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AraZ Laboratories, Inc. <br />2773 Downhill Drive Staamboat Sarins_ CO W4R7 (8001 334-5493 <br />Twentymile Coal Co. ACZ Project ID: L28772 <br />Volatile Organics by GC/MS <br />WG398042 <br />M8260B GUMS <br />AS Sample ID: L28772-01AS PCN/SCN: V160201-1-CCV Analyzed: 02101/16 14:22 <br />1,1,1,2 -TETRACHLOROETHANE <br />501.8 <br />U <br />504 <br />ug/L <br />100.0 <br />70 <br />130 <br />1,1,1 -TRICHLOROETHANE <br />501.3 <br />U <br />468 <br />ug/L <br />93.0 <br />70 <br />130 <br />1,1,2,2 -TETRACHLOROETHANE <br />498.8 <br />U <br />522 <br />ug/L <br />105.0 <br />70 <br />130 <br />1,1,2-TRICHLOROETH4kNE <br />500.5 <br />U <br />506 <br />ug/L <br />101.0 <br />70 <br />130 <br />1,1-DICHLOROETHANE <br />497.8 <br />U <br />473 <br />ug/L <br />95.0 <br />70 <br />130 <br />1,1-DICHLOROETHENE <br />499.8 <br />U <br />469 <br />ug/L <br />94.0 <br />70 <br />130 <br />1,1-DICHLOROPROPENE <br />503.3 <br />U <br />466 <br />ug/L <br />93.0 <br />70 <br />130 <br />1,2,3-TRICHLOROBENZENE <br />501.3 <br />U <br />521 <br />ug/L <br />104.0 <br />70 <br />130 <br />1,2,3-TRICHLOROPROPANE <br />502.5 <br />U <br />514 <br />ug/L <br />102.0 <br />70 <br />130 <br />1,2,4-TRICHLOROBENZENE <br />500.5 <br />U <br />530 <br />ug/L <br />106.0 <br />70 <br />130 <br />1,2,4-TRIMETHYLBENZENE <br />501.8 <br />U <br />520 <br />ug/L <br />104.0 <br />70 <br />130 <br />1,2-DIBROMO3-CHLOROPROPANE <br />498.5 <br />U <br />526 <br />ugA- <br />106.0 <br />70 <br />130 <br />1,2-DIBROMOETHANE <br />502.8 <br />U <br />502 <br />ug/L <br />100.0 <br />70 <br />130 <br />1,2 -DICHLOROBENZENE <br />489.3 <br />U <br />516 <br />ug/L <br />105.0 <br />70 <br />130 <br />1,2-DICHLOROETHANE <br />503.8 <br />U <br />479 <br />ug/L <br />95.0 <br />70 <br />130 <br />1,2-DICHLOROPROPANE <br />502.3 <br />U <br />479 <br />ug/L <br />95.0 <br />70 <br />130 <br />1,3,5-TRIMETHYLBENZENE <br />497.8 <br />U <br />524 <br />ug/L <br />105.0 <br />70 <br />130 <br />1,3 -DICHLOROBENZENE <br />493 <br />U <br />514 <br />uglL <br />104.0 <br />70 <br />130 <br />1,3-DICHLOROPROPANE <br />500.5 <br />U <br />503 <br />ug/L <br />100.0 <br />70 <br />130 <br />1,4 -DICHLOROBENZENE <br />494.3 <br />U <br />510 <br />uglL <br />103.0 <br />70 <br />130 <br />2,2-DICHLOROPROPANE <br />500.3 <br />U <br />478 <br />uglL <br />96.0 <br />70 <br />130 <br />2-BUTANONE <br />1001.3 <br />400 <br />1501 <br />ug/L <br />110.0 <br />70 <br />130 <br />2-CHLOROTOLUENE <br />493.3 <br />U <br />520 <br />ug/L <br />105.0 <br />70 <br />130 <br />2-HEXANONE <br />1000 <br />U <br />1121 <br />ug/L <br />112.0 <br />70 <br />130 <br />4-CHLOROTOLUENE <br />493.3 <br />U <br />520 <br />ug/L <br />105.0 <br />70 <br />130 <br />4-ISOPROPYLTOLUENE <br />500.5 <br />U <br />534 <br />ug/L <br />107.0 <br />70 <br />130 <br />4-METHYL-2-PENTANONE <br />1000.8 <br />U <br />1057 <br />ug/L <br />106.0 <br />70 <br />130 <br />ACETONE <br />1000.3 <br />2500 <br />3511 <br />ug/L <br />101.0 <br />70 <br />130 <br />ACRYLONITRILE <br />500 <br />U <br />486 <br />ug/L <br />97.0 <br />70 <br />130 <br />BENZENE <br />500.8 <br />U <br />465.6 <br />ug/L <br />93.0 <br />70 <br />130 <br />BROMOBENZENE <br />501 <br />U <br />514 <br />ug/L <br />103.0 <br />70 <br />130 <br />BROMOCHLOROMETHANE <br />497.5 <br />U <br />479 <br />ug/L <br />96.0 <br />70 <br />130 <br />BROMODICHLOROMETHANE <br />492.3 <br />U <br />481 <br />ug/L <br />98.0 <br />70 <br />130 <br />BROMOFORM <br />503 <br />U <br />502 <br />ug/L <br />100.0 <br />70 <br />130 <br />BROMOMETHANE <br />499.5 <br />U <br />465 <br />ug/L <br />93.0 <br />70 <br />130 <br />CARBON DISULFIDE <br />506.5 <br />U <br />449 <br />ug/L <br />89.0 <br />70 <br />130 <br />CARBON TETRACHLORIDE <br />501.8 <br />U <br />468 <br />ug/L <br />93.0 <br />70 <br />130 <br />CHLOROBENZENE <br />495 <br />U <br />499 <br />ug& <br />101.0 <br />70 <br />130 <br />CHLOROETHANE <br />500.5 <br />U <br />470 <br />ug/L <br />94.0 <br />70 <br />130 <br />CHLOROFORM <br />500.5 <br />U <br />468 <br />ug/L <br />94.0 <br />70 <br />130 <br />CHLOROMETHANE <br />502.5 <br />U <br />449 <br />ug/L <br />89.0 <br />70 <br />130 <br />CIS-1,2-0ICHLOROETHENE <br />500.3 <br />U <br />475 <br />ug/L <br />95.0 <br />70 <br />130 <br />CIS-1,3-=HLOROPROPENE <br />502.3 <br />U <br />479 <br />ug/L <br />95.0 <br />70 <br />130 <br />DIBROMOCHLOROMETHANE <br />497 <br />U <br />510 <br />ug/L <br />103.0 <br />70 <br />130 <br />L28772-1602081201 Page 13 of 36 <br />