Direct testimony of Ed O’Brien submitted on behalf of the Department of Ecology

Notes

Direct testimony by Ed O’Brien, Environmental Engineer 4 with the Washington Department of Ecology, submitted before the Pollution Control Hearings Board in a case involving the Sea-Tac Third Runway project. O’Brien discusses Ecology’s 2001 Stormwater Management Manual for Western Washington, its minimum technical requirements for runoff treatment, and how the Third Runway project’s use of the 1998 King County Surface Water Design Manual compares to the 2001 Ecology manual. The testimony explains both the standard approach and the presumptive approach for determining stormwater treatment requirements.

V V