Colorado River Water Supply Report

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46% Colorado River Water 84% Supply Report 48% System Contents: 25.10 MAF 62% Lake Powell 3,700’ Crystal As of January 25, 2021 40%, 9.73 MAF Reservoir Current Elevation 91% 3,577’ Reservoir Capacities (MAF) 1,220’ Lake Mead Mid-Elevation 63% Reservoir Current Change* Maximum Release 3,575’ 40%, 10.57 MAF Lake Mead 10.47 + 0.16 25.90 Current Elevation 1,085’ Lake Powell 9.73 - 0.47 24.30 Tier 1 Shortage Flaming Gorge Reservoir 3.15 - 0.01 3.75 1,075’ Fontenelle Reservoir 0.16 - 0.03 0.34 Navajo Reservoir 1.07 - 0.01 1.70 Blue Mesa Reservoir 0.40 0.00 0.83 Morrow Point Reservoir 0.11 0.00 0.12 Crystal Reservoir 0.02 0.00 0.03 * With respect to previous month’s report 1 PRESENTATION TITLE | DD.MM.YY As of 1/26/2021, snow accumulation in the Green River Basin (which contributes ~33% of the flows into Lake Powell) is at 6.0 in. (blue line), which is 67% of the 30-year median for this date of 9.0 in. (purple line) and is approximately half of last year’s SWE for this date (green line). Snow accumulation in the Upper Colorado River Basin (contributes ~42%) to date is at 6.2 in., which is 71% of the 30-year median for this date of 8.7 in. Snow accumulation in the San Juan River Basin (contributes ~13%) to date is at 10.7 in., which is 88% of the 30-year median for this date of 12.2 in. For the overall Colorado River Basin above Lake Powell, the snow accumulation to date is at 6.6 in., which is 71% of the 30-year median for this date of 9.2 in. Powell Pool Elevations - January 2021 24-Month Study 3,700 WY 2020 Equalization Line = 3,657' WY 2021 Equalization Line = 3,659' WY 2022 Equalization Line = 3,660' 3,650 Upper Elevation Balancing Tier 3,600 3,575' Mid Elevation Release Tier 3,550 3,525' 3,500 EOCY 2022 Lower Elevation Balancing Tier MAX = 3,623' MOST = 3,578' Powell Pool Elevation (ft amsl) (ft Elevation Pool Powell EOCY 2021 MIN = 3,519' 3,450 MAX = 3,578' MOST = 3,559' MIN = 3,537' Current Month Current 3,400 Bottom of Lower Elevation Balancing = 3,370' 3,350 12/31/2019 12/30/2020 12/31/2021 12/31/2022 | MOST MIN MAX Historic Mead Pool Elevations - January 2021 24-Month Study 1,140 1,120 EOCY 2021 MAX = 1,089' MOST = 1,070' EOCY 2022 MIN = 1,068' MAX = 1,080' MOST = 1,057' 1,100 MIN = 1,054' 1,090' Tier 0 1,080 1,075' Tier 1 1,060 Mead Pool Elevation (ft amsl) (ft Elevation Pool Mead 1,050' Tier 2 1,040 Month Current 1,025' Tier 3 1,020 12/31/2019 12/30/2020 12/31/2021 12/31/2022 | MOST MIN MAX Historic.

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Cogjm.Larson Letter Crsp 02-08-1951
, UNITED STATES DEPAkTYEhT O~'THE INfERIOR BUREAU OF RECLAMATION REGION 4 Post Office Box 360 Salt Lake City 10, Utah February 8, 1951 To the Editor: The enclosed press release, ma..!7&, and physical data on the potential Colorado River Storage Project and Participating Projects may prove valuable as source material in future reporting of the Upper Colorado River Basin development. Although the project report has been approved by the Secretary of the Interior there will not be enough copies for general distri- bution until and if the report is printed as a Senate Document. The accompanying fact sheets should give you sufficient data, however, until reports are available upon request. As you know the report is now being reviewed by federal agencies and the governors of the basin states. Under the Flood Control Act of 1944, they have approximately until May 1, 1951, to submit their comments to the Secretary of the Interior for subsequent submission with the report to the President and the Congress. E. O. Larson Regional Director DEPARTM:!::HTOF THE INTl::RIOR ~r:tEAU OF !t&CLA";:ATIO~T News release for Wednesday, Jan. 31, 1951 - 10 AI', KST UPPER COLORltDO RIVER DEVELOPMENT REPO:lT ft.PPROVEDBY SECRETARY CHft.PMAN A plan for development of the water and power resources of the Upper Colorado River Basin, which drains portions of five Rocky Mountain States, has been approved by Secretary of the Interior Oscar L. Chapman and sent to the Colorado River Basin States (Utah, Colorado, Wyoming, New Mexico, Arizona, Nevada, and California) for comment. The plan is in the fo~ of a Bureau of Reclamation Planning Report entitled "The Colorado River Storage Project and Participating Projects, Upper Colorado River Basin." The Report, which also goes to other Federal Agencies for review and comment, envisions the eventual construction by the Bureau of Reclamation of 10 dams and reservoirs with storage capacity of 48.5 million acre-feet of water and 1,622,000 kilowatts of hydroelectric cape.city and nume rous partici- pating irrigation projects.
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Colorado River Slideshow Title TK
The Colorado River: Lifeline of the Southwest { The Headwaters The Colorado River begins in the Rocky Mountains at elevation 10,000 feet, about 60 miles northwest of Denver in Colorado. The Path Snow melts into water, flows into the river and moves downstream. In Utah, the river meets primary tributaries, the Green River and the San Juan River, before flowing into Lake Powell and beyond. Source: Bureau of Reclamation The Path In total, the Colorado River cuts through 1,450 miles of mountains, plains and deserts to Mexico and the Gulf of California. Source: George Eastman House It was almost 1,500 years ago when humans first tapped the river. Since then, the water has been claimed, reclaimed, divided and subdivided many times. The river is the life source for seven states – Arizona, California, Colorado, Nevada, New Mexico, Utah and Wyoming – as well as the Republic of Mexico. River Water Uses There are many demands for Colorado River water: • Agriculture and Livestock • Municipal and Industrial • Recreation • Fish/Wildlife and Habitat • Hydroelectricity • Tribes • Mexico Source: USGS Agriculture The Colorado River provides irrigation water to about 3.5 million acres of farmland – about 80 percent of its flows. Municipal Phoenix Denver About 15 percent of Colorado River flows provide drinking and household water to more than 30 million people. These cities include: Las Vegas and Phoenix, and cities outside the Basin – Denver, Albuquerque, Salt Lake City, Los Angeles, San Diego and Tijuana, Mexico. Recreation Source: Utah Office of Tourism Source: Emma Williams Recreation includes fishing, boating, waterskiing, camping and whitewater rafting in 22 National Wildlife Refuges, National Parks and National Recreation Areas along river.
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Morrow Point and Crystal Reservoirs Backcountry/Boat-In Campsites
National Recreation Area National Park Service Curecanti National Recreation Area MORROW POINT AND CRYSTAL RESERVOIRS National Park Service U.S. Department of the Interior BACKCOUNTRY/BOAT-IN CAMPSITES U.S. Department of the Interior BLACK CANYON OF THE GUNNISON NATIONAL PARK Access to Morrow Point Reservoir: Pine Creek Trail (requires hiking down 232 steps) C B o e a a l S v te e v r C e Access to Crystal Reservoir: Mesa Creek Trail at Cimarron n re s S e te C k k u r e b e e C e e r A n k ON ALL RESERVOIRS: r To C S e E e Gunnison k Use a campstove or burn driftwood only. Even dead trees are used by eagles, hawks and other M D l a r Neversink t y s Trail y birds of prey as hunting and nesting roosts. C r C k Neversink C r r N e e e e e O r e Crystal C k L k 92 Dam 92 L Ground fires are only allowed below the high water line on each reservoir. If a fire grate is I TENDERFOOT D k d provided, please use it. e d e a HILL Cooper Ranch re R o M C Lake City R Crystal Creek R k Bridge S A k e o Pack out all trash. e u e r t e Windsurfing K Beaver Creek h C r Stevens Creek E Red C B C Area R E Old e p R Creek w a k a Y o v e C K l Stevens l o e e L (reservations needed i S r r k S East Elk Creek Willow C E for group camping) W T i e P t Group Camping e C n A Creek A k r T DIL e a L Dry Gulch (reservations needed) r S O e e c C O N e L r e PIN E N C r S A k u C IOLA BASIN R a W L C s E E e M Dillon S l RESERVOIR a r Pinnacles Dillon Pinnacles E r 50 R o BLUE Trail C MESA V SAPINERO BASIN O CEBOLLA BASIN Dry Creek Iola IR Curecanti Creek Hermit’s
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Report Created: 8/13/2021 8:13:59 AM Basinwide Summary: August 1
Report Created: 9/15/2021 11:29:26 AM Basinwide Summary: September 1, 2021 Reservoir Storage Summary for the end of August 2021 (averages based on 1981-2010 reference period) Current Last Year Average Capacity Current % Last Year % Average % Current % Last Year % ARIZONA (KAF) (KAF) (KAF) (KAF) Capacity Capacity Capacity Average Average Lyman Reservoir 5.5 9.6 10.1 30.0 18% 32% 34% 55% 95% Salt River Reservoir System 1179.2 1188.0 2025.8 58% 59% 99% San Carlos Reservoir 27.4 58.1 261.4 875.0 3% 7% 30% 10% 22% Verde River Reservoir System 167.0 147.8 287.4 58% 51% 113% Basin-wide Total 32.9 67.7 271.5 905.0 4% 7% 30% 12% 25% # of reservoirs 2 2 2 2 2 2 2 2 2 Current Last Year Average Capacity Current % Last Year % Average % Current % Last Year % COLORADO (KAF) (KAF) (KAF) (KAF) Capacity Capacity Capacity Average Average Adobe Creek Reservoir 11.9 11.2 27.2 62.0 19% 18% 44% 44% 41% Antero Reservoir 20.1 19.6 15.5 19.9 101% 98% 78% 130% 126% Barr Lake 10.7 4.5 12.2 30.1 36% 15% 41% 88% 37% Beaver Reservoir 3.4 3.6 3.7 4.5 75% 81% 82% 91% 98% Black Hollow Reservoir 2.9 3.5 2.8 6.5 45% 54% 43% 104% 125% Blue Mesa Reservoir 310.4 495.3 670.8 830.0 37% 60% 81% 46% 74% Boyd Lake 35.7 32.4 26.0 48.4 74% 67% 54% 137% 125% Cache La Poudre 3.7 2.6 3.3 10.1 37% 26% 33% 112% 79% Carter Lake 92.2 91.5 60.7 108.9 85% 84% 56% 152% 151% Chambers Lake 4.5 6.4 2.7 8.8 51% 73% 31% 167% 237% Cheesman Lake 77.8 65.4 71.6 79.0 98% 83% 91% 109% 91% Clear Creek Reservoir 5.9 4.6 6.5 11.4 52% 41% 57% 91% 71% Cobb Lake 19.1 16.1 11.2 22.3 86% 72% 50% 171% 144% Continental
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Fishing 2 Ccr 406-1
DEPARTMENT OF NATURAL RESOURCES Division of Wildlife CHAPTER 1 - FISHING 2 CCR 406-1 [Editor’s Notes follow the text of the rules at the end of this CCR Document.] ARTICLE 1 - GENERAL PROVISIONS #100 – DEFINITIONS See also 33-1-102, C.R.S and Chapter 0 of these regulations for other applicable definitions. A. "Artificial flies and lures" means devices made entirely of, or a combination of, natural or synthetic non-edible, non-scented (regardless if the scent is added in the manufacturing process or applied afterward), materials such as wood, plastic, silicone, rubber, epoxy, glass, hair, metal, feathers, or fiber, designed to attract fish. This definition does not include anything defined as bait in #100.B below. B. “Bait” means any hand-moldable material designed to attract fish by the sense of taste or smell; those devices to which scents or smell attractants have been added or externally applied (regardless if the scent is added in the manufacturing process or applied afterward); scented manufactured fish eggs and traditional organic baits, including but not limited to worms, grubs, crickets, leeches, dough baits or stink baits, insects, crayfish, human food, fish, fish parts or fish eggs. C. "Chumming" means placing fish, parts of fish, or other material upon which fish might feed in the waters of this state for the purpose of attracting fish to a particular area in order that they might be taken, but such term shall not include fishing with baited hooks or live traps. D. “Game fish” means all species of fish except prohibited nongame, endangered and threatened species, which currently exist or may be introduced into the state and which are classified as game fish by the Commission.
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Reservoir Expected Operations the Operation of Lake Powell and Lake
To: All Annual Operating Plan Recipients From: Michael Bernardo, P.E. From: Paul Davidson River Operations Manager Chief, Water Management Group Boulder Canyon Operations Office Water and Power Division, Power Office Interior Region 8: Lower Colorado Basin Interior Region 7: Upper Colorado Basin P.O. Box 61470 125 South State Street, Room 8100 Boulder City, NV 89006-1470 Salt Lake City, UT 84138-5571 Phone: (702) 293-8111 Phone: (801) 524-3642 The operation of Lake Powell and Lake Mead in this September 2021 24-Month Study is pursuant to the December 2007 Record of Decision on Colorado River Interim Guidelines for Lower Basin Shortages and the Coordinated Operations of Lake Powell and Lake Mead (Interim Guidelines), and reflects the 2021 Annual Operating Plan (AOP). Pursuant to the Interim Guidelines, the August 2020 24-Month Study projections of the January 1, 2021, system storage and reservoir water surface elevations set the operational tier for the coordinated operation of Lake Powell and Lake Mead during 2021. The August 2020 24-Month Study projected the January 1, 2021, Lake Powell elevation to be below the 2021 Equalization Elevation of 3,659 feet and above elevation 3,575 feet. Consistent with Section 6.B of the Interim Guidelines, Lake Powell is operating under the Upper Elevation Balancing Tier for water year 2021. With an 8.23 million acre-foot (maf) release from Lake Powell in water year 2021, the April 2021 24-Month Study projected the end of water year elevation at Lake Powell to be below 3,575 feet. Therefore, in accordance with Section 6.B.1 of the Interim Guidelines, Lake Powell will continue to release 8.23 maf through the remainder of the water year 2021.
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Gunnison River Below Crystal Dam
Gunnison River Below Crystal Dam FISH SURVEY AND MANAGEMENT INFORMATION Eric Gardunio, Fish Biologist Montrose Service Center General Information: The Gunnison River in the Black Canyon and Gunnison Gorge is a Gold Med- al wild trout fishery that stretches over 40 miles from Crystal Reservoir to the town of Austin and provides many diverse wading and float fishing opportunities Location: There are many access points in Montrose and Delta counties predominantly in the Black Canyon of the Gunnison National Park and the Gunnison Gorge National Conservation Area. For access information and regulations see: http://www.nps.gov/blca/index.htm http://www.blm.gov/co/st/en/nca/ggnca.html Primary Management: Gold Medal quality coldwater fishing for wild brown and rainbow trout Amenities Regulations Sportfishing Notes Popular foot trails in- Rainbow Trout clude Warner Point, Red From Crystal Res Dam down- Highest number of rain- Rocks, Chukar, Bobcat, stream 200 yards: bows occur in the East Duncan, Ute, and West Portal area and upstream River Trail -Fishing prohibited as of the North Fork posted. Drive-to camping availa- Good flies include midg- ble in the National Park From 200 yards downstream of es, pheasant tails, scuds, in East Portal and on the Crystal Res dam to Relief Ditch elk hair caddis, salmon- BLM along the South diversion (5 miles above Austin flies, hoppers, and black River Road Bridge): wooly buggers Wilderness hiking camps -Artificial flies and lures Important hatches include and boating camps avail- only. BWO’s, grannom caddis able in BLM wilderness -Rainbows must be returned (April/May), salmonflies area, see BLM web page to water immediately.
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Wayne Aspinall Unit Colorado River Storage Project
Wayne Aspinall Unit Colorado River Storage Project Zachary Redmond Bureau of Reclamation History Program 2000 Table Of Contents Table Of Contents .............................................................1 The Wayne Aspinall Unit .......................................................2 Project Location.........................................................2 Historic Setting .........................................................4 Prehistoric Setting .................................................4 Historic Setting ...................................................6 Project Authorization....................................................15 Construction History ....................................................20 Blue Mesa Dam..................................................20 Morrow Point Dam ...............................................33 Crystal Dam.....................................................43 Post-Construction History................................................53 Settlement of the Project .................................................61 Uses of Project Water ...................................................62 Conclusion............................................................64 About the Author .............................................................64 Bibliography ................................................................66 Archival Collections ....................................................66 Government Documents .................................................66 Articles...............................................................67
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Figure 4.42 Operating Range and Outage Factor at Glen Canyon Dam During the Study Period
ANL/DIS-10-6 Ex Post Power Economic Analysis of Record of Decision Operational Restrictions at Glen Canyon Dam Decision and Information Sciences Division About Argonne National Laboratory Argonne is a U.S. Department of Energy laboratory managed by UChicago Argonne, LLC under contract DE-AC02-06CH11357. The Laboratory's main facility is outside Chicago, at 9700 South Cass Avenue, Argonne, Illinois 60439. For information about Argonne and its pioneering science and technology programs, see www.anl.gov. Availability of This Report This report is available, at no cost, at http://www.osti.gov/bridge. It is also available on paper to the U.S. Department of Energy and its contractors, for a processing fee, from: U.S. Department of Energy Office of Scientific and Technical Information P.O. Box 62 Oak Ridge, TN 37831-0062 phone (865) 576-8401 fax (865) 576-5728 [email protected] Disclaimer This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor UChicago Argonne, LLC, nor any of their employees or officers, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof.
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FINAL ENVIRONMENTAL ASSESSMENT Morrow Point
FINAL ENVIRONMENTAL ASSESSMENT Morrow Point Cimarron Dredging Project Prepared by Bureau of Reclamation Western Colorado Area Office Grand Junction, Colorado September 2001 TABLE OF CONTENTS CHAPTER I - Introduction ......................................................1 Proposed Action .........................................................1 Purpose and Need .......................................................1 Background Information ..................................................2 Public Scoping..........................................................4 CHAPTER II - ALTERNATIVES AND THE PREFERRED ALTERNATIVE .............6 No Action Alternative....................................................6 Proposed Action .........................................................6 Environmental Commitments ..............................................6 CHAPTER III - AFFECTED ENVIRONMENT/ENVIRONMENTAL CONSEQUENCES ...8 General................................................................8 Aspinall Unit and Morrow Point Reservoir....................................8 Recreation Resources....................................................10 Land Use and Vegetation.................................................11 Fish and Wildlife Resources ..............................................11 Threatened and Endangered Species........................................14 Water Quality ..........................................................14 Water Rights ..........................................................16 Historical and Cultural Resource
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Evaluation of Data from Two Gunnison River Temperature Monitoring Stations Discontinued in 2018 by the Program Director’S Office
Evaluation of Data from Two Gunnison River Temperature Monitoring Stations Discontinued in 2018 by the Program Director’s Office Jana Mohrman and Don Anderson Upper Colorado River Recovery Program January 2020 Purpose of Report The Upper Colorado River Endangered Fish Recovery Program (Recovery Program) has been monitoring river water temperatures at multiple sites in the Gunnison River basin since as early as 1992 (Figure 1 and Table 1) for multiple purposes, including evaluating the influence of the Bureau of Reclamation’s Aspinall Unit on downstream river temperatures and the commensurate effect on fish habitat conditions. This report documents the rationale for discontinuing, in 2018, two sites originally established in 1996, and provides some analysis of the information those sites provided. Gunnison River Temperature Monitoring The Bureau of Reclamation’s Aspinall Unit consists of a series of reservoirs on the mainstem Gunnison River including Blue Mesa Reservoir (established in 1966; storage capacity 940,800 acre- feet) and two smaller reregulating reservoirs downstream, Morrow Point (1968) and Crystal (1977). Temperatures in the lower Gunnison River are influenced to some degree by the temperature of water passing through the Aspinall Unit. The Recovery Program has annually monitored 12 sites in the Gunnison River basin below the Aspinall Unit; those sites have been monitored between 13 and 23 years. Some temperature monitoring sites have been maintained by the Recovery Program Director’s Office (PDO) based in Lakewood, Colorado; others are maintained by the U.S. Fish and Wildlife Service’s (FWS) Grand Junction Fish and Wildlife Conservation Office based in Grand Junction, Colorado. Several of these sites became redundant to temperature monitoring sites installed nearby in 2009 by the U.S.
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Colorado River Water Supply Report
73% 83% Colorado River Water Supply Report 43% 66% System Contents: 21.84 MAF Lake Powell 3,700’ Crystal Reservoir As of July 26, 2021 33%, 7.91 MAF 95% Mid-Elevation Reservoir Capacities (MAF) Release 3,575’ Reservoir Current Change* Maximum Lake Mead 1,220’ Current Elevation 63% Lake Mead 9.03 -0.13 25.90 35%, 9.02 MAF 3,554’ Lake Powell 7.91 - 0.45 24.30 Tier 1 Shortage 1,075’ Flaming Gorge Reservoir 3.10 - 0.01 3.75 Current Elevation 1,068’ Fontenelle Reservoir 0.25 0.00 0.34 Navajo Reservoir 1.07 - 0.05 1.70 Blue Mesa Reservoir 0.35 - 0.04 0.83 Morrow Point Reservoir 0.11 0.00 0.12 Crystal Reservoir 0.02 0.00 0.03 * With respect to previous month’s report Powell Unregulated Inflow 2021 • WY 2021 projected to be 2nd lowest inflow • 3.25 MAF – WY 2021 • April – July inflow forecast projected to be 25% of 30-year average • July inflow projected to be 104 kaf, 10% of the 30-year average • WY 2021 projected to be 30% of 30-year average 2 | Powell End of Month Elevations • July 2021 24-Month Study • In WY 2021, release is 8.23 MAF for min, most, and max probable scenarios • In WY 2022, release is 7.48 MAF for min, most, and max probable scenarios 3 | Mead End of Month Elevations • July 2021 24-Month Study 4 | Probability of System Conditions - June 2021 (Observed, Stress Test) 2021 2022 2023 2024 2025 Lake Powell Release > 8.23 MAF 0 0 0 0 28 16 47 33 55 37 Equalization > 8.23 MAF 0 0 0 0 3 0 9 <1 14 4 Upper Elevation > 8.23 MAF 0 0 0 0 25 16 38 33 41 33 Lake Powell Release = 8.23 MAF 100 100 0 0 0 0 1 0 8 8 Equalization = 8.23 MAF 0 0
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