Rifle_WCPlan2008

• Project Type: Water Conservation Plan
• Contract/PO #: OE PDA 08-17
• Applicant: City of Rifle
• Project Name: City of Rifle Water Conservation Plan
• Title: City of Rifle Water Conservation Plan Final Report - July 2008
• Date: 7/1/2008
• County: Garfield
• Water Conservation - Doc Type: Complete Plan

City of Rifle Water Conservation Plan
Final Report -July 2008
Table 7-2: Projected 20-Year Potable Water System Capital Improvement Costs
for "Conservation" Case
Projected Capital Improvement Costs (in $M in year 2006)
Year GMWTP/New WTP BCWTP Dist. & Stora a Others
2008 $0.04 $0.200 $0.100
2009 $0.26 $0.315 $0.315 $0.010
2010 $0.48
2011 $0.40 $7.030
2012 $0.03
2013 $0.040
2014
2015
2016 $0.320 $0.150
2017 $23.35 $2.60 $0.040
2018
2019 $2.55
2020
2021 $1.300 $0.025
2022
2023 $0.040
2024 $2.93
2025
2026
2027
2028
2029
2030
2031 $2.60
Totals $29.2 X8.7 X6.8 $0.44
1. Consists primarily of various evaluations/studies
7.3 Conservation Effect on Water Supply Needs
Detailed water accounting calculations were made, in accordance with the City's current
augmentation plan, to calculate Colorado River depletions that would occur through 2027
due to out-of priority diversions required in both the "no conservation" and
"conservation" scenarios. The base assumption is that when the City's current Ruedi
Reservoir contract for stored augmentation water expires in 2019, the City will need to
purchase additional storage to cover these depletions. The analysis accounts for an
additional 124 ac-ft/yr due to dry up of existing historical irrigation rights it owns that
have not yet been converted to depletion credits through an augmentation plan. The
analysis does not account for the possibility that future developers will dedicate
significant senior water rights to the City upon annexation. If sufficient rights are
transferred, the City may not need to acquire any augmentation water within the study
period. However, based on the assumptions used, the analysis indicates that:
• A total of 13 ac-ft, occurring only in the last year of the study period, 2027, would
need to be augmented in the "conservation" case.
• A total of 446 ac-ft, occurring over 2022 through 2027, with a maximum of 148 ac-ft
in 2027, would need to be augmented in the "no conservation" case.
SGM # 99055A-388 39 Integrated Resources and
Modified Forecasts