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Environmental Cleanup Site Information (ECSI) Database
Site Summary Report - Details for Site ID 2442, Kittridge Distribution Center   

This report shows data entered as of March 27, 2015 at 10:17:58 AM

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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Go to DEQ's Facility Profiler to see a site map as well is information on what other DEQ programs may be active at this site.

General Site Information

Site ID: 2442 Site Name: Kittridge Distribution Center CERCLIS No:
Address: 4959 NW Front Ave. Portland 97210
  County: Multnomah Region: Northwest
Other location information: The site property occupies 4.95 acres approximately 0.1 miles southwest of the Willamette River. Site stormwater discharges to City of Portland Outfall No. 19.
Investigation Status: Listed on CRL or Inventory
Brownfield Site: No NPL Site: No Orphan Site: No Study Area: No
Property: Twnshp/Range/Sect: 1N , 1E , 19 Tax Lots: 1200
  Latitude: 45.5577 deg. Longitude: -122.7322 deg.  Site Size: 4.95 acres
Other Site Names:
  Asset Recovery
  Portland Harbor Sediment Study
  Schnitzer Investment Corp
  Schnitzer - Kittridge

Site Characteristics

General Site Description: (6/8/04 RGS/VCP) Site currently used as a commercial and light industrial Park. Site redeveloped in 1996 and the former buildings and infrastructure were removed. Over 90% of the facility is either paved or covered with buildings.
Site History: (6/08/04 RGS/VCP) Between 1942 and 1985, an acetylene plant operated on-site. Waste products (slaked lime) was stored in on-site ponds. Two drain fields/septic systems were present between about 1942 and 1971. A drywell is reported to have existed on-site.

A City of Portland drawing shows that the site may historically discharged stormwater to City Outfall No. 19.
Contamination Information: Sediment sampling results from the Portland Harbor revealed elevated levels of barium, cadmium, lead, mercury, silver, zinc, and benzoic acid in sediments adjacent to the site. Elevated levels of metals, petroluem compounds, have been documented in subsurface soil in the portion of the site formerly used for storage of lime sludges (the lime pond). This area also had pH readings in the range of 12.5.

Acetone, MIBK, and metals were detected in site groundwater. The site was redeveloped in 1996 and buildings and pavement now cover most of the site.

(6/8/2004, RGS/VCP) DEQ determined that the site is not likely a current source of contamination to the Willamette River and that the site is a low priority for further action. DEQ recommends that additional sampling be performed to address the data gaps to further characterize hazardous substance releases identified in the lime pond, the former acetylene plant area, and the TPH contaminated areas. This additional focused sampling is needed to determine the nature and extent of contamination and whether the site poses unacceptable risks to human health and/or the environment.
Manner and Time of Release: (6/08/04 RGS/VCP) Numerous releases of hazardous substances of been document on-site during various environmental investigations. Releases are believed to have occurred during historical operations (e.g., spills, tanks) associated with the acetylene plant and the slaked lime ponds. Laboratory data indicate the lime ponds contained zinc, chromium, and lead above background levels and total petroleum hydrocarbons.

Site soil and groundwater have been impacted with metals, total petroluem hydrocarbons and volatile organic compounds. Polychlorinated biphenyls (PCBs) were detected in several investigations.

Historically site stormwater discharges from the site were documented to contained metals. Insufficient data are available to evaluate if historic stormwater discharages have impacted the Willamette River sediments. The site redevelopment in 1996 is believed to have eliminated the stormwater pathway associated with the known contaminants at the site.
Hazardous Substances/Waste Types: Metals (arsenic, cadmium, chromium, copper, mercury, lead, and zinc) detected at elevated concentrations in sediments near City of Portland Outfall No. 19 (BES, 2004) are similar to those detected on-site. Phthalates, polycyclic aromatic hydrocarbons, and PCBs were also detected in sediments near Outfall 19. However, sufficient data are not available at this time to establish a link between the contaminants detected on-site and in Willamette River sediments.
Pathways: Soil and groundwater contamination have been documented at the site. Current or future site workers and utility workers may be exposed to site contaminants in soil during construction or excavation activities. Available groundwater data and the distance to the river (>1000 feet) indicate that it is unlikely that groundwater is migrating from the site to the river.

Insufficient data exist to assess potential risks to human health or the environment. However, based on available soil concentrations and the apparent lack of significant groundwater impacts, further investigation of this site has been assigned a low priority.
Environmental/Health Threats: The site lies in an industrialized area. No residentially zoned properties occur within a quarter mile of the site. Because a substantial portion of the site is paved, the risk exposure to potentially contaminated surface soil appears low. DEQ determined that it is unlikely the site is a current source of contamination to the Willamette River.
Status of Investigative or Remedial Action: (2/2/00 TBG/SAP) Based on initial sampling results from a river sediment quality study, the Schnitzer site was identified as a potential source of contamination to the river. Strategy Recommendation completed December 1999. An Expanded Preliminary Assessment should be conducted at the site to evaluate sediment contamination as a result of discharge from the outfalls or shallow contaminated groundwater discharge to the Willamette River.

(4/2/01 RGS/VCP) DEQ completed review of Preliminary Assessment report submitted by property owner. Results of review pending EPA review and concurrence.

(12/23/02 RGS/VCP) EPA provided comments on DEQ's preliminary findings in August 2002. DEQ responded to EPA in October 2002. Review pending.

(6/08/04 RGS/LWS) DEQ has determined that the site is not likely a current source of contamination to the river and that the site is a low priority for further action. EPA agreed that “this site does not appear to be a current source of contamination to the river” in a letter dated May 18, 2004.

(12/15/05 JMW/SAP) Comment period for site listing on CRL/INV ended November 21, 2005. No comments were received.

(8/22/06 CH/ICP) Kittridge project involves providing oversight for cleanup at a former acetylene plant site near the Willamette River.

(3/20/07 CWH/ICP) DEQ has reviewed several reports summarizing site conditions and a Feasibility Study that describes remedial alternatives for the site (see Data Sources field). Based on our review of these records DEQ NWR selected a remedy, codified in the Record of Decision (1/25/07), that stipulates the following -

Selected remedial action objectives are:

• Maintain the existing cap of the site, which consists of warehouse buildings and asphalted parking area;
• Establish a restriction for all uses of groundwater below the site;
• Establish institutional controls via a site-specific contaminated soil and groundwater management plan to guide site activities as they relate to capped contamination areas;
• Record an Easement and Equitable Servitude with the property deed to establish site hazards, inspection and maintenance of the soil cap, and reporting to DEQ.

The proposed engineering and institution control site use restrictions described in the Record of Decision were placed in an Easement and Equitable Servitude (E&ES) that was signed by DEQ and Schnitzer Investment Corp. in February 2007.

The E&ES was recorded with Multnomah County on March 13, 2007 (#2007-043680). Since an E&ES was the selected remedial action, the site will remain on the Confirmed Release List (CRL) and Inventory.
Data Sources: 1) Portland Harbor Sediment Investigation Report, prepared by Roy F. Weston, Inc. for USEPA, May 1998. 2) DEQ LUST Database. 3) DEQ HWIMSy Hazardous Waste Generator Database. 4) DEQ SPINS Spill Database. 5) MetroScan Property Records, Multnomah County, Oregon. 6) CH2M Hill, 1996, Asset Recovery Groundwater Assessment. 7) CH2M Hill, 1996, Remedial Actions Completed at the former Asset Recovery Site. 8) CH2M Hill, 1995, Environmental Site Assessment for the Asset Recovery Site. 9) The Earth Technology Corporation (ETC), 1990, Report on an Environmental Assessment of Property located at 4959 NW Front Avenue, Portland, Oregon, for Northwest Airgas, Inc. 10) Preliminary Assessment” prepared by Bridgewater Group, Inc., dated April 5, 2000.

Substance Contamination Information

Substance Media Contaminated Concentration Level Date Recorded
ACETONE Groundwater 17.00 ppm 7/1/1990
ACETONE Soil 110.00 ppm 5/22/1996
ARSENIC Groundwater 0.35 ppm 7/1/1990
ARSENIC Soil 28.00 ppm 4/3/1996
CADMIUM Groundwater 0.06 ppm 7/1/1990
LEAD Groundwater 0.40 ppm 7/1/1990
LEAD Soil 110.00 ppm 4/3/1996
MERCURY Groundwater 0.08 ppm 7/1/1990
METHYL-2-PENTANONE,4- Groundwater 4.60 ppm 7/1/1990
PCBs Soil 9.60 ppm 1/24/1991
TOTAL PETROLEUM HYDROCARBONS (TPH) Groundwater 2800 ppm - ETC, 1991. 8/30/1990
ZINC Groundwater 2.20 ppm 7/1/1990

Investigative, Remedial and Administrative Actions

Action Start Date Compl. Date Resp. Staff Lead Pgm
No Further Action (Conditional)  (Primary Action) 03/13/2007 03/13/2007 Charles Harman ICP
View Full Report Showing Action History

Site Environmental Controls

Control Description Begin Date End Date Last Reviewed By Last Review Date
Easement Equitable Servitude 03/13/2007   C. Harman
  Comments: An Easement and Equitable Servitude (E&ES) was recorded with Multnomah County on March 13, 2007 (#2007-043680). It stipulates the following: Soils and groundwater on the site are contaminated with petroleum hydrocarbons and metals, and may have high pH. In a January 25, 2007 memorandum, DEQ selected a remedy to address presumed soil contamination at the site in a Record of Decision, which requires the following remedial actions: • Worker notification and training program for portions of the Property. • Inspection and maintenance of the existing site cap consisting of buildings, pavement, and landscape fill. • Prohibition of use of shallow groundwater beneath the Property. • Maintaining industrial or commercial land use zoning classifications on the Property.

Key to Certain Acronyms and Terms in this Report:

  • CERCLIS No.: The U.S. EPA's Hazardous Waste Site identification number, shown only if EPA has been involved at the site.
  • Region: DEQ divides the state into three regions, Eastern, Northwest, and Western; the regional office shown is responsible for site investigation/cleanup.
  • NPL Site: Is this site on EPA's National Priority List (i.e., a federal Superfund site)? (Y/N).
  • Orphan Site: Has DEQ's Orphan Program been active at this site? (Y/N). The Orphan Program uses state funds to clean up high-priority sites where owners and operators responsible for the contamination are absent, or are unable or unwilling to use their own resources for cleanup.
  • Study Area: Is this site a Study Area? (Y/N). Study Areas are groupings of individual ECSI sites that may be contributing to a larger, area-wide problem. ECSI assigns unique Site ID numbers to both individual sites and to Study Areas.
  • Pathways: A description of human or environmental resources that site contamination could affect.
  • Lead Pgm: This column refers to the Cleanup Program affiliation of the DEQ employee responsible for the action shown. SAS or SAP = Site Assessment; VCS or VCP = Voluntary Cleanup; ICP = Independent Cleanup; SRS or SRP = Site Response (enforcement cleanup); ORP = Orphan Program.

You may be able to obtain more information about this site by contacting Charles Harman at the Northwest regional office or via email at If this does not work, you may contact Gil Wistar at (503) 229-5512, or via email at or contact the Northwest regional office.

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For more information about ECSI call Gil Wistar at 503-229-5512 or email.

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