Water column profiles were conducted at seven locations in the Providence and Seekonk River estuaries on May 18, 2023 using a Seabird Electronics profiler. There was no precipitation recorded at T.F. Green in the three days leading up to the survey. Despite the lack of recent rainfall, Phillipsdale Landing still showed strong density stratification and Bullock Reach Buoy showed moderate density stratification; all other sites were well mixed to weakly stratified.
Dissolved oxygen (DO) conditions remained above the hypoxia threshold (2.9 mg/L) at all sites this week; the lowest DO observed was approximately 6.62 mg/L near the middle of the water column at Pomham Rocks. Fluorescence was low to moderately elevated, with the highest value (10.09 mg/m3) observed 2.5 m deep at Conimicut Point West.