News

The Narragansett Bay Commission (NBC) is offering grants ranging from $250 up to $1,000 for local Earth Day River and Lake Cleanups, restoration or beautification projects for areas located within the NBC service area or along NBC receiving waters. The goal of the NBC 2025 Earth Day River Cleanup Grant Program is to clean up… Read more: NBC Announces 2025 Chairman’s River Restoration Earth Day Clean Up Grants

On November 20th, 2024, 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, no precipitation was recorded at TF Green. Overall, bacteria counts in both the Providence and Seekonk Rivers were lower compared… Read more: November 20, 2024

​The Data Stream deployed on a chilly but otherwise beautiful November day.   The team retrieved the Bullock’s Reach Sondes for the final time in the 2024 season.  The buoy is scheduled to be removed from the water for the winter in early December.  The picture below was taken while on route.  In the distant background, accentuated by a rainbow,… Read more: November 18, 2024

​Surface chlorophyll data were collected on November 7, 2024, while the R/V Monitor was underway collecting nutrient samples in the Providence and Seekonk River estuary. The average chlorophyll concentrations were categorized as good in all areas surveyed. Overall, chlorophyll ranged from 0.53 µg/L to 17.57 µg/L with an average of 2.89 µg/L. The chlorophyll concentrations… Read more: November 7, 2024

Phytoplankton samples were collected on October 30, 2024 at Bullock’s Reach and analyzed in the laboratory shortly after collection. Weather conditions and Sonde data were not recorded on this day. The qualitative tow net sample had a moderate filtration time. The filtrate was slightly cloudy with some golden brown particulates. The analysis of the quantitative… Read more: October 30, 2024

​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… Read more: October 30, 2024

​The crew of the Data Stream were performing routine bacteria sampling when they observed two bald eagles flying high in the sky above the Seekonk River near Phillipsdale Landing in East Providence.

​Nutrient samples were collected from seven river stations and seven bay stations on September 4th. All bay stations were sampled at the surface and bottom. In the five days prior to sampling, there was trace precipitation recorded at T.F. Green.  Among the river stations sampled, the highest total nitrogen (TN) and total dissolved nitrogen (TDN)… Read more: September 4, 2024

Water column profiles were conducted at seven locations in the Providence and Seekonk River estuaries on August 7, 2024 using a Seabird Electronics profiler. In the five days leading up to the survey, 0.95 inches of precipitation were recorded at T.F. Green. Water column stratification at the sites varied from weakly stratified at Pawtuxet Cove… Read more: August 7, 2024

​Phillipsdale Landing Overall, water quality at Phillipsdale Landing was fair to poor this week. Weather conditions included sporadic rain events, with 1.16 inches of precipitation recorded at T.F. Green. The Blackstone River flow fluctuate through the week in response to rain, rising above the 19-year daily median mid-way through the week. Surface salinity averaged 17.8… Read more: July 29-August 4, 2024

The Data Stream had an eventful day while out in the upper bay conducting routine bay bacteria monitoring activities.   A 12-foot Jon Boat appeared to be in distress, as the two youths onboard could not get their motor started. The wind and the current were pushing the boat towards a concrete hurricane barrier.  The Data… Read more: June 17, 2024

Surface chlorophyll data were collected on June 12, 2024 while the R/V Monitor was underway collecting nutrient samples in the Providence and Seekonk River estuaries. The average chlorophyll concentrations were categorized as good in the Pawtuxet River, poor in the Northern Providence River Channel, and as fair in all other areas. Overall, chlorophyll ranged from… Read more: June 12, 2024

​The Data Stream had some visitors while doing routine sonde swaps at Bullocks Reach.  Below is a picture taken by Tyler, an Environmental Monitoring Supervisor.  Tyler identified the birds as Common Terns.  These birds are seen often hanging around the Bullocks Reach buoy eating fish.

Today a new MET Sensor Assembly was installed on the recently deployed Bullocks Reach Buoy.  The assembly includes a weather station that can monitor wind speed, humidity, air pressure, and temperature.   The buoy was deployed on May 14th and staff have been diligently working to get the buoy up and running for the 2024 Fixed… Read more: May 20, 2024

Phytoplankton samples were collected on May 1, 2024 at Bullock Reach and analyzed in the laboratory shortly after collection. It was a cold and breeze day on Narragansett Bay with cloudy conditions. The qualitative tow net sample had a long filtration time, and the filtrate was a reddish brown and slightly cloudy. The analysis of the… Read more: May 1, 2024

​Phillipsdale Landing Overall, water quality at Phillipsdale Landing was good this week. Weather conditions were dry, with only 0.05 inches on April 30th, recorded at T.F. Green. The Blackstone River flow declined this week, remaining below the 19-year daily median for the majority of the week. Surface salinity averaged 4.1 ppt and ranged from 1.2… Read more: April 22 – 28, 2024

On April 24th, 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, precipitation totaled 0.28 inches as recorded at TF Green. Overall, bacteria counts were lower in both the Seekonk and Providence Rivers… Read more: April 24, 2024

​Phytoplankton samples were collected on March 20, 2024 at Bullock Reach and analyzed in the laboratory shortly after collection. It was partly sunny, breeze and brisk on Narragansett Bay. The qualitative tow net sample had a long filtration time, and the filtrate was a dark brown color. Some sediment and jellyfish were found in the sample. … Read more: March 17-23, 2024

Due to winter temperatures and weather conditions, boating activities were temporarily halted during the months of December 2023, January 2024, and February 2024. The safety of the crew as well as the boat are of the utmost concern at NBC.  Whether it’s slipping on an icy dock or slipping on the boat decking, we don’t… Read more: March 3 – 9, 2024

Water clarity was measured at eight locations in the Providence River and Seekonk River estuaries on December 13th, 2023. Rainfall totaling 2.29 inches was recorded at TF Green in the five days prior to the survey. Secchi depth averaged 1.3 meters, compared to 4.5 meters on the previous survey (November 30th). The lowest clarity this… Read more: December 10-16, 2023

On the morning of December 4th, the Phillipsdale Landing sondes were successfully removed for the 2023 season! For the one day of data available this week, water quality remained good, with similar conditions to last week. The sondes at Bullock Reach were retrieved on November 14th for the 2023 season.

Phillipsdale Landing Overall, water quality was good at Phillipsdale Landing this week. There were 0.74 inches of precipitation recorded at T.F. Green this week, and Blackstone flows continued to be higher than normal for this time of year. Surface salinity averaged 8.0 ppt and ranged from 3.2 ppt to 20.4 ppt. Bottom salinity averaged 19.8… Read more: November 26 – December 2, 2023

Phillipsdale Landing Overall, water quality was good at Phillipsdale Landing this week. There were 1.82 inches of precipitation recorded at T.F. Green this week, 1.71 of which occurred on 11/22. Blackstone flows were higher than historical averages all week, but particularly following the 11/22 rain event. Surface salinity averaged 8.8 ppt and ranged from 2.9 ppt… Read more: November 19-25, 2023

​On November 21, 2023, 15 stations were sampled for fecal coliform bacteria in the Providence and Seekonk Rivers; 3 of these stations were also sampled for enterococci bacteria. There was a smaller set of locations sampled than normal due to cold weather conditions and time constraints. In the five days prior to sampling, precipitation totaled… Read more: November 19-25, 2023

​Phillipsdale Landing Overall, water quality was good at Phillipsdale Landing this week. There were 0.16 inches of precipitation recorded at T.F. Green this week and Blackstone River flow was slightly higher than normal for this time of year. Surface salinity averaged 13.7 ppt and ranged from 3.7 ppt to 22.6 ppt. Bottom salinity averaged 22.9… Read more: November 12-18, 2023

Phillipsdale Landing Overall, water quality was good at Phillipsdale Landing this week. Sondes were swapped this week on the morning of November 7th. There were 0.18 inches of precipitation recorded at T.F. Green this week. Blackstone River flow was higher than normal for this time of year. Surface salinity averaged 5.9 ppt and ranged from… Read more: November 5-11, 2023

Phillipsdale Landing Overall, water quality was good at Phillipsdale Landing this week. There were 1.14 inches of precipitation recorded at T.F. Green this week, mostly from rain events on the 29th and 30th. Blackstone River flow was higher than normal for this time of year. Surface salinity averaged 8.7 ppt and ranged from 2.0 ppt… Read more: October 29-November 5, 2023

The R/V Monitor has been retired since the last blog update for the week of February 19-25, 2023.  However, the Narragansett Bay Commission is excited to announce its new monitoring vessel, Data Stream.  The Data Stream is a brand new 2023 Parker 23290 SL: Sport cabin boat.  The Data Stream is equipped with state-of-the-art electronics,… Read more: October 29-November 4, 2023

​Phillipsdale Landing The Phillipsdale Landing sondes have been deployed for the season since May 9th, 2023 utilizing a new setup allowing staff access to the equipment from the boat instead of standing on the dock. During the month of October, sondes were changed out for routine maintenance on October 10th and 24th.  Surface DO remained above… Read more: October 2023

​Surface chlorophyll data were collected on October 25, 2023 while the R/V Monitor was underway collecting nutrient samples in the Providence and Seekonk River estuaries.  The average chlorophyll concentrations were categorized Good in the areas surveyed. Overall, chlorophyll ranged from 0.91 µg/L to 4.06 µg/L with an average of 1.73 µg/L. The chlorophyll concentrations from… Read more: October 22-28, 2023

Surface chlorophyll data were collected on October 18, 2023 while the R/V Monitor was underway collecting nutrient samples in the Providence and Seekonk River estuaries.  The average chlorophyll concentrations were categorized Good in the areas surveyed. Overall, chlorophyll ranged from 0.99 µg/L to 34.57 µg/L with an average of 5.52µg/L. The chlorophyll concentrations from this… Read more: October 15-21, 2023

Phytoplankton samples were collected on October 18, 2023 at Bullock’s Reach and analyzed in the laboratory shortly after collection. It was a cloudy and chilly day on Narragansett Bay. The water was noticeably clear to almost 5 meters depth. Sonde data revealed the surface water temperature was 15.8°C, salinity was 24.9 psu, and chlorophyll a was… Read more: October 15-21, 2023

On October 11, 2023, 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, precipitation totaled 0.36 inches as recorded at TF Green.  Overall, bacteria levels were lower in both the Seekonk and Providence… Read more: October 8-14, 2023

Surface chlorophyll data were collected on October 11th, 2023 while the R/V Monitor was underway collecting nutrient samples in the Providence and Seekonk River estuaries. The average chlorophyll concentrations were categorized as good in all areas except Edgewood Shoals which was fair. Overall, chlorophyll ranged from 129.37 µg/L to 1.02 µg/L with an average of… Read more: October 8-14, 2023

A phytoplankton sample was collected on October 4, 2023 at Bullock’s Reach and analyzed in the laboratory shortly after collection. The plankton tow-net sample was not collected this week, only the whole-water quantitative sample. Sonde data revealed the surface water temperature was 18.50°C, salinity was 18.15 psu, and chlorophyll a was 4.23 ug/L.  The whole water… Read more: October 1-7, 2023

On September 27th, 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, precipitation totaled 2.77 inches as recorded at TF Green.  Overall, bacteria levels were lower in both the Seekonk and Providence Rivers… Read more: September 25-October 1, 2023

Surface chlorophyll data were collected on September 27, 2023 while the R/V Monitor was underway collecting nutrient samples in the Providence and Seekonk River estuaries.  The average chlorophyll concentrations were categorized Good in the areas surveyed. Overall, chlorophyll ranged from 1.15 µg/L to 4.50 µg/L with an average of 1.96 µg/L. The chlorophyll concentrations from… Read more: September 24-20, 2023

Phillipsdale Landing The Phillipsdale Landing sondes have been deployed for the season since May 9th, 2023 utilizing a new setup allowing staff access to the equipment from the boat instead of standing on the dock. During the month of September, sondes were changed out for routine maintenance on September 14th and 27th.  Surface DO remained… Read more: September 2023

​Surface chlorophyll data were collected on September 20, 2023 while the R/V Monitor was underway collecting nutrient samples in the Providence and Seekonk River estuaries. The average chlorophyll concentrations were categorized as Good in the areas surveyed. Overall, chlorophyll ranged from 0.52 µg/L to 12.89 µg/L with an average of 2.92 µg/L. The chlorophyll concentrations… Read more: September 17-23, 2023

Phytoplankton samples were collected on September 20, 2023 at Bullock Reach and analyzed in the laboratory shortly after collection. Sonde data revealed the surface water temperature was 19.3°C, salinity was 24.5 psu, and chlorophyll a was 12.2 ug/L. The plankton tow net filtrate was a light brown color and had a long filter time. High particulates and… Read more: September 17-23, 2023

On September 14th, twenty stations were sampled for fecal coliform bacteria in the Providence River and Seekonk River; five of these stations were also sampled for enterococci bacteria. In the five days prior to sampling, precipitation totaled 1.23 inches as recorded at TF Green.  Overall, bacteria counts were elevated this week. Fecal coliform counts were… Read more: September 11-17, 2023

​Surface chlorophyll data were collected on September 14, 2023 while the R/V Monitor was underway collecting nutrient samples in the Providence and Seekonk River estuaries. The average chlorophyll concentrations were categorized fair in the areas surveyed. Overall, chlorophyll ranged from 1.68 µg/L to 89.11 µg/L with an average of 9.02 µg/L. The chlorophyll concentrations from… Read more: September 10-16, 2023

​Surface chlorophyll data were collected on September 6, 2023 while the R/V Monitor was underway collecting nutrient samples in the Providence and Seekonk River estuaries. The average chlorophyll concentrations were categorized fair in the areas surveyed. Overall, chlorophyll ranged from 2.74 µg/L to 100.34 µg/L with an average of 13.59 µg/L. The chlorophyll concentrations from… Read more: September 3-9, 2023

Phytoplankton samples were collected on September 6, 2023 at Bullock Reach and analyzed in the laboratory shortly after collection. Sonde data revealed the surface water temperature was 23.4°C, salinity was 24.5 psu, and chlorophyll a was 12.2 ug/L. The plankton tow net sample was filterable with a 20 micron mesh. The filtrate was a light brown greenish color and… Read more: September 3-9, 2023

On August 31st, six stations were sampled for fecal coliform bacteria in the Providence River; one of these stations was also sampled for enterococci bacteria. There was a smaller set of stations sampled than normal due to weather conditions. Precipitation in the five days prior to sampling totaled 0.14 inches as recorded at TF Green.  Overall,… Read more: August 28-September3, 2023

Surface chlorophyll data were collected on August 29, 2023 while the R/V Monitor was underway collecting nutrient samples in the Edgewood Shoals, Pawtuxet River and Southern Providence River areas (chlorophyll data were not collected for the Seekonk and Northern Providence River Channel areas due to data logging issues). The average chlorophyll concentrations were categorized fair… Read more: August 27-September 2, 2023

​Phillipsdale Landing The Phillipsdale Landing sondes have been deployed for the season since May 9th, 2023 utilizing a new setup allowing staff access to the equipment from the boat instead of standing on the dock. During the month of August, sondes were changed out for routine maintenance on August 1st, 16th, and 29th.  Surface DO… Read more: August 2023

​Surface chlorophyll data were collected on August 22, 2023 while the R/V Monitor was underway collecting nutrient samples in the Providence and Seekonk River estuaries. The average chlorophyll concentrations were categorized as good in the Seekonk River, Northern Providence River Channel, and Edgewood Shoals and as fair in all other areas. Overall, chlorophyll ranged from… Read more: August 20-26, 2023

Phytoplankton samples were collected on August 23, 2023 at Bullock Reach and analyzed in the laboratory shortly after collection. Sonde data revealed the surface water temperature was 21.0°C and salinity was 26.5 psu. The plankton tow net sample was filterable with a 20 micron mesh. The filtrate was a light brown color and had a quick filter… Read more: August 20-26, 2023

​Water clarity was measured at five locations in the Providence River and Seekonk River estuaries on August 16. Rainfall totaling 0.61 inches was recorded at TF Green in the five days prior to the survey. Secchi depth averaged 2.8 meters, compared to 1.8 meters on the previous survey (August 9). The lowest clarity this week… Read more: August 13-19, 2023

On August 16, twenty stations were sampled for fecal coliform bacteria in the Providence and Seekonk Rivers.  Five of these stations were also sampled for enterococci bacteria. Precipitation in the five days prior to sampling totaled 0.61 inches as recorded at TF Green. The geometric mean of fecal coliform results for all sites was 149… Read more: August 13-19, 2023

Surface chlorophyll data were collected on August 16, 2023 while the R/V Monitor was underway collecting nutrient samples in the Providence and Seekonk River estuaries. The average chlorophyll concentrations were categorized as good in the Seekonk River and Northern Providence River Channel and as fair in all others. Overall, chlorophyll ranged from 1.46 to 17.84… Read more: August 13-19, 2023

Water clarity was measured at seven locations in the Providence River and Seekonk River estuaries on August 9. Rainfall totaling 0.48 inches was recorded at TF Green in the five days prior to the survey. Secchi depth averaged 1.8 meters, compared to 2.3 meters on the previous survey (August 2). The lowest clarity this week… Read more: August 6-12, 2023

Surface chlorophyll data were collected on August 9, 2023 while the R/V Monitor was underway collecting nutrient samples in the Providence and Seekonk River estuaries. The average chlorophyll concentrations were categorized as good in the Northern Providence River Channel, Edgewood Shoals, and Pawtuxet River Area and as fair in all other areas. Overall, chlorophyll ranged… Read more: August 6-12, 2023

Phytoplankton samples were collected on August 9, 2023 at Bullock’s Reach and analyzed in the laboratory shortly after collection. Sonde data revealed the surface water temperature was 23.4°C, salinity was 24.1 psu, and chlorophyll a was 7.2 ug/L.  The plankton tow net sample was filterable with a 20 micron mesh. The filtrate was a light brown greenish color… Read more: August 6-12, 2023

​Water clarity was measured at six locations in the Providence River and Seekonk River estuaries on August 2. Rainfall totaling 0.66 inches was recorded at TF Green in the five days prior to the survey, all of which occurred on July 29. Secchi depth averaged 2.3 meters, compared to 1.1 meters on the previous survey… Read more: July 30-August 5, 2023

On August 2, twenty stations were sampled for fecal coliform bacteria in the Providence and Seekonk Rivers.  Five of these stations were also sampled for enterococci bacteria. Precipitation in the five days prior to sampling totaled 0.66 inches as recorded at TF Green. The geometric mean of fecal coliform results for all sites was 41… Read more: July 30-August 5, 2023

​Surface chlorophyll data were collected on August 2, 2023 while the R/V Monitor was underway collecting nutrient samples in the Providence and Seekonk River estuaries. The average chlorophyll concentrations were categorized as good in the Seekonk River and Northern Providence River Channel and as fair in all others. Overall, chlorophyll ranged from 1.49 to 18.92… Read more: July 30-August 5, 2023

Phillipsdale Landing The Phillipsdale Landing sondes have been deployed since May 9th, 2023 utilizing a new setup allowing staff access to the equipment from the boat instead of standing on the dock. Sondes were changed out for routine maintenance on July 6th and July 18th. July was a wet month, with 8.37 inches of precipitation… Read more: July 2023

​Water clarity was measured at eight locations in the Providence River and Seekonk River estuaries on July 27. Rainfall totaling 0.47 inches was recorded at TF Green in the five days prior to the survey. Secchi depth averaged 1.1 meters, compared to 1.0 meters on the previous survey (July 12). The lowest clarity this week… Read more: July 23-29, 2023

​Surface chlorophyll data were collected on July 26, 2023 while the R/V Monitor was underway collecting nutrient samples in the Providence and Seekonk River estuaries. The average chlorophyll concentrations were categorized as good in the Seekonk River and as fair in all other areas. Overall, chlorophyll ranged from 2.18 to 29.09 µg/L with an average… Read more: July 23-29, 2023

​Phytoplankton samples were collected on July 26, 2023 at Bullock Reach and analyzed in the laboratory shortly after collection. Sondes data revealed the surface water temperature was 25.586⁰C, salinity was 16.22psu, and chlorophyll a was 19.77 ug/L. It was a hot and humid day with calm conditions on Narragansett Bay. The plankton tow net sample… Read more: July 23-29, 2023

Nutrient samples were collected from 14 river stations and 8 bay stations on July 26th. Edgewood Shoal was sampled at the surface and bottom; all other bay stations were sampled at the surface only. In the five days prior to sampling, there were 0.47 inches of rainfall recorded at T.F. Green. Among the river stations… Read more: July 23-29, 2023

Water column profiles were conducted at eight locations in the Providence and Seekonk River estuaries on July 26, 2023 using a Seabird Electronics profiler. In the three days leading up to the survey, there were 0.10 inches of precipitation recorded at T.F. Green. Moderate density stratification was observed at Edgewood Shoal; all other sites still… Read more: July 23-29, 2023

Nutrient samples were collected from 14 river stations and 8 bay stations on July 26th. Edgewood Shoal was sampled at the surface and bottom; all other bay stations were sampled at the surface only. In the five days prior to sampling, there were 0.47 inches of rainfall recorded at T.F. Green. Among the river stations… Read more: July 23-29, 2023

Water column profiles were conducted at eight locations in the Providence and Seekonk River estuaries on July 26, 2023 using a Seabird Electronics profiler. In the three days leading up to the survey, there were 0.10 inches of precipitation recorded at T.F. Green. Moderate density stratification was observed at Edgewood Shoal; all other sites still… Read more: July 23-29, 2023

On July 19, twenty stations were sampled for fecal coliform bacteria in the Providence and Seekonk Rivers.  Five of these stations were also sampled for enterococci bacteria. Precipitation in the five days prior to sampling totaled 3.96 inches as recorded at TF Green, most of which occurred on July 16. The geometric mean of fecal… Read more: July 16-22, 2023

​Surface chlorophyll data were collected on July 19, 2023 while the R/V Monitor was underway collecting bacteria samples in the Providence and Seekonk River estuaries. The average chlorophyll concentrations were categorized as good in the Seekonk River and Northern Providence River Channel and as fair in the Pawtuxet River, Edgewood Shoals, and Southern Providence River… Read more: July 16-22, 2023

Water column profiles were conducted at seven locations in the Providence and Seekonk River estuaries on July 19, 2023 using a Seabird Electronics profiler. In the three days leading up to the survey, there were 3.35 inches of precipitation recorded at T.F. Green. Strong density stratification was observed at all sites surveyed this week. Dissolved… Read more: July 16-22, 2023

​Water clarity was measured at six locations in the Providence River and Seekonk River estuaries on July 12. Rainfall totaling 1.91 inches was recorded at TF Green in the five days prior to the survey. Secchi depth averaged 1.0 meters, compared to 1.1 meters on the previous survey (July 5). The lowest clarity this week… Read more: July 9-15, 2023

Phytoplankton samples were collected on July 12, 2023 at Bullock Reach and analyzed in the laboratory shortly after collection. Sondes data revealed the surface water temperature was 25.529⁰C, salinity was 21.40 psu, and chlorophyll a was 11.25 ug/L. Small sea jellies were observed today on Narragansett Bay. The plankton tow net sample was filterable with… Read more: July 9-15, 2023

​Surface chlorophyll data were collected on July 12, 2023 while the R/V Monitor was underway collecting nutrient samples in the Providence and Seekonk River estuaries. The average chlorophyll concentrations were categorized as good in the Seekonk River, Northern Providence River Channel, and Pawtuxet River areas and as fair in the Edgewood Shoals and Southern Providence… Read more: July 9-15, 2023

Nutrient samples were collected from seven river stations and seven bay stations on July 12th. All bay stations were sampled at the surface and bottom. In the five days prior to sampling, there were 1.91 inches of rainfall recorded at T.F. Green, all from a rain event on July 10th.  Among the river stations sampled,… Read more: July 9-15, 2023

Water column profiles were conducted at seven locations in the Providence and Seekonk River estuaries on July 12, 2023 using a Seabird Electronics profiler. In the three days leading up to the survey, there were 1.91 inches of precipitation recorded at T.F. Green. Strong density stratification was observed at all sites surveyed this week. Dissolved… Read more: July 9-15, 2023

​Water clarity was measured at eight locations in the Providence River and Seekonk River estuaries on July 5. Rainfall totaling 1.25 inches was recorded at TF Green in the five days prior to the survey. Secchi depth averaged 1.1 meters, compared to 1.4 meters on the previous survey (June 28). The lowest clarity this week… Read more: July 2-8, 2023

Surface chlorophyll data were collected on July 5, 2023 while the R/V Monitor was underway collecting bacteria samples in the Providence and Seekonk River estuaries. The average chlorophyll concentrations were categorized as good in the Seekonk River, Northern Providence River Channel, and Pawtuxet River areas and as fair in the Edgewood Shoals and Southern Providence… Read more: July 2-8, 2023

On July 5, twenty stations were sampled for fecal coliform bacteria in the Providence and Seekonk Rivers.  Five of these stations were also sampled for enterococci bacteria. Precipitation in the five days prior to sampling totaled 1.25 inches as recorded at TF Green, most of which occurred on July 4. The geometric mean of fecal… Read more: July 2-8, 2023

Water column profiles were conducted at eight locations in the Providence and Seekonk River estuaries on July 5, 2023 using a Seabird Electronics profiler. In the three days leading up to the survey, there were 1.25 inches of precipitation recorded at T.F. Green. Strong density stratification was observed at all sites surveyed this week. Dissolved… Read more: July 2-8, 2023

​Water clarity was measured at eight locations in the Providence River and Seekonk River estuaries on June 28. Rainfall totaling 1.51 inches was recorded at TF Green in the five days prior to the survey, with 0.44 inches occurring on the day of sampling. Secchi depth averaged 1.4 meters, compared to 1.6 meters on the… Read more: June 25-July 1, 2023

​Surface chlorophyll data were collected on June 28, 2023 while the R/V Monitor was underway collecting nutrient samples in the Providence and Seekonk River estuaries. The average chlorophyll concentrations were categorized as poor in the Seekonk River and Northern Providence River Channel, fair in the Edgewood Shoals area, and good in the Pawtuxet River and… Read more: June 25-July 1, 2023

Phytoplankton samples were collected on June 28, 2023 at Bullock Reach and analyzed in the laboratory shortly after collection. Sondes data revealed the surface water temperature was 22.945⁰C, salinity was 23.18 psu, and chlorophyll a was 4.71 ug/L. The plankton tow net sample was filterable with a 20 micron mesh. The filtrate was a green- brown color… Read more: June 25-July 1, 2023

Nutrient samples were collected from 14 river stations and nine bay stations on June 28th. Edgewood Shoal was sampled at the surface and bottom; all other bay stations were sampled at the surface only. In the five days prior to sampling and the morning of, there were 1.51 inches of rainfall recorded at T.F. Green. … Read more: July 25-July 1, 2023

Water column profiles were conducted at eight locations in the Providence and Seekonk River estuaries on June 28, 2023 using a Seabird Electronics profiler. In the three days leading up to the survey and the morning of, there were 0.92 inches of precipitation recorded at T.F. Green. Strong density stratification was observed at most sites… Read more: June 25-July 1, 2023

Phillipsdale Landing The Phillipsdale Landing sondes have been deployed since May 9th, 2023 utilizing a new setup allowing staff access to the equipment from the boat instead of standing on the dock. Sondes were changed out for routine maintenance on June 6th and June 20th.  June was relatively wet, with 3.1 inches of precipitation recorded… Read more: June 2023

On June 21, twenty stations were sampled for fecal coliform bacteria in the Providence and Seekonk Rivers.  Five of these stations were also sampled for enterococci bacteria. Precipitation in the five days prior to sampling totaled 1.30 inches as recorded at TF Green. The geometric mean of fecal coliform results for all sites was 31 MPN/100 mL… Read more: June 18-24, 2023

​Water clarity was measured at eight locations in the Providence River and Seekonk River estuaries on June 21. Rainfall totaling 1.30 inches was recorded at TF Green in the five days prior to the survey, all of which occurred on June 17. Secchi depth averaged 1.6 meters, compared to 1.9 meters on the previous survey… Read more: June 18-24, 2023

Surface chlorophyll data were collected on June 21, 2023 while the R/V Monitor was underway collecting bacteria samples in the Providence and Seekonk River estuaries. Unfortunately, only limited data between Field’s Point and Conimicut Point were collected due to an instrument logging error. The average chlorophyll concentrations were categorized as fair in the Northern Providence… Read more: June 18-24, 2023

Water column profiles were conducted at eight locations in the Providence and Seekonk River estuaries on June 21, 2023 using a Seabird Electronics profiler. In the three days leading up to the survey, there was no precipitation recorded at T.F. Green. Density stratification was moderate to strong at the sites surveyed. Dissolved oxygen (DO) conditions… Read more: June 18-24, 2023

​Surface chlorophyll data were collected on June 14, 2023 while the R/V Monitor was underway collecting nutrient samples in the Providence and Seekonk River estuaries. The average chlorophyll concentrations were categorized as good in the Seekonk River, Upper Providence River Channel, and Pawtuxet River areas and as fair in the Edgewood Shoals and Southern Providence… Read more: June 11-17, 2023

Water clarity was measured at six locations in the Providence River and Seekonk River estuaries on June 14. There was 0.59 inches of precipitation recorded at TF Green in the five days prior to the survey. Secchi depth averaged 1.9 meters, compared to 2.5 meters on the previous survey (June 7). The lowest clarity this… Read more: June 11-17, 2023

Nutrient samples were collected from seven river stations and seven bay stations on June 14th. All bay stations were sampled at the surface and bottom. In the five days prior to sampling, there were 0.59 inches of rainfall recorded at T.F. Green.  Among the river stations sampled, the highest total nitrogen (TN), total dissolved nitrogen… Read more: June 11-17, 2023

Water column profiles were conducted at seven locations in the Providence and Seekonk River estuaries on June 14, 2023 using a Seabird Electronics profiler. In the three days leading up to the survey, there were 0.21 inches of precipitation recorded at T.F. Green. India Point Park exhibited strong density stratification and all other sites were… Read more: June 11-17, 2023

Surface chlorophyll data were collected on June 7, 2023 while the R/V Monitor was underway collecting bacteria samples in the Providence and Seekonk River estuaries. The average chlorophyll concentrations were categorized as good in all areas surveyed. Overall, chlorophyll ranged between 0.35 and 3.45 µg/L with an average of 1.90 µg/L. The chlorophyll concentrations from… Read more: June 4-10, 2023

​Water clarity was measured at six locations in the Providence River and Seekonk River estuaries on June 7. There was 0.14 inches of precipitation recorded at TF Green in the five days prior to the survey. Secchi depth averaged 2.5 meters, compared to 1.5 meters on the previous survey (May 31). The lowest clarity this… Read more: June 4-10, 2023

​On June 7, twenty stations were sampled for fecal coliform bacteria in the Providence and Seekonk Rivers.  Five of these stations were also sampled for enterococci bacteria. Precipitation in the five days prior to sampling totaled 0.14 inches as recorded at TF Green.​ The geometric mean of fecal coliform results for all sites was 17… Read more: June 4-10, 2023

Water column profiles were conducted at six locations in the Providence and Seekonk River estuaries on June 7, 2023 using a Seabird Electronics profiler. In the three days leading up to the survey, there were 0.12 inches of precipitation recorded at T.F. Green. Phillipsdale Landing exhibited moderate density stratification and all other sites were weakly… Read more: June 4-10, 2023

​Surface chlorophyll data were collected on May 31, 2023 while the R/V Monitor was underway collecting nutrient samples in the Providence and Seekonk River estuaries. The average chlorophyll concentrations were categorized as good in the Southern Providence River area and fair in all the other areas surveyed. Overall, chlorophyll ranged between 3.01 and 16.90 µg/L… Read more: May 28-June 3, 2023

Water clarity was measured at seven locations in the Providence River and Seekonk River estuaries on May 31. There was no precipitation recorded at TF Green in the five days prior to the survey. Secchi depth averaged 1.5 meters, compared to 1.3 meters on the previous survey (May 24). The lowest clarity this week (0.8… Read more: May 28-June 3, 2023

Phytoplankton samples were collected on May 31, 2023 at Bullock Reach and analyzed in the laboratory shortly after collection. Sondes data revealed the surface water temperature was 18.11⁰C, salinity was 21.04 psu, and chlorophyll a was 4.88 ug/L. The plankton tow net sample was filterable with a 20 micron mesh. The filtrate was a light… Read more: May 28-June 3, 2023

Nutrient samples were collected from 14 river stations and eight bay stations on May 31st. Edgewood Shoal was sampled at the surface and bottom; all other bay stations were sampled at the surface only. In the five days prior to sampling, there was no rainfall recorded at T.F. Green.  Among the river stations sampled, the highest… Read more: May 28-June 3, 2023