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KLEINFELDER <br /> was analyzed for the first time in January 2001 was detected In the groundwater sample collected <br /> from MW-1 at 3 3 mg/l <br />' The 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 vicinity of the subject site, including a sensitive receptor survey and estimates <br /> as to the amount of contamination in soil and groundwater <br /> ' At the request of General Mills, Kleinfelder installed three additional monitoring wells In the <br /> vicinity of the UST in January 2002 (MW2, MW-3 and MW4) During the installation, soil <br /> samples were collected from the borings for laboratory analysis None of these samples contained <br /> detectable concentrations of TPH-G, TPH-D, nor BTEX, at or above laboratory reporting limits <br /> ' Four quarterly sampling events were conducted in 2002 with groundwater samples collected from <br /> four monitoring wells MW-1 through MW-4 Monitoring wells MW-2, MW-3 and MW-4 were <br /> installed as perimeter monitoring wells MW-2 and MW-3 were installed downgradient of the UST <br /> ' area and MW-1 was installed upgradnent of the UST area Fuel constituents TPH-D continued to be <br /> present in MW-1 including TPH-G and ethylbenzene and total xylenes at relatively lower <br /> concentrations (See Table 2) Floating product was noted in September 2002 in monitoring well <br /> ' MW-1 A trace concentration on TPH-D was detected once (June 2002) in downgradient well <br /> MW-2, but has not been detected in any subsequent sampling events <br /> The following Sections document the findings from the second quarter 2003 sampling event <br /> 1 <br /> 1 <br /> 1 <br /> 28209 T031 STO3R1312 <br /> Page 5 of 1 1 <br /> OO 2003 Klemfetder,Inc September 22,2003 <br />