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Graph 2 - Concentrations of Hydrocarbons in Well NP-1-65 during C-Sparge System Operation <br /> 100000 8000 <br /> I <br /> 90000 j <br /> 7000 <br /> 80000 <br /> + 6000 <br /> 70000 <br /> I <br /> 60000 5000 <br /> Q CL <br /> = <br /> -n 50000 -— .� <br /> 4000 � <br /> a <br /> c <br /> m <br /> m <br /> 40000 - I <br /> 3000 <br /> 30000 <br /> Baseline 2000 <br /> Additional Sparge Points Installed <br /> 20000 <br /> Began Pilot Test j <br /> 10000 — ' 1000 <br /> I <br /> 0NP <br /> I 0 <br /> °�o��oO a O O O o o ° O o 0 0 �. �. �. �. N N N N N ._ '. . ►. �, ti ti ti h. ti 'L '1. `�. `l, �l, �, O <br /> '��o °�� ��4o° '�\°oo�°'��°��o�° �°�o�°���°���o�°,��ti°,��°�°�,�qo�°����°��yo�°��o������,�.����A\°o���\,����\�A\°\,�o�°\���°h�o��\,���h\��oo�h��\,�°�°��°��\,�A��\,�.,�o\,�o�°\�o�°��,°�� \►, \,�o, \��, \,��o\��o\�°�°\���°���,�° <br /> Sampling date <br /> { <br /> - -TPHg (in ppb) 4 benzene (in ppb} <br /> I <br />