Record of Decision (ROD)
ALLIED PLATING, INC
(Now off the NPL)Site Name: ALLIED PLATING, INC
Address: 8135 NE MLK AV, PORTLAND, OR 97211
EPA Region: 10
NPL Status: Deleted from the Final NPL
Proposed NPL Update No.: 06
Final NPL Update No.: 00
Federal Facility Flag: Not a Federal Facility
Federal Facility Docket: No
Ownership Indicator: Private
Incident Category: Manufacturing Plant
RCRA Facility ID: 1083
USGS Hydro Unit: 17090012
ROD ID ROD Date
1 EPA/ROD/R10-93/059 06/29/1993
EPA/ROD/R10-93/059
ROD Date: 06/29/1993
O&M Cost: n/a
Media: None
Contaminant: None
Keys: No Action Remedy.
The 12-acre Allied Plating site is a former chrome plating facility in Portland, Multnomah County, Oregon. The site can be divided into three areas, based on historical uses. These include an administrative and storage building; the layout area, which is occupied by a crane facility; and the low-lying impoundment area, which occupies the northern area of the site. Land use in the area is predominantly industrial, with a riparian (riverbank) area located to the north of the site. The site lies 1,000 feet south of the Columbia Slough, a shallow, steep sided, slow moving body of water that flows across the northern edge of Portland.
A single unconfined aquifer was identified beneath the site, which supplies ground water to upgradient facilities for irrigation and potato processing. Drinking water is supplied by the city of Portland and does not originate in the vicinity of the site. Prior to 1947, the site was vacant and most likely used as a pasture. In 1947, the site was leased for use as a wrecking yard, and, in 1957, was leased to Allied Plating. Allied Plating operated the site from 1957 until 1984, when onsite operations ceased.
Prior to 1969, wastewater from the facility was discharged to the swale leading into the slough. In 1969, when backfilling isolated the property, liquid wastes from the plating process were discharged onsite directly to a pond within the impoundment area. The metals in the plating wastewater precipitated out, forming a layer of plating waste at the bottom of the pond. Once onsite discharge ceased, the pond receded, leaving a dry area covered with plating waste. In 1978, as a result of the discharge of wastewater to the pond, the State required the installation ofan onsite wastewater treatment system and discharge and RCRA permits.
State studies in 1984 indicated that ground water in the vicinity of the site and soil in the impoundment area were contaminated with metals, including lead, nickel, and chromium. In 1992, EPA conducted a removal action at the impoundment area that involved excavating approximately 1,100 tons of soil and debris, with offsite stabilization and/or disposal; dewatering 70,000 gallons of pond water from the pond area, and disposing of 120 tons of the resultant filter cake; backfilling the pond and other areas within the impoundment area; and enacting a deed restrictions on the use of the shallow aquifer at the site.
During the RI, it was determined that site contamination was mainly limited to the layer of plating waste. Subsequently in 1992, EPA conducted a second removal action to transport the plating waste offsite. This ROD addresses the impoundment area as a final action. Since the potential risks to human health and the environment have been reduced to acceptable levels by the earlier removal action, there are no primary contaminants of concern affecting this site.
SELECTED REMEDIAL ACTION: The selected remedial for this site is no further action. The previous 1992 removal actions have reduced the health threats associated with site-related contaminants to acceptable levels. There are no costs associated with this action.
PERFORMANCE STANDARDS OR GOALS: Not Applicable.
INSTITUTIONAL CONTROLS: Not Applicable.
This Record of Decision is for No Further Action. The site has been remediated by a Removal Action (RA) which took place in October and November of 1992. The Removal Action addressed the threats posed by the site.
