Tenth Street Dump/Junk Yard Superfund Site

• Location: Oklahoma City, Oklahoma County, Oklahoma
• Township and Range: Section 31, Township 12N, Range 2W
• Latitude/Longitude: 35.47862217, -97.45365167
• Site Type: Salvage/Junk Yard
• Area: 0.005 square miles/3.5 acres
• National Priorities List: Final Listing Date - July 22, 1987; Deletion Date - November 21, 2000
• Current Status: Cleanup complete

• Cleanup Oversight Agencies: EPA, DEQ, and USACE
• Lead Agency: DEQ
• Office: DEQ, Land Protection Division, (405) 702-5100
• DEQ Site Project Manager: Steven Gunnels, (405) 702-5173
• DEQ Press Contact: Skylar McElhaney, (405) 702-7167

The Tenth Street Site formerly operated as a municipal landfill between 1951 and 1954.  No activity at the site was noted between 1954 and 1959; however, in 1959, Mr. Raymond Cobb leased the site from Mr. Sullivan Scott and used the site as a salvage yard, accepting materials such as tires, solvents, and transformers.  Fluids from the transformers contained harmful Polychlorinated Biphenyls (PCBs).  The fluids were drained from the transformers, then transferred to barrels and sold.  During the recovery process, large quantities of oil were spilled onto the ground.  Mr. Cobb continued this operation until his death in 1979, when Mr. Rolling Fulbright began operating the site as Deadeye's Salvage Yard.  The Tenth Street Site is currently an area of mixed residential and industrial land use and is surrounded on two sides by active automobile salvage yards.

After sampling occurred in the mid-1980s, EPA found very high concentrations of PCBs in the soil.  The initial remediation plan consisted of:

• Removal and disposal of the electrical equipment and drums containing hazardous substances and PCBs
• Decontamination and relocation of automobiles and other salvage material
• Consolidation of contaminated soils to the center of the site
• Grading of the site for effective drainage
• Installation of the synthetic cover and clay cap
• Installation of a security fence around the site

Cleanup is complete and the site is in the operation and maintenance phase.  The landfill cap is mowed several times each year, the perimeter fencing is routinely checked, and the site is monitored by DEQ to ensure that the cap remains intact.

In 1990, the Environmental Protection Agency indicated industrial land usage for this site.  The site is owned by a private land owner and offers restricted access, due to a security fence around the perimeter.  A deed notice also acts as an institutional control to restrict use of the land and minimze potential exposure to contaminants.

• Sources of Contamination: Salvage yard scraps, waste tires, and transformers
• Contaminants of Concern: Polychlorinated Biphenyls (PCBs)
• Media Affected: Surface and subsurface soils
• Surface Water Impacted:  No Impact on surface water
• Groundwater Impacted: The aquifer is not contaminated with PCBs, meets primary drinking water standards, and does not exceed 10,000 parts per million (ppm) total dissolved solids.