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Simulated water-level declines near Marienthal, west-central Kansas

Water-Resources Investigations Report 80-39

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Abstract

Intensive study in an area of 12-square miles in northeastern Wichita County, Kansas, has shown a decrease of 30 to 50% in saturated thickness of the Ogallala Formation since the development of irrigation. Projections from a digital model indicated the additional water-level declines that might occur from 1978 to 1989 if the pumpage in the model area was assumed to be one-half, equal to, or double the 1977 rate. The additional declines would range from 5 to 15 feet, 15 to 30 feet , and 25 to 40 feet, respectively. If pumpage only in the intensive-study area were assumed to be one-half or double the 1977 rate, water-level declines would range from 10 to 20 feet and from 20 to 25 feet, respectively. Reducing pumpage only in the intensive-study area could reduce the water-level declines locally. However, declines would be greatest near the edge of the area as a result of continued pumpage by wells outside the area. The digital model was more sensitive to changes in pumpage than to changes in hydraulic conductivity, specific yield, or recharge.

Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Simulated water-level declines near Marienthal, west-central Kansas
Series title:
Water-Resources Investigations Report
Series number:
80-39
Edition:
-
Year Published:
1980
Language:
ENGLISH
Publisher:
U.S. Geological Survey, Water Resources Division,
Description:
iv, 15 p. :ill., maps ;27 cm. [PGS: 42 p.]