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Fabruary 8, 1989 <br /> Page 4 <br /> This discharge to the atmosphere of <0.000007 lbs/day falls below <br /> the permit maximum of 4.7 lbs/day. The following table is a sum- <br /> nary of air-stripper influent-and effluent-benzene concentrations <br /> taken from the attached laboratory report forms. <br /> Date influent Benzene Effluent Benzene <br /> (ppb) (ppb) <br /> 12/15/88 <0.5 <0.5 <br /> 01/05/89 <0.5 <0.5 <br /> These results show that during this month of operation the permit <br /> requirements were met. If you have any questions, please contact <br /> us at. our Concord office. <br /> Sincerely, <br /> GROUNDWATER TECHNOLOGY, INC. <br /> � �tc• <br /> a d <br /> Biochemical Engineer <br /> Attachment <br /> DDD:LF <br /> L289401B <br /> cc: Mr. Hal Miller <br /> GROUNDWATER <br /> TEnINOLCIGY.INr. <br />