Rands Harbor: RH1/RH1B. Location from 1992 to 2023 was 41.64628, -70.62952; Starting in 2024, location was moved to 41.64664, -70.62972 due to change in available access.
(41.64628685, -70.62952758)
Total Nitrogen
Dissolved Inorganic Nitrogen
Total Organic Nitrogen
Dissolved Oxygen
All Measurements
Average of Lowest 20%
Algal Pigments
Total Pigments
Water Clarity
Yearly Average
Rands Harbor: Site RH1A
(41.64958664, -70.63013427)
Total Nitrogen
Dissolved Inorganic Nitrogen
Total Organic Nitrogen
Algal Pigments
Total Pigments
Water Clarity
Yearly Average
Rands Harbor: Site RH3
(41.648483, -70.626905)
Total Nitrogen
Dissolved Inorganic Nitrogen
Total Organic Nitrogen
Dissolved Oxygen
All Measurements
Average of Lowest 20%
Algal Pigments
Total Pigments
Water Clarity
Yearly Average
Bay Health data is funded in part by the Massachusetts Environmental Trust.