Potential groundwater sampling sites for installation of a well network for long-term monitoring of agricultural chemicals in the High Plains Aquifer, Colorado

These data are in support of report DS 456 (Arnold and others, 2009). This
dataset includes 90 potential groundwater sampling sites randomly generated
using techniques described in Scott (1990), composed of 30 locations with a
first, second, and third choice of sampling location. Sites are in 30 equal area
polygons that divide areas in the High Plains Aquifer in Colorado with a depth
to water less than 180 feet, a saturated thickness greater than 50 feet, and
underlying irrigated agricultural lands. Input saturated-thickness and
depth-to-water data from V.L. McGuire, written communication, 2008.
Irrigated agricultural lands from Bauder and others (2004).