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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 MethodUD"Wlon
<br /> TO-3 GC/FID _ TO-15 GUMS Full Scan ASTM D-1946
<br /> EPA Method82606 82608 GC/TCD
<br /> TPH C2+HC's BTEX SVOCs Fuel Oxygenates Natural Gas
<br /> (Ref.Gas) Analysis
<br /> Casing Length Ethyl-
<br /> Sample or Depth(bgs) TPHg Benzene Toluene benzene Total Xylenes Naphthalene MTBE DIPE ETRE TBA TAME Methane Gas
<br /> ID feet (Ug/m' ug/m' (ug/m') (ug/m) (ug/m') (ug/ma) u /m' (ug/m') (ug/m') (ug/m') (ug/m') ppmV
<br /> Area 2A/2B And Adjacent Properties
<br /> APSV-1 1 2/20/2014 2,5 110,000 180 <200 1100 1100L�45
<br /> <I00 1100 1100 11,000 1100 <1,000
<br /> (Paired Well) 1 4/25/2014 2,5 <10,000 <40 <200 1100 11001700 1100 1700 11,000 1100 13,000
<br /> (cont) 1 7/11/2014 2,5 <10,000 <40 <200 <100 <100 <100 1100 <100 11000 <100 <1,000
<br /> 1 1117/2014 2,5 170,000 <40 <200 1100 <100 <100 <100 <100 <1000 <100 17,000
<br /> 1 2/25/2015 2,5 <10,000 <40 <200 <100 <100 <100 <100 <100 <1,000 1100 11,000
<br /> 1 7/12015 2,5 <10,000 <40 <200 1100 <100 <100 <100 <100 <1,000 <100 C.000
<br /> 1 9/17/2015 2,5 <10,000 <40 1200 <100 <100 1100 <100 <100 11,000 <too 11,000
<br /> 1 12/15/2015 2,5 .10,000 <40 <200 1100 <100 1100 <100 1100 <1,000 1100 <1,000
<br /> APSV-I-D 12 322 7/202005 1 9,700,000 <510 <610 <700 <700 .3400 1580 <2,700 <2,700 <2,000 <2,700 48,000
<br /> (Paired Well) 1 5/82006 2 1,400,000 <100 <100 1700 200 <100 <100 1700 <100 17,000 <100 17,000
<br /> APSV•1.D' 1.4 9/16/2005 1 4,900,000 1450 <530 1610 1,300 <3,700 <2,000 <2,300 12,300 <1,700 <3,600 <0.10
<br /> (Paired Well)
<br /> APSV-2 7 7/20/2005 1 Not Sampled,could not mach pressure goal
<br /> (Paired Well) 1 9/16/2005 2 Not Sampled,soil vapor not purgeable
<br /> 1 10/17/2005 2 63,000 1100 1100 <100 <100 <100 <100 1100 1100 <1,000 1100 11,000
<br /> 1 11/18/2005 2 75,000 <100 <100 1100 120 <100 <100 <100 1100 11,000 1100 <1,000
<br /> 2/13/2006 2 22,000 1100 <100 <100 <100 <100 <100 1100 <100 <1,000 <100 <1,000
<br /> 5/8/2006 2 7,200 <100 120 1100 110 <100 <100 1100 <100 <1,000 <100 <1,000
<br /> 1 8/15/2006 2 15,000 <100 1100 <100 <100 1100 1100 <100 1100 <1,000 <100 <1,000
<br /> 1 11113/2006 2 33,000 1100 <100 1100 1100 <100 <100 <100 1100 11,000 1100 <1,000
<br /> 1 2/9/2007 2 19,000 1100 <100 x100 1100 <100 1100 <1g0 <100 11,000 1100 11,000
<br /> 5/11/2007 Not Sampled,water in tube/saturated
<br /> 7/20/2007 Not Sampled,water in tube/saturated
<br /> 10/12/2007 Not Sampled,water in tube/saturated
<br /> 2/152008 Not Sampled,water in tube/saturated
<br /> 4/25/2008 Not Sampled,water in tube/saturated
<br /> 7/252008 Not Sampled,water in tube/saturated
<br /> 1 10/24/2008 2 15,000 1100 1200 <100 <100 <100 1100 1100 <100 <1,000 <100 <1,000
<br /> 2/20/2009 Not Sampled,water in tube/saturated
<br /> 6/2/2009 Not Sampled,water in tube/saturated
<br /> 8/7/2009 Not Sampled,water in tube/saturated
<br /> 2/19/2010 Not Sampled,water in tube/saturated
<br /> 5/7/2010 Not Sampled,water in tube/saturated
<br /> 1 7/232010 2 <10,000 1100 1200 <100 <100 1100 1100 1100 1100 -1,000 <100 <
<br /> 1 10/22/2010 2 <10,000 <100 <200 <100 1100 <100 < 1,000
<br /> 100 1100 1100 11,000 1100 11,000
<br /> 1/28/2011 Not Sampled,water intube/saturated
<br /> 4/28/2011 Not Sampled,water in tube/saturated
<br /> 721/2011 Not Sampled,water in lube/saturated
<br /> Page 9 of 23
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