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February 20, 2019 Lab ID : STK1931316 <br /> Aramark Uniform- Customer : 3-17510 <br /> Quality Control- Organic <br /> Constituent Method Date/ID Type Units Cone. QC Data DQO Note <br /> Organic <br /> 1,2-Dichloroethane(EDC) 5030B 02/18/19:201789VRG Blank ug/L ND <0.5 <br /> ExBlk a /L 0.000 12.5 <br /> 1,2-Dichloroethane-d4 5030B 02/18/19:201789VRG Blank ug/L 25.00 85.3% 58-144 <br /> ExBlk ug/L 0.0% N/A <br /> LCS ug/L 25.00 92.0% 58-144 <br /> MS ug/L 25.00 91.1% 58-144 <br /> (CH 1970997-001) MSD ug/L 25.00 81.8% 58-144 <br /> MSRPD a /L 25.00 10.8% <20.0 <br /> 1,4-Dichlorobenzene 5030B 02/18/19:201789VRG Blank ug/L ND <0.5 <br /> ExBlk a /L 0.000 12.5 <br /> Butanone(MEK) 5030B 02/18/19:201789VRG Blank ug/L ND <10 <br /> ExBlk ug/L 0.0 250 <br /> Bromofluorobenzene 5030B 02/18/19:201789VRG Blank ug/L 25.00 107% 78-123 <br /> ExBlk ug/L 0.0% N/A <br /> LCS ug/L 25.00 106% 78-123 <br /> MS ug/L 25.00 108% 78-123 <br /> (CH 1970997-001) MSD ug/L 25.00 101% 78-123 <br /> MSRPD a /L 25.00 6.9% <20.0 <br /> Benzene 5030B 02/18/19:201789VRG Blank ug/L ND <0.5 <br /> ExBlk ug/L 0.000 12.5 <br /> LCS ug/L 25.00 102% 60-134 <br /> MS ug/L 25.00 60.7% 47-169 <br /> (CH 1970997-001) MSD ug/L 25.00 71.9% 47-169 <br /> MSRPD a /L 25.00 17.0% <24 <br /> Carbon Tetrachloride 5030B 02/18/19:201789VRG Blank ug/L ND <1 <br /> ExBlk a /L 0.00 25 <br /> Chlorobenzene 5030B 02/18/19:201789VRG Blank ug/L ND <0.5 <br /> ExBlk ug/L 0.000 12.5 <br /> LCS ug/L 25.00 94.7% 56-152 <br /> MS ug/L 25.00 49.4% 31-212 <br /> (CH 1970997-001) MSD ug/L 25.00 75.5% 31-212 <br /> MSRPD a /L 25.00 41.9% <27 435 <br /> Chloroform 5030B 02/18/19:201789VRG Blank ug/L ND <1 <br /> ExBlk a /L 0.00 25 <br /> ibromofluromethane 5030B 02/18/19:201789VRG Blank ug/L 25.00 96.3% 65-125 <br /> ExBlk ug/L 0.0% N/A <br /> LCS ug/L 25.00 89.1% 65-125 <br /> MS ug/L 25.00 95.8% 65-125 <br /> (CH 1970997-001) MSD ug/L 25.00 98.0% 65-125 <br /> MSRPD u /L 25.00 2.3% <20.0 <br /> Tetrachloroethylene(PCE) 5030B 02/18/19:201789VRG Blank ug/L ND <0.5 <br /> ExBlk ug/L 0.000 12.5 <br /> Toluene-d8 5030B 02/18/19:201789VRG Blank ug/L 25.00 114% 92-107 <br /> ExBlk ug/L 0.0% N/A <br /> LCS ug/L 25.00 114% 92-107 330 <br /> MS ug/L 25.00 119% 92-107 435 <br /> (CH 1970997-001) MSD ug/L 25.00 106% 92-107 <br /> MSRPD u /L 25.00 11.9% <20 <br /> Trichloroethylene(TCE) 5030B 02/18/19:201789VRG Blank ug/L ND <0.5 <br /> ExBlk ug/L 0.000 12.5 <br /> LCS ug/L 25.00 80.8% 61-123 <br /> MS ug/L 25.00 57.2% 41-167 <br /> (CH 1970997-001) MSD ug/L 25.00 67.4% 41-167 <br /> MSRPD u /L 25.00 16.4% <32 <br /> Page 7 of 1 1 <br />