&EPA
United States
Environmental Protection
Agency
                        Public Webinar:
  Revisions to the Unregulated Contaminant
                 Monitoring Rule (UCMR 4)
                      Meeting Presentations
                           Held January 13, 2016
     USEPA, Office of Ground Water and Drinking Water
Office of Water (MLK 140)   EPA 815-R-16-001           January 2016

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Proposal: Revisions to the Unregulated Contaminant Monitoring Rule (UCMR 4) Webinar Presentations
         Revisions to the Unregulated
  Contaminant Monitoring Rule (UCMR 4)
           for Public Water Systems
                    Public Webinar


                   January 13, 2016
              Meeting starts at 1:00 p.m. E.T.


                       USEPA
          Office of Ground Water and Drinking Water
                   WELCOME
                 Gregory J. Carroll, USEPA
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Proposal: Revisions to the Unregulated Contaminant Monitoring Rule (UCMR 4) Webinar Presentations
               General Meeting Information
       • Purpose
          • Review of EPA's proposed rule and discussion with the
            public
       • Webinar lines are muted to minimize background
         noise
          • 10 minute break at approximately 2:30 p.m.
       • Public questions and discussion at the  end of the
         webinar
 January 2016
          U.S. Environmental Protection Agency
                               Agenda
        1:00
        1:15
        1:45
        2:15
        2:30
        2:40
        3:00
        3:05
Introduction
Proposed UCMR 4
UCMR 4 Sampling Design
UCMR 4 Reporting
Break
UCMR 4 Laboratory Approval Process & MRLs
Submitting Public Comments
Statements from Webinar Participants, Q&A
and Discussion
        4:45   Closing Remarks
(15 minutes)
(30 minutes)
(30 minutes)
(15 minutes)
(10 minutes)
(20 minutes)
(5 minutes)
(100 minutes)

(5 minutes)
 January 2016
          U.S. Environmental Protection Agency
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Proposal: Revisions to the Unregulated Contaminant Monitoring Rule (UCMR 4) Webinar Presentations
                         Introduction
                         Brenda Parris, USEPA
             UCMR 4 Introduction Overview

        Regulatory background for UCMR
          •  Safe Drinking Water Act (SDWA) authority
          •  Relationship to:
             • Candidate Contaminant List (CCL)
             • Unregulated Contaminant Monitoring Rule (UCMR)
             • Regulatory Determination
             • Six-Year Review
        UCMR
          •  Objectives
          •  Approach
          •  Implementation
 January 2016
U.S. Environmental Protection Agency
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Proposal: Revisions to the Unregulated Contaminant Monitoring Rule (UCMR 4) Webinar Presentations
                               SDWA

         Passed in 1974, SDWA authorized EPA to set
         enforceable health standards for contaminants in
         drinking water
          • National Primary Drinking Water Regulations (NPDWRs)
         1996 SDWA amendments  changed the process of
         developing and reviewing NPDWRs
          • CCL
          • UCMR
          • Regulatory Determination
          • Six-Year Review
 January 2016
U.S. Environmental Protection Agency
   General Flow of SDWA Regulatory Processes
List unregulated
contaminants*
Contaminant
Candidate List^

2~
List and collect
monitoring data for
up to 30 unregulated
contaminants
Unregulated •<
Contaminant
Monitoring Rule

r
1
Determine whether
at least five need a
drinking water
standard*
Regulatory
Determ inations^_A
T -
r
lfyes_
r
"^^-Opportunity f
Develop or revise
the drinking water
standard*
Regulation
Development __,
>
                                                          If yes
                                                       Reviews decide
                                                       whether to revise
                                                        the standard
                                                       Six-Year Review
     *For these three stages, we like to have increased specificity and confidence in the type of supporting data used
     (e.g. health and occurrence). SDWA requires that we used best available data to make our decisions.
 January 2016
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Proposal: Revisions to the Unregulated Contaminant Monitoring Rule (UCMR 4) Webinar Presentations
                                CCL

        List of priority unregulated contaminants
          • Chemicals and microbes
          • Published every five years
          • Known or anticipated to occur in public water systems
            (PWSs)
          • May require regulation  under SDWA
 January 2016
U.S. Environmental Protection Agency
                           Draft CCL 4

       • Published February 4, 2015
       • Carried forward the final list of CCL 3 contaminants
        (multi-step process evaluating ~7,500 contaminants)
       • Requested and evaluated contaminant nominations
        from the public
       • Evaluated any new data from previous negative
        regulatory determinations
       In establishing the proposed list of contaminants for UCMR 4, EPA started
       with this priority set of contaminants, which includes 100 chemicals or
                      chemical groups and 12 microbes
 January 2016
U.S. Environmental Protection Agency
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Proposal: Revisions to the Unregulated Contaminant Monitoring Rule (UCMR 4) Webinar Presentations
                                UCMR
         SDWA section 1445(a)(2), as amended in 1996,
         redesigned the UCMR Program; requirements
         included:
          • Issue list of no more than 30 unregulated contaminants,
            once every 5 years
          • Require PWSs serving population >10,000 people as well as
            a nationally representative sample of PWSs serving <10,000
            people to monitor
          • Store analytical results in the National Drinking Water
            Contaminant Occurrence Database (NCOD)
          • Direct implementation - EPA manages program in
            partnership with states
          • EPA funds testing/analytical costs for small PWSs
 January 2016
U.S. Environmental Protection Agency
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                          UCMR History

         UCMR 1 (2001-2005, 26 contaminants)
         UCMR 2 (2007-2011, 25 contaminants)
         UCMR 3 (2012-2016, 30 contaminants)
          • Monitoring concluded in 2015
              •  Data review will occur in 2016
         UCMR 4 (2017-2021, 30 contaminants)
          • Proposed in the FR on December 11, 2015
          • Final publication anticipated in late 2016/early 2017

                  National occurrence data publically available:
            http://www.epa.gov/dwucmr/occurrence-data-unregulated-
                        contaminant-monitoring-rule
 January 2016
U.S. Environmental Protection Agency
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Proposal: Revisions to the Unregulated Contaminant Monitoring Rule (UCMR 4) Webinar Presentations
               Objective of UCMR Program

        Collect national occurrence data for suspected
        drinking water contaminants that do not have
        health-based standards set under the SDWA
          • Drinking water occurrence information is used to
           support future regulatory actions to protect public
           health
          • Public will benefit from information about whether or
           not unregulated contaminants are present in their
           drinking water
 January 2016
U.S. Environmental Protection Agency
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                       UCMR Approach
        UCMR established a 3-tiered approach for monitoring
          • Assessment Monitoring (List 1)
          • Screening Survey (List 2)
          • Pre-Screen Testing (List 3)
        Based on:
          • Availability and complexity of analytical methods
          • Laboratory capacity
          • Sampling frequency
          • Relevant universe of PWSs
          • Other considerations (e.g., cost/burden)
 January 2016
U.S. Environmental Protection Agency
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Proposal: Revisions to the Unregulated Contaminant Monitoring Rule (UCMR 4) Webinar Presentations
           Typical UCMR System Applicability
   Assessment Monitoring
    (List 1 Contaminants)
                      System Type
CWS1 & NTNCWS2
              Systems Serving    Systems Serving
                 > 10,000          < 10,000
              All systems (~4,200)
                  800 randomly selected
                      systems
     Screening Survey
    (List 2 Contaminants)
CWS & NTNCWS
All systems (~410) serving
 more than 100,000, and
 ~320 randomly selected
systems serving 10,001 to
     100,000
480 randomly selected
     systems
     Pre-Screen Testing
    (List 3 Contaminants)
        May be conducted by a limited number of PWSs
   Community Water System
   2Non-transient Non-community Water System
 January 2016
  U.S. Environmental Protection Agency
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                EPA Implementation Roles

         Review, track and determine PWS applicability and
         monitoring progress
         Coordinate Laboratory Approval Program
         Provide technical support for Regions, states,
         PWSs and laboratories
         Coordinate outreach
         Assist and support Regional compliance efforts
 January 2016
  U.S. Environmental Protection Agency
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Proposal: Revisions to the Unregulated Contaminant Monitoring Rule (UCMR 4) Webinar Presentations
                EPA Implementation Roles


        Small PWS support:
          •  EPA funds small system testing including kits, sample
            analysis and shipping
          •  Manages sample kit distribution
          •  Maintains lab and implementation contracts to support
            UCMR
          •  Responsible for data review

        Large and small PWS support:
          •  Safe Drinking Water Accession and Review System (SDWARS)
            reporting system and users
          •  Prepares data for NCOD
 January 2016
U.S. Environmental Protection Agency
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          States' Role in the UCMR 4 Program

        State participation is voluntary
        EPA has established Partnership Agreements (PAs)
        under previous UCMRs and will continue to do so for
        UCMR4
          •  States, tribes and territories help EPA implement the UCMR
            program; help to ensure high data quality
          •  Review and revise State Monitoring Plans (SMPs)
          •  Update system information to preload into SDWARS
          •  Review and approve proposed Ground Water Representative
            Monitoring Plans (GWRMPs)
          •  Compliance assistance
          •  Notification and  instructions for systems
 January 2016
U.S. Environmental Protection Agency
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Proposal: Revisions to the Unregulated Contaminant Monitoring Rule (UCMR 4) Webinar Presentations
               Regulatory Determination
        Determine which contaminants may have an adverse
        effect on human health
        Determine if a contaminant occurs in drinking water at
        a frequency and at levels of public health concern
        Meaningful opportunity for health risk reduction
        Made every five years
        Determinations for at least five contaminants from the
        CCL
        UCMR helps  provide the necessary data
 January 2016
U.S. Environmental Protection Agency
                                                             19
                      Six-Year Review

        Reviews existing NPDWRs and determines if a
        revision is appropriate
         • Includes the re-evaluation of exposure to regulated
           contaminants based on their health effects and
           occurrence in drinking water
        Any revisions to existing NPDWRs must maintain
        protection or provide for greater health protection
        Made every six years
 January 2016
U.S. Environmental Protection Agency
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Proposal: Revisions to the Unregulated Contaminant Monitoring Rule (UCMR 4) Webinar Presentations
                  Proposed UCMR 4
                     Melissa Simic, USEPA
            Proposed UCMR 4 - Overview

       Timeline
       Notable proposed changes from UCMR 3
       Contaminant selection process
       Proposed contaminants and analytical methods
       Estimated costs
 January 2016
U.S. Environmental Protection Agency
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Proposal: Revisions to the Unregulated Contaminant Monitoring Rule (UCMR 4) Webinar Presentations
UCMR 4 Timeline






December11,2015
UCMR 4 Proposal
Published
Public Comment
Period Begins
UCMR 4 Development
Review Rule Drafting
1
Jv
2013 - 2014 2015
T T It
May 15, 2013
June 25, 2014
UCMR 4
Stakeholder
Meetings

Public Commen
Period Ends
February 9, 201
1


Late 201 6/ Early 201 7
UCMR 4 Final Rule
Published


Pre-implementation Monitoring
i Activities ' 	 -y 	 '
1
2016
T
December 31, 201 5 |~
Applicability Date L




._-/\__ UCMR 4 Stakeholder Meet
L^£ January 13, 2016
January 2016

1 A
'_J_ \
2017 2018-2020 2021 ^1
t T
GWRMP Submittals | Process

Complete
Reporting/
Analysis of
Data
ng

U.S. Environmental Protection Agency 23
              Notable Proposed Changes

       Analytes
       Applicability
       Monitoring time frame
       Sampling frequency
       Sampling locations
       Reporting requirements
 January 2016
U.S. Environmental Protection Agency
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Proposal: Revisions to the Unregulated Contaminant Monitoring Rule (UCMR 4) Webinar Presentations
            UCMR 4 Candidate Contaminants -
                 Information Compendium
        Provides the initial list of contaminants that EPA
        considered
        Outlines the contaminant prioritization process
        Indicates the reason a contaminant was not
        included on the proposed list
        Provides supporting information for each of the
        proposed contaminants
 January 2016
U.S. Environmental Protection Agency
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            UCMR 4 Candidate Contaminants -
                 Information Compendium

      •  Primary source for the information is the CCL program
         • Reviewed and evaluated other publically available data
          sources
      •  Generally includes five sections:
         • Background & Use
         • Health Effects
         • Production & Release
         • Occurrence in Water
         • Persistence & Mobility
      •  The document is located in the docket
 January 2016
U.S. Environmental Protection Agency
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Proposal: Revisions to the Unregulated Contaminant Monitoring Rule (UCMR 4) Webinar Presentations
                   UCMR 4  Prioritization  Process
           Draft Contaminant Candidate List (CCL) 4
              [100 chemicals or chemical groups +
                          121 microbes]
              45 CCL + 48 related non-CCL analytes1
                          [16 methods]
    UCMR4 Candidates:
31 CCL + 18 related non-CCL
   analytes   [9 methods]
 + other contaminants under/
       consideration2
                        Propose up to 30
                        contaminants for
                            comment
                                         7
                                      • Ndl monitored for on UCMR 2 or UCMR 3
                                      • Anticipated to have national occurrence
                                        Have a completed & validated drinking water
                                      /nethod
                                                    Mofst contaminants in method group:
                                                    •/Have an available health assessment to facilitate
                                                    /egulatory determinations and/or high public concern
                                                    • Have critical health endpoints (e.g., likely and
                                                    suggestive carcinogens), active-use pesticides
                                                    • Have an occurrence data gap
                                                'orkgroup and stakeholder input
                                              Cost-effective method group
                                              Further evaluation of health and occurrence data
                                              Implementation factors (e.g., laboratory capacity)
                                                      After considering comments, publish up to
                                                      30 contaminants for UCMR 4 monitoring
                                                      tentatively starting in 2018
                                      1 Analytes with potential health effects of concern that can be measured concurrently,
                                      using the analytical methods for the CCL contaminants; creates a more cost-effective
                                      design and reduces the likelihood of needing to include them in a subsequent UCMR.
                                      2 Workgroup or stakeholder nominations

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                            Proposed  UCMR 4 Analytes
                                                                  )d 525.3 (SPE GC/MS)
       I microcystins"
           EPA Method 544 (SPE LC/MS/MS)
   EPA invites public comment on the following
   contaminants that were considered by the
   workgroup but not included in the proposed list:
   Legionella pneumophila and Mycobacterium
   avium, ammonia, and the pesticides
   vinclozolin, hexazinone and disulfoton.
                            butylated hydroxyanisole
                                               o-toluidine
quinolone
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Proposal: Revisions to the Unregulated Contaminant Monitoring Rule (UCMR 4) Webinar Presentations
                                 Cyanotoxins
EPA Method 544 (LC/MS/MS1)
Analyte
microcystin-LR
microcystin-LA
microcystin-LF
microcystin-LY
microcystin-RR
microcystin-YR
nodularin
EPA Health
Advisory (HA)2
1.6 u.g/L (ten-day HA for
school-age children and
adults);
0.3 u.g/L (ten-day HA for
young children)


Not available
Critical Health
Effect
Liver effects





Liver toxicity
Occurrence
Microcystins in water
supplies: 77 samples from
33 water supplies; Range of
detects = <0.15 - 0.36 [ig/L
(Haddixetal.,2007)





Not available
      'Liquid Chromatography/Tandem Mass Spectrometry
      2Total microcystins will also be measured by ADDA ELISA; EPA HA applies
 January 2016
U.S. Environmental Protection Agency
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                                 Cyanotoxins
EPA Method 545 (LC/ESI-MS/MS1)
Analyte
anatoxin-a
cylindrospermopsin
EPA Health
Advisory (HA)
Not available
3 [ig/L (ten-day HA for
school-age children
through adults);
0.7 [ig/L (ten-day HA for
bottle-fed infants and
young children)
Critical Health
Effect
Targets nervous system
Increased relative
kidney weight and
decreased urinary
protein
Occurrence
Florida Waters (Burns
2008), drinking water
max = 8.46 [ig/L
Florida Waters (Burns
2008), drinking water
range of detects = 8-97
Hg/L
        ^Liquid Chromatography Electrospray lonization-Tandem Mass Spectrometry
 January 2016
U.S. Environmental Protection Agency
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                                            Metals
EPA Method 200.81 (ICP-MS2)
Analyte
germanium
manganese
Health Reference
Level (HRL)
7.44 u.g/L3
300 u.g/L
Critical Health
Effect
Kidney, ureter, bladder-
changes in tubules
Central nervous system
effects
Occurrence
MRS4 drinking water
range of detects = 26-230
|ig/L; detected in 4 out of
989 samples
NIRS drinking water
median = 11.96 u.g/L;
detected in 672 out of
989 samples
       1Metalscan also be measured by alternate Standard Methods (SM) 3125 or SM 3125-09 or ASTM International D5673-10
       inductively Coupled Plasma-Mass Spectrometry
       3Based on OW's evaluation of the dose information in the critical study, the HRL should be about ten times larger (i.e.,
       0.744 to 7.44 ug/L)
       4National Inorganics and Radionuclides Survey, 1984-1986
  January 2016
U.S. Environmental Protection Agency
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                                         Pesticides
EPA Method 525.3 (SPE GC/MS1)
Analyte
alpha-
hexachlorocyclohexane
chlorpyrifos
dimethipin
Health Reference
Level (HRL)
0.006 ug/L
Not available
153 ug/L
Critical Health Effect
Cancer
Significant plasma and RBC
cholinesterase inhibition
Kidney, lungs, duodenum,
liver, glandular stomach,
heart, aortic artery, and
testes toxicity; decreased
body weight gain
Occurrence
NAWQA2 ambient water
median =0.011 iig/L;
detected in 21 out of 7,119
samples
PDF3 drinking water = not
detected in the 13 sites
sampled
TRI4 = 87 pounds released in 1
state in 2010
      1Solid Phase Extraction and Capillary Column Gas Chromatography-Mass Spectrometry
      2USGS, National Water-Quality Assessment Program (NAWQA)
      3Pesticide Data Program (POP)
      4Toxic Release Inventory (TRI)
  January 2016
U.S. Environmental Protection Agency
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Proposal: Revisions to the Unregulated Contaminant Monitoring Rule (UCMR 4) Webinar Presentations
                                  Pesticides
EPA Method 525.3 (SPE GC/MS)
Analyte
ethoprop
oxyfluorfen
prof en of os
Health Reference
Level (HRL)
1.25 ng/L
210 ng/L5
0.35 ng/L
Critical Health Effect
Cancer
Liver toxicity
Plasma and RBC
cholinesterase (ChE)
inhibition
Occurrence
POP drinking water = not
detected in the 13 sites
sampled
POP drinking water = not
detected in the 13 sites
sampled
POP drinking water = not
detected in the 13 sites
sampled
     5Human Health Benchmark for Pesticides
 January 2016
U.S. Environmental Protection Agency
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                                  Pesticides
EPA Method 525.3 (SPE GC/MS)
Analyte
tebuconazole
total permethrin (cis- &
trans-)
tribufos
Health Reference
Level (HRL)
210 ng/L
3.65 ng/L
7ng/L
Critical Health Effect
Decreased body weights,
absolute brain weights, brain
measurements and motor
activity in offspring
Cancer
Plasma cholinesterase (ChE)
inhibition
Occurrence
PDP drinking water median
detect = 0.01 iig/L; detected
at 4 out of 13 sites
California Drinking Water
Monitoring Data = not
detected in the 35 PWSs
sampled
PDP drinking water = not
detected in the 13 sites
sampled
 January 2016
U.S. Environmental Protection Agency
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                               Haloacetic Acids (HAAs)
                        EPA Method 552.3 (GC-ECD)1 or EPA Method 557 (IC-ESI-MS/MS)2
                                                       (Median cone, andtt
                                                          detections)
iromochloroacetic acid
BCAA)
iromodichloroacetic
acid (BDCAA)
zhlorodibromoacetic
acid (CDBAA)

ribramoacetic acid
TBAA)
•nonobromoacetic acid
MBAA)
dibromoacetic acid
DBAA)
dichloroacetic acid
DCAA)
•nonochloroacetic acid
MCAA)
richloraacetic acid
TCAA)
Not
available
Not
available
Not
available

Not
available
Not
available
Not
available

Oug/L

70 ug/L

20 ug/L
Clear evidence of carcinogenicity
(NTP 2009); Reproductive effects
Clear evidence of carcinogenicity
(NTP 2014)







Clear evidence of carcinogenicity in
mice (NTP 2007)

Cancer
Decreased body, liver, kidney and
spleen weights

Liver changes
33 ug/L;
263 of 291 systems
3.2 ug/L;
90 of 102 systems
3.2 ug/L;
66 of 101 systems

5 ng/L;
15 of 98 systems
1.5 ug/L;
124 of 291 systems
2.3 ug/L;
202 of 291 systems
11 ug/L;
272 of 291 systems
3 ug/L;
215 of 290 systems
9.7 ug/L;
259 of 291 systems






HAA6Br
























HAAS
Group
MCL5 =
60ug/L




    1Gas Chromatography with Electron Capture Detection
    2lon Chromatography Electrospray lonization Tandem Mass Spectrometry
    3MCLGs established under the Stage 1 and Stage 2 DBPRs
    Disinfection By-product Information Collection Rule (DBP ICR) (1997-1998)
    5The HAAS group is currently regulated in drinking water at a MCL of 60 ug/L per Stage 1 and Stage 2 DBPRs
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                                          Alcohols
EPA Method 541 (GC/MS1)
Analyte
l-butanol
2-propen-l-ol
2-methoxyethanol
Health Reference
Level (HRL)
700 ug/L
35 Ug/L
21 ug/L
Critical Health
Effect
Abnormally diminished
activity in the
body/organs; inability to
control muscles
Impaired kidney
function and increased
relative liver, spleen and
kidney weights
Reproductive effects
Usage
TRI2= 11,093,815 pounds
released in 47 states in
2010
TRI =445,833 pounds
released in 13 states in
2010
TRI = 23,240 pounds
released in 16 states in
2010
          1Gas Chromatography-Mass Spectrometry
          2Toxic Release Inventory (TRI)
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U.S. Environmental Protection Agency
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Proposal: Revisions to the Unregulated Contaminant Monitoring Rule (UCMR 4) Webinar Presentations
              Semivolatile Organic Chemicals
           Analyte
       butylated
       hydroxyanisole
       o-toluidine
       quinoline
Health Reference
  Level (HRL)
   0.581 u.g/L
                           0.194u.g/L
    0.01 u.g/L
 Critical Health
     Effect
Changes in liver weight
    Usage
 NREC2 Median =0.1
|ig/L; detected at 2 out
    of 85 sites
                                TRI3= 6,623 pounds
                                released in 1 state in
                                    2010
                TRI = 15,789 pounds
                released in 9 states in
                     2010
       1Gas Chromatography-Mass Spectrometry
       2USGS, National Reconnaissance of Emerging Contaminants (NREC) Surface Water Data, 1999-2004
       3Toxic Release Inventory (TRI)
 January 2016
  U.S. Environmental Protection Agency
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           Additional Contaminants and Indicators
                      Considered for UCMR 4
         Legionella pneumophila (on CCL 4)
           • Method was not ready at the time of proposal
           • Thought to be largely a premise plumbing issue
           • Health effects:
               •  Legionnaire's Disease and Pontiac Fever
           • 52 reported waterborne disease outbreaks affecting
             225 people between 1990 and 2010 (CDC MMWR)
           • OW Draft (October 2015) - Technologies for Legionella
             Control: Scientific Literature Review:
               •  http://www.epa.gov/sites/production/files/2015-
                 10/documents/drafttechlegionellaoct2015.pdf
 January 2016
  U.S. Environmental Protection Agency
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          Additional  Contaminants and Indicators

                     Considered for UCMR 4

         Mycobacterium avium (on CCL 4)

          • Method was  not ready at the time of proposal

          • Health effects:

              •  Pulmonary disease, lymphadenitis, post-traumatic wound
                infection

          • No  reported outbreaks between 1990 and 2008 (CDC
            MMWR)
 January 2016
U.S. Environmental Protection Agency
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          Additional  Contaminants and Indicators

                     Considered for UCMR 4

         Ammonia

          • May be oxidized to nitrite and nitrate (contaminants of
            greater toxicological concern) via nitrification
              •  Nitrite/Nitrate are regulated in drinking water: MCLG/MCL 1,000
                and 10,000 u.g/L respectively based on methemoglobinemia
          • The NPDWRfor nitrite and nitrate requires compliance
            monitoring at each entry point to the distribution system
            (EPTDS)              '
              •  Limited research indicates that nitrification downstream of EPTDS
                (i.e., in distribution system) may lead to higher nitrite and/or
                nitrate exposure (especially for PWSs using chloramine
                disinfection)
              •  Measuring ammonia at entry point could serve as a surrogate for
                nitrification potential
 January 2016
U.S. Environmental Protection Agency
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          Additional Contaminants and Indicators
                    Considered for UCMR 4

        Three pesticides in method 525.3 were identified as
        lower priority  based on data evaluation:
          •  Disulfoton: Production cancelled 2009; non-cancer
            endpoint; not detected in 2,300 samples from 295 systems
            (UCMR 1 SS 2001-2003); not persistent to moderately
            persistent in  the environment; very regionalized usage
          •  Hexazinone: Not on CCL 4; non-cancer endpoint; not
            detected in 221 samples (PMP, 1999); moderately persistent
            to persistent in the environment
          •  Vinclozolin: No current usage; non-cancer endpoint; was
            being phased out in 2004; persistent in the environment
 January 2016
U.S. Environmental Protection Agency
                                                                 41
                 Proposed Contaminants
        EPA invites comments on:
          • The proposed contaminants and their
           associated methods
          • The six additional contaminants
           considered for UCMR 4, but not
           included on the proposed list
          • Additional contaminants that may not
           have been considered for UCMR 4
          • Suggestions for which
           contaminants) to remove if others
           are added
          • Additional consensus analytical
           methods for the proposed
           contaminants
 January 2016
U.S. Environmental Protection Agency
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Proposal: Revisions to the Unregulated Contaminant Monitoring Rule (UCMR 4) Webinar Presentations
                  UCMR 4 Cost Estimates
Average Annual Cost per Respondent (2017-2021)

Small systems
Large systems
Very large systems
States
EPA
Labor
$100
$410
$750
$8,990
$815,240
Non-labor
(methods & shipping)
$0
$3,630
$9,780
$0
$3,864,860
Labor plus
Non-labor
$100
$4,040
$10,530
$8,990
$4,680,100
 January 2016
U.S. Environmental Protection Agency
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                  UCMR 4 Cost Estimates
Ave. Annual Cost All Respondents
ReSP°ndent (2017-2021)
Small systems (25-10,000), including labor only (non-labor
costs paid for by EPA)
Large systems (10,001-100,000), including labor and non-labor
costs
Very large systems (100,001 and greater), including labor and
non-labor costs
States, including labor costs related to implementation
coordination
EPA, including labor for implementation, non-labor for small
system testing
AVERAGE ANNUAL NATIONAL TOTAL
$0.16 m
$15.7 m
$4.3 m
$0.50 m
$4.7 m
$25.3 m
*Note that totals may not equal the sum of components due to rounding.
*EPA assumes that one-third of the systems would monitor during each of the three monitoring years.
 January 2016
U.S. Environmental Protection Agency
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Proposal: Revisions to the Unregulated Contaminant Monitoring Rule (UCMR 4) Webinar Presentations
             UCMR 4 Sampling Design
                     Brenda Parris, USEPA
         UCMR 4 Sampling Design Overview

       System applicability
       Sampling frequency and timing
       Revised sampling locations
         • Phased sample-analysis for microcystins
         • Haloacetic acid (HAA) groups
         • Source water sampling
       Representative sampling
       Schedules
 January 2016
U.S. Environmental Protection Agency
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Proposal: Revisions to the Unregulated Contaminant Monitoring Rule (UCMR 4) Webinar Presentations
                          System Applicability:
        National Sample Assessment Monitoring Design (List 1)
System Size
(# of people
served)
Small systems1
(25 - 10,000)
Large systems2
(10,001 and over)
TOTAL

10 Cyanotoxins 20 Additional Chemicals
Total # of
Systems per
Size Category
800 randomly selected SW or
GWUDI systems
All SW or GWUDI systems
(1,987)
2,787
800 randomly selected SW,
GWUDI and GW systems
All SW, GWUDI and GW
systems (4,292)
5,092
1,600
4,292
5,892
   1Total for small systems is additive because these systems would only be selected for one component of UCMR 4
   sampling (10 cyanotoxins or 20 additional chemicals). EPA would pay for all analytical costs associated with
   monitoring at small systems.
   2 Large system counts are approximate. The number of large systems is not additive. All SW and GWUDI systems
   would monitor for cyanotoxins; those same systems would also monitor for the 20 additional List 1 chemicals, as
   would the large GW systems.
 January 2016
U.S. Environmental Protection Agency
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             Sampling Frequency and Timing

         Sample collection time frame
           •  March through November
           •  Exclude December, January and February
              • Except for re-sampling events, as needed
         Better reflect the times of year when
         contaminants are more likely to occur in drinking
         water (e.g., cyanotoxins and  pesticides)
         Monitoring will take place over a three-year period
         (2018-2020)
 January 2016
U.S. Environmental Protection Agency
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Proposal: Revisions to the Unregulated Contaminant Monitoring Rule (UCMR 4) Webinar Presentations
             Sampling Frequency and Timing
     Contaminant   Water Source
                  SWorGWUDI
     Contaminants -
      Cyanotoxins
                  SWorGWUDI
     Contaminants -
       Additional
       Chemicals
GW
                                Time Frame              Frequency
             March - November  You must monitor twice a month for four
                          consecutive months (total of eight sampling
                          events). Sample events must occur two weeks
                          apart.
                               March - November
                                             You must monitor four times during your 12-
                                             month monitoring period. Sample events must
                                             occur two months apart. (Example: If your first
                                             sampling event is in March, the second
                                             monitoring must occur during May the third
                                             during July and the fourth during September).
             March - November  You must monitor two times during your 12-
                          month monitoring period. Sample events must
                          occur six months apart. (Example: If your first
                          monitoring is in March, the second monitoring
                          must occur during September. If your first
                          monitoring is in November, the second
                          monitoring must occur in May).
 January 2016
         U.S. Environmental Protection Agency
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               Sampling Locations - Overview
      Microcystins
        •  Phased sample analysis
            •  PWSs will collect all required samples but not all samples may need to be
              analyzed
        •  "Total microcystins" (ADDA ELISA) at source water intake and EPTDS
        •  Method 544 (specific microcystin congeners)  at the EPTDS
        •  Temperature and pH at source water intake (concurrently)
      Haloacetic Acid Groups
        •  Stage 2 Disinfection Byproduct Rule (DBPR) locations and/or
          distribution system maximum residence time (DSMRT)
        •  Source water intake [bromide and total organic carbon (TOC)]
          concurrently
      Remaining UCMR 4 contaminants
        •  EPTDS sampling
 January 2016
         U.S. Environmental Protection Agency
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Proposal: Revisions to the Unregulated Contaminant Monitoring Rule (UCMR 4) Webinar Presentations
              Phased Sample-Analysis for Microcystins
     PWSs(SW and GWUDI) must
    collect all required samples for
     each sampling event (source
       water intake and EPTDS
     samples) but all samples may
       not need to be analyzed.
     0.3 |ig/L (the reporting limit
       for total microcystins)
     ELISA analysis of the EPTDS
     sample would be the first
       step for consecutive
     systems (purchase 100% of
          their water)
analyzed for tha
                       Source water result would be
                        reported to EPA. The EPTDS
                          sample would then be
                           analyzed by ELISA
Sampling Location
Source water intake
Entry pointtothe
distribution system
(EPTDS)
Samples Collected
ADDA ELISA, pH and
temperature
ADDA ELISA, EPA
Method 544 and 545
                                                           EPTDS result would be reported
                                                          to EPA and the other microcystin
                                                           sample collected at the EPTDS
                                                          •vould be analyzed  using Method
                                                             544 to identify  particular
  * Method 544 (identifies six specific congeners) is not a confirmation check of the ADDA ELISA result (provides a 'total' of 80-100 congeners)
             Sampling  Locations -  HAA Groups

          If subject to Stage 2 DBPR:
            •  Collect distribution system samples at the locations
              identified under that rule
          If not subject to Stage  2 DBPR:
            •  Collect samples at a  location that represents the
              DSMRT
                • DSMRT is an active point (i.e., location that currently provides
                  water to customers) in the distribution system where water
                  has been in the system longest relative to the EPTDS
 January 2016
   U.S. Environmental Protection Agency
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Proposal: Revisions to the Unregulated Contaminant Monitoring Rule (UCMR 4) Webinar Presentations
            Sampling Locations - HAA Groups
       UCMR 4 HAA samples and HAAS
       Stage 2 DBPR compliance samples
       can be collected at the same time
         •  Must use a UCMR 4 approved
           laboratory and EPA Method 552.3
           or 557
       PWSs report HAA results to EPA for
       three groups (HAAS, HAA6Br and
       HAA9)
         •  Labs also report individual HAA
           analyte data for QC purposes
       Better understand co-occurrence
       between regulated and unregulated
       disinfection byproducts
              dichloroacetic acid (DCAA)
              trichloroacetic acid (TCAA)
              nonochloroacetic acid (MCAA)
              monobromoacetic acid (MBAA)

              dibromoacetic acid (DBAA)
              Dromochloroacetic acid (BCAA)
              jromodichloroacetic acid (BDCAA)
              chlorodibromoacetic acid (CDBAA)

              iribromoacetic acid (TBAA)
 January 2016
U.S. Environmental Protection Agency
                                       HAA6Br
                                                                           53
                     Source Water Sampling


         Applies to microcystin (i.e., ADDA ELISA, pH and temperature)
         and HAA (i.e., bromide and TOC) monitoring
         Untreated water entering the water treatment plant
           • A location prior to any treatment
         Systems subject to:
           • The Long Term 2 Enhanced Surface Water Treatment Rule (LT2ESWTR)
               •  Use the source water sampling site(s) under that rule
           • Stage 1 DBPR (remain unchanged under Stage 2 DBPR)
               •  Use TOC source water sampling site(s)
         Systems with two different source water sampling locations for
         LT2/Stage 1 DBPR
           • Use sample point that best represents the definition of source water
             sample location(s) for UCMR
 January 2016
U.S. Environmental Protection Agency
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Proposal: Revisions to the Unregulated Contaminant Monitoring Rule (UCMR 4) Webinar Presentations
               Representative Sampling

       Large GW systems with multiple EPTDSs can
       sample at representative sampling locations rather
       than at each EPTDS if prior approval is received
         • Representative sampling plans approved under prior
          UCMRs will be recognized for UCMR 4
         • These systems must submit a copy of the
          documentation from their state or EPA that approved
          their representative sampling locations
 January 2016
U.S. Environmental Protection Agency
                                                          55
               Representative Sampling

       New GW representative monitoring plans must be
       submitted for review by the state or EPA within
       120 days from publication of the final rule
       Approved representative locations must be loaded
       into the SDWARS by December 31, 2017
 January 2016
U.S. Environmental Protection Agency
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Proposal: Revisions to the Unregulated Contaminant Monitoring Rule (UCMR 4) Webinar Presentations
                           Schedules


        Large system schedules

          •  EPA initially drafts schedule
          •  Partnered state has opportunity to review and modify
          •  PWS has opportunity to review and modify
             • Systems must NOT modify their schedules to avoid a
               suspected vulnerable period

        Small system schedules
          •  EPA initially drafts schedule
          •  Partnered state has opportunity to review and modify
 January 2016
U.S. Environmental Protection Agency
                                                                 57
                      Sampling Design
        EPA invites comment on:
          • Monitoring time frame (March-
           November)
          • Cyanotoxin monitoring
           approach
             • Including "indicator" monitoring
          • Phased sample-analysis for
           microcystins
          • Balance between burden
           (e.g., number of PWSs,
           monitoring frequency) and
           data representativeness
 January 2016
U.S. Environmental Protection Agency
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Proposal: Revisions to the Unregulated Contaminant Monitoring Rule (UCMR 4) Webinar Presentations
                  UCMR 4 Reporting
                      Jennifer Tully, ORISE
             UCMR 4 Reporting Overview

        Initial and on-going reporting requirements
        New/revised data elements
        Timing of reporting
 January 2016
U.S. Environmental Protection Agency
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Proposal: Revisions to the Unregulated Contaminant Monitoring Rule (UCMR 4) Webinar Presentations
         Reporting by All Systems §141.35(b)

        EPA's electronic data reporting system (SDWARS)
        can be accessed:
          • http://www.epa.gov/dwucmr

        Hard copy documentation mailed:
          • UCMR Sampling Coordinator, USEPA, Technical Support
           Center, 26 West Martin Luther King Drive (MS 140),
           Cincinnati, OH 45268

        Electronic files emailed:
          •  UCMR_Sampling_Coord inator@epa.gov
 January 2016
U.S. Environmental Protection Agency
                                                               61
          Large System Reporting §141.35(c)

        Contact and zip code information
          • SDWARS by December 31, 2017
        Sampling location information
          • SDWARS by December 31, 2017
          • Changes after applicability date must be submitted to (with
           reason) and approved by EPA's UCMR Sampling Coordinator
        Samples
          • PWSs must report all data elements specified in §141.35(e) Table 1
           (e.g., disinfectant type, treatment information and disinfectant
           residual)
        Monitoring results
          • Entered by UCMR approved laboratory to SDWARS
          • Reviewed and submitted by PWS
 January 2016
U.S. Environmental Protection Agency
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Proposal: Revisions to the Unregulated Contaminant Monitoring Rule (UCMR 4) Webinar Presentations
            Small System  Reporting §141.35(d)


          If notified that system will be subject to UCMR 4:
            •  Contact and zip code information
                • To SDWARS within 90 days of notification (new)
            •  Sampling location information
                • To SDWARS by December 31, 2017 (new)
            •  Samples
                • PWSs must report all data elements specified in §141.35(e) Table
                  1 on each sample form as appropriate (e.g., disinfectant type,
                  treatment information and disinfectant residual)
            •  Monitoring results
                • Entered by contracted laboratory to SDWARS
                • Reviewed by EPA
                • Viewed by PWS
 January 2016
U.S. Environmental Protection Agency
                                                                               63
           Reporting Data Elements §141.35(e)
     1. Public Water System Identification (PWSID)
     Code
               14. Sample Identification Code
     2. Public Water System Name*
                                            15. Contaminant
     3. Public Water System Facility Identification
     Code
               16. Analytical Method Code
     4. Public Water System Facility Name*
     5. Public Water System Facility Type*
                                            17. Extraction Batch Identification Cod
                                            18. Extraction D-
     6. Water Source Type
     7. Sampling Point Identification Code
               19. Analysis Batch Id

               20. Analysis Date
     8. Sampling Point Name*
               21. Sample Analysis Type (more details)
     9. Sampling Point Type Code
               22. Analytical Results—Sign
     10. Disinfectant Type (more details)
     11. Treatment Information (more detai

     "" Disinfectant Residual Type
               23. Analytical Result—Measured Value
                                               Additional Value
               25. Laboratory Identification Code
     13. Sample Collection Date
               26. Sample Event Code
          Blue indicates new data element
                                              Green indicates updated data element
       *New data elements that were used in previous UCMRs but not required per rule language


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Proposal: Revisions to the Unregulated Contaminant Monitoring Rule (UCMR 4) Webinar Presentations
             Disinfectant Type  -  Data  Element 10
           PEMB = permanganate (applied before
           SR sample location)
           PEMA = permanganate (applied after SR
           sample location)
           HPXB = hydrogen peroxide (applied
           before SR sample location)
           HPXA = hydrogen peroxide (applied after
           SR sample location)
           CLGA = gaseous chlorine
           CLOF = offsite generated hypochlorite
           (stored as a liquid form)
           CLON = onsite generated hypochlorite
           CAGC = chloramine (formed from
           gaseous chlorine)
                   CAOF = chloramine (formed from offsite
                   hypochlorite)

                   CAON = chloramine (formed from onsite
                   hypochlorite)

                   CLDB = chlorine dioxide (applied before
                   SR sample location)

                   CLDA = chlorine dioxide (applied after SR
                   sample location)

                   OZON = ozone

                   ULVL = ultraviolet light
                   OTHD = all other types of
                   disinfectant/oxidant

                   NODU = no disinfectant/oxidant used
  January 2016
U.S. Environmental Protection Agency
                                                                                            65
            Treatment Information  - Data Element 11
       CON = conventional (non-softening)
       SCO = softening conventional
       RBF = river bank filtration
       PSD = pre-sedimentation
       INF = in-line filtration
       DFL= direct filtration
       PCF = precoat filtration
       SSF = slow sand filtration
       BIO = biological filtration
       REC = reactor clarification (e.g., solids contact
       clarification, slurry recirculation clarification, Aciflo")
       SBC = sludge blanket clarification (e.g., Pulsator",
       Super Pulsator", contact adsorption clarifiers,
       floe-blanket clarifiers)
       ADC = adsorption clarification (contact adsorption
       clarification)
       UTR = unfiltered treatment
       PAC = application of powder activated carbon
       GAC = granular activated carbon (not part of
       filters in CON, SCO, INF,  DFLorSSF)
                 • AIR = air stripping (packed towers, diffused
                   gas contactors)
                 • POB= pre-oxidation/disinfection with
                   chlorine (applied before SR sample
                   location)
                 • PDA = pre-oxidation/disinfection with
                   chlorine (applied after SR sample location)
                 • MFL = membrane filtration
                 • IEX = ionic exchange
                 • UVT= ultraviolet light
                 • AOX = advanced oxidation (ultraviolet light
                   with hydrogen peroxide and/or ozone)
                 • DAF = dissolved air floatation
                 • CWL = clear well/finished water storage
                   without aeration
                 • CWA = clear well/finished water storage
                   with aeration
                 • ADS = aeration in distribution system
                   (localized treatment)
                 • OTH = all other types of treatment
                 • NTU = no treatment used
  January 2016
U.S. Environmental Protection Agency
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Proposal: Revisions to the Unregulated Contaminant Monitoring Rule (UCMR 4) Webinar Presentations
                Sample Analysis Type - Data Element 21
       CF = concentration fortified; the concentration of
       a known contaminant added to a field sample
       reported with sample analysis types LFSM,
       LFSMD, LFB, CCCandQCS.
       CCC = continuing calibration check; a calibration
       standard containing the contaminant, the
       internal standard, and surrogate analyzed to
       verify the existing calibration for those
       contaminants.
       FS = field sample; sample collected and
       submitted for analysis under this rule.
       IS = internal standard; a standard that measures
       the relative response of contaminants.
       LFB = laboratory fortified blank; an aliquot of
       reagent water fortified with known quantities of
       the contaminants and all preservation
       compounds.
              • LRB = laboratory reagent blank; an aliquot of reagent
               water treated exactly as a field sample, including the
               addition of preservatives, internal standards, and
               surrogates to determine if interferences are present in
               the laboratory, reagents, or other equipment.
              • LFSM = laboratory fortified sample matrix; a UCMR
               field sample with a known amount of the contaminant
               of interest and all preservation compounds added.
              • LFSMD = laboratory fortified sample matrix duplicate;
               duplicate of the laboratory fortified sample matrix.
              • QCS = quality control sample; a sample prepared with
               a source external to the one used for initial calibration
               and CCC. The QCS is used to check calibration standard
               integrity.
              • QH = quality HAA; HAA sample collected and
               submitted for quality control purposes.
              • SUR = surrogate standard; a standard that assesses
               method performance for each extraction.
 January 2016
U.S. Environmental Protection Agency
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                    Timing  of Reporting Results
           Large systems
             •  Laboratory posts results to SDWARS within 120 days of
               sample collection
             •  Systems review, approve and submit to state and EPA
               within 60 days of laboratory's post
           Small systems
             •  EPA will still manage laboratory contracts for small
               water systems
             •  Laboratory posts results to SDWARS within 120 days of
               sample collection
             •  Systems have the option to view data in SDWARS
             •  EPA will not mail hard copy reports to systems or states
 January 2016
 U.S. Environmental Protection Agency
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Proposal: Revisions to the Unregulated Contaminant Monitoring Rule (UCMR 4) Webinar Presentations
                10-Minute Break
         UCMR 4 Laboratory Approval
               Process and MRLs
                   Melissa Simic, USEPA
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Proposal: Revisions to the Unregulated Contaminant Monitoring Rule (UCMR 4) Webinar Presentations
        UCMR 4 Laboratory Approval Program

        Similar to the process used in UCMR 3
        Only UCMR 4 approved laboratories can analyze UCMR
        4 samples collected at PWSs
           • Approval is by method and by individual location
           • A laboratory may apply for any number of UCMR 4 methods
        Laboratories need to meet:
           • UCMR 4 approval program criteria
           • Required equipment criteria
           • Laboratory performance criteria
           • Data reporting criteria
 January 2016
U.S. Environmental Protection Agency
                                                                     71
         UCMR 4  Laboratory Approval Manual
       Procedures for obtaining UCMR 4 approval and procedures for revocation
       of approval
       Quality assurance (QA) and quality management requirements
       Initial Demonstration of Capability (IDC)
       Minimum reporting level (MRL) verification
       Quality control (QC) requirements:
        •  Extraction/Analysis Batch
        •  Initial calibration of analytical instruments
        •  Continuing calibration checks (CCC)
        •  Surrogate and internal standard
        •  Laboratory reagent blanks (LRB) and laboratory fortified blanks (LFB)
        •  Quality control samples (QCS)
        •  Laboratory fortified sample matrix (LFSM)
       Sample handling requirements
       Uploading data to SDWARS
 January 2016
U.S. Environmental Protection Agency
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Proposal: Revisions to the Unregulated Contaminant Monitoring Rule (UCMR 4) Webinar Presentations
                    General Procedure

        Step 1: Request to Participate
        Step 2: Registration
        Step 3: Application Package
        Step 4: EPA Review of Application Package
        Step 5: Proficiency Testing (PT)
        Step 6: Written EPA approval
 January 2016
U.S. Environmental Protection Agency
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            Step 1 - Request to Participate

        Submit a written request to EPA Laboratory
        Approval Coordinator
         • UCMR_Sampling_Coord inator@epa.gov
        EPA provides:
         • Registration material
         • Customized application package
 January 2016
U.S. Environmental Protection Agency
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Proposal: Revisions to the Unregulated Contaminant Monitoring Rule (UCMR 4) Webinar Presentations
                      Step 2 - Registration

         Complete registration sheet:
           •  List of the UCMR 4 methods that the laboratory is seeking
             approval
           •  Laboratory information
           •  Mailing and shipping address
           •  Contact information
         EPA will provide a UCMR-specific laboratory ID to each
         participant
         Must complete and submit the necessary registration
         forms within 60 days of publication of the final rule
 January 2016
U.S. Environmental Protection Agency
                                                                      75
                Step 3 - Application Package


         Separate application for each method
         Application must include:
           • Proof of current drinking water laboratory certification (for select
            compliance monitoring methods)
           • Personnel information
           • QA information
           • Information regarding analytical equipment and sample handling
            procedures
           • Data submission for each method (e.g., IDC study, QC sample results,
            quantification reports)
           • Confirmation on reporting to SDWARS
         Must complete and submit the necessary application materials
         (method specific) within 120 days from publication of final rule
 January 2016
U.S. Environmental Protection Agency
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Proposal: Revisions to the Unregulated Contaminant Monitoring Rule (UCMR 4) Webinar Presentations
       Step 4 - Review of Application Package

       • EPA reviews application package
         • If deficiencies are identified the lab will have an
           opportunity to make corrective actions and submit new
           application information
         • If all requested information is present and acceptable,
           EPA will notify the laboratory that they are eligible to
           participate in corresponding PT studies
 January 2016
U.S. Environmental Protection Agency
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               Step 5 - Proficiency Testing

        EPA provides method-specific PT samples
        Laboratories:
         • Analyze PT sample(s) for each analyte and method
         • If do not pass PT, may have another opportunity
        One successful PT per method
        No PT studies after monitoring begins
 January 2016
U.S. Environmental Protection Agency
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Proposal: Revisions to the Unregulated Contaminant Monitoring Rule (UCMR 4) Webinar Presentations
            Step 6 - Written EPA Approval

      • After successful participation in a PT study for a
       specific method, EPA will notify the laboratory in
       writing
      • Before final rule is published, the laboratory will be
       granted a "pending approval" contingent upon:
         • Changes applied to the final rule
         • Resolution of any findings from a laboratory audit
      • Granted "final approval" after promulgation of the
       final rule
 January 2016
U.S. Environmental Protection Agency
                                                          79
                 Maintaining Approval

       Adhere to QA/QC measures in the methods, rule
       language and the UCMR 4 Laboratory Approval
       Manual
       Post occurrence data and required QC data via
       SDWARS within prescribed time frame
       Successfully complete audits and meet all the
       other stated  conditions
 January 2016
U.S. Environmental Protection Agency
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Proposal: Revisions to the Unregulated Contaminant Monitoring Rule (UCMR 4) Webinar Presentations
                              MRLs

        MRL is an estimate of the quantitation level,
        achievable with a 95% confidence, by at least 75% of
        laboratories nationwide
        Established with data from several laboratories
        performing LCMRL studies
        LCMRL - The lowest true concentration for which the
        future recovery is predicted to fall between 50% to
        150% with 99% confidence
          • Estimate of lowest concentration at which measurements of
           specified quality can be repeatedly made
          • Simultaneous application of precision and accuracy
 January 2016
U.S. Environmental Protection Agency
                                                               81
                              MRLs

        To achieve quality across laboratories, while
        allowing for reasonable national laboratory
        capacity
        MRLs are generally established as low as is
        reasonable; typically lower than current HRLs and
        health advisories
        EPA will consider raising MRLs if there is evidence
        that a proposed MRL is unattainable or impractical
 January 2016
U.S. Environmental Protection Agency
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Proposal: Revisions to the Unregulated Contaminant Monitoring Rule (UCMR 4) Webinar Presentations
                        MRLs - Cyanotoxins
2-CAS Registry 4-Minimum Reporting
1-Contaminant 3-Analytical Methods
Number Level
microcystin-LA
microcystin-LF
microcystin-LR
microcystin-LY
microcystin-RR
microcystin-YR
nodularin
total microcystin
anatoxin-a
cylindrospermopsin
96180-79-9
154037-70-4
101043-37-2
123304-10-9
111755-37-4
101064-48-6
118399-22-7
N/A
64285-06-9
143545-90-8
EPA 544
EPA 544
EPA 544
EPA 544
EPA 544
EPA 544
EPA 544
ADDA ELI SA
EPA 545
EPA 545
0.008 ng/L
0.006 ng/L
0.02 ng/L
0.009 ng/L
0.006 ng/L
0.02 ng/L
0.005 ng/L
0.3 ng/L
0.03 ng/L
0.09 ng/L
 January 2016
U.S. Environmental Protection Agency
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                            MRLs-Metals
2-CAS Registry 4-Minimum Reporting
1-Contaminant 3-Analytical Methods
Number Level
germanium
manganese
7440-56-4
7439-96-5
EPA 200.8, ASTM D5673-
10, SM 3125
EPA 200.8, ASTM D5673-
10, SM 3125
0.3 ng/L
0.4 ng/L
 January 2016
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         MRLs - Pesticides and Pesticide Byproduct
2-CAS Registry 3-Analytical 4-Minimum
1-Contaminant
Number Methods Reporting Level
alpha-hexachlorocydohexane
chlorpyrifos
dimethipin
ethoprop
oxyfluorfen
profenofos
tebuconazole
total permethrin (cis- & trans-)
tribufos
319-84-6
2921-88-2
55290-64-7
13194-48-4
42874-03-3
41198-08-7
107534-96-3
52645-53-1
78-48-8
EPA 525.3
EPA 525.3
EPA 525.3
EPA 525.3
EPA 525.3
EPA 525.3
EPA 525.3
EPA 525.3
EPA 525.3
0.01 ng/L
0.03 ng/L
0.2 ng/L
0.03 ng/L
0.05 ng/L
0.3 ng/L
0.2 ng/L
0.04 ng/L
0.07 ng/L
 January 2016
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                   MRLs - Haloacetic Acids
2-CAS Registry 4-Minimum
1-Contaminant 3-Analytical Methods
Number Reporting Level
bromochloroacetic acid (BCAA)
bromodichloroacetic acid (BDCAA)
chlorodibromoacetic acid (CDBAA)
tribromoacetic acid (TBAA)
monobromoacetic acid (MBAA)
dibromoacetic acid (DBAA)
dichloroacetic acid (DCAA)
monochloroacetic acid (MCAA)
trichloroacetic acid (TCAA)
5589-96-8
71133-14-7
5278-95-5
75-96-7
79-08-3
631-64-1
79-43-6
79-11-8
76-03-9
EPA 552.3 or EPA 557
EPA 552.3 or EPA 557
EPA 552.3 or EPA 557
EPA 552.3 or EPA 557
EPA 552.3 or EPA 557
EPA 552.3 or EPA 557
EPA 552.3 or EPA 557
EPA 552.3 or EPA 557
EPA 552.3 or EPA 557
0.3 ng/L
0.5 ng/L
0.3 ng/L
2.0 ng/L
0.3 ng/L
0.3 ng/L
0.2 ng/L
2.0 ng/L
0.5 ng/L
     * Register forTOC and bromide
 January 2016
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                         MRLs-Alcohols
2-CAS Registry 4-Minimum Reporting
1-Contaminant 3-Analytical Methods
Number Level
l-butanol
2-methoxyethanol
2-propen-l-ol
71-36-3
109-86-4
107-18-6
EPA 541
EPA 541
EPA 541
2.0 ng/L
0.4 ng/L
0.5 ng/L
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               MRLs - Semivolatile Organics
2-CAS Registry 4-Minimum Reporting
1-Contaminant 3-Analytical Methods
Number Level
butylated
hydroxyanisole
o-toluidine
quinoline
25013-16-5
95-53-4
91-22-5
EPA 530
EPA 530
EPA 530
0.03 ng/L
0.007 ng/L
0.02 ng/L
 January 2016
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Proposal: Revisions to the Unregulated Contaminant Monitoring Rule (UCMR 4) Webinar Presentations
          Submitting Public Comments
                      Brenda Parris, USEPA
        Comment Process/Accessing Docket
       Go to http://www.regulations.gov
       Enter Docket ID EPA-HQ-OW-2015-0218
       Click Search button
 January 2016
                 regulaHons.gov
                 Make a difference Submit your comments and let your voice be heard
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Proposal: Revisions to the Unregulated Contaminant Monitoring Rule (UCMR 4) Webinar Presentations
        Comment Process/Accessing Docket
       The UCMR 4 docket
       should pop up on the
       next screen
       Click on the Comment
       Now button on right
       hand side of the screen
           ort By: Best Match
                        Comment Now!
                      Due Feb 09, 2016 11:59 PME'

                       to' Open Docket Folder
 January 2016
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        Comment Process/Accessing Docket
      Enter comment and all
      required information
      on next screen
      Upload a document by
      clicking on the Choose
      files button
      Click on the Continue
      button at the bottom
      of the page to preview
      your comment

 January 2016
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Proposal: Revisions to the Unregulated Contaminant Monitoring Rule (UCMR 4) Webinar Presentations
        Comment Process/Accessing Docket


       Once submitted, comments cannot be edited or
       removed
       Do not electronically submit any information you
       consider to be CBI
       Multimedia submissions (audio, video, etc.) must be
       accompanied by a written comment
         • Written comment is considered the official comment and
          should include discussion of all points you wish to make
       EPA public comment policy is at:
       http://www.epa.gov/dockets/commenting-epa-
       dockets
 January 2016
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            Statements from Webinar
                      Participants
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Proposal: Revisions to the Unregulated Contaminant Monitoring Rule (UCMR 4) Webinar Presentations
                     Lynn Thorp
                     Paul Monroy
                     Amanda Foss	
                     Andrew Eaton
                     Charmaigne Cortesio
                     Cynthia Andrews-Tate
                     Robert Holmes
                     Dave Dunaway
                     Judy Schmidt
                     Danielle Bonham
                     Steven Praiak
                     Melissa Simoncini
           Clean Water Action
           AWWA
           Babcock Laboratories, Inc.
           GreenWater Lab
           Eurofins Eaton Analytical
           Arizona Public Service
           Long Beach Water Department
           City of O'Fallon
           City of Grand Prairie
           Akron Water Supply
           ADEQ
           City of Arvada
           CityofVallejo
           City of Sterling
           MDWID
           City of Evanston
           City of Bend Utility Department
           Concord Public Works
           Auburn Water System
           BCWIDtfl
                           Closing Remarks
          Further information:
            •  Brenda D. Parris: parris.brenda@epa.gov
            •  Melissa Simic: simic.melissa@epa.gov
            •  Safe Drinking Water Hotline:
               http://www.epa.gov/your-drinking-water/safe-
               drinking-water-hotline
            •  Meeting materials were sent to all registered
              participants
            •  If you did not receive a copy, please email
              UCMRwebinar@cadmusgroup.com and we will send
              you a copy
 January 2016
U.S. Environmental Protection Agency
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  January 2016
                         Additional  Information
             U.S. Environmental Protection Agency
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        ADDA

        DSMRT

        ELISA

        EPTDS

        GW

        GWRMP

        GWUDI

        HAAS


        HAA6Br
                                     Acronyms
                                 Abbreviations and Acronyms
  January 2016
(25, 3S, 85, 95, 4E, 6E)-3-amino-9-methoxy-2,6,8-trimethyl-10-phenyl-4, 6-decadienoic acid

Distribution System Maximum Residence Time

Enzyme-linked Immunosorbent Assay

Entry Point to the Distribution System

Ground Water

Ground Water Representative Monitoring Plan

Ground Water Under the Direct Influence of Surface Water

Dibromoacetic Acid, Dichloroacetic Acid, Monobromoacetic Acid, Monochloroacetic Acid,
Trichloroacetic Acid
Bromochloroacetic Acid, Bromodichloroacetic Acid, Dibromoacetic Acid,
Dibromochloroacetic Acid, Monobromoacetic Acid, Tribromoacetic Acid
Health Reference Level
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         IDC




         LCMRL




         MRL




         PA




         PT




         SDWARS




         SDWIS/Fed




         SMP




         SW




         TOC
                                      Acronyms
                                 Abbreviations and Acronyms
  January 2016
Initial Demonstration of Capability




Lowest Concentration Minimum Reporting Level




Minimum Reporting Level




Partnership Agreement




Proficiency Testing




Safe Drinking Water Accession and Review System




Federal Safe Drinking Water Information System




State Monitoring Plan




Surface Water




Total Organic Carbon










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