Type of Presentation

Oral

Session Title

Remediation

Description

The Custom Plywood project, a Puget Sound Initiative site, provided a rare opportunity to implement meaningful restoration of a historical industrial waterfront as part of broader site-wide cleanup action. Implementation was phased based on cleanup actions and available funding ultimately resulting in nearshore excavation and restoration in 2013. As part of these cleanup activities, Hart Crowser assisted in the design of a beach face that was not only protective of capped contamination remaining in the upland portion of the site, but also restored historical ecological function to the nearshore. The beach design promoted forage fish spawning and use by outmigrating salmonids, and restored emergent nearshore/wetland plants as part of a pocket estuary. Performance surveys over the past two years have quantitatively examined salmonid use, epibenthic zooplankton productivity, forage fish spawning occurrence/success, and wetland plant recruitment. The monitoring results show an increase in use, activity and productivity along the beach and within the estuary year to year compared to an adjacent unrestored shoreline. Not only did we remove contamination that was a potential human health risk but we also restored the physical and ecological processes at the beach. Our remediation design has restored ecological function to the Fidalgo Bay system which has experienced over a hundred years of industrial waterfront use.

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Have your cake and eat it too: Remediation and restoration as drivers of an environmental cleanup in Anacortes, WA

2016SSEC

The Custom Plywood project, a Puget Sound Initiative site, provided a rare opportunity to implement meaningful restoration of a historical industrial waterfront as part of broader site-wide cleanup action. Implementation was phased based on cleanup actions and available funding ultimately resulting in nearshore excavation and restoration in 2013. As part of these cleanup activities, Hart Crowser assisted in the design of a beach face that was not only protective of capped contamination remaining in the upland portion of the site, but also restored historical ecological function to the nearshore. The beach design promoted forage fish spawning and use by outmigrating salmonids, and restored emergent nearshore/wetland plants as part of a pocket estuary. Performance surveys over the past two years have quantitatively examined salmonid use, epibenthic zooplankton productivity, forage fish spawning occurrence/success, and wetland plant recruitment. The monitoring results show an increase in use, activity and productivity along the beach and within the estuary year to year compared to an adjacent unrestored shoreline. Not only did we remove contamination that was a potential human health risk but we also restored the physical and ecological processes at the beach. Our remediation design has restored ecological function to the Fidalgo Bay system which has experienced over a hundred years of industrial waterfront use.