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Table 1 <br />March 2022 Depth to Groundwater Measurements and Groundwater Elevations <br />Holcim (US) Inc. <br />Florence, Colorado <br />Well <br />Number <br />Well <br />Diameter <br />(inches) <br />TOC <br />Elevation <br /> (ft amsl) <br />Depth to GW <br />March 2022 <br />(ft btoc) <br />Depth to <br />Well Bottom <br />March 2022 <br />(ft btoc) <br />GW Elevation <br />March 2022 <br />(ft amsl) <br />Total <br />Depth <br /> (ft bgs) <br />Screened <br />Interval <br />(ft bgs) <br />MW-7 4 5056.26 27.28 50.30 5028.98 47 17-42 <br />MW-9 4 5121.90 7.75 45.55 5114.15 42 17-37 <br />MW-11 2 5095.87 54.60 105.65 5041.27 103 58-103 <br />MW-12 2 5254.04 100.06 150.30 5153.98 148 103-148 <br />MW-13 2 5040.00 13.95 31.95 5026.05 30 15-30 <br />P-2 1.5 5079.46 5.50 29.05 5073.96 36 31-36 <br />P-3 1.5 5063.28 26.87 39.45 5036.41 37 32-37 <br />DP-1 2 5069.70 10.59 36.50 5059.11 34 24-34 <br />NP-1 2 5147.40 43.62 73.50 5103.78 70 60-70 <br />Notes: <br />ft amsl - Feet above mean sea level. <br />ft bgs - Feet below ground surface. <br />ft btoc - Feet below top of casing. <br />GW - Groundwater. <br />MW - Monitoring well. <br />NA - Not available. <br />P - Piezometer. <br />TOC - Top of casing. <br />Groundwater levels measured on March 24, 2022 <br />Page 1 of 1