Public Meeting and Webinar:The Fourth Unregulated ContaminantMonitoring Rule (UCMR 4) Meeting Presentations


United States
Environmental Protection
^'^1 M % Agency
Public Meeting and Webinar:
The Fourth Unregulated Contaminant
Monitoring Rule (UCMR 4)
Meeting Presentations
Held April 12, 2017
USEPA, Office of Ground Water and Drinking Water
Office of Water (MLK 140)
EPA 815-A-17-001
April 2017

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The Fourth Unregulated Contaminant Monitoring Rule (UCMR 4) Implementation Webinar Presentation
The Fourth Unregulated
Contaminant Monitoring Rule
(UCMR 4)
Office
10:00 a.m. ET
USEPA
of Ground Water and Drinking
Water
Public Meeting and Webinar
April 12, 2017
Welcome
Gregory Carroll, USEPA

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The Fourth Unregulated Contaminant Monitoring Rule (UCMR 4) Implementation Webinar Presentation
General Meeting Information
•	Purpose
•	Describe the requirements of EPA's UCMR 4 and
provide a forum for public questions and discussion
•	Schedule
•	Break for lunch at noon ET
•	Resume at 1:30 p.m. ET
•	10 minute break at approximately 2:30 p.m. ET
•	Public questions arid discussion at the end of the
meeting
April 2017
U.S. Environmental Protection Agency
Participating by Webinar
Listen-only mode
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Submit questions as soon as
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•	Questions will be answered at
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The Fourth Unregulated Contaminant Monitoring Rule (UCMR 4) Implementation Webinar Presentation

Agenda
10:00-10:10
Welcome, Introduction, Agenda
(10 minutes)
10:10-10:30
Overview of the UCMR Program
(20 minutes)
10:30-10:50
Overview of UCMR 4
(20 minutes)
10:50-11:40
UCMR 4 Sample Collection & Frequency
(50 minutes)
11:40-12:00
UCMR 4 Laboratory Approval Process and MRLs
(20 minutes)

Q&A and Discussion - if presentations end early
(until lunch)
12:00-1:30
Lunch Break
(90 minutes)
1:30-2:30
SDWARS and Reporting Requirements
(60 minutes)
2:30-2:40
Risk Communication
(10 minutes)
2:40-2:50
Closing Remarks
(5 minutes)
2:50-3:00
Break
(10 minutes)
3:00-4:00
Q&A and Discussion
(60 minutes)
April 2017
U.S. Environmental Protection Agency
Overview of the UCMR
Gregory Carroll, USEPA
Program

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The Fourth Unregulated Contaminant Monitoring Rule (UCMR 4) Implementation Webinar Presentation
Overview
•	Regulatory background for UCMR
•	SDWA authority
•	Relationships to:
•	Contaminant Candidate List (CCL)
•	Regulatory Determination
•	Six-Year Review
•	UCMR
•	Objectives
•	Approach
•	implementation
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SDWA
•	Passed in 1974, SDWA authorized EPA to set enforceable
health standards for contaminants in drinking water
•	National Primary Drinking Water Regulations (NPDWRs)
•	1986 SDWA amendments were the basis for the original
UCMR
•	State drinking water programs managed the original UCM program
•	PWSs serving > 500 people were required to monitor
•	1996 SDWA amendments changed the process of
developing and reviewing NPDWRs
•	CCL
•	UCMR
•	Regulatory Determination
•	Six-Year Review
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The Fourth Unregulated Contaminant Monitoring Rule (UCMR 4) Implementation Webinar Presentation
General Flow of SDWA Regulatory Processes
Public Review and Comment
Regulatory
Determination
Preliminary
Regulatory
Determinations
H
Final Regulatory
Determinations
Proposed Rule
(NPDWR)
Review
UCMR Monitoring
Results
UCMR
No further action if
decision is to not regulate
May develop health advisory
Final Rule
(NPDWR)
Six-Year Review of
Existing NPDWRs
Increased specificity and confidence in the type of supporting data used (e.g., health, occurrence, treatment) is needed at each stage.
April 2017
U.S. Environmental Protection Agency
CCL
• List of priority unregulated contaminants
•	Published every five years
•	Known or anticipated to occur in public water systems
(PWSs)
•	May require regulation under SDWA
The Final CCL 4 was published November 17, 2016 and
included 97 chemicals or chemical groups and 12 microbes
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The Fourth Unregulated Contaminant Monitoring Rule (UCMR 4) Implementation Webinar Presentation
General Flow of SDWA Regulatory Processes
CCL
+4-
Regulatory
Determination
Preliminary
Regulatory
Determinations

UCMR Monitoring
Results
UCMR ,
Final Regulatory
Determinations
No further action if
decision is to not regulate
May develop health advisory
Rule
I
Public Review and Comment
Proposed Rule
(NPDWR)
Final Rule
(NPDWR)
Review
Six-Year Review of
Existing NPDWRs
Increased specificity and confidence in the type of supporting data used (e.g., hedth, occurrence, treatment) is needed at each stage.
April 2017
U.S. Environmental Protection Agency
UCMR
SDWA section 1445(a)(2), established
requirements for the UCMR Program:
•	Issue hst 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 Contaminant
Occurrence Database for Drinking Water (NCOD)
•	EPA funds shipping/analytical costs for small PWSs
EPA manages program in partnership with states
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The Fourth Unregulated Contaminant Monitoring Rule (UCMR 4) Implementation Webinar Presentation
UCMR History
•	UCMR 1 (2001-2005, 26 contaminants)
•	UCMR 2 (2007-2011, 25 contaminants)
•	UCMR 3 (2012-2016, 30 contaminants)
•	UCMR 4 (2017-2021, 30 contaminants)
•	Published in the FR on December 20, 2016
•	PWSs monitor 2018-2020
Each new UCMR cycle is established via a revision to the rule for the
ongoing/preceding cycle.
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Objective of UCMR Program
• Collect nationally representative occurrence data for
unregulated contaminants that may require regulation
under the SDWA
•	Consider data collected as part of future EPA decisions on
actions to protect public health
•	Provide data to States, local governments and to the public
for their use in decisions regarding public health protection.
National occurrence data publically available:
http://www.epa.gov/dwucmr/occurrence-data-unregulated-
contaminant-monitoring-rule
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The Fourth Unregulated Contaminant Monitoring Rule (UCMR 4) Implementation Webinar Presentation
UCMR Approach
•	UCMR approach relies on using one or more of 3
monitoring tiers
•	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)
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Typical UCMR System Applicability

System Type
Systems Serving
> 10,000
Systems Serving
< 10,000
Assessment Monitoring
(List 1 Contaminants)
CWS & NTNCWS
All systems
800 randomly selected
systems
Screening Survey
(List 2 Contaminants)
CWS & NTNCWS
All systems 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
NOTE: UCMR 4 only includes Assessment Monitoring for List 1 Contaminants
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The Fourth Unregulated Contaminant Monitoring Rule (UCMR 4) Implementation Webinar Presentation
General Process for Developing UCMR
•	Early public stakeholder meetings
•	Discuss method development for emerging contaminants
•	Discuss anticipated elements of the proposal
•	Agency development of the proposal
•	Includes a workgroup of muiti-state and multi-office
representatives, and tribal consultation
•	Proposal publication in the Federal Register (FR)
•	Provides a 60-day public comment period
•	Post-proposal public stakeholder meeting
•	Final rule publication in the FR
•	Post final-rule public stakeholder meeting
•	Review final rule and prepare for implementation
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EPA Implementation Roles
•	Review, track and determine PWS applicability and
monitor progress
•	Coordinate Laboratory Approval Program
•	Provide technical support to Regions, states, PWSs
and laboratories
•	Coordinate outreach
•	Assist and support Regional compliance efforts
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The Fourth Unregulated Contaminant Monitoring Rule (UCMR 4) Implementation Webinar Presentation
EPA Implementation Roles
•	Small PWS support:
•	Fund small system testing including kits, sample
analysis and shipping
•	Manage sample kit distribution
e Maintain lab and implementation contracts to support
UCMR
•	Conduct data review
•	Large and small PWS support:
•	Manage SDWARS reporting system and support users
•	Posts data to NCOD
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States' Role in the UCMR Program
•	Participation by states, tribes and territories (herein after
referred to as ' States") is voluntary
•	State roles are documented via Partnership Agreements
(PAs)
•	States help EPA implement the UCMR program; help to
ensure high data quality
•	PA activities can include any/all of the following:
•	Review and revise state monitoring plans (SMPs)
•	Provide inventory for small and large systems
•	Review and approve proposed ground water representative
monitoring plans (GWRMPs)
•	Provide compliance assistance
•	Notify and instruct systems
•	Collect samples
•	Other
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The Fourth Unregulated Contaminant Monitoring Rule (UCMR 4) Implementation Webinar Presentation
General Flow of SDWA Regulatory Processes
CCL
Regulatory
Determination

II
;	'
j Draft UCMR Jj
UCMR Monitoring
Results
UCMR
Preliminary
Regulatory
Determinations

Final Regulatory
Determinations
No further action if
decision is to not regulate
May develop health advisory
Rule
I
Public Review and Comment
Proposed Rule
(NPDWR)
Final Rule
(NPDWR)
Review
Six-Year Review of
Existing NPDWRs
Increased specificity and confidence in the type of supporting data used (e.g., hedth, occurrence, treatment) is needed at each stage.
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Regulatory Determinations
Every five years, the Administrator shall, after notice of the
preliminary determination and opportunity for public comment, for
not fewer than five contaminants included on the CCL, make
determinations on whether or not to regulate such contaminants,
SDWA requires EPA to publish a maximum contaminant level goal
(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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The Fourth Unregulated Contaminant Monitoring Rule (UCMR 4) Implementation Webinar Presentation
General Flow of SDWA Regulatory Processes
CCL
I
Public Review and Comment
Regulatory
Determination

II
;	'
j Draft UCMR Jj
UCMR Monitoring
Results
UCMR
Preliminary
Regulatory
Determinations
Review
Final Regulatory
Determinations
Proposed Rule
(NPDWR)
Final Rule
(NPDWR)
Six-Year Review of
Existing NPDWRs
No further action if
decision is to not regulate
May develop health advisory
Increased specificity and confidence in the type of supporting data used (e.g., health, occurrence, treatment) is needed at each stage.
April 2017
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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
•	Includes the evaluation of exposure to unregulated
contaminants connected to regulated contaminants
Any revisions to existing NPDWRs must maintain
protection or provide for greater health protection
Made every six years
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The Fourth Unregulated Contaminant Monitoring Rule (UCMR 4) Implementation Webinar Presentation
Overview of UCMR 4
Brenda Parris, USEPA
Overview
•	Applicability
•	Timeline
•	Contaminants to be monitored, methods, MRLs,
health information
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The Fourth Unregulated Contaminant Monitoring Rule (UCMR 4) Implementation Webinar Presentation
General UCMR 4 Applicability
•	All large CWSs and NTNCWSs serving more than
10,000
•	Nationally representative sample of small CWSs
and NTNCWSs
•	TNCWSs are not required to monitor
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UCMR 4 Applicability to PWSs:
Assessment Monitoring Design (List 1)
System Size
(# of people
served)
10 Cyanotoxins
20 Additional
Chemicals*
Total # of
Systems per Size
Category
Small systems
(25 - 10,000)
800 randomly selected
SW or GWUDI systems
800 randomly selected SW,
GWUDI and GW systems
1,600
Large systems**
(10,001 and over)
All SW or GWUDI
systems (1,987)
All SW, GWUDI and GW
systems (4,2.92)
4,292
TOTAL
2,787
5,092
5,892
*Only systems subject to the Disinfectants and Disinfection Byproduct Rule (D/DBPR) need to
monitor for the haloacetic acids (HAAs) and indicators
** Figures subject to change based on corrections to population served as of 12/31/15
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The Fourth Unregulated Contaminant Monitoring Rule (UCMR 4) Implementation Webinar Presentation
Timeline of UCMR 4 Activities
December 11, 2015
UCMR4 Proposal Published
Public Comment Period Begins
UCMR4 Development
(Draft Rule)
April 2017
U.S. Environmental Protection Agency
SDWARS Registration
2013 - 2014
2015
December31, 2015 Applicability Date
February 9, 2016
Public Comment Period Ends
January 13, 2016
UCMR 4 Stakeholder Meeting
May 15, 2013
June25, 2014
UCMR 4
Stakeholder
Meetings
December 20, 2016
UCMR 4 Final Rule Published;
PWS notifications
October 31, 2017 GWRMP Submittals
Laboratory Approval Process
Pre-implementation
Activities
April 12, 2017
(e.g., Stakeholders
Meetings,
SDWARS4 Testing)
2016
2017
Timeline of UCMR 4 Implementation
2017
2018 2019 2020
2021
Pre-monitoring

Post-monitoring
Implementation
Assessment Monitoring
Phase

List 1 Contaminants

• Continuation of ¦

• Complete
Lab Approval
Implementation Activities
resampling
• PWS SDWARS
• Assist PWSs with compliance
• Conclude data
regist ration/not ific
• Implement small system monitoring
reporting
ation/lnventory
• Post data quarterly to NCOD
• Finalize NCOD
• PAs, SMPs, SSIs,

• Continued
LSIs
Reporting and analysis of data
enforcement
• GWRMP submittal
• All large systems serving more than

• Outreach/trainings
10,000 people;


• 800 SW and GWUDI small systems serving


10,000 or fewer people for cyanotoxins;


• 800 small systems serving 10,000 or fewer


people for the 20 additional


contaminants.

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The Fourth Unregulated Contaminant Monitoring Rule (UCMR 4) Implementation Webinar Presentation
Contaminants to be Monitored
Cyanotoxins
EPA Method 544 (LC/MS/MS1)
Analyte
CAS Registry Number
MRL2
EPA HA3
microcystin-LA
96180-79-9
0.008 |ig/L

microcystin-LF
154037-70-4
0.006 |ig/L
1.6 Mg/L (ten-day HA for
school-age children and
adults);
microcystin-LR
101043-37-2
0.02 M-g/L
microcystin-LY
123304-10-9
0.009 M-g/L
0.3 Mg/L (ten-day HA for bottle-
fed infants and young children)
microcystin-RR
111755-37-4
0.006 jj-g/L
microcystin-YR
101064-48-6
0.02 Mg/L
nodularin
118399-22-7
0.005 ng/L

EPA Method 546 (Adda-ELISA)
i4
Total Microcystins
N/A
0.3 Mg/L
EPA HA applies
1Liquid Chromatography/Tandem Mass Spectrometry
2	Minimum Reporting Level
3	Health Advisory from the Office of Water
4(2S,3S,8S,9S,4E,6E)-3-amino-9-methoxy-2,6,8-trimethyl-10-phenyl-4,6-decadienoic acid enzyme-linked immunosorbent assay
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The Fourth Unregulated Contaminant Monitoring Rule (UCMR 4) Implementation Webinar Presentation
Cyanotoxins
EPA Method 545 (LC/ESI-MS/MS1)
Analyte
CAS Registry Number
MRL2
EPA HA3
anatoxin-a
64285-06-9
0.03 pg/L

cylindrospermopsin
143545-90-8
0.09 pg/L
3 pg/L (ten-day HA for



school-age children



through adults);



0.7 pg/L (ten-day HA for



bottle-fed infants and



young children)
1 Liquid Chromatography Electrospray lonization-Tandem Mass Spectrometry
2Minimum Reporting Level
3Health Advisory from the Office of Water
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Haloacetic Acids (HAAs)
EPA Method 552.3 (GC-ECD)1 or EPA Method 557 (IC-ESI-MS/MS)2
Analyte
CAS Registry
Number
MRL3
MCLG4
HAA5 Group
HAA6Br
Group
HAA97
Group
dichloroacetic acid (DCAA)
79-43-6
0.2 pg/L
0 pg/L



monochloroacetic acid (MCAA)
79-11-8
2.0 pg/L
70 pg/L



trichloroacetic acid (TCAA)
76-03-9
0.5 pg/L
20 pg/L
HAA5 Group
MCL5'6 = 60 ng/L


monobromoacetic acid (MBAA)
79-08-3
0.3 pg/L
N/A


dibromoacetic acid (DBAA)
631-64-1
0.3 pg/L
N/A


HAA9
Dromochloroacetic acid (BCAA)
5589-96-8
0.3 pg/L
N/A



Dromodichloroacetic acid (BDCAA)
71133-14-7
0.5 pg/L
N/A



chlorodibromoacetic acid (CDBAA)
5278-95-5
0.3 pg/L
N/A



tribromoacetic acid (TBAA)
75-96-7
2.0 pg/L
N/A



1Gas Chromatography with Electron Capture Detection
2lon Chromatography Electrospray Ionization Tandem Mass Spectrometry
3Minimum Reporting Level
4Maximium Contaminant Level Goals (MCLGs) established under the D/DBPRs
disinfection Byproduct Information Collection Rule (DBP ICR) (1997-1998)
6The HAAS group is currently regulated in drinking water at a MCL of 60 pg/L per D/DBPRs
7PWSs are required to monitor for the indicators total organic carton (TOC) and bromide in their source water at the same time as
their HAA samples. Consecutive connections are not required to take TOC and bromide samples.
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The Fourth Unregulated Contaminant Monitoring Rule (UCMR 4) Implementation Webinar Presentation
Sampling Locations - HAA Groups
• PWS HAA results will
be reported for three
groups (HAAS,
HAA6Br and HAA9)
• Resample only
locations that did not
produce valid results
for all analytes
o All HAAs must pass QC
for summation
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HAA Indicators
•	TOC, bromide measured in conjunction with HAA
monitoring
•	Use the following methods:
•	TOC: SM 5310B, SM 5310C, SM 5310D, SM 5310B-00,
SM 5310C-00, SM, 531OD-0O, EPA Method 415.3 (Rev.
1.1 or 1.2)
•	Bromide: EPA Methods 300,0 (Rev. 2.1), 300.1 (Rev.
1.0), 317.0 (Rev. 2.0), 326.0 (Rev. 1.0), ASTM D 6581-12
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HAA Groups
dichloroacetic acid (DCAA)


monochloroacetic acid (MCAA)
HAA5

trichloroacetic acid (TCAA)
(MCL
0.060

monobromoacetic acid (MBAA)
mg/L)

dibromoacetic acid (DBAA)

HAA9
bromochloroacetic acid (BCAA)
HAA6Br

bromodichloroacetic acid (BDCAA)

chlorodibromoacetic acid (CDBAA)

tribromoacetic acid (TBAA)

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The Fourth Unregulated Contaminant Monitoring Rule (UCMR 4) Implementation Webinar Presentation
Metals
EPA Method 200.81 (ICP-MS2)
Analyte
CAS Registry Number
MRL3
CCL 4 HRL4
germanium
7440-56-4
0.3 [ig/L

manganese
7439-96-5
0.4 p.g/L
300 |ig/L
1	Metals can also be measured by alternate Standard Methods (SM) 3125 or SM 3125-09 or ASTM International
D5673-10
2	Inductively Coupled Plasma-Mass Spectrometry
3Minimum Reporting Level
4 Health Reference Level
April 2017	U.S. Environmental Protection Agency	37
Pesticides
EPA Method 525.3 (SPE GC/MS1)
| Analyte
CAS Registry Number
MRL2
Health Effects j
alpha-hexachlorocyclohexane
319-84-6
0.01 |ig/L
CCL 4 HRL3: 0.006 ng/L
chlorpyrifos
2921-88-2
0.03 |ig/L
EPA HA4: 2 |ig/L
dimethipin
55290-64-7
0.2 |lg/L
HHBP5: 140 |lg/L
ethoprop
13194-48-4
0.03 [ig/L
HHBP5: 1.14 |lg/L
oxyfluorfen
42874-03-3
0.05 ng/L
HHBP5: 200 ng/L
profenofos
41198-08-7
0.3 |ig/L
HHBP5: 0.3 ng/L6
tebuconazole
107534-96-3
0.2 |lg/L
HHBP5: 190 ng/L
total permethrin (cis-& trans-)
52645-53-1
0.04 [ig/L
HHBP5: 3.34 ng/L
tribufos
78-48-8
0.07 [ig/L
HHBP5: 0.6 ng/L
1Solid Phase Extraction and Capillary Column Gas Chromatography-Mass Spectrometry
2Minimum Reporting Level
3Health Reference Level
4Office of Water Health Advisory
5Human Health Benchmark for Pesticides (HHBP)
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The Fourth Unregulated Contaminant Monitoring Rule (UCMR 4) Implementation Webinar Presentation
Alcohols
EPA Method 541 (GC/MS1)
Analyte
CAS Registry Number
MRL2
CCL 4 HRL3
1-butanol
71-36-3
2.0 Ug/L
700 |lg/L
2-propen-l-ol
109-86-4
0.4 ug/L
35 M-g/L
2-methoxyethano!
107-18-6
0.5 |ig/L

1Gas Chromatography-Mass Spectrometry
2Minium Reporting Level
3Health Reference Level
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Semivolatile Organic Chemicals
EPA Method 530 (GC/MS1)
Analyte
CAS Registry
Number
MRL
CCL 4 HRL2
butylated hydroxyanisole
25013-16-5
0.03 |ig/L

o-toluidine
95-53-4
0.007 ug/L
0.194 |ig/L
quinoline
91-22-5
0.02 |ig/L
0.01 ug/L
1Gas Chromatography-Mass Spectrometry
2 Minimum Reporting Level
3Health Reference Level
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The Fourth Unregulated Contaminant Monitoring Rule (UCMR 4) Implementation Webinar Presentation
UCMR4
Sample Collection & Frequency
Brenda Parris, USEPA
Overview
•	Sampling frequency and timing
•	Sampling locations, approach
•	Phased sample-analysis for microcystins
•	Haloacetic acid (HAA) groups
•	HAA indicators
•	Representative sampling
•	Ground water representative monitoring plans
(GWRMPs)
•	Schedules
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The Fourth Unregulated Contaminant Monitoring Rule (UCMR 4) Implementation Webinar Presentation
Sampling Frequency and Timing
Contaminant
Type
Water
Source
Time
Frame
Frequency
List 1
Contaminants -
Cyanotoxins
SWorGWUDI
March -
November*
Systems must monitor twice a month for 4
consecutive months (total of 8 sampling events)
Sample events must occurtwo weeks apart

List 1
Contaminants -
SWorGWUDI
Year-Round
Systems must monitor 4 times during a
consecutive 12-month monitoring period
Sample events must occur 3 months apart
Additional
Chemicals
GW
Systems must monitor 2 times during a
consecutive 12-month monitoring period
Sample events must occur 5-7 months apart
*Reflects the warmer months when harmful algal blooms are more likely to occur
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Example of Sampling Frequency -
Cyanotoxins
Contaminant
Type
Water
Source
Time Frame
Frequency Examples
List 1
Contaminants -
Cyanotoxins
SW or
GWUDI
March -
November*
1st & 2nd samples are collected in July (weeks 1 and
3)
311 & 4th samples are collected in August (weeks 1
and 3)
5th & 6th samples are collected in September (weeks
1 and 3)
7th & 8th samples are collected in October (weeks 1
and 3)
•	Reflects the warmer months when harmful algal blooms are more likely to occur
•	The Safe Drinking Water Accession and Review System (SDWARS 4) will be prepopulated with
the 1st & 3rd week or the 2nd & 4th week. No samples will be scheduled for the 5th week
•	Because of the monitoring frequency, resampling may not be practical. Suggest collecting
duplicate samples
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The Fourth Unregulated Contaminant Monitoring Rule (UCMR 4) Implementation Webinar Presentation
Example of Sampling Frequency -
Additional Contaminants
Contaminant
Type
Water
Source
Time
Frame
Frequency Examples



If the first sample is taken in January,
List 1
SW or GWUDI

the second must occur any time in
April, the third anytime in July and
Contaminants -

Year-Round
the fourth anytime in October
Additional

If the first sample is taken in April,
Chemicals
GW

the second sample must occur
anytime in September, October or
November
April 2017	U.S. Environmental Protection Agency	45
Sampling Locations
•	HAA Groups and Indicators
•	HAAs; D/DBPR TTHM/HAA5 distribution system(DS)
locations
•	Indicators: source water (SR) influent locations
representing untreated water
•	Cyanotoxins & Remaining UCMR 4 contaminants
•	Entry point to the distribution system (EPTDS) after
treatment is applied
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Sampling Locations - Cyanotoxins
EPA Method 546 result
evaluated (minimum
reporting level for total
microcystins = 0.3 ng/L)
ELISA result >0.3 ng/L
ELISA result <0.3 |ig/L
One sample analyzed for
cylindrospermopsin and
anatoxin-a using EPA Method
545
One sample analyzed for total
microcystins by EPA Method
546 (Adda ELISA)
EPTDS result reported to EPA
and the 544 sample will not
be analyzed for this particular
sampling event
EPTDS result will be reported to EPA
and the other microcystin sample
must be analyzed using Method 544
to identify particular microcystin
congeners
Three samples collected at the
EPTDS for cyanotoxins (two for
potential microcystin analysis
and one for
cylindrosper mops in/ana toxin).
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Sampling Locations - HAA Groups
Coverage
Stage 2 DBPR
Disinfectant
Source Water
Population
Total Distribution System
Monitoring Locations
TTHM/
HAA5
SWand GWUDI
(Subpart H)
<500
2
500 - 3,300
2
3,301 - 9,999
10,000 - 49,000
4
50,000 - 249,999
8
250,000 - 999,999
12
1,000,000 - 4,999,999
16
> 5,000,000
20
Ground water
<500
2
500-9,999
10,000-99,999
4
100,000-499,999
6
> 500,000
8
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HAA Sampling Locations, Approach
•	UCMR 4 HAA/indicator samples and D/DBPR compliance samples
can be collected at the same time
•	Input inventory into SDWARS based on current D/DBPR monitoring
requirements and status (routine or reduced)
•	PWSs can change their sampling schedules in SDWARS or request a change
after December 31, 2017 at UCMR Sampling Coordinator(5>epa.gov
•	The inventory used for your first sampling event must be used for
subsequent sampling events
•	Systems on a reduced frequency D/DBPR monitoring status must
comply with the UCMR 4 frequency requirements
•	Need to send UCMR 4 and D/DBPR samples to different labs for
analysis UNLESS:
•	A UCMR 4 approved laboratory is also certified to analyze compliance
samples (using EPA Method 552.3 or 557) in your state
April 2017	U.S. Environmental Protection Agency	49
HAA Indicator Sampling Locations, Approach
• Sample for TOC and bromide at:
•	Source water influent locations representing untreated
water entering the water treatment plant (i.e., a
location prior to any treatment)
•	The same time as HAA samples (or as close as is
feasible)
e Entry points associated with 100% purchased water
(consecutive connections) do not need to be sampled
for TOC and bromide
April 2017	U.S. Environmental Protection Agency	50
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TOC and Bromide Monitoring
SW and GWUDI
Systems
Subject to the
D/DBPRTOC
Monitoring
NOT Subject to
D/DBPR TOC
Monitoring
TOC Source Water
Sampling Site(s) From
40CFR 141.132
LT2ESWTR Source
Water Sampling Site(s)
From 40 CFR 141.703


At Influents Entering
GW Systems


Their Treatment Train



April 2017	U.S. Environmental Protection Agency	51
TOC and Bromide Sampling Locations
•	SW and GWUDI (Subpart H systems) subject to
D/DBPR TOC sampling requirements
•	Using conventional filtration
•	NOT using conventional filtration but taking TOC source
samples to reduce their D/DBPR monitoring
•	Take UCMR 4 indicator samples at D/DBPR source
water TOC locations:
•	Prior to any treatment
•	1 sample per surface water source
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TOC and Bromide Sampling Locations
•	SW and GWUDI (Subpart H systems) not subject to
D/DBPR TOC sampling requirements
•	Not using conventional filtration/or trying to reduce
D/DBPR monitoring requirements
•	Take UCMR 4 indicator samples at LT2 source
water locations:
•	For each plant at a point prior to chemical treatment
April 2017	U.S. Environmental Protection Agency	53
TOC and Bromide Sampling Locations
•	GW Systems not subject to D/DBPR TOC sampling
requirements
•	Take UCMR 4 indicator samples at ALL influents
entering treatment train
•	Can use combined taps prior to treatment
•	If have an approved GWRMP only need to take
indicator samples representing those EPs
•	Only take indicator samples from active wells at time of
collection
• Add a comment in SDWARS for the non-active locations
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Sampling Reminders
•	Follow the instructions in the kit
•	Complete the sample tracking form for each kit
•	Freeze ice packs ahead of time
•	Sample Monday through Wednesday or when the
laboratory designates
•	Fill bottles completely but do not overfill
•	Tightly secure the caps to the correct bottles
•	Record the data elements for SDWARS
April 2017	U.S. Environmental Protection Agency	55
Representative Monitoring
Ground Water Representative Monitoring Plans
(GWRMPs)
and
Representative Connections
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Two Types of Representative Sampling
•	Ground Water Representative Monitoring Plans
(GWRMPs) - large ground water 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
wifl be recognized, a copy of the approval from their state or
EPA must be submitted to the
UCMR Sampling Coordinator(5)epa.gov
•	Representative Connections - systems that purchase
water with multiple connections from the same
wholesaler may select one representative connection
from that wholesaler
April 2017	U.S. Environmental Protection Agency	57
GWRMPs
•	Systems can submit a
GWRMP if;
•	Ground water as a source
•	All of their well sources
have either the same
treatment or no treatment
•	Multiple EPTDSs from the
same source
•	Submit documentation to
support your proposal that
the specified wells are
representative of other
wells
• Must demonstrate that the
representative EPTDS:
•	Draws from the same
aquifer as the wells it will
represent
•	Is representative of the
highest annual volume
producing and most
consistently active wells in
the representative array
•	Will be in use at the
scheduled sampling time
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GWRMPs
• Must submit the following information for each
proposed representative sampling location:
•	PWSID Code
•	PWS Name
•	PWS Facility Identification Code
•	PWS Facility Name
•	PWS Facility Type
•	Sampling Point Identification Code
•	Sampling Point Name
April 2017	U.S. Environmental Protection Agency	59
Representative Sampling
•	New or previously approved GWRMPs must be
submitted to the
UCMR Sampling Coordinator(a)epa.gov by:
•	October 31, 2017
•	Note: the original deadline of April 19, 2017 was
extended
•	All approved representative locations must be
loaded into SDWARS by PWS no later than:
•	December 31, 2017
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The Fourth Unregulated Contaminant Monitoring Rule (UCMR 4) Implementation Webinar Presentation
UCMR 4 Laboratory Approval
Process and MRLs
Brenda Parris, IJSEPA
UCMR 4 Laboratory Approval Program
•	Laboratory Approval Program started on December 11,
2015 with the publication of the proposal
•	Similar to the process used in ali previous UCMR cycles
•	Only UCMR 4 EPA-approved laboratories can analyze UCMR
4 samples collected at PWSs
•	Approval is by method and by individual laboratory locations
•	A laboratory may apply for approval for any method
•	Laboratories need to meet:
•	UCMR 4 approval program criteria
•	Required equipment criteria
•	Laboratory performance criteria
•	Data reporting criteria
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UCMR 4 Laboratory Approval Manual
•	Procedures for obtaining UCMR 4 approval and
procedures for revocation of approval
•	Quality assurance (OA) and quality management
requirements
•	Initial demonstration of capability (IDC)
•	Minimum reporting level (MRL) verification
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UCMR 4 Laboratory Approval Manual
• 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
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Laboratory Approval 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
April 2017	U.S. Environmental Protection Agency	65
Step 1 - Request to Participate
•	Interested laboratories submitted a written
request to the
UCMR Sampling Coordinator(5)epa.gov
•	EPA then provided:
•	Registration material
•	Customized application package
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Step 2 - Registration
•	Completed registration sheet included:
•	List of the UCMR 4 methods,, for which the laboratory sought
approval
•	Laboratory information
•	Mailing and shipping address
•	Contact information
•	Registration closed February 21, 2017 (except TOC and
bromide)
•	Laboratories (including PWS labs) that only wish to analyze TOC
and/or bromide may apply for approval through December 1, 2017
•	These PWS laboratories must complete registration and submit
documentation that they are authorized by their primacy state to
analyze TOC and/or bromide compliance monitoring samples
under the Stage 2 Disinfectants and Disinfection Byproducts Rule
by December 15, 2017.
April 2017	U.S. Environmental Protection Agency	67
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 general application
materials by April 19, 2017 (one week from today)
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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
April 2017	U.S. Environmental Protection Agency	69
Step 5 - Proficiency Testing
•	EPA provides method-specific PT samples
•	Laboratories:
•	Analyze PT sample(s) for each analyte and method
•	One successful PT per method
•	No PT studies after monitoring begins but audits on-
going during monitoring
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Step 6 - Written EPA Approval
•	After successful participation in a PT study for a
specific method, EPA will notify the laboratory in
writing
•	EPA will post a list of approved laboratories and
associated methods at:
https://www.epa.gov/dwucmr
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Maintaining Approval
•	Adhere to QA/QC measures in the methods, rule
ianguage and the UCMR 4 Laboratory Approval
Manual
•	Post analytical results and required QC data via
SDWARS within 120 days of sample collection
•	Successfully address audit findings (as needed)
and meet all the other stated conditions
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MRL Background
•	MRL is an estimate of the quantitation level,
achievable with a 95% confidence, by at least 75%
of laboratories nationwide
•	Established by EPA with data from several
laboratories performing LCMRL studies
•	LCMRL - estimate of lowest concentration at
which measurements of specified quality can be
repeatedly made
• Simultaneous application of precision and accuracy
April 2017	U.S. Environmental Protection Agency	73
MRLs
•	Established to achieve quality and consistency
across laboratories, whiie allowing for reasonable
national laboratory capacity
•	MRLs are generally established as low as is
feasible; typically lower than current HRLs and
health advisories
•	EPA will consider raising MRLs if there is evidence
that an MRL is unattainable/impractical
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Lunch
SDWARS & Reporting
Requirements
Melissa Simic, EPA
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The Fourth Unregulated Contaminant Monitoring Rule (UCMR 4) Implementation Webinar Presentation
Overview
•	Central Data Exchange (CDX) account
•	Customer retrieval keys (CRKs)
•	Large System Workflow
•	Notification letter and tracking
•	Update contact/inventory/schedule
•	Reporting requirements and data elements
April 2017	U.S. Environmental Protection Agency	77
CDX
• EPA will again be using an internet-based
electronic reporting system that utilizes a secure
access portal, the CDX, to gain access to SDWARS
•	https://cdx.epa.gov/
•	https://www.epa.gov/dwucmr/reporting-
requirements-fourth-unregulated-contaminant-
monitoring-rule-ucmr-4
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CDX
To register to use the CDX:
•	Go to http://cdx.epa.gov/preregistration/
•	Enter the customer retrieval key (CRK) you received by
mail
•	All large (that did not pre-register) and small systems should
have received a CRK; if you lost/did not receive a CRK, please
contact the UCMR Sampling Coordinator(S>epa.gov
•	Labs will receive CRKs upon UCMR 4 approval
•	Follow the directions to complete registration
We recommend you do this as soon as possible
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SDWARS Large System Workflow
1.	Log in to CDX UCMR 4 (applies to small systems)
2.	Select SDWARS4 and accept notification letter
(applies to small systems)
3.	Add official and technical contacts
4.	Add inventory
5.	Review/edit inventory
6.	Review sampling schedule
7.	Add zip codes
8.	Nominate user for your PWS (optional)
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Step 1: Log in to CDX UCMR 4
cot <>'•' fxctunqe
Log in to CDX
User ID
Log In Register with CDX
Forgot your Password?
Forgot your User ID?
Warning Notice and Privacy Policy
April 2017	U.S. Environmental Protection Agency	81
Step 2: Select SDWARS4 and Accept
Notification Letter
•	Applies to large and small systems
•	To view and accept your notification letter you
must log in to SDWARS4
•	Status of acceptance of notification is tracked in
SDWARS4
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Step 2a: Select SDWARS4
CDXr Central Data Exchange
Inbox | My Profile Submission History |
Sc iviccs
OCManwir
CDX Service Availability
Status s Program Service Name -
Role *

A UCMR4: Unregulated Contaminants Monltorlnq Rule 41
[sDWARS4 I

1 Ten

T
News and Updates
No news/updates.
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Step 2b: Application Profile Settings
gRute
Application Profile Settings
Organization Name
PWS Name
Program Client ID
PWS Identification Number
Program
'LMR-

Once logged-in your personal PWS ID and name will appear in those sections,
which are marked in yellow above. Click "Proceed" to view Notification Letter.
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NOTIFICATION LETTER
January 3, 2017
Notification Letter
Q A PWS user must eccept the notification letter.
RE: Unregulated Contaminant Monitoring for Surface Water (SW) and Ground Water Under the Direct Influence of Surface Water (GWUDI) Systems Serving over 10,000 Persor
Dear Public Water System::
The purpose of this letter is to notify your public water system (PWS) of its monitoring requirements under the revision to the Unregulated Contaminant Monitoring Rule (UCMR4). The
U.S. Environmental Protection Agency (EPA) published the final rule detailing the upcoming monitoring of unregulated contaminants at PWSson December 20, 2016, establishing a
new list of contaminants to be monitored and the conditions for that monitoring. This rule benefits public health by providing EPA and other interested parties with scientifically valid
data on the national occurrence of selected contaminants in drinking water. This dataset is one of the primary sources of information on occurrence, levels of exposure and population
exposure EPA uses to develop regulatory decisions for contaminants in the public drinking water supply.
Under the UCMR4, all community water systems and non-transient, non-community water systems serving more than 10,000 persons must participate in Assessment Monitoring (AM).
Our records indicate that your surface water system must monitor for all List 1 contaminants: metals, pesticides, semi-volatile organic chemicals (SOCs), alcohols (AM 1),
haloacetic acids (HAAs) (AM 2), and cyanotoxins (AM 3).
What must your PWS complete in SDWARS before December 31, 2017?
Similar to reporting under UCMR3, PWSs will use the Central Data Exchange (CDX) (https ://cdx.epa.aov/1 to access the updated version of the Safe Drinking Water Accession and
Review System (SDWARS4). PWSs are required to:
enter your official and technical contact information;
review and, if necessary, update your sample location data by adding missing locations (e.g., Stage 1 and Stage 2 Disinfectants and Disinfection Byproduct Rules
sampling locations for the HAAs), indicating ineligible locations or editing basic information about the locations; and
review and, if you wish, revise your monitoring schedule assigned by the EPA.
What must your PWS do during UCMR4 monitoring?
Your PWS must ensure that samples are properly collected, packaged and shipped to a UCMR4 EPA approved laboratory. Your PWS is also responsible for providing the data
elements required for each sampling location (e.g., disinfection type, treatment type etc.) in SDWARS. Once data are posted to SDWARS by your laboratory, your PWS will have 60
days to review and act upon these results. If you choose not to review these results in this time frame, they will be considered final. Additionally, community water systems are
required to address their UCMR monitoring results in their annual Consumer Confidence Report (CCR) whenever unregulated contaminants are detected fhttps./Avww epa.aov/ccr).
Where can I find more information about UCMR4?
EPA recommends that you review the complete rule and supporting reference materials addressing UCMR4 at httos:/Awww epa.aov/dwucmr/fourth-unreaulated-contaminant-
monitoring-rule.
• The "Revisions to the Unregulated Contaminant Monitoring Rule (UCMR4) for Public Water Systems and Announcement of Public Meeting" [EPA-HQ-OW-2015-0218;
FR L-9956-71-0W];
• UCMR4 implementation fact sheets: Metals, Pesticides, SOCs, and Alcohols (AM 1), Haloacetic Acids (HAAs) (AM 2), Cyanotoxins (AM 3) and General Information;
EPA approved laboratories forUCMR4 (the list will be updated as additional laboratories are approved);
Outreach materials and announcements for stakeholder meetings and trainings.
Analytical results from UCMR are publically available in the National Contaminant Occurrence Database (NCOD); for a summary of the NCOD results, tips for querying NCOD, and
health effects information please refer to the UCMR Data Summary document.
This notification letter is being sent to you as the official representative of this PWS. If someone else at your PWS needs this information, such as the plant operator,
please provide them with a copy of this letter. Your cooperation in meeting these requirements is appreciated.
For questions regarding SDWARS or CDX, please contact the CDX Help Desk at 1-888-890-1995. For implementation or general questions, please contact the UCMR Message
Center at 1-800-949-1581 nr 11CMR4(fTiniec.com. Thank you for your cooperation.
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Step 3: Add Contacts
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Step 3a: Add Official Contact
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Step 3b: Confirm Official Contact
MyCDX » PWS Home > Contac
PWS Contacts
0 A! PA'Ss must have an "Off
contact types. Esffl or delete thei
Click the delete icon to remove
ts
iciar contact defined as the administrative representative for the PWS and 8 TechnicaT
se contacts using the appropriate inks any tine you experience changes in personnel. C
contact that may be contacted as an alternate representative. Specify additional c
(ck Add Contact to include a contact Click the edit icon to revise the infbrmatia
ontacts as "Other
n for that contact
You mat assign a Technical and OtficiBl contact mmetaately It you have just deleted either of these, you must add a i
and OflicBl contact
lew contact to comply with UCMR4. You cannot proceed m SOWARS untl you as
¦Minna
i ©
Contact Name
Contact Email
Affiliation/Organization Contact Type

Howard The Duck
howard due k @marve.universe -org
Marvel Universe |o flic el J
/s
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April 2017
Step 3c: Add Technical Contact
O Hw must complete eveiy (fea martefl with sn • Al contact Information is confidential and is only available to regulatory
authorities You must clcl Save Changes tot the infonraten to be added so the database Use the Receive Auto Email
Last Name*
Contact Type*
Organization'
Mailing Address 1
~	\ j Scheduling Reminders
~	; j Lab Posted Data Notific at
~	S Any Missing ACctitional Data Notifications
U.S. Environmental Protection Agency
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Step 4: Add Inventory
Designate and Review Your Inventory
a ©
CDX,
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Step 4: Add Inventory




How to...

Designate and
m. and a! the corresponding distribution
The table Includes at the fac ility.'sample points that EPA currently has within our database Select the 'Yes' button m the
'Sampling Required' column If UCMR sampling e required at a sample location in the table If UCMR sampling
a facilty at your PWS that is not In the table, c lick 'Add Facility' After the facility 6 added, you wll be prompted to add
sample point. If UCMR sampling is required at a sample point that is not in the table but the facility is listed, cb
Select the'No' button In the'Sampling Required' column if UCMR sampling is not required at a sample location in the table,
acility ID' or 'Sample Point ID' to make changes to that specific facility or sample point.
Figure 1
Upload Facilities & Sample Points
Step 4: Add Inventory
Inventory can be:
• Typed in manually (Figure 1)
Uploaded by creating a text
file (Figure 2)
Figure 2
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Step 4: Add
Inventory
•	Create a file for a
bulk upload using the
following format
•	If subject to the
D/DBPRs include
your D/DBPR
distribution and
source water
locations for the HAA
monitoring
File Structure For: Add Facility with Sample Point
The Add Facility with Sample Point upload file:
. Must be a tab delimited text file
. Must c ontain a header row with the exact c olumn names
. Columns must be in the exact order shown below
listed below

Column Name
Data Type Required
Notes

Facility Id
Numeric (5) Yes
Must be exactly 5 numeric digits

Fac ility Name
String (50) Yes


Facility Type
String (2) Yes
Use 2-digit codes only;
CC (Consecutive Connection)
DS (Distribution System)
IN (Intake (Source Water))
OT (Other)
SS (SampBng Station)
TP (Treatment Plant)

WaterType
String (2) Yes
Use 2-digit codes only:
GU (Groundwater UDI Surface Water)
GW (Groundwater)
MX (Mixed)
SW (Surface Water}

SamplePointld
String (25) Yes


SamplePointName
String (50) Yes


(SS.PWS.H7Da)


Close
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Step 4: Add
Inventory
Use inventory (only
includes entry points)
from the previous
SDWARS3 system
Select those Facilities
that are valid and import
if subject to the
D/DBPRs, manually add
your D/DBPR
distribution and source
water locations for the
HAA monitoring
Import Facilities and Sample Points from SDWARS3
Q Select she sample locations from SDWARS3 which need to be loaded i
review your inventory befoie it is addeo to the database.
nto SOWARS4. You must dick 1

Facility Facility Water Samp
* ID Facility Name Type Type ID
Name
Type
«£ 00001 Treatment TP GW EP00'
Plant#!
1 EPfromTP#1
EP
«S 00002 Treatment TP GW EP00:
Plant #2
1 EP from TP #2
G
EP
^ Cancel

Import Facilities and Sample Points from SDWARS3
0 Select the Import button to f
idd the inventory to the database.


Facility
ID
Facility Name
Facility
Type
Water
Type
Sample Point
ID
Sample Point
Name
Sample Point
Type
00001
Treatment Plant
TP
GW
EP001
EPfromTPSI
EP
00002
ss.pvus.iid:
Treatment Plant
>3
TP
GW
EP002
EP from TP #2
EP
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Step 5: Review/Edit Inventory
Designate and Review Your Inventory
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Step 5: Review/Edit Inventory
Designate and Review Your Inventory

Sanpfcg required7
EP (torn TP SI
Sample Pont Tyte
To add new Facilities and Sample Points: use the comprehensive search function to locate necessary inventory
April 2017	U.S. Environmental Protection Agency	96
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Step 5: Review/Edit Inventory
•	Create a new Facility and Sample Point
•	Add a Sample Point to an existing Facility
Create a New Fae «ty and Sample PoM
Add Sample Point to Your Facility
O W "1MM— ¦ ¦n MVMapMMlMMMnHia
"W*"-
lMfttfOMB*
Q vou must c oinptete every field marked with an i•]
Select an existing Facility to which the sample point (SPl wl be added. If the facility you are looking (or is not listed, you must
c reate It by c 6: king Add Facility Ink on the previous page.
¦ftu must click Save Changes for the information lo be acoec to the database
Facility* •
Sample Point ID*
w
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The Fourth Unregulated Contaminant Monitoring Rule (UCMR 4) Implementation Webinar Presentation
Step 5: Review/Edit Inventory
• Once Facility
information is
complete, save
changes
• A green bar will
appear at the top of
the page
Edit Facility
0 vbu must complete ever/ field marked wth an (*).
Make appropriate Changes to your fac ility You must c lick Save Changes to atSfl the information to the database.
PWS: 990000011 / Test PWS #11
Facility ID
00001
Facility Name"
Treatment Rant #1
Facility Type'
TP - Treatmsnt Plant *
Water Type'
GW - Groundwater »
(SS.PAS. 1103d)
Save Changes
1 y Fscity 00001 has tx
sen updated
¦i

[CDjjcJ
MyCDX > PWS Home > PWS Inventory
Designate and Review Your Inventory

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Step 5: Review/Edit Inventory
Once Sample Point
information is
complete, save
changes
• A green bar will
appear at the top of
the page
Edit Sample Point
Q Vbu must complete every field marked with an (*).

"The name can be anything up to 50 characters

Vbu must c bck Save Changes for the information to be added to the database

PWS: 990000011 / Test PWS #11
Facility: 00001 - Treatment Plant #1

Sample Point 10 EP001

Sample Point Name' EPfromTP#1
Sample Point Type EP

lSS.PMS.1103e)
| Save Changes
My COX > PWS i
Designate and Review Your Inventory
U.S. Environmental Protection Agency
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The Fourth Unregulated Contaminant Monitoring Rule (UCMR 4) Implementation Webinar Presentation
Step 6: 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
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Step 6: Review Sampling Schedule
• Select Monitoring Type to review sampling schedules
for each Sampling Point
SEPA

J Logout

MyCDX » WIS Home > PWS Sc hedule
Review Your Schedule

^ PWS
Q your PWSs must conduct data (or multiple monitoring types. Cfel Select Monitoring Type toe boose the schedule you wish to review





1 -v.i - - 1

Inventory
¦ AM2 - Assessment Monitoring for HAAs

Schedule


Zip Code
NomnateUser
Notification Letter
' SOWAR S4 Semap
gjjMyCDX

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Step 6: Review Sampling Schedule
Review Your Schedule
patllM for Sompl» Evant 1 iSEI) ir you wlalt
Mt>lliu|
Review Schedule
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Step 6: Review Sampling Schedule
If you change SE1 month and year, the schedule for SE2 is
automatically updated
Facility. CCCOIi TiaHmvt Pun »t
S«n,>l. Point EPtXi EP fcoro TP
Facility Type TP
Mktor CSW
Sampfa Point Type: EP
SE1 date
changed
Ed# Sample Point Schedule
O Select a Sate from aeflropoi
ial suiting evert iTtosnf sutomaKs^' «
Water Type: GVV
Sample Point Type: EP
Monitoring Requirement: Al
Sampling Event	SE2dateB
=^ftngE-- recalculated
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Step 7: Zip Codes
Click "Add Zip Codes" button
Pop-up window lets you add zip codes
Zip Codes
Zip codes can be
copy/pasted or typed
Q "ifeu c an copy/paste a c omprebensive list of zip i
Add PWS Zip Codes
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Step 8: Nominate User for Your PWS
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Step 8: Nominate User for Your PWS
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SDWARS Large Systems Workflow: Review
•	Step 1: Log in to CDX and select SDWARS4
•	That should automatically open your systems notification letter
•	Step 2: Read and accept the Notification Letter
•	It can be printed and viewed at any time
•	Step 3: Error in red will indicate that you need to add
official and technical contacts
•	Make sure you check boxes to receive SDWARS notifications
•	Step 4: Once both contacts are in the system, add
inventory
•	Manually type in, bulk upload, import from SDWARS3
•	Add D/DBPR distribution and source water locations
•	Use filter to search through multiple entries
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SDWARS Large Systems Workflow: Review
•	Step 5: Option of editing, deleting or adding new
Facilities/Sample Points
•	To review/edit click cm actual Facility ID or Sample Point ID
•	Step 6; Review sampling schedules
•	By changing the SE1 month and year, schedule for the SE2,
SE3 etc. will automatically update
•	Step 7: Add zip codes
•	Type zip codes or copy and paste
•	Step 8: Nominate a user for your PWS (optional)
•	Read the terms and conditions and provide CRK to nominee
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Remember
•	All notifications and nominations can be printed
into PDF and saved for your records
•	Every page with data has a download and print
icon on the top right
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Reporting Requirements and
Data Elements
Large System Reporting
• Sampling location information
•	PWS enter via SDWARS by December 31, 2017
•	Some partnered states will provide this information to
EPA for you (LSI)
•	Changes after deadline must be submitted (with
reason) and approved by EPA's
UCMR Sampling Coo rdinator(S> epa.gov
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Large System Reporting
• Change schedule
•	Enter via SDWARS by December 31, 2017
•	Basis for change includes:
•	Update to most vulnerable months for cyanotoxin monitoring
•	Sync with compliance monitoring for the UCMR 4 HAA
monitoring
•	Budget/planning considerations
•	Other
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Large System Reporting
•	Samples
•	PWSs must input all data elements specified in
§141.35(e) Table 1 (e.g., disinfectant type, treatment
information and disinfectant residual) into SDWARS
•	Monitoring results
•	Entered by UCMR 4 approved laboratory to SDWARS
•	Reviewed and submitted by PWS (default approval
after 60 days)
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Small System Reporting
•	Provide the most up-to-date contact and inventory
information for your PWS on the monitoring
review sheet (MRS)
• Will be mailed to you by an EPA contractor
•	Some partnered states will provide this
information to EPA for you (SSI)
•	An EPA contractor will input the data into SDWARS
(e.g., inventory, zip codes and schedule) and send
the PWSs the supplies necessary for the sample
collection
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Small System Reporting
• Why is SDWARS 4 important to small systems?
•	Notification Letter
•	View sampling locations
•	View schedule
•	MOST IMPORTANTLY view your analytical results in
"real-time"
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Small System Reporting
•	Samples
•	PWSs must report all data elements specified in
§141.35(e) Table 1 on each sample tracking form (STF)
as appropriate (e.g., disinfectant type, treatment
information and disinfectant residual)
•	Monitoring results
•	Entered by EPA-contracted laboratory into SDWARS
•	Reviewed data from contracted laboratory by EPA
•	Viewed by PWS
• Contact EPA if there are any concerns with the data
April 2017	U.S. Environmental Protection Agency	117
Large and Small Systems - Reporting Data
Elements §141.35(e)
1. Public Water System Identification (PWSID)
Code
16. Analytical Method Code
2. Public Water System Name
17. Extraction Batch Identification Code
3. Public Water System Facility Identification Code
18. Extraction Date
4. Public Water System Facility Name
19. Analysis Batch Identification Code
5. Public Water System Facility Type
20. Analysis Date
6. Water Sou rce Type
21. Sample Analysis Type (more details)
7. Sampling Point Identification Code
22. Analytical Results—Sign
8. Sampling Point Name
23. Analytical Result—Measured Value
9. Sampling Point Type Code
24. Additional Value
10. Disinfectant Type (more details)
25. Laboratory Identification Code
11. Treatment Information (more details)
26. Sample Event Code
12. Disinfectant Residual Type
27. Bloom Occurrence
13. Sample Collection Date
28. Cyanotoxin Occurrence
14. Sample Identification Code
29. Indicator of Possible Bloom - Treatment
15. Contaminant
30. Indicator of Possible Boom - Source
Water Quality Parameters
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Disinfectant Type - Data Element 10
PEMB = permanganate (applied before
SR sample location)
HPXB = hydrogen peroxide (applied
before 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)
OZON = ozone
ULVL = ultraviolet light
OTHD = all other types of
disinfectant/oxidant
NODU = no disinfectant/oxidant used
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Treatment Information - Data Element 11
CON = conventional (non-softening)
SFN = softening conventional
RBF = river bank filtration
PSD = pre-sedimentation
INF = in-line filtration
DFL = direct filtration
SSF = slow sand filtration
BIO = biological filtration
UTR = unfiltered treatment
PAC = application of powder activated
carbon
GAC = granular activated carbon (not part
of filters in CON, SCO, INF, DFL or SSF)
AIR = air stripping (packed towers, diffused
gas contactors)
POB = pre-oxidation/disinfection with
chlorine (applied before SR sample
location)
MFL = membrane filtration
I EX = ionic exchange
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
DKN = Do not know
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Disinfectant Residual Type - Data Element 12
•	CL2 = Chlorine (i.e., originating from addition of
free chlorine only)
•	CL02 = chlorine dioxide
•	CLM = Chloramines (originating from with addition
of chlorine and ammonia or pre-formed
chloramines)
•	CAC = Chlorine and chloramines (if being mixed
from chlorinated and chloraminated water)
•	NOD = No disinfectant residual
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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, CCC and QCS.
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.
QHS = quality HAA; HAA sample collected and
submitted for quality control purposes.
SUR = surrogate standard; a standard that assesses
method performance for each extraction.
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The Fourth Unregulated Contaminant Monitoring Rule (UCMR 4) Implementation Webinar Presentation
Bloom Occurrence - Data Element 27
Preceding the finished water sample collection, did you
observe an algal bloom in your source waters near the
intake?
•	YES = if yes, select all the YESs that apply:
•	YD = yes, on the day the UCMR cyanotoxin sample was collected
•	YW = yes, between the day the sample was taken and the past
week
•	YM = yes, between the past week and past month
•	YY = yes, between the past month and past year
•	YP = yes, prior to the past year
•	MO = have never seen a bloom
•	NA = purchased consecutive connection and no source
water
April 2017	U.S. Environmental Protection Agency	123
Cyanotoxin Occurrence - Data Element 28
Preceding the finished water sample collection, were cyanotoxins
ever detected in your source waters near the intake and prior to
any treatment (based on sampling by you or another party)?
• YES = if yes, select all the YESs that apply:	• Select all that: apply (i.e., all that were
• YD = yes, on the day the UCMR cyanotoxin	detected} if you answered YES to
sample was collected	detecting cyanotoxins in source water:
•	MIC = Microcystes
•	CYL = Cylindrospermopsin
•	ANA = Anatoxin-A
•	SAX = Saxitoxins
•	OTH = Other
•	DK = Do not know
sam
•	YW = yes, between the day the sample was
taken and the past week
•	YM = yes, between the past week and past
month
•	YY = yes, between the past month and past year
•	YP = yes, prior to the past year
•	NO = have never detected cyanotoxins in source water
•	NS = unaware of any source water cyanotoxin
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The Fourth Unregulated Contaminant Monitoring Rule (UCMR 4) Implementation Webinar Presentation
Indicator of Possible Bloom - Treatment
Data Element 29
Preceding the finished water sample collection, did you
notice any changes in your treatment system operation
and/or treated water quality that may indicate a bloom in
the source water?
• YES = if yes, select all that apply:
•	DFR = Decrease in filter runtimes
•	ITF = Increase in turbidity in filtered water
•	ICD = Need for increased coagulant dose
•	TOI = Increase in taste and odor issues in finished water
•	IOD = Need for increase in oxidant/disinfectant dose
•	IDB = Increase in TTHM/HAA5 in finished water
•	OTH = Describe other changes
. NO = no changes
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Indicator of Possible Bloom - Source Water Quality
Parameters - Data Element 30
Preceding the finished water sample collection, did you observe any
notable changes in source water quality parameters (if measured)?
• YES = if yes, select all that apply to the source water:
ITP = Increase in water temperature
ITU = Increase in turbidity
IAL = Increase in alkalinity
ITO = Increase in total organic carbon
ICD = Increase in chlorine demand
IPH = Increase in pl-l
ICA = Increase in chlorophyll a
IPY = Increase in phycocyanin
INU = Increase in nutrients (example: nitrogen or phosphorus)
OTH = Describe other changes
NO = no changes observed
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The Fourth Unregulated Contaminant Monitoring Rule (UCMR 4) Implementation Webinar Presentation
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
e Laboratory posts results to SDWARS within 120 days of
sample collection (shorter for contracts)
•	Systems access their data in SDWARS
April 2017	U.S. Environmental Protection Agency	127
SDWARS4 Development
•	File formats for laboratories will be made available
this summer/fall
•	Text files
•	XML
•	Training
•	Webinar for laboratories
•	Webinar for water systems
•	Laboratory beta-testing of SDWARS4
•	Improvements to user interface
•	Practice uploading data
April 2017	U.S. Environmental Protection Agency	128
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The Fourth Unregulated Contaminant Monitoring Rule (UCMR 4) Implementation Webinar Presentation
Risk Communication
Melissa Simic, USEPA
Overview
•	Reference Concentrations
•	Consumer Confidence Reports
•	Public Notification requirements
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Risk Communication
•	UCMR reference concentrations are compiled from publically available EPA
sources
•	Review the supporting documentation referenced in the UCMR Data Summary
(updated quarterly)
•	Examples of secondary sources
•	Drinking Water Standards and Health Advisories
" CCL 4 Contaminant Information Sheets
•	Human Health Benchmark for Pesticides (HHBPs)
•	Examples of sources where you can find additional information on the
critical study, other health effects,, chemical properties, sources, exposure
etc.
•	Integrated Risk Information System (IRIS)
•	Office of Pesticides Program (OPP)
•	Office of Water- Drinking Water Contaminant Human Health Information
•	Agencvfor Toxic Substances & Disease Registry (ATSDR)
•	UCMR 4 Compendium
April 2017	U.S. Environmental Protection Agency	131
Risk Communication
•	The reference concentration does not represent an
"action level" (EPA requires no particular action based
simply on the fact that UCMR monitoring results
exceed draft reference concentrations)
•	The reference concentration should not be interpreted
as any indication of agency intent to establish a future
drinking water regulation at this or any other level
•	Decisions whether or not to regulate the contaminant
in drinking water will continue to be made following
the agency's Regulatory Determination process
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April 2017	U.S. Environmental Protection Agency	133
Risk Communication
•	The intent of the UCMR reference
concentrations is to provide, where
possible, context around the detection
of a particular UCMR contaminant
above the MRL
•	EPA will continue to look for ways to
improve the UCMR Data Summary to
make sure we are connecting you to the
most appropriate information and
messaging materials
•	Follow state, Consumer Confidence
Report and Public Notification
requirements
Public Access to UCMR Results
• UCMR results can be viewed by the public:
•	At https://www.epa.gov/dwucmr
•	In annual Consumer Confidence Reports (CCRs)
•	Required by §141.153(d)(7) Community water systems (CWSs)
•	Detected unregulated contaminants, for which monitoring is required
(except Cryptosporidium), the table(s) must contain the average and
range at which the contaminant was detected. The report may include
a brief explanation of the reasons for monitoring for unregulated
contaminants.
•	Example language: unregulated contaminants are those, for which EPA
has not established drinking water standards. The purpose of
unregulated contaminant monitoring is to assist EPA in determining the
occurrence of unregulated contaminants in drinking water and whether
future regulation is warranted.
•	For additional information: https://www.epa.gov/ccr
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The Fourth Unregulated Contaminant Monitoring Rule (UCMR 4) Implementation Webinar Presentation
Public Access to UCMR Results
• In Public Notification
•	Required by §141.207 for CWS and NTNCWS
•	PWSs must notify persons served of the availability of the
results no later than 12-months after monitoring results are
known
•	Follows Tier 3 public notice §141.204(c), (d)(1) and (d)(3)
• Special requirement- notice must identify a person and the
telephone number to contact for information on monitoring
results
•	CWSs may include their public notice within their CCRs
•	For additional information:
https://www.epa.gov/dwreginfo/public-notification-rule
April 2017	U.S. Environmental Protection Agency	135
Closing Remarks
Melissa Simic, USEPA
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The Fourth Unregulated Contaminant Monitoring Rule (UCMR 4) Implementation Webinar Presentation
Webinar Participant Questions
Figure 1
Figure 2
Click on "+" next to
"Questions" in the control
panel (Figure 1) to submit
questions/comments
• You may need to unhide the
control panel to ask a question
(Figure 2)	Figure3
Type a question in the box;
click send (Figure 3)

® Polls (0/0)
00
' f+J ^lestions
®@
0 Chat
(D0
| Show Control Panel
[Enter a question for staff}
April 2017
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(s)
137
If You Have Questions Following This
Meeting/Webinar
UCMR Homepage:
•	https://www.epa.gov/dwucmr
UCMR 4:
•	https://www.epa.gov/dwucmr/fourth-unregulated-
contaminant-monitoring-rule
•	Go to UCMR 4 Docket (EPA-HQ-OW-2015-0218) at
http://www.regulations.gov for federal register notice and
supporting documents
Occurrence Data:
•	https://www.epa.gov/dwucmr/occurrence-data-
unregulated-contaminant-monitoring-rule
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The Fourth Unregulated Contaminant Monitoring Rule (UCMR 4) Implementation Webinar Presentation
UCMR Contacts
IJCMR Questions/SDWARS Data Entry?
•	UCMR Message Center: (800) 949-1581
•	UCMR4(5>glec.com
•	UCMR Sampling Coordinator@epa.gov
CDX Help?
•	SDWARS registration and technical issues
•	Provide details and screen shots
•	CDX Help Desk: (888) 890-1995
•	helpdesk@epacdx.net
Lab Approval Program:
•	UCMR Lab Approval@epa.gov
Safe Drinking Water Questions?
•	Safe Drinking Water Hotline: (800) 426-4791
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Break
2:50 to 3:00
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The Fourth Unregulated Contaminant Monitoring Rule (UCMR 4) Implementation Webinar Presentation
Questions and Discussion
Abbreviations and Acronyms
•	CCC - Continuing Calibration Check
•	CCL - Contaminant Candidate List
•	CDX - Central Data Exchange
•	CWS - Community Water System
•	CRKs - Customer Retrieval Keys
•	D/DBPRs - Disinfectants and Disinfection Byproduct Rules
(including Stage 1 and Stage 2 D/DBPRs)
•	DS - Distribution System
•	ELISA- Enzyme-linked Immunosorbent Assay
•	EPTDS - Entry Point to Distribution System
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The Fourth Unregulated Contaminant Monitoring Rule (UCMR 4) Implementation Webinar Presentation
Abbreviations and Acronyms
FR - Federal Register
GC - Gas Chromatography
GC-ECD - Gas Chromatography with Electron Capture
Detection
GC/MS - Gas Chromatography/Mass Spectrometry
GW- Ground Water
GWRMPs - Ground Water Representative Monitoring Plans
GWUDI - Ground Water Under the Direct Influence of
Surface Water
April 2017	U.S. Environmental Protection Agency
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Abbreviations and Acronyms
•	HAAs - haloacetic acids
•	HAAS -dichloroacetic acid, monochloroacetic acid,
tribromoacetic acid, monobromoacetic acid, dibromoacetic acid
•	HAA6Br - monobromoacetic acid, dibromoacetic acid,
bromochloroacetic acid, bromodichloroacetic acid,
chlorodibromoacetic acid, tribromoacetic acid
•	HAA9 - dichloroacetic acid, monochloroacetic acid,
trichloroacetic acid, monobromoacetic acid, dibromoacetic acid,
•	bromochloroacetic acid, bromodichloroacetic acid,
chlorodibromoacetic acid, tribromoacetic acid,
•	ICR - Information Collection Request
•	IC-ESI-MS/MS - Ion Chromatography Electrospray Ionization
Tandem Mass Spectrometry
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The Fourth Unregulated Contaminant Monitoring Rule (UCMR 4) Implementation Webinar Presentation
Abbreviations and Acronyms
•	IDC - Initial Demonstration of Capability
•	IS - Internal Standard
•	LC/ESI-MS/MS - Liquid Chromatography/Electrospray
lonization/Tandem Mass Spectroscopy
•	LC-MS/MS - Liquid Chromatography/Tandem Mass
Spectrometry
•	LFB - Laboratory Fortified Blank
•	LFSM - Laboratory Fortified Sample Matrix
•	LRB - Laboratory Reagent Blank
•	LSI - Large System Inventory
•	LT2 - Long Term 2 Enhanced Surface Water Treatment Rule
April 2017	U.S. Environmental Protection Agency	145
Abbreviations and Acronyms
•	MCLG - Maximum Contaminant Level Goal
•	MRL - Minimum Reporting Level
•	MRS - Monitoring Review Sheet
•	NCOD - National Contaminant Occurrence Database
•	NPDWRs - National Primary Drinking Water Regulations
•	NTNCWS - Non-transient Non-community Water System
•	PA - Partnership Agreement
•	PT - Proficiency Testing
•	PWS - Public Water System
•	PWSID - Public Water System Identification
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The Fourth Unregulated Contaminant Monitoring Rule (UCMR 4) Implementation Webinar Presentation
Abbreviations and Acronyms
•	QA - Quality Assurance
•	QC - Quality Control
•	QCS - Quality Control Sample
•	QHS - Quality HAA Sample
•	SDWA - Safe Drinking Water Act
•	SM - Standard Methods for the Examination of Water and
Wastewater
•	SMP - State Monitoring Plan
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Abbreviations and Acronyms
•	SPE - Solid Phase Extraction Phase
•	SR - Source water
•	SSI - Small System Inventory
•	SUR - Surrogate Standard
•	SW - Surface Water
•	TNCWS - Transient Non-community Water System
•	TTHM - Trihalomethanes
•	TOC - Total Organic Carbon
•	UCMR - Unregulated Contaminant Monitoring Rule
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