The Arkema site is a former pesticide manufacturing facility located on the southwest bank of the Willamette River near the railroad bridge. The site has very high levels of DDT and breakdown products, monochlorobenzene, chrome (hexavalent chromium), and perchlorate contributing to acute toxicity across the entire site in water. An early action is underway to address this "hot spot" within Portland Harbor.
Arkema Removal Action
On May 11, 2010, Arkema sumbitted its Preliminary CDF Screening Evaluation to EPA for review.
In accordance with the AOC, an engineering evaluation/cost analysis (EE/CA) will be
prepared to present feasible disposal options for contaminated sediment within the
removal action area. The purpose of this CDF screening evaluation is to respond to the
USEPA’s request (USEPA 2008d) for further analysis, in advance of the EE/CA,
regarding the feasibility of a confined disposal facility (CDF) to contain contaminated
sediments adjacent to the Site. The CDF screening evaluation is intended to be
thorough enough to determine whether the CDF is feasible under the EE/CA process,
as well as under the harborwide remedial investigation/feasibility study process. This
screening evaluation does not replace the need for a full and/or final evaluation of the
CDF option in the EE/CA.
For more information on CDFs generally, click here.
Other Upland Sites Administed by DEQ:
Doane Lake (Rhone-Poulenc)
Wacker Siltronic, Corp. (NW Natural Gas)
Willbridge Terminal (Multiple PRPs)