Figure 11. Groups of wells near the Oregon Water Resources Department administrative areas in the Umatilla Basin, Oregon. (A) North–South group (circles and squares); and (B) East–West group (triangles and squares). Hydrographs depict the winter median water level for individual wells within each well group and LOESS curve representing the overall water-level trend of all wells in the group. Locations of wells are shown in figure 10.

First posted February 5, 2013