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December 10 , 2019 Lab ID : STK1956431 <br /> Metal Finishing Solutions , Inc. Customer : 3 - 18181 <br /> Quality Control - Organic <br /> Constituent Method Date/ID Type Units Cone. QC Data DQO Note <br /> Organic <br /> Acetone 624 11 /08/ 19 :213063VRG Blank ug/L ND <25 <br /> MS ug/L 100.0 147 % 0-270 <br /> (SP 1915050-001 ) MSD ug/L 100 .0 146 % 0-270 <br /> MSRPD ug/L 9 .945 0.9% <43 <br /> 624 11 /08/ 19 :217720VRG CCV ug/L 100.0 121 % 20-367 <br /> crolein 624 11 /08/ 19 :213063VRG Blank ug/L ND <5 <br /> MS ug/L 200.0 27. 5 % 0- 171 <br /> (SP 1915050-001 ) MSD ug/L 200 .0 25 . 0 % 0- 171 <br /> MSRPD ug/L 9 .945 9 .7% <_50 <br /> 624 11/08/ 19 :217720VRG CCV ug/L 200.0 47. 3 % 1 20-209 <br /> Acrylonitrile 624 11 /08/ 19 : 213063VRG Blank ug/L ND <2 <br /> MS ug/L 200 .077.2 % 0-244 <br /> (SP 1915050-001 ) MSD ug/L 200.0 77. 6 % 0-244 <br /> MSRPD ug/L 9 .945 0 . 5 % 547 <br /> 624 11/08/ 19 :217720VRG CCV ug/L 200 .0 124 % 20-278 <br /> Benzene 624 11 /08/ 19 :213063VRG Blank ug/L ND <0.5 <br /> MS ug/L 10.00 115 % 65- 155 <br /> (SP 1915050-001 ) MSD ug/L 10. 00 114 % 65- 155 <br /> MSRPD ug/L 9 .945 0 . 8% <-21 <br /> 624 11 /08/ 19 :217720VRG CCV ug/L 10. 00 96,4 % 64- 136 <br /> j Bromodichloromethane 624 11 /08/ 19 :213063VRG Blank ug/L ND <0 . 5 <br /> MS ug/L 10. 01 93 . 3 % 62- 150 <br /> (SP 1915050-001 ) MSD ug/L 10. 01 96. 8 % 62- 150 <br /> MSRPD ug/L 9 .945 3 .6% <22 <br /> E - <br /> 624 11 /08/ 19 :217720VRG CCV ug/L 10.01 86, 8 % 65435 <br /> Bromoform 624 11 /08/ 19 :213063VRG Blank ug/L ND <0.5 <br /> MS ug/L 9 .940 70. 8 % 64- 150 <br /> (SP 1915050-001 ) MSD ug/L 9 .940 73 .4 % 64- 150 <br /> MSRPD ug/L 1 9.945 3 .6% < 16 <br /> 624 11 /08/ 19 :217720VRG CCV ug/L 9 .940 72, 9 % 71 - 129 <br /> Bromomethane (Methyl Bromide) 624 11 /08/ 19 :213063VRG Blank ug/L ND <0. 5 <br /> MS ug/L 10. 00 81 . 1 % 48- 196 <br /> (SP 1915050-001 ) MSD ug/L 10.00 89. 2 % 48- 196 <br /> MSRPD ug/L 9 .945 9.5% <24 <br /> 624 11/08/ 19 :217720VRGLBlank <br /> ug/L 10.00 116 % 14- 186 <br /> Carbon Disulfide 624 11 /08/ 19 :213063VRGug/L ND < 10 <br /> ug/L 100 .0 102 % 0-230 <br /> (SP 1915050-001 ) ug/L 100.0 101 % 0-230 <br /> u L 9 .945 1 .0% <72 <br /> 624 11 /08/ 19 :217720VRGug/L 100 .0 69, 9 % 20-242 <br /> Carbon Tetrachloride 624 11 /08/ 19 :213063VRG Blank ug/L ND <0. 5 <br /> MS ug/L 10.01 128 % 69-206 <br /> ( SP 1915050-001 ) MSD ug/L 10. 01 126 % 69-206 <br /> MSRPD ug/L 9 .945 1 1 .9% << 19 <br /> 624 111 /08/ 19 :217720VRG CCV ug/L 10.01 93 . 1 % 73- 127 <br /> hlorobenzene 624 11 /08/ 19 :213063VRG Blank ug/L NO <0.5 <br /> MS ug/L 9 . 975 103 % 69- 152 <br /> (SP 1915050-001 ) MSD ug/L 9 .975 107 % 69- 152 <br /> MSRPD ug/L 9.945 3 . 8% <24 <br /> 624 11/08/ 19 :217720VRG CCV ug/L 9 .975 94,0 % 1 66- 134 <br /> Chloroethane (Ethyl Chloride) 624 11 /08/ 19 :213063VRG Blank ug/L ND <0. 5 <br /> MS ug/L 10. 00 114 % 53-214 <br /> (SP 1915050-001 ) MSD ug/L 10. 00 110 % 53-214 <br /> MSRPD 1 L 9 .945 3 .3 % <32 <br /> Page 18 of 28 <br />