Nutrient samples were collected from seven local river stations and one bay station on December 28th; additional bay sampling was cancelled due to freezing temperatures. The lone bay station (Phillipsdale Landing) was sampled at the surface and bottom. Leading up to sampling, there were 1.17 inches total precipitation recorded at T.F. Green on the 23rd and no precipitation on the 24th – 27th.
Among the river stations sampled, the highest total nitrogen (TN), total dissolved nitrogen (TDN), and dissolved inorganic nitrogen (DIN) concentrations were observed at Pawtuxet River @ Broad St. (TN = 1,580 ppb, TDN = 1,710 ppb, DIN = 1,350 ppb). The lowest TN was observed at Woonasquatucket River @ Valley St. (TN = 651 ppb); the lowest TDN and DIN were observed Woonasquatucket River @ Manton Ave. Bridge (TDN = 680 ppb, DIN = 463 ppb).
At the one bay station sampled, Phillipsdale Landing, surface TN was 1,130 ppb, surface TDN was 1,160 ppb, and surface DIN was 899 ppb.
Data from additional sampling dates (typically every two weeks) are pending analysis and writeup.