Laserfiche WebLink
' Report—Fist Phase Remedial System Page 14 <br /> Former Manna Pro Site <br />' Project No 2013 <br /> June 18,2002 <br />' approximately 30 day intervals During the course of the operation, the Total Petroleum <br /> Hydrocarbons as Gasoline (TPH-G) levels steadily decreased as hydrocarbon-laden vapor <br />' was removed The initial air sample had a TPH-G concentration of 3 2 mg/L (=2900 <br /> ppm) and the samples collected on March 11, and April 23 contained 0 95 mg/L and 0 22 <br /> mg/L respectively The final sample was lost due to a defective Tedlar bag, but based on <br />' the PID calibration chart (see Section 6 1 1), it would have been about 0 18 mg/L <br /> Table 2 <br />' Summary Table 2 -Air Analytical Data <br />' Spl Date Gasoline Benzene I Toluene Ethyl Xylene <br /> Benzene <br /> Source Date mg/L µg/L I pg/L pg/L µg/L <br /> Stack Gas 02/14/02 ND< 05 ND< 3 ND<3 ND<3 ND< 3 <br />' 03/11/02 ND< 05 ND< 3 ND<3 ND<3 ND<3 <br /> 04/23/02 ND< 05 ND<3 ND<3 ND<3 ND< 3 <br /> 05/20/02 ND< 05 ND< 3 ND< 3 ND<3 ND< 3 <br />' VEW-1 02/14/02 320 140 490 9 1 110 <br /> 03/11/02 095 92 91 29 120 <br /> 04/23/02 022 ND< 3 09 10 43 <br /> 05/20/02 Sample Lost Due to Leak <br /> NA=Not Applicable <br /> ND=Not Detected <br /> I <br /> • <br /> I2937 Veneman Ave,#B240 Geo-Phase Environmental Inc Phone(209) 569-0293 <br /> Modesto, CA 95356 Fax(209) 569-0295 <br />