Water column profiles were conducted at six locations in the Providence and Seekonk River estuaries on August 2, 2023 using a Seabird Electronics profiler. In the five days leading up to the survey, 0.66 inches of precipitation were recorded at T.F. Green. All sites were moderately to strongly stratified this week.
Dissolved oxygen (DO) conditions were below the hypoxia threshold (2.9 mg/L) in the middle and lower portions of the water column at every profiled site, and in the full column (upper, middle and bottom portions) at Point Street Bridge, India Point Park, and Phillipsdale Landing. The highest fluorescence readings for the week were measured around 2 meters below the surface at Conimicut Point.