News

Walker Point Overall, water quality at Walker Point was poor to good this week. Weather conditions were moderately rainy this week, with a total of 1.33 inches recorded at T.F. Green, and the majority of rainfall occurring on the 21st.  Blackstone River flow was highest on August August 23rd, where the flow slightly exceeded the… Read more: August 17 – August 23, 2026

Walker Point Sondes were swapped this week on August 12th. Overall, water quality at Walker Point was poor to good this week. Weather conditions were mildly rainy this week, with a total of 0.26 inches recorded at T.F. Green, and the majority of rainfall occurring on the 13rd.  Blackstone River flow was highest on August… Read more: August 10 – August 16, 2026

Walker Point Overall, water quality at Walker Point was poor this week. Weather conditions were rainy this week, with a total of 2.52 inches recorded at T.F. Green, and the majority of rainfall occurring on the 3rd.  Blackstone River flow reached its peak on August 4th, where the flow greatly exceeded the 20-year daily median… Read more: August 3 – August 9, 2026

Walker Point Sondes were swapped this week on July 28th. Overall, water quality at Walker Point was poor this week. Weather conditions were rainy this week, with a total of 1.25 inches recorded at T.F. Green, and the majority of rainfall occurring on the 29th.  Blackstone River flow reached its peak on July 30th, where… Read more: July 27 – August 2, 2026

Water clarity was measured at eight locations in the Providence River and Seekonk River estuaries on September 2, 2026. In the five days prior to the survey, 1.25 inches of precipitation were recorded at TF Green. Secchi depth averaged 2.6 meters. The lowest clarity this week (2.3 meters) was measured at Phillipsdale Landing, while the… Read more: September 2, 2026

Nutrient samples were collected from six river stations and seven bay stations on August 19th. All bay stations were sampled at the surface and bottom. In the five days prior to sampling, 0.13” of precipitation were recorded at T.F. Green. Among the river stations sampled, the highest total nitrogen (TN), total dissolved nitrogen (TDN), and… Read more: August 19, 2026

Nutrient samples were collected from twelve river stations and eight bay stations on August 5th. All bay stations were sampled at the surface; Edgewood Shoal was sampled at the surface and bottom. In the five days prior to sampling, 2.57” of precipitation were recorded at T.F. Green. Among the river stations sampled, the highest total… Read more: August 5, 2026

Water clarity was measured at seven locations in the Providence River and Seekonk River estuaries on August 26, 2026. In the five days prior to the survey, 0.73 inches of precipitation were recorded at TF Green. Secchi depth averaged 2.1 meters. The lowest clarity this week (1.5 meters) was measured at Pomham Rocks, while the… Read more: August 26, 2026

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… Read more: August 26, 2026

Phytoplankton samples were collected on August 5, 2026 at Bullock Reach and analyzed in the laboratory shortly after collection. The water temperature was 25.39 °C, the salinity was 21.83 psu, and the chlorophyll a was 18.18 ug/L. It was clear, hot and sunny with murky water on this day. The qualitative tow net sample had… Read more: August 5, 2026

Surface chlorophyll data were collected on August 26, 2026, while the R/V Data Stream was underway collecting bacteria samples in the Providence and Seekonk River Estuaries. The average chlorophyll concentrations were categorized as fair overall with all areas sampled having average chlorophyll concentrations between 5 µg/L and 20 µg/L. Overall, chlorophyll ranged from 2.23 µg/L to 172.72… Read more: August 26, 2026

On August 26th, 2026 twenty stations were sampled for fecal coliform bacteria in the Providence and Seekonk Rivers; five of these stations were also sampled for enterococci bacteria. In the five days prior to sampling, 0.73 inches of precipitation was recorded at TF Green. Overall, bacteria counts were higher than during the previous sampling event.… Read more: August 26, 2026

On August 12th, 2026 nineteen stations were sampled for fecal coliform bacteria in the Providence and Seekonk Rivers; five of these stations were also sampled for enterococci bacteria. There was no precipitation at TF Green over the five days prior to the August 12th, 2026 sampling event. Overall, bacteria counts were lower than during the… Read more: August 12, 2026

Phytoplankton samples were collected on July 8, 2026 at Bullock Reach and analyzed in the laboratory shortly after collection. The water temperature was 21.7 °C, the salinity was 27.4 PSU, and the chlorophyll a was 1.09 ug/L. The qualitative tow net sample had a long filtration time. It had a dark brown coloration and contained… Read more: July 8, 2026

Phytoplankton samples were collected on June 24, 2026 at Bullock Reach and analyzed in the laboratory shortly after collection. It was sunny and clear on this day. The water temperature was 21.3 °C, the salinity was 27.2 PSU, and the chlorophyll a was 0.84 ug/L. The qualitative tow net sample had a short filtration time… Read more: June 24, 2026

On July 30th, 2026, twenty stations were sampled for fecal coliform bacteria in the Providence and Seekonk Rivers; five of these stations were also sampled for enterococci bacteria. In the five days prior to sampling, 0.72 inches of precipitation were recorded at TF Green. Fecal coliform counts were higher in the Seekonk River, compared to… Read more: July 30, 2026

Nutrient samples were collected from seven river stations and seven bay stations on July 22nd and 23rd.  All bay stations were sampled at the surface and bottom. In the five days prior to sampling, 2.28 inches of precipitation were recorded at T.F. Green.  Among the river stations sampled, the highest total nitrogen (TN), total dissolved… Read more: July 22-23, 2026

Nutrient samples were collected from thirteen river stations and eight bay stations on July 8th.  All bay stations were sampled at the surface; Edgewood Shoal was sampled at the surface and bottom. In the five days prior to sampling, 2.89 inches of precipitation were recorded at T.F. Green.  Among the river stations sampled, the highest… Read more: July 8, 2026

Surface chlorophyll data were collected on August 19, 2026, while the R/V Data Stream was underway collecting bacteria samples in the Providence and Seekonk River Estuaries. The chlorophyll concentrations were categorized as fair overall with most areas sampled having average chlorophyll concentrations between 5 µg/L and 20 µg/L, with the exception of the Seekonk River, which had… Read more: August 19, 2026

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… Read more: August 19, 2026

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… Read more: August 5, 2026

Water clarity was measured at seven locations in the Providence River and Seekonk River estuaries on August 19, 2026. In the five days prior to the survey, 0.13 inches of precipitation were recorded at TF Green. Secchi depth averaged 2.4 meters. The lowest clarity this week (0.7 meters) was measured at Phillipsdale Landing, while the… Read more: August 19, 2026

Surface chlorophyll data were collected on July 30, 2026, while the R/V Data Stream was underway collecting bacteria samples in the Providence and Seekonk River Estuaries. The chlorophyll concentrations were categorized as fair overall with most areas sampled having average chlorophyll concentrations between 5 µg/L and 20 µg/L, with the exception of the Seekonk River, which had… Read more: July 30, 2026

Water clarity was measured at eight locations in the Providence River and Seekonk River estuaries on August 5, 2026. In the five days prior to the survey, 2.57 inches of precipitation were recorded at TF Green. Secchi depth averaged 1.8 meters. The lowest clarity this week (1.2 meters) was measured at Pawtuxet Cove, while the… Read more: August 5, 2026

Phytoplankton samples were collected on June 10, 2026 at Bullock’s Reach and analyzed in the laboratory shortly after collection. On this day, the water temperature was 20.03 °C, the salinity was 27.2 PSU, and the chlorophyll a was 1.54 ug/L. The qualitative tow net sample had a long filtration time and was cloudy and light… Read more: June 10, 2026

Surface chlorophyll data were collected on July 23, 2026, while the R/V Data Stream was underway collecting bacteria samples in the Providence and Seekonk River Estuaries. The chlorophyll concentrations were categorized as fair overall with most areas sampled having average chlorophyll concentrations between 5 µg/L and 20 µg/L, with the exception of the Seekonk River, which had… Read more: July 23, 2026

Walkers Point Overall, the water quality at Walkers Point was good to fair this week. Weather conditions were dry this week, except for 1.88 inches of precipitation recorded at T.F. Green on July 25th.  Surface salinity averaged 15.9 ppt and ranged from 6.3 ppt to 27.4 ppt. At the bottom, salinity averaged 26.4 ppt and… Read more: July 20 – July 26, 2026

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… Read more: July 23, 2026

Water clarity was measured at seven locations in the Providence River and Seekonk River estuaries on July 23, 2026. In the five days prior to the survey, 2.28 inches of precipitation were recorded at TF Green. Secchi depth averaged 1.2 meters. The lowest clarity this week (0.6 meters) was measured at Phillipsdale Landing, while the… Read more: July 23, 2026

Nutrient samples were collected from seven river stations and seven bay stations on June 24th.  All bay stations were sampled at the surface and bottom. In the five days prior to sampling, 2.01 inches of precipitation were recorded at T.F. Green.  Among the river stations sampled, the highest total nitrogen (TN) was observed at Blackstone… Read more: June 24, 2026

Nutrient samples were collected from twelve river stations and eight bay stations on June 10th.  All bay stations were sampled at the surface, and Pawtuxet Cove was sampled at the surface and bottom. In the five days prior to sampling, 0.22 inches of precipitation were recorded at T.F. Green.  Among the river stations sampled, the… Read more: June 10, 2026

On July 15th, 2026, twenty stations were sampled for fecal coliform bacteria in the Providence and Seekonk Rivers; five of these stations were also sampled for enterococci bacteria. In the five days prior to sampling, 0.03 inches of precipitation were recorded at TF Green. Fecal coliform counts were higher in the Seekonk River, compared to… Read more: July 15, 2026

Walkers Point Sondes were swapped this week on the morning of July 14th (surface sonde) and 15th (bottom sonde). Overall, the water quality at Walkers Point was good to fair this week. Weather conditions included light rain events this week, with 0.69 inches of precipitation recorded at T.F. Green. Surface salinity averaged 21.6 ppt and… Read more: July 13 – July 19, 2026

Water clarity was measured at eight locations in the Providence River and Seekonk River estuaries on July 15, 2026. In the five days prior to the survey, there was no rain recorded at TF Green. Secchi depth averaged 2.7 meters. The lowest clarity this week (2.1 meters) was measured at Phillipsdale Landing and Edgewood Yacht… Read more: July 15, 2026

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… Read more: July 15, 2026

Walkers Point Overall, the water quality at Walkers Point was good to fair this week. Weather conditions were wet this week, with 2.63 inches of precipitation recorded at T.F. Green.  Surface salinity averaged 16.9 ppt and ranged from 4.5 ppt to 27.4 ppt. At the bottom, salinity averaged 27.4 ppt and ranged from 23.5 ppt… Read more: July 6 – July 12, 2026

Surface chlorophyll data were collected on July 15, 2026, while the R/V Data Stream was underway collecting bacteria samples in the Providence and Seekonk River Estuaries. The chlorophyll concentrations were categorized as fair overall with all areas sampled having average chlorophyll concentrations between 5 µg/L and 20 µg/L. Overall, chlorophyll ranged from 0.92 µg/L to… Read more: July 15, 2026

Surface chlorophyll data were collected on July 8, 2026, while the R/V Data Stream was underway collecting nutrient samples in the Providence and Seekonk River Estuaries. The chlorophyll concentrations were categorized as fair overall. The North Providence River Channel, Southern Providence River and Pawtuxet River Area exhibited good water quality with average chlorophyll concentrations <5… Read more: July 8, 2026

Walkers Point Sondes were swapped this week on the morning of June 30th. Overall, the water quality at Walkers Point was good to fair this week. Weather conditions included light rain events this week, with 0.26 inches of precipitation recorded at T.F. Green. Surface salinity averaged 20.6 ppt and ranged from 10.6 ppt to 28.9… Read more: June 29 – July 5, 2026

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… Read more: July 8, 2026

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… Read more: June 24, 2026

Water clarity was measured at eight locations in the Providence River and Seekonk River estuaries on July 8, 2026. In the five days prior to the survey, 2.89 inches of precipitation were recorded at TF Green. Secchi depth averaged 2.3 meters. The lowest clarity this week (1.7 meters) was measured at Phillipsdale Landing, while the… Read more: July 8, 2026

On June 17th, 2026, twenty stations were sampled for fecal coliform bacteria in the Providence and Seekonk Rivers; five of these stations were also sampled for enterococci bacteria. In the five days prior to sampling, 0.01 inches of precipitation were recorded at TF Green. Fecal coliform counts were lower in the Seekonk River, compared to… Read more: June 17, 2026

On June 3rd, 2026, twenty stations were sampled for fecal coliform bacteria in the Providence and Seekonk Rivers; five of these stations were also sampled for enterococci bacteria. In the five days prior to sampling, 0.25 inches of precipitation were recorded at TF Green. Fecal coliform counts were lower in the Seekonk River, compared to… Read more: June 3, 2026

Nutrient samples were collected from seven river stations and seven bay stations on May 27th. All bay stations were sampled at the surface and bottom. In the five days prior to sampling, 1.04 inches of precipitation were recorded at T.F. Green.  Among the river stations sampled, the highest total nitrogen (TN) and total dissolved nitrogen… Read more: May 27, 2026

Nutrient samples were collected from thirteen river stations and eight bay stations on May 12-13th. All bay stations were sampled at the surface, and Edgewood Shoal was sampled at the surface and bottom. In the five days prior to sampling, 0.57 inches of precipitation were recorded at T.F. Green.  Among the river stations sampled, the… Read more: May 12-13, 2026

Walkers Point Overall, the water quality at Walkers Point was good to fair this week. Weather conditions included light rain events this week, with 2.09 inches of precipitation recorded at T.F. Green. Surface salinity averaged 20.5 ppt and ranged from 10.0 ppt to 27.5 ppt. At the bottom, salinity averaged 20.5 ppt and ranged from… Read more: June 22 – 28, 2026

Surface chlorophyll data were collected on June 24, 2026, while the R/V Data Stream was underway collecting nutrient samples in the Providence and Seekonk River Estuaries. The chlorophyll concentrations were categorized as good overall. No areas exhibited fair or poor water quality (>10 µg/L and >20 µg/L, respectively). Overall, chlorophyll ranged from 1.08 µg/L to… Read more: June 24, 2026

Surface chlorophyll data were collected on June 10, 2026, while the R/V Data Stream was underway collecting nutrient samples in the Providence and Seekonk River Estuaries. The chlorophyll concentrations were categorized as fair overall. Only the Seekonk River exhibited poor water quality (>20 µg/L) while the remaining areas sampled exhibited fair water quality (>10 µg/L).… Read more: June 10, 2026

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 17, 2026. In the five days leading up to this, there were 0.01 inches of rain recorded at T.F. Green International Airport (Warwick, RI). The water column was moderately… Read more: June 17, 2026

Phytoplankton samples were collected on May 26, 2026, at Bullock’s Reach and analyzed in the laboratory shortly after collection. On this day, the water temperature was 18.12 °C, the salinity was 26.71 PSU, and the chlorophyll a was 1.68 µg/L. The qualitative tow net sample had a short filtration time, and was cloudy and light… Read more: May 26, 2026

Water clarity was measured at seven locations in the Providence River and Seekonk River estuaries on June 24, 2026. In the five days prior to the survey, 2.01 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 Phillipsdale Landing and Pawtuxet… Read more: June 24, 2026

Walkers Point Sondes were swapped this week on the morning of June 16th. Overall, the water quality at Walkers Point was good to fair this week. Weather conditions were dry this week, with 0.03 inches of precipitation recorded at T.F. Green. Surface salinity averaged 22.7 ppt and ranged from 15.4 ppt to 28.0 ppt. At… Read more: June 15 – 21, 2026

Walkers Point Overall, the water quality at Walkers Point was good this week. Weather conditions were dry this week, with no precipitation recorded at T.F. Green. Surface salinity averaged 20.4 ppt and ranged from 8.2 ppt to 28.5 ppt. At the bottom, salinity averaged 26.4 ppt and ranged from 21.8 ppt to 29.5 ppt. Temperatures… Read more: June 8 – 14, 2026

Walkers Point Sondes were swapped this week on the morning of June 2nd. Overall, the water quality at Walkers Point was good this week. Weather conditions included light rain events this week, with 0.26 inches of precipitation recorded at T.F. Green. Surface salinity averaged 18.0 ppt and ranged from 8.7 ppt to 26.5 ppt. At… Read more: June 1 – 7, 2026

Walker Point Overall, the water quality at Walkers Point was good this week. Weather conditions included light rain events this week, with 0.32 inches of precipitation recorded at T.F. Green. Surface salinity averaged 14.8 ppt and ranged from 4.3 ppt to 28.7 ppt. At the bottom, salinity averaged 27.1 ppt and ranged from 17.6 ppt… Read more: May 25 – 31, 2026

Walker Point Sondes were swapped this week on the morning of May 19th. Overall, the water quality at Walkers Point was good this week. Weather conditions included light rain events this week, with 0.96 inches of precipitation recorded at T.F. Green. Surface salinity averaged 16.1 ppt and ranged from 7.4 ppt to 25.1 ppt. At… Read more: May 18 – 24, 2026

Walker Point Overall, the water quality at Walker Point was good this week. Weather conditions were dry, with only 0.13 inches precipitation recorded at T.F. Green. Surface salinity averaged 12.5 ppt and ranged from 3.0 ppt to 25.2 ppt. At the bottom, salinity averaged 23.8 ppt and ranged from 7.0 ppt to 28.3 ppt. This… Read more: May 11 – 17, 2026

Walker Point The Walker Point sondes have been deployed for the season on May 7th, 2026. Overall, the water quality at Walker Point was good this week. Weather conditions included light rain events this week, with 0.58 inches of precipitation recorded at T.F. Green. Surface salinity averaged 9.0 ppt and ranged from 3.9 ppt to… Read more: May 4 – 10, 2026

Water clarity was measured at six locations in the Providence River and Seekonk River estuaries on June 17, 2026. In the five days prior to the survey, 0.01 inches of precipitation were recorded at TF Green. Secchi depth averaged 2.5 meters. The lowest clarity this week (1.9 meters) was measured at Phillipsdale Landing and India… Read more: June 17, 2026

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 June 10, 2026. In the five days leading up to this, there were 0.22 inches of rain recorded at T.F. Green International Airport (Warwick, RI). The water column was moderately… Read more: June 10, 2026

Water clarity was measured at eight locations in the Providence River and Seekonk River estuaries on June 10, 2026. In the five days prior to the survey, 0.22 inches of precipitation were recorded at TF Green. Secchi depth averaged 1.9 meters. The lowest clarity this week (0.7 meters) was measured at Phillipsdale Landing, while the… Read more: June 10, 2026

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 June 3, 2026. In the five days leading up to this, there were 0.25 inches of rain recorded at T.F. Green International Airport (Warwick, RI). The water column was moderately… Read more: June 3, 2026

Nutrient samples were collected from seven river stations and seven bay stations on April 29th. All bay stations were sampled at the surface and bottom. In the five days prior to sampling, trace amounts of precipitation were recorded at T.F. Green.  Among the river stations sampled, the highest total nitrogen (TN), and dissolved inorganic nitrogen… Read more: April 29, 2026

Nutrient samples were collected from thirteen river stations and eight bay stations on April 15th. All bay stations were sampled at the surface, and Edgewood Shoal was sampled at the surface and bottom. In the five days prior to sampling, 0.03” of precipitation were recorded at T.F. Green.  Among the river stations sampled, the highest… Read more: April 15, 2026

Nutrient samples were collected from fourteen river stations on April 1st. In the five days prior to sampling, 0.08” of precipitation were recorded at T.F. Green.  Among the river stations sampled, the highest total nitrogen (TN), total dissolved nitrogen (TDN), and dissolved inorganic nitrogen (DIN) were observed at Ten Mile River @ Central Ave (TN… Read more: April 1, 2026

Water clarity was measured at seven locations in the Providence River and Seekonk River estuaries on June 3, 2026. In the five days prior to the survey, 0.21 inches of precipitation were recorded at TF Green. Secchi depth averaged 2.7 meters. The lowest clarity this week (1.9 meters) was measured at Phillipsdale Landing and Edgewood… Read more: June 3, 2026

On May 20th, 2026, twenty stations were sampled for fecal coliform bacteria in the Providence and Seekonk Rivers; five of these stations were also sampled for enterococci bacteria. In the five days prior to sampling, trace amounts of precipitation were recorded at TF Green. Fecal coliform counts were lower in the Seekonk River, compared to… Read more: May 20, 2026

On May 7th,  2026, sixteen stations were sampled for fecal coliform bacteria in the Providence and Seekonk Rivers; five of these stations were also sampled for enterococci bacteria. In the five days prior to sampling, 0.28” of precipitation was recorded at TF Green. Fecal coliform counts were lower in the Seekonk River, compared to the… Read more: May 7, 2026

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 May 27, 2026. In the five days leading up to this, there were 1.04 inches of rain recorded at T.F. Green International Airport (Warwick, RI). The water column was strongly… Read more: May 27, 2026

Water clarity was measured at seven locations in the Providence River and Seekonk River estuaries on May 28, 2026. In the five days prior to the survey, 1.04 inches of precipitation were recorded at TF Green. Secchi depth averaged 2.0 meters. The lowest clarity this week (1.5 meters) was measured at Pomham Rocks and Pawtuxet… Read more: May 28, 2026

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 May 19, 2026. In the five days leading up to this, there were 0.11 inches of rain recorded at T.F. Green International Airport (Warwick, RI). The water column was strongly… Read more: May 19, 2026

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 May 12, 2026. In the five days leading up to this, there were 0.57 inches of rain recorded at T.F. Green International Airport (Warwick, RI). The water column was strongly… Read more: May 12, 2026

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 May 7, 2026. In the five days leading up to this, there were 0.28 inches of rain recorded at T.F. Green International Airport (Warwick, RI). The water column was strongly… Read more: May 7, 2026

Phytoplankton samples were collected on May 12, 2026 at Bullock’s Reach and analyzed in the laboratory shortly after collection. On this day, the water temperature was 13.60 °C, the salinity was 22.93 PSU, and the chlorophyll a was 8.36 µg/L. It was sunny and clear on this day. The qualitative tow net sample had a… Read more: May 12, 2026

Phytoplankton samples were collected on April 29, 2026 at Bullock Reach and analyzed in the laboratory shortly after collection. On this day, the water temperature was 10.70 °C, the salinity was 24.63 PSU. The qualitative tow net sample had a moderate filtration time. The filtrate was cloudy and reddish brown with some darker particulates. The… Read more: April 29, 2026

Phytoplankton samples were collected on April 15, 2026 at Bullock Reach and analyzed in the laboratory shortly after collection. It was sunny with light wind on this day. The water temperature was 12.66 °C, the salinity was 19.05 PSU, and the chlorophyll a was 15.54 ug/L. The qualitative tow net sample had a moderate filtration… Read more: April 15, 2026

Surface chlorophyll data were collected on May 20, 2026, while the R/V Data Stream was underway collecting bacteria samples in the Providence and Seekonk River Estuaries. The average chlorophyll concentrations were categorized as fair in all areas. The average chlorophyll concentrations were also categorized as fair over all areas surveyed. Overall, chlorophyll ranged from 0.97… Read more: May 20, 2026

Surface chlorophyll data were collected on May 7, 2026, while the R/V Data Stream was underway collecting bacteria samples in the Providence and Seekonk River Estuaries. The average chlorophyll concentrations were categorized as good in all areas. The average chlorophyll concentrations were categorized as good to fair over all areas surveyed. Overall, chlorophyll ranged from… Read more: May 7, 2026

Water clarity was measured at seven locations in the Providence River and Seekonk River estuaries on May 19, 2026. In the five days prior to the survey, 0.11 inches of precipitation were recorded at TF Green. Secchi depth averaged 2.9 meters. The lowest clarity this week (1.9 meters) was measured at Phillipsdale Landing, while the… Read more: May 19, 2026

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… Read more: May 12, 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… Read more: May 7, 2026

Surface chlorophyll data were collected on April 29, 2026, while the R/V Data Stream was underway collecting nutrient samples in the Providence and Seekonk River Estuaries. The average chlorophyll concentrations were categorized as good in all areas. The average chlorophyll concentrations were categorized as good to fair over all areas surveyed. Overall, chlorophyll ranged from… Read more: April 29, 2026

Surface chlorophyll data were collected on April 29, 2026, while the R/V Data Stream was underway collecting bacteria samples in the Providence and Seekonk River Estuaries. The average chlorophyll concentrations were categorized as good in all areas. The average chlorophyll concentrations were also categorized as good over all areas surveyed. Overall, chlorophyll ranged from 1.09… Read more: April 23, 2026

Surface chlorophyll data were collected on April 15, 2026, while the R/V Data Stream was underway collecting nutrient samples in the Providence and Seekonk River Estuaries. The average chlorophyll concentrations were categorized as fair in all areas. The average chlorophyll concentrations were also categorized as fair over all areas surveyed. Overall, chlorophyll ranged from 1.67… Read more: April 15, 2026

On April 23rd, 2026, twenty stations were sampled for fecal coliform bacteria in the Providence and Seekonk Rivers; four of these stations were also sampled for enterococci bacteria. In the five days prior to sampling, 0.21” of precipitation was recorded at TF Green. Overall, bacteria counts were higher than during the previous sampling event. Fecal… Read more: April 23, 2026

On April 8th, 2026, twenty stations were sampled for fecal coliform bacteria in the Providence and Seekonk Rivers; four of these stations were also sampled for enterococci bacteria. In the five days prior to sampling, 0.26” of precipitation was recorded at TF Green. Overall, bacteria counts were slightly lower than during the previous sampling event.… Read more: April 8, 2026

Nutrient samples were collected from seven river stations and seven bay stations on March 18th.  In the five days prior to sampling, 1.75” of precipitation were recorded at T.F. Green. Among the river stations sampled, the highest total nitrogen (TN), total dissolved nitrogen (TDN), and dissolved inorganic nitrogen (DIN) were observed at Blackstone River @… Read more: March 18, 2026

Nutrient samples were collected from nine river stations on March 4th.  In the five days prior to sampling, 0.72” of precipitation were recorded at T.F. Green. Among the river stations sampled, the highest total nitrogen (TN), total dissolved nitrogen (TDN), and dissolved inorganic nitrogen (DIN) were observed at Ten Mile River @ Roger Williams Ave.… Read more: March 4, 2026

In celebration of Rhode Island Clean Water Week, the Narragansett Bay Commission (NBC) will offer free public tours of its award-winning Field’s Point Wastewater Treatment Facility in Providence on Saturday, April 18 from 10:00 AM to 1:00 PM. The tours will include a look at the region’s most sophisticated water quality lab, “touch-a-truck” and “touch-a-boat”… Read more: Clean Water Open House: Follow the Flush!

On March 25th, 2026 twenty stations were sampled for fecal coliform bacteria in the Providence and Seekonk Rivers; five of these stations were also sampled for enterococci bacteria. In the five days prior to sampling, 1.83 inches of precipitation was recorded at TF Green. This was the first sampling event of 2026. Fecal coliform counts… Read more: March 25, 2026

After months of waiting and prepping, there’s nothing quite like the feeling of gliding over the water as the world wakes up around you. Our mission this trip? To gather essential nutrients and monitor the health of our water ways. As we cruised along, we collected surface and bottom nutrient samples and watch the surface… Read more: First Boat Trip of the Year: Chasing nutrients on the water

Contest deadline is Friday, May 1! The Narragansett Bay Commission (NBC) is proud to sponsor its 33rd annual student poster contest. The theme of this year’s contest is Water’s Journey Through Time. The NBC would like students to artistically showcase how water has changed or will change over time. Students may want to research what the… Read more: Enter NBC’s 2027 Student Poster Contest Today!

Nutrient samples were collected from six river stations on February 18th.  In the five days prior to sampling, 0.25” of precipitation were recorded at T.F. Green. Among the river stations sampled, the highest total nitrogen (TN), total dissolved nitrogen (TDN), and dissolved inorganic nitrogen (DIN) were observed at Blackstone River @ Slater Mill (TN =… Read more: February 18, 2026

Nutrient samples were collected from nine river stations on February 4th.  In the five days prior to sampling, 0.0” of precipitation were recorded at T.F. Green. Among the river stations sampled, the highest total nitrogen (TN), total dissolved nitrogen (TDN), and dissolved inorganic nitrogen (DIN) were observed at Ten Mile River @ Roger Williams Ave.… Read more: February 4, 2026

Nutrient samples were collected from seven river stations on January 21st.  In the five days prior to sampling, 0.7” of precipitation were recorded at T.F. Green. Among the river stations sampled, the highest total nitrogen (TN), total dissolved nitrogen (TDN), and dissolved inorganic nitrogen (DIN) were observed at Pawtuxet River @ Broad St. (TN =… Read more: January 21, 2026

Nutrient samples were collected from thirteen river stations on January 7th.  In the five days prior to sampling, 0.11” of precipitation were recorded at T.F. Green. Among the river stations sampled, the highest total nitrogen (TN), total dissolved nitrogen (TDN), and dissolved inorganic nitrogen (DIN) were observed at Pawtuxet River @ Broad St. (TN =… Read more: January 7, 2026

The Narragansett Bay Commission (NBC) is proud to announce the thirty-first annual NBC Environmental Merit Awards program. Through this program the NBC offers three types of Environmental Merit Awards: the NBC Pollution Prevention Award which honors (a) companies that have demonstrated efforts that go above and beyond NBC regulatory compliance requirements using pollution prevention techniques/technologies… Read more: Apply Today for an Environmental Merit Award

Nutrient samples were collected from seven river stations on December 24th.  In the five days prior to sampling, 0.77” of precipitation were recorded at T.F. Green. Among the river stations sampled, the highest total nitrogen (TN), total dissolved nitrogen (TDN), and dissolved inorganic nitrogen (DIN) were observed at Pawtuxet River @ Broad St. TN =… Read more: December 24, 2025

Nutrient samples were collected from thirteen river stations on December 10th.  In the five days prior to sampling, 0.07” of precipitation were recorded at T.F. Green. Among the river stations sampled, the highest total nitrogen (TN), total dissolved nitrogen (TDN), and dissolved inorganic nitrogen (DIN) were observed at Ten Mile River @ Central Ave. (TN… Read more: December 10, 2025