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P <br /> IziGETTLER - RYAN INC. <br /> Argues*5, 1998 <br /> 344r. James Cbincbiolo <br /> Chinaolo Mors <br /> 904 West Benjamin Holt <br /> Stockton,Califomia 95207 <br /> Subject: Monitoring Well Destruction Notification Letter <br /> Former Tosco (Unocal) Serrice Station No. 5421 <br /> 7303 Pacific Avenue, Stockton, California <br /> Mr. Chinciolo: <br /> At the request of 'Tosco Marketing Company (Tosco), Gettler-Ryan Inc. (GR) will be <br /> performing environmental services associated with monitoring well destruction activities at the <br /> above referenced site (Figure I). It has been determined by the San Joaquin County <br /> ' Environmental Health Department (SJCEHD) that all site investigation activities have been <br /> completed and that rase closure has been granted in a letter issued by SJCEHD to the Central <br /> Valley Rgoonal Water Quality Control Board (CVRWQCB) on July 12, 1998. <br /> Woodward Drilling Company (CS7-710079), a Tosco approved contractor, will be responsible <br /> for all well destruction-activities. Well destruction will be performed in accordance with <br /> California Department of Water Resources' California Well Standards (Bullmns 74-81 and 74- <br /> 94) and SICEHD guidelines. Site activities are scheduled for August 27 and 28, 3998. A <br /> total of four wells (MW-1 through MW-4) will be drilled out to their total depth with a hollow <br /> stem auger and backfilled to duu feet.below ground surface with neat cement using a tremie <br /> pipe and plump. The upper duee feet will be backfilled with native materials. <br /> 6747 Sierra Court , Suite J - Dublin , California 94568 - (925) 559 -7555 <br /> eie/Boo'39dd CCVC89b602I 01 7NI wore 22:8I 96, 5 gnu <br />