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youth Platte Combined Replacement Plan March 1, 2017 Page 11 of 19 this office does not appear to have a copy of the report itself. Therefore this office is unable to determine the validity of the conclusions reached by the report. Prior to use of these shares as a replacement source, the Applicant must provide documentation to support the claimed net annual yield of 85 acre-feet and estimated average annual consumptive use of 15.8 acre-feet for these shares. Centennial Lease Aggregate conveyed water rights in exchange for a perpetual lease of augmentation water in an agreement with Centennial Water and Sanitation District in 1996. The agreement requires Centennial to provide Aggregate with 30 acre-feet of fully consumable water each year. The rate of delivery for the 30 acre-feet cannot exceed 0.5 cfs, but can be taken at any time throughout the year. The Applicant is working on ways to bypass the Centennial credits past the Burlington Ditch for future SWSP approvals. This source may not be used until the Applicant has provided an executed agreement to bypass water through the Burlington, or another acceptable method to deliver the Centennial water to the point of depletions when the Burlington is sweeping the river. City of Longmont Lease For this SWSP period, the use of leased water from the City of Longmont is not necessary and is not proposed to be utilized. In the future, Aggregate may use leased water from the City of Longmont if a supplemental source of replacement water is needed. Godding, Dailey 6t Plumb Ditch The Applicant seeks to rely on a historic consumptive use analysis included in the SWSP request for the Distel Pit dated November 14, 2000. The historic consumptive use analysis did not compare actual monthly historical diversions to the monthly crop consumptive use (based on actual weather data), and therefore is not acceptable. Prior to use of these shares as a replacement source, the Applicant must provide a revised historic consumptive use analysis for the subject shares. The revised analysis must also identify the lands historically irrigated by the shares. Huett Seepage Ditch Prior to use of these shares as a replacement source, the Applicant must provide a full historic consumptive use analysis for the subject shares. 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 share in the Last Chance Ditch No. 2 found the per-share historic consumptive use to be significantly lower than the values referenced in the SWSP request. This office reserves the right to require a new historic consumptive use analysis for Aggregate's shares. Left Hand Ditch Company The Applicant seeks to rely on the historic 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 historic consumptive use of the shares. of � cOlo Office of the State Engineer 1313 Sherman Street, Room 821, Denver, CO 80203 P 303.866.3581 www.water.statexo.us �s7e •