FOUR TIMES A YEAR MWA River Watchers check the health of the stream by monitoring water quality at four locations on the Musconetcong River: at Willow Street in the Port Morris section of Roxbury Twp, in Hackettstown on Route 57, in the Point Mountain Preserve, and off of Mt. Joy Road in Finesville.
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The MWA River Watchers measure temperature, dissolved oxygen, acidity (pH), and nitrate levels at each site. Volunteers also assess water and habitat quality by collecting aquatic insects, mollusks, and crustaceans that inhabit the stream bottom. These tiny organisms, called benthic macroinvertebrates, form the bottom of the food chain in streams and are sensitive to changes in their environment. When streams are clean and have good habitat, there is a rich diversity of these organisms living there.
The MWA uses the River Watcher data to develop information that helps us: