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fAfnginsafing,Sdunta,and190101M <br /> 24 July 19'11OE „ <br /> I <br /> ,l ll L <br /> 1►lichacl 1'.l.sc htta .,kW,=1 At <br /> Air Pollution lnspcctcfr � F,;VIMyt,,q -, , <br /> Sart IMquin(:aunty Air l dilution Control Di'trict PLl.;.41, <br /> !'.O,Box NO) <br /> 2321 NV.Washington Street,Suite 1 <br /> Stocklan,California 95201 <br /> Rl::and TreatmcntlSy tem Operation atttChc a cin S59 19111,5 Harding NVatile <br /> y,Stockton. <br /> Extraction <br /> Mar Mr,l=Scotto: <br /> Enclosed arc the-results from effluent monitoring of lite vapor ex on nntreatment <br /> t systcm <br /> operating at Chevron SS9.1918,45 Harding Way, ockton, fornite <br /> dizer <br /> has been in operation for 27 days since the end of the last reporting period(20 June 1991). <br /> The thermal oxidizer data table (Table 1) includes analysis date.operating temperature,hydro- <br /> carbon compound concentrations,average daily influent concentration,and percent total volatile <br /> hydrocarbon destruction cfficicncy for each effluent sample analyzed. Since the last reporting <br /> period,all e:flucnt samples have exceeded the 95%minimum destruction efficiency,avcr.rging <br /> 97%destruction efficiency. <br /> Should you have any questions regarding this project or the contents of this letter,please do not <br /> hesitate to call us or Tcrry Winsor at tic above number, <br /> Sincerely, <br /> Joe Muchlcck <br /> Environmental Chemist <br /> 49 <br /> Douglas E.Oram,Ph.D. <br /> Project Manager <br /> ID,—n:w-uAc atitw--* <br /> Enclosures <br /> --- ------ - ---._ ce Clint Rogc.-Chzk ---- --- <br /> Dianne l ienxon-San Joaquin County Public feral Scivtcts- <br />