A EPA

United States
Environmental Protection
Agency

The Fifth Unregulated Contaminant
Monitoring Rule (UCMR 5):
Small 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-22-004

November 2022


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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small Public Water Systems Implementation

The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5):
Small Public Water Systems Implementation

Public Meeting by Webinar

October 26, 2022
October 27, 2022 - repeated

Office of Ground Water and Drinking Water, Standards and Risk Management Division,

Unregulated 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 69


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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small Public Water Systems Implementation

Agenda (Eastern Time)

October 26

Topics

8:45-9:00am

12:45-l:00pm

Log in to the Meeting

9:00-9:05am

l:00-l:05pm

Welcome, Logistics, Agenda

9:05-9:25am

l:05-l:25pm

Overview of the UCMR Program

9:25-10:05am

l:25-2:05pm

Overview of UCMR 5

10:05-10:30am

2:05-2:30pm

UCMR 5 Contaminants, Analytical Methods, and Public Access to UCMR Data

10:30-10:45am

2:30-2:45pm

Break

10:45-10:50am

2:45-2:50pm

Q&A Received Via Chat Box

10:50-ll:20am

2:50-3:20pm

SDWARS and UCMR 5 Reporting Requirements

ll:20-ll:40am

3:20-3:40pm

UCMR 5 Small PWS Sampling Kits and Sample Collection

ll:40am-12:00pm

3:40-4:00pm

Q&A Received Via Chat Box

oEPA

U n ited States	Office of Water

Environmental Protection

Agency	slide 3 of 134

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."

*>EPA

United States
Environmental Protection
Agency

Office of Water

Page 2 of 69


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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small 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 changes, sampling locations, applicability (e.g., PWS merged
with another PWS(s), size category has changed, source water has
changed), seasonal sample points

•	UCMR@glec.com

•	For immediate assistance on sampling, sampling kits, shipping

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 134

Office of Water
Slide 6 of 134

Page 3 of 69


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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small Public Water Systems Implementation

General Meeting Information

Purpose

• Provide small public water systems (PWSs) (i.e., those serving 10,000 or fewer 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)

•	UCMR 5 small PWS sampling kits and sample collection
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 69


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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small 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 134

Office of Water
Slide 10 of 134

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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small 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 69


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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small 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

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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small 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 134



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/

WWW.nguhlloBS.gav.

FOR FURTHER INFORMATION CONTACT:

Bronda D. Bow don. Standards and Risk
Management Dtvtiion (SRMD), Office o(
Ground Water and Drinking Water
(OGWDW) (MS 1401, Envtronnwntal
Protection Agency. 26 West Martin
Lutha King Drive. Cincinnati. Ohio
45268: telephone number 1513) 5611-
7961: email address: howden brnndins
epu.gov. ot Mollssa Simlc. SRMD.
OCWDW (MS 140). Envlrtmmontal
Protection Agency. 2G West Martin
Luther King Drive. Cincinnati. Ohio
45268; telephone number: 1513) 560-
7864: email address: simic mvlissaH
epa.gov For general Information, visit
the Ground Water and Drinking Water
wob page at: httpsj/n-ww.opa.gov/
ground-woler-and-driii king-water.

it 1.2.3-TricMcrcpropano

B. Whal In the UCMR 5 sampling iliHlna?

1.	Thlป Final Rulo

2.	Summary of Mo^rCiirommiU and EPA

C. What 16 the sampling frequency and
liming.'

1.	This Final Rulo

2.	Summary of Matur Comments and EHA

vrhal 1ป ropnwnlntivn monHoring?
anal Rulo

i.irv ฆ"•f Mdinr C-imm-'nln ;.n,l 1.1'A

Office of Water
Slide 16 of 134

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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small 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 69


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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small 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 69


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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small 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

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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small 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 134

Office of Water
Slide 24 of 134

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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small 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 134

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 69


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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small Public Water Systems Implementation

Sampling and Statistical Design

•Sampling design has been vetted with stakeholders and peer-reviewed
• 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

oEPA

U n ited States	Office of Water

Environmental Protection

Agency	slide 27 of 134

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 69


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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small 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 134

Office of Water
Slide 30 of 134

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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small 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

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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small 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.

vvEPA

United States
Environmental Protection
Agency

Office of Water

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.

*>EPA

United States
Environmental Protection
Agency

Office of Water

Page 17 of 69


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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small Public Water Systems Implementation

All PWS Notifications

Notifications sent to ALL PWSs subject to UCMR 5 ("10,300) 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

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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small Public Water Systems Implementation

Small PWS Notifications

•	As described in the final UCMR 5, EPA's ability to support monitoring at all small PWSs serving 3,300 to
10,000 people depends on additional appropriations in fiscal years 2024 and 2025

•	EPA's current funding supports:

•	Monitoring at the representative national sample of 800 PWSs serving <3,300 people (PWSs notified of
confirmed participation)

•	Monitoring at ~400 randomly selected PWSs serving 3,300 to 10,000 people (PWSs notified of confirmed
participation)

•	Prioritizing these PWSs allows EPA to ensure a national random sample for small PWSs serving 210,000
people, irrespective of future appropriations

•	Monitoring at PWSs serving 3,300 to 10,000 people with sampling scheduled in 2023

•	These PWSs received the second notification either through SDWARS (if already registered), email, or
physical mailing the week of June 20, 2022

•	The remaining PWSs will be notified approximately 6 months prior to their scheduled sampling year to
confirm their participation (i.e., by July 1, 2023, for 2024 sampling and by July 1, 2024, for 2025 sampling)

pM United States

Environmental Protection
mI	Agency

Frequently Asked Question

Do the small PWSs have to pay for the monitoring if EPA does not
receive the necessary appropriations?

No. If EPA does not receive appropriations to support the full scope of UCMR
small system monitoring, EPA will reduce the scope of that monitoring for the
PWSs serving 3,300 to 10,000 people.

JL United States

Environmental Protection
IhI	Agency

Office of Water
Slide 37 of 134

Office of Water
Slide 38 of 134

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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small 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 Plans

•	Small PWSs may request that EPA modify their schedule by
contacting EPA's implementation contractor GLEC at the UCMR
Message Center at UCMR5@glec.com or 1-800-949-1581

United States	Office of Water

Environmental Protection

Agency	slide39of 134

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 40 of 134

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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small 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

United States
Environmental Protection
Agency

Office of Water

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)

Pre-sampling Activities by EPA,
States

Pre-sampling Activities by PWSs

PWSs register for a SDWARS account
to provide contact information,
sampling location inventory, shipping
address, Zip Code(s), and data
element responses

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

*>EPA

United States
Environmental Protection
Agency

Office of Water

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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small Public Water Systems Implementation

EPA Implementation Roles

•Small PWS support:

•	Maintain laboratory and implementation contracts to support UCMR

•	Compile contact and inventory information

•	Manage sample kit distribution and tracking

•	Fund costs associated with shipping and analyses

•	Engage PWSs and, in some cases, partnering States to collect samples

•	Coordinate sample analyses with contracted laboratories

•	Examine sample results along with quality control (QC) data and make results available to
the respective State and PWS via SDWARS

•	Report data to NCOD

pM United States

Environmental Protection
mI	Agency

EPA Implementation Roles

•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

JL United States

Environmental Protection
IhI	Agency

Office of Water
Slide 43 of 134

Office of Water
Slide 44 of 134

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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small Public Water Systems Implementation

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

oEPA

U n ited States	Office of Water

Environmental Protection

Agency	slide 45 of 134

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

•	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.

*>EPA

United States
Environmental Protection
Agency

Office of Water

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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small Public Water Systems Implementation

Small PWS Responsibilities

•	Register for a SDWARS account

•	Complete pre-sampling activities in SDWARS by December 31, 2022

•	Collect and ship samples according to the monitoring schedule in
SDWARS using the sampling kits and materials provided by EPA

oEPA

U n ited States	Office of Water

Environmental Protection

Agency	slide 47 of 134

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

*>EPA

United States
Environmental Protection
Agency

Office of Water

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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small Public Water Systems Implementation

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

pM United States

Environmental Protection
mI	Agency

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

JL United States

Environmental Protection
IhI	Agency

Office of Water
Slide 49 of 134

Office of Water
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small Public Water Systems Implementation

UCMR 5 Contaminants: 29 PFAS + Lithium

EPA Method 533 (PFAS monitored under UCMR 3 are in bold)

1H, 1H, 2H, 2H-perfluorodecane sulfonic acid 9-chlorohexadecafluoro-3-oxanone-l-sulfonic 4,8-dioxa-3H-perfluorononanoic acid
(8:2 FTS) acid (9CI-PF30NS) (ADONA)

Perfluorohexanoic acid (PFHxA)

1H, 1H, 2 H, 2 H-perfluorohexane sulfonic acid „ f, , Hexafluoropropylene oxide dimer acid

K Perfluorobutanoic acid (PFBA) i„rnซ ป l. • .ป>
(4:2 FTS) (HFPO-DA) ( GenXchemical )

Perfluorohexanesulfonic acid (PFHxS)

1H, 1H, 2H, 2H-perfluorooctane sulfonic acid _ ^

pjgj Perfluoroheptanesulfonic acid (PFHpS) Perfluorobutanesulfonic acid (PFBS)

Perfluorononanoic acid (PFNA)

Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) Perfluoropentanesulfonic acid (PFPeS) Perfluorodecanoic acid (PFDA)

Perfluorooctanesulfonic acid (PFOS)

Perfluoro (2-ethoxyethane) sulfonic acid „ „ „ r. . . . . „,
(PFEESA) Perfluoropentanoic acid (PFPeA) Perfluorododecanoic acid (PFDoA)

Perfluorooctanoic acid (PFOA)

r. ~ ll-chloroeicosafluoro-3-oxaundecane-l- _ , . ......... ,,

Perfluoro-3-methoxypropanoic acid (PFMPA) sulfonic acid (11CI PF30UdS) Perfluoroheptanoic acid (PFHpA)

Perfluoroundecanoic acid (PFUnA)

| Perfluoro-4-methoxybutanoic acid (PFMBA)

PFAS Analytes Unique to EPA Method 537.1

N-ethyl perfluorooctanesulfonamidoacetic N-methyl perfluorooctanesulfonamidoacetic „ fl .

- . Perfluorotetradecanoic acid (PFTA)
acid (NEtFOSAA) acid (NMeFOSAA)

Perfluorotridecanoic acid (PFTrDA)

EPA Method 200.7 or Alternate SM 3120 B or ASTM D1976 20

1 1 ithium

JV United States

Environmental Protection
mI M * Agency

Office of Water
Slide 51 of 134



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 |ig/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 |ig/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
^#^1 M ปAgency

Office of Water
Slide 52 of 134

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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small Public Water Systems Implementation

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_ . .it 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 Advisorv: Hexafluoropropvlene 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



United States
Environmental Protection
Agency

Office of Water
Slide 53 of 134

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 |ig/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

0.005 |ig/L

EPA Integrated Risk Information System (IRIS) assessment in
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

United States
Environmental Protection
^#^1 M ปAgency



Office of Water
Slide 54 of 134

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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small Public Water Systems Implementation

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 |lg/L

No EPA health assessment

perfluoroheptanoic acid (PFHpA)



375-85-9

0.003 |lg/L

No EPA health assessment

perfluorohexanesulfonic acid (PFHxS)



355-46-4

0.003 |ig/L

ATSDR2: Minimal Risk Level = 0.00002 mg/kg-day
(intermediate duration); drinking water concentrations = 0.517
|ig/L (adult) and 0.140 |ig/L (child)

EPA IRIS assessment in process3

1PFDA IRIS assessment in process

2 Agency for Toxic Substances and Disease Registry (ATSDR), 2021:

3PFHxS IRIS assessment in process

"Toxicological Profile for Perfluoroalkyls"



1









JV United States

Environmental Protection
mI M * Agency





Office of Water
Slide 55 of 134



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 |lg/L

EPA IRIS assessment in process1

perfluorononanoic acid (PFNA)



375-95-1

0.004 |lg/L

ATSDR2: Minimal Risk Level = 0.000003 mg/kg-day
(intermediate duration); drinking water concentrations =
0.078 |ig/L (adult) and 0.021 |ig/L (child)

EPA IRIS assessment in process3

perfluoropentanesulfonic acid (PFPeS)



2706-91-4

0.004 |lg/L

No EPA health assessment

perfluoropentanoic acid (PFPeA)



2706-90-3

0.003 |ig/L

No EPA health assessment

perfluoroundecanoic acid (PFUnA)



2058-94-8

0.002 |lg/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

JL United States

Environmental Protection
kl Agency





Office of Water
Slide 56 of 134

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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small Public Water Systems Implementation

Per- and Polyfluoroalkyl Substances (PFAS)

EPA Method 533 (SPE LC/MS/MS)
Location: EPTDS

Analyte	CASRN	MRL	Health Information

EPA Lifetime Health Advisory (interim)1: 0.00002 ug/L
Draft Chronic RfD = 7.9 x 10~9 mg/kg-day

perfluorooctanesulfonic acid (PFOS)	1763-23-1	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 |ig/L (child)

EPA Lifetime Health Advisory (interim)4: 0.000004 |ig/L
Draft Chronic RfD = 1.5 x 10~9 mg/kg-day

perfluorooctanoic acid (PFOA)	335-67-1	0.004 |ig/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 nง/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 re evaluation 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

JV United States

Environmental Protection
mI M * Agency

Office of Water
Slide 57 of 134



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-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)

2355-31-9 0.006 |ig/L No EPA health assessment

perfiuorotetradecanoic acid (PFTA)

376-06-7 0.008 |ig/L No EPA health assessment

perfluorotridecanoic acid (PFTrDA)

72629-94-8 0.007 H-g/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

JL United States

Environmental Protection
IhI M m Agency

Office of Water
Slide 58 of 134

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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small 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

&EPA

U nited States	ฐffice ฐf Water

Environmental Protection

Agency	slide 60 of 134

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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small Public Water Systems Implementation

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/svstem/files/documents/2022-
06/drinking-water-ha-pfas-factsheet-water-system.pdf

•	Fact Sheet for Communities: https://www.epa.gov/svstem/files/documents/2022-
06/drinking-water-ha-pfas-factsheet-communities.pdf

pM United States

Environmental Protection
mI	Agency

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

JL United States

Environmental Protection
IhI	Agency

Office of Water
Slide 61 of 134

Office of Water
Slide 62 of 134

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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small Public Water Systems Implementation

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

vvEPA

U n ited States	Office of Water

Environmental Protection

Agency	slide 63 of 134

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

*>EPA

United States
Environmental Protection
Agency

Office of Water

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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small Public Water Systems Implementation

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

v>EPA

United States
Environmental Protection
Agency

Office of Water



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Office of Water
Slide 66 of 134

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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small 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 changes, sampling locations, applicability (e.g., PWS merged
with another PWS(s), size category has changed, source water has
changed), seasonal sample points

•	UCMR@glec.com

•	For immediate assistance on sampling, sampling kits, shipping

pM United States

Environmental Protection
mI	Agency

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

United States
Environmental Protection
Agency

Office of Water
Slide 67 of 134

Figure 1



Figure 2



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Office of Water
Slide 68 of 134

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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small Public Water Systems Implementation

Questions and Answers Received in Question Box

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

vvEPA

U nited States	office ฐf Water

Environmental Protection

Agency	slide 70 of 134

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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small Public Water Systems Implementation

Overview

•SDWARS 5

•Central Data Exchange (CDX) account
•Small PWS workflow

•	Notification letter

•	Updating contact/inventory/schedule/Zip Codes
• Reporting requirements and data elements
•Timing of reporting

pM United States

Environmental Protection
mI	Agency

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.

JL United States

Environmental Protection
IhI	Agency

Office of Water
Slide 71 of 134

Office of Water
Slide 72 of 134

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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small Public Water Systems Implementation

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

pM United States

Environmental Protection
mI	Agency

SDWARS Workflow for Small PWSs - Overview

• Complete Pre-Sampling Activities Before December 31, 2022

•	Step 1: Log in to CDX

•	Step 2: Select SDWARS 5 and accept your PWS's UCMR 5 notification letter

•	Step 3: Review/edit sample locations

•	Step 4: Confirm/add physical shipping address for sampling kits (not a P.O. Box)

•	Step 5: Add/edit Zip Code(s) served

•	Step 6: Review sampling schedule

•	Step 7: Respond to specific UCMR 5 data elements

•	Step 8 (optional): Nominate additional user(s) for your PWS

SDWARS 5 Walkthrough Video for Small PWSs

Includes additional information for completing your pre-sampling activities in SDWARS
https://www.voutube.com/watch?v=2gacQ4Gle7l

JL United States

Environmental Protection
IhI	Agency

Office of Water
Slide 73 of 134

Office of Water
Slide 74 of 134

Page 37 of 69


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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small Public Water Systems Implementation

1. Log in to CDX

COX; Central Data Exchange



https://cdx.epa.gov/

Log in to CDX

ฆ Show Password
Log In Register with CDX

Forgot your Password?

Forgot your User ID?

Warning Notice and Privacy Policy

v>EPA

United States
Environmental Protection
Agency

Office of Water

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

•	Contains additional details about UCMR 5 monitoring and reporting requirements

• Status of acceptance of notification is tracked in SDWARS 5

•	You can download or print the letter to keep as a record

vvEPA

U nited States	ฐffice ฐf Water

Environmental Protection

Agency	slide 76 of 134

Page 38 of 69


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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small Public Water Systems Implementation

2a. Select SDWARS 5

t/u n United States Environmental Protection Agency
Home About Recent Announcements Terms and Conditions FAQ Help Virtual Assistant

CD)fr Central Data Exchange

S Contact Us

Logged in as JSHUTSON (Log out)

MyCDX

Inbox

My Profile

Reg Maint

Submission History

Payment History

Status Program Service Name

Role "ฆ

&

UCMR4: Unregulated Contaminants Monitoring Rule 4

SDWARS4

a

UCMR5: Unregulated Contaminants Monitoring Rule 5

SDWARS5

CDX Service Availability

See the status for all program services

News and Updates

No news/updates.

v>EPA

United States
Environmental Protection
Agency

Office of Water
Slide 77 of 134

2b. Proceed to Notification Letter

CDX- Central Data Exchange

iix^ jMyProfile j1 Subm

s

Status

' Prociram Service Nai



&

UCMR4: Unregulated 0

&

UCMR5: Unregulated G



Application Profile Settings
Organization Name
PWS Name

Program Client ID
PWS Identification Number

Program

UCMR5

Proceed H Cancel

Logged in as SHOMANSC (LGgjM)

X Service Availability

Itus fqr all Riagrgm services

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.

vปEPA

United States
Environmental Protection
Agency

Office of Water
Slide 78 of 134

Page 39 of 69


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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small Public Water Systems Implementation

2c. Read and Accept Notification Letter

	ซ i wi l-ua jjij lyyisudiiuii isbuyb p.ddsy l.0i.

• For general questions about requirements or naviga

Thank you in advance for your cooperation

Accept Cancel

*

Notification Letter

v>EPA

United States
Environmental Protection
Agency

Office of Water

3. Review/Edit Inventory

INVENTORY SCHEDULE/DATA ELEMENTS REVIEW DATA SHIPPING A0ORESSES ZIP COOES

Inventory

) Please ensure ail required sample locations lot UCMR S are included in your inventor/ beloiv This includes an entry pouts to the

In some cases your Stalejfnmacy Agency provided Inventory on youi behalf Please review each sample location below To edit facility and sample point name dick the Pencil Icon on
the far-nght side of the page After reviewing your inventory please select a response under the Correct? drop-down menu If Active Location7 Fac ID Fac Type Water Type. SP10
and/or SP Type needs to be edited please select No, it is not from the Correct7 drop-down menu lot a location and select Save Please contact the UCMR Message Center at
UCMR5@giec com Of l-300-94ft.tS81 for assistance with completing your corrections and'or additions

Important: if I lie sampling location information is correct please select Yes, this is correct from the Coned? dropdown menu and select Save so EPA knows you have lewewed fiat

To download or print the inventory M use the icons next to (he Filter st

Fac ID Fac Name Fac Type Water Type

SP Type Correct?

No

OOOOt EPfGW 001 TP

GW

SPOOOOt Sample Poinl for EP/GW 001

EP

v|

/

Yes

00002 EP/SW002 SS

sw

SP00002 Sample Point for EP/SW 002

EP

VI

~

Identify/confirm all entry points to your
distribution system (EP)

Review your pre-populated EP locations
using information provided by your
State/Primacy Agency to EPA in late 2021
Edit facility and sample point (SP) names,
if necessary

Using the fields provided, mark whether
each location information is
correct/incorrect

If information is incorrect for a location, or
your PWS does not have pre-populated
locations, contact the UCMR Message
Center at UCMR5@glec.com or 1-800-
949-1581 for assistance

vปEPA

United States
Environmental Protection
Agency

Office of Water

Page 40 of 69


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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small Public Water Systems Implementation

3. Review/Edit Inventory

Review Inventory

Active J
Location? Fac ID

Fac Type Water Type

SP Type Correct?

No

00001 EP/GW 001

TP

GW

SP00001 Sample Point for EP/GW 001

EP

i Yes this is correct v j

Id

Yes

00002 EP/SW 002

ss

SW

SP00002 Sample Point for EP/SW 002

EP

INo this is not v |



Showing 1 to 2 of 2 entries

Edit Inventory

is

Active li

Location? Fac ID Fac Name

1 j^jERGW^T

u

Fac Type Water Type SP ID

SP Type Correct?

No	00001 1

Yes	00002 EP/SW002

Showing 1 to 2 of 2 entries

TP

GW

SP00001 [Sample Point for EP/GV|

EP

! Yes. this is correct v

SP00002 Sample Point for EP/SW 002

I No. this is not >T|

v>EPA

United States
Environmental Protection
Agency

Office of Water
Slide 81 of 134

Page 41 of 69


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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small Public Water Systems Implementation

4. Confirm/Add Physical Shipping Address for Sampling Kits



Add Shipping Address

O You must complete every field marked wflfi an (*) You must cScfc Save for the
information to be added to the database

Is Preferred?' Yes

Attention
Street, line 1'

Suite'Rm/F loot
Street, line 2

• Do not use a P.O. Box



State* v

Zip Code'

Telephone

(SS-SPWS-106Oa)^^J Ctose



jy United States

Environmental Protection
M ปAgency

Office of Water
Slide 83 of 134

5. Add/Edit Zip Code(s) Served

Zip Codes

it reoured to add sp codes) associated with ail customers in your sefw* area
i selected up codes

To finer enter a specific ap code in the fitter search do* or enter a partial ap code (e g Searching *123" Ml
To download or print the bst 01ap codes use the icons next to the fillet search box
Use the Super PWS search Do* to manage Zip Codes for ycu downstream PWSs
Super PWS

PWSID -ZipCodes

No data available in table

mMsp codes that contain 123)

vปEPA

United States
Environmental Protection
Agency

Add Zip Codes associated with all

customers served by your PWS

Click "Add Zip Codes" for pop-up window

ฉ You can copy.paste or manuafly enter a comprehenswe list of ap codecs; wfflWi
the ap code Seid A ap code MUST be a five-digit minuet The ap codecs) w* be
venfied agaซ!st a lust of valid USPS ap codes (as of December 2021) Maapcode(s)
is Bagged mate sure it a correct before adding 1 You must thck Add Zip Codefs) for
the apcodert) to be added to the database

Zip Codes can be
copy/pasted or typed

Office of Water
Slide 84 of 134

Page 42 of 69


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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small 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

6. Review Sampling Schedule

•	EPA initially drafts PWS schedule

•	Partnered State had opportunity to review and modify

•	Small PWSs must request EPA approval for any schedule changes

• Please contact the UCMR Message Center at UCMR5@glec.com or
1-800-949-1581 for assistance

ฃ\	United States

Environmental Protection
IhI	Agency

Office of Water
Slide 85 of 134

Office of Water
Slide 86 of 134

Page 43 of 69


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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small Public Water Systems Implementation

6. Review Sampling Schedule

Schedule

> PWS Home Schedule

Q For surface water (SW). ground water under the direct influence of surface water (GU) and mixed locations (MX) sampling should take place for four consecutive quarters over the
course of 12 months (for a total of 4 sampling events) These sampling events should occur three months apart For ground water (GW) locations sampling should take place twice
over the course of 12 months (for a total of 2 sampling events) These sampling events should occur five to seven months apart

You must have EPA approval for any schedule changes please contact the UCMR Message Center at UCMR5@gtec com or 1-800-949-1581 for assistance

You are required to respond to five (5) Data Elements Please select the drop-down menu on the Mo nth'Year schedule for Sampling Event 1 (SE1) for each location and respond to
each Data Element To select the same response for other SEs for that location, select the Data Element for the SE you want to complete and a question will prompt you to select a
response from another SE The exclamation point button next to the Filter search box will highlight the SEs where one or more Data Elements is missing

To sort schedule, use the individual headers by clicking on them (e g , Facility ID Faciity Name Sample Point ID etc.) or filter for schedule using the Filter search box To filler enter a
specrfic identifier (e.g.. sample point ID. Facility ID) in the Filter search box or enter a partial identifier 
-------
The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small Public Water Systems Implementation

7. Select Responses for UCMR 5 Data Elements

ฉ

Edit Disinfectant Types

All of the disinfectants/oxid ants that have been added prior to and at the entry potnt to
the distribution system Please select all that apply

~	CAGC Chlorarrwie (formed with gaseous chlorine)

D CAOF Chlorarmne (formed with off site hypochlorite)

~	CAON Chloranwe (formed with onsite hypochlorite)

~	CLDB Chlorine dioxide

~	CLGA Gaseous chlonne

~	CLOF Offsite generated hypochlorite (stored as a bquid form)

~	CLON Onsite generated hypochlorite

~	HPXB Hydrogen peroxide

~	OZON Ozone

~	PEM8 Permanganate

~	ULVL Ultraviolet hght

~	OTHD: AB other types of disinfectant/oxidant

~	NODU No dismfectant'oxidant used

(SS-SPWS-1030c) I

ฉ

Eat Historical Information for Lithium Detections and Treatment

Edit Historical Information for PFAS Detections and Treatment

(SS-SPWS-10 JOei I

Edit Potential PFAS Sources

Pnor to moratonrg for UCMR 5. were you aware or any potential c
historical sources of PFAS thai may have impacted (he drinking w.

water system7	

ฉ

v>EPA

United States
Environmental Protection
Agency

Office of Water

8. 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

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

vปEPA

United States
Environmental Protection
Agency

Office of Water

Page 45 of 69


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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small Public Water Systems Implementation

8. 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*

United States
Environmental Protection
M ปAgency

8. 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
EPA-PWS-998000019 n

Address Department - PWSID

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 91 of 134

Page 46 of 69


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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small Public Water Systems Implementation

PWS Home Page and Checklist



PWS Home

O Use the tabs at the top of the page to access Inventory, Schedule/Data Elements. Shipping Address, ana Zip Codes

Use the person icon in the upper right comet to Nominate User view the Notification Letter view the SOWARS 5 Sitemap go to MyCOX go to Inbox or Logout

Use the Completion Checklist to view your status on compiling your reporting requirements The buttons under Action will alow you to view your Signed Notification Letter edit
Inventory review Shipping Address add Zip Codes and mput Data Elements

ICRS: 202111-2040-003
OMBS: 2040-0304

PWS 10: 996000011
PWS Name: Test PWS #8-011
System Sue: < 10.000
Monitoring Requirements: AM





Completion Checklist

Dataset Status Action
Signed Notification Letter Is Signed





Inventory Has Data
Shipping Address Has Data
Zip Codes MISSING

Data Elements MISSING Q



v>EPA

United States
Environmental Protection
Agency

Office of Water

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)

• Small PWSs who completed their data elements prior to their sampling
year will receive a reminder to reconfirm or update responses

vปEPA

United States
Environmental Protection
Agency

Office of Water

Page 47 of 69


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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small Public Water Systems Implementation

PWS Name

System Size: small (< 3,300)

Nominate User
Notification Letter

I Need Help?
g SDWARS5 Sitemap

MyCDX
Inbox

Logout

~

SDWARS Sitemap

SDWARS5 Small PWS Functionality

Notification
Letter

I L 1 I L 1

Contacts

I



Inventory

1



Schedule

1

View
Contact
Details



View PWS
Inventory



View
Comments

Schedule	Review Data	Zip Code

Nominate
User

SDWARS5
Sitemap

Note: User must accept
Notification Letter to access
any of the functionality

ViewQC	VlewSE

Results	Schedule

v>EPA

United States	Office of Water

Environmental Protection

Agency	slide 95 of 134

Small System Reporting ง141.35(d)

•	Contact and Zip Code information

•	SDWARS by December 31, 2022

•	Sampling location information

•	SDWARS by December 31, 2022

•	Data elements

•	PWSs must report all data elements specified in ง141.35(e) Table 1 in SDWARS

•	Analytical results

•	Uploaded to SDWARS by EPA's contracted laboratory

•	Reviewed by EPA in SDWARS

•	Small PWSs and States will have access to results via SDWARS

vปEPA

United States
Environmental Protection
Agency

Office of Water

Page 48 of 69


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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small Public Water Systems Implementation

Reporting Data Elements ง141.35(e)

Data Elements Reviewed by Small PWS
Before Sampling Begins

Data Elements Confirmed by Small PWS
at Each 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

•	PWSs will reconfirm or update responses to data elements 10, 11, 26, and 27 in SDWARS 5 at each sample collection

•	If you have questions or need assistance providing the data elements listed above, please contact the UCMR
Message Center at UCMR5(5)glec.com or 1-800-949-1581

United States	Office of Water

Environmental Protection

Agency	slide97of 134

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

NODU = No disinfectant/oxidant used |

United States
Environmental Protection
^#^1 M ปAgency

Office of Water
Slide 98 of 134

Page 49 of 69


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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small 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

oEPA

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 99 of 134

Page 50 of 69


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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small Public Water Systems Implementation

Timing of Reporting for Small PWSs

Per contracts with EPA, laboratories supporting analysis of
samples from small PWSs post results to SDWARS within 60 days
of sample collection

EPA will review, pay for, and approve the small PWS data

• Viewable to PWS, State, and EPA in SDWARS
SDWARS 5 PWS users will get a notification when analytical
results are posted

*>EPA

United States
Environmental Protection
Agency

Office of Water

Slide 102 of 134

Page 51 of 69


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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small 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 104 of 134

Page 52 of 69


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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small Public Water Systems Implementation

UCMR 5 Small PWS Sampling Kits
and Sample Collection

Paul Grimmett, U.S. EPA
Office of Ground Water and Drinking Water
Standards and Risk Management Division
Unregulated Contaminant Monitoring Branch

United States	Office of Water

Environmental Protection

^#^1	Agency	slide 105 of 134

Overview



•Sampling Kits and Additional Information



•Monitoring Review Sheets



•UCMR 5 Sampling Instructions and Video



• Collection, packing, shipping, and Frequently Asked Questions (FAQs)

•Tips for reducing cross-contamination



•Sample Tracking Forms



United States
Environmental Protection
vm Agency

Office of Water
Slide 106 of 134

Page 53 of 69


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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small Public Water Systems Implementation

Sampling Kits and Additional Information

•	EPA's implementation contractor, GLEC, ships sampling kits using the PWS shipping address
and inventory information provided or confirmed by the PWS in SDWARS, or obtained
through Monitoring Review Sheets (MRSs)

•	Sampling kits include:

•	Labeled sampling bottles in zip lock bags

•	Ice packs

•	Nitrile gloves

•	Prepaid shipping labei

•	Sampling instructions and tips for reducing cross-contamination (See slides 110-116)

•	Sample Tracking Form to complete and ship with the samples (See slides 117-118)

•	Sampling kit materials were tested during kit design to rule out PFAS contamination

jy United States

Environmental Protection
M ปAgency

Monitoring Review Sheets

• In June and July 2022, GLEC mailed Monitoring
Review Sheets (MRSs) to small PWSs scheduled
to monitor in 2023 that still do not have a
SDWARS account

•	MRSs allow GLEC to confirm or obtain a shipping
address and inventory information

•	Please fill out the form in the enclosed envelope
and return to GLEC or email the information to
MRS@GLEC.com

United States
Environmental Protection
M % Agency

Page 54 of 69

if n ฃ3

Office of Water
Slide 107 of 134

Unregulated Contaminant Monitoring Rule (UCMR5)

>110 URS&QIEC com OyVJinoM

h* WwgwvMt'K:! FMndryaMAugml

EPTซซ Halm

GleC

M MRSCOLEC com trfin*. V pnen* (Mil W

Office of Water
Slide 108 of 134


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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small 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

The instructions are printed out and placed in the
sampling kits to assist samplers

• Please follow the instructions included with each kit
EPA is recording a YouTube training video that walks
through sample collection

For immediate assistance on sampling, sampling kits, and
shipping, contact UCIVIR@glec.com or 231-525-0521

SAMPLING
INSTRUCTIONS

(oRAFn

vvEPA Unregulated Contaminant Monitoring I

vvEPA

United States
Environmental Protection
Agency

Office of Water

Slide 109 of 134

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 110 of 134

Page 55 of 69


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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small 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

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*

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 112 of 134

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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small 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 113 of 134

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 Small Public Water Systems Implementation

Tips for Reducing Cross-Contamination 
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small Public Water Systems Implementation

Water System Name: Central Waterworks, Inc.
Collection Location: EPTDS05 Treatment Plant
Collection Date: Monday or Tuesday as soon as possible.

THIS IS A RESAHPIE KIT.

%

Make sure freezer packs are frown solid prior to collection (at least 72 hours in a freezer).

Cool samples in a refrigerator prior to packing; overnight is preferable.

Pack kit just prior to FedEx pickup and keep in a cool place.

~ Sampler Name (Print)

v>EPA

United States
Environmental Protection
Agency

Sample Tracking Form
(Resample Kit Example)

•	Printed ori pink paper

•	Follow rioted proactive measures for
resample collection and shipping

•	Complete and ship with the resamples

Office of Water

Slide 117 of 134

Closing Remarks

Thank you for attending this UCMR 5 webinar

vvEPA

United States
Environmental Protection
Agency

Office of Water

Slide 118 of 134

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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small Public Water Systems Implementation

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

pM United States

Environmental Protection
mI	Agency

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 Small PWSs

•	https://youtu.be/2gacQ4Gle7l

•	Safe Drinking Water Information

•	https://www.epa.gov/ground-water-and-drinking-water/safe-drinking-water-information

JL United States

Environmental Protection
IhI	Agency

Office of Water
Slide 119 of 134

Office of Water
Slide 120 of 134

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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small Public Water Systems Implementation

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

UCMR Small PWS Sampling Hotline

•	For immediate assistance on sampling (e.g., sample kits, shipping), UCMR@glec.com or 231-525-0521
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

vvEPA

United States
Environmental Protection
Agency

Office of Water

Slide 121 of 134

Accessing the UCMR 5 Docket

Go to https://www.regulations.gov and enter Docket ID EPA-HQ-OW-2020-0530

What's New on Regulations.gov

Direct link to docket: https://www.regulations.gov/docket/EPA-HQ-OW-2020-0530

*>EPA

United States
Environmental Protection
Agency

Office of Water

Slide 122 of 134

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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small Public Water Systems Implementation

Accessing the UCMR 5 Docket

The UCMR 5 docket should pop up on the next screen

REFINE OOCKETS RESULTS ฉ	SEARCH RESULTS	SORT BY Best Match-

[J RULEMAKING

Revisions to the Unregulated Contaminant Monitoring Rule (UCMR 5) for Public Water Systems

Aflency Eirmonmental Protection Agency Docket ID EPA-HQ-OW-2020-05M

United States
Environmental Protection
M ปAgency

Accessing the UCMR 5 Docket

Browse documents and comments using the tabs





ฆ Docket Details

= Unified Agenda f ฆ Browse Documents 66 ) { ฆ Browse All Comments 78 )





—y

<9

Docket ID

Abstract



EPA-HQ-OW-2020-0530

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 be present in drinking water but that do not have health-based standards set
under the Safe Drinking water Act (SDWA) UCMR 5 provides the EPA and other interested parties with scientifically valid data on the
occurrence of selected contaminants In dnnking 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

(J) Number of Comments Posted to
this Docket

78

More Details -

JV United States

Environmental Protection
M % Agency

Office of Water
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Office of Water
Slide 124 of 134

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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small 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 wiil be answered after the
break and at the end

Figure 1

Figure 2

v>EPA

United States
Environmental Protection
Agency

Office of Water
Slide 125 of 134

Questions and Answers Received in Question Box



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United States
Environmental Protection
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Office of Water
Slide 126 of 134

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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small Public Water Systems Implementation

vvEPA

United States
Environmental Protection
Agency

Office of Water

Slide 127 of 134

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

&EPA

U nited States	ฐffice ฐf Water

Environmental Protection

Agency	slide 12s of 134

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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small Public Water Systems Implementation

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

•	GenX - Trade Name for a Technology Used to Make High-Performance
Fluoropolymers Without the Use of PFOA

•	Health Canada - Health Canada Guidelines for Canadian Drinking Water Quality

•	HFPO-DA- Hexafluoropropylene Oxide Dimer Acid

•	ICP-AES - Inductively Coupled Plasma-Atomic Emission Spectrometry

oEPA

U n ited States	Office of Water

Environmental Protection

Agency	slide 129 of 134

Abbreviations and Acronyms

•	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

•	MRS - Monitoring Review Sheet

•	NCOD - National Contaminant Occurrence Database

•	NDAA- National Defense Authorization Act

*>EPA

United States
Environmental Protection
Agency

Office of Water

Slide ISO of 134

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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small Public Water Systems Implementation

Abbreviations and Acronyms



• 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



• PFBS - Perfluorobutanesulfonic Acid



• PFDA - Perfluorodecanoic Acid



JV United States

Environmental Protection
mI Agency

Office of Water
Slide 131 of 134

Abbreviations and Acronyms



• 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



• PFOA - Perfluorooctanoic Acid



• PFOS- Perfluorooctanesulfonic Acid



United States
Environmental Protection
^#^1 M ปAgency

Office of Water
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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small Public Water Systems Implementation

Abbreviations and Acronyms

•	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

•	QC - Quality Control

•	RfD - Reference Dose

oEPA

U n ited States	Office of Water

Environmental Protection

Agency	slide 133 of 134

Abbreviations and Acronyms

•	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

*>EPA

United States
Environmental Protection
Agency

Office of Water

Slide 134 of 134

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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small 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

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The Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) - October 2022 Small 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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