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etdm_services
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NHDWBD_HUC (MapServer)
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Legend
API Reference
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Legend (etdm_services/NHDWBD_HUC)
6-digit HU (Basin) (0)
8-digit HU (Subbasin) (1)
10-digit HU (Watershed) (2)
12-digit HU (Subwatershed) (3)
