <br /> ' �k dkr 5amplcs \SLI L-ciliLU«d lroni Laefi monitoring\\ell utiirsp LICLII _ated di5po,,ahlL Dld"ilL bL111Lr" <br /> at(r ollovvino ihc- �vc.Ik o achic� �- .i i111i111tfill 80"0 ]L.-O%lA� 01 ih� v',itLi %c,Iun � Ili, <br /> trhar�<<J .«�n4+i un,n ,itlug <br />