Factors Affecting the Occurrence and Distribution of Pesticides in the Yakima River Basin, Washington, 2000

Scientific Investigations Report 2007–5180

U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2007–5180

Figure - refer to figure caption for alternative text description

Figure 12. Relation between percentage of sprinkler or drip irrigation used in catchment and suspended-sediment concentrations, Yakima River Basin, Washington, 2000. Suspended-sediment concentrations tend to decrease with increasing use of sprinkler or drip irrigation at most sites in the Mid Valley and Lower Valley. Suspended-sediment concentrations are lower at Kittitas Valley sites considering the low use of sprinkler or drip irrigation.

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