memo regarding technical review workgroup for … · child's hands. the draft recommendation...

UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

WASHINGTON DC 20460

FEB l 2 Z014 OFFICE OF

SOLID WASTE AND EMERGENCY RESPONSE

MEMORANDUM

SUBJECT The Technical Review Workgroup for Metals and Asbestos (TRW) Lead and Bioavailability Committees Annual Calendar Year 20 I 3

FROM

Annual Reports

James E Woolford Director It 1--shy0ffice of Superfund Remedao~ and Technology Innovation (OSRTI)

TO Superfund National Policy Managers Regions 1-10 Office of Research and Development Center and Laboratory Directors

The purpose of this memorandum is to transmit The Technical Review Workgroup (TRW) for Metals and Asbestos Subcommittees for Lead and Bioavailability 2013 Annual Reports The Subcommittee on Asbestos will submit their 20 I 3 Annual Report separately

The TRW is convened by the Office of Superfund Remediation and Technology Innovation (OSRTI) with the goal to support and promote consistent application of the best science in the field of risk assessment for metals and asbestos at contaminated sites nationwide The TRW was initially formed as the Technical Review Workgroup for Lead in 1995 Building on the success the group had in advancing lead risk assessment the TRW was expanded to address emerging needs in metals and asbestos risk assessment The TRW reviews metals and asbestos risk assessment methodologies used at hazardous waste sites to help promote the application of scientifically sound and consistent approaches to risk assessment To achieve these goals the TRW is composed of three committees the Lead Committee the Asbestos Committee and the Bioavailability Committee These Committees are primarily composed of members from OSRTI the Regions Office of Research and Development labs and Agency for Toxic Substances and Disease Registry The Asbestos Committee also includes members from the Office of Solid Waste and Emergency ResponseOffice of Emergency Management and Agency for Toxic Substances and Disease Registry Attached are the TRW Bioavailability Committee Annual Report and the TRW Lead Committee Annual Report These Annual Reports presents the accomplishments and activities ofthese two TRW Committee as well as a list of current TRW members

OSRTI is also seekjng nominations fo r workgroup members on the TRW Bioavailability Committee and the TRW Asbestos Committee If you would like to nominate your staff for

lntemet Address (URL) bull httpJwwwepagov RecycledRecyclable bull Printed with Vegetable Oil Based Inks on 100o Postconsumer Process Chlorine Free Recycled Paper

membership please submit nominations to Dana Stalcup by February 2014 at the contact information listed below

I would like to thank you for your continued support of these committees The Superfund Remedial Program highly values the technical expertise of your staff and their continued involvement in these critical issues If you have any questions or comments regarding the TRW please contact Dana Stalcup at StalcupDanatepagov or (703 ) 603-8702

cc Mathy Stani slaus OSWER Barry Breen OSWER Nigel Simon OSWERIOPM Barbara Hostage OSWERIOPM Lawrence M Stanton OSWERIOEM Barnes Johnson OSWERORCR David Lloyd OSWEROBLR Reggie Cheatham OSWERIFFRRO Carolyn Hoskinson OSWERIOUST Elliott Gilberg OECAOSRE David Kling OECAFFEO John Michaud OGCSEWRLO OSRTI Managers NARPM Co-Chairs TRW Committee Members

The Technical Review Workgroup for Metals and Asbestos Lead Committee Annual Report

Accomplishments and Activities for Calendar Year 2013 and Plans for Calendar Year 2014

Members

Region 1 Mary Ballew Claire Willscher

Region 9 Sophia Serda

Region 2 Mark Maddaloni Julie McPherson

Region 10 Marc Stifelman Craig Cameron

Region 3 Dawn oven Linda Watson

OSRTI Michele Burgess (co-chair) Steve Jones (A TSDR Liaison)

Region 4 Kevin Koporec

ORD NRMRL- Cincinnati Harlal Choudhury Kirk Scheckel

Region 5 Andrew Podowski ORD NCEA- RTP

Jim Brown Region 6 Ghassan Khoury

Region 7 Mike Beringer (advisor) Todd Phillips

Region 8 Charles Partridge (co-chair) Jim Luey

State of Utah DEQ Scott Everett (co-chair)

Advisors Karen Hogan (ORD NCEA) Paul White (ORD NCEA) Larry Zaragoza (OSRTI) Michele Mahoney (OS RTI)

2013 TRW Annual Report for Lead

TRW Lead Committee Accomplishments of CY 2013

Reports and Guidance Development on Lead Risk Assessment

1 Office ofSolid Waste and Emergency Response (OSWER) Desk Statement on Status ofSuperfund Soil Lead Policy Supported the development of outreach materials related to the Centers for Disease Control and Prevention (CDC) recommendations for blood lead reference value The proposed strategy and materials are under review by Office of Superfund Remediation and Technology Innovation (OSRTI) management Provided recommendations to OSWER stakeholders on Soil Screening LevelsRemoval Management Levels for lead (residential and non-residential)

2 Blood LeadScreening Recommendations Developed a recommendation for using blood lead data at Superfund Sites The final document will be posted on the TRW website

3 Background Soil Working with Uni ted States Geological Survey (USGS) to evaluate data to make recommendations about background concentrations of lead in soil The USGS data will be posted on the Lead TRW website

4 Residential Lead Sites Handbook Prepared updates to the risk management gu idance based on feedback from user community and updated science Polled the Regions about dust sampling practices

5 MsD Evaluated and found the existing data to be inadequate Coordinating review of Bunker Hill Mso data with TerraGraphics (SAS code for Mso data analysis) The data is undergoing data quality review

6 Particle Size and Sieving Analysis Prepared an updated recommendation based on literature search and analysis on the particle size fraction that adheres to a childs hands The draft recommendation went through external peer review and was updated by the TRW accordingly Currently being reviewed by OSRTI management The final document will be posted on the TRW website

7 Urban Gardening Subcommittee Prepared a recommendation regarding soil levels of lead that trigger best management practices This project involves Intrashyand Inter-Agency coordination and to date has involved guests from Agency of Toxic Substances and Disease Registry and United States Department of Agriculture as well as academia The draft recommendation is currently being reviewed by OSR TI management The final document will be posted on the TRW website

8 Phosphate Amendment The manuscript went through external peer review and was submitted for publication The TRW began developing a technical memorandum and fact sheet to follow the manuscript

2013 TRW Annual Reportfor Lead 2

bull Scheckel KG Diamond G Maddaloni M Partridge C Serda S Miller BW Klotzbach J Burgess M (2013) Amending Soils with Phosphate as Means to Mitigate Soil Lead Hazard A Critical Review of the State of the Science(20 13) J Environ Toxico l Heal th Part B 161 -44

Related Publications

bull Li L Xing W Scheckel KG Xiang G J i H Li H (2013) Lead Retention Mechanism in a Calcareous Soil with Calcium and Phosphate Amendments J Hazard Mater 262 250-255

bull Minca KK Basta NT Scheckel KG (2013) Using the Mehlich 3 soil test as an inexpensive screening tool to estimate total and bioaccessible Pb in urban soils J Environ Qual 42 1518-1526

bull Nelson C Gilmore T Harrington J Scheckel KG Miller BW Bradham KD (2013) Evaluation of a Low-cost Commercially Available Extraction Device for Assessing Lead Bioaccessibility in Contaminated Soils Environ Sci Processes Impacts 15 573-578

9 ATSDR-EPA Lead Strategy amp Pilot Study Subcommittee Coordinating with ATSDR and Regions on collaborative approach to lead sites

10 Integrated Exposure Uptake BioKinetic (JEUBK) Model Variable Review Updating exposure variables (ie ventilation rate dietary lead exposure water lead concentration water consumption and bioavailability) in the IEUBK model based on literature review The draft recommendation went through external peer review and was updated by the TRW accordingly Currently being reviewed by OSRTI management The final variables will update the IEUBK model and posted on the TRW website

11 JEUBK Model User Manual Updating the IEUBK Model User Manual including development of an online version Discussed the age ranges used in the IEUBK model Materials are under review by OSRTI management The final document will be posted on the TRW we bsite

12 Maternal Blood Lead Concentration Updating the existing maternal blood lead variable in the IEUBK model Materials are under review by OSRTI management The final document will be posted on the TRW website

13 All-Ages Lead Model (AALM) Further developed the AALM and coordinated a beta test of the model within the TRW and ATSDR

14 Short-term and Acute Exposures to Lead Developed guidance on how to address short-term and acute exposures to lead The final document will be posted on the TRW website

2013 TRW Annual Reportor Lead 3

15 Development ofFrequently Asked Questions Soil Holding Times Acute Inhalation Exposures Developed FAQ on holding times associated with soil and dust samples The final soil holding FAQ was posted on the TRW website

16 TRW Lead Committee Webpage Update Updated the TRW Lead Committee webpage

17 Lead Sampling Plan for In Vitro Bioavaiability (IVBA) Assay Convened a joint TRW Lead-Bioavailability Subcommittee working group to develop soil sampling plan for collecting samples for the IVBA assay Provided recommendations to OSWER stakeholders on using IVBA information at lead sites as part of site characterization and screening

18 Arsenic Relative Bioavailability (RBA) Recommendations Implemented changes to the RSL document and website

19 Soil Ingestion Rate Continued discussion on updating the recommended soil ingestion rate

Communication Training and Outreach

I Hotline Responded to 68 requests for assistance in CY 2013 Ofthese call s approximately 70 requests were from state and federal agencies with the remainder from other sources (public non-governmental organizations and engineering and consulting firms) Four requests were from outside the US (Chi na Poland Australia and Canada) Approximately 60 of the requests concerned the IEUBK model the All Ages Lead Model or the Adult Lead Methodology Of the remainder the majority of the requests pertained to gardening exposure screening levelspolicy or guidance-related questions

2 PresentationsTraining Supported development of a TRW Lead Committee training video and IEUBK Model Training Participated in Clu-In webinars and SOT conference in San Antonio TX Participated in an information exchange and provided training on the IEUBK model with China (in conjunction with the Natural Resource Defense Council) in June

a) Ballew M Brown J Burgess M Follansbee M Stifelman M Thayer B (2013) Estimation ofdietary lead exposure for US children using a new method implications for the Integrated Exposure Uptake Biokinetic Model for Lead in Chi ldren (Abstract 1251) Presented at the 52nd Society ofToxicology conference March 10-14 2013 San Antonio TX

b) Brown J Burgess M Stifelman M Follansbee MH Thayer B Flavin N (2013) Using energy data for estimating ventilation rates for the Integrated Exposure Uptake Biokinetic Model for Lead in Children (Abstract 1252) Presented at the 52nd Society ofToxicology conference March 10- 142013 San Antonio TX


c) Follansbee MH (2013) Peer review meeting report on the adaptation of the IEUBK Model to China Prepared for Natural Resources Defense Counci l Delivered presentation June 25-26 Final report delivered July 3 2013

d) Madda1oni M Stifelman M Burgess M Partridge C EverettS Follansbee MH (20 13) EPAs development of default exposure factors Updates to the IEUBK model Presented at the 29th Annual International Conference on Soi ls Sediments Water and Energy October2l-24 2013 Amherst Massachusetts Association for Environmental Health amp Sciences Foundation Inc

e) Scheckel KG Miller BW Li L (20 13) Challenges of Pb immobilization and risk assessment 246th ACS National Meeting Indianapolis IN (N)

f) Cheng Z Maddaloni M Scheckel KG (2013) Lead stabilization and arsenic mobilization by phosphate and alternative amendments Implications on urban soil remediation and urban agriculture 246th ACS National Meeting Indianapolis IN 2013 (N)

g) Basta NT Minca KK Scheckel KG Moser ME (2013) Are phosphorus in situ Pb stabilization treatments equal 246111 ACS National Meeting Indianapolis IN 2013 (N)

h) Schadt CW Sullivan-Guest TS Scheckel KG Jardine PM Basta NT (2013) Understanding microbial communities lead availability and their potential Interactions at an abandoned firing range in Oak Ridge TN 246111 ACS National Meeting Indianapoli s IN 2013 (N)

i) Miller BW Scheckel KG Bradham KD Th omas OJ (2013) Bioavailable and bioaccess ible pools of soi l bound metal(loid)s Resu lts from in vitro extraction X-ray absorption spectroscopy and in-vivo feeding studies International Union on Pure and Applied Chemistry Istanbu l Turkey (I)

j) Scheckel KG Miller BW Bradham KD Thomas DJ (2013) Role of Phosphate Amendments on Pb and As Bioavailability 1211 International Conference on the Biogeochemistry ofTrace Elements Athens GA ( I)

k) Chaney RL Zia MH Codling EE Scheckel KG (2013) Bioaccessibi lity Estimates for Soil Pb Should Correl ate with Human Bioavailability ofTreated Soils 12111 International Conference on the Biogeochemistry ofTrace Elements Athens GA (I)

I) Ne lson CM Gilmore TM Harrington JM Scheckel KG Miller BW Bradham KD (20 13) Evaluation of a Low-cost Commercially Available Extraction Device for Assessing Lead Bioaccessibility in Contam inated Soi ls 12111

International Conference on the Biogeochemistry ofTrace Elements Athens GA (I)

3 Website Updated self-guided training s lides o n lead risk assessment available via the internet added TRW Lead Committee Annual Reports (2012) and updated responses to frequent questions (compiled from inquiries made to the TRW Lead Committee hotline) Added the USGS Background Soil Lead Study (Smith et al 20 13) includin g an interactive map and links to state-specific results (ie maps data tables)


4 Lead Committee Annual Meeting Held October 28- October 30 2013 at the Gulf Breeze Research Laboratory in Gulf Breeze Fl Members of the Lead Committee met to work on projects and plan activities for 20 14

Coordination with Regions EPA Program Offices and Other Federal Agencies

Region 2 amp ORD Supported Regional Applied Research Efforts (RARE) grants on addressing lead and arsenic in urban soils

Region 3 Provided site consultation for a site in Philadelphia (JT Lewis) on sampli ng and analysis procedures

Region 8 Responded to a Criminal Investigation Division request to model worker exposure from welding on a bridge coated in lead-based paint Provided comments on the Revised Proposed Plan for the Anaconda and supported efforts for a potential lead site in Pueblo CO

Region 9 Provided site consultation for Eureka NV site (removal site not listed on NPL)

Region 10 Provided technical support for addressing concerns with sampli ng procedures of lead shot

US Geological Survey (USGS) Coordinated the application of USGS background soil lead study on the TRW webpage

Agencyfor Toxic Substances and Disease Registry (ATSDR) Coord inated with ATSDR to align the response to the CDC blood lead reference value Participated in discussions regarding the Residential Lead Sites Handbook Coordinated an EPA-ATSDR beta test of the most recent version of the AALM

Montana Department ofEnvironmental Quality Provided technical assistance on potential lead exposure found in indoor firing ranges

Coordination with Other Nongovernment Groups

TerraGraphics The Committee is working with TerraGraphics to coordinate a site specific assessment of lead concentration in soil and dust data from Bunker HillCoeur d Alene Basin

Natural Resources Defense Council (NRDC) Participated in an infonnation exchange and provided training on the IEUBK model with Chinese delegates (in conjunction with the NRDC) in June


Childrens Health Protection Advisory Committee (CHPAC) Supported collaborative efforts to update the Lead Strategy

Global Alliance on Health and Pollution (GAHP) Provided technical support to d iscussion of remedial techno logies

American Water Works Association (A WWA) Received reques t for the release date of the IEUBK model update memos

2013 TRW Annual Rep ort f or Lead 7

membership please submit nominations to Dana Stalcup by February 2014 at the contact information listed below

I would like to thank you for your continued support of these committees The Superfund Remedial Program highly values the technical expertise of your staff and their continued involvement in these critical issues If you have any questions or comments regarding the TRW please contact Dana Stalcup at StalcupDanatepagov or (703 ) 603-8702

cc Mathy Stani slaus OSWER Barry Breen OSWER Nigel Simon OSWERIOPM Barbara Hostage OSWERIOPM Lawrence M Stanton OSWERIOEM Barnes Johnson OSWERORCR David Lloyd OSWEROBLR Reggie Cheatham OSWERIFFRRO Carolyn Hoskinson OSWERIOUST Elliott Gilberg OECAOSRE David Kling OECAFFEO John Michaud OGCSEWRLO OSRTI Managers NARPM Co-Chairs TRW Committee Members



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memo regarding technical review workgroup for … · child's hands. the draft recommendation...

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