Microbiological Quality of Surface Drainage Water from Three Small Irrigated Watersheds in Southern Idaho

Smith, J.H. and Douglas, C.L. (1973) Microbiological Quality of Surface Drainage Water from Three Small Irrigated Watersheds in Southern Idaho. Journal of Environment Quality. 2(1):110-112.

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Abstract

The irrigation waters applied to and the surface drainage waters
leaving three small watersheds in southern Idaho were analyzed for
coliforms and other microorganisms and for biochemical oxygen
demand (BOD). Numbers of coliforms and fecal coliforms tended
to be greater in the drainage than in the irrigation water, but the
differences were generally within the confidence limits for Most
Probable Numbers analyses. Fecal streptococci numbers were higher
in the drainage than in the irrigation water on two of the three
small watersheds. The numbers of fecal streptococci and microorganisms
incubated at 20C were higher in the drainage than the
irrigation water; otherwise, the bacteriological quality of the irrigation
water was not significantly changed by irrigation use. BOD in
the drainage water samples averaged 4 mg/liter oxygen demand
compared with 2 mg/liter oxygen demand in the irrigation water.

Item Type:	Article
NWISRL Publication Number:	0242
Subjects:	Irrigation > Furrow irrigation > Drainage water (see Percolation water) Mass Import - autoclassified (may be erroneous)
Depositing User:	Dan Stieneke
Date Deposited:	20 Nov 2010 21:51
Last Modified:	16 Feb 2017 23:10
Item ID:	230
URI:	https://eprints.nwisrl.ars.usda.gov/id/eprint/230