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' Manteca Unified School District <br /> Soil&Groundwater Investigation eport <br /> Page 3 <br /> Table of Laboratory soil&domestic well Sample Results November 29,2001 <br /> Sample I D Diesel Benzene Toluene E-Benzene Xylenes <br /> MW-1-15' ND ND ND ND ND <br /> MW-1-20' ND ND ND ND ND <br /> MW-1-30' ND ND ND ND ND <br /> MW-2-15' ND ND ND ND ND <br /> MW-2-20' ND ND ND ND ND <br /> MW-2-30' ND ND ND ND ND <br /> MW-3-15' ND ND ND ND ND <br /> ' MW-3-20' ND ND ND ND ND <br /> MW-3-30' ND ND ND ND ND <br /> Domestic Well �N`11) ND ND ND ND <br /> ND=Non Detect <br /> 1 <br /> All wells were developed, depth to water measurements collected, and groundwater <br /> ' samples collected for laboratory analysis The wellheads were surveyed to a known <br /> elevation and the direction and magnitude of groundwater flow calculated Hydrocarbon <br /> ' contaminants were reported in all three wells in trace concentrations A compilation of <br /> the laboratory results for the groundwater samples is presented below <br /> ' Table of Laboratory(monitoring wells Sample Results December 17,2001 <br /> Sample I D Diesel Benzene Toluene E-Benzene Xylenes <br /> MW-1 ND ND 0 5 ND 10 <br /> t MW-2 Nil ND 109 1 ND 13 <br /> MW-3 ND 0 3 1 11 0 4 3 0 <br /> ND=Non Detect <br /> Groundwater Elevation-12-17-01 <br /> Well lCollar Elevation I DTW I GW Elevation <br /> MW-1 1988 1757 231 <br /> MW-2 2034 1755 279 <br /> ' MW-3 21 02 1816 286 <br /> M J Kloberdanz & Associates conducted a survey of municipal, domestic, agriculture, <br /> industry and other water wells within a 2000-foot radius of the former diesel tank The <br /> survey involved contacting the Water Resources Board and a physical search of the area <br /> Construction details are provided for the wells on record at the Department of Water <br /> Resources (Appendix B) The majority of the identified wells are located outside of the <br /> ' 2000-foot radius-(Figur_ e 2) Wells observed during the 2000 foot radius survey include <br /> _an imgation w11Z�fee south- f the r tank a-domestic well_l --feet-south of � <br /> the former tank, a well at the bus maintenance yard (1200 feet south of the tank site), and �N <br /> ' an abandoned production well at the former magnesium plant about 1500 feet west of the <br /> site <br /> • <br />