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This code list is used in association with the Primacy attribute which is present within the Water Link Feature Type. The code list is a value indicating the relative importance of the water network link within any larger watercourse it is part of.
1
The link represents the main flow in the network.
2
The link represents secondary flow in the network. Also includes bodies of water that have no identifiable direction of flow, which can be identified with flowDirection='Unknown'.