A EPA
United States
Environmental Protection
Agency
The Fifth Unregulated Contaminant
Monitoring Rule (UCMR 5):
Large Public Water Systems Implementation
Held October 26 and 27, 2022
USEPA, Office of Ground Water and Drinking Water
Office of Water (MLK 140)
EPA 815-A-22-005
November 2022
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5):
Large Public Water Systems Implementation
Public Meeting by Webinar
October 26, 2022
October 27, 2022 - repeated
Office of Ground Water and Dunking Water, Standards and Risk Management Division,
Unies'iilated Contaminant Monitoring Branch
v>EPA
United States
Environmental Protection
Agency
Office of Water
Welcome
Melissa Simic, U.S. EPA
Office of Ground Water and Drinking Water
Standards and Risk Management Division
Unregulated Contaminant Monitoring Branch
vปEPA
United States
Environmental Protection
Agency
Office of Water
Page 1 of 75
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
Agenda (Eastern Time)
October 26
October 27
Topics
12:45-l:00pm
8:45 9:00am
Log in to the Meeting
l:00-l:05pm
9:00 9:05am
Welcome, Logistics, Agenda
l:05-l:25pm
9:05 9:25am
Overview of the UCMR Program
l:25-2:05pm
9:25 10:05am
Overview of UCMR 5
2:05-2:30pm
10:05 10:30am
UCMR 5 Contaminants, Analytical Methods, and Public Access to UCMR Data
2:30-2:45pm
10:30 10:45am
Break
2:45-2:50pm
10:45 10:50am
Q&A Received Via Chat Box
2:50-3:05pm
10:50 11:05am
Representative Samples
3:05-3:35pm
11:05 11:35am
SDWARS and UCMR 5 Reporting Requirements
3:35 3:50pm
11:35 11:50am
EPA Approval of Laboratories to Support UCMR 5
3:50-4:00pm
ll:50-12:00pm
Q&A Received Via Chat Box
vvEPA
United States
Environmental Protection
Agency
Office of Water
Slide 3 of 145
WebinarTips
Webinar Slides
Located under "Handouts" in the right navigation bar on your screen
Slides were also emailed to all registered participants
Slides contain all content that will be discussed
Webinar Audio
Webinar lines are muted to minimize background noise (listen-only mode)
Webinar Support
Send email to UCMRWebinar@cadmusgroup.com
e.g., "I can hear you speaking, but I cannot see the slides."
A United States Office of Water
Environmental Protection
Agency slide4of 145
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
Questions on the Presentation
Click on "?" in the upper part of the control
panel (Figure 1) to submit
questions/comments
Type a question in the box; click send (Figure 2)
Submit general clarifying questions
throughout the webinar
Questions will be answered in the question box
throughout the presentation
Common questions will be answered after the
break and at the end
pM United States
Environmental Protection
mI Agency
PWS-Specific Questions about UCMR 5
If you have detailed questions that apply to your PWS specifically,
please email the appropriate inbox below
UCMR5@glec.com
Schedule, sampling locations, applicability (e.g., PWS merged with
another PWS(s), size category has changed, source water has changed),
seasonal sample points
UCMR_Sampling_Coordinator@epa.gov
Schedule and sampling location changes (post-2022), representative
monitoring
United States
Environmental Protection
Agency
Figure 1
Figure 2
<9
1
Want answers? .s
*
1 0
Ask the staff a question
ฆ 1 **
Send
Office of Water
Slide 5 of 145
Office of Water
Slide 6 of 145
Page 3 of 75
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
General Meeting Information
Purpose
Provide large public water systems (PWSs) (i.e., those serving more than 10,000
people) with the UCMR 5 requirements and the actions they must take to properly
prepare for monitoring
Sampling schedules and locations
Contaminants, methods, and public access to UCMR data
Safe Drinking Water Accession and Review System (SDWARS)
Laboratory approval program
UCMR 5 small PWS sampling kit instructions and tips (Appendix 1)
Q&A at the end of the webinar via the chat
vvEPA
United States
Environmental Protection
Agency
Office of Water
Overview of the Unregulated Contaminant
Monitoring Rule Program
Kelsey Dailey, U.S. EPA
Office of Ground Water and Drinking Water
Standards and Risk Management Division
Unregulated Contaminant Monitoring Branch
*>EPA
United States
Environmental Protection
Agency
Office of Water
Page 4 of 75
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
Overview
Regulatory background for UCMR, relationship to other Safe
Drinking Water Act (SDWA) programs
Contaminant Candidate List (CCL)
The Unregulated Contaminant Monitoring Rule (UCMR)
UCMR objective
History of UCMR
Regulatory Determinations
National Primary Drinking Water Regulations (NPDWRs)
Six-Year Review
pM United States
Environmental Protection
mI Agency
The Safe Drinking Water Act (SDWA)
Enacted in 1974, SDWA authorized the Environmental Protection Agency (EPA) to set
enforceable health standards for contaminants in drinking water
National Primary Drinking Water Regulations (NPDWRs)
The 1986 SDWA amendments were the basis for the original "UCM" program
State drinking water programs managed the original UCM program
Public water systems (PWSs) serving >500 people were required to monitor
The 1996 SDWA amendments changed the process of developing and reviewing NPDWRs
CCL
UCMR (EPA-managed implementation)
Regulatory Determination
Six-Year Review
JL United States
Environmental Protection
IhI Agency
Office of Water
Slide 9 of 145
Office of Water
Slide 10 of 145
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
General Flow of SDWA Regulatory Processes
Regulatory
Determination
Preliminary Regulatory
Determinations
Rule
ijjl Public Review and Comment
Research Needs Assessment
Review
"Bfc"
Final Regulatory
Determinations
Proposed Rule
(NPDWR)
UCMR Monitoring
Results
UCMR
No further action required if decision is
to not regulate
May develop health advisory
Bk
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
Page 6 of 75
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
General Flow of SDWA Regulatory Processes
CCL
Regulatory
Determination
Preliminary Regulatory
Determinations
t
Final Regulatory
Determinations
No further action required if decision is
to not regulate
May develop health advisory
Rule
Public Review and Comment
Research Needs Assessment
Review
Proposed Rule
t
(NPDWR)
l
i
1 IS
V months
8k
Final Rule
Six Year Review of
(NPDWR)
Existing NPDWRs
increased specificity and confidence in the type of supporting data used (e.g., health, occurrence, treatment) is needed at each stage
vvEPA
United States
Environmental Protection
Agency
Office of Water
The Unregulated Contaminant Monitoring Rule (UCMR)
1 SDWA Section 1445(a)(2), as amended in 1996, established requirements for
the UCMR Program:
Issue a list of no more than 30 priority unregulated contaminants in drinking water,
once every 5 years
Require PWSs serving a population >10,000 people as well as a nationally
representative sample of small PWSs serving <10,000 people to monitor
Make analytical results publicly available in the National Contaminant Occurrence
Database (NCOD) for drinking water
EPA funds shipping and analytical costs for small PWSs
1 EPA manages the program in partnership with States, Tribes, and Territories
(hereafter referred to as "States") that volunteer to assist
*>EPA
United States
Environmental Protection
Agency
Office of Water
Page 7 of 75
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
Objective of the UCMR Program
Collect nationally representative occurrence data for unregulated
contaminants that may warrant regulation under 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 publicly available:
https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule
jy United States
Environmental Protection
M ปAgency
History of UCMR
UCMR 1(2001-2005)
Published in Federal Register (FR) on September 17, 1999
UCMR 2 (2007-2011)
Published in FR on January 4, 2007
UCMR 3 (2012-2016)
Published in FR on April 16, 2012
UCMR 4 (2017-2021)
Published in FR on December 20, 2016
PWSs collected samples 2018-2020
UCMR 5 (2022-2026)
Published on December 27, 2021 (86 Fl
PWSs will collect samples 2023-2025
Each new UCMR cycle is established via a revision to the rule
for the ongoing/preceding cycle
United States
Environmental Protection
M % Agency
Office of Water
Slide 15 of 145
Federal Register /Vol. 86. No. 245 /Monday. December 27. 2011 / Rules and Reguiatio
R 73131)
\ mv. Fital u-a-jl; KซS am!
40CFR Part 141
[EPA-HQ-OW-2020-0510: FBL-6791-03-
Revislons to the Unregulated
Contaminant Monitoring Rule (UCMR
5) tor Public Water Systems and
Announcement ot Public Meetings
agency: Environmental Protection
. > ni
ACTION: final rule and notlcoof public
m outings.
available electronically through httpf-J/
wmr.regulaliotts.gor.
FOR FURTHER INFORMATION CONTACT:
Bronda D. Bow don. Standards and Risk
Management Dtvtiion (SRMD), Office o(
Ground Water and Drinking Water
(OGWDW) (MS 1401, Environmental
Protection Agency. 26 West Martin
Lutha King Drive. Cincinnati. Ohio
45268: telephone number 1513) 5611-
7961: email address: howden brnndins
epu.gov. ot Melissa Stale. SRMD.
OCWDW (MS 140). Envlrtmmontal
Protection Agency. 2G West Martin
Luther King Drive. Cincinnati. Ohio
45268; telephone number: 1513) 560-
7864: email address: simic.molissaH
epa.gov For general Information, visit
the Ground Water and Drinking Water
wob page at: httpsj/n-ww.opa.gov/
grouna-nvlet-and-driii king-water.
it 1.2.3-TrtcMcrcprofwno
B. Whal In the UCMR 5 umpllnc iIihIko?
1. Thlป Final Rulo
2. Summary of and EPA
C. What 16 the sampling frequency and
liming.'
1. This Final Rulo
2. Summary of Mซtur Comments and EHA
vrhil i> ropnwnlnlivn monitoring?
anal Rulo
i.irv ฆ"f M^wir C-imm-'nln anil 1.1'A
Office of Water
Slide 16 of 145
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
General Flow of SDWA Regulatory Processes
CCL
UCMR Monitoring
Results
UCMR
^ Public Review and Comment
ResearchNeeds Assessm ent
Rule
Review
~
f
Proposed Rule
(NPDWR)
1
1
1 IS
V months
Sk
Final Rule
Six Year Review of
(NPDWR)
Existing NPDWRs
increased specificity and confidence in the type of supporting data used (e.g., health, occurrence, treatment) is needed at each stage
vvEPA
United States
Environmental Protection
Agency
Office of Water
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 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 a substantial likelihood that the
contaminant will occur in PWSs 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 PWSs
' -SDWA Section 1412(b)(1)
*>EPA
United States
Environmental Protection
Agency
Office of Water
Page 9 of 75
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
General Flow of SDWA Regulatory Processes
CCL
\
SI
Psj |
3S
i
E
UCMR Monitoring
Results
UCMR
t
Regulatory
Determination
Preliminary Regulatory
Determinations
j| Public Review and Comment
1 Research Needs Assessment
-Jrmr-
Final Regulatory
Determinations
No further action required if decision is
to not regulate
May develop health advisory
Rule
Proposed Rule
(NPDWR)
Review
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
vvEPA
United States
Environmental Protection
Agency
Office of Water
National Primary Drinking Water Regulations (NPDWRs)
For each contaminant that the Administrator determines to regulate, the Administrator
shall publish MCLGs and promulgate, by rule, NPDWRs. The Administrator shall:
Propose the MCLG and NPDWR for a contaminant no later than 24 months after the
determination to regulate
Publish an MCLG and promulgate an NPDWR within 18 months after the proposal thereof
An NPDWR shall take effect three years after the date on which the regulation is
promulgated. The Administrator, or a State, may allow this period to be extended up to
two additional years if it determines that additional time is necessary for capital
improvements
*>EPA
United States
Environmental Protection
Agency
Office of Water
Page 10 of 75
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
General Flow of SDWA Regulatory Processes
f
CCL
UCMR Monitoring
Results
UCMR
Public Review and Comment
Research Needs Assessment
Review
May develop health advisory
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
vvEPA
United States
Environmental Protection
Agency
Office of Water
Six-Year Review
' SDWA Section 1412(b)(9) requires review and revision, as appropriate, of
each NPDWR no less often than every six years. The review includes:
Re-evaluation of health effects, occurrence, exposure, analytical methods,
treatment feasibility, risk-balancing, and implementation issues
' Any revision of an NPDWR shall maintain, or provide for greater,
protection of the health of people
*>EPA
United States
Environmental Protection
Agency
Office of Water
Page 11 of 75
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
Overview of UCMR 5
Brenda Bowden, U.S. EPA
Office of Ground Water and Drinking Water
Standards and Risk Management Division
Unregulated Contaminant Monitoring Branch
pM United States
Environmental Protection
mI Agency
Overview
America's Water Infrastructure Act (AWIA)
National Defense Authorization Act (NDAA)
Sampling and statistical design
PWS types
UCMR monitoring tiers
Notifications
Sampling schedules
Sampling frequency and locations
Timeline of activities
Implementation roles
JL United States
Environmental Protection
IhI Agency
Office of Water
Slide 23 of 145
Office of Water
Slide 24 of 145
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
America's Water Infrastructure Act (AWIA) of 2018
SDWA was amended in 2018 by Public Law 115-270
AWIA Section 2021, enacted October 23, 2018
Key changes to UCMR (SDWA Section 1445(j)):
Require PWSs serving 3,300 to 10,000 people to monitor
Ensure that only a representative sample of PWSs serving <3,300 people monitor
Limitations:
Subject to the availability of appropriations and sufficient laboratory capacity
Under the AWIA provisions, EPA continues to be responsible for all sample shipping
and analytical costs associated with monitoring at PWSs serving <10,000 people
oEPA
U n ited States Office of Water
Environmental Protection
Agency slide 25 of 145
National Defense Authorization Act (NDAA)
for Fiscal Year 2020
Section 7311 of the NDAA (Public Law 116-92) requires EPA to include all
per- and polyfluoroalkyl substances (PFAS) in UCMR 5 for which a drinking
water method has been validated by the Administrator and that are not
subject to an NPDWR
*>EPA
United States
Environmental Protection
Agency
Office of Water
Page 13 of 75
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
Sampling and Statistical Design
Sampling design has been vetted with stakeholders and peer-reviewed
ฆ Data Quality Objectives for the representative sample of PWSs
Provides occurrence data for unbiased national exposure estimates
The statistical design:
Stratifies by PWS size and source water type
Allocates PWSs across the strata proportional to population served with at
least two PWSs allocated to each State
vvEPA
United States
Environmental Protection
Agency
Office of Water
Selection of Nationally Representative PWSs
The document "Selection of Nationally Representative Public Water Systems for the
Unregulated Contaminant Monitoring Rule: 2021 Update" is available in the docket at:
https://www.regulations.gov/document/EPA-HQ-OW-2020-0530-Q127
Updates the 2001 statistical design document
Describes:
Refinement to the UCMR program monitoring tiers
Selection of representative PWSs for Assessment Monitoring and Screening Survey Monitoring
Changes in statistical design to address the AWIA requirements
Development of State Monitoring Plans that identify specific PWSs participating in UCMR and
establish sampling schedules
*>EPA
United States
Environmental Protection
Agency
Office of Water
Page 14 of 75
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
PWS Types
Public Water System (PWS): provides water for human consumption through
pipes or other constructed conveyances to at least 15 service connections or
serves an average of at least 25 people for at least 60 days a year
Community Water System (CWS): PWS that supplies water to the same population
year-round
Non-Transient Non-Community Water System (NTNCWS): PWS that supplies water
to at least 25 of the same people at least six months per year but not year-round
(e.g., schools)
Transient Non-Community Water System (TNCWS) (not generally included in UCMR
sampling and not included in UCMR 5): PWS that provides water where people do
not remain for long periods of time (e.g., gas stations, campgrounds)
pM United States
Environmental Protection
mI Agency
UCMR Monitoring Tiers
UCMR approach relies on using one or more of 3 monitoring tiers:
Assessment Monitoring (primary approach to-date)
Screening Survey
Pre-Screen Testing
Based on:
Availability and complexity of analytical methods
Laboratory capacity
Sampling frequency
Characteristics of PWSs performing the monitoring
Other considerations (e.g., cost/burden)
Assessment Monitoring is the only tier under UCMR 5
JL United States
Environmental Protection
IhI Agency
Office of Water
Slide 29 of 145
Office of Water
Slide 30 of 145
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
Assessment Monitoring
Primary objective is to determine national contaminant occurrence in PWS-supplied drinking
water for the purpose of estimating national population exposure
Primary tier and largest in scope
Generally relies on analytical methods that use more common techniques and are expected to
be widely available
Consistent with the AWIA provisions, monitoring for UCMR 5 includes:
Small
Nationally representative sample of 800 systems serving <3,300 people
Census of systems serving 3,300 to 10,000 people, if they are notified and confirmed by EPA
Large
Census of systems serving >10,000 people
Sampling design is population weighted
Total number of systems: ~10,300
vvEPA
United States
Environmental Protection
Agency
Office of Water
PWSs Expected to Participate in UCMR 5 Monitoring
System Size Category
(Number of people served)
Small Systems1
(fewer than 3,300)
Small Systems1
(3,300 - 10,000)
Large Systems
(10,001 and over)
TOTAL
Monitoring Design
(CWSs and NTNCWSs)2
Nationally representative sample
All systems, if confirmed by EPA
Total Number of Systems per
Size Category
800
All systems
5,1473
4,364s
10,311
1 This requirement is based on the availability of appropriations and sufficient laboratory capacity. As EPA obtains appropriations, PWSs will be notified.
2 Community Water Systems (CWSs), Non-Transient Non-Community Water Systems (NTNCWSs)
3 Counts are approximate
*>EPA
United States
Environmental Protection
Agency
Office of Water
Page 16 of 75
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
Frequently Asked Question
How does EPA determine if a PWS monitors under UCMR 5?
The determination of whether a PWS is required to monitor under
this rule is based on the type of system (e.g., community water
system, non-transient non-community water system, etc.), and its
retail population, as indicated by SDWIS/Fed on February 1, 2021, or
subsequent corrections from the State.
pM United States
Environmental Protection
mI Agency
Frequently Asked Question
I purchase 100% of my water, am I subject to UCMR 5?
Yes. Purchasing 100% of your water that is supplied to customers does not
exclude a PWS from UCMR 5. 40 CFR 141.40(a)(2) specifies UCMR 5 applicability.
PWSs that purchase any of their water supply (i.e., 0-100%) and serve more than
10,000 people are required to monitor. Systems that serve 3,300 to 10,000
people are required to monitor if appropriations are provided to EPA. Systems
that have a retail population of <3,300 are only required to monitor if they are
selected as part of the nationally representative sample and notified by EPA.
JL United States
Environmental Protection
IhI Agency
Office of Water
Slide 33 of 145
Office of Water
Slide 34 of 145
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
PWS Notifications
Notifications were sent to ALL PWSs subject to UCMR 5 (~10,300)
Notifications informed PWSs of their UCMR requirements and included:
Instructions on how to access EPA's web-based data reporting system, the Safe Drinking Water
Accession and Review System 5 (SDWARS 5)
Actions that ALL PWSs must take in SDWARS 5 to prepare for their monitoring
Most PWSs received their notification through email from UCMR@epacdx.net during the week of
January 18, 2022. Please check your junk/spam folders. Emails were sent to multiple contacts at each
PWS, if available.
PWSs without a valid email address were physically mailed a notification the week of February 22,
2022. The letter was addressed to the PWS, not a specific person.
PWSs not yet registered for a SDWARS account were sent a reminder email(s) or physical notification
the week of August 22, 2022
If you have not received your notification, please contact EPA's contractor Great Lakes Environmental
Center, Inc. (GLEC) at the UCMR Message Center at UCMR5@glec.com or 1-800-949-1581
v>EPA
United States
Environmental Protection
Agency
Office of Water
Frequently Asked Question
What does the notification
email look like?
vปEPA
United States
Environmental Protection
Agency
Sent: Sunday, January 23,2022 10:57 AM
Subject: RE: Medium PWS Registration for U.S. EPA's Fifth Unregulated Contaminant Monitoring
Rule
RE: Medium PWS Registration for U.S. EPA's Fifth Unregulated Contaminant Monitoring
Rule
Dear Public Water System:
Our records indicate that your public water system (PWS) is subject to the requirements of the
next Unregulated Contaminants Monitoring Rule (UCMR 5). published on December 27.
2021 (86 FR 73131). UCMR 5 requires certain PWSs to collect drinking water samples for 29
per- and polyfluoroalkvl substances (PFAS) and lithium analysis during a 12-month period
between 2023 and 2025. This notification provides you with information to access the UCMR
5 internet-based reporting system, the Safe Drinking Water Accession and Review System
(SDWARS 5). so that your account will be ready to support your pre-sampling and monitoring
responsibilities.
The Safe Drinking Water Act (SDWA) requires the U.S. Environmental Protection Agency
(EPA) to establish criteria for a program to monitor unregulated contaminants in drinking
water and to identify contaminants to be monitored every five years. The UCMR dataset is one
Office of Water
Page 18 of 75
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
Sampling Schedules
EPA developed schedules for all PWSs
Partnering States had opportunity to review and modify schedules for
PWSs during review of State Monitoring Plan
Large PWSs have opportunity to review and modify their schedule in
SDWARS 5 through December 31, 2022
Starting in 2023, large PWSs must contact EPA at
UCMR_Sampling_Coordinator@epa.gov to request schedule changes
Provide a reason for the request and your PWSID
United States Office of Water
Environmental Protection
Agency slide37of 145
Sampling Frequency and Locations
PWSs will be required to collect samples based on the traditional UCMR sampling
frequency and timeframe
UCMR 5 samples will be collected at non-emergency entry points to the distribution
system (EP or EPTDS) for all contaminants (finished water)
Water Source
Timeframe
Frequency
Surface water, ground water under the direct
influence of surface water, or mixed sources systems
Year-Round
Systems must monitor 4 times during a consecutive
12-month monitoring period.
Sample events must occur 3 months apart.
Ground water systems
Systems must monitor 2 times during a consecutive
Year Round 12 month monitoring period.
Sample events must occur 5 7 months apart.
United States
Environmental Protection
^#^1 M ปAgency
Office of Water
Slide 38 of 145
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
Frequently Asked Question
I receive water from another water system via a consecutive
connection. Where should I take my entry point to the distribution
system (EPTDS) sample?
EPA advises samplers to collect from the closest location to the EPTDS that can be
readily, safely, and consistently accessed. The PWSs should contact the UCMR Message
Center (UCMR5@glec.com) with additional questions/concerns.
vvEPA
U n ited States Office of Water
Environmental Protection
Agency slide 39 of 145
Timeline of Activities
The UCMR 5 Proposed Rule was published March 11, 2021 (86 FR 13846)
and the Final Rule was published December 27, 2021 (86 FR 73131)
2022
2023
2024
2025
2026
Pre-sampling Activities by EPA,
States
Pre-sampling Activities by PWSs
PWSs register for a SDWARS account
to provide contact information,
sampling location inventory, and Zip
Code(s)
Sampling Period
EPA, State Implementation Activities
PWS Sample Collection,
Laboratory Analysis,
Reporting
(Approximately 1/3 of PWSs in each year)
Post-sampling Activities by PWSs,
Laboratories
PWSs complete resampling, as
needed
Laboratories conclude data
reporting
Post-sampling Activities by EPA
Complete upload of UCMR 5 data
to NCOD
vvEPA
U nited States ฐffice ฐf Water
Environmental Protection
Agency slide 40 of 145
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
EPA Implementation Roles
Large and Small PWS support:
Extract data from SDWARS to review for completeness and reporting to NCOD
Support the SDWARS reporting system and users
Update PWS inventory and schedules as needed
Provide technical assistance
Use SDWARS for real-time communication and outreach
State, PWS, and Laboratory support:
Review and track rule applicability and PWS sampling progress
Coordinate Laboratory Approval Program
Provide technical support
Coordinate outreach
Lead compliance assistance
pM United States
Environmental Protection
mI Agency
Extended UCMR Implementation Team
EPA Office of Ground Water and Drinking Water (OGWDW)
Lead organization for direct-implementation of rule
EPA Regional Offices
Coordinate State Partnership Agreements
Assist States and PWSs with UCMR requirements, compliance assistance,
and enforcement
Partnering States
Support various aspects of implementation based on State-specific interest
JL United States
Environmental Protection
IhI Agency
Office of Water
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Office of Water
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
States' Role in the UCMR Program
Participation by States is voluntary and documented via Partnership Agreements
States help EPA implement the UCMR program and ensure high data quality
Partnership Agreement activities can include any or all of the following:
Review and revise State Monitoring Plans
Provide inventory and contact information for small and large PWSs
Review proposed Ground Water Representative Monitoring Plans (GWRMPs)
Provide compliance assistance (e.g., notify and instruct systems)
Collect samples
Other
UCMR 5 is the highest "partnered" cycle. Thank you for the large amount of State-provided data.
pM United States
Environmental Protection
mI Agency
Large PWS Responsibilities
PWSs serving >10,000 people are responsible for the costs associated with analyses
PWS coordinates sample shipping and analyses with an EPA-approved UCMR 5
laboratory
A list of approved laboratories is available at: https://www.epa.gov/dwucmr/list-
laboratories-approved-epa-fifth-unregulated-contaminant-monitoring-rule-ucmr-5
PWS reviews and approves the data within 30 days of the laboratory posting data
Laboratories must post data to SDWARS within 90 days of sample collection
If the PWS has not acted upon the data after 30 days, the data are considered
approved and ready for State and EPA review
JL United States
Environmental Protection
IhI Agency
Office of Water
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Office of Water
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
UCMR 5 Contaminants, Analytical Methods,
and Public Access to UCMR Data
Elizabeth Hedrick, U.S. EPA
Office of Ground Water and Drinking Water
Standards and Risk Management Division
Unregulated Contaminant Monitoring Branch
pM United States
Environmental Protection
mI Agency
Overview
Contaminant Selection
"Information Compendium for Contaminants for the Final Unregulated Contaminant
Monitoring Rule (UCMR 5)"
UCMR 5 Contaminants
Analytical methods
Minimum reporting levels (MRLs)
Health information
National Contaminant Occurrence Database (NCOD) and Data Summary
Consumer Confidence Reports (CCRs)
Public Notification Requirements
JL United States
Environmental Protection
IhI Agency
Office of Water
Slide 45 of 145
Office of Water
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
Information Compendium for Contaminants
Published December 2021 (EPA 815-B-21-009)
Provided supporting information for the 30 UCMR 5 contaminants
Used data sources from the Contaminant Candidate List (CCL) program to inform
Background and Use
Health Effects
Occurrence in Water
Production, Release, and Usage
Persistence and Mobility
Outlined the contaminant prioritization process
Summarized the data sources reviewed
Included a comprehensive list of the other contaminants that were considered
The document "Information Compendium for Contaminants for the Final Unregulated
Contaminant Monitoring Rule (UCMR 5)" is available in the docket at:
https://www.reeulations.eov/document/EPA-HQ-OW-2020-0530-0126
oEPA
U n ited States Office of Water
Environmental Protection
Agency slide 47 of 145
UCMR 5 Contaminants: 29 PFAS + Lithium
EPA Method 533 (PFAS monitored under UCMR 3 are in bold)
1H, 1H, 2H, 2H-perfluorodecane sulfonic acid
(8:2 FTS)
9-chlorohexa decaf luoro-3-oxanone-l -sulfonic
acid (9CI-PF30NS)
4,8-dioxa-3H-perfluorononanoic acid
(ADONA)
Perfluorohexanoic acid (PFHxA)
1H, 1H, 2H, 2H-perfluorohexane sulfonic acid
(4:2 FTS)
Perfluorobutanoic acid (PFBA)
Hexafluoropropylene oxide dimer acid
(HFPO-DA) ("GenXchemical")
Perfluorohexanesulfonic acid (PFHxS)
1H, 1H, 2H, 2H-perfluorooctane sulfonic acid
(6:2 FTS)
Perfiuoroheptanesulfonic acid (PFHpS)
Perfluorobutanesulfonic acid (PFBS)
Perfluorononanoic acid (PFNA)
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)
Perfiuoropentanesulfonic acid (PFPeS)
Perfluorodecanoic acid (PFDA)
Perfluorooctanesulfonic acid (PFOS)
Perfluoro (2-ethoxyethane) sulfonic acid
(PFEESA)
Perfiuoropentanoic acid (PFPeA)
Perfluorododecanoic acid (PFDoA)
Perfluorooctanoic acid (PFOA)
Perfluoro-3-methoxypropanoic acid (PFMPA)
ll-chloroeicosafluoro-3-oxaundecane-l-
sulfonic acid (HCl-PF30UdS)
Perfluoroheptanoic acid (PFHpA)
Perfluoroundecanoic acid (PFUnA)
| Perfluoro-4-methoxybutanoic acid (PFMBA) 1
PFAS Analytes Unique to EPA Method 537.1
IN-ethyl perfluorooctanesulfonamidoacetic N-methyl perfluorooctanesulfonamidoacetic _ ^ ^ ^
. ฆPerf uorotetradecanoic acid (PFTA) Perf uorotridecanoic acid (PFTrDA)
acid (NEtFOSAA) acid (NMeFOSAA) v ' v '
EPA Method 200.7 or Alternate SM 3120 B or ASTM D1976 20
Lithium
United States
Office of Water
Environmental Protection
Agency
Slide 48 of 145
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
Per- and Polyfluoroalkyl Substances (PFAS)
EPA Method 5331 (SPE LC/MS/MS)
Location: EPTDS2
Analyte CASRN3 MRL4
Health Information
ll-chloroeicosafluoro-3-oxaundecane-l-sulfonic acid (HCl-PF30UdS) 763051-92-9 0.005 H-g/L
No EPA health assessment
1H,1H, 2H, 2H-perf 1 uorodecane sulfonic acid (8:2 FTS) 39108-34-4 0.005 M-g/L
No EPA health assessment
1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS) 757124-72-4 0.003 M-g/L
No EPA health assessment
1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS) 27619-97-2 0.005 M-g/L
No EPA health assessment
4,8-dioxa-3H-perfluorononanoic acid (ADONA)5 919005-14-4 0.003 H-g/L
No EPA health assessment
1 Determination of PFAS in Drinking Water by Isotope Dilution Anion Exchange Solid Phase Extraction and Liquid Chromatography/Tandem Mass Spectrometry, November 2019
2 Entry Point to the Distribution System
3 Chemical Abstracts Service Registry Number
4 Minimum Reporting Level
s4,8-dioxa-3H-perfluorononanoic acid is the parent acid form of the ammonium salt
United States
Environmental Protection
hI Agency
Office of Water
Slide 49 of 145
Per- and Polyfluoroalkyl Substances (PFAS)
EPA Method 533 (SPE LC/MS/MS)
Location: EPTDS
Analyte CASRN
MRL Health Information
9-chlorohexadecafluoro-3-oxanone-l-sulfonic acid (9CI-PF30NS) 756426-58-1
0.002 |ig/L No EPA health assessment
hexafluoropropylene oxide dimer acid (HFPO-DA)
, . i ป 13252-13-6
(GenX chemicals)
EPA Lifetime Health Advisory (final)1: 0.01 H-g/L
0.005 |ig/L EPA Toxicity Value2: Chronic Reference Dose (RfD) =
0.000003 mg/kg-day
nonafluoro-3,6-dioxaheptanoic acid (NFDHA) 151772-58-6
0.02 |ig/L No EPA health assessment
perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) 113507-82-7
0.003 |ig/L No EPA health assessment
1 Drinking Water Health Advisory: Hexafluoropropylene Oxide (HFPO) Dimer Acid and HFPO Dimer Acid Ammonium Salt, Also Known as "GenX Chemicals", June 2022
2 Final Human Health Toxicity Values for Hexafluoropropvlene Oxide (HFPO) Dimer Acid and Its Ammonium Salt, Also Known As "GenX Chemicals". 2021
JL United States
Environmental Protection
M m Agency
Office of Water
Slide 50 of 145
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
Per- and Polyfluoroalkyl Substances (PFAS)
EPA Method 533 (SPE LC/MS/MS)
Location: EPTDS
Analyte
CASRN
MRL Health Information
perfluoro-3-methoxypropanoic acid (PFMPA)
377-73-1
0.004 |ig/L No EPA health assessment
perfluoro-4-methoxybutanoic acid (PFMBA)
863090-89-5
0.003 |ig/L No EPA health assessment
perfluorobutanesulfonic acid (PFBS)
375-73-5
0 003 /L EPA Lifetime Health Advisory (final)1: 2 |ig/L
^ EPA Toxicity Value2: Chronic RfD = 0.0003 mg/kg-day (thyroid)
perfluorobutanoic acid (PFBA)
375-22-4
EPA Integrated Risk Information System (IRIS) assessment in
0.005 M-g/L 5 3
process3
1 Drinking Water Health Advisorv: Perfluorobutane Sulfonic Acid and Related Compound Potassium Perfluorobutane Sulfonate. June 2022
2 Human Health Toxicitv Values for Perfluorobutane Sulfonic Acid and Related Compound Potassium Perfluorobutane Sulfonate. October 2021
3PFBA IRIS assessment in process
ฃUnited States
Environmental Protection
hI Agency
Office of Water
Slide 51 of 145
Per- and Polyfluoroalkyl Substances (PFAS)
EPA Method 533 (SPE LC/MS/MS)
Location: EPTDS
Analyte
CASRN
MRL Health Information
perfluorodecanoic acid (PFDA)
335-76-2
0.003 |ig/L EPA IRIS assessment in process1
perfluorododecanoic acid (PFDoA)
307-55-1
0.003 |ig/L No EPA health assessment
perfluoroheptanesulfonic acid (PFHpS)
375-92-8
0.003 |ig/L No EPA health assessment
perfluoroheptanoic acid (PFHpA)
375-85-9
0.003 |ig/L No EPA health assessment
ATSDR2: Minimal Risk Level = 0.00002 mg/kg-day
perfluorohexanesulfonic acid (PFHxS)
355-46-4
(intermediate duration); drinking water concentrations = 0.517
0.003 fig/L M-g/L (adult) and 0.140 |ig/L (child)
EPA IRIS assessment in process3
1 PFDA IRIS assessment in process
2 Agency for Toxic Substances and Disease Registry (ATSDR), 2021:
"Toxicological Profile for Perfluoroalkyls" 1
3 PFHxS IRIS assessment in process
JL United States
Environmental Protection
kl Agency
Office of Water
Slide 52 of 145
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
Per- and Polyfluoroalkyl Substances (PFAS)
EPA Method 533 (SPE LC/MS/MS)
Location: EPTDS
Analyte
CASRN
MRL
Health Information
perfluorohexanoic acid (PFHxA)
307-24-4
0.003 jj-g/L
EPA IRIS assessment in process1
perfluorononanoic acid (PFNA)
375-95-1
ATSDR2: Minimal Risk Level = 0.000003 mg/kg-day
(intermediate duration); drinking water concentrations =
0.004 M-g/L 0.078 H-g/L (adult) and 0.021 |ig/L (child)
EPA IRIS assessment in process3
perfluoropentanesulfonic acid (PFPeS)
2706-91-4
0.004 jj-g/L
No EPA health assessment
perfluoropentanoic acid (PFPeA)
2706-90-3
0.003 jj-g/L
No EPA health assessment
perfluoroundecanoic acid (PFUnA)
2058-94-8
0.002 Mg/L
No EPA health assessment
1 PFHxA IRIS assessment in process
2 Agency for Toxic Substances and Disease Registry (ATSDR), 2021: "Toxicological Profile for Perfluoroalkyls"
3 PFNA IRIS assessment in process
United States
Environmental Protection
hI Agency
Office of Water
Slide 53 of 145
Per- and Polyfluoroalkyl Substances (PFAS)
EPA Method 533 (SPE LC/MS/MS)
Location: EPTDS
Analyte
CASRN
MRL
Health Information
perfluorooctanesulfonic acid (PFOS)
EPA Lifetime Health Advisory (interim)1: 0.00002 |ig/L
Draft Chronic RfD = 7.9 x 10~9 mg/kg-day
0.004 |ig/L Health Canada2: MAC = 0.6 ug/L
ATSDR3: Minimal Risk Level = 0.000002 mg/kg-day (intermediate duration);
drinking water concentrations = 0.052 |ig/L (adult) and 0.014 H-g/L (child)
perfluorooctanoic acid (PFOA)
EPA Lifetime Health Advisory (interim)4: 0.000004 |ig/L
Draft Chronic RfD = 1.5 x 10~9 mg/kg-day
0.004 ng/L Health Canada2: MAC = 0.2 ug/L
ATSDR3: Minimal Risk Level = 0.000003 mg/kg-day (intermediate duration);
drinking water concentrations = 0.078 |ig/L (adult) and 0.021 |ig/L (child)
1 INTERIM Drinking Water Health Advisory: Perfluorooctane Sulfonic Acid (PFOS). June 2022; not federally enforceable; RfD subject to change based on current EPA reevaluation of toxicity information for PFOS
2 Health Canada Guidelines for Canadian Drinking Water Quality, 2018, Maximum Acceptable Concentration (MAC); not federally enforceable
3 Agency for Toxic Substances and Disease Registry (ATSDR), 2021: "Toxicological Profile for Perfluoroalkyls"
4 INTERIM Drinking Water Health Advisory: Perfluorooctanoic Acid (PFOA). June 2022; not federally enforceable; RfD subject to change based on current EPA reevaluation of toxicity information for PFOA
*>EPA
United States
Environmental Protection
Agency
Office of Water
Slide 54 of 145
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
Per- and Polyfluoroalkyl Substances (PFAS)
Using EPA Method 537.11 (LC/MS/MS)
Location: EPTDS
Analyte CASRN MRL
Health Information
n-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) 2991-50-6 0.005 |ig/L
No EPA health assessment
n-methyi perfluorooctanesulfonamidoacetic acid (NMeFOSAA) 2355-31-9 0.006 |ig/L
No EPA health assessment
perfluorotetradecanoic acid (PFTA) 376-06-7 0.008 |ig/L
No EPA health assessment
perfiuorotridecanoic acid (PFTrDA) 72629-94-8 0.007 |ig/L
No EPA health assessment
1 Determination of Selected Per- and Polyfluorinated Alkyl Substances in Drinking Water by Solid Phase Extraction and Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS), Version 2.0, March 2020
United States
Environmental Protection
hI Agency
Office of Water
Slide 55 of 145
Lithium (Metal/Pharmaceutical)
EPA Method 200.71 (ICP-AES), SM 3120 B2, ASTM D1976-203
Location: EPTDS
Analyte CASRN MRL Health Information
EPA Draft CCL 5 Health Reference Level4 = 10 n.g/L
lithium 7439-93-2 9 |ig/L EPA PPRTV5: p-RfD = 0.002 mg/kg-day (Chronic and Subchronic);
lower bound of the therapeutic serum concentration range selected as basis
1 Determination of Metals and Trace Elements in Water and Wastes by Inductively Coupled Plasma-Atomic Emission Spectrometry, Revision 4.4., 1994
2Standard Methods (SM) 3120 B (2017) or SM Online 3120 B-99 (1999 [Revised December 14, 2020])
3ASTM International (ASTM) D1976-20, 2020
4Draft CCL 5 Contaminant Information Sheets, 2021; non-cancer health value; not federally enforceable
5 EPA Provisional Peer-Reviewed Toxicity Value (PPRTV), 2008
&EPA
U nited States ฐffice ฐf Water
Environmental Protection
Agency slide 56 of 145
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
EPA Lifetime Health Advisories
Identify levels to protect all people, including sensitive populations and life stages, from
adverse health effects resulting from exposure throughout their lives to contaminants in
drinking water
Calculated to offer a margin of protection against adverse health effects
Take into account other potential sources of exposure (e.g., food, air, consumer products)
Non-enforceable and non-regulatory
Provide technical information for PWSs, States, and public officials on health effects,
analytical methods, and treatment technologies
For more information on EPA health advisories, visit:
https://www.epa.gov/sdwa/drinking-water-health-advisories-has
pM United States
Environmental Protection
mI Agency
EPA Lifetime Health Advisories for PFAS
For more information on PFAS: https://www.epa.gov/pfas/pfas-explained
For questions and answers on the interim (PFOA, PFOS) and final (GenX
chemicals, PFBS) EPA lifetime health advisories published in June 2022:
https://www.epa.gov/sdwa/questions-and-answers-drinking-water-health-
advisories-pfoa-pfos-genx-chemicals-and-pfbs
Fact Sheet for PWSs: https://www.epa.gov/system/files/documents/2022-
06/drinking-water-ha-pfas-factsheet-water-svstem.pdf
Fact Sheet for Communities: https://www.epa.gov/system/files/documents/2022-
06/drinking-water-ha-pfas-factsheet-communities.pdf
JL United States
Environmental Protection
IhI Agency
Office of Water
Slide 57 of 145
Office of Water
Slide 58 of 145
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
NCOD and Data Summary Document
After UCMR 5 monitoring starts, EPA will update the NCOD and publish a "Data Summary"
approximately quarterly at the link below
The Data Summary will summarize the NCOD results at a national level (e.g., the number of
PWSs with results above the MRL), provide data field definitions, and tabulate health-based
information from EPA risk assessments for the UCMR 5 contaminants alongside MRLs to help
inform interpretation of results
Health-based reference values (e.g., EPA lifetime health advisory values) are reported as
concentrations in water, if available, or reference doses
MRLs are the lowest concentrations that laboratories can report for a UCMR 5 contaminant
EPA will continue to look for ways to improve the document to make sure we are providing
stakeholders with the most appropriate information
National occurrence data publicly available:
https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule
pM United States
Environmental Protection
mI Agency
Public Access to UCMR Results
Annual Consumer Confidence Reports (CCRs)
Required by 40 CFR ง141.153(d)(7) for community water systems (CWSs)
Detected unregulated contaminants, for which monitoring is required: the table(s)
must contain the average and range at which the contaminant was detected (i.e.,
measured > the UCMR MRL). 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
JL United States
Environmental Protection
IhI Agency
Office of Water
Slide 59 of 145
Office of Water
Slide 60 of 145
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
Public Access to UCMR Results
Public Notification
Required by ง141.207 for all PWSs (CWSs and NTNCWSs subject to UCMR)
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 ง141.204(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
PWSs should be aware that some States may have requirements for communicating
PFAS monitoring results to consumers and/or reporting them to the State
pM United States
Environmental Protection
mI Agency
Frequently Asked Question
Can a PWS use State-required PFAS monitoring results for UCMR 5?
PWSs may be able to conduct PFAS sampling that meets the needs of both State-required and UCMR 5
monitoring, with the understanding that UCMR 5 requirements must be met including:
PFAS samples must be analyzed by an EPA-approved UCMR 5 laboratory using EPA Method 533 and
Method 537.1 to conduct the analysis for the respective PFAS, as required under UCMR 5.
Sampling must take place during the 2023-2025 UCMR 5 monitoring period and follow UCMR 5 sampling
frequency requirements
State-required MRLs must be equal to or lower than the UCMR 5 MRLs
EPA offers flexibility for PWSs to reschedule their UCMR 5 monitoring, and PWSs may do so to coordinate it
with their State-required monitoring. PWSs wishing to conduct "dual purpose" monitoring (i.e., concurrently
meeting the State and UCMR 5 needs) may contact their State or EPA, as appropriate, if there are questions
about whether both requirements are being met.
JL United States
Environmental Protection
IhI Agency
Office of Water
Slide 61 of 145
Office of Water
Slide 62 of 145
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
Frequently Asked Question
Will EPA provide materials specific to sampling procedures for PFAS?
The Agency prepared outreach material for PWSs on PFAS sampling for UCMR 5 (Appendix 1):
Sampling instructions specific to the small PWS sampling kit
Video demonstrating the sampling procedures
Tips to reduce cross-contamination
Please Note: The instructions are specific to the UCMR 5 sampling kit for small PWS monitoring
and are not Agency-wide PFAS sampling guidance.
v>EPA
United States
Environmental Protection
Agency
Office of Water
Slide 63 of 145
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Slide 64 of 145
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
PWS-Specific Questions about UCMR 5
If you have detailed questions that apply to your PWS specifically,
please email the appropriate inbox below
UCMR5@glec.com
Schedule, sampling locations, applicability (e.g., PWS merged with
another PWS(s), size category has changed, source water has changed),
seasonal sample points
UCMR_Sampling_Coordinator@epa.gov
Schedule and sampling location changes (post-2022), representative
monitoring
oEPA
U n ited States Office of Water
Environmental Protection
Agency slide 65 of 145
Questions on the Presentation
' Click on "?" in the upper part of the control
panel (Figure 1) to submit
questions/comments
Type a question in the box; click send (Figure 2)
' Submit general clarifying questions
throughout the webinar
Questions will be answered in the question box
throughout the presentation
Common questions will be answered after the
break and at the end
Figure 1
Figure 2
Want answers
o
ฉ
Ask the staff a question
k.
Send
*>EPA
United States
Environmental Protection
Agency
Office of Water
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
Questions and Answers Received in Question Box
Representative Samples
(PWS Options)
Derek Losh, U.S. EPA
Office of Ground Water and Drinking Water
Standards and Risk Management Division
Unregulated Contaminant Monitoring Branch
vvEPA
U nited States office ฐf Water
Environmental Protection
Agency slide 68 of 145
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
Overview
Ground Water Representative Monitoring Plan (GWRMP) Program
Option for systems with ground water sources to reduce monitoring
Representative Sampling from Wholesaler Connections
Option for systems that purchase water with multiple connections from the
same wholesaler to reduce monitoring
pM United States
Environmental Protection
mI Agency
Ground Water Representative Monitoring Plan
(GWRMP) Program
Applications from PWSs are now being accepted
PWSs with multiple ground water EPTDSs can sample at representative locations rather
than at each EPTDS, with EPA approval
A representative EPTDS is associated with a ground water well that:
Is in close proximity to and draws from the same source as the wells it represents (i.e., same
aquifer)
Is representative of the highest annual volume and most consistently active wells
Will be in use at the scheduled sampling time
The document "Instructions for Preparing a Ground Water Representative Monitoring Plan for
the Unregulated Contaminant Monitoring Rule" is available in the docket at:
https://www.reeulations.eov/document/EPA-HQ-OW-2020-0530-0128
JL United States
Environmental Protection
IhI Agency
Office of Water
Slide 69 of 145
Office of Water
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
GWRMP Program
Key GWRMP proposal requirements:
Site map showing the locations of all wells and the proposed representative
wells. Generally, represented wells should be located within a mile of the
representative well
Uniform contamination susceptibility among the represented wells and their
representative well
Historical ground water quality data demonstrating similarity among the
represented wells and the representative well
All of the wells have either the same treatment or no treatment
pM United States
Environmental Protection
mI Agency
GWRMP Program
GWRMPs approved under prior UCMRs
May be used for UCMR 5 if there are no significant changes in the configuration of the ground
water EPTDSs since prior approval
PWS must send a message to UCMR_Sampling_Coordinator@epa.gov to confirm intention to use
the previous GWRMP
EPA sent reminder emails to PWSs with previous GWRMPs in September 2022 to confirm reuse
Amending GWRMPs
Requests for change must also be submitted to UCMR_Sampling_Coordinator@epa.gov
If new wells are being added to the plan, an amendment request must be accompanied by the
supporting information discussed on the preceding slides
JL United States
Environmental Protection
IhI Agency
Office of Water
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Office of Water
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
GWRMP Program
PWSs must prepare proposals for any new GWRMPs and submit them to
UCMR_Sampling_Coordinator@epa.gov six months prior to their scheduled
sample collection
PWSs scheduled for sample collection in 2023 are encouraged to submit plans by
December 31, 2022, to allow time for review by EPA and, as appropriate, the State
For more information, contact UCMR_Sampling_Coordinator@epa.gov
To participate in the GWRMP program for UCMR 5, a PWS must:
Confirm use of previously-approved GWRMP,
Propose an amendment to a previously-approved GWRMP, or
Submit a proposal for new GWRMP
pM United States
Environmental Protection
mI Agency
Frequently Asked Question
How does a PWS establish a GWRMP for UCMR 5?
There are three ways for a PWS to establish a GWRMP for UCMR 5. All three require the PWS to initiate
the process six months prior to the PWS's scheduled sample collection date by sending an email to
UCMR_Sampling_Coordinator@epa.gov.
1) The PWS may use a GWRMP from a previous UCMR cycle by emailing EPA to confirm this intention and
that no significant changes have occurred to the ground water EPTDSs since the GWRMP was approved.
2) The PWS may request to modify a previous GWRMP if significant changes have occurred to the ground
water EPTDSs. The PWS must email EPA all appropriate information supporting the changes, which may
include a revised site map or historical water quality data, consistent with the criteria outlined in the
instructions for preparing a GWRMP (available in the docket).
3) The PWS may submit a proposal for a new GWRMP by sending an email to EPA listing the proposed
representative ground water sampling EPTDSs and containing all appropriate supporting information,
consistent with the criteria outlined in the GWRMP instructions.
JL United States
Environmental Protection
IhI Agency
Office of Water
Slide 73 of 145
Office of Water
Slide 74 of 145
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
Representative Sampling from Wholesaler Connections
PWSs that purchase water with multiple connections from the same
wholesaler may select one representative connection from that
wholesaler
Does not need EPA approval
Upload your representative connection to SDWARS
If selected representative connection is not in service at the time of
sample collection, a different representative connection from the same
wholesaler must be sampled
pM United States
Environmental Protection
mI Agency
Frequently Asked Question
I have a consecutive connection with multiple connections from the
same wholesaler. What do I do?
PWSs that purchase water with multiple connections from the same wholesaler
may select one representative connection from that wholesaler, as specified in 40
CFR 141.40(a)(3) Table 1, footnote c. The entry point to the distribution system
(EPTDS) representative sampling location must be representative of those that
receive the highest annual volume. If the connection selected as the
representative EPTDS is not available for sampling, the PWS must sample an
alternate highest volume representative connection.
JL United States
Environmental Protection
IhI Agency
Office of Water
Slide 75 of 145
Office of Water
Slide 76 of 145
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
SDWARS and UCMR 5 Reporting Requirements
Jillian Toothman, U.S. EPA
Office of Ground Water and Drinking Water
Standards and Risk Management Division
Unregulated Contaminant Monitoring Branch
oEPA
U n ited States Office of Water
Environmental Protection
Agency slide 77 of 145
Overview
SDWARS 5
Central Data Exchange (CDX) account
Large PWS workflow
Notification letter
Updating contact/inventory/schedule/Zip Codes
Reporting requirements and data elements
Timing of reporting
Data review
*>EPA
United States
Environmental Protection
Agency
Office of Water
Page 39 of 75
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
SDWARS 5
Safe Drinking Water Accession and Review System (SDWARS) used by PWSs
and EPA-approved UCMR 5 laboratories to report results
Internet-based electronic reporting system that utilizes a secure access portal,
the Central Data Exchange (CDX), to access
https://cdx.epa.gov/
https://www.epa.gov/dwucmr/reporting-requirements-unregulated-contaminant-
monitoring-rule-ucmr-5
All PWSs must log in to SDWARS 5.
This is EPA's main way of communicating with PWSs regarding deadlines, inventory
changes/corrections, sampling reminders, availability of analytical results, etc.
pM United States
Environmental Protection
mI Agency
SDWARS 5/CDX Registration
To register to use the CDX:
Go to https://cdx.epa.gov/preregistration/
Enter the customer retrieval key (CRK) you received by email (sender UCMR@epacdx.net) or by physical
mailing if no email address was available (refer to slide 35)
Follow the directions to complete registration
All PWSs should have received a CRK
If you lost/did not receive a CRK, please contact EPA's implementation contractor GLEC at the UCMR
Message Center at UCMR5@glec.com or 1-800-949-1581
Please do this as soon as possible
If you have CDX/SDWARS 5 registration issues after using your CRK , please contact the CDX Help Desk at
helpdesk@epacdx.net or call 1-888-890-1995
JL United States
Environmental Protection
IhI Agency
Office of Water
Slide 79 of 145
Office of Water
Slide 80 of 145
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
SDWARS Workflow for Large PWSs - Overview
Complete pre-sampiing activities before December 31, 2022
Step 1: Log in to CDX
Step 2: Select SDWARS 5 arid accept your PWS's UCMR 5 notification letter
Step 3: Add/review/edit sample locations
Step 4: Add/edit Zip Code(s) served
Step 5: Review sampling schedule
Step 6 (optional): Nominate additional user(s) for your PWS
Respond to specific UCMR 5 data elements (functionality available once
monitoring starts)
SDWARS 5 Walkthrough Video for Large PWSs
Includes additional information for completing your pre-sampling activities in SDWARS
https://www.voutube.com/watch?v=2l4oUSGR4Fc
v>EPA
United States
Environmental Protection
Agency
Office of Water
1. Log in to CDX
CODfc Central Data Exchange
https://cdx.epa.gov/
Log in to CDX
I Show Password
Log In Register with CDX
Forgot your Password?
Forgot your User ID?
Warning Notice and Privacy Policy
vvEPA
United States
Environmental Protection
Agency
Office of Water
Page 41 of 75
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
2. Select SDWARS 5 and Accept Notification Letter
To read and accept your notification letter, you must select SDWARS 5
Your PWS's notification letter should automatically open
ฆ Status of acceptance of notification is tracked in SDWARS 5
v>EPA
United States
Environmental Protection
Agency
Office of Water
Slide SB of 145
2a. Select SDWARS 5
&EPA
kf l_l #V United States Environmental Protection Agency
Home About Recent Announcements Terms and Conditions FAQ Help Virtual Assistant
CDXc Central Data Exchange
S Contact Us
Logged in as JSHUTSON (Log out)
Inbox My Profile | Reg Maint Submission History Payment History
Status ฆ*" Program Service Name
Role *
&
UCMR4: Unregulated Contaminants Monitoring Rule 4
SDWARS4
a
UCMR5: Unregulated Contaminants Monitoring Rule 5
SDWARS5
COX Service Availability
See the status for all program services
News and Updates
No news/updates.
vvEPA
United States
Environmental Protection
Agency
Office of Water
Slide 84 of 145
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
2b. Proceed to Notification Letter
CDXr Central Data Exchange
Statu? -
UCMR4: Unregulated G
UCMR5: Unregulated G
Logged in as SHOMANSE
' Application Profile Settings
| Organization Name
PWS Name
j Program Client ID
PWS Identification Number
, Program
UCMR5
s fgr all Qrogram service
lews and Updates
Ddates.
Once logged-in, your personal PWS Name and ID will appear in those sections, which are marked in yellow
above. Click "Proceed" to view Notification Letter.
v>EPA
United States
Environmental Protection
Agency
Office of Water
Slide 85 of 145
2c. Read and Accept Notification Letter
i Wซ UCIW t unssae?
vvEPA
United States
Environmental Protection
Agency
Office of Water
Slide 86 of 145
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
3. Add/Review/Edit Inventory
Identify/confirm all entry points to your distribution system (EP)
Option 1: Select the EP locations used for UCMR 4, as applicable, and
review/edit as appropriate
Option 2: Select the EP locations provided by your State/primacy entity in
late 2021 for your PWS, if available, and review/edit as appropriate. This
information may be more up to date than UCMR 4 locations (Data Call)
Option 3: If your PWS did not participate in UCMR 4 and your
State/primacy entity did not provide any EP locations on your behalf, you
must add your EP locations
v>EPA
United States
Environmental Protection
Agency
Office of Water
3. Load Inventory from UCMR 4 or State/Primacy Entity
Inventory
O Please ensure all required sample locators for UCMR 5 are included in trie inventory Below This nckides an entry pants to the dutnbu6ซi system.
Active Location? It a location vM not be active at any point during sampling <2023-2025; sefect No from (he dtosxiov>ri menu You must dick Save tor the Wotmatwn to be added to
To download or print the inventory lot use the icons next to IheFner search box
Ore* Load Inventory to view and load inventory for your PAS Iron UCMR 4 a from state provided data
Use the Super PWS search box to view and edit inventory and comments for your dotwisneam PViSs
Super PWS
PWS ID -Inventory
Factype Water Type 5PIO Ik SPNs
No dซa avaaacie In table
a
vvEPA
United States
Environmental Protection
Agency
Some PWSs wJI be presented with two epSons for pre-populafiog I heir inventory Yog
may review bcffi options ซ applicable) and select the most accurate Once you have
seiected your option you wil not be ab6e lo return to this page- You nay review add,
and edit your entry-point locations using me Inventory page
Use the drop-down menu to sefect the inventory used in the previous UCMR cycle
(UCWl 4) (IT available) OR inventory provided by your State
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
3. Add/Review/Edit Inventory-Manual Entry
PWSID
Inventory
Filter
iS
Active Location? Fac 10 i
Fac Name
Fac Type
Water Type
SP ID i\,
SP Name
SPTypซ
I Yes v | 11037
CC 37
CC
MX
MX 11037
Consecutve Connection
IS]
I Yes v | 11040
CC 40
CC
SW
SW11048
Consecutve Connection. Surface Water 49
EP f
0
I Yes v | SSOOt
TP 001
TP
GU
TP0O1
Treatment Plant 1
EP /
0
Showino 1 ia3of3tflPiM
| Add New Facdity
T
United States
Environmental Protection
M ปAgency
3. Add/Review/Edit Inventory - Manual Entry
Create a new Facility
and Sample Point
Add a Sample Point
to an existing Facility
United States
Environmental Protection
M % Agency
Page 45 of 75
Office of Water
Slide 89 of 145
Add Facility
Add Sample Point i
o You must complete every field marked with an (*). You must cStk Save for the
information to be added to the database
O You must complete every field marked with an (*). You must click Save for the
information to be added to the database
Facility ID"
Facility Name*
Facility Type" *
Facility: 11037-CC 37
Water Type" v
Sample Point ID*
Sample Point ID*
Sample Point Name*
Sample Point Name"
Sample Point Type EP Entry Point to the Distribution System
Sample Point Type (determined by Facility Type}
(SS.PWS.1020a,QH c,osฎ
(SS-PWS-1020b)^^J Close
Office of Water
Slide 90 of 145
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
4. Add/Edit Zip Codes Served
Zip Codes
t reputed lo add 2p codes) associated with aBai
in your se
i selected zip codes
or enter a partial zip code ie.g Searching "123* ซ return all zip codes tftat contain 123.)
To dowrtoad of prmi (he ssป ofopcodes use Bie cons ned to the Filer search box
Use the Super PWS search bo* to manage 2p Codes for you downstream PWSs
Super PWS
PWSID -ZipCodes
Showing 0 to OtfOertnes
No data available m tabte
v>EPA
United States
Environmental Protection
Agency
Add Zip Codes associated with all
customers served by your PWS
Click "Add Zip Codes" for pop-up window
O You can copy^paste or manually enter a comprehensive &sto< zip code(s)wimin
the ap code tek) A zip code MUST be a frve-dlot number The zฎ code(si w> be
vended aganst a 1st o( vaM USPS op codes (as of Decemoer 2021 j H a sp code;s>
is flagged make sure A s coned before adding it You must cfccfc Add Zip Codecs) foi
Bie zip code's) to be added to Ihe database
Zip Codes can be
copy/pasted or typed
(SS-PWS-IOIObi'l
Office of Water
Slide 91 of 145
4. Add UCMR 4 Zip Codes Served
Zip Codes
> PWS Home Zip Codes
O You arc required to acd zip codc(s) associated with all customers in your service area.
Cllcs Add Zip Codes lo aUU a zip cude(si.
lo nltei, enter a specmc zpcode in the Hitersearcn box or enter a partial zip code (e.g., searching "123" will return all zip codes tnat conta
To download or print the list of zip codes, use the icons hexttothe Filler search box
Use the Load Zip Codes button to upload the list of zip codes that were submitted urder UCMR <.
Use the Super PWS search box to nanage Zip Codes for your downstream PWSs.
Super PWS
PWSID - Zip Codes
n 1
Show 50 v entries
~ Zip Code
Filter i g
Showirg 0 to 0 of 0 entries
Prev NpxI
vปEPA
United States
Environmental Protection
Agency
Load Zip Codes from SDWARS4
ฉ You are required to add zip code(s) associated with all customers in your service
area. Select the zip code(s) from the last cycle (UCMR 4) that are still applicable.
~
Zip Code
a
Q
20724
-
~
20794
~
21012
a
21061
a
21076
a
21108
w
(SS-PWS-1010a)
I Close
Office of Water
Slide 92 of 145
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
Frequently Asked Question
Why do I need to report Zip Codes for all areas being served water by my PWS?
EPA will continue to collect U.S. Postal Service Zip Code(s) for UCMR 5, as collected
under UCMR 3 and UCMR 4, to support potential assessments of whether or not certain
communities are disproportionately impacted by particular drinking water
contaminants. The specification for this one-time reporting requirement is established
in 40 CFR 141.35(c)(1) and (d)(1) for large and small systems, respectively.
United States
Environmental Protection
mI Agency
5. Review/Revise Sampling Schedule
EPA initially drafts large PWS schedule
Partnered State had opportunity to review and modify
Large PWS has opportunity to review and modify schedule until
December 31, 2022
Systems must NOT modify their schedules to avoid a suspected
vulnerable period
Schedule changes after December 31, 2022, must be submitted to
UCMR_Sampling_Coordinator@epa.gov and approved by EPA
Provide a reason for the change
ฃ\ United States
Environmental Protection
IhI Agency
Office of Water
Slide 93 of 145
Office of Water
Slide 94 of 145
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
5. Review/Revise Sampling Schedule
Schedule
> PWS Home Schedule
0 For surface water (SW) ground water under the direct influence of surface water (GU) and mixed locations (MX) sampling should lake place for four consecutive quarters over (he
course of 12 months (for a tola! of 4 sampling events) These sampling everts should occur Ihree months apart For ground water (GW) locations sampling should take place twice
over the course of 12 months \tot a total of 2 sampling events) These sampling events should occur five to seven months apart
Click ihe month.year in blue text for Sample Event 1 (SE1) to edit the schedule for that location
To sort schedule, use the individual headers By clicking on them (e g Facility ID Facility Name Sample Point ID etc. ) or filler for schedule using Ihe Filter search Box To filter enter a
spec-fic identifier (eg sample point ID Facility ID) m Ihe Filter search cox or enter a partial identifier (eg Searching "ABC" win return all sample pant IDs that contain ABC.)
To download or print the schedule use ihe icons next to the Filter search box
Use the Super PWS search box to view and edit schedule and comments for your downslream PWSs
Super PWS
PWSID - Schedule
Filter i, g
FaclOi Fac Name Fac Type Water Type SPID U SPName SPType SE1 SE2 SE3 SE4
11037 CC 37 CC MX MX 11037 Consecutive Connection EP Aug 2020 Nov 2020 Feb 2021 May 2021
11040 CC40 CC SW SW11049 Consecutive Connection / Surface Water 49 EP Aug 2020 Nov2020 Feb 2021 May 2021
99001 TP 901 TP GU TP901 Treatmenl Planl I EP Aug 2020 Nov 2020 Feb 2021 May 2021
Showing 1 to 3 of 3 entries
jy United States
Environmental Protection
M ปAgency
Office of Water
Slide 95 of 145
6. Nominate User for Your PWS (optional)
You may nominate other individuals to
serve as representatives for your PWS using
the Nominate User function by selecting
your account/person icon in the upper
right-hand corner
A new letter will be generated, which you
must provide to the nominee for use in
establishing their own account
vปEPA
United States
Environmental Protection
Agency
1
' PWS Code 998000011
PWS Test PWS #8-011
System Size: smal (< tbd)
Nominate User
ite a <
Notification Letter
SDWARS5 Sitemap
MyCDX
Inbox
Logout
I I
Office of Water
Page 48 of 75
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
6. Nominate User for Your PWS (optional)
PWS Code*
First Name'
Last Name*
Organization Name"
Registrant's Work Mailing Address 1*
Registrant's Work Mailing Address 2
City*
State"
Zip Code*
Phone'
Email*
jy United States
Environmental Protection
M ปAgency
6. Nominate User for Your PWS (optional)
Nominate a PWS User
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
(TO BE PROVIDED TO NOMINATED CDX USER ONLY)
SENSITIVE
NOMINEE
January 26, 2022
Contact's Name
Department - PWSID
Address
City, State, Zip
Contact's Name
[Nominator's Name] and U S Environmental Protection Agency (EPA) are providing you with the opportunity to report Unregulated Contaminant Monitoring Rule (UCMR) information for
EPA and further nominate other individuals
To obtain access to register on Central Data Exchange (CDX). you will need to enter the Mowing unique customer retrieval key at the CDX registration site
| 830d77d4-4187-49dc-80e4-d8d6d4b471ac |
i i
United States
Environmental Protection
M % Agency
Office of Water
Slide 97 of 145
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
PWS Home Page and Checklist
PWS Home
O Use the labs at the top of the page to access Inventory Schedule and Zip Codes
Use (he person Icon in Bte upper right corner lo Nominate User view the Notification Letter view the SDWARS 5 Sitemap, go to MyCDX go to Inbox or Logout
Use the Completion Checklist to view your status on completing your reporting requirements The buttons under Action will allow you to view your Signed Notification Letter eC't
Inventory and add Zip Codes
ICR#: 202111-2040-003
OMBf: 2040-0304
PWS ID: 998000018
PWS Name: Test PWS#8-08
System Size: large (> tbd 1
Monitoring Requirements: AM
Completion Checklist
Dataset Status Action
Signed Notification Letter Is Signed
Inventory Has Dala
Zip Codes MISSING Q
jy United States
Environmental Protection
M ปAgency
Office of Water
Slide 99 of 145
SDWARS Email Reminders
CDX/SDWARS users will receive automated emails for their PWS for:
Zip Code completion (sent on a quarterly basis if incomplete)
Sampling reminders (sent the month before scheduled sample event date)
Data element completion (sent the month after sample event if incomplete)
Missing analytical result reminders (PWS needs to input a valid comment
for any missing data)
United States Office of Water
Environmental Protection
Agency slide 100 of 145
Page 50 of 75
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
SDWARS Sitemap
PWS ID
PWS: Name
System Size large (> 10,300)
Nominate User
Notification Letter
Need Help?
SDWARS5 Sitemap
MyCDX
Inbox
Logout
v>EPA
SDWARS5 Large PWS Functionality
*
ri
Daring After
- schedule schedule
Entry Pซnod Entry Period
Ed* FMfaty Edit Sjmple
~t~
Itryperwa inwyroi
I I
r~i
~ Control
mniltj
pwrnj Schtdulr entry Period- period in whxfr unnmrttd
After schedule entry Periodฆ period ซi whk>< frnted editt can be
made to schedules and inventory.
MOTt: Ttdmkol and Official contacts must be enured to access
United States
Environmental Protection
Agency
Office of Water
Slide 101 of 145
Large System Reporting ง141.35(c)
Contact and Zip Code information
SDWARS by December 31, 2022
Sampling location information
SDWARS by December 31, 2022
Changes after December 31, 2022, must be submitted to UCMR_Sampling_Coordinator@epa.gov and
approved by EPA
Data elements
PWSs must report all data elements specified in ง141.35(e) Table in SDWARS
PWSs will be able to add data element responses once monitoring starts
Analytical results
Uploaded to SDWARS by the large PWS's contracted laboratory within 90 days from the sample collection date
Reviewed and submitted by the large PWS in SDWARS within 30 days from when the laboratory posts the data
vปEPA
United States
Environmental Protection
Agency
Office of Water
Slide 102 of 145
Page 51 of 75
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
Reporting Data Elements ง141.35(e)
Data Elements Reviewed by Large PWS
Before Sampling Begins
Data Elements Reported by Large PWS
at Sample Collection
1. Public Water System Identification (PWSID) Code
10. Disinfectant Type
2. Public Water System Name
11. Treatment Information
3. Public Water System Facility Identification Code
26. Historical Information for Contaminant
Detections and Treatment
4. Public Water System Facility Name
27. Potential PFAS Sources*
5. Public Water System Facility Type
*EPA is not asking for a formal, in-depth, source water
evaluation for Data Element 27. EPA recognizes that the
response requires judgement and that some PWSs will have
more complete information than others.
6. Water Source Type
7. Sampling Point Identification Code
8. Sampling Point Name
9. Sampling Point Type Code
Data elements 12-25 are reported by the laboratory and are not shown in the table above
If you have questions or need assistance providing the data elements listed above, please contact the UCMR
Message Center at UCMR5@glec.com or 1-800-949-1581
United States Office of Water
Environmental Protection
Agency slide ios of 145
Disinfectant Type -1
Data Element 10
All of the disinfectants/oxidants that have been added prior to and at the entry point to the distribution system.
Please select all that apply.
PEMB = Permanganate
HPXB = Hydrogen peroxide
CLGA = Gaseous chlorine
CLOF = Offsite generated hypochlorite (stored as liquid form)
CLON = Onsite generated hypochlorite
CAGC = Chloramine (formed with gaseous chlorine)
CAOF = Chloramine (formed with offsite hypochlorite)
CAON = Chloramine (formed with onsite hypochlorite)
CLDB = Chlorine dioxide
OZON = Ozone
ULVL = Ultraviolet light
OTHD = All other types of disinfectant/oxidant
1 NODU = No disinfectant/oxidant used |
United States
Environmental Protection
^#^1 M ปAgency
Office of Water
Slide 104 of 145
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
Treatment Information -
Data Element 11
Treatment information associated with the sample point. Please select all that apply.
CON = Conventional (non-softening, consisting of at least
coagulation/sedimentation basins and filtration)
SFN = Softening
RBF = River bank filtration
PSD = Pre-sedimentation
INF = In-line filtration
DFL = Direct filtration
SSF = Slow sand filtration
BIO = Biological filtration (operated with an intention of maintaining biological
activity within filter)
UTR = Unfiltered treatment for surface water source
GWD = Groundwater system with disinfection only
PAC = Application of powder activated carbon
NTU = No treatment used
DKN = Do not know
vvEPA
United States
Environmental Protection
Agency
GAC = Granular activated carbon adsorption (not part of filters in CON,
SFN, INF, DFL, or SSF)
AIR = Air stripping (packed towers, diffused gas contactors)
POB = Pre-oxidation with chlorine (applied before coagulation for CON
or SFN plants or before filtration for other filtration plants)
MFL= Membrane filtration
IEX = 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
Office of Water
Slide 105 of 145
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
YES= If yes, select all that apply:
MB = Military base
FT = Firefighting training school
AO = Airport operations
CW = Car wash or industrial launderers
PS = Public safety activities (e.g., fire and rescue services)
WM = Waste management
HW = Hazardous waste collection, treatment, and disposal
UW = Underground injection well
SC = Solid waste collection, combustors, incinerators
MF= Manufacturing
FP = Food packaging
TA = Textile and apparel (e.g., stain- and water-resistant, fiber/thread,
carpet, house furnishings, leather)
NO = Not aware of any potential current and/or historical sources
DK = Do not know
v>EPA
United States
Environmental Protection
Agency
PP = Paper
CC = Chemical
PR = Plastics and rubber products
MM = Machinery
CE = Computer and electronic products
FM = Fabricated metal products (e.g., nonstick cookware)
PC = Petroleum and coal products
FF = Furniture
OG = Oil and gas production
UT = Utilities (e.g., sewage treatment facilities)
CT = Construction (e.g., wood floor finishing, electrostatic painting)
OT = Other
Office of Water
Slide 107 of 145
Select Responses for UCMR 5 Data Elements (availableJanuary2023)
Fac IDj i Fac Name
00002 EP/SW 002
Showing 1 to 1 of 1 entries
Fac Type Water Type SP ID Ji SP Name
SS SW SP00002 Sample Point for EP/SW 002
Filter:
SP Type SE1 SE2 SE3 SE4
EP I Nov 2020 -I Feb 2021 - May 2021 - Aug 2021 ฆ
Disinfectant Types
Treatment Information
Historical Information for PFAS
Lithium Detections & Treatment
Potential PFAS Sources
Select appropriate responses for Disinfectant Type, Treatment Information, Historical
Information for PFAS/Lithium Detections and Treatment, and Potential PFAS Sources
vปEPA
United States
Environmental Protection
Agency
Office of Water
Slide 108 of 145
Page 54 of 75
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
Select Responses for UCMR 5 Data Elements (available January 2023)
Edit Disinfectant Types
Eat Historical Information for LiBwim Detections and Treatment
All of the cbsinfedants/oxtdants that have been added prior to and at the entry potnt to
the distribution system Please select all that apply
~ CAGC Chloranwie (formed with gaseous chlorine)
~ CAOF Chlorarmne (formed with off site hypochlorite) 1
CAOS
UCMR 5'
V
ฉ
/C\
V J (SS-SPWS-1030ej dose
~ CLDB Chlorine dioxide
~ CLGA Gaseous chlonne
Edrt Historical information '<* PFAS Detectors and TreatmeiU
Have you tested for PFAS in your drinking water m ihe pas* poor lo moral onng for
~ CLON Onsite generated hypochlorite
V
~ HPXB Hydrogen peroxide
~ OZON Ozone
~ PEMB Permanganate
/C\
V J SS-SPWS-lOJOej Close
~ ULVL Ultraviolet light
~ OTHD: AH other types of disinfectant/oxidant
~ NOOU No dismfectant'oxidant used
CR8f ซwaniMo>
E
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
View Quality Control Data
Quality Control Results
Abbreviations in front of Analyte Names correspond to: IS - Internal Standard, Surr -
Surrogate. IDA - Isotope Dilution Analogues.
Show 50 v entnes Filter.
QCTyp*;
Analysis
Date
Analyte Name
Recovery
Units
Acceptance
Range(%)
CCCH
5/3/2022
11CI-PF30UdS
110
%
69.5-130.5
CCCL
5/3/2022
11CI-PF30UdS
105
%
49 5-150.5
CCCM
5/3/2022
11CI-PF30UdS
97
%
69.5-130.5
FRB
5/3/2022
11CI-PF30UdS
0.0006
pg/L
NA
LFB
5/3/2022
11CI-PF30UdS
105
%
49.5-150.5
LRB
5/3/2022
11CI-PF30UdS
<0 0017
pg/L
NA
Showing 1 to 6 of 6 entries
vปEPA
United States
Environmental Protection
Agency
Office of Water
Slide 112 of 145
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
EPA Approval of Laboratories to Support UCMR 5
Paul Grimmett, U.S. EPA
Office of Ground Water and Drinking Water
Standards and Risk Management Division
Unregulated Contaminant Monitoring Branch
pM United States
Environmental Protection
mI Agency
Overview
Laboratory Approval Program
General expectations
Maintaining approval
Laboratory Approval Manual
List of Approved Laboratories for UCMR 5
Establishing laboratory contracts for your large PWS
For additional information, the document "UCMR 5 Laboratory Approval Manual Version 2.0"
is available in the docket at:
https://www.regulations.gov/document/EPA-HQ-OW-2020-0530-Q129
JL United States
Environmental Protection
IhI Agency
Office of Water
Slide 113 of 145
Office of Water
Slide 114 of 145
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
General Expectations
UCMR 5 Laboratory Approval Program registration closed on August 1, 2022
Laboratories must be approved by EPA to analyze UCMR 5 samples even
if already certified or accredited by a State/primacy entity for a particular
method being used in UCMR 5
Approval is by method and by individual laboratory locations
A laboratory could apply for approval for any method(s)
Laboratories need to meet:
UCMR 5 Laboratory Approval Program criteria
Required equipment criteria
Laboratory performance criteria
Data reporting criteria
vvEPA
United States
Environmental Protection
Agency
Office of Water
Slide 115 of 145
Maintaining Approval
During UCMR monitoring (2023-2025), EPA may revoke a laboratory's UCMR 5
approval status if they do not:
Adhere to quality assurance/quality control (QA/QC) procedures in the methods,
rule language, and the Laboratory Approval Manual
Post occurrence data and required QC data via SDWARS within the prescribed
timeframe
Respond to inquires or requests from the Laboratory Approval Coordinator
Participate in and pass on-site and/or paper audits
UCMR 5 approval is only valid through the UCMR 5 monitoring cycle
*>EPA
United States
Environmental Protection
Agency
Office of Water
Slide 116 of 145
Page 58 of 75
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
Laboratory Approval Manual
Includes procedures for obtaining UCMR approval and for revocation of approval
QA/Q.C requirements
MRL verification
Initial demonstration of capability (IDC)
Initial calibration
QC sample types
Surrogate and internal standard criteria
Field blank criteria (if required by the method)
Sample handling requirements
Available at: https://www.regulations.gov/document/EPA-HQ-OW-2020-0530-0129
vvEPA
United States
Environmental Protection
Agency
Office of Water
Slide 117 of 145
List of Approved Laboratories for UCMR 5
As of October 2022, 50 laboratories have attained EPA approval in
one or more of the three UCMR 5 methods
30 approved for all three methods
38 approved for EPA 533
42 approved for EPA 537.1
40 approved for EPA 200.7
The list of approved laboratories and associated methods is posted
and will be updated as necessary
if EPA revokes approval, or the laboratory requests to discontinue
program participation, it will be removed from the list
Available at: https://www.epa.gov/dwucmr/list-laboratories-
approved-epa-fifth-unresulated-contaminant-monitoring-rule-ucmr-5
vvEPA
United States
Environmental Protection
Agency
Office of Water
Slide 118 of 145
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
Establishing Laboratory Contracts
Large PWSs are responsible for monitoring arrangements, including sample collection, analysis, and
payment, unless otherwise directed by their State
Ensuring the laboratory conducting your UCMR 5 sample analysis posts the analytical results to SDWARS 5
Reviewing, approving, and submitting those results to EPA
Large PWSs can choose the approved laboratory(ies) that fits their needs
This includes using a single laboratory approved to analyze all 30 contaminants or multiple laboratories
Approved laboratories are permitted to analyze UCMR 5 samples from any State, Territory, or Tribe
Laboratories are responsible for communicating with the large PWS to ensure their client has a clear
understanding of the UCMR 5-specific requirements for sample collection, preservation, and shipping
If a sample does not meet a sampling requirement, laboratories would contact the PWS to set up a resample
If resamples continue to fail requirements, the laboratory would contact UCMR Laboratory Approval at
UCMR_Lab_Approval@epa.gov to discuss potential remedial actions
oEPA
U n ited States Office of Water
Environmental Protection
Agency slide 119 of 145
Frequently Asked Question
What is the approximate cost for a laboratory to analyze one UCMR 5 sample set?
Method Type
Average Analysis Cost per
UCMR 5 Sample1
25 PFAS using EPA Method 533 (Solid Phase Extraction (SPE) Liquid
Chromatography-Tandem Mass Spectrometry (LC-MS/MS))
$376
4 PFAS using EPA Method 537.1 Solid Phase Extraction (SPE) Liquid
Chromatography-Tandem Mass Spectrometry (LC-MS/MS))
$302
1 Metal using EPA Method 200.7 (Inductively Coupled Plasma-Atomic
Emission Spectrometry (ICP-AES)) or alternate SM2 or ASTM3
$62
Total4
$740
1The average analytical cost was determined by averaging estimates provided by four drinking water laboratories. Data can be found in the "Information Collection
Request" at https://www.regulations.gov/document/EPA-HQ-OW-2020-0530-0141
2Standard Method (SM) 3120 B or SM 3120 B-99
3 ASTM International (ASTM) D1976-19
4lf a PFAS sample is positive, the Field Reagent Blank (FRB) must be analyzed, resulting in higher aggregate analytical costs per sample set. PWSs may incur a cost of
up to $1,333, if the FRB for both EPA Method 533 and 537.1 must be analyzed
*>EPA
United States
Environmental Protection
Agency
Office of Water
Slide 120 of 145
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
Closing Remarks
Thank you for attending this UCMR 5 webinar
vvEPA
U n ited States Office of Water
Environmental Protection
Agency slide 121 of 145
If You Have Questions Following This Presentation - References
Presentation slides 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
* March 2022 Stakeholder Meeting Slides with Question and Answers
https://www.epa.gov/dwucmr/unregulated-contaminant-monitoring-rule-ucmr-meetings-and-
materials
Question and Answers for This Presentation
Questions received during the presentation were similar to the questions received during the
March 2022 webinar. Please refer to the March 2022 Stakeholder Meeting Slides (linked above)
and note the last bookmarked section - Appendix 2: Supplemental Q&A
*>EPA
United States
Environmental Protection
Agency
Office of Water
Slide 122 of 145
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
If You Have Questions Following This Presentation - References
UCMR Homepage and Fact Sheet
https://www.epa.gov/dwucmr
https://www.epa.gov/svstem/files/documents/2022-02/ucmr5-factsheet.pdf
https://www.epa.gov/svstem/files/documents/2022-08/Spanish-UCMR5-FactSheet-
ProgramOverview.pdf (Spanish Version)
SDWARS 5 Walkthrough Video for Large PWSs
https://voutu.be/2l4oUSGR4Fc
Safe Drinking Water Information
https://www.epa.gov/ground-water-and-drinking-water/safe-drinking-water-information
pM United States
Environmental Protection
mI Agency
If You Have Questions Following This Presentation - Contacts
UCMR Message Center
For general questions about requirements (e.g., inventory, data elements, schedule) or
navigating SDWARS, UCMR5@glec.com or 1-800-949-1581
* CDX Help Desk
For CDX/SDWARS 5 registration issues, helpdesk@epacdx.net or 1-888-890-1995
* UCMR Sampling Coordinator
UCMR_Sampling_Coordinator@epa.gov
Contacts
Brenda Bowden: bowden.brenda@epa.gov
Melissa Simic: simic.melissa@epa.gov
JL United States
Environmental Protection
IhI Agency
Office of Water
Slide 123 of 145
Office of Water
Slide 124 of 145
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
Accessing the UCMR 5 Docket
Go to https://www.regulations.gov and enter Docket ID EPA-HQ-OW-2020-0530
Direct link to docket: https://www.regulations.gov/docket/EPA-HQ-OW-2020-0530
v>EPA
United States
Environmental Protection
Agency
Office of Water
Slide 125 of 145
Accessing the UCMR 5 Docket
The UCMR 5 docket should pop up on the next screen
REFINE DOCKETS RESULTS ฉ SEARCH RESULTS
sort by Best Match -
Docket Type
Rulemakmg (11
H RULEMAKING
Revisions to the Unregulated Contaminant Monitoring Rule (UCMR 5) for Public Water Systems
Agency Environmental Proledfai Agency Docket ID EPA-HQ-OW-2020-0SJ0
vvEPA
United States
Environmental Protection
Agency
Office of Water
Slide 126 of 145
Page 63 of 75
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
Accessing the UCMR 5 Docket
Browse documents and comments using the tabs
i Docket Details
^ Docket ID
EPA-HQ-QW-2020-0530
Number of Comments Posted tc
this Docket
The Environmental Protection Agency (EPA) uses the Unregulated Contaminant Monitoring Rule (UCMR 5) to collect occurrence data
from public water systems for contaminants suspected to De present in drinking water but that do not have health-based standards set
under the Safe Drtnklng Water Act (SDWA) UCMR 5 provides the EPA and other interested parties with scientifically valid data on the
occurrence of selected contaminants in drinking water This data set is one of the primary sources of nationally representative occurrence
data used to guide Agency decisions about emerging contaminants in the public drinking water supply
v>EPA
United States
Environmental Protection
Agency
Office of Water
Slide 127 of 145
Questions on the Presentation
Click on "?" in the upper part of the control
panel (Figure 1) to submit
questions/comments
Type a question in the box; click send (Figure 2)
' Submit general clarifying questions
throughout the webinar
Questions will be answered in the question box
throughout the presentation
Common questions will be answered after the
break and at the end
Figure 1
Figure 2
Want answers?.
\
\
o
/
*
ฉ
Ask the staff a question
Exit
Send
vvEPA
United States
Environmental Protection
Agency
Office of Water
Slide 128 of 145
Page 64 of 75
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
Questions and Answers Received in Question Box
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# % Agency
Office of Water
Slide 129 of 145
Appendix 1:
UCMR 5 Small PWS Sampling Kit Instructions
and Tips to Reduce Cross-Contamination
United States Office of Water
Environmental Protection
Agency slide 130 of 145
Page 65 of 75
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
Sampling Instructions and Video
Please Note: These instructions are
specific to the UCMR 5 sampling kit for
small PWSs and are not Agency-wide PFAS
sampling guidance
EPA is recording a YouTube training video
that walks through sample collection
v>EPA
United States
Environmental Protection
Agency
Office of Water
Slide 1S1 of 145
r
To distribution
FedEx
(800) 463-3339
Freeze ice packs for at least 72 hours prior to sam-
pling. Do not sample until ice packs are frozen solid.
Samples arriving at the lab too warm is the #1
reason for having to re-sample!
Only sample on Monday, Tuesday or Wednesday.
Check the entry point to the distribution system
sample location. Ensure that any supplies or tools
needed to open and flush the tap are available.
Samples must be shipped the same day they are
collected unless they are refrigerated overnight.
Arrange with FedEx to pick up your samples or plan to
drop them off at a staffed FedEx Express location.
^ Don't rinse out or overfill the bottles
There are preservatives in the bottles that need to be dissolved into the
sample (that's why they need to be shaken). Overfilling can dilute the
preservative concentration in the bottle.
Don't contaminate the bottles, lids, or samples
Refer to the kit lid for additional precautions to minimize the possibility
of contaminating your samples.
Do not touch the inside of the cap or bottle.
Do not touch the bottle to the faucet.
Do not place the lids in a pocket.
Set bottle lids face up on a clean surface while sampling.
(Q) Date all sample bottles using the supplied pen
The lab needs to know when the samples were collected so they are
analyzed before they expire.
vปEPA
United States
Environmental Protection
Agency
Office of Water
Slide 132 of 145
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
-k
1. If present, remove aerator, hose, tubing and/or Teflon
tape from faucet.
2. Open and flush the valve for 2-5 minutes to obtain
a sample representative of the water entering the
distribution system. If previously calculated, a shorter
period of flushing may be sufficient.
3. Reduce stream to pencil thickness.
vปEPA
United States
Environmental Protection
Agency
A
I
*
Refrigerate all bottles if unable to pack and ship immediately
Put on a new pair of gloves
1. One at a time: uncap, fill to the shoulder, and recap
bottles from bag ~
2. Shake each bottle for 15 seconds
3. Write date on bottles and place back in bag R
Repeat steps 1-3 with bottles In bagQ
Office of Water
Slide 134 of 145
Page 67 of 75
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
Retrieve the four ice packs from your freezer and put them back In the kit. The
two big ones go on the sides, and the two smaller ones go on top of the samples.
Q ฃk tฃh ฃ3
niiin
Sign and date the blue form and seal It in the ziplock bag.
Place the ziplock bag on top of the foam box lid.
Seal the box shut with supplied tape strips.
Find the FedEx label and stick it over the old label.
Walt for FedEx Express to arrive if you scheduled a pickup, or drop off at a
staffed FedEx location.
This is a prepaid FedEx Priority Overnight label; you will incur no shipping
expenses.
v>EPA
United States
Environmental Protection
Agency
Office of Water
Slide 135 of 145
vปEPA
United States
Environmental Protection
Agency
Why must I collect these samples?
This sampling is required by EPA for public water systems. It is not voluntary. If you are
interested in learning more about the program, search for "UCMR5" online and visit EPA's UCMR
homepage.
What is being monitored for in the water samples?
Your drinking water is being tested for PFAS compounds and lithium.
I forgot/can't sample during my scheduled week. What should I do?
Call Great Lakes Environmental Center at (231) 525-0521 or email UCMR(3)GLEC.com
It's hot out. What should I do?
Chill the samples in a refrigerator for a couple hours before putting them in the shipping
container. Make sure the sample location on the bottles matches the sample location on the box
and paperwork when you're packing the kits for shipment.
How do I view my results?
To view your analytical results, inventory and schedule, log into the Safe Drinking
Water Accession and Review System (SDWARS) using the Central Data Exchange (cdx.epa.gov).
If you do not have an account or are having trouble logging in, contact the CDX Help Desk at
heipdesk(a)epacdx.net or call (888) 890-1995 from 8 AM to 6 PM (EST), Monday through Fri-
day.
If you have questions...
Call Great Lakes Environmental Center at (231) 525-0521 or email UCMR
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
Tips for Reducing Cross-Contamination
-------
The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
Abbreviations and Acronyms
|ig - Microgram
HCI-PF30UdS - ll-Chloroeicosafluoro-3-Oxaundecane-l-Sulfonic Acid
4:2 FTS - 1H, 1H, 2H, 2H-Perfluorohexane Sulfonic Acid
6:2 FTS - 1H, 1H, 2H, 2H-Perfluorooctane Sulfonic Acid
8:2 FTS - 1H, 1H, 2H, 2H-Perfluorodecane Sulfonic Acid
9CI-PF30NS - 9-Chlorohexadecafluoro-3-Oxanone-l-Sulfonic Acid
ADONA - 4,8-Dioxa-3H-Perfluorononanoic Acid
ATSDR - Agency for Toxic Substances and Disease Registry
AWIA- America's Water Infrastructure Act of 2018
CASRN - Chemical Abstracts Service Registry Number
CCL - Contaminant Candidate List
pM United States
Environmental Protection
mI Agency
Abbreviations and Acronyms
CDX - Central Data Exchange
CFR - Code of Federal Regulations
CWS - Community Water System
EPA - Environmental Protection Agency
EP/EPTDS - Entry Point to the Distribution System
FR - Federal Register
FRB- Field Reagent Blank
GenX - Trade Name for a Technology Used to Make High-Performance
Fluoropolymers Without the Use of PFOA
GWRMP - Ground Water Representative Monitoring Plan
Health Canada - Health Canada Guidelines for Canadian Drinking Water Quality
JL United States
Environmental Protection
IhI Agency
Office of Water
Slide 139 of 145
Office of Water
Slide 140 of 145
Page 70 of 75
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
Abbreviations and Acronyms
HFPO-DA - Hexafluoropropylene Oxide Dimer Acid
ICP-AES- Inductively Coupled Plasma-Atomic Emission Spectrometry
IDC - Initial Demonstration of Capability
IRIS - Integrated Risk Information System
kg - Kilogram
L - Liter
LC/MS/MS - Liquid Chromatography/Tandem Mass Spectrometry
MAC - Maximum Acceptable Concentration
MCLG - Maximum Contaminant Level Goal
mg- Milligram
MRL - Minimum Reporting Level
oEPA
U n ited States Office of Water
Environmental Protection
Agency slide 141 of 145
Abbreviations and Acronyms
NCOD - National Contaminant Occurrence Database
NDAA- National Defense Authorization Act
NEtFOSAA- N-Ethyl Perfluorooctanesulfonamidoacetic Acid
NFDHA- Nonafluoro-3,6-Dioxaheptanoic Acid
NMeFOSAA - N-Methyl Perfluorooctanesulfonamidoacetic Acid
NPDWR - National Primary Drinking Water Regulation
NTNCWS - Non-Transient Non-Community Water System
OGWDW - Office of Ground Water and Drinking Water
OW - Office of Water
PFAS-Per-and Polyfluoroalkyl Substance
PFBA-Perfluorobutanoic Acid
*>EPA
United States
Environmental Protection
Agency
Office of Water
Slide 142 of 145
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
Abbreviations and Acronyms
PFBS - Perfluorobutanesulfonic Acid
PFDA - Perfluorodecanoic Acid
PFDoA - Perfluorododecanoic Acid
PFEESA - Perfluoro (2-Ethoxyethane) Sulfonic Acid
PFHpA - Perfluoroheptanoic Acid
PFHpS - Perfluoroheptanesulfonic Acid
PFHxA - Perfluorohexanoic Acid
PFHxS- Perfluorohexanesulfonic Acid
PFMBA- Perfluoro-4-Methoxybutanoic Acid
PFMPA- Perfluoro-3-Methoxypropanoic Acid
PFNA - Perfluorononanoic Acid
JV United States
Environmental Protection
mI M * Agency
Office of Water
Slide 143 of 145
Abbreviations and Acronyms
PFOA - Perfluorooctanoic Acid
PFOS- Perfluorooctanesulfonic Acid
PFPeA- Perfluoropentanoic Acid
PFPeS - Perfluoropentanesulfonic Acid
PFTA - Perfluorotetradecanoic Acid
PFTrDA - Perfluorotridecanoic Acid
PFUnA - Perfluoroundecanoic Acid
PPRTV - Provisional Peer-Reviewed Toxicity Value
PWS - Public Water System
PWSID - Public Water System Identification Code
QA- Quality Assurance
United States
Environmental Protection
^#^1 M ปAgency
Office of Water
Slide 144 of 145
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
Abbreviations and Acronyms
QC - Quality Control
RfD - Reference Dose
SDWA - Safe Drinking Water Act
SDWARS - Safe Drinking Water Accession and Review System
SDWIS/Fed - Federal Safe Drinking Water Information System
SE - Sample Event
SP - Sample Point
SPE - Solid Phase Extraction
TNCWS - Transient Non-Community Water System
UCM - Unregulated Contaminant Monitoring
UCMR - Unregulated Contaminant Monitoring Rule
pM United States
Environmental Protection
mI Agency
Office of Water
Slide 145 of 145
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
Brenda Bowden has worked as an environmental scientist with the U.S. EPA's Office of Water, Office of
Groundwater and Drinking Water, Standards and Risk Management Division, Unregulated Contaminant
Monitoring Branch in Cincinnati, Ohio, for more than 15 years. She began her research on the first
Unregulated Contaminant Monitoring Rule (UCMR 1) as an Oak Ridge Institute for Science and
Education (ORISE) research fellow and has held various roles throughout every round of UCMR
monitoring. She is currently the UCMR rule manager. Brenda holds a B.S. in Environmental Science and
Toxicology from Ashland University and a M.En. in Environmental Science concentrated on Hazardous
Waste and Toxicology from Miami University.
Kelsey Dailey is a physical scientist with the U.S. EPA's Office of Water, Office of Groundwater and
Drinking Water, Standards and Risk Management Division, Unregulated Contaminant Monitoring Branch
in Cincinnati, Ohio, working on UCMR 5 with a focus on small system implementation and assisting with
rule development and outreach. She has participated in UCMR program activities since January 2021
when she first arrived at EPA as an Oak Ridge Institute for Science and Education (ORISE) research
fellow. Kelsey holds a B.S. in Geological Sciences from The Ohio State University and an M.S. in
Environmental Studies specializing in Hydrologic Sciences from the University of Colorado Boulder.
Paul Grimmett is a chemist with the U.S. EPA's Office of Water, Office of Ground Water and Drinking
Water's Standards and Risk Management Division (SRMD), working in programs such as the Drinking
Water Laboratory Certification Program and the Unregulated Contaminant Monitoring Rule (UCMR).
Prior to joining SRMD in 2015, Paul served as a research chemist at EPA's Office of Research and
Development for the previous nine years. His expertise is the research, development, and application of
analytical chemistry methods for use in the environmental field. Prior to his time at EPA, Paul was a
contract chemistry supervisor for an on-site EPA contractor. He received his Bachelors and Masters of
Science degrees from Marshall University.
Elizabeth Hedrick is a chemist with the U.S. EPA's Office of Water, Office of Groundwater and Drinking
Water, Standards and Risk Management Division, Unregulated Contaminant Monitoring Branch (UCMB)
in Cincinnati, Ohio. The UCMB develops and implements the Unregulated Contaminant Monitoring Rule.
Before joining the UCMB, she was a research chemist for 15 years in EPA's Office of Research and
Development where she authored journal articles, analytical methods, and methods manuals for the
analysis of contaminants in a variety of matrices. She later joined EPA's Office of Water, working in
water security where she developed laboratory and field guidance for drinking water utilities to respond
to contamination incidents. She has been in the UCMB for four years. Elizabeth has a BS in chemistry
and an MS in environmental science.
United States
Environmental Protection
Agency
Page 74 of 75
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Large Public Water Systems Implementation
Derek Losh has been an environmental engineer with the U.S. EPA's Office of Ground Water and
Drinking Water since 2004. For several years he worked in Washington, DC, providing analysis to support
regulatory decisions on drinking water contaminants. In 2007 he moved to U.S. EPA's Cincinnati office to
provide nation-wide assistance to small drinking water utilities to optimize existing treatment processes.
Now Derek works on the Unregulated Contaminants Monitoring Team, which is a program to monitor
unregulated contaminants in public drinking water systems across the country. He holds an M.S. in
environmental engineering from the University of Texas at Austin (2001) and became a licensed
professional engineer in 2003.
Melissa Simic has been a physical scientist for the U.S. EPA for 12 years. She is the Branch Supervisor for
the Unregulated Contaminant Monitoring Branch in the Office of Ground Water and Drinking Water. She
manages the development and implementation of UCMR, a national drinking water occurrence study for
contaminants of emerging concern. Melissa has a B.S. in Cell and Molecular Biology from Oklahoma
State University and a M.S. in Environmental Epidemiology, Exposure & Risk from Harvard University.
Jillian Toothman is a chemist with the U.S. EPA's Office of Water, Office of Ground Water and Drinking
Water, Standards and Risk Management Division, Unregulated Contaminant Monitoring Branch in
Cincinnati, Ohio, and is the current database manager for UCMR. Since 2008, she has served in various
technical capacities for the UCMR program including contract laboratory oversight, laboratory data
submission support and laboratory audits. In her role as the UCMR database manager, she manages the
overall design, development, implementation, maintenance and user support for the Safe Drinking
Water Accession and Review System (SDWARS) which is the data portal for all UCMR results.
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