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Table 4 <br /> Groundwater Analytical Data-Total Petroleum Hydrocarbons and BTEX <br /> South Shore Parcels-Parcel 2A and Adjacent Areas <br /> West Weber Avenue and North Lincoln Street <br /> Stockton, California <br /> Depth <br /> Ethyl- <br /> Sample (feet, Date TPHg TPHd TPHk TPHo Benzene Toluene benzene Xylenes <br /> ID b s) Sampled (mg/1) (ma/1) (mg/1mg/l) mg/1)( m /Im /I m /I <br /> A Zone Wells-Area 2Al2B and Ad cent Areas cont. <br /> 2AMW-15(cont.) --- 12/5/02 <0.05 0.11 (0.072) -- <0.05(<0.05) <0.0005 <0.0005 <0.0005 <0.001 <br /> --- 3/5/03 0.57 0.07(0.072) - <0.05(<0.05) <0.0005 0.012 0.066 0.191 <br /> -- 5/8/03 <0.05 0.47(<0.05) - 0.0544(<0.05) <0.0005 <0.0005 <0.0005 <0.001 <br /> --- 8/19/0312 0.069 0.22(<0.05) - 0.055 B(<0.05) <0.0005 <0.0005 0.0025 11.0067 <br /> -- 11/11/03 i2 c0.05 0.35c0.05 <br /> ( ) - <0.05(<0.05) <0.0005 <0.0005 <0.0005 <0.001 <br /> --- 02/17/04 12 <0.05 0.38(0.085) -- 0.058(<0.05) <0.0005 <0.0005 <0.0005 <0.001 <br /> -- 6/2/04 12 <0.05 0.46(<0.05) --- 0.17 1s(<0.05") <0.0005 <0.0005 <0.0005 <0.001 <br /> --- 9/7/04'2 Not Sampled Due to Transfer of Environmental Consultant Management Responsibilities <br /> 12/6/04 23 <0,05 0.17 -- <0.10 <0.0005 <0.0005 0.0027 <0.001 <br /> 23 <br /> -- 2/2/05 <0.05 0.16 -- <0.05 <0.0005 <0.0005 <0.0005 <0.001 <br /> --- 5/25/05 <0.05 0.17 -- <0.05 <0.0005 <0.0005 <0.0005 <0.001 <br /> --- 8/24/05 <0.05 0.19 - <0.05 <0.0005 <0.0005 <0.0005 <0.0015 <br /> -- 11/17/05 <0.05 0.20 - <0.05 <0.0005 <0.0005 <0.0005 <0.0015 <br /> --- 2/14/06 <0.05 0.14 - <0.05 <0.0005 <0.0005 <0.0005 <0.0015 <br /> --- 5/15/06 <0.005 0.17 - <0.05 <0.0005 <0.0005 <0.0005 <0.0015 <br /> -- 8/14/06 <0.05 0.13 - <0.05 <0.0005 <0.0005 <0.0005 <0.0015 <br /> --- 11/14/06 <0.05 0.15 - <0.05 <0.0005 <0.0005 <0.0005 <0.0016 <br /> --- 2/5/07 <0.05 0.22 -- <0.05 <0.0005 <0.0005 <0.0005 <0.0015 <br /> --- 5/7/07 <0.05 0.14 -- <0.05 <0.0005 <0.0005 <0.0005 <0.0015 <br /> --- 7/2/07 <0.05 0.15 --- <0.05 <0.0005 <0.0005 <0.0005 <0.0015 <br /> --- 10/8/07 <0.05 0.19 0.09931 <0.0005 <0.0005 <0.0005 <0.0015 <br /> 1/21108 <0.05 0.16 <br /> MW-18 --- 4/15/03 4.2 5.30 - 0.099° 0.007 0.0018 0.0013 0.0089 <br /> --- 5/7/03 4.8 5.80 - 0.28" 0.0041 0.0019 0.0017 0.009 <br /> --- 8/20/03 5.4 3.70 - 0.181 0.0045 0.0017 0.0017 0.0092 <br /> -- 11/12/03 4.9 4.10 - 0.20° 0.005 0.002 0.0023 0.0095 <br /> -- 2/19/04 4.9 3.00 - 0.154 0.0042 0.0017 0.0016 0.0071 <br /> 6/2/04 5.0 3.00 --- 0.14 " 0.0043 0.0015 0.0013 0.0067 <br /> -- 9/9/04 5.3 2.20 --- 0.1011 0.0047 <0.002 <0.001 0.0062 <br /> --- 12/10/04 22 4.5 2.50 -- 0.12° 0.0084 0.0019 0.0022 0.0076 <br /> --- 2/25/05 4.3 1.40 - <0.05 0.0053 0.0016 0.0015 0.0065 <br /> -- 5/27/05 4.7 1.20 - <0.05 0.0041 0.0013 0.0014 0.0058 <br /> -- 8/24/05 4.6 1.90 - <0.05 0.0036 0.0012 0.0017 0.006 <br /> -- 11/16/05 4.6 <2.00 9 -- 0.061 2 0.0033 0.0012 0.0014 0.0058 <br /> --- 2/16/06 3.6 <1.5 9 -- <0.05 0.0024 0.0014 0.0014 0.0057 <br /> -- 5/19/06 4.4 1.60 - <0.05 0.0029 0.0015 0.0016 0.0057 <br /> <1.Sa <0.05 0.0030 0.0023 0.0016 0.0062 <br /> I:\Tidewateotocklon(Parcel 2A-0415)7ables\QMR TableM2008\1 Q08\Parcel2A(Tables 2,4,5,6,7)Histont Tables 1Q08.xls 0 <br /> Page 10 of 44 <br />