The city Department of Environmental Services will host an educational field day at the 'Aiea watershed for 120 eighth-grade students and teachers from 'Aiea Middle School tomorrow.

During the field day, the students will learn about data collection to measure water quality in the watershed. Students will also learn about the natural history of the 'Aiea watershed as well as the identification of invasive plant and pest threats.

"Our goal is to foster an awareness of watershed issues, ecosystem management and stewardship for the 'Aiea watershed and adjacent areas," said science teacher Matt Zitello.