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�t • Ms Jan Sudomier, SJVAPCD November 25,2003 Second Source Test Report Project No 2007-0065-01 Page 2 During the system source test the following parameters were monitored and recorded on field data sheets • System influent flow rate, • Applied vacuum on the vapor extraction wells, • Collection of influent, mid, and effluent air samples, and • Photo-ionization detector (PID) measurements for orgame vapors from the extraction wells Influent and effluent air samples were collected on October 22, 2003, in the presence of SJVAPCD personnel Samples were collected in one-liter tedlar bags from sample ports (influent and effluent) (Figure 3) using a tedlar bag vacuum chamber and an air-sampling pump Samples were forwarded to Alpha Analytical, Inc (Alpha), a state certified laboratory (ELAP #2019), and analyzed for total petroleum hydrocarbons as gasoline . (TPHG) using United States Environmental Protection Agency (USEPA) method 8015B/DHS LUFT Manual, and for benzene, toluene, ethylbenzene, total xylenes (BTEX compounds), and methyl tertiary butyl ether (MTBE) using USEPA Method 8260B (Appendix A) Subsequent to system start-up on October 22, 2003, a Stratus technician visited the site weekly in accordance with the ATC requirements to verify the petroleum hydrocarbon destruction efficiency compliance using a PID In addition, influent and effluent air samples were collected on November 3, 2003 for laboratory analysis All field measurements were recorded on field data sheets and are included in Appendix B Analytical results of soil vapor samples collected on October 22 and November 3, 2003, were used to calculate mass extraction rates, mass emission rates, and destruction efficiencies Table 1 presents a summary of the system operating parameters, analytical results, and destruction efficiencies Detailed calculations for estimated mass emission rates and destruction efficiencies are presented in Appendix C Based on analytical results of air samples collected on October 22, 2003, TPHG, benzene, and MTBE were extracted at the rate of approximately 6 35 pounds per day (lbs/day), less than 0 007 lbs/day, and 127 lbs/day, respectively The mass emission - - - -- -- rates for TPHG, benzene, and MTBE were calculated to be less than 0 0794 lbs/day, Iess than 0 0008 lbs/day, and less than 0 0005 lbs/day, respectively The destruction efficiency of the SVE system for TPHG was estimated to be approximately greater than 98 percent for samples collected on October 22, 2003 P\USA Gaso11ne\0065\ReportsWSA 65_SecondSourceTestRep0rt doe