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� <br /> ' 1 I a Illi f 1 1 <br /> Quarterly Report, ' Third Quarter 2003 <br /> RAINWATER CAR WASH <br /> ' 420 West Yosemite Avenue, Manteca, California <br /> w I <br /> J.0. INTRODUCTION AND SCOPE OF WORK I <br /> At the request of Mr 'Phil Elder, Advanced GeoEnvironmental, Inc (AGE) has prepared,this <br /> ' quarterly report for 420 West Yosemite Avenue (the site), ,Manteca,, California The report <br /> documents procedures and results for ground water monitoring and interim ground water remediation <br /> performed at the site between June 20031and September 2003 (third quarter) The site setting is <br /> ' illustrated on Figure 1, site structures and monitoring well locations are depicted on Figure 2 <br /> I I n <br /> h <br /> ' The enclosed ieport was prepared in accordance with guidelines established by the California <br /> Regional Water Quality Control Board (RWQCB) for investigation of underground storage tank <br /> (UST) sites Background information and a description of prior investigations at the site were <br /> ' included in Appendix A of Quarterly Report- Third Quarter 2002, dated 06,December 2002 <br /> '1 The objectives the of third quarter�investigations were to characterize, assess and monitor dissolved <br /> petroleum hydrocarbons and methyl tert-butyl ether (MTBE) concentrations in ground water, to <br /> characterize ground water flow direction and gradient and to continue ground water pump-and-treat <br /> . interim remediation at the site The following is a brief summary of third quarter site assessment and <br /> interim ground water remrediatiori activities performed at the site <br /> Between 19 June 2003E and 10 September 2003 - Continued pump-and-treat'interim <br /> I hs remediation utilizing on-site extraction well EW-1, discharged approximately 218,888' <br /> gallons of extracted and treated ground water into City of Manteca sanitary sewer system t� <br /> I Irl�I <br /> ' •; On 19 June'2003 -AGE performed a monthly monitoring event at the ground water pump- yl,;Ir <br /> and-treat interim remediation system <br /> i On I I July 2003 -AGE performed a monthly monitoring event at the,ground water pump- ` <br /> and-treat'interim'remediation system E <br /> �d On 14 August 2003-AGE'performed a monthly monitoring event at the ground water pump- <br /> ' and-treat interim remediation system <br /> € s II •; 18, 19 ,& 20 August 2003 - AGE performed a quarterly ground water monitoring event I <br /> �II 1�(second,quarter 2003) at wells MW-1 through MW-13 <br /> ` 'On 10 September 2003 -AGE performedlra monthly momtonng event at the groundwater <br /> pump-and-treat interim remediation system' k I <br /> hr <br /> n I I fl <br /> f I <br /> .I I fff i I I 1 y I <br /> I I I I I I I , ti sl <br /> III rr i l , I Advanced GeoEnvironmental,inc `I <br /> ur r I h <br />