OKLAHOMA REFINING CO. SUPERFUND SITE

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City: Cyril
County: Caddo
Site Type: Refinery
Area: 0.34 square miles / 220 acres
Township and Range: Section 18-19, Township 5 North, Range 9 West
Latitude: 34.89420200
Longitude: -98.19819117
National Priorities List: Final Listing Date - February 21, 1990
Cleanup Oversight Agencies: DEQ, EPA
Lead Agency: DEQ
Office: DEQ, Land Protection Division, (405)702-5100
DEQ Site Project Manager: Amber Brawdy, (405) 702-5133
DEQ Press Contact: Skylar McElhaney, (405)702-7167
Current Status: Cleanup underway

Land Use Restrictions: A deed notice is currently in place for the site, with restrictions on drilling new wells and digging in capped areas. The site is zoned for industrial redevelopment.

Regulatory Profile:
• Sources of Contamination: Leaking tanks, product lines, pits and surface impoundments
• Contaminants of Concern: Metals, VOCs (Volatile Organic Compounds), Petroleum, Organics, Aromatic Hydrocarbons
• Groundwater Impacted: Rush Springs Sandstone Aquifer
• Surface Water Impacted: Gladys Creek

Site History and Background: Operations at the Oklahoma Refining Company site began in 1920 by the Anderson Pritchard Company (APCO). The ORC site was operated as a refinery under several different owners until 1994. Refining processes that took place included crude distillation, vacuum distillation, catalyst cracking, alkylation, bimetallic reforming, and downstream processing. Solid waste from these processes was kept in on-site surface pits and wastewater was sent through an oil-water separator, followed by treatment in impoundments. The water was then discharged into Gladys Creek. Over many years of production, contaminants leaked into the soil, sediment, surface water and shallow groundwater beneath the site. These contaminants include heavy metals, VOCs, petroleum products and other hydrocarbons. Also, areas of low and high pH ground water have been noted at the ORC site.

Cleanup History: Cleanup of soil and sediments in the southern portion of the ORC site was completed in July of 1997. The remedy for contaminated soils included:
• Bioremediation of organic wastes: 93,000 cubic yards
•Neutralization of acidic waste: 16,000 cubic yards
• Stabilization of metal containing waste: 14,000 cubic yards
•Removal of asphaltic material: 38,000 cubic yards Two onsite landfills were built to contain site wastes. They were initially used as bio-treatment cells before final capping. On the northwestern part of the site, refinery structures, equipment, and chemicals were demolished and removed in August of 2003 by EPA Emergency Response Branch.

Cleanup Status: Cleanup of soil, pond sediment, and waste areas is complete on the southern portion of the site. A supplemental feasibility study has been completed to evaluate cleanup options for the remaining soil, sediment and light non-aqueous phase liquid contamination in the North area of the site. A proposed plan has been completed to present the cleanup options soil, sediment and light non-aqueous phase liquid contamination in the North area of the site. Site-wide ground water contamination will be addressed in a future decision document.

Did You Know? This refinery began in 1909 and was one of over 400 refineries that operated in the state at one time.

Completed Activities:

Document Type

Date Completed