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 May 19, 2026. Trace amounts of rain were recorded at T.F. Green International Airport (Warwick, RI) in the four days leading up to and including the survey day. The water column was strongly stratified at Pomham Rocks, moderately stratified at Edgewood Yacht Club, India Point Park, and Phillipsdale Landing, and weakly stratified at Point St. Bridge, Conimicut Point, and Bullock’s Reach.
Dissolved oxygen conditions were not below the hypoxia threshold (2.9 mg/L) at any of the visited locations. The highest fluorescence reading was observed about 2.25 meters below the surface at Edgewood Yacht Club.