Rowan Hanley

Nutrient samples were collected from ten river stations and eight bay stations on August 7th. 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 0.59 inches of precipitation recorded at T.F. Green. 

Among the river stations sampled, the highest total nitrogen (TN), total dissolved nitrogen (TDN), and dissolved inorganic nitrogen (DIN) concentrations were observed at Blackstone River @ Stateline (TN = 1,250 ppb, TDN = 1,80 ppb, DIN = 970 ppb). The lowest TN was observed at Runnins River @ River Rd (743 ppb), while the lowest TDN and DIN were observed at Palmer River @ Rt 6 (TDN = 360 ppb, DIN = 13 ppb, average of duplicates).

Among the bay stations sampled, the highest surface total nitrogen (TN), total dissolved nitrogen (TDN), and dissolved inorganic nitrogen (DIN) were observed at Pawtuxet Cove (TN = 1,110 ppb, TDN = 944 ppb, DIN = 683 ppb, average of duplicates). The lowest surface TN was at Conimicut Point (549 ppb), while the lowest surface TDN and DIN concentrations were observed at Bullock Reach Buoy (TDN = 322 ppb, DIN = 132 ppb).

The next scheduled sampling date is September 4, 2024.​

Nutrient samples were collected from seven river stations and seven bay stations on August 7th. All bay stations were sampled at the surface and bottom. In the five days prior to sampling and the morning of, there were 1.02 inches of precipitation recorded at T.F. Green. 

Among the river stations sampled, the highest total nitrogen (TN) and dissolved inorganic nitrogen (DIN) concentrations were observed at Blackstone River @ Bike Path Bridge (TN = 1,390 ppb, DIN = 1,160 ppb); the highest total dissolved nitrogen (TDN) was observed in one of the duplicate samples at Pawtuxet River @ Broad St (1,470 ppb). The lowest TN, TDN, and DIN were observed at Woonasquatucket River @ Manton Ave Bridge (TN = 514, TDN = 480 ppb, DIN = 232 ppb).

Among the bay stations sampled, the highest surface total nitrogen (TN), total dissolved nitrogen (TDN), and dissolved inorganic nitrogen (DIN) were observed at Pawtuxet Cove (TN = 1,190 ppb, TDN = 1,040 ppb, DIN = 790 ppb). The lowest surface TN, TDN, and DIN concentrations were observed at Conimicut Point (TN = 653 ppb, TDN = 403 ppb, DIN = 154 ppb).

The next scheduled sampling date is August 21, 2024.​

Nutrient samples were collected from eleven river stations and eight bay stations on July 24th. 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 0.06 inches of precipitation recorded at T.F. Green. 

Among the river stations sampled, the highest total nitrogen (TN), total dissolved nitrogen (TDN), and dissolved inorganic nitrogen (DIN) concentrations were observed at Ten Mile River @ Central Ave (TN = 1,940 ppb, TDN = 1,800 ppb, DIN = 1,650 ppb). The lowest TN was observed at Runnins River @ River Rd (742 ppb), while the lowest TDN and DIN were observed at Palmer River @ Rt 6 (TDN = 387 ppb, DIN = 78 ppb).

Among the bay stations sampled, the highest surface total nitrogen (TN), total dissolved nitrogen (TDN), and dissolved inorganic nitrogen (DIN) were observed at Pawtuxet Cove (TN = 1,300 ppb, TDN = 1,100 ppb, DIN = 840 ppb). The lowest surface TN was at India Point Park (600 ppb, average of duplicates), while the lowest surface TDN and DIN concentrations were observed at Conimicut Point (TDN = 280 ppb, DIN = 30 ppb).

The next scheduled sampling date is August 7, 2024.​

Nutrient samples were collected from seven river stations and seven bay stations on July 10th. All bay stations were sampled at the surface and bottom. In the five days prior to sampling, there was no precipitation recorded at T.F. Green. 

Among the river stations sampled, the highest total nitrogen (TN), total dissolved nitrogen (TDN), and dissolved inorganic nitrogen (DIN) concentrations were observed at Pawtuxet River @ Broad St (TN = 1,350 ppb, TDN = 1,340 ppb, DIN = 995 ppb). The lowest TN, TDN, and DIN were observed at Blackstone River @ Slater Mill (TN = 873 ppb, TDN = 794 ppb, DIN = 568 ppb).

Among the bay stations sampled, the highest surface total nitrogen (TN) concentration was observed at Phillipsdale Landing (1,240 ppb); the highest total dissolved nitrogen (TDN) and dissolved inorganic nitrogen (DIN) were at Pawtuxet Cove (TDN = 1,000 ppb, DIN = 718 ppb, average of duplicates). The lowest surface TN and TDN were at Conimicut Point (TN = 511 ppb, TDN = 261 ppb), while the lowest surface DIN concentrations were observed at Edgewood Yacht Club, Pomham Rocks, and India Point Park (13 ppb).

The next scheduled sampling date is July 24, 2024.​

​Nutrient samples were collected from twelve river stations on June 26th. In the five days prior to sampling, there were 1.44 inches of precipitation recorded at T.F. Green. 

Among the river stations sampled, the highest total nitrogen (TN), total dissolved nitrogen (TDN), and dissolved inorganic nitrogen (DIN) concentrations were observed at Ten Mile River @ Central Ave. (TN = 1,335 ppb, TDN = 1,375 ppb, DIN = 1,109 ppb, all averaged with duplicates). The lowest TN and TDN were observed at Runnins River @ River Road (TN = 588 ppb, TDN = 585 ppb), while the lowest DIN was at Palmer River @ Rt. 6. (DIN = 241 ppb).

The next scheduled sampling date is July 10, 2024.

​Nutrient samples were collected from seven river stations and seven bay stations on June 12th. In the five days prior to sampling, there were 0.21 inches of precipitation recorded at T.F. Green. 

Among the river stations sampled, the highest total nitrogen (TN), total dissolved nitrogen (TDN), and dissolved inorganic nitrogen (DIN) concentrations were observed at Pawtuxet River @ Broad Street (TN = 1,340 ppb, TDN = 1,420 ppb, DIN = 1,148 ppb). The lowest TN and TDN were observed at Woonasquatucket River @ Manton Ave. Bridge (TN = 892 ppb, TDN = 922 ppb), while the lowest DIN was at Moshassuck River @ Footbridge at Mill St. (DIN = 626 ppb).

Among the bay stations sampled, the highest surface TN, TDN, and DIN were observed at Pawtuxet Cove (TN = 1,120 ppb, TDN = 976 ppb, and DIN = 762 ppb. The lowest surface TN and TDN were observed at Conimicut Point (TN = 433 ppb, TDN = 232 ppb), while the lowest surface DIN was at Conimicut Point, Edgewood Yacht Club and the Bullock Reach Buoy. (DIN = 13 ppb). Chlorophyll a concentrations at the surface bay stations averaged 11.63 μg/L overall with a maximum of 29.57 μg/L at the India Point Park.

The next scheduled sampling date is June 26, 2024.

​Nutrient samples were collected from thirteen river stations and nine bay stations on May 29th. In the five days prior to sampling, there were 0.37 inches of precipitation recorded at T.F. Green. 

Among the river stations sampled, the highest total nitrogen (TN), total dissolved nitrogen (TDN), and dissolved inorganic nitrogen (DIN) concentrations were observed at Ten Mile River @ Central Ave. (TN = 1,380 ppb, TDN = 1,340 ppb, DIN = 948 ppb). The lowest TN and TDN were observed at Moshassuck River @ Higginson Ave. (TN = 658 ppb, TDN = 590 ppb), while the lowest DIN was at Coles River @ Milford Rd. (DIN = 188.6 ppb, average of duplicates).

Among the bay stations sampled, the highest surface TN, TDN and DIN were observed at Phillipsdale Landing (TN = 1,070 ppb, TDN = 931 ppb, DIN = 648 ppb). The lowest surface TN were observed at Bullock Reach Buoy (TN = 698 ppb), while the lowest surface TDN and DIN were observed at Conimicut Point (TDN = 333 ppb, DIN = 165 ppb). Chlorophyll a concentrations at the surface bay stations averaged 1.67 μg/L overall with a maximum of 4.05 μg/L at the Edgewood Shoal.

The next scheduled sampling date is June 12, 2024.

​Nutrient samples were collected from seven river stations on May 15th and seven bay stations on May 14th. In the five days prior to sampling, there were 0.1 inches of precipitation recorded at T.F. Green. 

Among the river stations sampled, the highest total nitrogen (TN) and dissolved inorganic nitrogen (DIN) concentrations were observed at Pawtuxet River @ Broad St. (TN = 855 ppb, DIN = 687 ppb), while the highest total dissolved nitrogen (TDN) were observed at Moshassuck River @ Footbridge at Mill St. (TDN = 907 ppb). The lowest TN, TDN, and DIN were observed at Moshassuck River @ Higginson Ave. (TN = 525 ppb, TDN = 530 ppb, DIN = 308 ppb).

Among the bay stations sampled, the highest surface TN were observed at India Point Park (TN = 926 ppb), while the highest surface TDN and DIN were observed at Phillipsdale Landing (TDN = 804 ppb, DIN = 620 ppb). The lowest surface TN and TDN were observed at Conimicut Point (TN = 396 ppb, TDN = 160 ppb), while the lowest surface DIN was at Bullock Reach Buoy (DIN = 13 ppb). Chlorophyll a concentrations at the surface bay stations averaged 9.45 μg/L overall with a maximum of 27.95 μg/L at Pomham Rocks.

The next scheduled sampling date is May 29, 2024.

​Nutrient samples were collected from thirteen river stations on May 1st. In the five days prior to sampling, there were 0.13 inches of precipitation recorded at T.F. Green. 

Among the river stations sampled, the highest total nitrogen (TN), total dissolved nitrogen (TDN), and dissolved inorganic nitrogen (DIN) concentrations were observed at Ten Mile River @ Central Ave (TN = 1,340 ppb, TDN = 1,260 ppb, DIN = 946.2 ppb). The lowest TN and TDN were observed at Moshassuck River @ Higginson (TN = 530 ppb, TDN = 436 ppb, each being duplicate samples taken at the site). The lowest DIN were observed at Coles River @ Milford Rd. (DIN = 58 ppb). 

Among the bay stations sampled, the highest surface TN, TDN, and DIN were observed at Phillipsdale Landing (TN = 1,000 ppb, TDN = 836 ppb, DIN = 663 ppb). The lowest surface TN were observed at Conimicut Point (TN = 544 ppb), while lowest surface TDN and DIN were observed at Edgewood Shoal (TDN = 124 ppb, DIN = 17 ppb). Chlorophyll a concentrations at the surface bay stations averaged 19.62 μg/L overall with a maximum of 35.12 μg/L at the Bullock Reach Buoy.

The next scheduled sampling date is May 14, 2024.

​Nutrient samples were collected from seven river stations on April 17th and eight bay stations on April 16th. In the five days prior to sampling, there were 1.04 inches of precipitation recorded at T.F. Green. 

Among the river stations sampled, the highest total nitrogen (TN), and dissolved inorganic nitrogen (DIN) concentrations were observed at Blackstone River @ Slater Mill (TN = 751 ppb, DIN = 571 ppb).  The highest total dissolved nitrogen (TDN) was observed at Blackstone River @ Bikepath Bridge (TDN = 787 ppb). The lowest TN, TDN, and DIN were observed at Moshassuck River @ Higginson Ave. (TN = 483.5 ppb, TDN = 489 ppb, DIN = 291 ppb, all averaged with duplicates).

Among the bay stations sampled, the highest surface TN, TDN, and DIN were observed at Phillipsdale Landing Surface (TN = 844 ppb, TDN = 678, and DIN = 545 ppb).  The lowest surface TN were at Pawtuxet Cove (TN = 633 ppb). The lowest surface TDN were observed at Bullock Reach Buoy (TDN = 402 ppb, average of duplicates). The lowest surface DIN were observed at Conimicut Point Surface (DIN = 301 ppb). Chlorophyll a concentrations at the surface bay stations averaged 2.39 μg/L overall with a maximum of 3.35 μg/L at the Conimicut Point.

The next scheduled sampling date is May 1, 2024.