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

The Nashua River is a 56-mile-long tributary of the Merrimack River in Massachusetts and New Hampshire. The river has a rich history, as it was once used for transportation of goods and powered many mills during the industrial revolution. Today, the river is a popular destination for recreational activities such as hiking, fishing, and canoeing. The hydrology of the river has been impacted by several dams and reservoirs, including the Wachusett Reservoir, which supplies drinking water to the Greater Boston area. Additionally, the river is also used for agricultural purposes such as irrigation and livestock watering. Despite pollution issues in the past, conservation efforts have led to improved water quality and the return of wildlife, including bald eagles, beavers, and river otters.