Water Clarity

Water clarity was measured at seven locations in the Providence River and Seekonk River estuaries on July 23, 2025. In the five days prior to the survey, trace amounts of precipitation were recorded at TF Green. Secchi depth averaged 2.0 meters. The lowest clarity this week (1.7 meters) was measured at Edgewood Yacht Club and Pomham Rocks, while the greatest clarity (2.5 meters) was measured at Bullock’s Reach. There was no clear north-to-south gradient in water clarity among the sites this week. Overall, water clarity remained approximately the same from the previous measurements (data collected July 16, 2025).

Water clarity was measured at seven locations in the Providence River and Seekonk River estuaries on July 16, 2025. In the five days prior to the survey, 0.01 inches of precipitation were recorded at TF Green. Secchi depth averaged 1.9 meters. The lowest clarity this week (1.5 meters) was measured at India Point Park, while the greatest clarity (2.5 meters) was measured at Point Street Bridge. There was no clear north-to-south gradient in water clarity among the sites this week. Overall, water clarity at most locations remained relatively consistent compared to previous measurements (data collected July 8, 2025). However, water quality at Phillipsdale Landing increased (0.8 meters) and water quality at Conimicut Point decreased (1.6 meters), both compared to previous measurements (data collected July 8, 2025).

Water clarity was measured at eight locations in the Providence River and Seekonk River estuaries on July 8, 2025. In the five days prior to the survey, 0.55 inches of precipitation were recorded at TF Green. Secchi depth averaged 2.3 meters. The lowest clarity this week (1.3 meters) was measured at Phillipsdale Landing, while the greatest clarity (3.7 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 remained approximately the same from the previous measurements (data collected July 2, 2025).

​Water clarity was measured at eight locations in the Providence River and Seekonk River estuaries on July 2, 2025. In the five days prior to the survey, 0.02 inches of precipitation were recorded at TF Green. Secchi depth averaged 2.2 meters. The lowest clarity this week (1.4 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 remained approximately the same from the previous measurements (data collected June 25, 2025).

Water clarity was measured at seven locations in the Providence River and Seekonk River estuaries on June 25, 2025. In the five days prior to the survey, 0.01 inches of precipitation were recorded at TF Green. Secchi depth averaged 2.3 meters. The lowest clarity this week (1.3 meters) was measured at Phillipsdale Landing, while the greatest clarity (2.7 meters) was measured at India Point Park and Pomham Rocks. There was no clear north-to-south gradient in water clarity among the sites this week. Overall, water clarity at most locations remained relatively consistent compared to previous measurements (data collected June 11, 2025).

Water clarity was measured at seven locations in the Providence River and Seekonk River estuaries on June 11, 2025. In the five days prior to the survey, 0.85 inches of precipitation were recorded at TF Green. Secchi depth averaged 2.4 meters. The lowest clarity this week (2.1 meters) was measured at Phillipsdale Landing, while the greatest clarity (2.9 meters) was measured at India Point Park. There was no clear north-to-south gradient in water clarity among the sites this week. Overall, water clarity among most sites remained relatively consistent compared to previous measurements (data collected June 4, 2025). However, water quality at Point Street Bridge decreased (1.1 meters) and water quality at Bullock’s Reach decreased (1.3 meters), both compared to previous measurements (data collected June 4, 2025).

​Water clarity was measured at eight locations in the Providence River and Seekonk River estuaries on June 4, 2025. In the five days prior to the survey, 0.39 inches of precipitation were recorded at TF Green. Secchi depth averaged 2.6 meters. The lowest clarity this week (1.9 meters) was measured at Phillipsdale Landing, while the greatest clarity (3.5 meters) was measured at Point Street Bridge and Bullock’s Reach. There was no clear north-to-south gradient in water clarity among the sites this week. Overall, water clarity remained approximately the same from the previous measurements (data collected May 28, 2025).

Water clarity was measured at eight locations in the Providence River and Seekonk River estuaries on May 28, 2025. In the five days prior to the survey, 0.15 inches of precipitation were recorded at TF Green. Secchi depth averaged 2.5 meters. The lowest clarity this week (1.7 meters) was measured at Phillipsdale Landing, while the greatest clarity (2.9 meters) was measured at Edgewood Shoal. There was no clear north-to-south gradient in water clarity among the sites this week. Overall, water clarity among most sites remained relatively consistent compared to previous measurements (data collected May 21, 2025). However, water quality at Conimicut Point decreased (1.2 meters) from the previous measurements (data collected May 21, 2025).

Water clarity was measured at eight locations in the Providence River and Seekonk River estuaries on May 21, 2025. In the five days prior to the survey, 0.04 inches of precipitation were recorded at TF Green. Secchi depth averaged 2.8 meters. The lowest clarity this week (2.1 meters) was measured at Phillipsdale Landing, while the greatest clarity (3.9 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 14, 2025).

​Water clarity was measured at seven locations in the Providence River and Seekonk River estuaries on May 14, 2025. In the five days prior to the survey, 1.73 inches of precipitation were recorded at TF Green. Secchi depth averaged 2.0 meters. The lowest clarity this week (1.7 meters) was measured at Phillipsdale Landing, Edgewood Yacht Club, and Bullock’s Reach, while the greatest clarity (2.5 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 decreased from the previous measurements (data collected May 7, 2025).