Phillipsdale Landing

The sondes were retrieved this week on December 9^th to finish up the 2024 season. Due to the Phillipsdale Landing sondes being removed, we only have data from the morning of December 9^th. The sonde removal occurred before the rain reported that day (0.37 inches recorded at TF Green). Blackstone River flows remained stable and below the 20-year median statistic for the morning. Salinity at the surface averaged 22.1 ppt and ranged from 16.9 ppt to 24.6 ppt. At the bottom, salinity averaged 25.3 ppt and ranged from 20.2 ppt to 26.8 ppt. Temperatures averaged 6.4°C at the surface and 6.9°C at the bottom. Surface temperatures ranged from 5.6°C to 6.8°C, while bottom temperatures ranged from 6.1°C to 7.1°C.

Dissolved oxygen (DO) at Phillipsdale Landing remained above the hypoxia threshold of 2.9 mg/L at all depths throughout the week. Surface DO averaged 9.6 mg/L and ranged 9.0-10.4 mg/L. Bottom water DO concentration averaged 9.0 mg/L and ranged from 8.7 mg/L to 10.1 mg/L. Chlorophyll readings increased since last week, averaging 10.9 µg/L at the surface and 6.7 µg/L at the bottom. Maximum chlorophyll at the surface reached 21.7 µg/L at 8:01 December 9^th. Please note that tidal fluctuations and Blackstone River flows greatly influence water column salinity, temperature, and DO at this location. Phillipsdale Landing sonde will be deployed again in the spring for the 2025 monitoring season.

Bullock Reach 

Bullock Reach sondes were removed on November 18^th and will be deployed again in the spring for the 2025 monitoring season.

Phillipsdale Landing

Overall, the water quality at Phillipsdale Landing was good this week. Weather conditions included sporadic rain events, with 0.62 inches of precipitation recorded at T.F. Green. The Blackstone River flow fluctuated through the week in response to rain but remained below the 20-year daily median throughout the week. Surface salinity averaged 21.4 ppt and ranged from 11.7 ppt to 26.4 ppt. At the bottom, salinity averaged 25.3 ppt and ranged from 12.4 ppt to 29.0 ppt. Temperatures decreased this week, averaging 7.2°C at the surface and ranging 3.7°C – 9.2°C. At the bottom, temperatures averaged 8.1°C and ranged 4.7°C – 9.5°C.

Dissolved oxygen (DO) at Phillipsdale Landing remained above the hypoxia threshold of 2.9 mg/L at all depths throughout the week. Surface DO averaged 9.6 mg/L and ranged 8.0-11.7 mg/L. Bottom water DO concentration averaged 8.7 mg/L and ranged from 7.5 mg/L to 10.9 mg/L. Chlorophyll readings increased from last week, averaging 6.3 µg/L at the surface and 5.8 µg/L at the bottom. Maximum chlorophyll at the surface reached 50.7 µg/L on the morning of December 8^th. Please note that tidal fluctuations and Blackstone River flows greatly influence water column salinity, temperature, and DO at this location. 

Bullock Reach 

Bullock Reach sondes were removed on November 18^th and will be deployed again in the spring for the 2025 monitoring season.

Phillipsdale Landing

Overall, the water quality at Phillipsdale Landing was good this week. Weather conditions included sporadic rain events, with 0.76 inches of precipitation recorded at T.F. Green. The Blackstone River flow fluctuated throughout the week in response to rain. Surface salinity averaged 18.9 ppt and ranged from 6.6 ppt to 25.6 ppt. At the bottom, salinity averaged 26.5 ppt and ranged from 14.5 ppt to 29.1 ppt. Temperatures continued to decrease this week, averaging 9.1°C at the surface and ranging 5.4°C – 10.3°C. At the bottom, temperatures averaged 10.1°C and ranged 8.6°C – 10.8°C.

Dissolved oxygen (DO) at Phillipsdale Landing remained above the hypoxia threshold (i.e., DO >2.9 mg/L) throughout the week. Surface DO averaged 8.5 mg/L and ranged 5.8-10.6 mg/L. Bottom water DO concentration averaged 7.5 mg/L and ranged from 6.4 mg/L to 8.9 mg/L. Chlorophyll readings increased from last week, averaging 2.5 µg/L at the surface and 2.3 µg/L at the bottom. Maximum chlorophyll at the surface reached 25.4 µg/L on the afternoon of December 1^st. Please note that tidal fluctuations and Blackstone River flows greatly influence water column salinity, temperature, and DO at this location. 

Bullock Reach 

Bullock Reach sondes were removed on November 18^th and will be deployed again in the spring for the 2025 monitoring season.

Phillipsdale Landing

Overall, the water quality at Phillipsdale Landing was good this week. Weather conditions included sporadic rain events, with 1.71 inches of precipitation recorded at T.F. Green. The Blackstone River flow fluctuated through the week in response to rain, rising above the 21-year daily median at the end of the week. Surface salinity averaged 20.1 ppt and ranged from 7.1 ppt to 27.3 ppt. At the bottom, salinity averaged 25.2 ppt and ranged from 8.9 ppt to 28.7 ppt. Temperatures decreased this week, averaging 10.3°C at the surface and ranging 7.2°C – 11.8°C. At the bottom, temperatures averaged 10.8°C and ranged 8.1°C – 11.7°C.

Dissolved oxygen (DO) at Phillipsdale Landing remained above the hypoxia threshold (i.e., DO >2.9 mg/L) throughout the week. Surface DO averaged 10.3 mg/L and ranged from 7.2 mg/L to 11.8 mg/L. Bottom DO concentrations averaged 10.8 mg/L and ranged from 8.1 mg/L to 11.7 mg/L. Chlorophyll readings remained stabilized from last week, averaging 1.39 µg/L at the surface and 1.1 µg/L at the bottom. Maximum chlorophyll at the surface reached 7.7 µg/L at midday of November 23^rd. Please note that tidal fluctuations and Blackstone River flows greatly influence water column salinity, temperature, and DO at this location. 

Bullock Reach

Sondes were removed this week on the morning of November 18^th. Due to the Bullock Reach sondes being removed, we only have data from the morning of November 18^th. Overall, the water quality was good at Bullock Reach this week. Salinity averaged 28.9 ppt, 29.9 ppt, and 30.5 ppt at the surface, middle, and bottom sondes, respectively. Surface salinity ranged 28.2 – 29.4 ppt, mid salinity ranged 29.3 – 30.5 ppt, and bottom salinity ranged 29.9 – 31.1 ppt. Surface temperature averaged 10.7°C and ranged from 10.5°C to 10.9°C. Mid temperatures averaged 10.8°C and ranged from 10.7°C to 10.9°C. Bottom temperatures averaged 10.8°C and ranged from 10.7°C to 11.0°C.

Dissolved oxygen (DO) at Phillipsdale Landing remained above the hypoxia threshold (i.e., DO >2.9 mg/L) throughout the week. Surface DO averaged 9.0 mg/L and ranged 8.9 – 9.2 mg/L. In the mid waters, DO averaged 8.9 mg/L and ranged 8.8 – 9.0 mg/L. At the bottom, DO averaged 8.7 mg/L and ranged 8.6 – 8.8 mg/L.  Chlorophyll readings were low throughout the week. Readings averaged 1.9 µg/L at the surface, 1.9 µg/L at mid-depth, and 2.6 µg/L at the bottom.  The maximum surface chlorophyll was 2.7 µg/L on the morning of November 18^th.

Phillipsdale Landing

Sondes were swapped this week on the morning of November 14^th.  Overall, the water quality at Phillipsdale Landing was good to fair this week. Weather conditions were dry this week, with only 0.09 inches of precipitation recorded at T.F. Green. The Blackstone River flow declined through the week, while remaining below the 21-year daily median. Surface salinity averaged 22.3 ppt and ranged from 11.7 ppt to 27.6 ppt. At the bottom, salinity averaged 25.8 ppt and ranged from 18.8 ppt to 28.8 ppt. Temperatures continued to decrease this week, averaging 11.6°C at the surface and ranging 9.2°C – 13.8°C. At the bottom, temperatures averaged 12.2°C and ranged 10.9°C – 14.0°C.

Dissolved oxygen (DO) at Phillipsdale Landing remained above the hypoxia threshold (i.e., DO >2.9 mg/L) throughout the week. Surface DO averaged 8.2 mg/L and ranged from 6.7 mg/L to 9.3 mg/L. Bottom DO concentrations averaged 7.7 mg/L and ranged from 6.0 mg/L to 9.2 mg/L. Chlorophyll readings decreased from last week, averaging 1.27 µg/L at the surface and 1.6 µg/L at the bottom. Maximum chlorophyll at the surface reached 8.48 µg/L on the morning of November 11^th. Please note that tidal fluctuations and Blackstone River flows greatly influence water column salinity, temperature, and DO at this location. 

Bullock Reach

Overall, the water quality was good to fair at Bullock Reach this week. Salinity averaged 28.7 ppt, 29.5 ppt, and 30.3 ppt at the surface, middle, and bottom sondes, respectively. Surface salinity ranged 27.4 – 29.6 ppt, mid salinity ranged 28.4 – 30.4 ppt, and bottom salinity ranged 28.8 – 31.1 ppt. Surface temperature averaged 11.6°C and ranged from 9.9°C to 13.9°C. Mid temperatures averaged 11.7°C and ranged from 10.4°C to 13.4°C. Bottom temperatures averaged 11.8°C and ranged from 10.5°C to 13.6°C.

Dissolved oxygen (DO) at Phillipsdale Landing remained above the hypoxia threshold (i.e., DO >2.9 mg/L) throughout the week. Surface DO averaged 8.9 mg/L and ranged 8.5 – 10.3 mg/L. In the mid waters, DO averaged 8.8 mg/L and ranged 8.3 – 9.4 mg/L. At the bottom, DO averaged 8.9 mg/L and ranged 8.0 – 9.0 mg/L.  Chlorophyll readings ranged from low to moderate throughout the week. Readings averaged 2.0 µg/L at the surface, 2.4 µg/L at mid-depth, and 3.1 µg/L at the bottom.  The maximum surface chlorophyll was 4.0 µg/L on the afternoon of November 11^th.

Phillipsdale Landing

Overall, the water quality at Phillipsdale Landing was good this week. Weather conditions were dry this week, with only 0.01 inches of precipitation recorded at T.F. Green. The Blackstone River flow remained stabilized throughout the week, remaining below the 21-year daily throughout the week. Surface salinity averaged 8.7 ppt and ranged from 6.43 ppt to 12.8 ppt. At the bottom, salinity averaged 7.1 ppt and ranged from 5.8 ppt to 11.0 ppt. Temperatures decreased this week, averaging 14.1°C at the surface and ranging 11.4°C – 16.6°C. At the bottom, temperatures averaged 14.6°C and ranged 12.9°C – 15.6°C.

Dissolved oxygen (DO) at Phillipsdale Landing remained above the hypoxia threshold (i.e., DO >2.9 mg/L) throughout the week. Surface DO averaged 8.7 mg/L and ranged from 6.43 mg/L to 12.77 mg/L. Bottom DO concentrations averaged 7.1 mg/L and ranged from 5.8 mg/L to 11.0 mg/L. Chlorophyll readings decreased from last week, averaging 9.6 µg/L at the surface and 6.9 µg/L at the bottom. Maximum chlorophyll at the surface reached 104.7 µg/L on the afternoon of November 6^th. Please note that tidal fluctuations and Blackstone River flows greatly influence water column salinity, temperature, and DO at this location. 

Bullock Reach

Sondes were swapped this week on the morning of November 5^th. Overall, water quality was good at Bullock Reach this week. Salinity averaged 28.6 ppt, 29.5 ppt, and 30.7 ppt at the surface, middle, and bottom sondes, respectively. Surface salinity ranged 27.2– 29.5 ppt, mid salinity ranged 28.3 – 30.9 ppt, and bottom salinity ranged 29.5 – 32.0 ppt. Surface temperature averaged 13.9°C and ranged from 12.3°C to 15.3°C. Mid temperatures averaged 14.0°C and ranged from 12.5°C to 15.1°C. Bottom temperatures averaged 14.0°C and ranged from 13.0°C to 14.6°C.

Dissolved oxygen (DO) at Phillipsdale Landing remained above the hypoxia threshold (i.e., DO >2.9 mg/L) throughout the week. Surface DO averaged 8.9 mg/L and ranged 8.2 – 10.5 mg/L. In the mid waters, DO averaged 8.7 mg/L and ranged 7.9 – 9.5 mg/L. At the bottom, DO averaged 8.2 mg/L and ranged 7.5 – 9.0 mg/L.  Chlorophyll readings ranged from low to elevated throughout the week.. Readings averaged 2.6 µg/L at the surface, 3.6 µg/L at mid-depth, and 4.2 µg/L at the bottom.  The maximum surface chlorophyll was 5.0 µg/L on the morning of November 11^th.

Phillipsdale Landing

Sondes were swapped this week on the morning of October 29^th.  Overall, water quality at Phillipsdale Landing was good to fair this week. Weather conditions were dry this week, with 0.03 inches of precipitation recorded at T.F. Green. The Blackstone River flow remained relatively stable through the week, remaining below the 22-year daily median. Surface salinity averaged 21.4 ppt and ranged from 11.2 ppt to 27.2 ppt. At the bottom, salinity averaged 25.8 ppt and ranged from 19.5 ppt to 29.6 ppt. Temperatures remained stabilized this week, averaging 15.1°C at the surface and ranging 12.0°C – 16.7°C. At the bottom, temperatures averaged 15.4°C and ranged 14.5°C – 16.2°C.

Dissolved oxygen (DO) at Phillipsdale Landing remained above the hypoxia threshold (i.e., DO >2.9 mg/L) throughout the week. Surface DO averaged 8.5 mg/L and ranged from 5.6 mg/L to 12.8 mg/L. Bottom DO concentrations averaged 6.8 mg/L and ranged from 4.4 mg/L to 10.9 mg/L. Chlorophyll readings remained stabilized from last week, averaging 14.0 µg/L at the surface and 8.1 µg/L at the bottom. Maximum chlorophyll at the surface reached 105.0 µg/L at midday on November 11^th. Please note that tidal fluctuations and Blackstone River flows greatly influence water column salinity, temperature, and DO at this location. 

Bullock Reach

Overall, the water quality was good at Bullock Reach this week. Salinity averaged 28.8 ppt, 29.8 ppt, and 31.2 ppt at the surface, middle, and bottom sondes, respectively. Surface salinity ranged 27.3 – 30.0 ppt, mid salinity ranged 28.1 – 31.1 ppt, and bottom salinity ranged 29.5 – 32.6 ppt. Surface temperature averaged 14.3°C and ranged from 13.0°C to 15.4°C. Mid temperatures averaged 14.4°C and ranged from 13.5°C to 15.3°C. Bottom temperatures averaged 14.5°C and ranged from 13.8°C to 15.6°C.

Dissolved oxygen (DO) at Phillipsdale Landing remained above the hypoxia threshold (i.e., DO >2.9 mg/L) throughout the week. Surface DO averaged 8.4 mg/L and ranged 7.6 – 9.7 mg/L. In the mid waters, DO averaged 8.3 mg/L and ranged 7.5 – 8.9 mg/L. At the bottom, DO averaged 7.9 mg/L and ranged 7.0 – 8.5 mg/L.  Chlorophyll readings ranged from low to moderate, with evidence of sporadic phytoplankton blooms occurring throughout the week. Readings averaged 3.2 µg/L at the surface, 3.8 µg/L at mid-depth, and 1.2 µg/L at the bottom.  The maximum surface chlorophyll was 11.3 µg/L on the afternoon of October 29^th.

Phillipsdale Landing

Overall, water quality at Phillipsdale Landing was good to fair this week. The weather was dry, with no precipitation recorded at T.F. Green. The Blackstone River flow had small fluctuations throughout the week but remained below the 22-year daily median. Surface salinity averaged 20.5 ppt and ranged from 11.1 ppt to 25.6 ppt. At the bottom, salinity averaged 25.8 ppt and ranged from 20.6 ppt to 29.7 ppt. Temperatures remained stabilized this week, averaging 15.9°C at the surface and ranging 13.0°C – 17.5°C. At the bottom, temperatures averaged 16.0°C and ranged 14.8°C – 17.3°C.

Dissolved oxygen (DO) at Phillipsdale Landing remained above the hypoxia threshold (i.e., DO >2.9 mg/L) throughout the week. Surface DO averaged 8.51 mg/L and ranged from 5.39 mg/L to 13.59 mg/L. Bottom DO concentrations averaged 6.6 mg/L and ranged from 4.4 mg/L to 10.1 mg/L. Chlorophyll readings decreased from last week, averaging 13.3 µg/L at the surface and 3.6 µg/L at the bottom. Maximum chlorophyll at the surface reached 123.5 µg/L on the morning of October 21^st. Please note that tidal fluctuations and Blackstone River flows greatly influence water column salinity, temperature, and DO at this location. 

Bullock Reach

Sondes were swapped this week on the morning of October 22^nd. Overall, water quality was good at Bullock Reach this week. Salinity averaged 28.4 ppt, 29.7 ppt, and 31.4 ppt at the surface, middle, and bottom sondes, respectively. Surface salinity ranged 27.3 – 29.7 ppt, mid salinity ranged 28.2 – 30.8 ppt, and bottom salinity ranged 29.8 – 32.5 ppt. Surface temperature averaged 15.4°C and ranged from 14.0°C to 16.5°C. Mid temperatures averaged 15.3°C and ranged from 14.4°C to 16.4°C. Bottom temperatures averaged 15.2°C and ranged from 14.7°C to 16.0°C.

DO at Bullock Reach remained above the hypoxia threshold (i.e., DO >2.9 mg/L) throughout the week.    Surface DO averaged 8.7 mg/L and ranged 7.8 – 10.3 mg/L. In the mid waters, DO averaged 8.4 mg/L and ranged 7.4 – 9.8 mg/L. At the bottom, DO averaged 7.8 mg/L and ranged 6.8 – 9.2mg/L.  Chlorophyll readings ranged from low to elevated, with evidence of moderate phytoplankton blooms occurring throughout the week. Readings averaged 4.7 µg/L at the surface, 5.6 µg/L at mid-depth, and 3.3 µg/L at the bottom.  The maximum surface chlorophyll was 15.3 µg/L on the afternoon of October 21^st.