This transcript of the Advisory Board on Radiation and Worker Health, Weldon Spring Work Group, has 

been reviewed for concerns under the Privacy Act (5 U.S.C. § 552a) and personally identifiable 

information has been redacted as necessary. The transcript, however, has not been reviewed and 

certified by the Chair of the Weldon Spring Work Group for accuracy at this time. The reader should be 

cautioned that this transcript is for information only and is subject to change.

1 

NEAL R. GROSS

COURT REPORTERS AND TRANSCRIBERS 

1323 RHODE ISLAND AVE., N.W. 

(202) 234-4433 WASHINGTON, D.C. 20005-3701 www.nealrgross.com 

U.S. DEPARTMENT OF HEALTH AND HUMAN SERVICES

CENTERS FOR DISEASE CONTROL

NATIONAL INSTITUTE FOR OCCUPATIONAL

SAFETY AND HEALTH 

+ + + + +

ADVISORY BOARD ON RADIATION AND

WORKER HEALTH 

+ + + + +

WORK GROUP ON WELDON SPRING

+ + + + +

THURSDAY

FEBRUARY 1, 2018

+ + + + +

The Work Group convened 

telephonically, at 2:00 p.m., Eastern Time, 

Richard Lemen, Chair, presiding.

PRESENT:

RICHARD LEMEN, Chair

R. WILLIAM FIELD, Member

PAUL L. ZIEMER, Member

ALSO PRESENT:

TED KATZ, Designated Federal Official

RON BUCHANAN, SC&A

DAVID HARRISON, ORAU Team 

STU HINNEFELD, DCAS

MARK ROLFES, DCAS
This transcript of the Advisory Board on Radiation and Worker Health, Weldon Spring Work Group, has 

been reviewed for concerns under the Privacy Act (5 U.S.C. § 552a) and personally identifiable 

information has been redacted as necessary. The transcript, however, has not been reviewed and 

certified by the Chair of the Weldon Spring Work Group for accuracy at this time. The reader should be 

cautioned that this transcript is for information only and is subject to change.

2 

NEAL R. GROSS

COURT REPORTERS AND TRANSCRIBERS 

1323 RHODE ISLAND AVE., N.W. 

(202) 234-4433 WASHINGTON, D.C. 20005-3701 www.nealrgross.com 

Contents

Call to order, Welcome, and Roll Call............. 3

Overview/update of Weldon Spring Plant's.......... 5

Site Profile review: 6 closed findings,.......... 5

22 open findings, 9 observations, matrices,....... 5

and BRS........................................... 5

Update/discussion of open Finding #24............ 10

(awaiting EU PER)................................ 10

Discussion of 21 open findings recommended....... 14

for closure (Findings 3 - 19, and Findings....... 14

25 - 28)......................................... 14

Discussion of nine observations that have........ 38

been resolved.................................... 38

Adjourn.......................................... 52
This transcript of the Advisory Board on Radiation and Worker Health, Weldon Spring Work Group, has 

been reviewed for concerns under the Privacy Act (5 U.S.C. § 552a) and personally identifiable 

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3 

NEAL R. GROSS

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P-R-O-C-E-E-D-I-N-G-S 

2:00 p.m.

Call to order, Welcome, and Roll Call 

MR. KATZ: Welcome, everyone, to the 

Advisory Board on Radiation and Worker Health. 

It's the Weldon Spring Work Group.

The agenda for today's meeting and the 

materials related to today's meeting are posted 

on the NIOSH website under this program, schedule 

of meetings, today's date. You can go there and 

pull up the agenda and all the materials that 

we'll be talking about. There's no presentations 

because there's no formal presentations being 

given, although there will be a lot of talk from 

the staff that have been doing the work on both 

sides of SC&A and DCAS.

I would just also ask, everyone, 

please, except for when you're addressing the 

group, keep your phones muted, because it will 

improve the quality of the sound for everybody. 

And you press *6 to mute your phone; *6 to take 
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your phone back off of mute, if you don't have a 

mute button.

Okay. So, we have a little bit of a 

change in the constitution of the Work Group. I 

should note that, too. Dr. Lemen is still our 

Chair, but we have Paul Ziemer, Dr. Ziemer, who 

will be joining the Work Group now. Bill Field 

actually joined it also sort of late in the 

process, but he's been with us for a couple of 

meetings. And Paul's with us now.

There are no conflicts of interest 

among the Board members. But, then, now I'll run 

through the staff, and please address conflict of 

interest as we do roll call. We have all three 

of the Board members.

(Roll call.)

And John Stiver sent me a note to say 

he wouldn't be doing this. So, I'm not sure there 

are any others from SC&A.

Okay. The last thing I will just note 

for everybody, Dr. Field, Bill has a commitment 
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for about 20 minutes, I think starting around 

2:00 p.m. Eastern time.

MEMBER FIELD: That's right.

MR. KATZ: And so, he may be leaving 

us for a brief period if we haven't finished at 

that point.

Okay. That's the preliminaries. 

Dick, it's your meeting, and I think Ron is ready 

to start with his piece.

CHAIR LEMEN: Okay. I think, Ron, 

you're going to talk about six -- we have 22 open 

findings and nine observation matrices. And I 

guess you'll introduce your talk and throw in the 

rest that I didn't talk about now.

Overview/update of Weldon Spring Plant's 

Site Profile review: 6 closed findings, 

22 open findings, 9 observations, matrices, 

and BRS 

DR. BUCHANAN: Okay. Yes. I would 

like to give a little introduction before we get 

started because it's been a long time since this 
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Work Group has met formally, it's about six 

years. And so, I wanted to give you just a 

refresh your memory because I know it's been a 

while since you've probably looked over this 

material. So, I'll give a very brief 

introduction and, then, we'll go on to the 

particular findings.

Weldon Springs is a 220-acre site near 

St. Louis, Missouri, and it processed uranium 

compounds during the period 1957 to 1966. It was 

put in standby from 1967 to 1985 and had 

maintenance and monitoring only. Went into the 

remediation period 1985 to 2002, at which time 

all the radioactive material was shipped offsite 

and low-level waste was buried, some of it in 

concrete slurry at the main site, and had a large 

rock pile put over it. It looks like a big rock 

pyramid at this time. And, of course, they have 

onsite and offsite monitoring going on.

Now the initial TBDs were issued in 

2005, TBD-1 through -6, Rev 0s. And those have 
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been reviewed for concerns under the Privacy Act (5 U.S.C. § 552a) and personally identifiable 

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changed through the years. We've got all 

currently as Rev 1 all the way up to Rev 4, and 

the dates range from 2013 to September of 2017. 

So, you can see it's fairly recent editions on 

some of these TBDs.

Now SC&A was tasked and first 

evaluated the TBDs and issued a report at the end 

of February of 2009. In that report we had 28 

findings and nine observations, which we're going 

to discuss some today.

Now, since then, there's been eight 

Work Group meetings in the period 2010 to 2012. 

And like I say, it's about six years since we 

convened formally.

Now this came about at the Advisory 

Board meeting the 27 of May in 2017. There was 

some discussion of Weldon Spring, some updating 

done, to the Board, and it was discussed and SC&A 

was tasked to review any of the current TBDs and 

revisions to see if they addressed the previous 

findings.
This transcript of the Advisory Board on Radiation and Worker Health, Weldon Spring Work Group, has 

been reviewed for concerns under the Privacy Act (5 U.S.C. § 552a) and personally identifiable 

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certified by the Chair of the Weldon Spring Work Group for accuracy at this time. The reader should be 

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So, through the summer and fall of 

2017, SC&A reviewed the current TBDs and provided 

responses and an updated matrix on the BRS. Now 

there were some emails sent out on some of the 

findings, No. 4 for recycled uranium and Finding 

25 for geometry factor, to the Work Group last 

summer.

And that brings it up to the current 

status. In November of 2017, SC&A brought things 

up-to-date and put them on the BRS. And so, on 

the BRS you'll find 28 findings. On the first 

finding is an attachment which gives the current 

matrices for the findings. And also, there's 

nine observations. On the first observation is 

attached the matrices for the observations.

Now I put those in in order. 

Unfortunately, the BRS has scrambled the 

numerical order of them somewhat, so they're not 

exactly in order when you look at the BRS, but 

they were put in there right.

And some of them are closed. Six 
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findings were previously closed. That was No. 1, 

2, 20, 21, 22, and 23, had been previously been 

closed by the Work Group. There's one finding, 

No. 24, which is addressed as enriched uranium, 

which created a PER, and we'll get an update from 

NIOSH on that today.

And then, there's 21 findings, number 

three through 19 and number 25 through 28, which 

SC&A has evaluated the revisions in the TBD and 

all correspondence with NIOSH or the Work Group, 

and we will recommend those for closure.

Now there's nine observations which 

have been resolved and recommended. Those are to 

be closed or whatever we need to do with that. I 

find that they've been resolved, and those appear 

on the BRS also.

So, with that, that concludes my 

introductions. Are there any questions at this 

time before we go on to number two.

(No response.)
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Update/discussion of open Finding #24 

(awaiting EU PER) 

Okay. I hear no questions. So, item 

number two on our agenda today is an update and 

discussion of open finding number 24. Now I don't 

know if you are on Skype. I have it up on Skype 

and presenting the matrices, if anybody wants to 

refer to that. Does anybody have that on or can 

they see it, to make sure I'm hooked up?

MR. HINNEFELD: I can see it, Ron.

DR. BUCHANAN: Oh, okay. Thank you.

Okay. So, we see on that number 24 

is enriched uranium not sufficiently addressed. 

This was back in our 2010 finding, and we found 

that enriched uranium was mentioned, however, we 

felt that the 1-percent enrichment was -- we 

questioned whether that was the maximum Weldon 

Spring had received.

Since that time, we have received 

documents on the Site Research Database which do 

show that and do state that Weldon Spring did not 
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receive anything greater than one percent 

enriched uranium from 1957 to 1966. So, we agree 

with that, and we have no further issue with that.

Now TBD-5, Revision 3 of 2017, 

increased the one percent enriched uranium 

specific activity from 0.783 picocuries per 

microgram to 0.973 picocuries per microgram. So, 

this would increase the dose assigned to those 

previous claims that had been processed with the 

older value. And so, therefore, a PER was 

required.

And our last information was October 

4th of 2017. We got an email from NIOSH saying 

that that would be issued. And so, at this time 

I'll let NIOSH update us on where that's at.

MR. ROLFES: Thank you, Ron.

I checked to see, I looked back to 

see. NIOSH/DCAS submitted the PER to ORAU on 

November 13th of last year, 2017, and ORAU has 

completed a list of the affected claims as of 

yesterday for DCAS review and approval. I don't 
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know if it's been transmitted to us yet or not, 

but that PER documentation is scheduled to be 

reviewed and completed and, then, submitted to 

the Department of Labor by the end of May of this 

year.

DR. BUCHANAN: Okay. Thank you, Mark.

As far as SC&A is concerned, the PER 

was not part of our initial finding. So, I just 

want to keep track of it on this. However, I 

don't know if the Work Group -- we consider the 

issue closed, the data in the research database, 

but I don't know if the PER is a separate issue 

which we'll follow separately or how the Work 

Group wants to -- if they want to close that or 

leave it open.

MR. KATZ: So, Ron, this is Ted.

So, I mean, it is a separate issue. 

And your recommendation to close the finding is 

really what the Work Group needs to hear. And 

then, I guess if we're going to take these oneby-one, we might as well take this first, but I 
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think, then, we just put it to the Work Group, 

does it concur with your recommendation? If so, 

we can close that and go on to the next finding.

CHAIR LEMEN: I guess we ask the Work 

Group, do you concur? Can we close it? 

MEMBER ZIEMER: This is Ziemer.

I believe they've resolved the issue 

as far as the use of the 1 percent -- or use of 

the concentration value. So, I'm in favor of 

closing the finding itself.

CHAIR LEMEN: Okay. Bill?

MEMBER FIELD: Yes, this is Bill. I 

agree.

CHAIR LEMEN: And I agree.

MR. KATZ: And so it's closed. And 

just for a process question, after this meeting 

Ron will, then, update all the findings to relate 

to whatever the final decisions are in terms of 

closure and non-closure of the findings.

CHAIR LEMEN: Okay.

MR. KATZ: Let's move on.
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CHAIR LEMEN: So, it's closed.

MR. KATZ: Yes.

DR. BUCHANAN: Okay.

CHAIR LEMEN: Next?

Discussion of 21 open findings recommended 

for closure (Findings 3 - 19, and Findings 

25 - 28) 

DR. BUCHANAN: Okay. Yes, like Ted 

said, after the meeting I'll update it on the BRS 

for permanent record.

So, right now, we have quite a few of 

these to cover. What I suggest I do is read the 

title, give a little description, if I need to, 

and how it was resolved, and then, SC&A's 

recommendation, if that's okay with the Work 

Group.

And so, if look at now Finding 1 and 

2 has previously been closed, so we don't need to 

discuss that. And that's marked "closed" on the 

BRS.

Now that brings us to our first open 
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finding, which is finding number three, which is 

individual exposures versus average exposures. 

And this came about because that Weldon Spring 

processed mainly natural uranium; over 97 percent 

of its material was. However, there was some 

enriched uranium, some recycled uranium that was 

also processed, certain projects, and this could 

create exposure for certain workers. And that 

was a basis of the finding.

Now what we have found since that time 

is that the potential exposure to other 

radionuclides of concern besides the uranium has 

been addressed in other findings, such as number 

four, number 14, and number 24, and such as we 

just looked at for enriched uranium. And 

therefore, we find that the issue has been 

addressed and we would recommend closure.

CHAIR LEMEN: This is Dick. It's kind 

of slow because I have to go on mute and, then, 

come off.

Bill, first to you. Do you agree with
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closure on this one?

MEMBER FIELD: Yes. Yes, it looks 

reasonable.

CHAIR LEMEN: And Paul?

MEMBER ZIEMER: Yes, I agree on this 

one as well.

CHAIR LEMEN: And I do. So, we close 

this one.

MR. KATZ: And, Dick, you know you can 

stay off mute because the three Board members 

aren't going to cause a lot of audio problems 

here.

CHAIR LEMEN: Well, I might pose a lot 

of noise.

(Laughter.)

MR. KATZ: Okay. Go on, Ron.

DR. BUCHANAN: Okay. That brings us 

to issue number four, and that was recycled 

uranium. We felt that it was mentioned in the 

TBDs, but not sufficiently addressed. And we 

find out, since items have developed since then, 
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that the TBD has been revised several times, and 

has included the recycled uranium and their 

associated radionuclides and the intakes, 

assignments. Okay with that.

Yes, we did have little problems 

getting all the dates straight so that they 

corresponded in all TBDs. The correct wording 

was to start in 1961 and from then on, and some 

of them said "after 1961". But, then, the recent 

editions of the TBDs state 1961 and are 

consistent. And so, we recommend that this issue 

be closed.

CHAIR LEMEN: Paul?

MEMBER ZIEMER: Yes, I agree. That 

was kind of a minor one, but that's taking care 

of it.

CHAIR LEMEN: Bill?

MEMBER FIELD: Sounds good.

CHAIR LEMEN: And I'll agree. So, 

it's closed.

DR. BUCHANAN: Oh, okay. That brings 
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us, let's move on to the next one. Another closed 

one.

Issue number five is accident and 

incident documentation not sufficiently 

addressed in the TBDs. Now this, of course, is 

back about 10 years ago. We have discussed those 

at many sites since then. We did discuss them at 

the 9/13/21 (sic) Weldon Spring Work Group 

meeting. NIOSH did provide some dose 

reconstruction information/clarification. SC&A 

did agree with this issue. It was resolved on 

page 136 of the transcript. And so, we recommend 

closure on this finding.

CHAIR LEMEN: Bill?

MEMBER FIELD: So, this one goes back 

a while. Yes, I think it's fine.

CHAIR LEMEN: Paul?

MEMBER ZIEMER: Yes, I agree, close.

CHAIR LEMEN: I'll agree. So, it's 

closed.

DR. BUCHANAN: Okay. Now findings 
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number six, seven, eight, and nine are all kind 

of related to the same issue. And that's the 

TBD-3, and that's X-ray frequency and exams, the 

type and frequency of what exams, lumbar spines, 

that sort of thing, how you convert that to dose.

And initially, TBD-3 did not clarify 

this, we felt. However, TBD-3 has been revised, 

and this was discussed at the 1/25/2011 Work 

Group meeting on page 250 to 258, and NIOSH 

clarified some stuff in that meeting and, also, 

made it clear that the OTIB-79 and OTIB-6 and the 

latest revision of TBD-3, and to they provide 

clarification of the frequency and the type of 

X-rays taken and the dose conversion, and 

different parts of the body. And so, we feel 

that six, seven, eight, and nine have been 

addressed, changed in TBD, and recommend closure 

of those four findings.

CHAIR LEMEN: So, right now, we're 

voting on the four findings, six, seven, eight, 

and nine, is that correct?
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DR. BUCHANAN: Correct. They're all 

resolved by the same TBD-3 changes.

CHAIR LEMEN: Okay. Paul?

MEMBER ZIEMER: Yes, those are all the 

X-ray exposures. Now these were all just the 

regular worker X-rays, annual X-rays, were they 

not?

DR. BUCHANAN: Correct.

MEMBER ZIEMER: Yes. Yes, I'm in 

favor of closing that. That has easily been taken 

care of.

CHAIR LEMEN: And Bill?

MEMBER FIELD: You bet. It looks like 

that TBD was updated. It helped a lot.

CHAIR LEMEN: I agree also. So, those 

four are closed.

DR. BUCHANAN: Okay. Now that brings 

us to number -- now that was TBD-3. These go 

kind of by TBD, so we're on TBD-4 now, number 10. 

And this is another one where four of them are 

all addressed by the same resolution, changes in 
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TBD-4, 10, 11, 12, and 13.

Ten was lack of atmospheric monitoring 

data for the operational period, using Weldon 

Spring data. That's since been rectified.

Insufficient data for unmonitored 

workers' internal environmental doses. Lack of 

validation for maximum environmental dose, and 

lack of sufficient effluent data prior to 1967 

during the operational period.

Now those came about in that a lot of 

the information in the original TBDs used some 

data from Fernald for what we felt wasn't good 

situations to determine the exposure. However, 

TBD-4, Rev 1 of 5/17/2013, had data by assigning 

environmental intakes with accompanying text for 

the DR, and they had quite a bit of information 

and added Weldon Spring's data, didn't rely as 

much on Fernald data. And so, we see that on the 

summary of additions there's quite a few on page 

two of Rev 1 of TBD-4, and that these additions 

resolve the environmental intake issues that we 
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had in TBD-4 for finding 10, 11, 12, and 13. And 

so, we recommend the closure of those four 

findings.

CHAIR LEMEN: So, we're talking 11, 

12, 13?

DR. BUCHANAN: Ten, 11, 12, and 13, 

the four findings on environmental.

CHAIR LEMEN: Okay. Okay. On the 

environmental?

DR. BUCHANAN: Mm-hmm.

CHAIR LEMEN: So, Bill, what is your 

opinion?

MEMBER FIELD: Yes, I agree.

CHAIR LEMEN: And Paul?

MEMBER ZIEMER: Yes, and I just have 

one question on these. Does this include those 

lookup tables that the dose reconstructors use 

then?

DR. BUCHANAN: Yes, they would include 

data that's now contained in the TBD that's to be 

used for environmental intake for people that 
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weren't monitored.

MEMBER ZIEMER: Yes. Well, I'm 

assuming, Ron, in your review of this that you 

took a close look at the tables. I mean, I 

glanced through them, but you took a good look at 

the tables themselves, right?

DR. BUCHANAN: Yes. Each revision 

that came out we did a test, reviewed it to see 

that it satisfied --

MEMBER ZIEMER: Yes.

DR. BUCHANAN: -- didn't pose any new 

problems and satisfied the old problem.

MEMBER ZIEMER: Yes. Yes. Okay, yes, 

I favor closing them then.

CHAIR LEMEN: Okay. I do, too. So, 

that leads us, Ron, I guess, to start on 14, 

right?

DR. BUCHANAN: Right. Correct. Okay. 

So, we start on 14. And 14 is that we were 

concerned about the ratio of some of the 

uranium/thorium/radium ratio here in TBD-4, 
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whether it covered all the workers and such. And 

we find that Revision 1 of TBD-4 of 5/17/13 added 

tables and data on pages 19 through 22 to resolve 

these issues. And again, we have went through 

that and found that they did resolve it. So, we 

recommend closure.

CHAIR LEMEN: For 14?

DR. BUCHANAN: On number 14.

CHAIR LEMEN: All right. Paul?

MEMBER ZIEMER: Yes, agreed.

CHAIR LEMEN: Bill?

MEMBER FIELD: Yes.

CHAIR LEMEN: And I agree.

So, let's go to 15.

DR. BUCHANAN: Okay. Fifteen was the 

natural thorium was not always negligible. And 

so, we just said that it should be addressed also. 

And we're seeing that revision to TBD-4, Rev 1 of 

2013, on page 10, has information that corrects 

this issue. And so, we recommend closure on 

number 15.
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CHAIR LEMEN: Okay. Bill?

MEMBER FIELD: Yes.

CHAIR LEMEN: Paul?

MEMBER ZIEMER: Yes.

CHAIR LEMEN: And I say yes.

So, let's go to 16.

DR. BUCHANAN: Okay. Number 16, use 

of external environmental dose from Fernald 

estimated data. In essence, the earlier TBDs 

relied quite a bit on Fernald. And so, we brought 

this issue up. And TBD-4, Rev 1 of 2013, Section 

4.3, uses Weldon Spring's data instead of Fernald 

data. And so, we reviewed that, felt that that 

covered it sufficiently, and that it had been 

resolved, and recommend closure on finding number 

16.

CHAIR LEMEN: Paul?

MEMBER ZIEMER: Yes, I'm in agreement 

with their finding here.

CHAIR LEMEN: Bill?

MEMBER FIELD: In agreement.
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It seems like a lot of these were 

completed a while back. I was just wondering, if 

we had had a meeting sooner, we could have closed 

a lot of these before, couldn't we?

DR. BUCHANAN: Yes, that's correct.

MEMBER FIELD: Okay.

CHAIR LEMEN: So, I agree.

So, let's move on to 17.

DR. BUCHANAN: Okay. Number 17, 

episodic releases, and this has a time variance 

to it. Can you do a chronic exposure compared to 

acute releases, that sort of thing? This has 

been discussed several times and at other sites. 

And we discussed it at the 2011 Work Group 

meeting, and NIOSH supplied clarification of the 

information and NIOSH testing. They agreed with 

this issue along with the incidents were resolved 

on page 136 of the transcript. And therefore, we 

recommend closure.

CHAIR LEMEN: Okay. Bill?

MEMBER FIELD: Yes, that looks fine.
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MEMBER ZIEMER: Yes, Ron, could you 

just remind me? I actually didn't look at page 

136 of the transcript. What does that say there?

DR. BUCHANAN: I don't --

MEMBER ZIEMER: Or maybe you don't 

need to quote it, but that's the Work Group 

transcript, I believe?

DR. BUCHANAN: Right, and that was, if 

I recall right, that was when we were questioning 

the bioassay data that would represent the 

releases. And at that time NIOSH discussed how 

they would use the bioassay data or coworker data 

or environmental data to assign dose. And at 

that time, as far as I recall, we agreed that 

that would cover the incidents that workers might 

be exposed to.

MEMBER ZIEMER: Yes. Okay.

DR. BUCHANAN: I can go back and read 

that page to you exactly. I don't have it --

MEMBER ZIEMER: No, that's fine. 

Okay. Yes, I'm okay on that.
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CHAIR LEMEN: And I am.

So, let's go to 18.

DR. BUCHANAN: Okay. Number 18 is 

incomplete assessment of uranium decay products. 

Okay. We felt that some of the decay products 

weren't covered sufficiently in the TBD-5. Now 

we're moving on to the next TBD-5 for finding 18. 

And TBD-5, Rev 2 of 2013, Section 5.2.2 provides 

data that includes this information and intakes, 

and that we find this has been resolved. So, we 

recommend closure.

CHAIR LEMEN: Paul?

MEMBER ZIEMER: Yes, I was good on 

this one.

CHAIR LEMEN: Bill?

MEMBER FIELD: Yes.

CHAIR LEMEN: And I am.

So, let's go to 19.

DR. BUCHANAN: Okay. Nineteen, a 

little bit of background on this. It's 

incomplete radon exposures. Initially, NIOSH 
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refusing an environmental exposure for TBD-5, and 

we questioned that. And so, they went into an 

indoor exposure model, if I recall correctly. 

It's been a while. And where they didn't have 

any ventilation, it was probably overly 

conservative. And they put maximum material 

processed in the inside room, did a modeling of 

radon intake. And we found that this modeling 

was acceptable. And it was discussed at the 

6/7/2012 meeting, on transcript page 69.

At that time the Work Group discussed 

it and said they would take it to the Board, the 

Advisory Board's next meeting. I wasn't in on 

that Board meeting, but, since that meeting, the 

Board apparently questioned the .5 equivalent 

factor. And NIOSH has since increased it to .7 

in the revised TBD to increase the equilibrium 

factor.

And I've talked to other people at 

SC&A about this, and they say this is quite 

conservative. And so, SC&A finds that it's 
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conservative and recommends closing. We sent an 

email to the Work Group of 12/6/2017 that this 

response was agreeable, and we entered it on the 

BRS. So, that's where that stands at this point.

If the Work Group feels comfortable 

with, I guess, the Advisory Board's 

recommendation of .7, then we can recommend 

closing it.

CHAIR LEMEN: Paul?

MEMBER ZIEMER: Well, I have one 

question on this one. Maybe Ted can remind us. 

Did the Board itself recommend that change or was 

it simply discussed and, then -- the change from 

.5 to .7?

MR. KATZ: Yes, Paul, I believe this 

was raised with that specific change discussed, 

raised at the Board meeting, and the Board said 

we'll check.

MEMBER ZIEMER: So, there wasn't a 

formal Board action on it? It simply was raised 

in that discussion?
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MR. KATZ: Yes.

MEMBER ZIEMER: And then, after that, 

NIOSH went back and actually raised it. And then, 

it's gone to SC&A and they agree with that? Is 

that the process on this one?

MR. KATZ: Yes, correct.

MEMBER ZIEMER: Okay. Yes, it's very 

good. I'm good, I'm good then, mm-hmm.

CHAIR LEMEN: Bill.

MEMBER FIELD: Yes, I recall this and 

I remember having problems and raising some 

concerns about the .5, but I think the .7 is 

claimant-favorable, but realistic. So, I agree.

CHAIR LEMEN: Good. I agree also.

So, let's go to No. 20.

DR. BUCHANAN: I had one question on 

that for NIOSH. Did that create a PER?

MR. HINNEFELD: Ron, this is Stu.

The PER that's in process that Mark 

was talking about incorporates all the changes 

that have been addressed here to the extent they 
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would change the calculation of radiation dose. 

So, yes, it will be included in that PER that's 

getting close.

DR. BUCHANAN: Okay. Thank you very 

much.

Okay. So, that brings us to, okay, 

now on numbers 20, 21, 22, and 23, have previously 

been closed by the Board. So, we don't need to 

discuss those. Those are in green.

CHAIR LEMEN: I believe so, and we 

still have an open finding on 24?

DR. BUCHANAN: Okay. Now 24, no, that 

was enriched uranium we discussed just a little 

bit ago.

CHAIR LEMEN: So, that's closed.

DR. BUCHANAN: And so, that will be 

closed on the BRS when I update it.

That brings us to 25. Okay. So, 

finding 25 was shallow and extremity doses not 

sufficiently characterized. And this was 

concerning, of course, low-energy radiation to 
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the skin and such. And so, we find that, yes, 

we're on TBD-6 now. So, TBD-6, Revision 1 of 

2/6/2013, added Section 6.3.11. On page 30, they 

discuss geometry factors and references DCAS 

0013.

Now SC&A had a little trouble finding 

the right reference and evaluating it. We found 

that it does address the issue sufficiently. We 

sent an email out on June 13th of 2017 to the 

Work Group that it had been resolved and 

recommend closure.

CHAIR LEMEN: Bill, do you agree with 

that?

MEMBER FIELD: Yes. I did go back and 

read all the correspondence. So, I think this 

sounds reasonable.

CHAIR LEMEN: And Paul?

MEMBER ZIEMER: Yes, I agree on this 

one.

CHAIR LEMEN: So now, we have 26.

DR. BUCHANAN: Okay. Badging policy 
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not consistent on the TBDs was finding 26, 

originally. And we were concerned about whether 

the documentation of the badging was complete or 

not and whether the dose reconstructor would be 

aware of badging or not to assign missed or 

coworker dose or environmental dose. So, this 

gives the environmental dose that's less than 

coworker or missed dose.

And then, November 9th of 2011, NIOSH 

responded to the Site Profile and SEC issues, was 

explained in detail on page 17 of that response. 

And it was followed up by a revision in TBD-6, 

Section 6.3.7 of Rev 1 of 2013.

And we have reviewed that and felt 

that it does clear it up to where the dose 

reconstructor has better clarification on when to 

assign what. And so, we recommend closure on 

that issue.

CHAIR LEMEN: Paul?

MEMBER ZIEMER: Yes, I agree.

CHAIR LEMEN: Bill?
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MEMBER FIELD: This is when I went 

back and looked at the revision because I had 

questions about this, and I think it's much 

better now. So, I think that's fine.

CHAIR LEMEN: And I agree.

Twenty-seven?

DR. BUCHANAN: Okay. So, it moves on 

to finding 27, lack of sufficient coworker data 

development for external dose. We felt that 

there was some area of question on how the 

coworker data was developed. And so, that's what 

this finding was about.

We see that TBD-6, Rev 1 of 2013, 

revised table 6-7 and added 6-8 to resolve this 

issue, and felt that there was sufficient 

information for the dose reconstructor to do 

coworker dose assignment as per TBD-6. And so, 

we recommend closure of this issue.

CHAIR LEMEN: Bill?

MEMBER FIELD: Yes, agree.

CHAIR LEMEN: Paul
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MEMBER ZIEMER: Yes, I agree.

CHAIR LEMEN: And I agree.

So, that brings us 28. Twenty-eight 

is the last one now that we're talking about?

DR. BUCHANAN: Correct, this is the 

last finding, number 28. This is for TBD-6, lack 

of documentation and detail for neutron doses. 

Okay. So, it's the regular old neutron issue at 

uranium processing plants.

And so, what they did was select some 

information from Fernald, again, to come up with 

an N over P value of .1. Again, we objected to 

using Fernald data. And so, we had some 

discussion on this in that 2011 Work Group 

meeting, transcript page 95 through 134.

And what we did, SC&A went back. We 

evaluated some other sites that had similar 

processing and found that, although we didn't 

exactly agree with the method, we did find that 

the results were conservative and using an 

N over P of .1 was okay.
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And so, we sent an email out 9/2011 

that the issue had been resolved and could be 

closed. So, we recommend closure on it.

CHAIR LEMEN: Bill?

MEMBER FIELD: So, other sites were 

looked at other than Fernald? That's what you're 

saying, right?

DR. BUCHANAN: Yes, uh-hum.

MEMBER FIELD: Okay. I think I'm 

fine.

CHAIR LEMEN: Paul?

MEMBER ZIEMER: Yes, I'm good on this 

one.

CHAIR LEMEN: And I'm good on this 

one.

So, that brings us to closure on all 

28 that were open, is that correct?

DR. BUCHANAN: That's correct.

CHAIR LEMEN: And we agreed to close 

all 28?

DR. BUCHANAN: Yes.
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CHAIR LEMEN: So, as far as the agenda 

is concerned, we have gone through the first, 

second, and third points, I believe, Ted, is that 

correct?

MR. KATZ: Well, I'm not looking at 

the agenda, but all we have left are the 

observations.

CHAIR LEMEN: The nine observations.

MR. KATZ: Yes, correct.

CHAIR LEMEN: Who is to lead that 

discussion?

MR. KATZ: Ron. Ron.

CHAIR LEMEN: Ron?

DR. BUCHANAN: Oh, yes, I'll be the 

lead on it.

CHAIR LEMEN: All right.

Discussion of nine observations that have 

been resolved 

DR. BUCHANAN: Okay. Let me open that 

up here.

So now, if you keep looking at the 
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screen, you will see Weldon Spring Site Profile 

Observation Matrix, and it's January of 2018. 

And I've updated some of this. This is on the 

BRS, field observation number one, and you will 

see it attached.

Okay. Now, back when we were doing 

these, we did not number them sequentially. We 

actually have nine. We did it by TBD. And so, 

I'll clarify that as we go through.

The first observation we have general, 

and it covers several of the TBDs. It's lack of 

coverage of all site activities. Some of the 

material is printed offsite, some stuff done to 

it and brought back. And we were concerned about 

exposure offsite. But, since that time, there's 

been some policies made and such, and we 

understand that exposures occurring offsite are 

not covered. You have to be on the site, the 

covered site itself. Therefore, this observation 

has been resolved. And I don't know if you want 

to close off observations or just say they've 
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been resolved.

CHAIR LEMEN: I think just say they've 

been resolved.

DR. BUCHANAN: Okay.

CHAIR LEMEN: Unless the other two, 

unless Bill or Paul disagree with that.

MEMBER ZIEMER: Yes, well, I would I 

guess I would ask Ted. I don't think we actually 

take formal actions on observations, do we? If 

just SC&A and NIOSH agree that they've been 

resolved, does the Work Group actually take 

actions?

MR. KATZ: Well, I mean, the Work 

Group usually runs through them to make sure that 

there's nothing that seems wrong.

MEMBER ZIEMER: Yes, yes. As long as 

we don't have any questions on them or something. 

I mean, we don't officially close them, do we?

MR. KATZ: Well, some Work Groups do; 

some don't.

MEMBER ZIEMER: Oh, really?
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MR. KATZ: You can do whatever you 

want. You can say the results, as long as you 

pass through them all and are okay with how they 

were addressed for good.

CHAIR LEMEN: I propose that he says 

the result. Unless anybody wants to change that, 

that's fine.

MR. KATZ: No, that's fine.

CHAIR LEMEN: Okay. Number two?

DR. BUCHANAN: The second observation 

has to do with TBD-3, and it was the medical TBD. 

There was not a typo; it looked like something in 

the equation, and NIOSH has removed that equation 

from TBD-1, Revision 1 in TBD-1, and Revision 1 

as of 2013. So, it no longer applies. So, we 

consider that resolved.

CHAIR LEMEN: Yes. Everybody agree?

MEMBER FIELD: Yes.

MEMBER ZIEMER: Yes, that's good. Not 

an issue anymore.

CHAIR LEMEN: Okay. Now observation 
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three.

DR. BUCHANAN: Okay. The third 

observation has to do with TBD-4, and that's 

application of environmental dose. And this kind 

of goes back to one of the findings. There's a 

couple of them that are when do you assign 

environmental dose and when do you assign 

coworker or missed dose. Again, the rewording in 

TBD-4, Revision 1 of 2013, Section 4.1.1, 

provides correct wording. So, they don't feel 

that there's -- we feel that it's clarified for 

the dose reconstructor and it's been resolved.

CHAIR LEMEN: Everybody agree with 

that?

MEMBER ZIEMER: Yes. It was just a 

wording issue, wasn't it?

DR. BUCHANAN: Correct. Correct.

MEMBER ZIEMER: Yes, yes.

CHAIR LEMEN: Bill?

MEMBER FIELD: The clarification is 

good.
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CHAIR LEMEN: Bill, you said you 

agree?

MEMBER FIELD: Yes. I say the 

clarification looks good, yes.

CHAIR LEMEN: Okay. Observation four?

DR. BUCHANAN: Okay. Observation four 

was TBD-4 again. And this was the special uranium 

curie. And this comes about because uranium 

gives off several daughter products. And so, 

they multiply the curie by 2.024 to arrive at the 

total activity. And the wording was somewhat 

confusing, we thought, in TBD-4. It's fairly 

straightforward in TBD-5.

And we discussed this some with NIOSH 

and went back and analyzed the way it was worded 

again, and we agree that technically it's 

correct. And so, we don't have a further issue 

with it and feel it's been resolved.

CHAIR LEMEN: Bill?

MEMBER FIELD: Yes, it looks resolved.

MEMBER ZIEMER: Yes, yes, that's fine.
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CHAIR LEMEN: Okay. It's resolved.

Five?

DR. BUCHANAN: Okay. The fifth 

observation was correction to the text on TBD-4. 

And this was simply typos, 10 to the fifth power, 

and "working levels of" instead of "or", uranium, 

radon, I mean. And TBD-4, Rev 1 of 2013, 

corrected this, the typos, in the past. And so, 

it's been resolved.

CHAIR LEMEN: Paul, okay?

MEMBER ZIEMER: Again, it's just more 

like an error thing. That's fine.

MEMBER FIELD: Yes.

CHAIR LEMEN: And you're okay, Bill?

MEMBER FIELD: Yes. It makes quite a 

difference, though, doesn't it? Yes.

CHAIR LEMEN: Yes.

MEMBER FIELD: Yes, yes, that's fine.

CHAIR LEMEN: Okay. Resolved.

Number six?

DR. BUCHANAN: Okay. Number six is 
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TBD-5, and that's thorium. And we felt that it 

wasn't real clear on what the years that should 

be used by the dose reconstructor. And we find 

that thorium exposures have been addressed in 

more detail in Site Profile findings such as 

number 14. So that this has been resolved.

CHAIR LEMEN: So, do we know what 

years that thorium has been used?

DR. BUCHANAN: Yes, it does specify 

when they used thorium and how much, and that 

sort of thing, in the --

CHAIR LEMEN: And we're pretty 

certain? And they're pretty confident that this 

information is correct?

DR. BUCHANAN: Well, it relates back 

to number 14, which we had clarified the use of 

it in the revised TBD-4 in pages 19 to 22.

CHAIR LEMEN: Okay. Paul, do you 

agree with this?

MEMBER ZIEMER: Yes, I do.

CHAIR LEMEN: Bill?
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MEMBER FIELD: Yes.

CHAIR LEMEN: Okay. Go to observation 

seven.

DR. BUCHANAN: Okay. Number seven is 

TBD-5 again. And some of these were just 

observations that clearly didn't affect dose 

reconstruction. "A" was the location of a 

paragraph. It would have been more appropriate 

on a different page, but that doesn't really 

impact dose reconstruction.

"B" was -- let's see, tables. Okay, 

yes, a reference to tables and documents, and 

they corrected this on page 13 of Rev 2 of 2013 

at TBD-5. It gives the correct references and 

tables.

And "C" is the second paragraph using 

the assumption of MAC hours. And this has been 

resolved because TBD-5, Rev 2 of 2013, page 40, 

gives us a different methodology. So, therefore, 

the observation is no longer applicable.

CHAIR LEMEN: All right. Paul?
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MEMBER ZIEMER: Yes, good on all of 

these.

CHAIR LEMEN: And Bill?

MEMBER FIELD: Yes.

CHAIR LEMEN: All right. Let's go to 

eight.

DR. BUCHANAN: Okay. It is TBD-6 now, 

and we look at TBD -- it was the table 6.6 and 

used question marks for the gamma symbol, and 

that's been corrected in Rev 1. Table 6-5 uses 

the correct symbol. So, we find that resolved.

And "B" is Table 6-6, page 15, under 

the report column, they refer to a number of 

figures. However, it describes different 

contents in the figures, and we thought it would 

be more instructive to refer to them each 

individually. But it doesn't really impact dose 

reconstruction. And so, we feel that that's been 

resolved and recommend that those both have been 

resolved.

CHAIR LEMEN: Okay. You, Bill and 
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Paul, agree with this?

MEMBER ZIEMER: Yes. It is really 

editing.

CHAIR LEMEN: And lastly, nine.

DR. BUCHANAN: Okay. Nine is TBD-6, 

missing data in TBD-6. And this was that there 

were some tables, 6-2 and 6-14, that had some 

blanks in them for some of the entries, and we 

felt that it would be useful to have those filled 

in. However, these can be filled in. It doesn't 

really impact dose reconstruction because this 

information is contained elsewhere and in 

workbooks, et cetera, and the LOD values are used 

in the dose reconstruction for these periods. 

And so, it would not impact the dose 

reconstruction per se. So --

CHAIR LEMEN: Okay. I'm sorry.

DR. BUCHANAN: Yes, I feel these have 

been resolved.

MEMBER FIELD: It looks resolved.

MEMBER ZIEMER: Yes, it looks good. 
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Okay.

CHAIR LEMEN: I guess that's all the 

observations. Is there something else that's not 

on the agenda that needs to be discussed?

MR. KATZ: Yes. This is Ted.

So, I mean, you've gotten through

everything, which is great and it's very 

efficient, which means the Board is done with 

this Site Profile review and you can report out 

on the Site Profile review at the April Board 

meeting.

CHAIR LEMEN: All right.

MR. KATZ: So, SC&A, Ron, normally, 

what we would have is SC&A would draft a 

presentation of the Site Profile review, giving 

a little of the history and how each finding was 

resolved. There are a lot of findings here, so 

I would encourage sort of lumping and summarizing 

to some extent. But, actually, they can do that. 

And then, normally, the Chair would, then, 

present that, Dick, to the Board for the Board's 
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discussion and closure.

CHAIR LEMEN: Okay.

MR. KATZ: So, if that sounds okay, 

then --

MEMBER ZIEMER: One question. Is this 

for the phone call meeting or the face-to-face 

meeting?

MR. KATZ: For the face-to-face 

normally. I mean, normally, we try not to do too 

much substantive matters if we don't need to at 

the teleconference --

MEMBER ZIEMER: Right, right.

MR. KATZ: -- and particularly this 

teleconference, I think.

MEMBER ZIEMER: Right.

MR. KATZ: We want to do just process 

matters because we don't have a Chair.

MEMBER ZIEMER: Right.

MR. KATZ: Yes.

CHAIR LEMEN: All right. So, we've 

given Bill eight minutes, it looks like.
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(Laughter.)

MEMBER FIELD: More than happy.

CHAIR LEMEN: And so, I guess we can, 

unless there's something, can adjourn the 

meeting.

DR. BUCHANAN: I had one question. 

Ted, so, then, I'll go and put these responses 

and close them on the BRS. And then, do you want 

me to provide a brief summary of the finding and 

resolution to the Chair, so he can present it 

orally to the Board in April?

MR. KATZ: Yes, yes. And John Stiver 

is very familiar with what we do in presenting 

Site Profile reviews to the Board, to the full 

Board. So, you can check with him or just get 

examples from him of how we've done it for other 

Site Profile reviews.

And just the last matter to mention 

before we adjourn is that you had some talk about 

this PER that's in the works. When that PER gets 

issued, we'll assign that -- normally, the Board 
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does for most PERs assign that to SC&A to review 

the PER. And the Work Group would just look at 

how that gets resolved, but that will be down the 

road.

Okay? Does that sound good?

MEMBER ZIEMER: It sounds good.

MEMBER FIELD: Yes, it sounds good.

CHAIR LEMEN: That's fine.

We will adjourn unless there's some 

objection.

MR. KATZ: No. Thank you, everybody. 

Thank you, everybody.

MEMBER ZIEMER: Okay. Thank you.

MEMBER FIELD: Okay. Thank you very 

much.

Adjourn 

CHAIR LEMEN: Thank everybody. Byebye.

(Whereupon, the above-entitled matter 

went off the record at 2:51 p.m.)
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