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Broken Arrow <br />Investments, LLC <br />801 8th Street, Suite 130 <br />Greeley, CO 80631 <br /> <br /> <br />September 26, 2022 <br /> <br /> <br />Mr. Eric Scott <br />Environmental Protection Specialist <br />State of Colorado <br />Division of Reclamation, Mining, & Safety <br />1313 Sherman Street – Room 215 <br />Denver, CO 80203 <br /> <br />RE: Broken Arrow Investments, LLC – File No. M-2008-017 Derr Pit – Summary for September <br />Water Level Reporting <br /> <br /> <br />Dear Mr. Scott, <br /> <br />Broken Arrow Investments, LLC is providing this summary letter to discuss and provide information <br />in regard to the September off-site an on-site monitor wells and provide the dewatering volumes <br />pumped for August. <br /> <br />During the month of August a total of 0.0 acre-feet was pumped and discharged into the on-site <br />recharge ponds within the Derr Pit. <br /> <br />AgPro was able to get the normal monthly readings/measurements on all of the off-site wells for the <br />August readings except for the Hofner #2 irrigation well and Bliss irrigation well as these wells were <br />operating. As discussed in our technical revision letter there are some on-site wells that were <br />removed due to the slurry wall construction and those wells are no longer in place. Monitor Well 11 <br />is no longer accessible and neither is Monitor Well 1. Some of the on-site monitor wells saw an <br />increase and some saw a decrease in the elevation of the water levels. The water level elevations <br />in the monitor wells on the Phase 1-4 portion of the pit went down on the south side by 0.70 feet <br />and up by 0.09 on the north side. The water level elevations in the monitor wells on the upper <br />terrace of the permit area decreased by 0.15 feet for MW-14, increased by 0.01 feet for MW-15, <br />increased by 0.35 feet for MW-16, MW-17 was repaired and the stick up is taller after the repair so <br />the reading was a depth of 44.47 feet below ground, and increased by 0.21 feet for MW-18. <br /> <br /> <br />Please give me a call at (970) 566-5090 or send an e-mail to discuss further. <br /> <br />Sincerely, <br /> <br /> <br /> <br /> <br /> <br />Kelly Hodge <br />Broken Arrow Investments, LLC