0000031 £MB Sample No. C1696 (Bl«n)Q Page 01 0435

EPA Region 5 Records Ctr.

Analysis Date 2-19-B7 Accuracy By: Matrix Spike DI Spike SURROGATE RESPONSES Surrogate Solution No. Compounds in Solution % Recovery PC Limits Bromochloronethane 108 70 - 130 l-bromo-2-chloroethane 102 70 - 130 Toluene, d6 100 70 - 130 1,4-dichlorobutane 104 70 - 130 1,9-clecadiene 103 70 - 130

SAMPLE RESULTS Method Result Replicate Precision Accuracy Blank Parameter (ucr/1) (ua/1) (% RSD) (\ R) ug/1 Acetone <50 <50 Acrolein <20 <20 Acrylonitrile <20 <20 Benzene <2 <2 Bromoform <2 <2 Bromodlchloromethane <2 <2 Bromomethane <2 <2 Carbon Bisulfide <100 <100 Carbon Tetrachloride <2 130 <2 -Jhlorobenzene <2 <2 Chlorodlbromomethane <2 97 <2 Jhloroethane <2 <2 2-Chloroethylvinylether <2 <2 Chloroform <2 100 <2 Chloromethane <2 <2 1,2-Dlchlorobenzene <2 <2 1,3-Dichlorobenzene <2 <2 1,4-Dichlorobenzene <2 <2 Dichlorodifluoromethane <2 <2 1,1-Dichloroethane <2 <2 1,2-Dlchloroethane <2 94 <2 1,1-Dichloroethene <2 <2 t-lf2-Dichloroethene <2 <2 Ir2-Dichloropropane <2 <2 c-l,2-Dichloropropene <2 <2 t-l,2-Dichloropropene <2 <2 EMB Sample No. C1696 Page 01 0486 Continuation of TASK VOA/HATER Method Result Replicate Precision Accuracy Blank Parameter (ucr/1) (ua/1) (% RSD) (% R) ua/1 Ethylbenzene <2 <2 Fluorotrlchloronethane <2 <2 2-Hezanone Methylene Chloride <2 <2 Methyl Ethyl Ketone Methyl Isobutyl Ketone Paraldehyde <20 <20 Styrene <2 <2 1,1,2,2-Tetrachloroethane <2 <2 Tetrachloroethylene <2 <2 Toluene <2 <2 1,1,1-Trlchloroethane <2 121 <2 1,1,2-Trichloroethane <2 <2 Trlchloroethylene <2 <2 Vinyl Acetate Vinyl Chloride <2 <2 m-Xylene <2 <2 o-Xylene <2 <2 p-Xylene <2 <2 I 01 0487 EMB Sample No. C1697 A Page

I TASK VGA/HATER I Analysis Date 2-19-87 Accuracy By: Matrix Spike DI Spike EPA QC SURROGATE RESPONSES Surrogate Solution No. Compounds in Solution % Recovery PC Limits Bromochloromethane 106 / 106 70 - 130 l-bromo-2-chloroethane 100 / 94 70 - 130 Toluene, d6 93 / 94 70 - 130 1,4-dlchlorobutane 100 / 100 70 - 130 1,9-decadiene 83 / 68 70 - 130

SAMPLE RESULTS Method Result Replicate Precision Accuracy Blank Parameter (uq/1) (ua/1) (% RSD) (% R) uq/1 Acetone <50 <50 0.0 <50 Acrolein <20 <20 0.0 <20 Acrylonitrile <20 <20 0.0 <20 Benzene <2 <2 0.0 <2 Bromoform < 2 <2 0.0 <2 Bromodlchloromethane <2 <2 0.0 <2 BroBonethane <2 <2 0.0 <2 arbon Bisulfide <100 <100 0.0 <100 Carbon Tetrachloride <2 <2 0.0 130 <2 Thlorobenzene <2 <2 0.0 <2 Jhlorodibromonethane <2 <2 0.0 97 <2 Chloroethane <2 <2 0.0 <2 2-Chloroethylvinylether <2 <2 0.0 <2 Chloroform <2 <2 0.0 100 <2 "hloromethane <2 <2 0.0 <2 1,2-Dichlorobenzene <2 <2 0.0 <2 1,3-Dichlorobenzene <2 <2 0.0 <2 1,4-Dichlorobenzene <2 <2 0.0 <2 Dichlorodlfluoroaethane <2 <2 0.0 <2 1,1-Dichloroethane <2 <2 0.0 <2 1,2-Dichloroethane <2 <2 0.0 94 <2 1,1-Dichloroethene <2 <2 0.0 <2 t-l,2-Dichloroethene <2 <2 0.0 <2 1,2-Dichloropropane <2 <2 0.0 <2 c-l,2-Dichloropropene <2 <2 0.0 <2 t-l,2-Dichloropropene <2 <2 0.0 <2 EMB Sample No. C1697 Page of Vi v Continuation of TASK VOA/WATER

Method Result Replicate Precision Accuracy Blank Parameter (ua/1) (Ud/1) (% RSD) (% R) ua/1 Ethylbenzene <2 <2 0.0 <2 Fluorotrichloromethane <2 <2 0.0 <2 2-Hexanone <10 <10 0.0 <10 Methylene Chloride <2 <2 0.0 <2 Methyl Ethyl Ketone <10 <10 0.0 <10 Methyl Isobutyl Ketone <10 <10 0.0 <10 Paraldehyde <20 <20 0.0 <20 Styrene <2 <2 0.0 <2 1,1,2, 2-Te trachloroe thane <2 <2 0.0 <2 Tetrachloroethylene <2 <2 0.0 <2 Toluene <2 <2 0.0 <2 . ,1 , 1-Tr ichloroethane <2 <2 0.0 121 <2 1,1, 2-Trichloroethane <2 <2 0.0 <2 Trichloroethylene <2 <2 0.0 <2 Vinyl Acetate <10 <10 0.0 <10 Vinyl Chloride <2 <2 0.0 <2 m-Xylene <2 <2 0.0 <2 o-Xylene <2 <2 0.0 <2 p-Xylene <2 <2 0.0 <2 EMB Sample No. C169B Page 01 0489 I TASK VOA/HATERI Analysis Date 2-19-87 Accuracy By: Matrix Spike DI Spike EPA QC SURROGATE RESPONSES Surrogate Solution No. Compounds in Solution % Recovery PC Liaits Bronochloronethane 108 70 - 130 l-brono-2-chloroethane 101 70 - 130 Toluene, d6 99 70 - 130 1,4-dichlorobutane 103 70 - 130 1,9-decadiene 88 70 - 130

SAMPLE RESULTS Method Result Replicate Precision Accuracy Blank Parameter (ucr/1) (ua/1) (% RSD) (% R) ua/1 Acetone <50 <50 Acrolein <20 <20 Acrylonitrile <20 <20 Benzene <2 <2 Bronoform <2 <2 Bromodichloromethane <2 <2 Bromomethane <2 <2 Carbon Disulfide <100 <100 arbon Tetrachlorlde <2 130 <2 Chlorobenzene <2 <2 Jhlorodibromomethane <2 97 <2 Chioroethane <2 <2 2-Chloroethylvlnylether <2 <2 Thloroforn <2 100 <2 Jhloromethane < 2 <2 1,2-Dichlorobenzene <2 <2 1,3-Dichlorobenzene < 2 <2 1,4-Dichlorobenzene <2 <2 Dichlorodifluoronethane <2 <2 1,1-Dichloroethane <2 <2 1,2-Dlchloroethane <2 94 <2 1,1 -Dichloroe thene < 2 <2 t-l,2-Dichloroethene <2 <2 1,2-Dlchloropropane <2 <2 c-l,2-Dichloropropene <2 <2 t-l,2-Dichloropropene <2 <2 r Sample No. C1698 Page Continuation of TASK VOA/HATER Method Result Replicate Precision Accuracy Blank Parameter (ucr/1) (% RSD) (% R) ug/1 Ethylbenzene <2 <2 Fluorotrichloronethane <2 <2 2-Hexanone <1 Methylene Chloride <2 <2 Hethy1 Ethyl Ketone Methyl Isobutyl Ketone Paraldehyde <20 <20 Styrene <2 <2 1,1,2,2-Tetrachloroethane <2 <2 Tetrachloroethylene <2 <2 Toluene <2 <2 1,1-Trichloroethane <2 121 <2 ,1,2-Trichloroethane <2 <2 i'richloroethylene <2 <2 Vinyl Acetate <10 Vinyl Chloride <2 <2 m-Xylene <2 <2 o-Xylene <2 <2 p-Xylene <2 <2 ,4B Sample No. C1699 (2) Page 01 0491 I TASK VOA/KATERI Analysis Date 2-19-87

Accuracy By: Matrix Spike DI Spike EPA QC SURROGATE RESPONSES Surrogate Solution No. Compounds in Solution % Recovery QC Limits Bromochloromethane 108 70 - 130 1-bromo-2-chloroethane 102 70 - 130 Toluene, d6 93 70 - 130 1,4-dichlorobutane 107 70 - 130 1,9-decadiene 80 70 - 130

SAMPLE RESULTS Method Result Replicate Precision Accuracy Blank Parameter (ucr /1) (uq/1) (\ RSD) (% R) ug/1 Acetone <50 <50 Acrolein <20 <20 Acrylonitrile <20 <20 Benzene <2 <2 Bromoform <2 <2 Bromodlchloromethane <2 <2 Bromomethane <2 <2 Carbon Bisulfide <100 <100 "\rbon Tetrachloride <2 130 <2 ^ilorobenzene <2 <2 '"hlorodibroBomethane <2 97 <2 aloroethane <2 <2 2-Chloroethylvinylether <2 <2 Chloroform <2 100 <2 ^hloromethane <2 <2 _,2-Dichlorobenzene <2 <2 1,3-Dlchlorobenzene <2 <2 1,4-Dichlorobenzene <2 <2 Dlchlorodlfluoromethane <2 <2 1,1-DIchloroethane <2 <2 1,2-Dlchloroethane <2 94 <2 1,1-Dichloroethene <2 <2 t-l,2-Dichloroethene <2 <2 1,2-Dichloropropane <2 <2 c-l,2-Dichloropropene <2 <2 t-l,2-Dichloropropene <2 <2 ,g Sample No. C1699 Page Continuation of TASK VOA/KATER 01 049Z Method Result Replicate Precision Accuracy Blank Parameter (ua/1) (ua/1) (% RSD) (% R) ug/1 Ethylbenzene <2 <2 Fluorotrlchloronethane <2 <2 2-Hezanone <10 Methylene Chloride <2 <2 Methyl Ethyl Ketone Methyl Isobutyl Ketone Paraldehyde <20 <20 Styrene <2 <2 1,1,2,2-Tetrachloroethane <2 <2 Tetrachloroethylene <2 <2 Toluene <2 <2 1 1,1-Trlchloroethane <2 121 <2 i,2-Trichloroetbane <2 <2 >^ichloroethylene <2 <2 Vinyl Acetate <10 <10 Vinyl Chloride <2 <2 m-Xylene <2 <2 o-Xylene <2 <2 p-Xylene <2 <2 EMB Saaple No. C1700 A/ Page 01 0493 I TASK VOA/HATERI Analysis Date 2-19-87 Accuracy By: Matrix Spike DI Spike EPA QC SURROGATE RESPONSES Surrogate Solution No. Compounds in Solution %. Recovery PC Limits firooochloronethane 105 70 - 130 l-bromo-2-chloroethane 102 70 - 130 Toluene, d6 100 70 - 130 1,4-dichlorobutane 102 70 - 130 1,9-decadiene 89 70 - 130

SAMPLE RESULTS Method Result Replicate Precision Accuracy Blank Parameter (ug/1) (ua/1) (% RSD) (% R) ua/1 Acetone <50 <50 Acrolein <20 <20 Acrylonitrile <20 <20 Benzene <2 <2 Bromoform <2 <2 Bronodichloromethane <2 <2 Bromomethane <2 <2 Carbon Disulflde <100 <100 Carbon Tetrachlorlde <2 130 <2 Chlorobenzene <2 <2 Chlorodibromomethane <2 97 <2 Chloroethane <2 <2 2-Chloroethylvinylether <2 <2 Chi or of or a <2 100 <2 Chio ronethane <2 <2 1,2-DlChlorobenzene <2 <2 1,3-DiChlorobenzene <2 <2 1,4-Dichlorobenzene <2 <2 Dichlorodifluoroaethane <2 <2 1,1-D1Chloroethane <2 <2 1,2-DlChloroethane <2 94 <2 1,1-Dlchloroethene <2 <2 t-1,2-Dichloroethene <2 <2 1,2-Dichloropropane <2 <2 c-l,2-Dichloropropene <2 <2 t-1r2-Dichloropropene <2 <2 EMB Sample No. C1700 Page Continuation of TASK VOA/KATER 01 0494 Method Result Replicate Precision Accuracy Blank Parameter (uq/1) (UQ/1) (% RSD) (% R) uor/1 Ethylbenzene <2 <2 Fluorotrichloronethane <2 <2 2-Hexanone Methylene Chloride <2 <2 Methyl Ethyl Ketone Methyl Isobutyl Ketone Paraldehyde <20 <20 Styrene <2 <2 1,1,2,2-Tetrachloroethane <2 <2 Tetrachloroethylene <2 <2 Toluene <2 <2 1 ,1,1-Trlchloroethane <2 121 <2 .,1,2-Trichloroethane <2 <2 ^Trichloroethylene <2 <2 Vinyl Acetate <10 Vinyl Chloride <2 <2 B-Xylene <2 <2 o-Xylene <2 <2 p-Xylene <2 <2 01 0495 Sample No. C1701 rfr Page

I TASK VOA/HATERI Analysis Date 2-19-87 Accuracy By: Matrix Splice DI Splice EPA QC SURROGATE RESPONSES Surrogate Solution No. Compounds In Solution % Recovery QC Limits . Bromochloronethane 105 70 - 130 . l-bromo-2-chloroethane 98 70 - 130 . Toluene, d6 100 70 - 130 . 1,4-dichlorobutane 99 70 - 130 . 1,9-decadiene 94 70 - 130

SAMPLE RESULTS Method Result Replicate Precision Accuracy Blank _ Parameter (ucr/1) (ua/1) (% RSD) (% R) ug/1 Acetone <50 <50 Acrolein <20 <20 Acrylonltrlle <20 <20 Benzene <2 <2 Bromof orm < 2 <2 Bromodlchl or one thane <2 <2 Bromome thane <2 <2 Carbon Bisulfide <100 <100 n<»rbon Tetrachloride <2 130 <2 , ^lorobenzene <2 <2 "Morodlbromomethane <2 97 <2 <2 <2 2-Chloroethylvinylether <2 <2 Chloroform <2 100 <2 ""Moromethane <2 <2 ,2-Dichlorobenzene <2 <2 1,3-Dlchlorobenzene <2 <2 1,4-Dichlorobenzene <2 <2 Dlchlorodifluoromethane <2 <2 1,1-Dichloroe thane <2 <2 1,2-Dichloroethane <2 94 <2 1,1-Dichloroethene <2 <2 t-l,2-Dichloroethene <2 <2 1,2-Dichloropropane <2 <2 c-l,2-Dichloropropene <2 <2 t-l,2-Dichloropropene <2 <2 01 0496

No. C1701 Page Continuation of TASK VOA/HATER Method Result Replicate Precision Accuracy Blank (ua/1) (ua/1) (% RSD) (% R) <2 Ethylb*nzene <2 <2 Fluorotrichloromethane <2 <1( 2-Hexanone <10 <2 Methylene Chloride <2 Methyl Ethyl Ketone Methyl Xtobutyl Ketone <20 Paraldehyde <20 <2 <2 f^S^S-Tetrachloroethane <2 <2 -r'trachloroethylene <2 <2 <2 <2 1luen i-Trlchloroethane e <2 121 <2 1' 1', 2-Tr1chloroethane <2 <2 Trichloroethylene <2 <2 Vinyl Acetate <10 <2 <2 Vinyl Chloride <2 m-Xylene <2 <2 <2 0-Xylene <2 p-Xylene <2 01 0497 Sample No. C1702 Page

I TASK VOA/HATERI Analysis Date 2-19-87 Accuracy By: Matrix Spike DI Spike EPA QC SURROGATE RESPONSES Surrogate Solution No. Compounds In Solution % Recovery QC Limits Bronochloromethane 106 70 - 130 l-broBO-2-chloroethane 99 70 - 130 Toluene, d6 89 70 - 130 1,4-dlchlorobutane 101 70 - 130 1,9-decadiene 80 70 - 130

SAMPLE RESULTS Method Result Replicate Precision Accuracy Blank Parameter (ug/1) (ucr/1) (% RSD) (% R) ua/1 Acetone <50 <50 Acrolein <20 <20 Acrylonitrlle <20 <20 Benzene < 2 <2 BroBoforn <2 <2 BroBodlchloroaethane <2 <2 BroBomethane <2 <2 Carbon Bisulfide <100 <100 "*rbon Tetrachlorlde <2 130 <2 alorobenzene <2 <2 "hlorodibromomethane <2 97 <2 Aloroethane <2 <2 2-Chloroethylvinylether <2 <2 ChloroforB <2 100 <2 ChloroBethane <2 <2 2-Dichlorobenzene <2 <2 4.,3-Dichlorobenzene <2 <2 1,4-Dichlorobenzene <2 <2 OlchlorodlfluoroBethane <2 <2 1,1-Dichloroethane <2 <2 1,2-Dlchloroethane <2 94 <2 1,1-Dlchloroethene <2 <2 t-l,2-Dlchloroethene <2 <2 1,2-Dichloropropane <2 <2 c-l,2-Dlchloropropene <2 <2 t-lr2-Dichloropropene <2 <2 01 0498 Ab Sample No. C1702 Page Continuation of TASK VOA/HATER Method Result Replicate Precision Accuracy Blank Parameter (ug/1) (ua/l> (% RSD) (% R> Ethylbenzene <2 <2 Fluorotrichloronethane <2 <2 2-Hexanone <1( Methylene Chloride <2 <2 Methyl Ethyl Ketone Methyl Isobutyl Ketone Paraldehyde <20 <20 Styrene <2 <2 1,1,2,2-Tetrachloroethane <2 <2 Tetrachloroethylene <2 <2 Toluene <2 <2 1,1,1-Trlchloroethane <2 121 <2 1,1,2-Trichloroethane <2 <2 Trichloroethylene <2 <2 Vinyl Acetate Vinyl Chloride <2 <2 m-Xylene <2 <2 o-Xylene <2 <2 p-Xylene <2 <2 Saaple No. C1703 Page 01 0499 I TASK VOA/HATERI Analysis Date 2-19-87 Accuracy By: Matrix Spike DI Spike EPA QC SURROGATE RESPONSES Surrogate Solution No. Compounds }n Solution % Recovery QC Limits Bromochloromethane 106 70 - 130 l-bromo-2-chloroethane 100 70 - 130 Toluene, d6 95 70 - 130 1,4-dichlorobutane 100 70 - 130 1,9-decadlene 70 70 - 130

SAMPLE RESULTS Method Result Replicate Precision Accuracy Blank Parameter (ucr /1) (ug/1) (» RSD) (% R) ua/1 Acetone <50 <50 Acrolein <20 <20 Acrylonitrile <20 <20 Benzene <2 <2 BroBofora <2 <2 Bromodichloromethane <2 <2 BroBonethane <2 <2 Carbon Bisulfide <100 <100 arbon Tetrachloride <2 130 <2 Chlorobenzene <2 <2 hlorodibroBoaethane <2 97 <2 Ch1oroethane <2 <2 2-Chloroethylvinylether <2 <2 Chloroform <2 100 <2 "hloromethane <2 <2 j.,2-Dichlorobenzene <2 <2 1,3-Dichlorobenzene <2 <2 1,4-Dichlorobenzene <2 <2 Dichlorodifluoromethane <2 <2 1,1-Dichloroethane <2 <2 1,2-Dichloroethane <2 94 <2 1,1-Dichloroethene <2 <2 t-l,2-Dichloroethene <2 <2 1,2-Dichloropropane <2 <2 c-l,2-Dlchloropropene <2 <2 t-l,2-Dichloropropene <2 <2 Sample No. C1703 Page of Continuation of TASK VOA/HATER 01 0500 Method Result Replicate Precision Accuracy Blank Parameter (ucr/1) (ug/1) (% RSD) (% R) ug/1

Ethylbenzene <2 <2 Fluorotrlchloroaethane <2 <2 2-Hexanone <1 Methylene Chloride <2 <2 Methyl Ethyl Ketone Methyl Isobutyl Ketone Paraldehyde <20 <20 Styrene <2 <2 1,1,2,2-Tetrachloroethane <2 <2 Tetrachloroethylene <2 <2 Toluene <2 <2 1,1,1-Trichloroethane <2 121 <2 .,1,2-Trichloroethane <2 <2 frichloroethylene <2 <2 Vinyl Acetate <10 Vinyl Chloride <2 <2 tt-Xylene <2 <2 o-Xylene <2 <2 p-Xylene <2 <2 EMB Sample No. C1704 / 7T 17) Page / -if 01 0501 I TASK VOA/HATERI Analysis Date 2-19-B7 Accuracy By: Matrix Spike DI Spike EPA QC SURROGATE RESPONSES Surrogate Solution No. Compounds in Solution % Recovery QC Limits Bronochloroaethane 106 70 - 130 l-bromo-2-chloroethane 99 70 - 130 Toluene, d6 94 70 - 130 1,4-dichlorobutane 100 70 - 130 1,9-decadiene 82 70 - 130

SAMPLE RESULTS Method Result Replicate Precision Accuracy Blank Parameter (ua/1) (% RSD) (% R) ucr/1 Acetone <50 <50 Acrolein <20 <20 Acrylonitrile <20 <20 Benzene <2 <2 Bronoforn <2 <2 Bronodichloronethane <2 <2 Bronomethane <2 <2 Carbon Bisulfide <100 <100 Carbon Tetrachlorlde <2 130 <2 Chlorobenzene <2 <2 Chlorodibromomethane <2 97 <2 Chioroethane <2 <2 2-Chloroethylvinylether <2 <2 Chloroforn <2 100 <2 Chioronethane <2 <2 1,2-DiChlorobenzene <2 <2 1,3-D1Chlorobenzene <2 <2 1,4-Dichlorobenzene <2 <2 Dichlorodifluoromethane <2 <2 1,1-Dichloroethane <2 <2 1,2-Dichloroethane <2 94 <2 1,1-Dichloroethene <2 <2 t-1,2-Dichloroethene <2 <2 1,2-Dlchloropropane <2 <2 c-1,2-Dichloropropene <2 <2 t-1,2-Dlchloropropene <2 <2 EMB Sample No. C1704 Page Continuation of TASK VOA/WATER 01 0502 Method Result Replicate Precision Accuracy Blank Parameter (ua/1) (ug/1) (% RSD) (% R) uq/1 Ethylbenzene <2 <2 Fluorotrichloronethane <2 <2 2-Hezanone <1 <1 Methylene Chloride <2 <2 Methyl Ethyl Ketone Methyl Isobutyl Ketone Paraldehyde <20 <20 Styrene <2 <2 1,1,2,2-Tetrachloroethane <2 <2 Tetrachloroethylene <2 <2 Toluene <2 <2 1,1,1-Trichloroethane * <2 121 <2 1,1,2-Trichloroethane <2 <2 Trichloroethylene <2 <2 Vinyl Acetate <10 Vinyl Chloride <2 <2 m-Xylene <2 <2 o-Xylene <2 <2 p-Xylene <2 <2 * Present at ug/1 EMB Sample No. C1705 Page 01 0503 I TASK VOA/WATER 1 Analysis Date 2-19-B7 Accuracy By: Matrix Spike DI Spike EPA QC X SURROGATE RESPONSES Surrogate Solution No. Compounds in Solution % Recovery QC LIalts Bronochloronethane 107 / 98 70 - 130 l-bromo-2-chloroethane 9B / 93 70 - 130 Toluene, d6 90 / 71 70 - 130 1,4-dichlorobutane 99 / 94 70 - 130 1,9-decadiene 82 / 86 70 - 130

SAMPLE RESULTS Method Result Replicate Precision Accuracy Blank Parameter (ug/1) (ua/1) (% RSD) (% R) ua/1 Acetone <50 <50 0.0 <50 Acroleln <20 <20 0.0 <20 Acrylonitrile <20 <20 0.0 <20 Benzene <2 <2 0.0 <2 Bromoform < 2 <2 0.0 <2 Broaodichloronethane <2 <2 0.0 <2 *)romome thane <2 <2 0.0 <2 Jarbon Dlsulfide <100 <100 0.0 <100 Carbon Tetrachloride <2 <2 0.0 130 <2 Chlorobenzene <2 <2 0.0 <2 Chlorodibromomethane <2 <2 0.0 97 <2 Chioroethane <2 <2 0.0 <2 2-Chloroethylvinyle1:her <2 <2 0.0 <2 Chloroform <2 <2 0.0 100 <2 Chioronethane <2 <2 0.0 <2 1,2-Dlchlorobenzene <2 <2 0.0 <2 1,3-Dichlorobenzene <2 <2 0.0 <2 1,4-Dlchlorobenzene <2 <2 0.0 <2 DichlorodlfluoroBethane <2 <2 0.0 <2 1,1-Dlchloroethane <2 <2 0.0 <2 1,2-Dichloroethane <2 <2 0.0 94 <2 1,1-Dichloroethene <2 <2 0.0 <2 t-l,2-Dichloroethene <2 <2 0.0 <2 1,2-Dichloropropane <2 <2 0.0 <2 c-l,2-Dichloropropene <2 <2 0.0 <2 t-l,2-Dichloropropene <2 <2 0.0 <2 EMB Sample No. C1705 Page

Continuation of TASK VOA/WATER 01 0504 Method Result Replicate Precision Accuracy Blank Parameter (uq/1) (ug/1) (% RSD) (% R) uq/1 Ethylbenzene <2 <2 0.0 <2 Fluorotrichloromethane <2 <2 0.0 <2 2-Hexanone <10 <10 0.0 <1( Methylene Chloride <2 <2 0.0 <2 Methyl Ethyl JCetone <10 <10 0.0 Methyl Isobutyl Ketone <10 <10 0.0 Paraldehyde <20 <20 0.0 <20 Styrene <2 <2 0.0 <2 1,1,2 , 2-Tetrachloroethane <2 <2 0.0 <2 Tetrachloroethylene <2 <2 0.0 <2 Toluene <2 <2 0.0 <2 1,1, 1-Tr ichloroethane <2 <2 0.0 121 <2 1,1, 2-Trichloroethane <2 <2 0.0 <2 Trichloroethylene <2 <2 0.0 <2 Vinyl Acetate <10 <10 0.0 Vinyl Chloride <2 <2 0.0 <2 m-Xylene <2 <2 0.0 <2 o-Xylene <2 <2 0.0 <2 p-Xylene <2 <2 0.0 <2 EMB Sample No. C1706 Page

01 0505 I TASK VOA/HATER1 Analysis Date 2-19-67 Accuracy By: Matrix Spike DI Spike EPA QC SURROGATE RESPONSES Surrogate Solution No. Compounds in Solution % Recovery PC Limits Bromochloromethane 104 70 - 130 l-bromo-2-chloroethane 96 70 - 130 Toluene, d6 94 70 - 130 1,4-dichlorobutane 9B 70 - 130 1,9-decadiene Bl 70 - 130

SAMPLE RESULTS Method Result Replicate Precision Accuracy Blank Parameter (u

Continuation of TASK VOA/KATER 01 0506 Method Result Replicate Precision Accuracy Blank Parameter (ua/1) (ucr/1) (\ RSD) (% R) ug/1 Ethylbenzene <2 <2 Fluorotrichloronethane <2 <2 2-Hexanone <1 Methylene Chloride <2 <2 Methyl Ethyl Ketone Methyl Isobutyl Ketone Paraldehyde <20 <20 Styrene <2 <2 1,1,2,2-Tetrachloroethane <2 <2 Tetrachloroethylene <2 <2 Toluene <2 <2 1,1,1-Trichloroethane <2 121 <2 1,1,2-Trichloroethane <2 <2 Trichloroethylene <2 <2 Vinyl Acetate <10 <10 Vinyl Chloride <2 <2 n-Xylene <2 <2 o-Xylene <2 <2 p-Xylene <2 <2