Estimated Ground-Water Withdrawals from the Death Valley Regional Flow System, Nevada
and California, 1913-98
By Michael T. Moreo, Keith J. Halford, Richard J. La Camera, and Randell J. Laczniak
Report availability: Portable Document Format (PDF).
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CONTENTS
- Abstract
- Introduction
- Purpose and Scope
- Acknowledgements
- Description of Study Area
- Hydrographic Areas
- Public Land Survey System
- Water-Use Groupings and General Characteristics
- Methods for Determining Well Location and Open-Interval Depth
- Well Location
- Global Positioning System and Topographic Maps
- NDWR Well-Log Database
- NDWR Pumpage Inventories
- Previous Ground-Water Model
- Depths of Withdrawals
- Estimates of Annual Ground-Water Withdrawals
- Mining, Public Supply, and Commercial
- Domestic
- Irrigation
- Irrigated Acreage
- Application Rates
- Ground-Water Development from 1913 through 1998
- Uncertainty of Ground-Water Withdrawal Estimates
- Summary
- References Cited
- Appendix
FIGURES
- Map showing extent of Death Valley regional flow system and
hydrographic areas
- Grid showing Public Land Survey System in Nevada and California
3-6. Graphs showing:
- Distribution of bottom of open-interval depth by water-use class
- Total withdrawal from the Death Valley regional flow system by water-use class
- Comparison between reported and estimated annual ground-water
withdrawals at Nevada Test Site, 1962-71 and 1983-98
- Number of domestic wells drilled, Death Valley regional flow system, 1960-98
- Map showing hydrographic areas with more than 200 irrigated acres and extents of
irrigated fields, 1998
- Graph showing years when pumpage inventories were conducted in Pahrump Valley,
Penoyer Valley, Pahranagat Valley, and Amargosa Desert
- Images showing sources used to delineate irrigated fields and identify years
of active irrigation
- Graph showing differences between acreage estimates from pumpage inventories and
remote sensing in Penoyer Valley
- Schematic showing active fields identified by remote sensing and pumpage inventories, Penoyer Valley, 1991
12-14. Maps showing locations of ground-water withdrawal sites in the Death Valley regional flow system:
- Graph showing range of estimated ground-water withdrawals and assigned uncertainty, Death Valley
regional flow system, 1913-98
- Graphs showing example of extrapolated and interpolated annual withdrawal for a
single withdrawal point in Amargosa Desert, 1958-98
TABLES
- Numbers and names of hydrographic areas in the study area
- Range of application rates for alfalfa by hydrographic area
- Range of application rates by crop type group and hydrographic area
- Description of Microsoft® Access database
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