Water Clarity

Water clarity was measured at eight locations in the Providence River and Seekonk River estuaries on May 12, 2026. In the five days prior to the survey, 0.57 inches of precipitation were recorded at TF Green. Secchi depth averaged 2.1 meters. The lowest clarity this week (1.9 meters) was measured at Bullock Reach and Edgewood Shoal, while the greatest clarity (2.5 meters) was measured at Pawtuxet Cove. 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, 2026).

Water clarity was measured at eight locations in the Providence River and Seekonk River estuaries on May 7, 2026. In the five days prior to the survey, 0.05 inches of precipitation were recorded at TF Green. Secchi depth averaged 3.0 meters. The lowest clarity this week (1.7 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 six locations in the Providence River and Seekonk River estuaries on October 15, 2025. In the five days prior to the survey, 2.39 inches of precipitation were recorded at TF Green. Secchi depth averaged 3.0 meters. The lowest clarity this week (1.8 meters) was measured at Conimicut Point, while the greatest clarity (3.3 meters) was measured at Edgewood Yacht Club. There was a general north-to-south trend of increasing water clarity among the sites this week. Compared to previous measurements taken on October 1, 2025, water clarity remained relatively consistent at most sites. However, Pawtuxet Cove showed a notable decrease of 1.1 meters and both Bullock Reach and Conimicut Point showed a notable increase of 1.1 meters.

Water clarity was measured at eight locations in the Providence River and Seekonk River estuaries on October 1, 2025. In the five days prior to the survey, 0.06 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 India Point Park, while the greatest clarity (3.3 meters) was measured at Edgewood Yacht Club. 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 September 17, 2025).

Water clarity was measured at seven locations in the Providence River and Seekonk River estuaries on September 17, 2025. In the five days prior to the survey there was no precipitation recorded at TF Green. Secchi depth averaged 2.2 meters. The lowest clarity this week (1.7 meters) was measured at India Point Park, while the greatest clarity (2.7 meters) was measured at Bullock Reach. 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 September 10, 2025).

Water clarity was measured at eight locations in the Providence River and Seekonk River estuaries on September 10, 2025. In the five days prior to the survey, 1.59 inches of precipitation were recorded at TF Green. Secchi depth averaged 3.2 meters. The lowest clarity this week (2.8 meters) was measured at Conimicut Point, Bullock Reach, and Edgewood Yacht Club, while the greatest clarity (3.9 meters) was measured at India Point Park. There was a general south-to-north trend of increasing water clarity among the sites this week. Overall, water clarity increased from the previous measurements (data collected September 3, 2025).

Water clarity was measured at eight locations in the Providence River and Seekonk River estuaries on September 3, 2025. In the five days prior to the survey, 0.00 inches of precipitation were recorded at TF Green. Secchi depth averaged 2.0 meters. The lowest clarity this week (1.2 meters) was measured at Phillipsdale Landing, 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. Compared to previous measurements taken on August 27, 2025, water clarity remained relatively consistent at most sites. However, India Point Park showed a notable decrease of 1.3 meters.

Water clarity was measured at eight locations in the Providence River and Seekonk River estuaries on August 27, 2025. In the five days prior to the survey, 0.02 inches of precipitation were recorded at TF Green. Secchi depth averaged 2.4 meters. The lowest clarity this week (0.9 meters) was measured at Phillipsdale Landing, while the greatest clarity (3.3 meters) was measured at Conimicut Point and India Point Park. There was a general north-to-south trend of increasing water clarity among the sites this week. Compared to previous measurements taken on August 20, 2025, water clarity remained remained relatively consistent at most sites. However, India Point Park showed a notable increase of 1.1 meters.

Water clarity was measured at seven locations in the Providence River and Seekonk River estuaries on August 20, 2025. In the five days prior to the survey, 0.89 inches of precipitation were recorded at TF Green. Secchi depth averaged 2.2 meters. The lowest clarity this week (1.1 meters) was measured at Phillipsdale Landing, while the greatest clarity (3.1 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 August 13, 2025).

Water clarity was measured at three locations in the Providence River and Seekonk River estuaries on August 13, 2025. Due to an equipment malfunction, only a limited number of sites were visited during this sampling day. In the five days prior to the survey, 0.00 inches of precipitation were recorded at TF Green. Secchi depth averaged 2.5 meters. The lowest clarity this week (2.1 meters) was measured at Edgewood Yacht Club, while the greatest clarity (3.1 meters) was measured at Conimicut Point. There was a general north-to-south trend of increasing water clarity among the sites this week. Compared to the measurements taken on July 23, 2025, water clarity at Bullock Reach and Edgewood Yacht Club remained unchanged on July 30, while Conimicut Point showed an increase in water clarity of 0.8 meters.