Maximum discharge along the river is currently at the reporting a streamflow rate of cfs. This is also the highest stage along the Ompompanoosuc River, with a gauge stage of ft at this location. This river is monitored from 1 different streamgauging stations along the Ompompanoosuc River, the highest being situated at an altitude of ft, the .

The Ompompanoosuc River is a 16.8-mile-long tributary of the Connecticut River, located in Vermont, USA. The river was named by the Abenaki people and has a rich history of providing water power to mills and factories in the area during the 18th and 19th centuries. Today, the river is primarily used for recreational purposes, including fishing, kayaking, and hiking. The hydrology of the river is affected by several dams and reservoirs, including the Post Mills Dam and Reservoir, which was built in 1927 to generate electricity. The river also provides irrigation for agricultural activities in the area. The Ompompanoosuc River is valued for its scenic beauty and is home to a diverse range of wildlife, including trout, beaver, and otter.