ARCHIVED REPORTS XR0001262 - Laserfiche WebLink

Home Browse Search

i • Cumulative FP Recovered to Date NA Approximate Depth to Groundwater 23 65 to 27 74 Direction of Groundwater Flow Northeast to Southeast Groundwater Gradient 0 002 to 0 004 SVE QUARTERLY OPERATION AND PERFORMANCE Equipment Inventory King, Buck& Associates MMC-5A (100-scfm) Operating Mode Catalytic SJVUAPCD Permit No N-3664-1-0 TPHG Cone at End of Period (lab) 17,000 mg/m3 Benzene Cone End of Period (lab) 34 mg/m3 Flow Rate End of Period 34 cubic feet per minute re-dilution Applied Vacuum This Period 69 inches of water HC Destroyed This Period(lab) 3,077 pounds _ Utility Usage (electrical/gas/propane) 7,126 kilowatt hours Operating Hours This Period 1,379 Percent Time Operational 65 percent Number of Auto Shutdowns 2(power failures) CURRENT SOURCE (BEFORE DILUTION) INFLUENT SUMMARY (LAB) TPHG Cone This Period 17,000 mg/m3 TPHG Cone Last Period 11,000 mg/m3 Initial TPHG Cone 55,000 mg/m3 (January 24, 1997 [following_system startup]) Benzene Cone This Period 34 mg/m3 Benzene Cone Last Period 50 mg/m3 Initial Benzene Conc 980 mg/m3(January 24, 1997[following system startup]) DISCUSSION Results of this groundwater monitoring event Indicate that levels of dissolved gasoline hydrocarbons are consistent with levels detected during previous sampling events The groundwater flow direction and gradient are consistent with previous sampling events Groundwater elevation decreased approximately 1 09 feet from the previous sampling event (May 1997) The remediation system was started up on January 24, 1997 The remediation system consists of a King, Buck and Associates MMC-5A Catalytic Oxidizer rated at 100 cubic feet per minute The remediation system is connected to vapor extraction wells VW-4 through VW-13 The system was operational for 65 percent of the time during the third quarter and extracted a total of 3,077 pounds of . TPHG A cumulative amount of 7,684 pounds of TPHG has been removed since commencing SVE SAC\N TM80"8051461 ODS-97Tcbeil 1