Laserfiche WebLink
9V <br /> TECHNOLOGIES,INC <br /> 289 Mount Hermon Rd, Surte 101 <br /> Scotts Wley(Q0� 438 1CA 950564029 <br /> FAX(4081)1-7511 <br /> 408)438-7515 <br /> M AY 2 6 J992 <br /> d <br /> AUG 0 4 9092 <br /> 21 May 1992 FNV������������-T" <br /> Mr. Kenneth Earnest FAX (209) 583-3282 <br /> Ultramar, Inc. <br /> 525 West Third Street <br /> Hanford, California 93230 <br /> Subject: ULTRAMAR STATION #695 <br /> Soil Vapor Extraction System Monitoring Data <br /> 500 SCFM Catalytic Incinerator <br /> 900 South Cherokee Lane <br /> Lodi , California <br /> Dear Fir. Earnest: <br /> The vapor extraction system at the above site was monitored on 10, 17 and <br /> 22 Apri 1 and on 6 May 1992. The results are presented in the attached <br /> tables for your review. Also attached are copies of the influent and <br /> effluent chromatograms and a site plan showing the layout of the vapor <br /> extraction system. <br /> Following deactivation of the operation in February, a replacement <br /> catalyst was installed and the system restarted on 27 March 1992. On 31 <br /> March, a taller exhaust stack was installed to prevent exhaust gases from <br /> being recaptured by the air intakes to the station building. <br /> 10 April 1992 Monitoring: <br /> A complete system monitoring, including wells, probes, and system totals, <br /> was undertaken on this date. The system had been dorm for several days <br /> and was in a state of rebound following start-up. Re-monitoring was <br /> scheduled for the following week. At the conclusion of this monitoring, <br /> 10 of the system's 23 extraction points were left open. <br /> kith over 6,000 ppm available hydrocarbons before dilution, the system <br /> influent was optimized by decreasing ambient dilution to the point where <br /> the exit temperature approached its maximum setting. The system vacuum <br /> was raised to 3.0" Hg and the system was extracting approximately 291 <br /> pounds of hydrocarbons per day. <br />