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t Ir <br /> Addendum to Quarterly Groundwater Monitormg Report <br /> and Remediation Status Report dated August 21,1995 <br /> Moore Petroleum, 1399 E Yosemite Ave,Manteca,CA <br /> September 15, 1995 <br /> Page 2 <br /> the vapor extraction manifold, which is connected to both momtormg well MW-1B and also to a <br /> slotted horizontal pipe located beneath the former tank basin. The soil vapors are then passed <br /> through a particulate filter poor to entering the blower housing. The blower effluent is filtered <br /> through two 200-pound vapor phase carbon vessels configured In series pnor to atmospheric <br /> release The carbon adsorption vapor extraction system was started on July 5, 1995 and has <br /> operated contmuously through August 4, 1995 Dunng this reporting period, soil vapor flow to <br /> the system has vaned from 51 SUM on July 5, 1995 to 92 SUM on July 25, 1995 System <br /> operating data from both the RSI system and the carbon adsorption system is Included as Tables I <br /> and 2, respectively <br /> TABLE] R51 UNIT VAPOR EXTRACTION OPERATING DATA <br /> DATE FOUR FLOW ENGINE FLOW EX rNLEr STACK COMMENTS <br /> METER PRESS RPM RATE FLOW FrD FID <br /> (m H2O) (SCFM) (SCFM) (ppm) (ppm) <br /> 12106194 22 024 2400 25 73 l0 NA RA System Start Up <br /> 12/07/94 1&2 018 2400 22 73 55 1 Collected Samples for APCD <br /> 12/13/94 297 018 2400 22 73 NM 1 Routme Systan Check <br /> 12/16/94 31 8 0 16 2200 20 67 2 1 Routme Systan Check <br /> 12!21/94 1486 016 2400 20 73 12 1 Routme System Check <br /> 17127/94 299 024 2300 25 70 11 1 Routine System Check <br /> 01/03/95 462 03 2200 28 67 18 1 Routine System Check <br /> 01/10/95 631 04 2225 32 68 10 1 Routine System Check <br /> 01/17/95 795 0S 2100 36 64 NM t Routine Systan Check <br /> 01/24/95 959 07 2100 43 64 NM NM Routmo System Chock <br /> 02124/95 1084 01 2300 16 70 35 NM Sanplcs Co <br /> 03107195 1284 009 2200 15 67 1 <1 Routine System Check <br /> 03121/95 129r 009 2200 IS 67 <1 NM RSI System shut off <br /> TABLE 2 CARBON ADSORPTION FILTER VAPOR EXTRACTION OPERATING DATA <br /> DATE I T54E STACK FLOW FID READING(ppm) COMMENTS <br /> VEWCTTY RATE BLOWER I FIRST STACK <br /> (FT/1W (SCFM)- OLTL T 11 CARBON EFFLUENT <br /> 07/05)95 10.15 2400 51 NM NM NM Carbm systemstut up,samples collected <br /> 07111195 12.30 3300 71 3 0 0 Led system as is <br /> 07/18,95 1415 3700 79 0 0 0 Coamated hotmontal VES pipe n kw <br /> 07/25195 14,00 4300 92 0 0 0 Le8 system n noel VES oongpmbm <br /> 07131,95 12,00 3800 81 0 0 0 Leff system as v <br /> 08/04195 915 4000(assumed) 85 1 0 0 Shit system downforpukng <br /> 08/15/95 815 4200 90 0 0 0 Pa&mzd system pubt.teff system off <br /> •Stack tewpetadme assutmd 90 degrees F <br />