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CEMEX Construction Materials South,LLC Table 1 Quarterly Report Y21 Q4 <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 /> 2021 Qi 2022 Q2 2021 Q3 2021 Q4 2021 Q2 2021 Q2 2021 Q3 2022 Q4 2021 QS 2021 Q2 2021 Q3 2021 Q4 2021 Qi 2021 Q2 2021 Q3 2021 Q4 <br /> Parameter Units <br /> 3/2/2021 5/17/2021 8/12/2021 11/10/2021 3/2/2021 5/17/2021 9/12/2021 11/20/2021 3/2/2021 5/17/2021 8/11/2021 11/10/2021 a See dates a See dates a 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 12-43 11.46 11.9 12.4 7.82 7.74 7.88 8.3 7.23 7.46 7.51 8.8 6.5-8.5 <br /> Chloride mg/L 1650 1470 1930 2440 1880 1830 1640 1820 40.5 9.6 0.58 58.1 1,053 <br /> Sulfate mg/L 2900 16io 1580 2030 25.8 32.9 14.6 34.3 242 17 3 1.2 428 2,641 <br /> insufficient nwfficient water insufficient insufficient <br /> water to sample water to <br /> to sample water to sample <br /> Total Dissolved pe sample 501-10,000 or 1.25 times <br /> Solids mg/L 8720 7350 8030 8550 4530 4290 4190 2570 487 114 83 776 background <br /> Selenium mg/L 0.407 0.422 o.690 0.787 0.0462 <0.00S o.0006 <0.0008 0.0021 <0.005 <0.0004 0.0020 0.05 <br /> Thallium I mg/L 0.0027 <0.004 0.0028 0.0025 <0.0004 <0.004 <0.0002 <0.0004 <0.0004 <0.004 <0.0002 <0.0004 0.002 <br /> Notes and Qualifiers: <br /> H Sample analyzed beyond recommended hold time <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 Yet Q1 Well Sounding:3/212021 <br /> a CEM 005 Y21 Q2Well Sounding:5/1712021 <br /> aCEM 005 Yzi Q3Well Sounding:8/12/2021 <br /> 'CEM oo5 Y21 Q4Well Sounding:11/1 012 0 21 <br /> 2021_C-Pit_Sampling_Results_Q4.xlsx 1 of 1 <br />