EPA Fact Sheet May 1992
                     
                        ABB Plant Cleanup Continues
                           Bloomington,lndiana

Background

On May 3, 1989, the United States Environmental Protection Agency (USEPA)
issued an Administrative Order to Westinghouse Electric Corporation, 300
North Curry Pike, Bloomington, Indiana. The order required Westinghouse
to sample the grounds adjacent to the production plant to determine the extent 
of polychlorinated biphenyl (PCB) contamination and to develop a plan to 
remove the contamination. Initial sampling identified four contaminated areas 
at the plant property and two contaminated areas outside the plant property 
(See USEPA October 1991 ABB Plant Excavation Fact Sheet).

Additional sampling identified three more contaminated areas (See Site 
Features Map):

  Resource Conservation and Recovery Act (RCRA) Pad

  Archery Field

  Archery Field Drainage Ditch

These three additional areas have been sampled and were found to contain PCBs. 
They will be included as part of the excavation. The areas will be analyzed 
and excavated until PCB concentrations are below 10 parts per million (PPM). 
Materials excavated from each area will be stored in the on-site Temporary 
Storage Facility (TSF) currently under construction. The site work began in 
December, 1991 and will be completed by late 1992.

Clearing and Grubbing

In preparation for excavation of hazardous materials, the PCB-contaminated 
areas were cleared of noncontaminated bushes, brush, trees and other 
vegetation. This material is being stockpiled on-site.

Access Roads

There are two types of on-site access roads, longterm and temporary. The 
long-term access road leads to the TSF from North Curry Pike. It was 
constructed using some of the plant's existing north parking lot and an access 
point was constructed from North Curry Pike. The road has been constructed and 
graded and will be asphalted once the excavation is complete.

On-Site Temporary Storage Facility (TSF)

The TSF area has been cleared and grubbed with all vegetation stored in an 
on-site non-hazardous waste pile. Five pairs of monitoring wells were
installed to monitor the first aquifer underlying the TSF. The TSF has been 
graded and bermed. A leachate collection system, a leak detection system, and 
two 60 mil high density polyethylene (HDPE) liners have been installed on the 
compacted clay bed (see figures on this and the next page). During routine 
placement of excavated materials into the TSF, a cover will be used to ensure 
that excavated materials do not become-airborne.

Water Treatment Facility

Potentially contaminated water encountered during the excavation will be 
collected and stored in above ground holding pools. If the water contains 
contaminants at levels that exceed National Pollutant Discharge Elimination 
System (NPDES) values*, it will be treated at an on-site water treatment 
facility currently under construction. Once the treated water complies with 
NPDES values, it will be discharged to the local Publicly Owned Treatment 
Works (POTVV), Dillman Road Facility. If it does not meet NPDES values, it 
will be treated again until those values are met.

The water treatment facility will consist of three influent holding pools and 
six effluent holding pools. All pools will be constructed above ground with 
appropriate liners. For removal of residual suspended solids, a mixed-media 
filtration unit packed with sand and pea gravel will be used. For removal of 
organic compounds, a granular activatedcarbon adsorption unit will be used.

Air Monitoring

During on-site handling and excavation of hazardous materials, miniature
real-time aerosol monitoring (MINIRAM) devices will be used to detect
airborne particulates. MINIRAMs will provide short-term measurement of
particulates to assess airborne PCB concentrations. High volume air samplers 
(HIVOL) will be used to provide direct measurements of airborne PCBs. HIVOLs 
will be placed at each of the excavated areas, at the mobile home park area 
adjacent to the plant, and around the perimeter of the TSF.

Next Steps

Once the site preparatory work is completed, and the TSF is constructed, the 
excavation will begin. There will be two crews working at two areas that will 
be excavated at the same time. The proposed sequence for excavation is:

         North Drainage Ditch and Archery Field

         Ellettsville Drainage Ditch and South Retention Pond

         Mobile Home Park Drainage Area and RCRA Pad

After completion of these areas, the remaining areas will be excavated as
follows:

         South Drainage Ditch

         East Retention Pond

         Archery Field Drainage Ditch

Once the excavation is completed for each area, the PCB-contaminated material 
will be transported to the TSF. The RCRA hazardous materials found in the 
North Drainage Ditch soils will be transported offsite for disposal. U.S. EPA 
will consider alternatives for the disposal of all excavated PCB contaminated 
soils stored in the TSF through an Engineering Evaluation/Cost Analysis 
(EE/CA).

* The following compounds will have established limits for water treatment: 
   Tetrachloroethene (PCE), Trichloroethene (TCEJ, Zinc (Zn), and
   Polychlorinated Biphenyls (PCBs).

Glossary

     60 mil liner: A geomembrane composed of a high-density polyethylene
       material that is 60 mils thick (1 mil=1/1000 inch).

     High Volume Air Sampler (HIVOL): An air sampling device which pulls
       through a large volume of air and records it. HIVOLs collect the
       contaminants in a polyurethane foam (PUF) device. An EPA approved lab 
       analyzes the amount of contaminants collected in the PUF per unit 
       volume of air. The unit of measurement for the HIVOL is expressed in 
       nanograms of PCBs per cubic meter of air.

     Leachate: A liquid that results from water collecting contaminants as it
       trickles through waste containing material.

     Leachate Collection System: A system that gathers leachate and pumps it 
       to the surface for treatment.

     Miniature Real-lime Aerosol Monitor (MINIRAM): An ultra-compact personal- 
       size airborne particulate monitor. The unit of measurement for the 
       MINIRAM is expressed in milligrams of particulates per cubic meter of 
       air.

     National Pollutant Discharge Eliminaffon System (NPDES): A provision of
       the Clean Water Act which prohibits discharge of pollutants into waters
       of the United States unless a special permit is issued by U.S. EPA, a
       state, or (where delegated) a tribal government on an Indian 
       reservation.

     Particulates: Fine, liquid or solid particles such as dust, smoke, mist,
       fumes, or smog, found in air or emissions.

     Publicly Owned Treatment Works (POIWV):  A waste-treatment works owned by
       a state, unit of local government, or Indian tribe, usually designed to
       treat domestic wastewaters.

     Resource Conservaffon and Recovery Act (RCRA): The federal law that
       regulates the treatment, storage, and disposal of hazardous wastes.

     RCRA Pad: A pad used to store hazardous materials.

This document scanned by COPA for the BBS.