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Scientific Investigations Report 2008–5025

U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2008–5025

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Figure - refer to figure caption for alternative text descriptionFigure - refer to figure caption for alternative text description

Figure 11. Depth to which wells need to be drilled for at least a 90-percent probability of detecting a nitrate concentration less than 2 milligrams per liter in ground water for the logistic regression model without hydrogeomorphic regions, State of Washington and Puget lowlands.

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