Water column profiles were conducted using a Seabird Electronics profiler at seven locations in the Providence River and one location in the Seekonk River on July 15, 2026. In the four days leading up to and including the survey day, there was no rain recorded at T.F. Green International Airport (Warwick, RI). The water column was moderately stratified at Phillipsdale Landing, Pomham Rocks, and India Point Park, and weakly stratified at Edgewood Yacht Club, Pawtuxet Cove, Bullock’s Reach, Conimicut Point, and Point Street Bridge.
Dissolved oxygen conditions were slightly below the hypoxia threshold (2.9 mg/L) throughout the water column at Point Street Bridge and in the lower part of the water column at Edgewood Yacht Club, Pomham Rocks, Phillipsdale Landing, and India Point Park. The highest fluorescence reading was observed about 0.75 meters below the surface at India Point Park.