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Incineration at the Coal Creek Superfund Site, Chehalis, Washington

Site Name:

Coal Creek Superfund Site

Location:

Chehalis, Washington

Period of
Operation:

January 1994 to May 1994

Cleanup
Type:

Remedial action

Vendor:

Matthew Beatty
Roy F. Weston, Inc.
1 Weston Way West
Chester, PA 19380-1499
610-692-3030

Technology:
On-Site Incineration
- Soil screened prior to being fed to incinerator
- Incineration system consisting of a rotary kiln and a secondary combustion chamber (SCC)
- SCC system temperature of 2,100° F; gas from SCC cooled by water sprays before being sent through air pollution control system
- Process water was treated by carbon filtration system then discharged on-site

Cleanup Authority:
CERCLA
- ROD signed October 1990
- Consent Decree entered 1992
- RP-lead with EPA oversight

SIC Code:
4953 (Refuse Systems)		Point of Contact:
Bob Kievit
U.S. EPA Region 10
1200 Sixth Avenue
Seattle, WA 98101
360-753-9014

Contaminants:
Polychlorinated biphenyls and lead. Also other metals, including:
- lead
- copper
- barium
- mercury
- cadmium
- zinc

Waste Source:
Disposal areas - oil containing PCBs

Type/Quantity of Media Treated:
Soil (9,715 tons)

Purpose/Significance of Application:
Because of previous performance, and because it had a TSCA permit, the incinerator was allowed to demonstrate DRE compliance without spiking

Regulatory Requirements/Cleanup Goals:
Destruction and Removal Efficiency (DRE) of 99.9999% for PCBs as required by Toxic Substances Control Act (TSCA) regulations in 40 CFR part 761

Results:
Emissions and performance data indicated that all DRE and emission standards were met

Description:
Between 1949 and 1983, the Coal Creek site was used for scrapping, salvaging, and repairing electrical equipment. During this time, oil containing PCBs was drained on to the ground.

In October 1990, a Record of Decision (ROD) was signed, specifying excavation and on-site incineration of soil with greater than 50 mg/kg PCBs. In 1992, the responsible parties (RP) entered into a Consent Decree with EPA, agreeing to implement the remedial action described by the ROD.

Remedial Action began in January 1994. The incineration system consisted of a feed system, a rotary kiln, a secondary combustion chamber (SCC), and an air pollution control system (APCS). The soil was screened before being fed to the incinerator. Over a 5-month period, the incinerator processed approximately 9,700 tons of soil. Treatment performance and emissions data collected during this application indicated that all performance standards and emissions requirements were met.

The actual cost for remediation using the incineration system was approximately $8,100,000.