Water column profiles were conducted using a Seabird Electronics profiler at three locations in the Providence River on August 13, 2025. In the five days leading up to this there were 0.00 inches of rain recorded at T.F. Green International Airport (Warwick, RI). Water column stratification was weak at all three locations— Conimicut Point, Bullock’s Reach and Edgewood Yacht Club.
Dissolved oxygen conditions were below the hypoxia threshold (2.9 mg/L) in the lower portion of the water column at Edgewood Yacht Club. This is also where the highest fluorescence reading was measured at about 1 meter below the surface.