Division of Compensation Analysis and 

Support 

Program Evaluation Report

Document Number: DCAS-PER-063 

Effective Date: 6/15/2015 

Revision No. 0

Aluminum Company of America – Pennsylvania (ALCOA-PN) Page 1 of 2

Author: Signature on file Dave Allen, HP Team LeaderDate: 6/15/2015 Supersedes: None

Approval: Signature on file Date: J.W. Neton, Associate Director for Science

 

6/15/2015 

 

RECORD OF ISSUE/REVISIONS

ISSUE EFFECTIVE REV. NO. DESCRIPTION

AUTHORIZATION DATE

DATE

New document to determine the effect of 

6/15/2015 6/15/2015 0 the revision to Appendix R of TBD-6000 

(ALCOA-PN) on previously completed 

claims.

 

1.0 Description 

Dose reconstructions for the claims from the Aluminum Company of America –

Pennsylvania (ALCOA-PN) are performed using Appendix R of Battelle-TBD-6000.

The appendix was originally issued (revision 0) on 4/30/2007. Revision 1 was issued on 

3/5/2014 to incorporate a revision to TBD-6000, as well as incorporating ORAUT-OTIB0070 and other changes. This PER (DCAS-PER-063) evaluates the effect of revision 1 

of Appendix R on all previously completed claims. 

2.0 Issue Evaluation 

Revision 1 to Appendix R results in an increase in assigned inhalation, ingestion and 

external photon dose during the operational period. In revision 0, internal and external 

doses did not change after 1955. The incorporation of OTIB-0070 in revision 1 causes

these doses to decline in each year of the residual period. Because of this, revision 1 

results in higher doses early in the residual period and lower doses in later years. Some 

doses are higher until 1970 while others are higher until 1980. One of the increases until 

1980 is ingestion intakes which would affect all claims with employment in the time 

frame. A search of previously completed claims indicate all claims with employment 

after 1980 also had employment prior to 1980 so the dates of employment do not exclude 

any claims from further review. Therefore additional detail of changes in the residual 

period are not necessary for this evaluation. 
Division of Compensation Analysis and 

Support

Program Evaluation Plan

Document Number: DCAS-PER-063

Effective Date: 6/15/2015 Revision No. 0 Page 2 of 2

3.0 Plan for Resolution or Corrective Action 

In order to evaluate the effect of revision 1 of the appendix on previously completed 

claims, a search was conducted for all completed claims that had a probability of 

causation (POC) of less than 50%. This search identified 44 claims with employment at 

ALCOA-PN. Two claims were completed using revision 1 of Appendix R and were 

removed from further evaluation. Five claims were completed using a complex wide 

overestimating method (ORUAT-OTIB-0004) resulting in a higher dose estimate than 

Appendix R. Those five were therefore removed from further evaluation under this PER. 

Before the evaluation of the 37 remaining claims could be completed, two more claims 

were returned to NIOSH and reworked using revision 1 of the appendix. 

A new dose estimate was performed for the remaining 35 claims using revision 1 of the 

appendix, as well as all applicable approved dose reconstruction methods. The resulting 

probability of causation (POC) was below 45% for 27 claims. The POC was greater than 

50% for seven claim. The remaining claim resulted in a POC between 45% and 50%. 

For that claim, IREP was run 30 times at 10,000 iterations per NIOSH procedures. The 

resulting POC remained below 50%. 

NIOSH will provide the Department of Labor with the list of all claims evaluated under 

this PER. Further, NIOSH will request the return of the seven claims that would now 

result in a POC greater than 50%.