In the lab in shedd’s state-of-the-art environmental quality lab, eq technicians — and an army of skilled volunteers — are responsible for monitoring the aquarium’s 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 shedd’s 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...