Laserfiche WebLink
. Is Free Product(FP) Present on Site Yes (FP MW-1 and MW-15, and sheen VW-1 and VW-4) <br /> FP Recovered This Quarter 15 gallons <br /> Cumulative FP Recovered to Date 256 gallons <br /> Depth to Groundwater(Upper) 20 70 to 65 03 feet below ground surface (bgs) <br /> Groundwater Flow Direction (Upper) South <br /> Groundwater Gradient (Upper) 0 087 ft/ft <br /> Depth to Groundwater(Lower) 85 40 to 103 06 feet bgs <br /> Groundwater Flow Direction (Lower) Southeast <br /> Groundwater Gradient (Lower) 0 195 ft/ft <br /> SVE QUARTERLY OPERATION AND PERFORMANCE <br /> Equipment Inventory Solleco 500 cfm thermal oxidizer <br /> Extraction Wells VW-1, VW-3, VW-4, VW-8, VW-14, MW-2, MW-8, and <br /> MW-9 MW-2 was disconnect and MW-4 was included on <br /> August 22, 2005 <br /> Operating Mode Shutdown on September 19, 2005 <br /> I <br /> Required Permits San Joaquin Valley Air Pollution Control District <br /> Permit No N-5026-3-0 <br /> • Influent GRO Conc End of Period 10,000 milligrams per cubic meter m /m3 <br /> Influent Benzene Conc End of Period 160 Mg/M3 <br /> Influent MTBE Conc End of Period <5 0 ms/M3 <br /> Average Flow Rate This Period 241 40 cfm <br /> Average Applied Vacuum This Period 85 68"wc <br /> HC Destroyed This Period (lab) 19,552 27 lbs <br /> Cumulative NC Destroyed 33,485 67 lbs as GRO (mass from old and new SVE <br /> systems) <br /> Number of Shutdowns 1 <br /> DISCUSSION <br /> Upper Water Bearing Zone Sand Zone 1 <br /> During the third quarter 2005, a product sheen was found in wells VW-1 and VW-4, and 5 gallons of <br /> product/water mixture were manually bailed Approximately 10 gallons (VW-1) and 16 gallons (VW-4) of <br /> product/water mixture have been manually bailed to date Product thickness measurements and volumes <br /> of liquid bailed are summarized In Table 1 <br /> At the time of the third quarter 2005 monitoring event, groundwater levels had decreased between 1 10 <br /> and 16 05 feet in wells MW-2, MW-8, VW-2, and VW-5, and Increased between 0 14 and 10 05 feet In <br /> wells MW-4, MW-13, VW-3, and VW-14 since the previous monitoring event (June 21, 2005) <br /> Depth-to-water measurements were normalized to mean sea level (MSL) and used to construct a <br /> groundwater elevation contour map (Figure 3) Wells that contained less than 1 foot of water are <br /> Interpreted to be dry and are Indicated as "dry" on Figure 3 The groundwater levels in wells VW-3, VW-6, <br /> K IBp-Arco for URS\6100IQuarterly120051Arco_b100_3Q05 doe 5T1C'A7U5 <br />