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River Mile 11E Study Area - Portland Harbor

Summary Information
(last updated on: 5/23/2018 11:15:13 AM)
Work is ongoing at the Portland Harbor/Willamette River River Mile 11 East (RM11E) area, under the direction of EPA Region 10, to support remedy selection and implementation in the area. Remedial action will be based on the january 2017 ROD issued for Portland Harbor by EPA. The RM11E area is an important area within the Harbor, being located at the most upstream end of the study area and containing high concentrations of contaminants, notably PCBs. It has been identified as an "early action" area by EPA. Important investigation work elements completed in the past few years under EPA have included: a) upland groundwater and riverbank investigation efforts; b) sediment investigation; c) porewater investigation; and d) remedy implementability analysis. In January 2018, an Administrative Steelement Agreement and Order on Conset for Supplemental RI/FS Work and Remedial Design, Amendment No. 1, was complete by EPA and the RM11E Group parties. In March 2018, a draft Basis of Design Report WP was submitted to EPA, and included DEQ review and comment. A revised document (BODR WP) was submitted to EPA. In May 2018, a Recontamination Assessment (upland and in-water) was submitted to EPA on behalf of the RM11E Group. The document is currently under review.
General Site Information
Site: River Mile 11E Study Area - Portland Harbor (ECSI Site ID: 5860) CERCLIS (EPA) Id
Project Manager: Daniel Hafley Investigative Status:Contamination Suspected
PM Phone: (503) 229-5417 NPL(National Priority Listing):No
Address: East bank of Willamette River, between RM 10.9 and 11.6 (approx.) Is this site an Orphan?No
Portland, 97227 Is this site a brownfield?No
Region: Northwest Region Click for more details ...  
Site Documents
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File NameCategory File Size MB Document Date Upload Date
RM11E AOC First Amend -- 12_18 final clean -- PRP signatures plus SOW -- 2018 01 11 SIGNED AND COMPL Orders/Consent Judgments 0.5093 1/12/2018 1/12/2018
RM11E_EPA_Final_AOC_032813_combined.pdf Orders/Consent Judgments 0.9876 4/15/2013 5/8/2018
Recontamination Assessment Part1.pdf Reports 10.5500 5/9/2018 5/23/2018
Recontamination Assessment Part2.pdf Reports 9.8289 5/9/2018 5/23/2018
Recontamination Assessment Part3.pdf Reports 7.2004 5/9/2018 5/23/2018
Recontamination Assessment Part4.pdf Reports 10.3042 5/9/2018 5/23/2018
Recontamination Assessment Part5.pdf Reports 9.9632 5/9/2018 5/23/2018
Revised BODR Work Plan May 2018.pdf Work Plans 3.4848 5/16/2018 5/23/2018
Revised BODR Work Plan Cover - May 2018.pdf Work Plans 0.1770 5/16/2018 5/23/2018
Department of Environmental Quality
700 NE Multnomah Street, Suite 600 Portland, OR 97232
Hours: Mon-Fri, 8 a.m.-5 p.m

Email: DEQInfo@deq.state.or.us | Phone: 503-229-5696 | Fax: 503-229-6124

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