Idaho National Laboratory (IN

Special Exposure Cohort (SEC

Evaluation Report (Rev. 1)
 

Updated SEC Class Definition
 

SEC00219
 

Timothy D. Taulbee, PhD, CHP

Research Health Scientist

National Institute for Occupational Safety and Health

Division of Compensation Analysis and S
Overview

 Background NIOSH Additional Research

 Review of NOCTS Claims Data Gaps Dosimetry Report and Monthly Report Com

 Review of Dosimetry Procedures

 Recommended Adjustment to SEC Class De

 INL and ANL‐W Activity Proposed Timeline

Division of Compensation Analysis and S
Background on Dosimetry at IN

 One badge one area methodology

 If a worker who routinely worked at Materials Te

(MTR) went to the Chemical Processing Plant (CPtheir MTR badge at MTR security checkpoint and 

temporary badge at CPP

 Visitors picked up temporary badges upon entran

 Dosimetry Records

 CPP Main Badge Reports (Main codes 5, 53, 55)

 CPP Temporary Badge Reports

 CPP Construction (CX) Reports (codes 11, 113, 11

Division of Compensation Analysis and S
Example of CPP Dosimeter Badge Repo

Area Code 05 

Contractor Codes

 Phillips

Petroleum

 Atomic Energy

Commission(AEC)

 Naval Reactor

Facility (NRF)

 Subcontractors

 FC Torkelson

Division of Compensation Analysis and S
Example of CPP Temporary Dosimeter Bad

 News Reporter

 Phillips employees

 other areas

 AEC Personnel Construction Trades

 H.S. Wright FC Torkelson

 Vendors

 Coca Cola

Division of Compensation Analysis and S
• Example of CPP Construction (CX) Dosi

Badge Report Area Code 11 = CPP Cons

Contractor Codes

NOC

Division of Compensation Analysis and S
Background Summary

 Multiple types of workers were badged upo

to CPP

 A CPP worker’s dosimetry could appear on a

of several reports

 CPP Main Dosimetry Report (05, 053, 055) CPP Temporary Dosimetry Report CPP Construction (CX) Dosimetry Report (11

115)

Division of Compensation Analysis and S
Review of NOCTS Claims

• 1753 INL claims as of April 2015

• Reviewed to determine whether employment per

within the proposed SEC

• 872 claims (49.7%) did not work during the SEC period

• 881 INL Claims with employment during SEC Period

• Reviewed Computer Assisted Telephone Interview 

Dose Reconstruction Report, and DOE file of the 8

claims with employment during SEC to identify CP

• 320 claims (36.3%) worked at CPP during SEC period AND had 

identifiable CPP badge of some kind (regular, temp, visitor, or 

• 529 claims (60.1%) had no indication of work at CPP• 32 (3.6%) claims need follow‐up to determine status

Division of Compensation Analysis and S
Why the need for follow‐up

 For Dose Reconstruction efficiency, DOE provided on

summary information IF:

 Lifetime External Dose < 500mrem OR > 50 rem

 Annual summaries do not provide location information

 CPP Construction Trades (CX Dosimetry Printouts)

 DOE did not send NIOSH these dosimetry reports when we 

CPP dosimetry records. This was a miscommunication bet

and DOE.

 NIOSH did not identify that this subgroup was missing unti

22nd during our evaluation.

 NIOSH has since requested these CX reports. DOE is worki

them.

Division of Compensation Analysis and S
Review of CPP Dosimetry for Ga

 CPP Dosimetry Reports (1963‐1974)

 3 months currently missing – Will request from D

 January 1970

 December 1970

 December 1971

 Temporary Badge Reports (1959‐1976)

 None appear to be missing. NIOSH has temporar

reports for every month between 1959 and 1976

 CX Dosimetry Reports

 Requested but not yet received from DOE

Division of Compensation Analysis and S
Comparisons of Monthly Health

Physics Reports vs CPP Dosimet

 Reviewed the monthly Health Physics reports to

determine how many dosimeters the site report

processed versus how many dosimeters we foun

dosimetry printouts.

 Goal is that if the site indicated that they proces

dosimeter badges in a month and we have 500

dosimeter results then we can be fairly sure we h

of the results.

 Reviewed 1963 through March 1970 found very 

agreement between monthly reports and dosim

printouts.

Division of Compensation Analysis and S
CPP Main Contractor ‐ Annual

Comparison

Division of Compensation Analysis and S
Review of INL Dosimetry Proced

 One badge one area methodology

 If a worker who routinely worked at MTR went to 

they left their MTR badge at MTR security checkp

and picked up a Temporary Badge at CPP.

 In October 1969, the INL site began to explore

methods to reduce the number of temporary ba

being assigned.

Division of Compensation Analysis and S
Review of INL Dosimetry Proced

 In December 1969 INL conducted a thorough

evaluation of the number of regular badges and

number of temporary badges by area and byoccupation (operations, trades, etc...) (Site Resea

Database (SRDB)# 143334 p.28)

 Recommendation was to issue a single dosimete

badge that employees could wear in all areas ins

of getting a new temporary badge for each area.

 New One Badge Multiple Area methodology

implemented in March 1970

Division of Compensation Analysis and S
Review of INL Dosimetry Proced

 ANC and AEC

personnel who

worked in TRA, CPP,

TSF, and PBF could

wear their dosimeterthat was issued in

another facility into

CPP

 Continued until Dec.

1974 when badgingreturned to OneBadge One Area 

Division of Compensation Analysis and S
Implications of One Badge Mult

Area methodology

 Any monitored worker at INL could physically en

CPP and conduct their work.

 This change eliminates our ability to segregate a

identify workers by work areas based on dosime

records.

 This change necessitates including all monitored 

workers in the SEC class during that time period 

to the potential for any monitored worker to hav

entered the CPP and be internally exposed to

actinides that cannot be reconstructed.

Division of Compensation Analysis and S
SEC Class Identification

 January 1963 through February 1970

 One Badge One Area methodology CPP Dosimetry can be used as originally propo

 March 1970 through December 1974

 One Badge Multiple Area methodology All monitored workers at INL need to be includ

the SEC class due to the potential for internal

exposure at CPP

Division of Compensation Analysis and S
Revised SEC Class Definition

All employees of the Department of Energy, its predece

agencies, and their contractors and subcontractors wh

at the Idaho National Laboratory (INL) in Scoville, Idaho

who were monitored for external radiation at the IdahChemical Processing Plant (CPP) (e.g., at least one film 

TLD dosimeter from CPP) between January 1, 1963 and

February 28, 1970; or (b) who were monitored for exte

radiation at INL (e.g., at least one film badge or TLD do

between March 1, 1970 and December 31, 1974, for a 

of work days aggregating at least 250 work days, occur

either solely under this employment, or in combination work days within the parameters established for one o

other classes of employees in the Special Exposure Coh

Division of Compensation Analysis and S
Idaho SEC Activities – Proposed Tim

 ANL‐W SEC Petition (SEC00224) on schedule to 

delivered to the ABRWH in mid to late October 

 Goal is 30 days prior to November Board meeti

 Begin work on reserved sections of INL SEC (SE

(Evaluation Report Addendum) in mid to late O

 October & November 2015 ‐ Addendum data c

and interviews if possible and needed

 February 2016 ‐ SEC Evaluation Report Addend

petitioners and ABRWH

 March 2016 ‐ Present SEC Evaluation Report Ad

to ABRWH

Division of Compensation Analysis and S
Idaho SEC Activities – Proposed Tim

 March 2016 work with the ABRWH’s INL Workg

and Sanford Cohen and Associates (SC&A) to refindings, issues, and concerns with:

 INL SEC00219 Evaluation Report

 ANL‐W SEC00224 Evaluation Report

 INL SEC00219 Evaluation Report Addendum

 March 2016 begin research for CPP for the pos

time period

Division of Compensation Analysis and S
Questions?

Division of Compensation Analysis and S