Welcome to the Portland Harbor Superfund Site Interim Data Portal!

This website provides public access to view and download analytical data and reports associated with environmental studies of the Portland Harbor Superfund Site. All data sets and associated reports available through this website have been approved by EPA to use in designing future cleanup actions for the Portland Harbor Superfund Site. The Portland Harbor Superfund Site includes the lower Willamette River near Portland, Oregon, from river mile 1.9 to river mile 11.8. When available, reports associated with data collection and analysis may also be viewed and downloaded for each study. Additional data sets will be added to this site as they become available. EPA is continuing to explore more comprehensive approaches for managing and displaying data for the Portland Harbor Superfund Site.

Click on the links for the studies listed below to access data sets available for download. The 'Search' box can be used to filter the list of data sets, and clicking on the column headers will re-order the list.

Year Study Authors Sample types Measurements Spatial extent Date range
2009 Field and Data Report Downtown Portland Sediment Characterization, Willamette River, Portland, Oregon (Phase I) GSI Water Solutions, Inc. Surface and Subsurface Sediment Samples Metals, polycyclic aromatic hydrocarbons (PAH), alkylated PAHs,polychlorinated biphenyl (PCB) aroclors, semivolatile organic compounds (SVOC), totalpetroleum hydrocarbon (TPH) (as diesel- and oil-range petroleum hydrocarbons, withsilica gel treatment), phenols, pesticides, and butyltins. Select samples also wereanalyzed for dioxins and furans. Conventional parameters also were analyzed at each station: grain size, total solids, andtotal organic carbon (TOC). PP&R sediment samples were analyzed for metals, PAHs, SVOCs, pesticides, PCBaroclors, EPH/VPH, and butyltins. The following conventional parameters also wereanalyzed at select stations: grain size, total solids, TOC, total sulfide, and ammonia asnitrogen. WILLAMETTE RIVER, PORTLAND, OREGONWILLAMETTE RIVER, PORTLAND, OREGON. River Mile (RM) 12 to 16 May 2008 - June 2008
2010 Field and Data Report, Downtown Portland Sediment Characterization Phase II GSI and Hart-Crowser Surface and Subsurface Sediment Samples Focus Area specific target COC's; PCBs, dioxins/furans, metals, pentachlorophenol (PCP), PAH's, butyltins, TPH, grain-size, sulfides, ammonia, and pesticides WILLAMETTE RIVER PORTLAND, OREGON. River Mile (RM) 12 to 16. February 2010 - March 2010
2012 Portland Harbor 2011 Baseline Smallmouth Bass Tissue Study Field Sampling Report and PH Fish Data Final Report GSI and Tetra Tech Smallmouth Bass Fish Tissue PCB following SOW SOM01.2 and EPA Method 1668C. Lipids following SOW SOM01.2 and EPA Method 1668C 0.2 RM on the east and west banks of the Portland Harbor (RM 1.9 to RM 11.8) as wellas several samples collected for reference from RM 1 (downstream), Multnomah Channel(MC; downstream), and RM 16 (upstream). Additional reference location added by USACE and EPA; between RM 16W and RM 17W. September 2011 - June 2012
2013 2012 Smallmouth Bass Tissue Study, Data Report Kennedy/Jenks Whole-body smallmouth bass fish tissue All samples were analyzed for polychorinated biphenyls (PCBs) and lipids by EPA Method 1668C, and for moisture content by Axys Standard Operating Procedure (SLA-015). For the purposes of this evaluation, the Study Area includes tissue samples collected between RM 1.9 and RM 11.8, inclusive. The RM classifications presented herein are designated as follows: RM 1.5 up to RM 2.5 = "RM 2", RM 2.5 up to RM 3.5="RM 3", etc. Samples collected from RM 10.5 through RM 12.0 were designated as "RM 11”. August - September, 2012
2014 Characterization of the Lower Willamette River with Sediment Profile Imaging: Changes in Space & Time Germano & Associates, Inc. NA NA Willamette River Mile (RM) 3 to RM 13 July 2014
2014 Final Supplemental Remedial Investigation/Feasibility Study Field Sampling and Data Report, River Mile 11 East, Portland, Oregon GSI Water Solutions, Inc. Bank Debris, Groundwater, Sediment Trap, Soil, Subsurface Sediment, Surface Sediment Total Solids, Grain Size Distribution, Total and Dissolved Metals, Total and Dissolved Mercury, PCBs, Organochlorine Pesticides, SVOCs, NWTPH-Dx, NWTPH-Gx, PCDD/Fs, Turbidity, Chloride and Sulfate, Conductivity, Iron, Bicarbonate and Carbonate, pH, Total and Dissolved Organic Carbon, Hardness, VOCs RM11E, WILLAMETTE RIVER, PORTLAND, OREGON. (RM) 10.91 and RM 11.6 along the east bank of the Willamette River and includes Area of Potential Concern (AOPC) 25) and the riverbank area to the top of the bank. October 2013 - May 2014
2014 Field and Data Report, River Mile 6 East, Focused Sediment Chacterization GSI Water Solutions, Inc., Portland, OR Sediment PAH RM 6E May 2014
2015 The Nature and Sources of PAH in Sediments in the Vicinity of the Former ExxonMobil Terminal 2014 Investigation NewFields Sediment PAH RM 1.9 to RM 11.8 June 2015
2016 Approximate Remediation Area for Selected Remedy - GIS Files CDM Smith NA GIS Files NA 2016
2016 Collection of RI/FS related documents including RI and FS databases Various Sediment Consists of 787 total analytes Willamette River (RM 0 - 22) June 1997 - April 2013
2018 Approximate Remediation Area for ESD - GIS Files CDM Smith
2018 Willamette River, Oregon River Mile 1.9 to 11.8 Hydrographic Survey (2018 Portland Harbor Bathymetry Data) David Evans and Associates, Inc. NA NA Willamette River Mile (RM) 1.9 to RM 11.8 March 2018 - July 2018
2018 Final Field and Data Report, Upriver Reach Sediment Characterization (URSC), Lower Willamette River GSI Water Solutions, Inc. and HartCrowser Sediment PCB congeners (EPA Method 1668C), Metals (EPA Method 6020A), Mercury (EPA Method 7471B), PAHs (EPA Method 8270D), Diesel-Range Petroleum Hydrocarbons (NWTPH-Dx), Organochlorine Pesticides (EPA Method 1699M), Polychlorinated Dibenzo-p-dioxins and Polychlorinated Dibenzofurans (PCDD/Fs) (EPA Method 1613B), Select Phenols and Phthalates (EPA Method 8270D), Total Solids (Puget Sound Estuary Protocol), Total Organic Carbon (TOC) (Puget Sound Estuary Protocol), Polybrominated Diphenyl Ethers (PBDEs) (EPA Method 8270C-SIM), and Condensed Grain Size (ASTM D422M). It should be noted that Organochlorine Pesticides (EPA Method 1699M) cannot be determined in the data set. Organochlorine Pesticides are identified in the associated data file (UpriverSedCharData.xlsx) under the "lab_anl_method_name" ALS SOP which may specifically address Organochlorine Pesticides analysis under EPA Method 1699M. This would need to be verifed with the ALS laboratory in Kelso, Washington. Upriver Reach, Lower Willamette River, River Mile (RM) 16.6 and extending to Willamette Falls at approximately RM26, West and East shore. November 2017 - December 2017
2019 Portland Harbor Site Features - GIS Files CDM Smith NA GIS Files RM 1.9 to 11.8 2019