Daria DiBiasio – Narrabay

June 24, 2026

Water column profiles were conducted using a Seabird Electronics profiler at six locations in the Providence River and one location in the Seekonk River on June 24, 2026. In the four days leading up to and including the survey day, there were 2.01 inches of rain recorded at T.F. Green International Airport (Warwick, RI). The water column was moderately stratified at India Point Park, Pomham Rocks, and Conimicut Point, weakly stratified at, Bullock’s Reach, Phillipsdale Landing, and Edgewood Yacht Club, and well-mixed at Pawtuxet Cove.

Dissolved oxygen conditions were below the hypoxia threshold (2.9 mg/L) in the lower part of the water column at Edgewood Yacht Club, Pawtuxet Cove, Pomham Rocks, Phillipsdale Landing, and India Point Park. The highest fluorescence reading was observed about 1.25 meters below the surface at Edgewood Yacht Club.

July 8, 2026

Water clarity was measured at eight locations in the Providence River and Seekonk River estuaries on July 8, 2026. In the five days prior to the survey, 2.89 inches of precipitation were recorded at TF Green. Secchi depth averaged 2.3 meters. The lowest clarity this week (1.7 meters) was measured at Phillipsdale Landing, while the greatest clarity (2.5 meters) was observed at several sampling locations. There was a general north-to-south gradient in water clarity among the sites this week. Overall, water clarity decreased from the previous measurements (data collected June 24, 2026).

June 17, 2026

Water column profiles were conducted using a Seabird Electronics profiler at six locations in the Providence River and one location in the Seekonk River on June 17, 2026. In the four days leading up to and including the survey day, there were 0.01 inches of rain recorded at T.F. Green International Airport (Warwick, RI). The water column was moderately stratified at India Point Park, weakly stratified at Pomham Rocks, Point St. Bridge, Conimicut Point, Edgewood Yacht Club, and Bullock’s Reach, and well-mixed at Phillipsdale Landing.

Dissolved oxygen conditions were slightly below the hypoxia threshold (2.9 mg/L) in the lower part of the water column at Edgewood Yacht Club and India Point Park. The highest fluorescence reading was observed about 2.00 meters below the surface at India Point Park.

June 24, 2026

Water clarity was measured at seven locations in the Providence River and Seekonk River estuaries on June 24, 2026. In the five days prior to the survey, 2.01 inches of precipitation were recorded at TF Green. Secchi depth averaged 2.9 meters. The lowest clarity this week (2.3 meters) was measured at Phillipsdale Landing and Pawtuxet Cove, while the greatest clarity (3.5 meters) was measured at Conimicut Point. There was no clear north-to-south gradient in water clarity among the sites this week. Overall, water clarity increased from the previous measurements (data collected June 17, 2026).

June 17, 2026

Water clarity was measured at six locations in the Providence River and Seekonk River estuaries on June 17, 2026. In the five days prior to the survey, 0.01 inches of precipitation were recorded at TF Green. Secchi depth averaged 2.5 meters. The lowest clarity this week (1.9 meters) was measured at Phillipsdale Landing and India Point Park, while the greatest clarity (3.3 meters) was measured at Conimicut Point. There was a general north-to-south trend of increasing water clarity among the sites this week. Overall, water clarity increased from the previous measurements (data collected June 10, 2026).

June 10, 2026

Water column profiles were conducted using a Seabird Electronics profiler at seven locations in the Providence River and one location in the Seekonk River on June 10, 2026. In the four days leading up to and including the survey day, there were 0.22 inches of rain recorded at T.F. Green International Airport (Warwick, RI). The water column was moderately stratified at Phillipsdale Landing, weakly stratified at India Point Park, Pomham Rocks, Edgewood Shoal, Edgewood Yacht Club, and Bullock’s Reach, and well-mixed at Conimicut Point and Pawtuxet Cove.

Dissolved oxygen conditions were slightly below the hypoxia threshold (2.9 mg/L) in the lower part of the water column at Edgewood Shoal and Phillipsdale Landing. The highest fluorescence reading was observed about 1.00 meter below the surface at Phillipsdale Landing.

June 10, 2026

Water clarity was measured at eight locations in the Providence River and Seekonk River estuaries on June 10, 2026. In the five days prior to the survey, 0.22 inches of precipitation were recorded at TF Green. Secchi depth averaged 1.9 meters. The lowest clarity this week (0.7 meters) was measured at Phillipsdale Landing, while the greatest clarity (2.9 meters) was measured at Conimicut Point. There was a general north-to-south trend of increasing water clarity among the sites this week. Overall, water clarity decreased from the previous measurements (data collected June 3, 2026).

June 3, 2026

Water column profiles were conducted using a Seabird Electronics profiler at seven locations in the Providence River and one location in the Seekonk River on June 3, 2026. In the four days leading up to and including the survey day, there were 0.22 inches of rain recorded at T.F. Green International Airport (Warwick, RI). The water column was moderately stratified at Point St Bridge, Pomham Rocks, India Point Park, and Phillipsdale Landing, weakly stratified at Bullock’s Reach, Conimicut Point, and Edgewood Yacht Club, and well-mixed at Pawtuxet Cove.

Dissolved oxygen conditions were not below the hypoxia threshold (2.9 mg/L) at any of the visited locations. The highest fluorescence reading was observed about 2.50 meters below the surface at Pomham Rocks.

June 3, 2026

Water clarity was measured at seven locations in the Providence River and Seekonk River estuaries on June 3, 2026. In the five days prior to the survey, 0.21 inches of precipitation were recorded at TF Green. Secchi depth averaged 2.7 meters. The lowest clarity this week (1.9 meters) was measured at Phillipsdale Landing and Edgewood Yacht Club, while the greatest clarity (3.5 meters) was measured at Conimicut Point. There was no clear north-to-south gradient in water clarity among the sites this week. Overall, water clarity increased from the previous measurements (data collected May 28, 2026).

May 27, 2026

Water column profiles were conducted using a Seabird Electronics profiler at six locations in the Providence River and one location in the Seekonk River on May 27, 2026. In the four days leading up to and including the survey day, there were 1.04 inches of rain recorded at T.F. Green International Airport (Warwick, RI). The water column was strongly stratified at Pawtuxet Cove, India Point Park, and Phillipsdale Landing, moderately stratified at Pomham Rocks, Bullock’s Reach and Conimicut Point, and weakly stratified at Edgewood Yacht Club.

Dissolved oxygen conditions were slightly below the hypoxia threshold (2.9 mg/L) in the lower part of the water column at Phillipsdale Landing. The highest fluorescence reading was observed about 2.25 meters below the surface at Pomham Rocks.