Effects of Agriculture and Urbanization on Quality of Shallow Ground Water in the Arid to Semiarid Western United States, 1993

Scientific Investigations Report 2007–5179

U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2007–5179

Figure - refer to figure caption for alternative text description

Figure 21. Simazine pesticide use by (A) county and (B) township-and-range-scale coverages, and (C) graphical comparison of pesticide-use scales in the San Joaquin-Tulare Basins (SANJ) study unit.

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