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' k" KL ElNFELDER <br /> 1 EXECUTIVE SUMMARY <br />' This report summarizes Klemfelder's groundwater sampling conducted for the third quarter, 2002 <br /> at the General Mills Facility located at 2000 West Turner Road in Lodi, California Mr Wade <br /> Broughton retained Kleinfelder to conduct the sampling activities based upon Kleinfelder's <br />' proposal titled "Proposal/Cost Estimate, Groundwater Monitoring and Reporting, General Mills <br /> Facility, 2000 West Turner Road, Lodi, California," dated June 19, 2002 <br /> Groundwater samples were collected from each of the four monitoring wells, MWs-1, 2, 3, and 4 <br /> on September 27, 2002 The groundwater samples were analyzed for extractable hydrocarbons <br /> (TPH-D) and purgeable hydrocarbons as referenced to gasoline (TPH-G), benzene toluene, <br />' ethylbenzene, and total xylenes (BTEX), and for five oxygenates (TBA, MTBE, DIPE, ETBE, <br /> and TAME) <br />' No product or sheen was observed in the groundwater samples collected from MWs-2, 3, and 4, <br /> during this sampling event Approximately four inches of product and a strong petroleum like <br /> odor were noted in the initial purge water from MW-1 <br />' Groundwater elevations ranged from 1 34 feet at MW-2 to 2 65 feet at MW-4 The groundwater <br /> flow direction was to the southwest at an approximate gradient of 0 004 ft/ft This groundwater <br /> flow direction and gradient is generally consistent with previous quarterly sampling events (See <br /> Table 1) <br />' The analytical results for the groundwater samples collected are summarized in Table 2 and <br /> Section 5 of this report Laboratory data sheets are included as Appendix C Total petroleum <br /> hydrocarbons as referenced to diesel (TPH-D) were detected in the groundwater samples <br />' collected from MW-1 at a concentration of 350 mg/1 Total petroleum hydrocarbons as <br /> referenced to gasoline (TPH-G) were also detected in the sample from MW-1 with a <br /> concentration of 6 4 mg/l Petroleum constituents ethylbenzene and total xylenes were also <br />' detected in groundwater collected from MW-1 at concentrations of 2 1 microgram / liter (µg/1) <br /> and 1 5 µg/1, respectively No petroleum constituents were detected in the groundwater samples <br />' collected from perimeter wells MW-2, MW-3 or MW-4, during this third quarter 2002 sampling <br /> event For a complete summary of our findings including conclusions and recommendations <br /> please refer to Section 6 of this report <br />' A copy o f t his r eport s hould b e s ubmitted t o t he S an Jo aqum C ounty P ublic H ealth S ervices <br /> Department, Environmental Health Division (PHS/EHD) and the State of California, Central <br />' Valley Regional Water Quality Control Board (CVRWQCB) for their review and comment <br /> This report, and the conclusions and recommendations presented, are subject to the "Limitations" <br /> presented in Chapter 7 of this report Anyone other than the client, who wishes to use this <br /> document must complete the "Application for Authorization to Use" which is included as <br /> Appendix D to this report <br />' 18748 T02/5TO2R795 <br /> Page 1 of 11 <br />' ©2102 Klomfeldor,Inc December 3, 2002 <br />