Water Clarity

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).

​Water clarity was measured at seven locations in the Providence River and Seekonk River estuaries on May 7, 2025. In the five days prior to the survey, 2.10 inches of precipitation were recorded at TF Green. Secchi depth averaged 2.8 meters. The lowest clarity this week (1.5 meters) was measured at Phillipsdale Landing, while the greatest clarity (4.3 meters) was measured at Conimicut Point. There was a general north-to-south trend of increasing water clarity among the sites this week.

​Water clarity was measured at seven locations in the Providence River and Seekonk River estuaries on October 30, 2024. In the five days prior to the survey, 0.03 inches of precipitation were recorded at TF Green. Secchi depth averaged 5.5 meters. The lowest clarity this week (2.9 meters) was measured at Phillipsdale Landing, while the greatest clarity (8.5 meters) was measured at Bullock Reach Buoy. 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 October 23, 2024).

​Water clarity was measured at seven locations in the Providence River estuary on October 23, 2024. No precipitation was recorded at TF Green in the five days prior to the survey. Secchi depth averaged 5.0 meters. The lowest clarity this week (4.7 meters) was measured at Conimicut Point, while the greatest clarity (5.5 meters) was measured at Edgewood Yacht Club. There was no distinct north-to-south trend of water clarity among the sites this week. Overall, water clarity increased from the previous measurements (data collected October 17, 2024).

Water clarity was measured at seven locations in the Providence River and Seekonk River estuaries on October 17, 2024. 0.14 inches of precipitation were recorded at TF Green in the five days prior to the survey. Secchi depth averaged 3.6 meters. The lowest clarity this week (1.5 meters) was measured at Phillipsdale Landing, while the greatest clarity (4.4 meters) was measured at Bullock Reach Buoy. 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 October 9, 2024).​​

​Water clarity was measured at seven locations in the Providence River and Seekonk River estuaries on October 9, 2024. 0.81 inches of precipitation were recorded at TF Green in the five days prior to the survey. Secchi depth averaged 2.3 meters. The lowest clarity this week (1.2 meters) was measured at Phillipsdale Landing, while the greatest clarity (3.2 meters) was measured at Bullock Reach Buoy. There was a north-to-south trend of increasing water clarity among the sites this week.  Overall, water clarity increased from the previous measurements (data collected October 3, 2024).​