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tcalculated using the average effluent stream concentrations and influent flow rate which resulted in a total mass of 1 73 pounds emitted by the SVE system from October 28 to December 27, 2005, into ambient air This value Is below the allowable 2 3 pounds per day of VOC's stated In the APCD permit Emissions ' calculations are provided In Table 8 Water Treatment System Evaluation ' From October 7 to December 27 2005 the average groundwater extraction rate from the vapor extraction > g g P system knockout tank was approximately 5 13 gallons per hour of operation and the total groundwater discharged to the City of Stockton sewer system was approximately 4,443 5 gallons 1 Approximately 4,443 5 gallons of groundwater were extracted from VWI, VW2, and MW1 and the ' average influent concentrations of TPHg, benzene,toluene, ethylbenzene, and total xylenes from October 7 to December 27, 2005,were below the stated laboratory method detection limits of 50 ug/l, 0 5 ug/l, 0 5 ug/l, 0 5 ug/l, and 1 0 ug/l, respectively The petroleum hydrocarbons in the extracted groundwater ' appear to be volatilizing and are being remedlated by the thermal oxidizer and absorbed by the in series carbon vessels located within the remediation compound Calculations for the masses of TPHg, benzene, toluene, ethylbenzene, xylenes, and MTBE removed during the fourth quarter 2005 reporting period are provided in Table 9 ' Total TPHg removed via groundwater treatment and discharge since system startup on December 19,2002 10 I3 pounds of TPHg as of end of third quarter 2005 +0 02 pounds of TPHg during the fourth quarter 2005 = 10 15 pounds of TPHg removed since the startup of the system Based on the low concentrations of the remaining target analytes detected from the influent sample port, the total mass BTEX treated and removed from the groundwater treatment system were calculated but not included in the cumulative removal volumes These values were calculated for each analyte for the current quarter, however, a cumulative total has not historically been calculated for each analyte since remediation began at the site Air Sparge System Evaluation From October 7 to November 21, 2005, the air sparge system operated continuously On December 27, ' 2005, the air sparge system was observed to have a cracked "T"point Subsequently, the air sparge system was not monitored and was shut down until the part could be replaced The average air injection rate from ' October 7 to November 21, 2005, was approximately 16 48 SCFM and the average influent pressure was approximately 3 5 pounds per square inch(PSI) GEOTRACKER DATA UPLOAD ' faclll has been assigned a Geotracker global identification number T0607700148 DT The facility g g W and ' laboratory data for the quarterly groundwater monitoring was submitted electronically to the State Water Resources Control Board (SWRCB) Geotracker database Additionally, analytical data associated with produced water (from the vapor wells) on October 27, November 21, and December 27, 2005, was submitted electronically to the SWRCB Geotracker database Vapor data from the thermal oxidizer will t be submitted electronically to the SWRCB Geotracker database when the appropriate electronic data files are received by ATC from the analytical laboratory An upload record of all submittals to the SWRCB Geotracker database for the current reporting period including sample dates, confirmation numbers, and sample types is presented In Table 10 Documentation of the data submittal is contained in Attachment 5 s 1e11viro1625961quart1yl4gr-2005 doc 8 ATC ASSOCIATES INC