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GLIN==> assessing impacts of climate change on public treatment works in the Great Lakes region

[Federal Register: March 29, 2007 (Volume 72, Number 60)]
[Page 14807-14808]
 From the Federal Register Online via GPO Access [wais.access.gpo.gov]



[Docket ID No. EPA-HQ-ORD-2007-0240; FRL-8293-8]

A Screening Assessment of the Potential Impacts of Climate Change
on the Costs of Implementing Water Quality-Based Effluent Limits at
Publicly Owned Treatment Works in the Great Lakes Region

AGENCY: Environmental Protection Agency (EPA).

ACTION: Notice of public comment period.


SUMMARY: EPA is announcing a 30-day public comment period for the draft
document titled, ``A Screening Assessment of the Potential Impacts of
Climate Change on the Costs of Implementing Water Quality-Based
Effluent Limits at Publicly-Owned Treatment Works in the Great Lakes
Region'' (EPA/600/R-07/034A). The document was prepared by the National
Center for Environmental Assessment (NCEA) within EPA's Office of
Research and Development.
    EPA is releasing this draft document solely for the purpose of pre-
dissemination peer review under applicable information quality
guidelines. This document has not been formally disseminated by EPA. It
does not represent and should not be construed to represent any Agency
policy or determination. EPA will consider any public comments
submitted in accordance with this notice when revising the document.

DATES: The 30-day public comment period begins March 29, 2007, and ends
April 28, 2007. Technical comments should be in writing and must be
received by EPA by April 28, 2007.

ADDRESSES: The draft ``A Screening Assessment of the Potential Impacts
of Climate Change on the Costs of Implementing Water Quality-Based
Effluent Limits at Publicly-Owned Treatment Works in the Great Lakes
Region'' is available primarily via the Internet on NCEA's home page
under the Recent Additions and the Data and Publications menus at
<A HREF="http://www.epa.gov/ncea";>http://www.epa.gov/ncea</A>.
A limited number of paper copies are available
from NCEA's Technical Information Staff (telephone: 202-564-3261,
facsimile: 202-565-0050). If you are requesting a paper copy, please
provide your name, your mailing address, and the document title.
    Comments may be submitted electronically via
        <A HREF="http://www.regulations.gov";>http://www.regulations.gov</A>,
        by mail, by facsimile, or by hand delivery/
courier. Please follow the detailed instructions provided in the
SUPPLEMENTARY INFORMATION section of this notice.

FOR FURTHER INFORMATION CONTACT: For information on the public comment
period, contact the Office of Environmental Information Docket;
telephone: 202-566-1752; facsimile: 202-566-1753; or e-mail:
<A HREF="mailto:ORD.Docket@epa.gov";>ORD.Docket@epa.gov</A>.

    For technical information, contact Thomas Johnson, NCEA; telephone:
202-564-3406; facsimile: 202-564-2018; or e-mail:
<A HREF="mailto:Johnson.thomas@epa.gov";>Johnson.thomas@epa.gov</A>.


I. Information About the Project/Document

    This report describes the potential scope and magnitude of climate
change impacts on the cost of meeting water quality based effluent
limits at publicly owned treatment works (POTWs) discharging to rivers
and streams in the Great Lakes Region (GLR). The report is a screening
level analysis focusing on costs of meeting water quality based
effluent limits for a single pollutant, biochemical oxygen demand at
all POTWs in the region discharging to currently impaired stream
reaches. POTWs discharge billions of gallons of effluent daily to
receiving water bodies throughout the United States. One of the
principal pollutants associated with POTW effluent is organic matter.
Naturally, occurring microbial populations in receiving waters consume
dissolved oxygen (DO) as they decompose organic matter. Low DO is a
significant source of water quality impairment. Climate change in many
parts of the country is expected to increase the proportion of rainfall

[[Page 14808]]

occurring in high-intensity events, resulting in increased stormwater
runoff. At the same time, a shift towards more intense storms is
expected to decrease infiltration and groundwater recharge, resulting
in reduced low-flow periods between events. Increased air temperatures
and evapotranspiration could also result in reduced streamflow between
rainfall events. Reduced low-flow events in receiving waters could
result in increased water quality impairment below POTWs due to reduced
dilution of effluent.

II. How To Submit Technical Comments to the Docket at
<A HREF="http://www.regulations.gov";>http://www.regulations.gov</A>

    Submit your comments, identified by Docket ID No. EPA-HQ-ORD-2007-
0240 by one of the following methods:
     <A HREF="http://www.regulations.gov:";>http://www.regulations.gov:</A>
        Follow the on-line instructions for submitting comments.
     E-mail: <A HREF="mailto:ORD.Docket@epa.gov";>ORD.Docket@epa.gov</A>.
     Fax: 202-566-1753.
     Mail: Office of Environmental Information (OEI) Docket
(Mail Code: 2822T), U.S. Environmental Protection Agency, 1200
Pennsylvania Avenue, NW., Washington, DC 20460. The phone number is
     Hand Delivery: The OEI Docket is located in the EPA
Headquarters Docket Center, EPA West Building, Room 3334, 1301
Constitution Avenue, NW., Washington, DC. The EPA Docket Center Public
Reading Room is open from 8:30 a.m. to 4:30 p.m., Monday through
Friday, excluding legal holidays. The telephone number for the Public
Reading Room is 202-566-1744. Such deliveries are only accepted during
the docket's normal hours of operation, and special arrangements should
be made for deliveries of boxed information.
    If you provide comments by mail or hand delivery, please submit one
unbound original with pages numbered consecutively, and three copies of
the comments. For attachments, provide an index, number pages
consecutively with the comments, and submit an unbound original and
three copies.
    Instructions: Direct your comments to Docket ID No. EPA-HQ-ORD-
2007-0240 Please ensure that your comments are submitted within the
specified comment period. Comments received after the closing date will
be marked ``late,'' and may only be considered if time permits. It is
EPA's policy to include all comments it receives in the public docket
without change and to make the comments available online at <A HREF="http://www.regulations.gov";>http://www.regulations.gov</A>
, including any personal information provided,

unless a comment includes information claimed to be Confidential
Business Information (CBI) or other information whose disclosure is
restricted by statute. Do not submit information that you consider to
be CBI or otherwise protected through
<A HREF="http://www.regulations.gov";>http://www.regulations.gov</A> or e-mail.
The <A HREF="http://www.regulations.gov";>http://www.regulations.gov</A>
Web site is an ``anonymous access''
system, which means EPA will not know your identity or contact
information unless you provide it in the body of your comment. If you
send an e-mail comment directly to EPA without going through
<A HREF="http://www.regulations.gov";>http://www.regulations.gov</A>,
your e-mail address will be automatically captured
and included as part of the comment that is placed in the public docket
and made available on the Internet. If you submit an electronic
comment, EPA recommends that you include your name and other contact
information in the body of your comment and with any disk or CD-ROM you
submit. If EPA cannot read your comment due to technical difficulties
and cannot contact you for clarification, EPA may not be able to
consider your comment. Electronic files should avoid the use of special
characters, any form of encryption, and be free of any defects or
viruses. For additional information about EPA's public docket visit the
EPA Docket Center homepage at
<A HREF="http://www.epa.gov/epahome/dockets.htm";>http://www.epa.gov/epahome/dockets.htm</A>
Docket: Documents in the docket are listed in the
<A HREF="http://www.regulations.gov";>http://www.regulations.gov</A> index.
Although listed in the index, some
information is not publicly available, e.g., CBI or other information
whose disclosure is restricted by statute. Certain other materials,
such as copyrighted material, are publicly available only in hard copy.
Publicly available docket materials are available either electronically
at <A HREF="http://www.regulations.gov";>http://www.regulations.gov</A>
or in hard copy at the OEI Docket in the EPA Headquarters Docket Center.

    Dated: March 26, 2007.
David Bussard,
Acting Director, National Center for Environmental Assessment.
 [FR Doc. E7-5798 Filed 3-28-07; 8:45 am]


Comments: http://www.epa.gov/fedrgstr/comments.htm
Search: http://epa.gov/fedreg/search.htm
EPA's Federal Register: http://epa.gov/fedreg/

Alex J. Sagady & Associates        http://www.sagady.com

Environmental Enforcement, Permit/Technical Review, Public Policy, 
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