Document ID: EPA-HQ-OW-2007-1189-0059
Agency: epa
Document Type: Supporting & Related Material
Title: 
Posted Date: 2008-04-07T04:00Z

NOTE 

To: 		EPA Water Docket OW-2007-1189

From:		Tracy Bone, USEPA

Through:	Eric Burneson, Chief

		Targeting and Analysis Branch

Environmental Protection Agency (EPA) staff met with staff and members
of the American Water Works Association (AWWA) Contaminant Candidate
List Technical Advisory Workgroup (TAW) on April 1, 2008 (attendance
list attached).  AWWA requested the meeting to help them better
understand the Drinking Water Contaminant Candidate List 3 – Draft
(CCL3) in preparation for submitting their public comments on the
action.

The majority of the questions asked by TAW members were concerning
finding background information to explain the screening and scoring
decisions made as the universe of contaminants were narrowed to the
draft CCL 3.   For example, TAW members requested specific information
explaining the post-model review process, selection of chemicals, and
why some chemicals that the classification models categorized as
“NL” or not list decisions were selected for the draft CCL 3.  In
response to each question, EPA indicated the support document or page of
the Federal Register (FR) notice that provides the information on the
decision process.  When specific information was not available from the
FR notice or support documents in the docket, EPA provided no further
information, but welcomed TAW members to submit their comments on the FR
notice during the public comment period.   

TAW members also asked about the intent of the CCL process and the
criteria for considering contaminants for further research information
versus the determination of further regulation (as quoted from the Safe
Drinking Water Act).  EPA responded that the CCL process identifies
contaminants that may require regulation as cited in Section 1412 (b). 
The criteria to whether a contaminant may require regulation is provided
under Section 1412 (a).  EPA staff noted that additional information may
be needed to make regulatory determinations for some contaminants on the
CCL; however, regulatory determination for contaminants is the goal for
the CCL process.

TAW members enquired as to whether the ability to treat a contaminant in
a drinking water system is a criterion for listing decisions. EPA
responded that treatment may be a reasonable consideration for the
regulatory determination process, but that we did not consider it for
the draft CCL 3.

TAW members also asked a few questions concerning the final CCL 3.  For
example: when will EPA finalize the draft CCL 3; would EPA be including
a breakdown of research needs; and would EPA be conducting or requesting
further data on groups of contaminants (e.g., pharmaceuticals).  EPA
staff noted that the Regulatory Agenda schedule lists the final CCL 3
publication for August 2009.  EPA also identified the various places in
the FR notice of the draft CCL 3 that already requested data on
contaminants (e.g., pharmaceuticals), and invited TAW members to provide
comments on how EPA could make the CCL 3 decision process more
transparent.  EPA staff also noted that EPA always welcomes further
opportunities for stakeholder outreach and input.



American Water Works Association

Technical Advisory Workgroup Meeting

April 1, 2008

Attendees	Affiliation

Kent Nelson	Contra Costa Water District

Craig Adams, PhD	Missouri S & T

Matthew Lueders	Missouri S& T

Tracy Bone	EPA 

Meredith Benedict	EPA

Eric Burneson	EPA

Charles Hertz	Aqua Pennsylvania, Inc.

Chad Siedel, PhD	SDWA

Alexa Obolensky, PhD	Philadelphia Water Department

Thomas Carpenter	EPA

Shane Snyder, PhD	Southern Nevada Water Authority

Jeffrey Rosen	Clancy Environmental Consultants

Gary Lynch	Park Water Company

Zaid Chowdhury	Malcolm Pirnie, Inc

Marilyn Marshall, PhD	University of Arizona

Becky Hoffman	University of Wisconsin, Wisconsin State Laboratory

Kellogg Schwab, PhD	John Hopkins School of Public Health

Paul Rochelle, PhD	Metropolitan Water District of Southern California

Mark Gibson	Clancy Environmental Consultants

Steve Via 	American Water Works Association

Alan Roberson	American Water Works Association

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