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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 /> EPA Methods 8260B 8260B AWK GC/TCD
<br /> TPH C2+11C's BTEX SVOCs Fuel Oxygenates Natural Gas
<br /> (Ref.Gas) Analysis
<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/rl (um (um (um (ug/m3) (um (ugm (Ug/ma) (um
<br /> (u /mppmV
<br /> Area 2Al2B And Adjacent Properties
<br /> UPSV-3D 1 7/11/2014 2,5 24,000 140 <200 1100 1100 135 1100 1100 1100 11,000 1100 380,000
<br /> (cont) 1 11/72014 2,5 130,000 40 <200 1100 1100 135 1100 1100 <100 11,000 1100 390,000
<br /> uPSV-4 13 7/192005 Not Sampled,soil vapor not purgeable
<br /> 9/1612005 Not Sampled,soil vapor not purgeable
<br /> 1011712005 Not Sampled,encountered groundwater
<br /> 11/182005 Not Sampled,encountered groundwater
<br /> 5/8/2006 Not Sampled,encountered groundwater
<br /> 8/15/2006 Not Sampled.encountered groundwater
<br /> 11/132006 Not Sampled,encountered groundwater
<br /> 2/9/2007 Destroyed Fourth Quarter 2006
<br /> UPSV-5 13 7/192005 1 Not Sampled,soil vapor not purgeable
<br /> 1 9/16/2005 2 13,000,000 1100 1100 <100 1100 1100 1100 1100 1100 -1,000 1100 7,600
<br /> 1 10/17/2005 2 4,200,000 1100 1100 <100 100 1100 1100 <100 1100 11,000 1100 24,000
<br /> 1 11/18/2005 2 4,700,000 1100 <100 1100 100 1100 <100 1100 <100 11,000 <100 47,000
<br /> 2/13/2006 Not Sampled,encountered groundwater
<br /> 5/8/2006 Not Sampled,encountered groundwater
<br /> 8/15/2006 Not Sampled,encountered groundwater
<br /> 1 11/13/2006 2 7,400,000 1100 <100 <100 <100 <100 1100 <100 1100 <1,000 <100 15,000
<br /> 1 2/9/2007 2 11,000,000 1100 1100 <100 1100 <100 <100 <100 <100 11,000 <100 100,000
<br /> 1 5/112007 2 18,000,000 1100 <100 1100 110 <100 <100 1100 <100 <1,000 1100 8,900
<br /> 1 720/2007 2 7,400,000 <100 <200 C00 1100 1100 1100 <100 <100 11,000 1100 3,800
<br /> 1 10/122007 2 34,000,000 1100 1200 <100 1100 <100 1100 <100 <100 <1,000 <100 1,300
<br /> 2/152008 Not Sampled.encountered groundwater
<br /> 4/25/2008 Not Sampled,encountered groundwater
<br /> 7252008 Not Sampled,encountered groundwater
<br /> 10/242008 Not Sampled,encountered groundwater
<br /> 2/202009 Not Sampled,encountered groundwater
<br /> 1 62/2009 2 6,600,000 1100 <200 1100 1100 1100 1100 <100 1100 <1,000 1100 1,100
<br /> 1 8/7/2009 2 4,800,000 1100 <200 1100 <100 1100 <100 <100 <100 <1,000 1100 1,600
<br /> 1 10/3012009 2 3,700,000 <100 1200 <100 <100 <100 '100 1100 <100 11,000 <100 <1,000
<br /> 2/19/2010 Not Sampled,encountered groundwater
<br /> 1 5/7/2010 2 110,000 <100 <200 <100 <100 <100 <100 <100 <100 11,000 <100 '1,000
<br /> 1 7/232010 2 1,700,000 1100 <200 <100 <100 1100 1100 <100 <100 <1,000 <100 -1,000
<br /> 1 10/222010 2 3,400,000 <100 <200 <100 <100 <100 <100 1100 <100 11,000 1100 <1.000
<br /> 1/28/2011 Not Sampled,encountered groundwater
<br /> 4/28/2011 Not Sampled,encountered groundwater
<br /> 2.5 7/21/2011 2 6,700,000 1100 1200 <100 <100 <100 <100 1100 <100 <1,000 <100 -1,000
<br /> 1 10/212011 2 7,100,000 <100 <200 <100 <100 <100 <100 <100 <100 <1,000 1100 <1,000
<br /> 1 127/2012 2 2,400,000 <100 <200 <100 1100 <100 <100 <100 1100 <1,000 <100 -1,000
<br /> 4/23/2012 Not Sampled,encountered groundwater
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