ARCHIVED REPORTS_XR0012326 - Laserfiche WebLink

Home Browse Search

ATTACHMENT A REMEDIAL ACTION PERFORMANCE SUMMARY FIRST QUARTER 9996 SOIL-BASED REMEDIAL SYSTEM . Site Name Unocal Service Station 2859 Permitting Agency SJVUAPCD Site Address 1665 Pacific Avenue,Stockton California ATC No N-3529-t-0 Abatement Equipment Internal Combustion Engine ATC Expiration Date 12/29/97 Start-Up Date 2112196 Estimated Shutdown Date Unknown REMEDIAL OBJECTIVES o Migration Control o Mass Removal o Regulatory Compliance OPERATIONAL DATA Treatment System Data January February March Operational Status source Test Start-UP—DIOperational Instantaneous Flow Rate(scfm) 47 51 72 Table 1 Page A-2 TPPH and Benzene Summary January February March Influent TPPH-gasoline (ppmv) 1 773 898 496 Table 1 Page A-2 Influent Benzene (ppmv) 22 51 ND Table 1 Page A-2 Effluent TPPH-gasoline (ppmv) 35 24 so Table 2 Page A-3 Effluent Benzene (ppmv) 031 031 0 22 Cumulative Table 2 Page A-3 Mass TPPH Removed (Ibs) 00 10 5801 581 1 Table 1 Page A-2 Mass Benzene Removed (lbs) 0 00 D 01 300 '401 Table 1 Page A-2 REMEDIAL ACTION PERFORMANCE EVALUATION Migration Control The vapor extraction system is effective in controlling migration of petroleum hydrocarbons in the unsaturated zone Mass Removal Mass removal is being achieved Mass removal trend will be discussed next quarter,once system has been operating steadily for a full quarter Regulatory Compliance During system startup in the first quarter 1996,the sod vapor extraction system operated in compliance with the San Joaquin Valley Unified Air Pollution Control District requirements ACTIONS/RECOMMENDATIONS o Continue system operation,adjust equipment as needed to optimize mass removal and meet regulatory compliance NOTES scfm =Standard cubic feet per minute ppmv=Parts per million by volume lbs =Pounds ND =Not detected above detection limit Note When appropriate,tabulated data is followed by associated graphical presentation 31004D5A11Q96QPR XLS11Q96 A-1 April 18,1996