The tables below show nutrient levels in four eastern Massachusetts Rivers. These tables show that phosphorus and nitrogen levels are much higher in the upper Taunton River and Matfield Rivers than in the Charles and Neponset Rivers. Bear in mind that the upper Taunton River is not an urban river like much of the Charles and Neponset Rivers.
All figures are milligrams per Liter. The EPA standard for Maximum Nitrogen is 0.3 mg/l. The EPA standard for Maximum Phosphorus is 0.02 mg/l.
Taunton River samples are from sample site at Green St. Middleboro year 2002 and 2003. Sampling done by Taunton River Watershed Alliance.
Neponset River samples are from sample sites throughout the Neponset watershed. Sampling done July 2002 by the Neponset River Watershed Association.
Charles River samples were taken at New Charles River Dam site Boston 1998 to 2002 by the Charles River Watershed Association.
Matfield River sample are from the ESS Groups NPS study 2002. Samples taken at three different sites along the Matfield.
Phosphorus comparisons using the sampling data above
Nitrogen comparisons using the sampling data above
Visit these sights for more detailed water quality info.
Neponset River Watershed Association. HERE
Charles River Watershed Association. HERE
Back to Nutrients Page..... HERE