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I ra+ v analysis L.aboratars Inc <br /> LOG NUMBER- 6079 <br /> DATE SAMPLED_ 12/20/95 and 12/21/95 <br /> DATE RECEIVED: 12/21/95 <br /> DATE ANALYZED 12/22/95 <br /> DATE REPORTED: 01/25/96 <br /> PAGE Two <br /> Sample Type- Vapor <br /> RYA-1 dual ohase VW-1/vet _ VW-2/vet <br /> Method and Concen- Reporting Concen- Reporting Concen- Reporting <br /> Constituent: Units tration Limit tration Limit tration Limit <br /> Modified DHS Method: <br /> Total Petroleum Hydro- <br /> carbons as Gasoline ppm* 27,000 6,700 9,000 670 50,000 6,700 <br /> EPA Method 8020 for: <br />' Benzene ppm* 1. ,100 66 310 6.6 21200 66 <br /> Toluene ppm* 2,200 54 640 5 4 4,300 54 <br />' Ethyl benzene ppm* 370 46 140 4.6 550 46 <br /> Xylenes ppm* 1,600 140 670 14 2,500 140 <br /> VU-3 ost-s ar a VW-3/pre-sparge Method Blank <br /> Method and Concen- Reporting Concen- Reporting Concen- Reporting <br /> Cgm itup_nt: Units tration Limit tration Limit tration Limit <br /> rModified DHS Method: <br /> Total Petroleum Hydro- <br /> carbons as Gasoline ppm"" 30,040 6,700 43,000 6,700 ND 3 3 <br /> EPA Method 8020 for: <br /> Benzene ppm* 1 ,000 66 1,500 66 ND 0.03_ <br /> Toluene ppm* 1,900 54 2,700 54 ND 0,02' <br /> Ethylbenzene ppm* 460 46 640 46 ND 0,02 <br /> Xylenes ppm* 1,900 140 2,800 140 ND 0 06' <br /> 0C Summary- <br /> % Recovery: 97** <br /> % RPD: 1.0 <br /> IConcentrations reported as NO were not detected at or above the reporting limit. <br /> * The sample concentrations were converted to ppm using California Department of Health and <br /> Safety publication GISO 5155. <br /> The Recovery for vapor samples is based on the Laboratory Control Sample. <br /> Louts W_ DuPuis <br /> Quality Assurance/Quality Control Manager <br /> I � <br /> rrrTCOInTCrC T-;- 0T QP/C7/T0 <br />