City of Douglas, Wyoming, the Project Sponsor, Is Located in the Eastern Part of Central Wyoming and Is the County Seat of Converse County
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) 51.1248' (Douglas 98) . CITY OF DOUGLAS WATER SYSTEM MASTER PLAN LEVEL 1 Prepared for: WYOMING WATER DEVELOPMENT COMMISSION Prepared by: The SEAR-BROWN GROUP FORT COLLINS, COLORADO PROJECT NO. 677-003 THE July 1998 SEAR-BROWN GROUP Standards in Excellence THE SEAR-BROWN GROUP FULL-SERVICE DESIGN PROFESSIONALS FORMERLY RBD, INC. 209 SOUTH MELDRUM FORT COLLINS, COLORADO 80521~2603 July31, 1998 Wyoming Water Development Commission Herschler Building Cheyenne, WY 82002 Commission Members and Staff: The Sear-Brown Group, Inc. is pleased to present the enclosed Level 1 Water System Master Plan to the Wyoming Water Development Commission. We would like to thank everyone who has provided assistance in the preparation of this Master Plan. We believe this plan will provide a firm foundation for future decisions related to system growth and water supply, treatment, transmission, distribution and storage for the City of Douglas and neighboring developments. This project has been a rewarding experience for our staff and we look forward to providing further professional services for the Wyoming Water Development Commission. Sincerely, The Sear-Brown Group 1 ~{G lJohn lark, P .E. l'rOJ ect Manager NEW YORK• PENNSYLVANIA COLORADO• UTAH STANDARDS IN EXCELLENCE EQUAL OPPORTUNITY EMPLOYER TABLE OF CONTENTS SECTION PAGE 1. INTRODUCTION ••.•••..•••••.•••.•••••.•.•••••.•..•••••..•..•.•...•...•.....•.••.....•......••.••••••••...•.•.•..•••.••..•••••.•.••••.••••••••.•••..•••••••. 1 A. BACKGROUND ............................................................................................................................................ 1 B. SCOPE OF SERVICES .................................................................................................................................. 2 2. EXECUTIVE SUMMARY •••••••••••••.••••••••.••..•..•..•.•..•••..•.•.••....••.••••••••.•.•.••••.•••••...••..•••.•••.•.•....••••.••••••••••••••.•.•.•. 3 A. GENERAL ..................................................................................................................................................... 3 B. HISTORICAL CONSUMPTION ................................................................................................................... 3 c. FUTURE CONSUMPTION ........................................................................................................................... 5 D. WATER SUPPLY .......................................................................................................................................... 6 E. WATER TREATMENT ................................................................................................................................. 8 F. WATER TRANSMISSION AND DISTRIBUTION ....................................................................................... 8 G. PRESSlJRE ZONES ..................................................................................................................................... 10 H. FIRE PROTECTION.................................................................................................................................... 11 I. WATER STORAGE ..................................................................................................................................... 12 J. PUMP STATIONS ....................................................................................................................................... 13 K. CONSTRUCTION PERMITS ...................................................................................................................... 14 L. COST SUMMARY ...................................................................................................................................... 14 3. DESIGN CRITERIA••....•••••••.•.•••.•••••..••••.••••.......•....•....•....••.•.•.•...••••....••••••..••••••.•...•.•.•••••..••.••••••••••••••••••••••••• 17 A. LANDUSE .................................................................................................................................................. 17 B. WATER SUPPLY ........................................................................................................................................ 19 C. WATER QUALITY AND TREATMENT .................................................................................................... 19 D. WATER TRANSMISSION AND DISTRIBUTION ..................................................................................... 20 E. PRESSlJRE ZONES ..................................................................................................................................... 20 F. FIRE PROTECTION .................................................................................................................................... 20 G. WATER STORAGE..................................................................................................................................... 21 H. PUMP STATIONS ....................................................................................................................................... 22 4. SERVICE AREA AND WATER DEMANDS ..•...........•...........•.•...•.•••.••••••.•••.•••.•••••.•...•.•.•.•.•..••••••..•••••••••••• 23 A. SERVICE AREA .......................................................................................................................................... 23 B. GROWTH PROJECTIONS .......................................................................................................................... 23 C. WATER DEMANDS ................................................................................................................................... 29 1. HISTORICAL CONSUMPTION .............................................................................................................. 29 2. FUTURE CONSUMPTION ..................................................................................................................... 30 5. EXISTING SYSTEM ANALYSIS •.••...•.•.••••.••.••••.•.....•..•.•••.•.......•...•.•••••.•....•••.•...•.•••.•.•.•.•.•.•..•..•••.••••••••••••••• 33 A. GENERAL ................................................................................................................................................... 33 B. WATER SUPPLY ........................................................................................................................................ 35 C. WATER QUALITY ..................................................................................................................................... 43 D. WATER TREATMENT ..................................................................................................................................... 49 E. WATER TRANSMISSION AND DISTRIBUTION ..................................................................................... 55 F. PRESSlJRE ZONES ..................................................................................................................................... 62 G. FIRE PROTECTION .................................................................................................................................... 65 H. WATER STORAGE ..................................................................................................................................... 67 I. PUMP STATIONS ....................................................................................................................................... 69 6. FUTURE SYSTEM ANALYSIS .••••••.•.•••.••••..•.•.•..•..•.....•.••••..••.•...•.••.•.•...••••.•.•.•••••.••..•.••..•••.•••••.••••••.•••••••••••. 72 A. GENERAL ................................................................................................................................................... 72 B. WATER SUPPLY ........................................................................................................................................ 72 City of Douglas The Sear-Brown Group Water System Master Plan July 1998 c. WATER QUALITY ..................................................................................................................................... 75 D. WATER TREATMENT ............................................................................................................................... 75 E. WATER TRANSMISSION AND DISTRIBUTION ..................................................................................... 76 F. PRESSURE ZONES ..................................................................................................................................... 77 G. FIRE PROTECTION .................................................................................................................................... 79 H. WATER STORAGE ....................................................................................................................................