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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 /> UMS
<br /> EPA Methods 82608
<br /> TO-3 GC/FID TO-15 G8260 Full Scan ASGTCD
<br /> C/D-1946
<br /> EPA Methods' 82608
<br /> Natural Gas
<br /> TPH C2+HC's gTEX SVOCs Fuel Oxygenates Analysis
<br /> (Ref.Gas)
<br /> Casing Length Dilution Ethyl-
<br /> Sample or Depth(bgs) Factor Date TPHg Benzene Toluene benzene Total Xylenes Naphthalene MTBE RIPE ETRE TBA TAME Methane Gas
<br /> ID feet TO-15 Sampled (ug/m') (ug/m') (ug/m) (ug/m3) (u /m3) (u /M') (ug/m3) (ug/m) ( m' (ug/m') (u /m3) ppmV
<br /> Area 2Al2B And Atljacenl Properties
<br /> Trip Blank --- 1 7/19/2005 1 1100 11.6 11.9 12.2 <2.2 110 11.8 <8.4 18.4 18.1 18.4
<br /> 1 9/16/2005 2 <5,000 <100 <100 1100 100 1100 1100 1100 <100 <1,000 <100
<br /> 1 11/13/2006 2 <5,000 -100 <100 <100 <100 1100 <100 1100 1100 <1,000 1100 <1,000
<br /> 1 10/17/2005 -5,000 <100 1100 <100 <100 NS 1100 1100 <100 <1,000 1100 <1,000
<br /> <6,000 0100 1100
<br /> 1100 <100 <100 -100 <100 <100 <1,000 <100 <1,000
<br /> 1 5%2007 2 -5,000 <100 1100 -100 1100 1100 <100 <100 <100 <1,000 Goo -1,000
<br /> 1 7/20/2007 2 <5,000 <100 <200 <100 1100 <100 1100 1100 <1o0 <1,000 <100 -1,000
<br /> 1 10/12/2007 2 <5,000 <100 <200 -100 <100 1100 1100 <100 <100 <1,000 <100 <1,000
<br /> 1 2/15/2008 2 <10,000 <100 <200 <100 1100 <100 <100 1100 1100 <1,000 1100 -1,000
<br /> 1 4/2512008 2 -5,000 -100 <200 -100 -100 <100 <100 <100 <too -1,000 <100 11,000
<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 <100 -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 0,000
<br /> 1 10/30/2009 2 <10,000 <100 <200 <100 -100 -100 <100 -100 <100 <1,000 -100 <1,000
<br /> 1 2/19/2010 2 <10,000 -100 -200 -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 -1.000 -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 <100 <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 0,000
<br /> 1 10/21/2011 2 <10,000 <100 <200 <100 -100 <100 -100 <100 <100 -1,000 -100 •1,000
<br /> 1 1/27/2012 2 <10,000 <100 <200 <100 -100 <100 -100 -100 <100 <1,000 <100 <1,000
<br /> 1 4/23/2012 2 <10,000 -100 -200 <100 -100 <100 <100 -100 <100 -1,000 <100 -1,000
<br /> 1 7/20/2012 2 <10,000 <100 <200 -100 <100 -100 -100 -100 <100 <1,000 -100 <1,000
<br /> 1 10/19/2012 2 <10,000 <100 -200 <100 -100 -100 <100 <100 <100 <1,000 <100 -1,000
<br /> 1 1/30/2013 2 <10,000 -100 -200 <1o0 <100 -100 <100 -100 <100 <1.000 <100 <1,000
<br /> 1 4/19/2013 2 <10,000 <100 <200 -100 <100 <100 <to0 <100 <100 -1,000 <100 -1,000
<br /> 1 7/19/2013 2 -10,000 <80 <200 <100 <100 <70 -100 -100 -100 <1,000 <100 0,000
<br /> 1 10/18/2014 2 <10,000 -100 <200 <100 <100 -100 1100 <100 -100 <1.000 -100 -1,000
<br /> 1 2/20/2014 2 <10,000 <100 <200 -100 -100 <100 <100 <100 -100 <1,000 <100 -1,000
<br /> 1 4/25/2014 2 <10,000 <100 <200 -100 -100 <100 <100 <100 <100 <1,000 <100 <1,000
<br /> 1 7/11/2014 2 <10,000 -100 <200 <100 <100 -100 <100 -100 -100 <1,000 <100 -1,000
<br /> 1 110/2014 2 <10,000 140 -200 <100 <100 135 <100 <100 <100 <1,000 <100 -1,000
<br /> 1 2/24/2015 2 <10,000 140 -200 <100 <100 <35 <100 <100 <100 <1,000 -100 <1,000
<br /> 1 2/25/2015 2 <10,000 <40 <200 -100 -100 <35 <100 <100 -100 <1,000 <100 0,000
<br /> 1 7/1/2015 2 <10,000 <40 <200 -100 <100 135 <100 <100 <100 <1,000 <100 0,000
<br /> 1 7/2/2015 2 -10,000 <40 <200 <100 -100 <35 -100 <100 <100 -1,000 -100 -1,000
<br /> 1 9117/2015 2 -10,000 140 <200 -100 <100 135 <100 <100 -100 -1.000 <100 I -1,000
<br /> Page 22 of 23
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