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Cost Analysis of Water Rights and Availability for Lake Wright Patman and Lake O' the Pines

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wesley
16 diapositives · 282 Views · Aug 16, 2014

This report presents a detailed cost analysis of water rights associated with Lake Wright Patman and Lake O' the Pines by Espey Consultants. It outlines permitted and contracted water rights, including the estimation of available water volume, and examines potential operational yields from existing water rights holders. Additionally, it discusses the costs involved in development projects aimed at increasing water storage and efficiency in these regions. The analysis provides key insights into water resource management for the Commission of Region C.

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Cost Analysis of Water Rights and Availability for Lake Wright Patman and Lake O' the Pines
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  1. Region C Study Commission Wright Patman and Lake O’ the Pines Cost Analysis David Harkins Espey Consultants

  2. LAKE WRIGHT PATMANPermitted and Contracted Water Rights • Permitted Water Rights – Water Authorized for Diversion by Owner • Contracted Water Rights – Permitted Water Rights that have been sold or “Contracted” by the Owner • Un-Contracted Water Rights – Permitted Water Rights that have NOT been sold or “Contracted” by the Owner

  3. LAKE WRIGHT PATMANUn-contracted Water Rights (afpy) Certificate of Adjudication03-4836 TWDB Study Commission on Region C Water Supply, Phase I Revised Draft Report, 12-08-2009.

  4. LAKE WRIGHT PATMANPotentially Available Water (afpy)From Existing Water Rights Holders

  5. LAKE WRIGHT PATMANAdditional Sources of Water Additional Yield Gained by System Operation of Lake Wright Patman and Lake Jim Chapman is Estimated to be 108,000 afpy. Freese and Nichols, Inc., 2003, System Operation Assessment of Lake Wright Patman and Lake Jim Chapman, Volume I Main Report.

  6. Extent at Elevation 230 ft Extent at Elevation 240 ft Lake Wright Patman Area

  7. LAKE WRIGHT PATMANExpected Yield (afpy) Summary Top Elev./Bottom Elev. Total Available a 228.64 Max (flat) / 215.5 Min 363,717 b 183,717 230 Max (flat) / 215.5 Min 514,505 334,505 235 Max (flat) / 215.5 Min 671,800 491,800 240 Max (flat) / 215.5 Min 790,800 610,800 Estimated Yield Marvin Nichols 620,000 496,000 c a Available Yield of Wright Patman after current 180,000 afpy of Texarkana Water Rights are removed. b Freese and Nichols, Inc., 2003, System Operation Assessment of Lake Wright Patman and Lake Jim Chapman, Volume I. C 80 % of total Marvin Nichols Yield

  8. Lake Wright Patman Costs from 2011 RWP a180,000 ac-ft developed from increase in storage (elevation 228.64 ft) b100,000 ac-ft/year purchased from Texarkana, 108,000 ac-ft/year from system operation with Lake Chapman *until amortization

  9. Lake Wright-Patman Alternatives2011 RWP • Combination of projects • 182,000 ac-ft developed from increase in storage (raising conservation pool to elevation 228.64 ft) • 100,000 ac-ft/year purchased from Texarkana • 108,000 ac-ft/year gained from system operation with Lake Chapman • Substantial raw water improvement costs ($99.3M) to increase storage • Purchase storage and real estate from COE • Relocation of existing facilities • NEPA evaluation • Mitigation

  10. LAKE O’ THE PINESEstimated Available Water (afpy) Estimate what volume of water is available from Lake O’ the Pines including permitted water that has not been contracted below 228.5 feet msl. This will be accomplished through discussions with Northeast Texas Municipal Water District (NETMWD). Estimate volume of water available from existing water right holders (including contracts that may not be fully utilized)

  11. LAKE O’ THE PINESUn-contracted Water

  12. LAKE O’ THE PINESAdditional Water Estimates

  13. LAKE O’ THE PINESTotal Additional Water Available (afpy) Available Contract Water 67,000 Un-contracted Water 34,000 Total 101,000

  14. Lake O’ the Pines Routing Alternatives

  15. Lake O’ the Pines Cost Comparison

  16. QUESTIONS ?