Accession Number:

ADA230432

Title:

Post Remedial Action Report, Lansdowne Radioactive Residence Complex, Dismantlement/Removal Project. Volume 4. Radiological Oversight and Certification

Descriptive Note:

Report for the period 1 Aug 1988-24 Jul 1989

Corporate Author:

ARGONNE NATIONAL LAB IL ENVIRONMENTAL SAFETY AND HEALTH DEPT

Personal Author(s):

Report Date:

1990-06-01

Pagination or Media Count:

353.0

Abstract:

During the period 1924-1944, a Univ. of Pennsylvania physics professor was engaged in the commercial production of radium sources for medical use. As a result of the radium enrichment activities, the entire residence, the surrounding land, and the adjoining residence became contaminated. In August 1985, this site was officially added to USEPAs list of hazardous sites targeted for cleanup Superfund. Onsite radiological overview was provided to the U.S. Army Corps of Engineers for the remediation activities. The oversight included radiological surveying, laundrywaste water sampling, air sampling and logging of contamination in the soil. Additional oversight responsibility included verification that the soil remaining on the site, adjacent to the site and under the sewer line, as well as backfill soil were below the cleanup criterion of 5 pCig above the natural Ra-226 background level of 1.5 pCig. The exposure rate measurements from the restored site ranged from 8 to 11 micro-Rh, typical of background levels in this area. This report provides documentation that the cleanup criterion of 5 pCig of Ra-226 above background has been met.

Subject Categories:

  • Radiation Pollution and Control

Distribution Statement:

APPROVED FOR PUBLIC RELEASE