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DelMonte Plant #3 TEL :408-291-2484 Nov 18 '97 10 :21 No .014 P .04 <br /> Del Monte Foods/Parmaceast Request for Proposal for Data <br /> Summary and Visualization for Disco UST Site, Stockton, CA. <br /> 1.0 Introduction <br /> The Disco former UST site is located in Stockton,California at the intersection of Myrtle and <br /> Filbert Streets. A former service station at this location had three MAO gallon gasoline <br /> tanks and associated piping which are the suspected source of hydrocarbon constituents in <br /> soil and groundwater.The USTs were removed in 1985 and underground piping was <br /> removed in 1992.Additional investigation and remediation activities have been performed <br /> at the Disco site since 1991.To support the San Joaquin County Public Health Services in <br /> evaluating the existing information,graphical and tabular summaries of data fron,previous <br /> investigations is required. Previous investigations and types of information obtained are <br /> summarized in the following table.Data are included as attachments to this RPP. <br /> Information is available in electronic format where indicated. <br /> Invest Hon Data Obtained to be Summarized <br /> 1. Tank excavation a) locations of USTs,piping and tank excavation soil sampling <br /> (1985) locations(schematic) <br /> b) chemical analysis of liquid in tanks <br /> c chemical anal".is of tank pit soil samples <br /> 2. Underground pipe a) locations of LIST,-,piping and piping soil sampling locations <br /> removal(1992) (figure) <br /> b chemical analysis of soil samples. <br /> I Remedial a) soil gas survey and soil boring locations(figure)and chemical <br /> Investigation(1992) analytical results for soil gas survey <br /> and Problem b) monitoring well locations(figure available in CADD format) <br /> Assessment Report and c) chemical analytical results for soil sampling and soil sieve <br /> Final Remediation Plan analyses <br /> (1995) d) locations of 4 air sparging/soil vapor extraction well clusters and <br /> 2 piezometer clusters(figure available in CADD format) <br /> e) well completion logs for 24 wells/piezometers <br /> f) sail boring logs for 1.6 locations <br /> g) well survey data <br /> h) historical groundwater elevation data <br /> i) pump test drta <br /> 4.Quarterly a) quarterly groundwater monitoring elevation data.Available in <br /> monitoring (1991 - electronic format(excel). <br /> 4/97) b) quarterly groundwater cheinical analytical data for TPH-gas, <br /> STEX,lead and MTBE.Available in electronic format(excel). <br /> c) Analytical data for natural attenuation parameters <br /> d) Groundwater elevation and chemical analytical data for 8/97 for <br /> gasoline constituents and additives.Not tabulated. <br /> e) Soil Vapor Extraction Data <br /> a <br /> 11/17/87 LION 14:24 ITI/RI NO 62481 <br />