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1 <br />' Mr John Benedict Project 880039 IA <br /> January 26, 2001 <br /> Page 4 <br /> satisfactorily The catalyst was serviced during the first week of January 2001, to improve <br /> system destruction performance Completed O&M field sheets are presented in Appendix D <br /> System Performance Status <br /> During the fourth quarter 2000, the system emissions were in compliance with air board <br /> discharge requirements Destruction efficiencies ranged from 65 to 90 percent To improve <br />' destruction efficiency, the catalyst was serviced (baked) during the first week of January 2001, <br /> and is scheduled to be replaced in the first quarter 2001 System performance data is <br /> summarized below and in Tables 1 through 3, located in Appendix D Removal rate, destruction <br /> efficiency, and emission rate calculations are presented in Appendix D <br /> Fourth Quarter 2000 System Performance Summary <br /> Total pounds TPH-g removed since startup 2,486 <br /> Total pounds TPH-g removed during this reporting period 333 <br /> Total pounds benzene removed since startup 26 <br /> Total pounds benzene removed during this reporting period 1 <br /> Average flow rate for this reporting period(acfm) 53 <br /> System uptime during this reporting period(%) 57 <br />' Current TPH-g daily removal rate(pounds per day) 9 <br /> TPH-g and benzene destruction efficiency(%) 65 to 90 <br />' TPH-g errussion rate to atmosphere(pounds per day) 0 38 to 1 11 <br /> Benzene ermssion rate to atmosphere(pounds per day) <0 0002 to 0 0011 <br /> CONCLUSIONS <br />' Analytical results of collected groundwater samples were generally consistent with previous <br /> sampling events Groundwater elevation decreased 0 92 foot from the previous sampling event <br /> (August 2000) <br /> Approximately 333 pounds of TPH-g and one pound of benzene were removed during the fourth <br /> quarter Destruction efficiencies ranged from 65 to 90 percent TPH-g mass emissions to the <br /> atmosphere ranged from 0 38 to 1 11 pounds per day, and benzene mass emissions ranged from less <br /> than 0 0002 to 0 0011 pounds per day, demonstrating the system is operating consistent with permit <br /> requirements <br /> IT CORPORATION <br /> SAC 11+11sacDp\2001�PRJ1PJ81880039 la iaa doc-001ta 1 <br /> (01010000) <br />