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Enviro -Chem , Inc . <br /> 1214 E . Lexington Avenue , Pomona , CA 91766 Tel ( 909 ) 590 -5905 Fax ( 909 ) 590 -5907 <br /> 82608 QA/QC Report <br /> Date Analyzed : 11120 - 21 /2019 Matrix : Wator/Liquid <br /> Machine : B Unit : u /L PPB <br /> Matrix Spike ( MS)/ Matrix Spike Duplicate ( MSD ) <br /> Spiked Sample Lab I . D , : 19111940 MS/MSD <br /> Analyte S . R . s k conc MS % RC MSD % RC % RPD JACP % RC ACP RPD <br /> Benzene 0 25 . 0 21 . 1 84 % 23 . 0 92% 8 % 75- 125 0-20 <br /> Chlorobenzene 0 25 . 0 22 . 8 91 % 25 . 0 100 % _ 9 % 75- 125 0-20 <br /> 1 , 1 - Dichloroethene 0 25 . 0 2004 82 % 21 . 2 85 % 3 % 75 - 125 0 -20 <br /> Toluene 0 25 . 0 23 . 1 92 % 25 . 1 _ 100 % 8 % 75- 125 0-20 <br /> Trichloroethene ( TCE ) 0 25 . 0 20 . 8 j 83 % 23 . 4 94 % 10 % 75- 125 0 -20 <br /> Lab Control Spike ( LCS <br /> Anal to s k conc LCS I % RC I ACP % RC <br /> Benzene 25 . 0 22 . 0 88 % 75 - 125 <br /> Chlorobenzene 25 . 0 23 . 6 94 % 75 - 125 <br /> Chloroform 25 . 0 21 . 1 84 % 75 - 125 <br /> 1 , 1 - Dichloroethene 25 . 0 1965 78 /0 75- 125 <br /> Eth ( benzene 25 . 0 24 . 0 96 % 75 - 125 <br /> o-X lene 25 . 0 19 . 8 79 % 75- 125Pk- <br /> m , -X lene 50 . 0 48 , 9 98 % 75- 125 �N�J �Rd <br /> N <br /> Toluene 25 . 0 23 . 8 95 % 75 - 125 OFP <br /> 1 , 1 , 1 -Trichloroethane 25 . 0 22 . 1 88 % 75- 125 <br /> Trichloroethene ( TCE 25 , 0 21 . 8 87 % 1 75 - 125 <br /> Surro ate Recover + s k conc ACP % RC MB %RC % RC % RC % RC % RC % RC % RC <br /> Sample I . D . M -BLK 181119 .40 191119 41 191719 .42 191119 -43 191119 .44 191119 45 <br /> Dibromofluoromethane 25 . 0 70- 130 98 % 90% 97 `ib 08 % 101 % 026/6 98 % <br /> To1uene-d8 25 , 0 70- 130 102 % 102 % 104 % 103_% 103 % 101 % 103% <br /> 4 - 13romofluorobenzene 250 70- 130 94 "/ 92 % 96% 83 % 9 :3 % 84 %, 100 % <br /> Surrogate Recover s �k conc ACP "/oRC % RC % RC % RC °/oRC °X RC 'YuRC `% RC <br /> Sample I . D . 1911194611911194 191119 -481191119 -461191119. 0 191119 -51 191119 .52 <br /> Dibromofluoromethane 25 . 0 70, 130 98 % 102 %� 97 % 102 % 100% 109 107% <br /> Toluene-d8 25 , 0 70- 130 81 % 84 % 81 % 80 '%I 81 % 103 % 105% <br /> 4- Bromofluorobenzene 25 . 0 70- 130 92 % 92 % 93% 91 % 94 % 88 % 911/16 <br /> Surro ate Recovery - <br /> 'AIL <br /> conc ACP % RC % RC % RC % RC % RC % RC % RC % RC <br /> Sample I . D . 191119 -53 191119 .54 191119 . 55 191119.56 191119 ,711191120 -41 <br /> DibromofIuoromethane 250 70 - 130 108% 107 % 98 % 10311K 98 % 93 % <br /> Toluene- d8 25 . 0 70 - 130 103 % 104% 102 % 103 % 103 % 101 % <br /> 4- Bromofiuorobenzene 25 , 0 70 - 130 92% 93 % 93 % 90 °/n 101 % 91 % <br /> * = Surrogate fail due to matrix interference; LCS, MS, MSD are in control therefore the analysis is in control. <br /> S. R. = Sample Results % RC = Percent Recovery <br /> spk conc = Spike Concentration ACP % RC = Accepted Percent Recovery <br /> MS = Matrix Spike MSD = Matrix Spike Duplicate <br /> Analyzed/Reviewed By . <br /> Final Reviewer : <br />