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GENESIS ENGINEERING&REDEVELOPMENT Table A-7 DePaoli Property Historic Analytical Data On-Site Groundwater Analytical Results (1985-1987) Sample Sample Arsenic Barium Cobalt Chromium Copper Iron Mercury Magnesium Manganese Nickel Lead Zinc Chromium(III) trans-1,2- Location Date (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) DCE (M91L) M-7 12/5/85 0.028 0.03 0.06 0.027 0.087 NR <0.001 NR NR 0.26 <0.05 0.08 NR NR M-7 1/9/86 0.023 0.16 0.16 0.04 0.08 NR <0.001 NR NR 0.49 <0.01 0.19 NR NR M-7 9/9/86 <0.01 <0.5 <0.5 0.092 0.7 N R <0.002 N R N R 0.4 <0.05 0.3 N R N R M-8 8/9/85 <0.004 0.14 <0.1 <0.02 <0.02 NR <0.001 NR NR <0.05 <0.05 0.06 NR NR M-8 1/9/86 <0.004 0.24 <0.001 <0.02 <0.02 NR <0.001 NR NR <0.05 <0.01 0.08 NR NR M-8 9/9/86 <0.01 <0.5 <0.5 0.029 <0.1 NR <0.002 NR NR 0.1 <0.05 0.1 NR NR M-8 10/22/87 <0.01 <0.5 <0.05 <0.01 <0.1 12.8 N R 38 1.7 <0.01 <0.005 <0.1 N R N R M-10 8/9/85 0.004 0.1 <0.1 <0.02 <0.02 NR <0.001 NR NR <0.005 <0.05 0.04 NR NR M-10 8/9/85 0.004 0.12 <0.01 <0.02 <0.02 NR <0.001 NR NR <0.005 <0.01 0.04 NR NR M-10 1/9/86 <0.01 <0.5 <0.5 0.037 <0.1 NR <0.002 NR NR 0.1 <0.05 0.1 NR NR OH-2 8/9/85 NR NR NR NR NR NR NR NR NR NR NR NR NR 1.6 ESL(mg/L) Shallow Soils(<3m bgs) Groundwater is not a 5.00E+01 5.00E+01 5.00E+01 5.00E+01 5.00E+01 NL 5.00E+01 NL NL 5.00E+01 5.00E+01 5.00E+01 5.00E+01 2.60E+00 current or potential drinking source NOTES: trans-1,2-DCE=trans-1,2-Dichloroethene "NR"Data Not Reported "<" Indicates the analyte was less than the listed Analytical Laboratory Reporting Limit "ESL"refers to Screening For Environmental Concerns at Sites with Contaminated Soil and Groundwater, Interim Final-November 2007(California Water Quality Control Board) "NL"Value Not Listed Site Investigation Work Plan DePaoli Property November 14,2007 2 of 2