Water column profiles were conducted at eight locations in the Providence and Seekonk River estuaries on July 30, 2025 using a Seabird Electronics profiler. In the five days leading up to the survey, 1.91 inches of precipitation were recorded at T.F. Green. Water column stratification varied between the sites this week from weakly stratified to moderately stratified.
Dissolved oxygen (DO) conditions were below the hypoxia threshold (2.9 mg/L) in the middle portion of the water column at Pomham Rocks, in the middle and lower portions of the water column at India Point Park, Edgewood Yacht Club, Pawtuxet Cove, and Phillipsdale Landing, and in all portions of the water column at Point Street Bridge. The highest fluorescence readings for the week were measured around 1 meter below the surface at Phillipsdale Landing.