Water column profiles were conducted at seven locations in the Providence and Seekonk River estuaries on August 9, 2023 using a Seabird Electronics profiler. In the five days leading up to the survey, 0.48 inches of precipitation were recorded at T.F. Green. Most sites were moderately to strongly stratified this week, other than Edgewood Yacht Club, which was weakly stratified.
Dissolved oxygen (DO) conditions were below the hypoxia threshold (2.9 mg/L) in the lower portions of the water column at Pomham Rocks and India Point Park, and in the middle and bottom portions of the water column at Phillipsdale Landing. The highest fluorescence readings for the week were measured around 2 meters below the surface at India Point Park.