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TABLE 1 SUMMARY OF ANALYTICAL RESULTS - SOIL Edison High School Stockton Unified School District Page 1 ! (Reported in ppm) t Sample Date Location De th Benzene Toluene Ethyl jXylenes. TPHd ' ID { Benzene 014 11/19/90 Corner of Tank 125 <0.001 <0.001 <0.001 <0.001 9.9 015 11/19/90 Corner of Tank 125 <0.001 <0.001 <0.001 <0.001 <1.0 016 11/21/90 Corner of Tank 13 <0.001 <0.001 <0.001 <0.001 20 017 11/21/90 North Side of Tank 125 <0.001 <0.001 <0.001 <0.001 290 018 11/21/90 Piping #1 4. <0.001 <0.001 0.04 0.03 <1.0 019 11/21/90 Piping#2 3.5 <0.001 <0.001 <0.001 <0.001 <1.0 020 11/21/99 Piping#3 4. <0.001 <0.001 <0.001 <0.001 <1.0 021 11/21/90 Piping#4 4. <0.001 <0.001 <0.001 <0.001 <1.0 022 11/21/90 Piping#5 4.5 <0.001 <0-001 <0.001 <0.001 <1.0 023 11/21/90 Piping#6 4. <0.001 <0.001 <0.001 <0.001 <1.0 024 11/21/90 Piping#7 4.3 <0.001 <0.001 <0.001 <0.001 <1.0 025 12/06/90 Center of Tank 140 <0.001 <0.001 <0.001 <0.003 430 SUSDIEHS-S61-15.0 02/16/99 North Side of Former Tank 15 0 70.0050 <0.0050 70.0050 70.0050 3.8 ° SUSDIEHS-SB1-20.0 02/16/99 North Side of Former Tank 20.0 <0.0050 <0,0050 <0.0 50 <0.0050 1.0 1'2 SUSDIEHS-SB1-30.0 02/16/99 North Side of Former Tank 30.0 X0.0050 <0.0050 <0.0 50 <0.0050 <1.0 ry SUSDIEHS-SB2-15.0 02/16/99 Center of Former Tank 15,0 <0.0050 <0.0050 <0.0 50 <0.0050 7.91 SUSDIEHS-SB2-20.0 02/16/99 Center of Former Tank 20,0 <0.0050 <0.0050 <0.0 50 <0.0050 71.0 SUSDIEHS-SB2-30.0 02/16/99 Center of Former Tank 30,0 <0.0050 <0.0050 <0.0 50 <0.0050 71.0 Notes: ppm denotes parts per million (equivalent to milligrams per kilogram < denotes not detected at or above Stated Method Detection Limit TPHd denotes Total Petroleum Hydrocarbons as diesel, analyzed by EPA Methods 5030/8015 1 denotes unidentified hydrocarbon. Chromologram pattern does not match that of a diesel standard. 2 denotes a discrete peak (C24) observed on chromatogram. Grp WA1729ZTABLEW iItab