INL SEC Proposed Class - Update

SEC00219

Timothy D. Taulbee, PhD, CHP

Research Health Scientist

National Institute for Occupational Safety and Health

Division of Compensation Analysis and Support
Overview

 Background

 NIOSH Update

 Review of NOCTS Claims

 Data Gaps

 Dosimetry Report and Monthly Report Comparison

 Update on INL and ANL-W Activity Timeline

Division of Compensation Analysis and Support
Refresher on Dosimetry at INL

 One badge one area methodology

 If a worker who routinely worked at MTR went to CPP they 

left their MTR badge at MTR security checkpoint and picked 

up a Temporary Badge at CPP.

 Visitors picked up temporary badges upon entrance to CPP 

 Dosimetry Records

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

 CPP Temporary Badge Reports

 CPP Construction (CX) Reports (codes 11, 113, 115)

Division of Compensation Analysis and Support
Division of Compensation Analysis and Support

Example of CPP Dosimeter Badge Report

 Phillips 

Petroleum

 AEC

 NRF

 Subcontractors

 FC Torkelson

Contractor Codes

SRDB 143068

Area Code 05 = CPP
Division of Compensation Analysis and Support

Example of CPP Temporary Dosimeter Badge Report

 News Reporter

 Phillips employees

 other areas

 AEC Personnel

 Construction Trades

 H.S. Wright

 FC Torkelson

 Vendors

 CocaCola

SRDB 143042
Division of Compensation Analysis and Support

• Example of CPP Construction (CX) Dosimeter 

Badge Report Area Code 11 = CPP Construction (CX)

Contractor Codes

NOCTS 9852
Background Summary

 Multiple types of workers were badged upon entry 

to CPP

 A CPP worker’s dosimetry could appear on any one 

of several reports.

 CPP Main Dosimetry Report (05, 053, 055)

 CPP Temporary Dosimetry Report

 CPP Construction (CX) Dosimetry Report (11, 113, 

115)

Division of Compensation Analysis and Support
Review of 1753 INL Claims in NOCTS

• 1st Review to determine whether employment period was 

within the proposed SEC

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

• 881 INL Claims with employment during SEC Period 

• 2nd Review 881 INL Claims to determine if there is indication 

of work at CPP.

• Computer Assisted Telephone Interview CATI

• Dose Reconstruction Report

• DOE file 

Division of Compensation Analysis and Support
Follow-up Claims

• July - 32 claims needing follow-up

• August - After receipt and review of CX dosimetry file

• Identified 10 claims needing follow-up

• October - 7 (0.9%) claims need follow-up to determine status

• Down 3 from 10 earlier due to claim being part of the class from identified 

dosimetry in the 1970-1975 time period (i.e could have used other area 

badge for CPP work)

• Request for supplemental information on 7 claims sent to the site 

on October 5, 2015

• Request for supplemental information for the 11 additional claims 

SC&A identified was sent on October 13, 2015

• Total 18 of 881 claims (or 2%) are being followed

Division of Compensation Analysis and Support
Does NIOSH have all of the 

Dosimetry Data?

 Look for Data Gaps in dosimetry

 Compare number of dosimeters reported in 

monthly Health Physics reports vs. the 

number of people listed on the badge reports 

obtained from the site. 

Division of Compensation Analysis and Support

SRDB 125961
Review of CPP Dosimetry for Gaps

 CPP Dosimetry Reports (1963-1974)

 After follow-up only December 1970 is missing

 Note cycle end date was December 25, 1970

 Not significant since annual reports are available for 1970

 Single badge from any location from March through 

December 1970 is part of class. If annual summary is all 

that indicates dose, then should assume CPP exposure. 

 Checked dose totals for select workers and annual 

summary has the December dose. 

 Annual dose greater than sum of Jan-Nov totals

Division of Compensation Analysis and Support
Review of CPP Dosimetry for Gaps

 Temporary Badge Reports (1959-1976)

 None appear to be missing. NIOSH has temporary badge 

reports for every month between 1959 and 1976.

 CX Dosimetry Reports

 After follow-up in August, there are no gaps or 

missing data from the CX dosimetry reports. 

Division of Compensation Analysis and Support
Comparisons of Monthly Health 

Physics Reports vs CPP Dosimetry

 Goal is that if the site indicated that they processed 

500 dosimeter badges in a month and we have 500 

dosimeter results then we can be fairly sure we 

have all of the results.

 Reviewed 1963 through 1970 found very good 

agreement between monthly reports and dosimetry 

printouts.

Division of Compensation Analysis and Support

SRDB 125961
CPP Dosimetry Comparison

Division of Compensation Analysis and Support
CPP Dosimetry Comparison

Division of Compensation Analysis and Support
CPP TLD Dosimetry Comparison

Division of Compensation Analysis and Support
Comparison Statistics

Division of Compensation Analysis and Support

January 1963 –

November 1970

HP Monthly 

Reports

Dosimeter 

Printouts

Difference

CPP Prime Contractors 35870 36228 358

Construction Contractors (CX) 6956 7011 55

CPP TLD’s 3461 3484 23

Total 46287 46723 436

Average monthly difference for Prime Contractors is 3.5 dosimeters

Average monthly difference for Construction Contractors is 0.5 dosimeters
Summary

 Follow up between NIOSH and SC&A has been 

reduced to 18 of 881 claims or 2%, thus the current 

definition works for at least 98% of the claims. 

 No significant data gaps identified

 Good comparison between periodic reports and 

dosimetry data

Division of Compensation Analysis and Support
Proposed SEC Class Definition

All employees of the Department of Energy, its predecessor 

agencies, and their contractors and subcontractors who worked 

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

who were monitored for external radiation at the Idaho 

Chemical Processing Plant (CPP) (e.g., at least one film badge or 

TLD dosimeter from CPP) between January 1, 1963 and 

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

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

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

of work days aggregating at least 250 work days, occurring 

either solely under this employment, or in combination with 

work days within the parameters established for one or more 

other classes of employees in the Special Exposure Cohort.

Division of Compensation Analysis and Support
Update on Idaho SEC Activities 

 ANL-W SEC Petition (SEC00224) evaluation report is 

delayed until January / February 2016

 Discovery of early (1952) bioassay data (urine and fecal 

results) for ANL-W workers in the ANL-E dosimetry 

records.

 Follow-up requests for dosimetry and bioassay from 

both ANL-E and INL to sort out location and timeline of 

the records. 

 Received all of the requested follow-up records from 

the site on October 28, 2015 – currently evaluating

Division of Compensation Analysis and Support

SRDB 125961
Update on Idaho SEC Activities 

 While waiting on follow-up records for ANL-W, we 

began work on reserved sections of INL SEC 

(SEC00219) (Evaluation Report Addendum)

 First Data Capture was week of October 19th

 Second Data capture was week of November 2nd

 Need to conduct a couple of interviews and are hoping 

to add a couple of people to SC&A’s list

 February 2016 – Goal to have SEC Evaluation Report 

Addendum to petitioners and ABRWH

 March 2016 - Present SEC Evaluation Report 

Addendum to ABRWH.

Division of Compensation Analysis and Support

SRDB 125961
Idaho SEC Activities – Proposed Timeline

 March 2016 work with the ABRWH’s INL Workgroup 

and SC&A to resolve findings, issues, and concerns 

with:

 INL SEC00219 Evaluation Report

 ANL-W SEC00224 Evaluation Report

 INL SEC00219 Evaluation Report Addendum

Division of Compensation Analysis and Support

SRDB 125961
Questions?

Division of Compensation Analysis and Support