The Oregon Department of Environmental Quality (DEQ) is a regulatory agency whose job is to protect the quality of Oregon's environment.
The DEQ staff consists of scientists, engineers, technicians, administrators, and environmental specialists. The agency's headquarters are in Portland with regional administrative offices in Bend, Eugene, and Portland; and field offices in Coos Bay, Grants Pass, Hermiston, Medford, Pendleton, Salem, and The Dalles. DEQ operates a modern pollution-control laboratory in Hillsboro.