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k'q KLEINFELDER <br /> poPurgeable hydrocarbons as referenced to gasoline were also analyzed during the January 2001 <br /> sampling event at the request of San Joaquin County Public Health Services, Environmental <br /> ' Health Division(PHS/EHD) <br /> Total petroleum hydrocarbons as referenced to diesel (TPH-D) was detected in the groundwater <br /> samples collected from MW-1 during the October 2000 and January 2001 sampling events at <br /> concentrations ranging from 14 4 to 18 6 mg/l Benzene, toluene, ethylbenzene, and total xylenes <br /> (BTEX) were not detected from groundwater samples collected during these two sampling events <br /> Total petroleum hydrocarbons as referenced to gasoline (TPH-G), which was analyzed for the first <br /> time in January 2001 was detected in the groundwater sample collected from MW-1 at 3 3 mg/l <br /> rThe Central Valley Regional Water Quality Control Board (RWQCB) and PHS/EHD requested <br /> continued quarterly groundwater sampling, and a workplan to address the extent of the <br /> contamination in the vicunty of the subject site, including a sensitive receptor survey and <br /> estimates as to the amount of contamination in soil and groundwater <br />' Kleinfelder submitted a proposal (File No 20-YPl-477 dated, March 1, 2001) to General Mills to <br /> address the concerns stated by the RWQCB and PHS/EHD Klemfelder proposed installation of <br /> three additional monitoring wells, soil and groundwater sampling and a sensitive receptor survey <br />' The following details Kleinfelder's findings based on the proposed scope of work <br />' 20-1417-16 E04 I ST02R038 <br /> Page 6 of 18 <br /> 0 2002 Kleinfelder,Inc June 7,2002 <br />