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<br /> Historic Soil Gas Analytical Data
<br /> Parcel 2A and Adjacent Properties
<br /> West Weber Avenue and Lincoln Streets
<br /> Stockton, California
<br /> EPA Methods TO-3 GC/FID TO-15 GC/MS Full Scan ASTM D-1946
<br /> GC/TCD
<br /> EPA Methods' 82608 8260B
<br /> TPH C2+HC's Fuel Oxygenates Natural Gas
<br /> BTEX SVOCs Y9 Analysis
<br /> (Ref.Gas)
<br /> Casing Length Dilution Ethyl-
<br /> Sample or Depth(bgs) Factor Date TPH9 Benzene Toluene benzene Total Xylenes Naphthalene MTBE DIPE ETBE TBA TAME Methane Gas
<br /> ID (feet) TO-15 Sampled (ug/m') (ug/m') (u9/m3) (ug/m' (ug/m3) (ug/m) u9/m') (u9/m3) Milan) (u m) ug/m') ppmV
<br /> Area 2A/2B And Adjacent Properties
<br /> All 7.6 1.49 7/19/2005 1 46,000 6.4 8.1 13.2 4.1 116 12.7 112 '12 <9 112 27
<br /> Paired Well 1 9/16/2005 2 730,000 140 -100 '100 -100 -100 -100 -100 -100 -1,000 -100 15,000
<br /> ( ) 1 10/17/2005 2 2,100,000 <100 <100 -100 100 -100 <100 <100 -100 -1,000 <100 11,000
<br /> 1 11/18/2005 2 6,700 <100 <100 <100 110 <100 -100 <100 -100 <1,000 -100 1,600
<br /> 1 2/13/2006 2 84,000 -100 <100 <100 -100 -100 <100 -100 -100 -1,000 <100 <1,000
<br /> 1 5/8/2006 2 1,300,000 <100 110 <100 110 -100 <100 -100 't00 -1,000 -100 -1,000
<br /> 1 8/15/2006 2 1,700,000 <100 -100
<br /> -100 -100 -100 -100 -100 <100 <1,000 -100 18,000
<br /> 1 11/1312006 2 34,000 -100 -100 -100 -100 -100 -100 -100 -100 -1,000 -100 -1,000
<br /> 1 2/9/2007 2 100,000 <100 <100 <100 -100 -100 -100 <100 <100 '1,000 -100 21,000
<br /> 1 5/11/2007 2 110,000 <100 <100 -100 <100 -100 <100 <100 <100 <1,000 <100 <1,000
<br /> 1 7/20/2007 2 13,000 <100 <200 -100 <100 <100 <100 -100 <100 <1,000 -100 •1,000
<br /> 1 10/12/2007 2 <5,000 -100 <200 <100 <100 -100 <100 <100 <100 <1,000 <100 -1,000
<br /> 1 2/15/2008 2 <10,000 <100 <200 <100 <100 -100 -100 <100 <100 -1,000 <100 -1,000
<br /> 1 4/25/2008 2 <5,000 <100 <200 <100 <100 <100 -100 <100 <100 -1,000 <100 <1,000
<br /> 1 7/25/2008 2 -10,000 <100 <200 <100 <100 <100 <100 <100 -100 <1,000 -100 -1,000
<br /> 1 10/24/2008 2 <10,000 <100 <200 <100 -100 -100 <100 <100 -100 <1,000 -100 <1.000
<br /> 1 2/20/2009 2 -10,000 -100 <200 <100 <100 <100 000 <100 -100 -1,000 <100 <1,000
<br /> 1 6/2/2009 2 <5,000 -100 <200 <100 -100 -100 -100 -100 <100 -1,000 <100 <1,000
<br /> 1 8/7/2009 2 <10,000 <100 -200 <100 <t00 <100 -100 -100 <100 -1,000 <100 <1,000
<br /> 1 10/30/2009 2 -10,000 -100 <200 <100 <100 <1D0 -100 -100 <100 <1,000 '100 0,000
<br /> 1 2/19/2010 2 <10,000 <100 1200 <100 -100 -100 <100 <100 <100 <1,000 <100 NS
<br /> 1 5/7/2010 2 <10,000 -100 <200 <100 -100 <100 <100 <100 <100 0,000 <100 -1,000
<br /> 1 7/23/2010 2 <10,000 -100 <200 -100 -100 -100 -100 <100 -100 <1,000 -100 <1,000
<br /> 1 10/22/2010 2 <10,000 <100 -200 -100 <100 -100 <100 <100 <100 -1,000 1'[00 <1,000
<br /> 1 1/28/2011 2 <10,000 -100 <200 <100 -100 <100 <100 -100 <100 -1,000 -100 <1,000
<br /> 1 4/28/2011 2 -10,000 <100 -200 -100 -100 -100 -100 -100 <100 <1,000 <100 <1,000
<br /> 1 7/21/2011 2 -10.000 -100 <200 -100 -100 <100 <100 -100 <100 -1,000 <100 -1,000
<br /> 1 1 10121/2011 1 2 1 <10 000 1 -100 -200 000 <100 <100 -100 <100 <100 -1,000 't00 <1,000
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