Water clarity was measured at eight locations in the Providence River and Seekonk River estuaries on September 30, 2026. In the five days prior to the survey, 4.22 inches of precipitation were recorded at TF Green. Secchi depth averaged 3.4 meters. The lowest clarity this week (2.5 meters) was measured at Phillipsdale Landing and Pawtuxet Cove, while the greatest clarity (4.1 meters) was observed at Conimicut Point and Bullocks Reach. There was no clear north-to-south gradient in water clarity among the sites this week. Overall, water clarity slightly decreased from the previous measurements (data collected September 22, 2026).
