Scientific Investigations Report 2009–5030
U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2009–5030
Figure 9. Estimated ground-water recharge dates in the DR2 catchment, Yakima River basin, Washington. (*Estimated recharge date for seven streambed samples—two from the downstream transect and five from the upstream transect; see figure 1 for location of section A–A’.)