Titrating a dissolved oxygen sample using a Modified Winkler reaction takes concentration.

These students are processing a water sample on the Back Dock at LUMCON.

Sampling water quality on the Back Dock at LUMCON can be a chilly task on a cool November day.

Pointing the refractometer toward the sun aids in taking a proper reading.

We must be careful to pour all of the chemicals into the waste container to make sure we don't contaminate our environment.

These students are learning about our environment on this beautiful autumn day.

These students pose on the bridge of the LUMCON front pond.

You must pour 20 milliliters of sample into the titration vial.

Processing samples on the back dock at LUMCON is fun and educational.