Merit Oil/Fuel Processors Summary of Remedial Investigation and - - PowerPoint PPT Presentation

Merit Oil/Fuel Processors

Summary of Remedial Investigation and Proposed Remedial Action MARK PUGH, DEQ Project Manager 503 229-5587 Pugh.Mark@deq.state.or.us

Merit Oil/Fuel Processors

Overview

• Site Description and Operations
• Wetlands
• Historical Operations and Releases
• Areas of Concern
• Site Investigations and Findings
• Proposed Remedial Action

Summary of Remedial Investigation and Proposed Remedial Action

Merit Oil/Fuel Processors

Merit Oil/Fuel Processors

Merit Oil/Fuel Processors

Current Site Operations

• Used Oil Reclamation and Recycling

This permit authorizes the facility to accept the following non- hazardous wastes for disposal, recycling, treatment, and/or energy recovery;

– Petroleum-contaminated soils; – Used oils; – Oily solids; – Used oil filters; – Transformer oils/polychlorinated biphenyl (PCB) oils (<50 ppm); Spent antifreeze (ethylene glycol or propylene glycol) if managed separately from used oil

• r managed in non-hazardous oil mixtures

Merit Oil/Fuel Processors

Current Site Operations (Cont’d)

• Used Oil Reclamation and Recycling

This permit authorizes the facility to accept the following non- hazardous wastes for disposal, recycling, treatment, and/or energy recovery;

– Unused/spent fuel products; – Asphalt/asphalt emulsions; – Oily wastewaters; – RCRA defined commercial chemical products (Reference: 40 CFR 261.33); and – Fats, oils, and grease (FOGs).

Smith-Bybee Lake

http://www.portlandmaps.com

Merit Oil/Fuel Processors

Historical Site Operations

• Wood Working 1957-1976
• Used Oil and Solvent Recovery/Recycling 1976-

1980 (Environmental Science and Service) 1989 Fire (petroleum, solvents)

• Merit Oil/FPI 1980-Present
• Tire Recycling (Pyrolysis) 1983-1989 (zinc)
• Foundry Sand Recycling 1986-1989 Fire (lead,

copper, zinc)

• Fill Placement-Panhandle Area 1981-1984

(Aluminum Dross, Foundry Sands)

Merit Oil/Fuel Processors

Documented Releases

• January 1985
• 4000-6000 gallons used oil from oil-water

separator; Sheen in Smith Lake-1/4 mile x 1/8 mile

• Cleanup conducted, poor documentation
• Majority of free oil, impacted soil and

vegetation removed; replanted canary reed grass

• February 1985

Release of Solvent- relatively small scale

Merit Oil/Fuel Processors

Documented Releases (Cont;’d)

• July 1986
• Up to 3,000 gallons bunker oil from oil-water

separator; contained within drainage and largely recovered; did not impact Smith Lake

• Impacted soil removed per DEQ inspection
• Discharge pipe capped in 1986 and facility

connected to City sanitary sewer

• March 1987
• Release of ~100 gallons of petroleum

liquid from beneath tire pile to wetlands.

• Cleanup completed per DEQ records.

Merit Oil/Fuel Processors

• Plant Area (tanks, piping, main sump)
• Carbon black depositional area (tire gasification)
• Former waste water detention pond
• Solvent Still Area
• Foundry Sand Recycling Area
• Panhandle Area Fill and Adjacent Wetlands
• Tire gasification area

Areas of Concern

Merit Oil/Fuel Processors

Historical Investigations

• EPA 1990 Preliminary Assessment
• DEQ, 1992, hazardous waste

compliance inspection

• EPA, 2000, 2002 Expanded Site

Inspection

• Merit Oil/Fuel Processors RI, 1996;

2003 to present

Historical Sample Locations

Merit Oil/Fuel Processors Investigations

Investigation Findings

SITE UPLAND

• COCs include petroleum and related constituents, metals,

volatile organic compounds (VOCs)

• Contaminant concentrations above human health risk based

concentrations were detected at a low frequency

• Direct exposure pathways not currently complete (site

buildings, structures, pavement)

• Free-phase heavy oil range petroleum present in one well-

subject of ongoing product recovery; not extensive.

• Site Conditions Stable; No additional investigation needed

unless site conditions change

• Groundwater Monitoring to Continue

Merit Oil/Fuel Processors Investigations

Investigation Findings (cont’d) PANHANDLE AND WETLANDS

• Panhandle area contains aluminum dross (caustic pH) and

localized foundry sands

• Panhandle soil has eroded and sloughed into wetlands
• Ecological hotspot levels (PEC) of lead and zinc, and to a lesser

extent, arsenic and chromium, detected in soil and wetland sediments

• Groundwater impacted metals (e.g., pH, lead, manganese,

fluoride)

• Surface water minimally impacted (except for fluoride), and

does not appear linked to shallow groundwater

• Flouride probably related to erosion of dross into wetland

Merit Oil/Fuel Processors Proposed Remedial Action

Remedial Action Objectives

• Mitigate Ecological Exposure to Wetland Sediment
• Sediment Dwelling Organisms/Birds/Mammals
• Prevent Further Leaching of Foundry Sand and

Aluminum Dross to Groundwater

• Prevent Further Erosion of Panhandle Materials into

Surface Water

• Stormwater Controls to Prevent Recontamination

Merit Oil/Fuel Processors Proposed Remedial Action

Consolidation and Capping

• Consolidation of surficial (upper 1-foot)

contaminated wetland sediments onto panhandle

• Capping removal areas with clean fill
• Installation of impermeable cap to eliminate further

leaching of panhandle dross and foundry sands

• Panhandle stabilization and re-vegetation
• Stormwater management
• Monitoring

Merit Oil/Fuel Processors Proposed Remedial Action

Schedule

• DEQ Completes Record of Decision-

September 2010

• Public Comment (1 month-Dec./Jan.)
• Remedial Design and Permitting-

Winter 2010-Spring 2011

• Remedy Implementation-Summer 2011
• Groundwater and Surface Water

Monitoring (>/= 3 years)

Merit Oil/Fuel Processors

QQQuestions?

MARK PUGH, DEQ Project Manager 503 229-5587 Pugh.Mark@deq.state.or.us