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i� 29'April 2005 ' AGG E-NProject No. 98-0440 4 M Page 5 of.18. report of findings' (Quarterly Report - First"Quarter;2000;,'dated 1,4.'May 2002.) was submitted by AGE to the•SJCEHD: J October.2002 - One•.groundwater,monitoring well wasjinstalled at the site (MW-10) and three ground water monitoring wells'were installed'on'the neighboring"arid down-gradient : property, owned by-'the Hay Grower's Association: A`total-`o#'eight soil samples were `• collected and anfor TPH-g,BTEX,EDB, 1,2-DCA'and the suite of five' fuel additives, including MTBE.No analytes were detected at or above laboratory reporting limits in the soil ' sample analysis. Boring locations are depicted in Figure 2 and analytical results of soil samples are presented in Table 4. A report of findings(Quarterly Report-Fourth Quarter 2002, dated 10 March 2003)was submitted by AGEJo the SJCEHD. mire:h'2004 - Ground water monitoring wells MW-11 and MW=12 were installed on the- neighboring and'down-gradient property; owned by the Hay Grower's Association. A total of four soil•samples.were collected and analyzed for TPH-g and BTEX. No analytes were ' detected at or above laboratory reporting limits in the soil sample analysis.Boring locations are depicted in Figure 2 and analytical results.of soil samples!iare presented in Table 4. A report of findings(Quarterly Report-:First Quarter 2004,�dated.26 July 2004)was submitted . : by AGE to the SJCEHD. Vertical soil lithology and petroleum hydrocarbon impact to soil ilis depicted in cross sectional view. in Figures'4, 5 and 6; petroleum hydrocarbon impact to soil and ground water is depicted,in'plane , view in Figures 7, 8 and 9. 4.0. $ITE CONCEPTUAL MODEL :.Based on the subsurface investigations at•the subject property,a mottled,pale brown and red-brown, stiff,clayey silt/silty clay was encountered from surface grade todepths of approximately 5 feet bsg in each baring.- A pale- to. dark gray-green, silty,.•medium dense, poorly sorted fine sand,.was• encountered-at 10 feet bsk in'all the borin s',on-site with the exception of B7 MW-4 MW-9 and _ MW-10. A pale brown to pale gray, stiff, silty,clay was encountered from 10 feet to 20 feet bsg. A pale brown,medium dense,poorly sorted,silty fine sand,was encountered at depths between24 feet and-25 feet bsg in borings B1,B4, B7,MW-1,MW-6,-MW-7 and MW"-8.'A dark Brown,very stiff, ' silty clay was encountered'at depths greater than 25 feet bsg.' ; The sand at 10 feet bsg#pears,to have a north-northeast to south-southwest orientation;the sand at 20 feet bsg appears to have a east-northeast.to west-southwest orientation and limited lateral extent. _ Advanced-GeoEnvimnmental Inc..