Title: Pilot Study Implementation Report, Lower Columbia Slough – Pacific Meats Cleanup Site; Portland, Oregon; ECSI No. 145 
Resource Type: document --> case study 
Country: USA 
Language(s): English
Year: 2016 
Author 1/Producer: Apex 
Author / Producer Type: Consultancy, contractor or other service provider 
Report/Document number/description: January 27, 2016; 1888-03/Task 2 
Publisher Country: USA 
Publisher web link (root): http://www.oregon.gov
Report / download web link (=direct link): http://www.oregon.gov/deq/FilterDocs/PilotImpReport.pdf  
EUGRIS Keyword(s): Contaminated land-->Remediation options-->In situ treatment technologies
Short description: This report documents the application of activated carbon (AC) products in the Lower Columbia Slough for a pilot study initiated in 2016 within the Slough waterway adjacent to the Pacific Meats Cleanup Site. Two forms of commercially available AC sediment amendments—Sedimite™ and AquaGate+PAC™—were installed to reduce bioavailability of elevated levels of PCBs in sediments. Shallow sediment sample PCB concentrations ranged from 69 µg/kg to 2,040 µg/kg, and deep sample PCB concentrations ranged from nondetect to 2,450 µg/kg. This report provides an assessment of delivery methods for applying AC to the target sediments; application of AC to the designated study area; and documentation of the implementability and costs of the AC amendment application methods and products. Future monitoring results will illuminate amendment effectiveness in reducing pore water concentrations of PCBs in the biologically active zone.  
Submitted By: Professor Paul Bardos WhoDoesWhat?      Last update: 07/03/2018