2025-09-18_HYDROLOGY - M1999034 - Laserfiche WebLink

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Holcim South Platte Combined SWSP September 18, 2025 Plan IDs 3614, 4773, 3624, 4772, 4616, 3437, 3376, 3650, 3668, 5475, 5829, &t 6243 Page 24 of 37 (amended March 6, 2015) and it is therefore classified as a lined reservoir. Deliveries from the Everist Star Reservoir would be to the Cache la Poudre River via a submersible pump. The headgate for the Greeley No. 3 Ditch is located between the point of depletion of the W.W. Farms Pit and the Everist Star Reservoir (downstream point of release). During times when the Greeley No. 3 Canal is calling for water, Holcim is not permitted to use the water released from the Everist Star Reservoir as a replacement source for depletions from the W.W. Farms Pit. Last Chance Ditch Company No. 2 The Applicant proposes to rely on a ditch-wide analysis of the Last Chance Ditch system performed by W.W. Wheeler and Associates summarized in a letter report dated April 16, 1990. Prior to use of these shares as a replacement source, the Applicant must provide a copy of said letter report to this office for review. Please note that several subsequent change cases involving a change of shares in the Last Chance Ditch No. 2 found the per-share historical consumptive use to be significantly lower than the values referenced in the SWSP request. This office reserves the right to require a new historical consumptive use analysis for Holcim's shares. Left Hand Ditch Company The Applicant seeks to rely on the historical consumptive use for the shares determined in case no. 87CW127. Prior to use of these shares as a replacement source, the Applicant must demonstrate that the shares have continued to be used in approximately the same way as considered in case no. 87CW127 since the decree was entered on June 5, 1991 (that there has been no change in circumstance), or the Applicant must take into account any periods of non-use or undecreed use in determining the actual historical consumptive use of the shares. Leggett-Owens Reservoir Prior to use of these shares as a replacement source, the Applicant must provide a full historical consumptive use analysis for the subject shares. Lupton Bottom Seep Ditches No. 1 and No. 2 Prior to use of these shares as a replacement source, the Applicant must provide a full historical consumptive use analysis for the subject shares. Martin Marietta Lease Holcim has previously utilized water from Martin Marietta Materials, Inc. as a replacement source in this SWSP. For this SWSP period, the use of leased water from Martin Marietta Materials, Inc. is not necessary and is not proposed to be utilized. In the future, Holcim may