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 Summary of Remedial Investigation and Proposed Remedial Action Overview • Site Description and Operations • Wetlands • Historical Operations and Releases • Areas of Concern • Site Investigations and Findings • 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 or 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 Areas of Concern • 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
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
Recommend
More recommend
