Estimating the Probability of Elevated Nitrate Concentrations in Ground Water in Washington State

Scientific Investigations Report 2008–5025

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

Figure - refer to figure caption for alternative text description

Figure 6. McFadden’s rho squared from relations of amount of nitrogen application and percentage of agricultural, urban, and undeveloped lands within circular buffers around wells with nitrate concentrations greater than 2 milligrams per liter in ground water in Washington.

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