Mucking around with Wessie! It's volunteers rocking at Otterbein Lake! Volunteers put on their mud boots, hats, gloves: picked up their tools... and headed out for three Saturdays in a row to work for three hours each session. These Otterbein College students met up with other local Westerville volunteers at a giant pit in the ground. The eight-acre hole was once a farm field. As housing developments were made, the field turned into a source for landscape yards. After that, it filled with water.