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Legend (NPDAT/SDWIS)

Surface Water Sources by HUC12 (0)
0 0
1 1
2 2
3 - 10 3 - 10
11 - 50 11 - 50
Groundwater Sources by HUC12 (1)
0 0
1 - 20 1 - 20
21 - 50 21 - 50
51 - 100 51 - 100
101 - 500 101 - 500