|Click to View Photo||Picture Date||Caption||Size|
|View Photo||01/05/2011||Appying metals stabilization chemical to surficial soils, Willamette Cove east parcel uplands. June 2008||73 Kb|
|View Photo||01/05/2011||Uplands metal fixation of shallow soils prior to offsite disposal. June 2008||81 Kb|
|View Photo||01/05/2011||High Water at Willamette Cove June 2008||80 Kb|
|View Photo||01/05/2011||Low water at Willamette Cove Sept. 2009||197 Kb|
|View Photo||01/05/2011||Stern of sunken steel barge. Central parcel. Sept 2009||171 Kb|
|View Photo||01/05/2011||Willamette Cove upper beach excavation to evaluate upland contaminant sources to river. Sept. 2010.||426 Kb|
|View Photo||01/05/2011||Rebar and waste metal in beach excavation. Sept. 2010||479 Kb|
|View Photo||01/05/2011||Sheen on groundwater beneath upper beach, central Willamette Cove beach. Sept. 2010||418 Kb|
|View Photo||01/05/2011||Willamette Cove beach following trenching investigation work. Sept 2010||494 Kb|
|View Photo||01/05/2011||Concrete debris on slope above mean high water line, Willamette Cove Beach. Sept 2010||534 Kb|
|View Photo||01/05/2011||Metal removed from beach trench. Willamette Cove Sept 2010||559 Kb|
|View Photo||01/05/2011||Railroad bridge on Willamette River from Willamette Cove site. Sept. 2010||265 Kb|
|View Photo||01/05/2011||Excavator trenching upper beach. Willamette Cove. Sept 2010||423 Kb|
|View Photo||01/05/2011||Sheen in water at Willamette Cove beach downslope of beach trench investigation area. Sept 2009||159 Kb|
|View Photo||01/05/2011||Sunken steel barge on steep riverbank of former dry dock area. Sept 2009||176 Kb|
|Site ID: 2066||Site Name: Willamette Cove||CERCLIS No:|
|Address:||Foot of N Edgewater St. Portland 97203|
|County: Multnomah||Region: Northwest|
|Other location information:|
|Investigation Status:||Listed on CRL or Inventory|
|Brownfield Site: No||NPL Site: No||Orphan Site: No||Study Area: No|
|Property:||Twnshp/Range/Sect: 1N , 1W , 12||Tax Lots: 100|
||Site Size: 27 acres|
|Other Site Names:||
|General Site Description:|
This site was used as a lumber mill, plywood mill, barrel manufacturing, and a shipbuilding/repair and drydock facility until the 1960s. These past uses have resulted in significant soil contamination in the upland and riverbank portions of the property, Willamette River sediment adjacent to the site.
Site-related contamimants include metals (mercury, lead, etc.), polychlorinated biphenyls (PCBs), and chlorinated dibenzo-dioxins and -furans (dioxins). Contaminants are sufficiently elevated to pose a risk to both human health and the environment.
Contaminants from the adjacent McCormick & Baxter Superfund site (ECSI #74) have migrated in sediment and groundwater into the southeastern portion of the Willamette Cove site. A portion of the Willamette Cove shoreline and lagoon contain a protective cap to prevent the continued release of M&B contaminants into the Willamette River.
At low river stages in 2010 and 2011, a petroleum sheen is present emanating into the river from beach sand in the inner cove (east parcel).
In October 2010, trenches excavated to the water table beneath the east parcel beach exposed oily sand containing PCB Aroclor 1254 at a concentration of 207,000 ppb. Surface sand samples from the same beach did not contain elevated PCB concentrations.
|Manner and Time of Release:||
The specific manner and time of releases are not known, although on-site industrial activities between the 1930s and the 1960s are believed to be the likely sources of hazardous substances in upland soil. Waterfront activities at the former cooperage may have contributed to the petroleum and PCB contamination found at the Willamette Cove inner beach and contribute to the petroleum sheen on river water.
Contaminated sediment and groundwater from McCormick & Baxter (ECSI #74) have impacted the southeastern portion of Willamette Cove adjacent to the railroad bridge and abutment.
|Hazardous Substances/Waste Types:||
Upland and riverbank soil: heavy metals (including lead and mercury), dioxins/furans, polychlorinated biphenyls (PCBs), and petroleum hydrocarbons including polynuclear aromatic hydrocarbons (PAHs).
Groundwater: metals and petroleum products and constituents (PAHs).
Willamette River sediment: dioxins/furans, PCBs, metals, tributyl tins, and petroleum hydrocarbons and constituents.
Pathways of greatest concern for Willamette Cove are:
1) skin contact or swallowing of contaminated sediment or soil by aquatic organisms, birds, and mammals found in this stretch of the river.
2) consumption of resident fish and crayfish caught by fishermen.
3) ingestion of and skin contact with sediments and surface water during recreational use of beaches.
4) Human and ecological risk due to handling contaminated site soils.
(These use pattern may change as METRO intends to preserve the site as undeveloped greenspace)
|Status of Investigative or Remedial Action:||
See DISP (Disposals) section above for removal actions performed at the Wilamette Cove site.
The Record of Decision (DEQ, 1996) for McCormick & Baxter (M&B) addresses contaminated sediments and groundwater that have migrated from the M&B site. The M&B sediment cap remedial action extends into Willamette Cove to contain contamination originating from M&B.
(GMW 7/30/97) Further evaluation of PAHs, PCP, metals, and tributyltin in near-shore sediment is needed, since contaminated sediments are the most significant environmental concern at the site. In addition, since METRO has designated this property as undeveloped public greenspace, direct contact with contaminated soils (and sediment) could occur. Further site actions should therefore include better characterization of metals in shallow soils where previous data suggests there are hot spots. Finally, the source and extent of petroleum and TCE in groundwater at the site should be investigated. Further state action is a medium priority.
(4/21/00 RGS/VCP) A Voluntary Agreement and Scope of Work for Remedial Investigation and Source Control Measures was sent to Metro in December 1999. The Port of Portland and Metro are currently negotiating an Interagency Agreement for the RI. DEQ expects to sign an agreement with the Port/Metro in October 2000.
(4/2/01 RGS/VCP) The Port and Metro submitted the RI workplan in February 2001. The RI is scheduled to begin in April 2001.
(11/21/01 RGS/VCP) The Phase I RI was performed in April and May 2001. Results of the Phase I investigation and a proposal for the Phase II RI were submitted to DEQ on September 30, 2001. DEQ review comments were submitted to the Port and Metro in November 2001.
(12/23/02 RGS/VCP) The Phase II RI was conducted January - June 2002.
(12/6/05 RGS/VCP) The RI report was submitted in March 2003. RI data gaps are currently being addressed and the Risk Assessment initiated. The McCormick & Baxter cap was constructed in a portion of Willamette Cove in the summer of 2004. During this construction, a petroleum product seep was observed and removed from the upland portion of the site (down to the Mean Low Water Line); the in-water extent is unknown.
2006 Baseline Risk Assessment identified upland areas with unacceptable risk to ecological and human receptors. These risk findings prompted 2008 upland soil removal.
2006 - 2010
Considerable site work was performed during this interval and can be summarized as:
-Upland soil remediaton.
-Performance of tasks required to complete Source Control Evaluation.
-Additional effort placed on erodable soils evaluation and groundwater to surface water pathway to evaluate possible upland sources to in-river Area of Potential Concern and Cove PCB Hotspot.
-Additional drilling and soil sampling along service road to dry docks.
-Land use planning
Key project documents include:
1)Level II Environmental Site Assessment, St. Johns Riverfront Property, Portland, Oregon, Sweet-Edwards/EMCON 3/15/89
2)Supplemental Environmental Site Assessment, St. Johns Riverfront Property, Portland, Oregon, EMCON 1/9/96
3) Data Summary/Site History Report, Hart Crowser, 11/8/00
4)RI Work Plan, Hart Crowser, 2/26/01
5)Phase I Progress Report, Hart Crowser, 9/27/01
6) Remedial Investigation (Hart Crowser; 3/11/03)
7) RI Addendum: Supplemental Preliminary Assessment of the Willamette Cove Upland Facility (Port of Portland; 9/19/2003)
8) Removal Action Activities October 28, 2004 (Ash Creek Asso. 3/8/05)
9) GW Monitoring Report Dec 05 (BBL, Ash Creek, New Fields) 4/21/06
10) Riverbank Soil Sampling Report (BBL/Ash Creek Asso) (5/5/06)
11) Baseline Risk Assessment (Ash Creek, New Fields) 9/2007
12) Removal Action Report (Ash Creek, New Fields) 12/2008
13) Characterization of Surface Sediment (Ash Creek, New Fields) 3/2010
14) Source Control Sampling Workplan (Ash Creek Asso) 3/31/2010
15) Draft Feasibility Study, Willamette Cove Upland Facility. Apex, February 12, 2014.
16) Revised Feasibility Study, Willamette Cove Upland Facility. Apex, October 2014.
17) Removal Action Engineering Design Report, Willamette Cove Upland Facility. Apex, October 21, 2014.
18) Proposed Vertical Soil Characterization, Willamette Cove Upland Facilility. Apex, January 21, 2015.
19) Revised Removal Action Engineering Design Report, Willamette Cove Upland Facility. Apex; February 27, 2015.
20) Removal Action Drawings and Specifications, Willamette Cove Upland Facility. Apex; February 2, 2015. Revised copy dated March 2015 subsequently presented to DEQ.
21) Response to DEQ/EPA Comments, Removal Design, Willamette Cove Upland Facility. Apex, February 27, 2015.
22) Vertical Soil Characterization Results. Apex; April 7, 2015.
23) Final Upland Removal Design Report (May 2015) and Contractor Specifications (March 2015).
24) Upland Removal Report; Apex 2016
25) Amended Groundwater Monitoring Plan. Apex; November 7, 2016.
26) Response to DEQ Comments, June 2016 Groundwater Data Report. Apex; November 3, 2016.
|Substance||Media Contaminated||Concentration Level||Date Recorded|
|ARSENIC||Groundwater||25 ppb (total)||12/8/1988|
|ARSENIC||Groundwater||<2 ppb (dissolved)||12/8/1988|
|CADMIUM||Groundwater||50 ppb (total)||12/8/1988|
|CADMIUM||Groundwater||<5 ppb (dissolved)||12/8/1988|
|CADMIUM||Soil||4 ppm (composite)||10/20/1995|
|CHROMIUM||Groundwater||1,800 ppb (total)||12/8/1988|
|CHROMIUM||Groundwater||<5 ppb (dissolved)||12/8/1988|
|COPPER||Groundwater||3,000 ppb (total)||12/8/1988|
|COPPER||Groundwater||<10 ppb (dissolved)||12/8/1988|
|COPPER||Soil||246 ppm (composite)||10/20/1995|
|DIOXIN AND DIOXIN-LIKE COMPOUNDS||Soil||2,3,4,7,8-PeCDF 16,000 ng/kg||10/1/2010 2:48:15 PM|
|LEAD||Groundwater||410 ppb (total)||12/8/1988|
|LEAD||Groundwater||8 ppb (dissolved)||12/8/1988|
|LEAD||Soil||13,400 ppm (beach sand)||3/1/2008 3:01:18 PM|
|MERCURY||Groundwater||2.2 ppb (total)||12/8/1988|
|MERCURY||Groundwater||0.2 ppb (dissolved)||12/8/1988|
|MERCURY||Sediment||0.56 ppm (composite)||10/20/1995|
|MERCURY||Soil||9.2 ppm (composite)||10/20/1995|
|MERCURY||Soil||65 ppm (beach sand)||3/1/2008 3:03:11 PM|
|NICKEL||Groundwater||2,100 ppb (total)||12/8/1988|
|NICKEL||Groundwater||11 ppb (dissolved)||12/8/1988|
|OIL OR FUEL RELATED COMPOUNDS||Groundwater||297 ppm||10/20/1995|
|OIL OR FUEL RELATED COMPOUNDS||Soil||680 ppm||12/8/1988|
|OIL OR FUEL RELATED COMPOUNDS||Soil||49,400 ppm (beach sand)||9/27/2010 2:56:46 PM|
|PCBs||Soil||207,000 ppb, Aroclor 1254 (beach sand)||9/27/2010|
|POLYAROMATIC HYDROCARBONS (PAH)||Soil||11,200 ppb Benzo(a)pyrene||10/4/2010 3:06:51 PM|
|ZINC||Groundwater||7,100 ppb (total)||12/8/1988|
|ZINC||Groundwater||75 ppb (dissolved)||10/20/1995|
|ZINC||Soil||865 ppm (composite)||10/20/1995|
|Action||Start Date||Compl. Date||Resp. Staff||Lead Pgm|
|FEASIBILITY STUDY (Primary Action)||01/08/2014||Daniel Hafley||VCS|
|View Full Report Showing Action History|
Site Environmental Controls
|Control Description||Begin Date||End Date||Last Reviewed By||Last Review Date|
|Comments: "No Trespassing" signage installed at site ca. 1998. "No Fishing" advisory signs and additnial "No Trespassing" signs installed 2011. "Area Closed", "No Trespassing" and "Health Advisory" signs installed 2012.|
Key to Certain Acronyms and Terms in this Report:
You may be able to obtain more information about this site by contacting Daniel Hafley at the Northwest regional office or via email at firstname.lastname@example.org. If this does not work, you may contact Gil Wistar at (503) 229-5512, or via email at email@example.com or contact the Northwest regional office.