Watershed and Water Quality

Students collect water samples at various watershed locations in Cohasset (Bound Brook, the Gulf River, and the harbor) and conduct bacteria monitoring and chemical analyses of the watershed, from the fresh water that feeds Cohasset Harbor to the ocean water that supplies our beaches. The water samples are tested by the students for dissolved oxygen, pH, temperature, salinity, chlorophyll-a, nitrates and enterococci bacteria. Students work with a variety of lab equipment, such as a Turner Designs fluorometer (pictured) for nitrate analysis. Fluorometry is used in biochemistry for measuring the intensity of fluorescence and absorbance when light passes through a liquid (water sample). CSCR’s nitrate analysis helps us understand if there is too much bio-chem productivity – a condition that causes algae blooms which result in a reduction of life in an ecosystem. We do math and science in real life, for sure! We record our results and represent our findings at the Annual State of the Harbor. This is a fantastic interdisciplinary bio-chem-environmental science experience and resume-builder.

Open to all students grades 9-college. Dates: June 22 to August 28

Meets Tuesday- Wednesday-Thursday, 12:30 – 3:00 pm

Student collecting a water sample to be tested at our lab.
Turner Designs Fluorometer