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Environmental Cleanup Site Information (ECSI) Database Site Summary Report - Details for Site ID 689, Zidell Waterfront Property

This report shows data entered as of October 18, 2019 at 4:47:32 PM

This report contains site details, organized into the following sections: 1) Site Photos (appears only if the site has photos); 2) General Site Information; 3) Site Characteristics; 4) Substance Contamination Information; 5) Investigative, Remedial and Administrative Actions; and 6) Site Environmental Controls (i.e., institutional or engineering controls; appears only if DEQ has applied one or more such controls to the site).  A key to certain acronyms and terms used in the report appears at the bottom of the page.

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Environmental Cleanup Site Information (ECSI) Database Site Summary Report - Details for Site ID 689, Zidell Waterfront Property

Site Photos
Click to View Photo Picture Date Caption Size
View Photo 07/03/2014 Zidell north of Ross island Bridge - 1964 1307 Kb
View Photo 07/03/2014 Upland cap, near shorelone construction completion Fall 2010 162 Kb
View Photo 07/03/2014 Bankline and Sediment Cap construction 2011. Sediment cap sand ready for placement. 133 Kb
View Photo 07/03/2014 Engineered Bankline, and in-water sediment cap completion Fall 2011 655 Kb
View Photo 07/03/2014 Engineered bankline, and in-water sediment cap completion Fall 2011 636 Kb

General Site Information

Site ID: 689 Site Name: Zidell Waterfront Property CERCLIS No: 027765650
Address: 3121 SW Moody Ave. Portland 97201
  County: Multnomah Region: Northwest
Other location information: Intersecton of SW Moody and Grover St. (west side of Ross Island Bridge)
Investigation Status: Listed on CRL or Inventory
Brownfield Site: Yes NPL Site: No Orphan Site: No Study Area: No
Property: Twnshp/Range/Sect: 1S , 1E , 10 Tax Lots: 1 and 42
  Latitude: 45.5002 deg. Longitude: -122.6705 deg.  Site Size: 32.2 acres
Other Site Names:
  North Macadam District Project
  ZRZ Realty Co.

Site Characteristics

General Site Description:
Site History:
Contamination Information: A comprehensive remedial investigation (RI) was conducted at the site between 1997 and 2004.

Soil - Contaminants detected above the screening values protective of human and ecological receptors in upland and bankline soil include polychlorinated biphenyls (PCBs - primarily Aroclor 1254, Aroclor 1260, and total PCBs); antimony, arsenic, cadmium, chromium, copper, lead, mercury, nickel, and zinc; polycyclic aromatic hydrocarbons; volatile aromatic hydrocarbons (VOCs - primarily benzene); and petroleum hydrocarbons (diesel, gasoline, oil, grease, and other petroleum hydrocarbons). Asbestos is also prevalent in upland and bankline soil. Dibenzofuran congeners were the only compounds detected in soil above the equivalent 2,3,7,8-TCDD PRG.

Groundwater - Groundwater monitoring was performed since 1995 from 15 monitoring wells prior to and as part of the RI. Groundwater monitoring results were compared to ambient water quality critera (AWQCs) for the protection of ecological receptors in freshwater established by the USEPA and DEQ’s Level II ecological screening level values (SLVs) for freshwater. Antimony, arsenic, cadmium, chromium, copper, lead, mercury, nickel, zinc, PCB Aroclors 1254 and 1260, ethylbenzene, xylenes, toluene, and carbon disulfide have been detected in at least one location at levels exceeding DEQ’s SLVs or the AWQC. However, contaminant transport modeling indicates groundwater contaminants will not reach the Willamette River at concentrations exceeding AWQCs or SLVs.

Sediment - PCBs were generally detected only in surface sediment samples (to approximately 10 inches below mudline). Aroclors 1254 and 1260 and total PCBs were detected in concentrations exceeding toxicity SLVs. Metals concentrations exceeding SLVs include antimony, arsenic, cadmium, chromium, copper, lead, mercury nickel and zinc. HPAHs, detected in moderate concentrations include fluoranthene, pyrene, benz(a)anthracene, chrysene, benzo(b)fluoranthene, benzo(k)fluoranthene, benzo(a)pyrene, indeno(1,2,3-cd)pyrene, dibenz(a,h)anthracene, dibenzofuran, and benzo(g,h,i)-perylene. LPAHs, detected in moderate concentrations include 2 methyl naphthalene, naphthalene, acenaphthylene, acenaphthene, fluorene, phenanthrene, and anthracene. TPH as lube oil, motor oil , and diesel were also found in sediment at moderate concentrations. Dibutyltin, monobutyltin, and tributyltin exceeding SLVs.

Manner and Time of Release: Sources of soil contamination include former wire burning incinerators, transformers, oil water separators, oil storage areas and no-point source releases during historical ship dismantling and process operations, and waste materials placed as fill.
Hazardous Substances/Waste Types:
Pathways: The Zidell property is located in an industrial area that is currently undergoing redevelopment to mixed residential and commercial use. Zidell is also considering redeveloping the property into a similar land use. The Willamette River forms the eastern border of the property. Prior to remedy construction during 2010-2013, soil, air, groundwater, surface water (surface runoff), and river sediments served as exposure or transport pathways for chemicals from the property to receptors. Pre-remedy exposure pathways at the property includee: direct contact (dermal contact) with contaminated soil, groundwater, surface water, or sediments; ingestion of contaminated soil, groundwater, surface water or sediments; inhalation of volatiles emanating from contaminated soil or groundwater.
Environmental/Health Threats: (2/7/09 KJJ) Surface and near-surface soil contaminated with metals, PCBs, PAHs, asbestos, and petroleum hydrocarbons may pose the most significant threat to human health via direct contact, ingestion or possibly inhalation. Exposure to contaminants is restricted by the current site conditions (limited access and asphalt cap over much of the site). Groundwater use in the immediate vicinity of the Zidell property appears limited. The site is adjacent to the Willamette River, which is used for recreation and fishing. Site access restrictions completed in 2008 which limit public access to site, and provide warnings to river approaches to the bankline.
(7/2 SM) - Health threats no longer exist at the site because the ROD-required remedies have largely been constructed. Exposure pathways to remaining contaminants at the site have been eliminated by the containment remedies and institutional controls.
Status of Investigative or Remedial Action: Zidell entered into a Voluntary Letter Agreement with DEQ on October 7, 1994. Zidell entered into a RI/FS Formal Agreement on April 13, 1995. Zidell completed the XPA in February 1996. Zidell completed field work to define the nature and extent of contamination in the upland and in-water portions of the facility, and submitted a draft RI report in September 2001, which included the human health baseline risk assessment. ROD completed in 2005 which calls for cleanup of upland, bankline and in water sediments on a phased schedule. Cleanup timelines are outlined in the 2006 Consent Judgment between DEQ and Zidell. All ROD required remedies are complete as described in the Project Activity Status Narrative.
Data Sources: 1) February 2, 2009 - Sediment Cap Boundary Report (MFA)
2) March 19, 2009 - Sediment Porewater and Surface Water Sampling Report (MFA)
3) June 22, 2009 -Source Control Measure Status Report (MFA)
4) July 16, 2009 - Sediment Cap Chemical Isolation Layer Modeling Report (MFA)
5) July 24, 2009- Updated Report of Geotechnical Engineering Services Riverbank Stability Evaluation and Sediment Cap Design (GeoDesign)
6) July 24, 2009 - Initial Remedial Design Report (MFA – Sediment Cap and Bankline)
7) December 18, 2009 - Joint Permit Application (MFA to Army Corp and Oregon Division of State Lands (MFA)
8) March 15, 2010 - Prefinal Upland Remedial Design Report (MFA)
9) June 19, 2010 - Final Upland Remedial Design Report (MFA)
10) March 22, 2011 - Prefinal Bank and Sediment Remedial Design Report (MFA)
11) April 7, 2011 - Upland Remedial Action Completion Report (MFA)
12) February 21, 2012 - Final Bank and Sediment Remedial Design Report (MFA)
13) March 16, 2012 - Construction Certification Report (MFA – for Army Corp)
14) April 26, 2012 - Construction Completion Report, Zidell Bank and Sediment Remediation Project (MFA)
15) June 22, 2012 - Natural Recovery Monitoring, Sampling, and Analysis Plan (MFA)
16) November 9, 2012 - Phase III A and B Upland Cap Remedial Action Plan (MFA)
17) May 2, 2013 - Zidell Interim Site Management Plan (MFA)
18) June 12, 2013 - Bank and Sediment Remedy Operation Monitoring and Maintenance Plan (MFA)
19) August 20, 2013 - Greenway Cap Completion Report (MFA)

Substance Contamination Information

Substance Media Contaminated Concentration Level Date Recorded
ANTIMONY Groundwater 78 ppb 2/9/1989
ANTIMONY Sediment 287 ppm 10/19/1998
ANTIMONY Soil 2190 ppm 2/9/1989
ARSENIC Sediment 25 ppm 10/19/1998
ARSENIC Soil 186 ppm 2/9/1989
BENZENE Groundwater 11ppb 8/1/1995
CHROMIUM Sediment 143 ppm 10/28/1997
CHROMIUM Soil 1,540 ppm 2/9/1989
LEAD Sediment 2290 ppm 10/20/1998
LEAD Soil 58,000 ppm 8/1/1995
NICKEL Groundwater 283 ppb 8/8/1995
NICKEL Sediment 151 ppm 10/29/1997
OIL OR FUEL RELATED COMPOUNDS Groundwater 2,600 ppb 10/20/1999
OIL OR FUEL RELATED COMPOUNDS Sediment 8,600 ppm 10/19/1998
OIL OR FUEL RELATED COMPOUNDS Soil 21,000 ppm 8/1/1995
PCBs Groundwater 1.2ppb 8/1/1995
PCBs Sediment 2.6 ppm 10/19/1998
PCBs Soil 196 ppm 2/9/1989
POLYAROMATIC HYDROCARBONS (PAH) Sediment 11.5 ppm 10/19/1998
POLYAROMATIC HYDROCARBONS (PAH) Soil 398 ppm (total carcinogenic PAHs) 8/1/1995
TRIBUTYLTIN Sediment 14,000 ppb 10/28/1997

Investigative, Remedial and Administrative Actions

Action Start Date Compl. Date Resp. Staff Lead Pgm
OPERATION & MAINTENANCE  (Primary Action) 04/26/2012   Elizabeth Novak VCP
View Full Report Showing Action History

Site Environmental Controls

Control Description Begin Date End Date Last Reviewed By Last Review Date
Cap, engineered 05/02/2013   DEQ
  Comments: A DEQ-approved Interim Site Management Plan was completed on May 2, 2013. The plan describes how the completed upland and greenway caps will be maintained and managed over time, and also describes how potentially contaminated soil and groundwater will to be managed, if encountered during future development at the site.
Contamination left in place, sediment or sludge 06/12/2013   DEQ
  Comments: A DEQ-approved Bank and Sediment Remedy Operations Maintenance and Monitoring Plan was completed for the site on June 12, 2013. The plan describes how the in-water and bankline caps will be maintained and monitored to ensure they remain functional and protective over time.

Key to Certain Acronyms and Terms in this Report:

You may be able to obtain more information about this site by contacting Elizabeth Novak at the Northwest regional office or via email at If this does not work, you may contact Kim Hack (503) 229-6811, or via email at or contact the Northwest regional office.