Water column profiles were conducted using a Seabird Electronics profiler at six locations in the Providence River and one location in the Seekonk River on June 17, 2026. In the four days leading up to and including the survey day, there were 0.01 inches of rain recorded at T.F. Green International Airport (Warwick, RI). The water column was moderately stratified at India Point Park, weakly stratified at Pomham Rocks, Point St. Bridge, Conimicut Point, Edgewood Yacht Club, and Bullock’s Reach, and well-mixed at Phillipsdale Landing.
Dissolved oxygen conditions were slightly below the hypoxia threshold (2.9 mg/L) in the lower part of the water column at Edgewood Yacht Club and India Point Park. The highest fluorescence reading was observed about 2.00 meters below the surface at India Point Park.