Title |
Updating the Hoover Dam documents, 1978 / Milton N. Nathanson. |
Creator |
Nathanson, Milton N. |
Subject |
Water resources development -- Law and legislation; rivers |
Spatial Coverage |
Colorado River (Colo.-Mexico) |
OCR Text |
Show Updating the Hoover Dam documents, 1978 / Milton N. Nathanson. |
Publisher |
[Denver, Colo.?] : U.S. Dept. of the Interior, Bureau of Reclamation : [For sale by] the Bureau of Reclamation, Engineering and Research Center ; Washington, D.C. : For sale by the Supt. of Docs., U.S. G.P.O., 1980. |
Contributors |
United States.; Bureau of Reclamation. |
Date |
1978 |
Type |
Text |
Format |
application/pdf |
Digitization Specifications |
Pages were scanned at 400 ppi on Fujitsu fi-5650C sheetfed scanner as 8-bit grayscale or 24-bit RGB uncompressed TIFF images. For ContentDM access the images were resampled to 750 pixels wide and 120 dpi and saved as JPEG (level 8) in PhotoShop CS with Unsharp Mask of 100/.3. Foldout pages larger than 11" x 14" were captured using a BetterLight Super 8K-2 digital camera back on a 4x5 view camera (100mm Schneider APO lens). Oversize images were resampled to 1500 pixels wide. Optical Character Recognition (OCR) by ABBYY FineReader 7.0 with manual review. |
Language |
eng |
Rights Management |
Digital Image Copyright 2005, University of Utah. All Rights Reserved. |
Contributing Institution |
Documents Division (ML), Gov Docs, U.S. Lvl , J. Willard Marriott Library, University of Utah, 295 S 1500 E, Salt Lake City, UT 84112-0860 |
Source Physical Dimensions |
xii, 342 p. : ill. (part col.), col maps (1 fold. inserted) ; 27 cm. |
Scanning Technician |
Backstage Library Works - 1180 S. 800 E. Orem, UT 84097. |
Call Number |
I27.2: H76/ 7/978 |
ARK |
ark:/87278/s690233n |
Setname |
wwdl_documents |
ID |
1137085 |
Reference URL |
https://collections.lib.utah.edu/ark:/87278/s690233n |
Title |
page XII-33 |
OCR Text |
Show APPENDIX XII Results of model runs-Colorado River XII-33 Shortage conditions Estimated (1) (2) (3) (4) End of month 30-year aver- contents age annual Year total basin December 2000 virgin water California con- water demands Arizona consump- Alternative supply at Year sumptive use cut exceed long-term tive use reduced Year upper basin Lake Lake demands and Lees-Ferry CAP back to 4.4 average virgin to less than 2.8 demands equal to Powell Mead hydrologic (million acre- on million acre-feet flow of 14.9 million acre-feet 5.8 million acre- (million (million traces feet) line per year million acre feet per year feet acre-feet acre-feet) ALT-1 1987 A 13.2 1994 - - - 17.2 20.1 B 14.1 1988 - 1999 - 16.3 20.1 C 15.5 - 1987 - - 25.7 26.4 ALT-2 1987 A 13.2 1989 1987 - - 15.8 18.7 B 14.1 1987 1988 1999 - 16.4 18.2 C 15.5 - 1987 - - 25.6 26.5 ALT-3 1975 A 13.2 1985 1987 2000 1993 12.9 16.0 B 14.1 1985 1988 1995 1995 14.0 14.7 C 15.5 __i 1985 - 1989 24.1 25.6 Mn 1998 California was cut back to 4.4 million acre-feet, however, deliveries were greater than 4.4 million acre-feet the following two years. The results of the model runs support the following observations: 1. Total basin water demands in all likelihood will exceed the long-term virgin flow of the Colorado River in the 1985-1988 time frame, coincidental with study projection dates for completion of the Central Arizona project. 2. Upper Basin water demands under the high-level growth projection could equal or exceed 5.8 million acre-feet in the 1990-1995 time period. However, in most cases, because of favorable runoff or storage conditions, the projected demands were met until after the year 2000. 3. Except under a runoff cycle higher than the long-term average, California's current water use will be cut back to 4.4 million acre-feet some time between 1985 and 1995, depending upon basin water demand growth and hydrologic conditions. 4. Except upon a runoff cycle higher than the long-term average, Arizona's consumptive use could be reduced below 2.8 million acre-feet some time within the 1995-2000 time period, depending upon basin water demand growth and hydro-logic conditions. 5. Should the virgin runoff at Lee Ferry for the next 25 years average 15.5 million acre feet, all reasonably foreseeable basin water demands could be met through 2000, and both Lake Powell and Lake Mead would be full at that time. 6. Under any future runoff cycle other than an extremely adverse one, it is reasonably certain that the main Colorado River storage reservoirs will be 43 |
Format |
application/pdf |
Resource Identifier |
310729-UUM-UHD-v31a12_page XII-33.jpg |
Source |
Original book: Updating the Hoover Dam documents, 1978 / Milton N. Nathanson. |
Setname |
wwdl_documents |
ID |
1136999 |
Reference URL |
https://collections.lib.utah.edu/ark:/87278/s690233n/1136999 |