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Summary of revised potentiometric-surface map for Yucca Mountain and vicinity, Nevada

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Abstract

The revised map for the potentiometric surface of the uppermost saturated zone in Tertiary volcanic rocks at Yucca Mountain, Nevada, is based mainly on 1988 water levels. Refinement of the water-level corrections has increased understanding of the area immediately east-southeast and hydrologically downgradient of Yucca Mountain. This small-gradient area is a nearly horizontal surface which corresponds to the likely direction of ground-water flow from Yucca Mountain - east-southeast. To the west of Yucca Mountain, water levels are approximately 45 m higher than those in the small-gradient area, and to the east of the northern part of Yucca Mountain water levels are approximately 300 m higher than those in the small-gradient area. Water levels are higher to the west of Yucca Mountain apparently because of a barrier to ground-water flow formed by the Solitario Canyon fault and a splay of the fault, and water levels are higher to the north apparently because of a semi-perched ground-water system.

Additional Publication Details

Publication type:
Conference Paper
Publication Subtype:
Conference Paper
Title:
Summary of revised potentiometric-surface map for Yucca Mountain and vicinity, Nevada
ISBN:
0872629503
Year Published:
1993
Language:
English
Publisher:
Publ by ASCE
Publisher location:
New York, NY, United States
Larger Work Title:
High Level Radioactive Waste Management
First page:
1554
Last page:
1558
Conference Title:
Proceedings of the 4th Annual International Conference on High Level Radioactive Waste Management
Conference Location:
Las Vegas, NV, USA
Conference Date:
26 April 1993 through 30 April 1993