Water Column Profiles

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 September 16, 2026. In the five days leading up to this, there were 4.18 inches of rain recorded at T.F. Green International Airport (Warwick, RI). The water column was weakly stratified at Bullock Reach, Conimicut Point, Edgewood Yacht Club and Pomham Rocks. Moderate stratification was observed at India Point Park and Phillipsdale Landing. The water column at Pawtuxet Cove was strongly stratified.

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

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 September 9, 2026. In the five days leading up to this, there were 0.06 inches of rain recorded at T.F. Green International Airport (Warwick, RI). The water column was weakly stratified at Phillipsdale Landing and well-mixed at all other profiling locations: Bullock reach, Conimicut Point, Edgewood Yacht Club, Pawtuxet Cove, Pomham Rocks, Point Street Bridge and India Point Park.

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

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 September 2, 2026. In the five days leading up to this, there were 1.25 inches of rain recorded at T.F. Green International Airport (Warwick, RI). The water column was weakly stratified at every profiling location: Bullock Reach, Conimicut Point, Pawtuxet Cove, Edgewood Yacht Club, Edgewood Shoal, Pomham Rocks, India Point Park and Phillipsdale Landing.

Dissolved oxygen conditions below the hypoxia threshold (2.9 mg/L) were observed in the lower part of the water column at Edgewood Yacht Club, Edgewood Shoal and Pomham Rocks. The entire water column at India Point Park and Phillipsdale Landing had dissolved oxygen concentrations below the hypoxia threshold. The highest fluorescence reading was observed 1.75 meters below the surface at Pawtuxet Cove.

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 August 26, 2026. In the five days leading up to this, there were 0.73 inches of rain recorded at T.F. Green International Airport (Warwick, RI). Strong water column stratification was observed at Edgewood Yacht Club and Phillipsdale Landing. The water column was moderately stratified at Pomham Rocks. Bullock Reach, Conimicut Point, and India Point Park exhibited weak stratification. The water column at Pawtuxet Cove was well mixed.

Dissolved oxygen conditions below the hypoxia threshold (2.9 mg/L) were observed in the lower part of the water column at Bullock Reach, Conimicut Point, Pomham Rocks, India Point Park and Phillipsdale Landing. The highest fluorescence reading was observed one meter below the surface at Pawtuxet Cove.

Water column profiles were conducted using a Seabird Electronics profiler at sixlocations in the Providence River and one location in the Seekonk River on August 19, 2026. In the five days leading up to this, there were 0.31 inches of rain recorded at T.F. Green International Airport (Warwick, RI). Moderate water column stratification was observed at Phillipsdale Landing. The water column was weakly stratified at Conimicut Point, Bullock Reach, Edgewood Yacht Club, Pomham Rocks, and India Point Park. The water column at Pawtuxet Cove was well mixed.

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

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 August 5, 2026. In the five days leading up to this, there were 2.57 inches of rain recorded at T.F. Green International Airport (Warwick, RI). The water column was strongly stratified at Conimicut Point, Edgewood Yacht Club, Edgewood Shoal, India Point Park and Phillipsdale Landing; moderate water column stratification was observed at Bullock Reach, Pawtuxet Cove and Pomham Rocks.

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

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 July 23, 2026. In the five days leading up to this, there were 2.28 inches of rain recorded at T.F. Green International Airport (Warwick, RI). The water column was strongly stratified at Phillipsdale Landing, moderately stratified at Bullock’s Reach, India Point Park, and Pomham Rocks, and weakly stratified at Conimicut Point, Edgewood Yacht Club, and Pawtuxet Cove.

Dissolved oxygen conditions were slightly below the hypoxia threshold (2.9 mg/L) throughout the water column at Phillipsdale Landing and in the lower part of the water column at Edgewood Yacht Club, Pomham Rocks, Conimicut Point, and India Point Park. The highest fluorescence reading was observed about 1.75 meters below the surface at Phillipsdale Landing.

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 July 15, 2026. In the five days leading up to this, there were trace amounts of rain recorded at T.F. Green International Airport (Warwick, RI). The water column was moderately stratified at Phillipsdale Landing, Pomham Rocks, and India Point Park, and weakly stratified at Edgewood Yacht Club, Pawtuxet Cove, Bullock’s Reach, Conimicut Point, and Point Street Bridge.

Dissolved oxygen conditions were slightly below the hypoxia threshold (2.9 mg/L) throughout the water column at Point Street Bridge and in the lower part of the water column at Edgewood Yacht Club, Pomham Rocks, Phillipsdale Landing, and India Point Park. The highest fluorescence reading was observed about 0.75 meters below the surface at India Point Park.

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 July 8, 2026. In the five days leading up to this, there were 2.89 inches of rain recorded at T.F. Green International Airport (Warwick, RI). The water column was strongly stratified at Pawtuxet Cove and Phillipsdale Landing, moderately stratified at India Point Park, Bullock’s Reach, and Conimicut Point, weakly stratified at Edgewood Yacht Club and Pomham Rocks, and well-mixed at Edgewood Shoal.

Dissolved oxygen conditions were below the hypoxia threshold (2.9 mg/L) in the lower part of the water column at Edgewood Yacht Club, Edgewood Shoal, Pawtuxet Cove, Pomham Rocks, Phillipsdale Landing, and India Point Park. The highest fluorescence reading was observed about 1.00 meters below the surface at Phillipsdale Landing.

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 five days leading up to this, there were 2.02 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.