1 Summary Minutes of the

U.S. Environmental Protection Agency (EPA)

Clean Air Scientific Advisory Committee (CASAC)

L e ad Review Panel

Public Teleconference

April 1 , 2013

Date and Time : Mon d ay , April 1 , 201 3

, 1:00 P M

– 4:0 0 PM ET

Location : By telephone only

Purpose : The purpose of the meeting was to review two draft reports entitled “CASAC Review of

the EPA’s Integrated Science Assessment for Lead (Third External Review Draft

– November 2012)” and “CASAC Review of the EPA’s Policy Assessment for the Re view

of the Lead National Ambient Air Quality Standards (External Review Draft

– January

2013)”

Participants : Lead Review Panel (for full panel, see roster 1 )

Dr. H. Christopher Frey, CASAC Chair

Mr. George Allen

Dr. Herbert Allen

Dr. Richard Canfield

Dr. Deborah Cory

- Slechta

Dr. Philip Goodrum

Dr. Philip Hopke

Dr. Chris Johnson

Dr. Susan Korrick

Dr. Michael Kosnett

Dr. Roman Lanno

Mr. Richard Poirot

Dr. Joel Pounds

Dr. Michael Rabinowitz

Dr. William Stubblefield

Dr. Ian von Lindern

Dr. Gail Wasserman

Dr. M ichael Weitzman

M r. A aron Yeow , Designated Federal Office (DFO)

D r

. John Vandenberg , EPA National Center for Environmental Assessment (NCEA)

Ms. Lydia Wegman, EPA Office of Air Quality and Planning Standards (OAQPS)

O ther Attendees (See Attachmen t A )2

Opening Remarks

M r

. A aron Yeow , DFO

, opened the meeting

. H e noted that as required under the Federal Advisory

Committee Act (FACA) , the Panel ’s deliberations are held in public with advanced notice given in the

Federal Register 2 , and the meetin g minutes will be made publicly available after the meeting. H e noted

that the Panel receive d one written public comment from EPA OAQ P S and that EPA NCEA and EPA

OAQPS request ed to make oral statements. H e sta ted that the SAB Staff Office reviewed informat ion

provided by the panel and determine d that there were no issues with conflict

- of

- interest n or any issues

with an appearance of a lack of impartiality for any of the panel members

. H e then turned the meeting

over to Dr. Christopher Frey

, Chair of the C AS AC

.

Dr. Frey welcomed everyone and gave an overview of the Agenda 3

.

Public Comments on the Draft ISA Report

There were no public comments so the panel proceeded to the next item on the agenda.

EPA Comments on the Draft ISA Report

D r

. John Vandenberg, EPA NCEA

, thanked the p anel members for their advice and for the hard work

put into drafting the report. He wanted to assure the panel that all their comments, in the letter to the

Administrator, in the consensus responses

, as well as in their individual comments are taken very

seriously and given much consideration. He asked that the panel consider clarifying the strength of the

recommendations throughout the report to ensure that they accurately reflect the intention of the panel

.

Discussion on the Draf

t ISA Report

Discussion of Consensus Responses

The panel agreed to strengthen the recommendation for EPA to continue developing a new Pb air

sampler (page 10, line 31). A panel member agreed to provide the citation to the study indicating

elevated Pb lev els in honeybees nearing general aviation airports (page 11, line 28). A panel member

agreed to provide revisions to the last paragraph of the Chapter 4 consensus response to more

specifically incorporate the individual comments pertaining to the challenge of estimating the air Pb to

blood Pb ratio at low Pb exposures (p. 12, lines 14

- 15). The panel had some discussion regarding the

causal association between low Pb exposure levels and renal dysfunction. They agreed to strengthen

their recommendation for EP A to change the causal designation from “likely to be a causal relationship”

to “suggestive of a causal relationship.” The panel agreed to soften the recommendation for the need for

causal determination graphs for ecological effects (p. 19, lines 33

- 35).

Discussion of Letter to the Administrator

The panel agreed to clarify the comments and recommendations on lines 30

- 35 of the first page of the

letter. The panel also agreed to revise the letter to make it consistent with the revisions discussed for the

c onsensus responses.

Public Comments on the Draft PA Report

There were no public comments so the panel proceeded to the next item on the agenda.3

EPA Comments on the Draft PA Report

Ms. Lydia Wegman, EPA OAQPS, indicated that they had provided written co mments 4 to the panel and

she provide d an overview of those comments which centered on the panel’s comments and

recommendations on the cause and impact of the export of Pb to other countries.

Dr. Frey proposed revisions to the letter (lines 26

- 42, page 2; lines 1

- 5, page 3) to make it clear that it

was a separate policy issue and that the panel did not consider that issue in providing comments on the

current NAAQS review documents. The panel agreed to the revisions.

Discussion on the Draft PA Report

Discu ssion of Consensus Responses

The panel agreed to revisions to the consensus response to Chapter 1 (lines 11

- 14, 27

- 32, page 9)

, consistent with the proposed revisions to the letter the panel had just previously discussed. The panel

agreed to various other editorial changes throughout the consensus responses to make the report more

clear.

Discussion of Letter to the Administrator

In addition to the revisions to the letter previously discussed by the panel, the panel also agreed to

revisions to clarify the comments and recommendations on the secondary standard (lines 15

- 17, page 2).

Dr. Frey indicated that the Draft Secretariat of the Commission for Environmental Cooperation (CEC)

report 5 was sent to the panel members and he read the main conclusions and re commendations from the

report. The panel agreed with the recommendations.

Dr. Frey discussed the remaining schedule for the review, including the Chartered CASAC quality

review on May 8, 2013 to discuss the draft reports.

Mr. Yeow noted that this was th e last time the panel would be gathered together and thanked the panel

for their past three years of service. He then adjourned the meeting at 4:0 0 PM

.

Respectfully Submitted: Certified as Accurate :

/Signed/ /Signed/

Mr. Aaron Yeow Dr. H. Christopher Frey

Designated Federal Officer Chair

EPA SAB Staff Office CASA C

NOTE AND DISCLAIMER: The minutes of this public meeting reflect diverse ideas and suggestions

offered by Panel members during the course of delib erations within the meeting. Such ideas, suggestions and

deliberations do not necessarily reflect consensus advice from the Panel members. The reader is cautioned to

not rely on the minutes to represent final, approved, consensus advice and recommendatio ns offered to the

Agency. Such advice and recommendations may be found in the final advisories, commentaries, letters or

reports prepared and transmitted to the EPA Administrator following the public meetings.4

Materials Cited

The following meeting materials are available on the CASAC website: http://www.epa.gov/casac , at the

April 1, 2013 CASAC Lead Review Panel Meeting page :

1 Roster

2 Federal Register Notice Announcing the Meeting

3 Agenda for April 1 , 201 3 Public Meeting

4 EPA OAQPS Comments on th e Draft PA Report

5 Reference to the Secretariat of the Commission for Environmental Cooperation (CEC) Draft ReportA

- 1 ATTACHMENT A

– O ther Attendees

CASAC Lead Review Panel Public Meeting

Mon day, April 1 , 2013

Name Affiliation

Hannon, John USEPA

Hines, Erin USEPA

Kirrane, Ellen USEPA

Knight, Chris Clean Air Report

Kotchmar, Dennis USEPA

Lassiter, Meredith USEPA

Martin, Karen USE PA

Meacham, Connie USEPA

Miksad, Roger Wiley Rein LLP

Murphy, Deirdre USEPA

Orlin, David USEPA

Owens, Elizabeth USEPA

Patel, Molini USEPA

Putz rath, Resha Navy and Marine Corps Public Health Center

Ross, Mary USEPA

Svendsgaard, David USEPA

Tennant , Ginger USEPA

Wilson, Linda New York State Office of the Attorney General