Reconnaissance investigation of water quality, bottom sediment, and biota associated with irrigation drainage in the San Juan River area, San Juan County, northwestern New Mexico, 1990-91

Blanchard, P. J.; Roy, R. R.; O'Brien, T. F.

Abstract:

Selenium concentrations larger than established standards and criteria were present in Gallegos Canyon and Ojo Amarillo Canyon drainages on the Navajo Indian Irrigation Project, a pond on the West Hammond Irrigation Project, and a drain on the Hogback Irrigation Project, New Mexico. Ground-water return flow from irrigated areas contributes substantially to surface water at these sites. Selenium concentrations in 11 surface-water samples from these four areas exceeded the State of New Mexico standard of 5 micrograms per liter for the protection of fisheries. Selenium concentrations in five bottom-sediment samples from three of these areas ranged from 4.5 to 38 micrograms per gram; the geometric mean concentration of selenium in Western United States soils is 0.23 microgram per gram.

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USGS Numbered Series

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26224

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Blanchard, P. J.; Roy, R. R.; O'Brien, T. F.

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ENGLISH

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vii, 141 p. :ill., maps ;28 cm.

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U.S. Geological Survey, Water Resources Division ; U.S. Geological Survey, Books and Open-File Reports [distributor],

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Water-Resources Investigations Report

Citation Series Code:

WRI

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93-4065

Citation Search Results Text:

Reconnaissance investigation of water quality, bottom sediment, and biota associated with irrigation drainage in the San Juan River area, San Juan County, northwestern New Mexico, 1990-91; 1993; WRI; 93-4065; Blanchard, P. J.; Roy, R. R.; O‘Brien, T. F.