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2025 Speer Mining Resources SWSP Page 4 of 9 <br /> January 23, 2025 <br /> assumed to be perpendicular to the river. The lagged depletions due to evaporation during <br /> the SWSP period are shown in Table 3 and are estimated to total 5.23 acre-feet in 2025. <br /> Replacements <br /> Out-of-priority depletions associated with the mining operation at this site will be replaced <br /> using fully consumable municipal return flows leased from the City of Aurora ("Aurora") <br /> according to the attached agreement dated December 9, 2021. Under the lease, water will <br /> be delivered to the outfall of the Robert W. Hite Treatment Facility (aka Metro Sewer, WDID <br /> 0200700) located on the South Platte River. Aurora may alternatively deliver water at other <br /> points along a reach of the South Platte River beginning at or below the Hite Treatment <br /> Facility extending downstream to where the South Platte crosses the Adams/Weld County <br /> line at 168t" Avenue (aka Baseline Road). The Applicant must notify the Water Commissioner <br /> at least 48 hours prior to making replacement deliveries at a location other than the Hite <br /> Treatment Facility. <br /> In order to address the availability of lease water at the Hite Treatment Facility, the <br /> Applicant's obligation is to make monthly replacements as shown on Exhibit A of the <br /> attached lease extension, or as required by the Division Engineer or Water Commissioner to <br /> make daily replacements at a fairly constant rate. There will be no daily replacement <br /> requirement so long as the monthly amount is replaced, and not required more frequently by <br /> the Water Commissioner. <br /> The Hite Treatment Facility is located approximately 10.62 miles upstream of the Speer <br /> Mining Pit. The delivery schedule includes a transit loss of 0.5% per mile (5.31% for 10.62 <br /> miles) during the months of April through October and 0.25% per mile (2.655% for 10.62 <br /> miles) during the months of November through March. Conveyance loss for delivery of <br /> augmentation water to the South Platte River is subject to assessment and modification as <br /> determined by the Division Engineer. Any change to the assessed conveyance loss will be <br /> communicated to the Division 1 Call List via email. <br />