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event MW-2 , which was ND in July, measured TEPH as motor oil at <br /> 57 0 ug/L MW-4 revealed TEPH as diesel at 6900 ug/L an July, <br /> and 2020 ug/L in December <br /> Monitoring well #5, (Nomellani) - This well was not included an <br /> the July sampling event, and the results of water analyses for <br /> that period are not known The well was sampled during the <br /> December sampling & will be included an future quarterly <br /> monitoring events The results of water analyses are included <br /> with the four wells placed in July under WJH workplans As <br /> summarized on TABLE I, levels of BTEX & TPHg are very high <br /> A review of the maps showing approximate lanes of equal <br /> concentration of BTEX & TPHg, (PLATES II through PLATE VI, ) <br /> strongly suggest that the gasoline components measured from MW-4 <br /> have migrated from the ad]acent Nomellini site to the east, and <br /> are not caused by the three UST' s recently removed from the <br /> Independent Trucking property However, there may be another <br /> source of contamination in the vicinity of MW-1, which has shown <br /> some benzene, toluene, & xylenes an water samples The recently <br /> approved WJH workplan is designed to identify the existence of <br /> . such a possible source <br /> The next sampling event is due in March, at as planned to <br /> incorporate the results of the next phase of the work, scheduled <br /> to begin in January, 1996 , in that quarterly report <br /> Sincerely <br /> Wm J�) H nter & AssociatesU� <br /> Dec er 28 , 1995 <br /> cc Elizabeth Thayer <br /> W W Males <br /> R Lautze NO $'0 <br /> Linda Turkatte, San Joaquin Co EHD �l9�OFCALk����� <br /> Independent Trucking <br /> 3 <br />