Map 12 - ArcGIS layer showing contours of the difference in May Mean water levels from the water-year periods 1990 to 1999 and 2000 to 2009 (feet)
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资源简介：
This feature class contains the potentiometric contour lines for the difference in May average water levels from the water year periods 1990 to 1999 and 2000-2009.
创建时间：
2016-01-01
