Trouble Viewing?
Total Page:16
File Type:pdf, Size:1020Kb
This is a digital document from the collections of the Wyoming Water Resources Data System (WRDS) Library. For additional information about this document and the document conversion process, please contact WRDS at [email protected] and include the phrase “Digital Documents” in your subject heading. To view other documents please visit the WRDS Library online at: http://library.wrds.uwyo.edu Mailing Address: Water Resources Data System University of Wyoming, Dept 3943 1000 E University Avenue Laramie, WY 82071 Physical Address: Wyoming Hall, Room 249 University of Wyoming Laramie, WY 82071 Phone: (307) 766-6651 Fax: (307) 766-3785 Funding for WRDS and the creation of this electronic document was provided by the Wyoming Water Development Commission (http://wwdc.state.wy.us) PROJECT STATUS REPORT SHOSHONE / LAKEVIEW 5 WATER DEVELOPMENT PROJECT ....fIl ~ tI) ~ ~ Q ~ fIl o ~ 0 ~ ~ 5 ~~ E---4 fIl _\0 ~~ ~~~ ~~ta r o ~ ~ ~~ ~~:-9~o ~~~~~ SEPTEMBER, 1985 JAMES M. MONTGOMERY, CONSULTING ENGINEERS. INC. JAMES M. MONTGOMERY, CONSULTING ENGINEERS, INC. 1301 Vista Avenue Argonaut Building, Suite 210, BOise. Idaho 83705 1(208) 345-5865 1499.0012/13 September 19, 1985 Wyoming Water Development Commission Herschler Building, 3rd Floor, East Wing Cheyenne, WY 82002 Subject: Shoshone/Lakeview Water Development Project Dear Commission Members: Presented in this Project Status Report is a work-in-progress summary of the Level II Feasibility Study of the Cody Canal/Lakeview Conveyance System {Lakeview} Project and the Shoshone Municipal Water Supply {Shoshone} Project. The Level II Feasibility Study is intended to provide engineering and economic analyses by which the Cody Canal Irrigation District, Lakeview Irrigation District, Municipal Water Development Association {MWDA}, and Wyoming Water Development Commission can evaluate the merits of the projects and if found feasible, pursue Level m design funding from the Wyoming State Legislature. It should be noted that the information provided in this Project Status Report is preliminary in nature in that it has not been reviewed in detail by the Wyoming Water Development Commission staff, nor has a complete "in-house" Montgomery Engineers review been conducted. Detailed review has also not been provided by the sponsoring irrigation districts and communities. The Project Status Report is, however, a detailed and comprehensive summary of a preliminary draft Lakeview Level II Report and draft Shoshone Level II Technical Memoranda which has been reviewed by WWDC staff. WWDC/MWDA/Irrigation Districts negotiations and discussions relative to project funding and implementation will be initiated in the near future and final Level II Feasibility Reports completed. The Project Status Report is divided into three sections: Section I: Brief Executive Summary of key information on both the Shoshone and Lakeview Projects PLANNING ... RESEARCH ... ENVIRONMENTAL ENGINEERING JAMES M. MONTGOMERY. CONSULTING ENGINEERS. INC. Argonaut Building, Suite 210, 1301 Vista Avenue, Boise, Idaho 83705, (208) 345-5865 Wyoming Water Development Commissidn- September 19, 1985 Section II: Cody Canal/Lakeview Exchange Project Summary Section m: Shoshone Municipal Water Supply Project Summary Respectfully submitted, JAMES M. MONTGOMERY, CONSULTING ENGINEERS, INC. ~i,~.~~~ Project Manager Daniel P. Wetstein Proj ect Engineer - Shoshone .6?.......... ~1c::a. m -d~1- Dennis M. Suihkonen Proj ect Engineer - Lakeview TABLE OF CONTENTS Page No. SECTION I - EXECUTIVE SUMMARY Executive Summary I-I Lakeview Project 1-2 Project Intent 1-2 Water Demands/Usage 1-2 Crop Irrigation Demand 1-2 Historical Irrigation Water Diversion 1-2 Irrigation System Efficiency 1-2 Water Shortage 1-2 Improvement Requirements for Exchange 1-3 Improvement Costs 1-3 Crop Value Benefit I-3 Benefi t-to-Cost Ratio 1-3 Alternatives to Lakeview Exchange 1-4 Shoshone Municipal Supply Project 1-5 Project Intent 1-5 Water Demands 1-5 Water Storage Requirements 1-5 Winter Pumping Station/Transmission 1-6 Winter Storage 1-6 Buffalo Bill Reservoir (BBR) Diversion/ Conveyance Alternatives 1-6 Option 1 - Shoshone Municipal Supply Only 1-6 Option 2 - Combined Diversion With the Lakeview Exchange; Cody Canal Utilized for Potable Water Supply 1-6 Option 3 - Combined Diversion With the Lakeview Exchange; Cody Canal Not Utilized for Potable Water Supply 1-7 Diversion/Conveyance Cost Estimates 1-7 Water Treatment 1-7 Water Transmission (Treatment Plant to Communities) 1-8 Communities Served 1-8 Capacity and Hydraulics 1-8 Transmission Line Costs 1-8 SECTION n - CODY CANAL/LAKEVIEW EXCHANGE PROJECT Introduction II-I Lakeview Water Demands II-2 Water Rights and Supply II-6 Water Rights II-6 Other Water Rights II-6 Water Supply II-7 Estimated Lakeview Water Shortage II-7 TABLE OF CONTENTS (continued) Page No. Exchange Improvements II-7 Cost Analysis II-8 Crop Value Analysis II-8 Exchange Improvement Costs II-9 Capital Costs II-9 Operation & Maintenance Costs II-I 2 Benefit to Cost Ratio II-I 2 Lakeview Irrigation District Upgrade Costs II-I 5 SECTION m - SHOSHONE MUNICIPAL SUPPLY PROJECT Introduction m-I Water Supply Alternatives During Shoshone Conduit Shutdown m-I Winter Supply Options m-I Water Demands m-I Storage Requirements m-2 Buffalo Bill Reservoir Diversion/ Conveyance Alternatives m-3 Option I - Shoshone Municipal Supply Only m-3 Option 2 - Combined Diversion With the Lakeview Exchange; Cody Canal Utilized for Potable Water Supply m-3 Option 3 - Combined Diversion With the Lakeview Exchange; Cody Canal Not Utilized for Potable Water Supply m-4 Winter Pumping Station and Transmission Line ill-4 Downstream Winter Storage m-4 Hydrogeology/Water Quality ill-5 Future Operations m-6 Project Cost Estimates m-6 Buffalo Bill Reservoir Diversion m-6 Option I - Shoshone Municipal Supply Only m-6 Option 2 - Combined Diversion; Cody Canal Utilized for Potable Water Supply ill-7 Option 3 - Combined Diversion; Cody Canal Not Utilized for Potable Water Supply ill-7 Winter Pumping Station & Transmission Line m-7 Downstream Winter Storage ill-7 Summary and Recommendations m-7 BBR Diversion ill-7 Winter Supply ill-I 3 Water Treatment m-I3 Treatment Process m-I3 Recommendations of the Update Study ill-I 3 THM and Taste/Odor Control m-I4 Summary Process Recommendations m-I4 TABLE OF CONTENTS (continued) Page No. Use of Existing Treatment Plant m-I4 Siting m-I8 Plant Layout m-I8 Phasing and Cost Construction of Project m-I8 Summary and Recommendations m-zo Transmission Pipeline m-zo Communities Served and Alignment m-zo Capacity and Hydraulics m-zz Appurtenances m-zz Transmission Pipeline Cost Estimate m-Z3 LIST OF TABLES Table No. Page No. CODY CANAL/LAKEVIEW EXCHANGE PROJECT I Calculated Lakeview Consumptive Use and Demand Neglecting Precipitation II-3 2 Calculated Lakeview Irrigation Requirement and Demand Considering Precipitation II-4 3 Range of Historical Lakeview Diversions II-S 4 Lakeview Water Rights II-6 S Value of Lakeview Irrigation District Production & Unrealized Potential Production II-I 0 6 The Value of Increased Production on the Lakeview Irrigation District with an Enhanced Water Supply II-II 7 Exchange Improvement Costs II-I 3 8 Exchange Improvements Annualized Cost II-I4 SHOSHONE MUNICIPAL SUPPLY PROJECT 1 Shoshone Municipal Supply Project Estimated Water Demands m-I 2 Shoshone Municipal Supply Winter Water Storage Requirements m-3 3 Option 1 - BBR Diversion Project Development Cost Estimate m-8 4 Option 2 - BBR Diversion Project Development Cost Estimate m-9 S Option 3 - BBR Diversion Project Development Cost Estimate m-IO 6 Winter Pumping Station & Transmission Line Project Development Cost Estimate m-Il 7 Downstream Winter Storage Project Development Cost Estimate m-I2 8 Cody Regional Treatment Plant Design Criteria m-IS 9 Cost Estimate Comparison Single Plant Versus Two Plant (Initial Construction) m-19 10 Cost Estimate for Initial Construction of Cody Regional Water Treatment Plant m-2I 11 Transmission Pipeline Cost Estimate m-24 LIST OF FIGURES Following Figure No. Page No. CODY CANAL/LAKEVIEW EXCHANGE PROJECT 1 Exchange Agreement Schematic IT-I 2 South Fork Shoshone River Hydrographs IT-7 3 Estimated Lakeview Shortage at Mean Supply Condition IT-7 4 Estimated Lakeview Shortage at 80% Supply Condition IT-7 5 Conveyance Pipeline Plan and Profile IT-7 6 Cody Canal Facilities IT-8 7 Typical Gate-Type Check Structure IT-8 SHOSHONE MUNICIPAL SUPPLY PROJECT 1 Seasonal Fluctuation in Domestic Water Demand for the City of Cody ID-2 2 Omitted 3 BBR Diversion Option 1 ID-3 4 BBR Diversion Option 2 ID-4 5 BBR Diversion Option 3 ID-4 6 Winter Supply Pumping Station and Transmission Line ID-4 7 Winter Pumping Station Schematic ID-4 8 Winter Storage System ID-5 9 Process Schematic/Hydraulic Profile for Shoshone Supply Regional Water Treatment Plant ID-14 10 Area Plan of Existing and Proposed Water Treatment Facilities ID-19 11 Site Plan for Shoshone Supply Regional Water Treatment Plant ID-19 12 Project Phasing Plan for Shoshone Supply Regional Water Treatment Plant ID-20 13 Proposed Shoshone Municipal Pipeline Corridor ID-21 EXECUTIVE SUMMARY This Executive Summary is intended to provide the reviewer with a brief overview of key project considerations and information for both the Lakeview Project and Shoshone Projects. More detailed Lakeview and Shoshone evaluations are provided in Sections II and m, respectively. I-I LAKEVIEW PROJECT PROJECT INTENT The Lakeview Irrigation District has indicated it is periodically unable to divert sufficient water for irrigation of crops from the