2023-08-22_HYDROLOGY - M2008017 - Laserfiche WebLink

Home Browse Search

Broken Arrow Z� Investments, LLC 801 8' Sheet, Suite 130 Greeley, CO 80631 August 22, 2023 Mr. Eric Scott Environmental Protection Specialist State of Colorado Division of Reclamation, Mining, & Safety 1313 Sherman Street— Room 215 Denver, CO 80203 RE: Broken Arrow Investments, LLC — File No. M-2008-017 Derr Pit — Summary for August Water Level Reporting Dear Mr. Scott, Broken Arrow Investments, LLC is providing this summary letter to discuss and provide information in regard to the August off-site an on-site monitor wells and provide the dewatering volumes pumped for July. During the month of July a total of 0.0 acre-feet was pumped and discharged into the on-site recharge ponds within the Derr Pit. AgPro was not able to get all the normal monthly readings/measurements on all of the off-site wells for the August readings as the Hoffner#2 Irrigation Well was being pumped for irrigation as well as the Bliss Irrigation Well. As discussed in our technical revision letter there are some on-site wells that were removed due to the slurry wall construction and those wells are no longer in place. Monitor Well 11 is no longer accessible and neither is Monitor Well 1. The on-site monitor wells saw increases and decreases in the elevation of the water levels. The water level elevations in the monitor wells on the Phase 1-4 portion of the pit went up on the south side by 0.69 feet and down by 0.07 feet on the north side. The water level elevations in the monitor wells on the upper terrace of the permit area increased by 0.49 feet for MW-14, decreased by 0.01 feet for MW-15, increased by 0.28 feet for MW-16, decreased by 0.59 feet for MW-17, and decreased by 0.48 feet for MW-18. Please give me a call at (970) 566-5090 or send an e-mail to discuss further. Sincerely, Kelly Hodge, Broken Arrow Investments, LLC