Hanks, K.S. and Wallace, D.E. and Schreiber, H.A.
(1981)
Bacteriological ground water quality characteristics of the walnut gulch experimental watershed.
Technical Report.
Science and Education Administration Agricultural Research., Tucson. Ariz.
Abstract
Transmission losses from ephemeral channels are a major
ground water recharge mechanism in southwestern rangelands.
Wells located near large ephemeral streams in south
eastern Arizona were sampled to determine the influence of
recharging storm runoff on ground water quality. The wells
reacted in a cyclic pattern with fecal coliform-fecal strep
tococci ratios ranging from extremely low values prior to
storm runoff (0.003) to high values (6.60) immediately after
runoff events. The wells then quickly returned to the original low bacteria counts. This indicates a highly porous subsur face material which allows pollutants to travel long distances in extremely short time intervals. Thus, a potential exists for polluting vast quantities of ground water in alluvium filled basins in the Southwest
| Item Type: |
Monograph
(Technical Report)
|
| Uncontrolled Keywords: |
Ground water, ephemeral recharge, rangeland and
urban pollution, fecal coliform-fecal streptococci, bacteria
movement, pollution potential, nonpoint pollution |
| Author Affiliation: |
Water Quality Analyst, Arizona Game Anil Fish Department, 2222 West Greenway Road, Phoenix, Ariz, USA |
| Subjects: |
Statistics and Experimentation > Experimentation |
| Divisions: |
Other Crops |
| Depositing User: |
Ms K Syamalamba
|
| Date Deposited: |
25 Oct 2012 03:56 |
| Last Modified: |
25 Oct 2012 04:00 |
| URI: |
http://eprints.icrisat.ac.in/id/eprint/8514 |
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