West Brook flows into the West Branch Delaware River by Walton, New York.

The United States Geological Survey (USGS) maintains one stream gauge along West Brook, located in Austin Lincoln Park, one mile (1.6 km) upstream from the mouth.

The station in operation since 2017, had a maximum discharge of 804 cubic feet (22.8 m3) per second on August 14, 2018, and a minimum discharge of 3.2 cubic feet (0.091 m3) per second on July 21–22, 2018.

[3]