Water column profiles were conducted at seven locations in the Providence and Seekonk River estuaries on September 4, 2024 using a Seabird Electronics profiler. In the five days leading up to the survey, no precipitation was recorded at T.F. Green. Water column stratification at the sites varied from well-mixed at Pomham Rocks, to weakly stratified at all other profiled sites.
Dissolved oxygen (DO) conditions were below the hypoxia threshold (2.9 mg/L) in the lower portion of the water column at Phillipsdale Landing, Edgewood Yacht Club, and India Point Park. The highest fluorescence readings for the week were measured around 1 meter below the surface at Pomham Rocks.