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07
<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 GUMS Full Scan ASTM D-1946
<br /> EPA Methods' 82600 11ii1ilk 82608 GC/TCD
<br /> TPH C2+HC's BTEX SVOCs Fuel Oxygenates Natural Gas
<br /> (Ref.Gas) Analysis
<br /> Casing Length Dilution ElhyF
<br /> Sample or Depth(bgs) Factor Date TPHg Benzene Toluene benzene Total Xylenes Naphthalene MTBE DIPE ETBE TBA TAME Methane Gas
<br /> ID feet TO-15 Sam led (ug/m') (ug/m') (ug/m') ug/m) (ug/m') (ug/m') (ug/m') u /m' ' ' '
<br /> (Ug/ma) (ug/m) (Ug/M3) ppmV
<br /> Area 2A/2B And Adjacent Properties
<br /> APSV-4 7/25/2008 Not Sampled,encountered groundwater
<br /> (cont) 10/24/2008 Not Sampled,encountered groundwater
<br /> 2/20/2009 Not Sampled,encountered groundwater
<br /> 6/2/2009 Not Sampled,encountered groundwater
<br /> 8/7/2009 Not Sampled,encountered groundwater
<br /> 2/19/2010 Not Sampled,encountered groundwater
<br /> 5/7/2010 Not Sampled,encountered groundwater
<br /> 7/23/2010 Not Sampled,encountered groundwater
<br /> 10/22/2010 Not Sampled,encountered groundwater
<br /> 1/28/2011 Not Sampled,encountered groundwater
<br /> 4/28/2011 Not Sampled,encountered groundwater
<br /> 7/21/2011 Not Sampled,encountered groundwater
<br /> 10/21/2011 Not Sampled,encountered groundwater
<br /> 1/27/2012 Not Sampled,encountered groundwater
<br /> 4/23/2012 Not Sampled,encountered groundwater
<br /> 7/20/2012 Not Sampled,encountered groundwater
<br /> 10/19/2012 Not Sampled,encountered groundwater
<br /> 1/30/2013 Not Sampled,encountered groundwater
<br /> 4/19/2013 Not Sampled,encountered groundwater
<br /> 7/19/2013 Not Sampled,encountered groundwater
<br /> 10/18/2013 Not Sampled,encountered groundwater
<br /> 2/20/2014 Not Sampled,encountered groundwater
<br /> 4/25/2014 Not Sampled,encountered groundwater
<br /> 711112014 Not Sampled,encountered groundwater
<br /> 2/25/2015 Not Sampled,encountered groundwater
<br /> 7/1/2015 Not Sampled,encountered groundwater
<br /> 9/17/2015 Not Sampled,encountered groundwater
<br /> 12/15/2015 Not Sampled,encountered groundwater
<br /> APSV-5 8.6 7/202005 1 Not Sampled,soil vapor not purgeable
<br /> 1 9/16/2005 2 '5,000 '100 '100 '100 '100 '100 '100 <100 <100 '1,000 '100 21,000
<br /> 1 10/17/2005 2 78,000 <100 '100 '100 120 '100 '100 '100 '100 <1,000 <100 5,500
<br /> 1 11/18/2005 2 130,000 120 '100 '100 100 <100 <100 '100 '100 '1,000 '100 <1,000
<br /> 2/13/2006 2 Not Sampled,encountered groundwater
<br /> 1 5/8/2006 2 16,000 '100 110 000 110 <100 '100 <100 <100 '1,000 '100 '1,000
<br /> 1 8/15/2006 2 Not Sampled,encountered groundwater
<br /> 1 11/13/2006 2 <5,000 '100 <100 <100 '100 '100 <100 <100 - <1,000 <100 <1,000
<br /> 1 2/9/2007 2 15,000 '100 <100 <100 <100 000 <100 '100 <100 '1,000 '100 '1,000
<br /> 1 5/11/2007 2 <5,000 <100 '100 <100 '100 <100 <100 <100 000 <1,000 <100 '1,000
<br /> 1 720/2007 Not Sampled,encountered groundwater
<br /> 1 10/12/2007 2 7,500 1 <100 <200 '100 '100 I <100 I <100 '100 '100 <1,000 '100 1 6,600
<br /> Page 12 of 23
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