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CEMEX Construction Materials South,LLC Table 1 Quarterly Report Y21 Q1 <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 /> 2020 Q2 2020 Q3 2020 Q4 2021 Ql 2020 Q2 2020 Q3 2020 Q4 2021 Q1 2020 Q2 2020 Q3 2020 Q4 2021 Q1 2020 Q2 2020 Q3 2020 Q4 2021 Q1 <br /> Parameter Units <br /> 6/8/2020 8/25/2020 11/2/2020 3/2/2021 6/8/2020 8/25/2020 11/2/2020 3/2/2021 6/8/2020 8/25/2020 11/2/2020 3/2/2021 'See dates 'See dates 'See dates 'See dates <br /> below below below below <br /> value value value value value value value value value vale value value value value value value <br /> pH(On-site) so 10.73 10.52 12.26 12.43 799 7.98 8.2 7.81 8.34 7.96 7 94 7.23 6.5-8.5 <br /> Chloride mg/L 18go 1700 1520 165o 1790 1710 1780 188o 4.2 1.8 6 40.5 1,053 <br /> Sulfate mg/L 2300 266o 2180 1900 29.2 21 23.9 H 15.8 9-9 7.5 22.5 242 2,641 <br /> insufficient Insufficient water insufficient Insufficient <br /> Total Dissolved <br /> water to to sample water to sample water to sample <br /> 501- <br /> Solids ntg/L sample 10,000 or 1.25 times <br /> gz8o 8g8o 7650 87zo yloo 4250 3960 4530 97 99 118 y87 background <br /> Selenium mg/l 0.413 0.288 0.349 0.407 <0.0008 <0.0008 <0.0008 0.0462 <0.0008 0.0012 0.0008 0.0011 0.05 <br /> Thallium mg/l o.00zo 0.0010 0.0010 0.0017 <0.0004 <0.0004 <0.0004 <0.0004 <0.0004 <0.0004 <0.0004 <0.o004 0.002 <br /> i 1 9 <br /> Notes and Qualifiers: <br /> H Sample analyzed beyond reccommended 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 Vzo Q2 Well Sounding:6/8/2o2o <br /> a CEM 005 Yzo Q3 Well Sounding:8/25/2ozo <br /> a CEM 005 Y20 Q4 Well Sounding:ll/3/2020 <br /> 'CEM 005 Y21 Qt Well Sounding:3/2/2021 <br /> 2021_C-Pit Sampling_Results_QI.xlsx 1 of 1 <br />