Transcript USEPA Reg Update

MRWA Annual Meeting
Bangor, Maine
USEPA Regulatory Update
Maureen R. McClelland
December 10, 2014
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U.S. Environmental Protection Agency
Overview
• Regulatory Process
• Proposed Regulatory Determinations
• UCMR 3
• Legionella
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Generalized Flow of
Regulatory Processes
Draft CCL
Final CCL
Draft UCMR
Public review and comment
Preliminary
Regulatory
Determinations
Final Regulatory
Determinations
Proposed Rule
(NPDWR)
Final UCMR
UCMR Monitoring
Results
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No further action if make
decision to not to regulate (may
develop health advisory).
Final Rule
(NPDWR)
Six Year Review of
Existing NPDWRs
Statutory Requirements and the Drinking Water
Regulatory Process
(1996 SDWA Amendments*)
1) Contaminant Candidate List (CCL) – SDWA requires EPA to
develop a list of contaminants that are known or anticipated to occur
in drinking water and to publish the list every five years.
2) Regulatory Determination – EPA must decide whether or not to
regulate at least five CCL contaminants with a national primary
drinking water regulation (NPDWR) after evaluating criteria specified
under the 1996 SDWA; Publish determinations on a five year cycle.
3) Regulation Development - If EPA decides to regulate a contaminant,
the Agency has 24 months to propose and 18 months to finalize the
health goal and the NPDWR.
*SDWA Section 1412(b)(1)
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Three Regulatory Determination Criteria Specified under
the 1996 amendments to SDWA*
SDWA requires EPA to publish a MCLG and promulgate an NPDWR
for a contaminant if the Administrator determines that -
1) The contaminant may have an adverse effect on the
health of persons;
2) The contaminant is known to occur or there is
substantial likelihood that the contaminant will
occur in public water systems with a frequency and
at levels of public health concern; and
3) In the sole judgment of the Administrator, regulation of such
contaminant presents a meaningful opportunity for health risk
reduction for persons served by public water systems.
*SDWA Section 1412(b)(1)
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CCL 3 Proposed Regulatory
Determinations
• Published in FR. October 20, 2014.
• Agency is making a preliminary determination
to regulate Strontium and
• To Not Regulate four other contaminants:
1,3, dinitrobenzene, dimethoate, terbufos and
terbufos sulfone
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Strontium
• Primary target of strontium exposure is the
bone.
• Infants, children and adolescents are of
particular concern as a sensitive population.
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Occurrence
• National Inorganics and Radionuclides Survey
99% with detectable concentrations
7% > 1500 ug/L
14% > 750 ug/l
• National Ambient Water Quality of Public Supply
Wells Study
– 100% had detects
– 12% > 1500 ug/l
– 25% > 750 ug/l
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Meaningful Opportunity for Health Risk
Reduction
• Based on exposed population
• Potential impacts on sensitive populations
and
• Estimated exposure from other sources.
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Next Steps
• Additional monitoring results from UCMR3
will assist EPA in making the final regulatory
determination
• More extensive field testing of treatment
technologies to assess the effectiveness of
Strontium removal in PWS prior to
promulgating a NPDWR
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Unregulated Contaminant
Monitoring Rule
UCMR3
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UCMR 3
• Final rule – April 16, 2012
• 28 chemicals and 2 viruses
• Monitoring cycle - 2013-2015
UCMR3
•
•
•
•
•
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7 Hormones
9 VOCs
1 SOC
4 Metals
Oxyhalide Anion
6 Perfluorinated chemicals
UCMR 3 Changes
•
Established that selected transient systems are
subject to UCMR monitoring requirements.
•
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Required that a selected group of 800 PWSs
serving 1,000 or fewer individuals monitor for
enterovirus and norovirus.
U.S. Environmental Protection Agency
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Legionella
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Legionella
• Water is the major natural environment for
legionella, and the bacteria are found
worldwide in many different natural and
artificial environments.
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Legionella Guidance Document
• Jan 2014 – EPA formed a Multi-Agency Task
Force to assist with development of the
document
- EPA, CDC, States (NV, PA, MN, WA,
NY, OH, MD)
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Purpose
• Characterize the current body of knowledge
regarding the use and effectiveness of
available technologies for the treatment and
control of Legionella
• Provide an overview of the regulatory
implications related to the technologies.
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Audience
• States and primacy agencies,
• Affected facilities and
• System operators
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Scope
• Ecology, physiology, occurrence and other
topics relevant to the bacterial contaminant
• Discuss the difference of premise plumbing
and a public water system
• Provide information on the current knowledge
of drinking water treatment technologies
available for the prevention and remediation
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Scope
• Characterization of the effectiveness of
different treatment technologies and
approaches against Legionella, associated
water quality issues, recommended
operational conditions and regulatory
implications.
Anticipated Release – Spring 2015
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Websites
• www.epa/safewater
www.regulations.gov
• http://water.epa.gov/lawsregs/rulesregs/sdwa/ucmr/
ucmr3/upload/UCMR3_FactSheet_List1.pdf
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Merry Christmas One and All !!!
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