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CEMEX Construction Materials South,LLC Table 1 Quarterly Report Y20 02 <br /> Moning Permit M1977-208 Summary of Analytical Results <br /> Lyons Quarry <br /> C-Pit CEM-001 CEM-004 CEM-005 CEM-004,CEM-005 <br /> Triggers(TR-12) <br /> 2029 Q3 2019 Q4 2020 Q1 2020 Q2 2019 Q3 2019 Q4 2020 Q1 2020 Q2 2019 Q3 2019 Q4 2020 Q3 2020 Q2 2019 Q3 2019 Q4 2020 Q1 2020 Q2 <br /> Parameter Units <br /> 9/26/2019 21/13/2019 3/18/2020 6/8/2020 8/6/2019 11/13/2019 3/18/2020 6/8/2020 9/26/2019 11/13/2019 3/18/2020 6/8/2020 'See dates 'See dates °See dates 'See dates <br /> below below below below <br /> value value value value value value value value value value value value value value value value <br /> pH(On-site) su io.62 10.75 10.89 10.73 8.8 8.08 7.97 7.99 7.54 7.86 731 ".i4 6.5-8.5 <br /> Chloride mg/L 1500 1370 1640 1890 1740 1800 1870 1790 2.6 35.1 304 4-2 1,053 <br /> Sulfate mg/L 2380 2190 1990 2300 12.5 17 9.9 29.1 19 168 1110 9.9 2,641 <br /> insufficient insufficientwater insufficient insufficient <br /> water to to sample water to sample water to sample <br /> Total Dissolved sample 501-50,000 or 1.25 times <br /> Solids mg/L 7550 695o 7920 928o 4420 4100 4180 4100 111 415 2270 97 background <br /> Selenium mg/L o.286 0.195 0.418 0.413 0.05200 0.03150 <0.0012 <o.0008 0.0012 o.0016 0.0050 <o.0008 0.05 <br /> Thallium mg/L 0.0011 0.0010 0.0011 0.0020 10.0004 <0.0004 <0.0004 <0.0004 <0.0004 <0.0004 <0.0004 <0.0004 0.002 <br /> Notes and Qualifiers: I . <br /> U Detection limit is estimated <br /> Ul Estimated low <br /> x Data may not be representative due to nonstandard field sampling protocol <br /> NA Not analyzed. <br /> value Exceeds trigger <br /> a CEM 005 W g Qz Well Sounding:5/1/2019 ands/x/zolq <br /> a CEM 005 Y19 Q3 Well Sounding:8/6/2oi9 and 8/7/2019 <br /> a CEM 005 Y1q Q4 Well Sounding:1l/13/zolq and 11/14/2019 <br /> 'CEM o05 Y20 Q1 Well Sounding:3/18/2020 <br /> 2020_C-Pit_Sampling_Results_Q2.xlsx 1 of 1 <br />