Innovative Design for New Post-Construction Stormwater Management Standards at Port of Oakland

In 2015, TraPac, LLC (TraPac) initiated a project to expand into and modernize Berths 25 and 26 at the Port of Oakland (POAK). Berths 25 and 26 had been occupied by several tenants over the years prior to implementation of the current stormwater regulations. Portions of the leased property were subject to a deed restriction from the California Department of Toxic Substances Control (DTSC). In 2015, POAK developed new post-construction stormwater management standards to comply with the United States Environmental Protection Agency’s National Pollutant Discharge Elimination System (NPDES) permit program that is imposed on the California State Water Resources Control Board (State Water Board), who approves implementation plans by local agencies. TraPac’s development required compliance with the POAK’s new post-construction stormwater management standards. This paper outlines the constraints that needed consideration, the post-construction best management practices (BMPs) selected, and their implementation in an innovative design for compliance with the new post-construction management requirements.