Laserfiche WebLink
Third Quarter 2000 Site Update - Former Chevron #9-5775 (CAO #5-00-704) <br />October 12, 2000 <br />lb of TPHg, 0 0061b of benzene and 2 71b of MtBE Chemical analytical data for wells EX -1 and MW -14 <br />are summarized on Table 3 Well operations are summarized on Table 4 <br />Summary of VES Operation <br />Initial sampling and inspection of the vapor system as specified in the SJVUAPCD Authority to Construct <br />#N-4343-1-0 was performed on July 10, 2000 Influent and effluent vapor stream samples were collected <br />three times during July and August, and once during September, 2000, for a total of seven samples during <br />the quarter Influent TPHg concentrations ranged from 29 to 7,000 milligrams per cubic meter (mg/ml) <br />benzene concentrations ranged from 5 3 to 180 mg /M3, and MtBE concentrations ranged from 211 to 2,200 <br />Mg/M3 Samples were analyzed by Sequoia Analytical and Kiff Analytical As of September 20, the VES <br />had removed approximately 2,348 pounds (lb ) of TPHg, 102 lb of benzene and 365 Ib of MtBE The VES <br />operated 1796 hours during the quarter, and except for routine maintenance, was not down during the quarter <br />VES operational and chemical analytical data are summarized in Table 3 through 5 A letter summarizing <br />VES startup results was sent to SJVUAPCD on August 22, 2000 <br />Waste Disposal <br />Groundwater pumped from well EX -1 prior to GWS startup was pumped to a holding tank Water used to <br />flush the GWS on July 10 and August 18 were also discharged to this holding tank The contents of the <br />• holding tank were removed by Chevron's contractor Integrated Wastestream Management (IWM) and <br />transported to McKittrick for disposal The holding tank has been removed from the site <br />Please call us at 916 631 1300 if you have questions <br />Sincerely, <br />Gettler-Ryan Inc. <br />Stephen J Carter, R G <br />Senior Ge #gist <br />Gre A Gurss <br />Sr Protect Manager <br />Attachments Figure 1 <br />Vicinity Map <br />Figure 2 <br />Site Plan <br />Figure 3 <br />Groundwater System Process flow Diagram <br />Figure 4 <br />Vapor System Process Flow Diagram <br />Table 1 <br />Groundwater Extraction and Treatment System Analytical Data <br />Table 2 <br />Groundwater Extraction and Treatment System Operational Data <br />Table 3 <br />Summary of Pumping Well Analytical Data <br />0 Table 4 <br />Summary of Pumping Well Operational Data <br />346408 07 <br />4 <br />