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Stantec
<br /> L & M OPERABLE UNIT- FOURTH QUARTER AND ANNUAL 2012 SITE STATUS,
<br /> REMEDIAL SUMMARY, AND GROUNDWATER MONITORING REPORT
<br /> Annual Summary of Remediation-2012
<br /> February 1, 2013
<br /> 6.1.2 DPE System 2012 Analytical Summary - Groundwater Extraction
<br /> The GWE component of the DPE system removed and treated approximately 169,209 gallons
<br /> of water during 2012 (December 15, 2011 to December 21, 2012). Approximate removal data
<br /> from 2012 is presented in the table below.
<br /> Approximate Approximate Approximate Approximate Approximate Approximate
<br /> System Data TPHg TPHd TPHo Benzene TBA MtBE
<br /> Hour Meter Totalizer Recovery Recovery Recovery Recovery Recovery Recovery
<br /> Date Reading Reading 2012 2012 2012 2012 2012 2012
<br /> Sampled hours al lbs. lbs. lbs. lbs. lbs. lbs.
<br /> 12/15/11 5,081.7 4,815,174 -- -- -- -- -- --
<br /> 01/19/12 5,081.7 4,815,230 0.000 0.00 0.00 0.000 0.000 0.000
<br /> 02/28/12 5,081.7 4,817,956 0.003 0.01 0.00 0.000 0.000 0.000
<br /> 03/16/12 5,082.3 4,818,886 0.001 0.00 0.00 0.000 0.000 0.000
<br /> 04/20/12 5,091.4 4,842,389 0.110 4.36 1.00 0.000 0.002 0.000
<br /> 05/08/12 5,098.1 4,846,480 0.026 1.07 0.29 0.000 0.000 0.000
<br /> 06/22/12 5,745.0 4,933,590 0.169 8.52 3.26 0.000 0.004 0.000
<br /> 07/12/12 5,747.6 4,935,171 0.000 0.05 0.02 0.000 0.000 0.000
<br /> 08/15/12 5,748.3 4,938,873 0.001 0.08 0.02 0.000 0.000 0.000
<br /> 09/21/12 5,913.1 4,953,475 0.011 0.50 0.24 0.000 0.001 0.000
<br /> 10/19/12 5,921.0 4,956,380 0.004 0.28 0.15 0.000 0.000 0.000
<br /> 11/28/12 5,923.8 4,970,032 0.011 1.02 0.58 0.000 0.001 0.000
<br /> 12/21/12 5,961.1 4,984,383 0.003 0.14 0.04 0.000 0.000 0.000
<br /> Period: December 15,2011 to December 21,2012
<br /> Period Days 372
<br /> Period Days Operational 36.6
<br /> Period Percent Operational 9.9%
<br /> Period Extracted Ground Water 169,209
<br /> Period Pounds of TPHg Removed 0.34
<br /> Period Pounds of TPHd Removed 16.03
<br /> Period Pounds of TPHo Removed 5.60
<br /> Period Pounds of Benzene Removed 0.000
<br /> Period Pounds of TBA Removed 0.008
<br /> Period Pounds of MtBE Removed 0.000
<br /> IATidewater\TW Stockton(P2A)\QMRs\2012\4Q12-Annual\4Q12 and Annual QSSR QRSR QMR Stockton_FINAL.doc 6.2
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