Water column profiles were conducted at seven locations in the Providence and Seekonk River estuaries on August 1, 2024 using a Seabird Electronics profiler. In the five days leading up to the survey, 1.34 inches of precipitation were recorded at T.F. Green. Water column stratification at the sites varied from well-mixed at Edgewood Yacht Club, to strongly stratified at Point Street Bridge.
Dissolved oxygen (DO) conditions were below the hypoxia threshold (2.9 mg/L) in the lower portion of the water column at Point Street Bridge and Pomham Rocks, and in the upper and middle portions of the water column at Phillipsdale Landing. The highest fluorescence readings for the week were measured around 1.5 meters below the surface at Phillipsdale Landing.