In the lab in shedds state-of-the-art environmental quality lab, eq technicians and an army of skilled volunteers are responsible for monitoring the aquariums most basic resource, its 5 million gallons of fresh and salt water.. When i turned 18 in september 2013, i made another change; i switched my volunteer focus to science and moved to shedds water quality lab. since then, i have been working every week with shedd staff members to test aquarium water samples, ensuring the health and well-being of the animals.. Water-quality laboratory: test the waters and help ensure a healthy environment for shedd's animal collection. divers: dive in to volunteering at shedd and see things from our animals perspective. opportunities are available in several exhibits, and the diving conditions are ideal!. Giant bags to study ocean acidification - environmental Corals off maug islands face acidity spurred by carbon Study shows blind cavefish can count - enviro