Expedited Approval of Alternative Test Procedures for the Analysis of Contaminants Under the Safe Drinking Water Act; Analysis and Sampling Procedures, 50575-50584 [2022-17651]
Download as PDF
Federal Register / Vol. 87, No. 158 / Wednesday, August 17, 2022 / Rules and Regulations
Paperwork Reduction Act
This final rule includes provisions
constituting a revised collection of
information under the Paperwork
Reduction Act of 1995 (44 U.S.C. 3501–
3521) that require approval by the Office
of Management and Budget (OMB).
Accordingly, under 44 U.S.C. 3507(d),
VA has submitted a copy of this
rulemaking action to OMB for review
and approval. OMB has reviewed and
approved this revised collection of
information and assigned OMB control
number 2900–0365.
Congressional Review Act
Pursuant to the Congressional Review
Act (5 U.S.C. 801 et seq.), the Office of
Information and Regulatory Affairs
designated this rule as not a major rule,
as defined by 5 U.S.C. 804(2).
List of Subjects in 38 CFR Part 38
Administrative practice and
procedure, Cemeteries, Claims, Crime,
Veterans.
Signing Authority
Denis McDonough, Secretary of
Veterans Affairs, approved this
document on August 10, 2022, and
authorized the undersigned to sign and
submit the document to the Office of the
Federal Register for publication
electronically as an official document of
the Department of Veterans Affairs.
Luvenia Potts,
Regulation Development Coordinator, Office
of Regulation Policy & Management, Office
of General Counsel, Department of Veterans
Affairs.
For the reasons set forth in the
preamble, VA amends 38 CFR part 38 as
set forth below:
PART 38—NATIONAL CEMETERIES
OF THE DEPARTMENT OF VETERANS
AFFAIRS
1. The authority citation for part 38
continues to read as follows:
■
Authority: 38 U.S.C. 107, 501, 512, 2306,
2402, 2403, 2404, 2407, 2408, 2411, 7105.
■
2. Revise § 38.621 to read as follows:
JSPEARS on DSK121TN23PROD with RULES
§ 38.621
Disinterments.
(a) Interments of eligible decedents in
national cemeteries are considered
permanent and final. Disinterment will
be permitted only for cogent reasons
and with the prior written authorization
of the National Cemetery District
Executive Director or Cemetery Director
responsible for the cemetery involved.
Disinterment from a national cemetery
will be approved only when:
(1) A court order or State
instrumentality of competent
jurisdiction directs the disinterment; or
VerDate Sep<11>2014
16:10 Aug 16, 2022
Jkt 256001
(2) All living immediate family
members of the decedent, and the
individual who initiated the interment
(whether or not the individual is a
member of the immediate family), give
their written consent.
(i) If the individual who initiated the
interment does not consent, or is not
alive to provide consent, or all living
immediate family members are not in
agreement, anyone seeking disinterment
of an eligible decedent must provide VA
with an order from a court or State
instrumentality of competent
jurisdiction to direct the disinterment as
provided in paragraph (a)(1) of this
section.
(ii) For purposes of this section,
‘‘immediate family members’’ are
defined as surviving spouse, whether or
not he or she is or was remarried; all
adult children of the decedent; the
appointed guardian(s) of minor
children; and the appointed guardian(s)
of the surviving spouse or of the adult
child(ren) of the decedent. If the
surviving spouse and all of the children
of the decedent are deceased, the
decedent’s parents will be considered
‘‘immediate family members.’’
(b)(1) All requests to disinter remains
as described in paragraph (a)(2) of this
section must be submitted on VA Form
40–4970, Request for Disinterment, and
must include the following information:
(i) A full statement of reasons for the
proposed disinterment.
(ii) Notarized statement(s) by all
living immediate family members of the
decedent, and by the person who
initiated the interment (whether or not
the individual is a member of the
immediate family), that all parties
consent to the proposed disinterment.
(iii) A notarized statement by the
person requesting the disinterment that
those who supplied affidavits comprise
all the living immediate family members
of the deceased and the individual who
initiated the interment.
(2) If the person provides a false
certification on VA Form 40–4970, he or
she may be subject to penalties, to
include fine or imprisonment or both.
(c) Any VA-approved disinterment in
this section must be accomplished
without expense to the Government.
(The reporting and recordkeeping
requirements contained in paragraph (b) of
this section have been approved by the Office
of Management and Budget under OMB
control number 2900–0365)
(Authority: 38 U.S.C. 2404)
[FR Doc. 2022–17637 Filed 8–16–22; 8:45 am]
BILLING CODE 8320–01–P
PO 00000
Frm 00023
Fmt 4700
Sfmt 4700
50575
ENVIRONMENTAL PROTECTION
AGENCY
40 CFR Part 141
[EPA–HQ–OW–2022–0407; FRL–9834–01–
OW]
Expedited Approval of Alternative Test
Procedures for the Analysis of
Contaminants Under the Safe Drinking
Water Act; Analysis and Sampling
Procedures
Environmental Protection
Agency (EPA).
ACTION: Final rule.
AGENCY:
This action announces the
Environmental Protection Agency’s
(EPA’s) approval of alternative testing
methods for use in measuring the levels
of contaminants in drinking water to
determine compliance with national
primary drinking water regulations. The
Safe Drinking Water Act authorizes EPA
to approve the use of alternative testing
methods through publication in the
Federal Register. EPA is using this
streamlined authority to make seven
additional methods available for
analyzing drinking water samples. This
expedited approach provides public
water systems, laboratories, and
primacy agencies with more timely
access to new measurement techniques
and greater flexibility in the selection of
analytical methods, thereby reducing
monitoring costs while maintaining
public health protection.
DATES: This action is effective August
17, 2022.
ADDRESSES: EPA has established a
docket for this action under Docket ID
No. EPA–HQ–OW–2022–0407. All
documents in the docket are listed on
the https://www.regulations.gov
website. Although listed in the index,
some information is not publicly
available, e.g., confidential business
information (CBI) or other information
whose disclosure is restricted by statute.
Certain other material, such as
copyrighted material, is not placed on
the internet and will be publicly
available only in hard copy form.
Publicly available docket materials are
available electronically through https://
www.regulations.gov.
FOR FURTHER INFORMATION CONTACT:
Glynda Smith, Technical Support
Center, Standards and Risk Management
Division, Office of Ground Water and
Drinking Water (MS 140),
Environmental Protection Agency, 26
West Martin Luther King Drive,
Cincinnati, OH 45268; telephone
number: (513) 569–7652; email address:
smith.glynda@epa.gov.
SUMMARY:
E:\FR\FM\17AUR1.SGM
17AUR1
50576
Federal Register / Vol. 87, No. 158 / Wednesday, August 17, 2022 / Rules and Regulations
SUPPLEMENTARY INFORMATION:
I. General Information
A. Does this action apply to me?
Public water systems are the regulated
entities required to measure
contaminants in drinking water
samples. In addition, EPA Regions as
well as States and Tribal governments
with authority to administer the
regulatory program for public water
methods currently established in the
regulations. EPA is providing public
water systems, required to test water
samples, with a choice of using either a
test procedure already established in the
existing regulations or an alternative
testing method that has been approved
in this action or in prior expedited
approval actions. Categories and entities
that may ultimately be affected by this
action include:
Category
Examples of potentially regulated entities
State, local, & Tribal governments ..............
State, local, and Tribal governments that analyze water samples on behalf of public
water systems required to conduct such analysis; State, local, and Tribal governments that directly operate community and non-transient non-community water systems required to monitor.
Private operators of community and non-transient non-community water systems required to monitor.
Municipal operators of community and non-transient non-community water systems
required to monitor.
Industry ........................................................
Municipalities ...............................................
1 North
NAICS 1
924110
221310
924110
American Industry Classification System.
This table is not intended to be
exhaustive, but rather provides a guide
for readers regarding entities likely to be
interested in this action. Other types of
entities not listed in the table could also
have some interest. To determine
whether your facility is affected by this
action, you should carefully examine
the applicability language in the Code of
Federal Regulations (CFR) at 40 CFR
141.2 (definition of a public water
system). If you have questions regarding
the applicability of this action to a
particular entity, consult the person
listed in the preceding FOR FURTHER
INFORMATION CONTACT section.
Abbreviations and Acronyms Used in
This Action
CFR: Code of Federal Regulations
EPA: United States Environmental Protection
Agency
LED: Light emitting diode
NAICS: North American Industry
Classification System
QC: Quality Control
SDWA: The Safe Drinking Water Act
VCSB: Voluntary Consensus Standard Bodies
II. Background
JSPEARS on DSK121TN23PROD with RULES
systems under the Safe Drinking Water
Act (SDWA) may measure contaminants
in water samples. When EPA sets a
monitoring requirement in its national
primary drinking water regulations for a
given contaminant, the agency also
establishes (in the regulations)
standardized test procedures for
analysis of the contaminant. This action
makes alternative testing methods
available for particular drinking water
contaminants beyond the testing
A. What is the purpose of this action?
In this action, EPA is approving seven
analytical methods for determining
contaminant concentrations in drinking
water samples collected under SDWA.
Regulated entities required to sample
and monitor may use either the testing
methods already established in existing
regulations or the alternative testing
methods being approved in this action
or in prior expedited approval actions.
The new methods are listed along with
other methods similarly approved
through previous expedited actions in
VerDate Sep<11>2014
16:10 Aug 16, 2022
Jkt 256001
40 CFR part 141, appendix A to subpart
C and on EPA’s drinking water methods
website at https://www.epa.gov/
dwanalyticalmethods.
this action is not a rule, it is updating
CFR text and therefore is being
published in the ‘‘Final Rules’’ section
of the Federal Register.
B. What is the basis for this action?
III. Summary of Approvals
When EPA determines that an
alternative analytical method is
‘‘equally effective’’ (i.e., as effective as a
method that has already been
promulgated in the regulations), SDWA
allows EPA to approve the use of the
alternative testing method through
publication in the Federal Register (see
section 1401(1) of SDWA). EPA is using
this streamlined approval authority to
make seven additional methods
available for determining contaminant
concentrations in drinking water
samples collected under SDWA. EPA
has determined that, for each
contaminant or group of contaminants
listed in section III of this preamble, the
additional testing methods being
approved in this action are as effective
as one or more of the testing methods
already approved in the regulations for
those contaminants. Section 1401(1) of
SDWA states that the newly approved
methods ‘‘shall be treated as an
alternative for public water systems to
the quality control and testing
procedures listed in the regulation.’’
Accordingly, this action makes these
additional seven analytical methods
legally available as options for meeting
EPA’s monitoring requirements.
This action does not add regulatory
language, but does, for informational
purposes, update an appendix to the
regulations at 40 CFR part 141 that lists
all methods approved under section
1401(1) of SDWA. Accordingly, while
EPA is approving seven methods that
are equally effective relative to methods
previously promulgated in the
regulations. By means of this action,
these seven methods are added to
appendix A to subpart C of 40 CFR part
141.
PO 00000
Frm 00024
Fmt 4700
Sfmt 4700
A. Methods Developed by EPA
1. EPA Method 904.0, Revision 1.0.
Radium-228 in Drinking Water (USEPA
2022). EPA Method 904.0 (USEPA 1980)
was published in the drinking water
regulations at 40 CFR 141.25(a) as an
approved method for radium-228. The
approved method describes a singlepoint calibration, contains no quality
control specifications, and provides no
calculation for the drinking water
detection limit. EPA Method 904.0,
Revision 1.0 was developed in response
to comments from stakeholders
requesting a method revision that
provides clearly defined calibration and
quality control criteria to assure a more
robust procedure capable of yielding
consistent and reliable analytical
results. The primary analytical steps in
Revision 1.0 are unchanged relative to
the approved method.
The revised method contains detailed
instructions on preparing an appropriate
calibration curve based on the allowable
yield ranges instead of relying on a
single-point calibration. Assessing the
efficiency based on a yield range will
improve the accuracy in the final
E:\FR\FM\17AUR1.SGM
17AUR1
Federal Register / Vol. 87, No. 158 / Wednesday, August 17, 2022 / Rules and Regulations
calculated activity whereas a singlepoint calibration assumes that every
sample will yield the same mass of solid
precipitate.
The revised method contains the
quality control specifications that
laboratories must follow in order to
obtain and maintain Method 904.0,
Revision 1.0 certification to analyze
drinking water compliance samples. In
addition to incorporation of specific
quality control requirements and
acceptance criteria, the revised method
contains options for yield
determinations. In EPA Method 904.0,
two different yields are monitored based
on the precipitated products; namely,
radium-228 is separated from the
sample by co-precipitation with barium
sulfate, then ingrown actinium-228 is
separated by co-precipitation with
yttrium oxalate. The currently approved
method relies on gravimetric
determination of the final barium sulfate
precipitate to estimate the fractional
yield of radium carried on the
precipitate. The revised method allows
the option to incorporate barium-133 as
a radiochemical yield monitor. Barium133 is a non-interfering gamma emitter
that is carried through the precipitation
and complexation steps along with
radium-228. Incorporation of a
radiochemical yield monitor provides a
drinking water. EPA Method 904.0,
Revision 1.0 is available at the National
Service Center for Environmental
Publications at https://www.epa.gov/
nscep.
B. Methods Developed by Voluntary
Consensus Standard Bodies (VCSB)
1. ASTM International. EPA
compared the most recent versions of
three ASTM International methods to
the earlier versions of those methods
that are currently approved in 40 CFR
part 141. Changes between the earlier
approved version and the most recent
version of each method are described
more fully in Smith 2022b. The
revisions involve primarily editorial
changes (e.g., updated references,
definitions, terminology, procedural
clarifications, and reorganization of
text). The revised methods are the same
as the approved versions with respect to
sample collection and handling
protocols, sample preparation,
analytical methodology, and method
performance data; thus, EPA finds they
are equally effective relative to the
approved methods.
EPA is thus approving the use of the
following ASTM methods for the
contaminants and their respective
regulations listed in the following table:
ASTM revised version
Approved method
Contaminant(s)
Regulation
citations
D 4785–20 (ASTM 2020a) .......
D 4107–20 (ASTM 2020b) .......
D 5317–20 (ASTM 2020c) .......
D 4785–00 (ASTM 2000) .........
D 4107–98 (ASTM 1998a) .......
D 5317–98 (ASTM 1998b) .......
Radioactive iodine, gamma emitters ..........................
Tritium .........................................................................
2,4-D, Pentachlorophenol, Picloram, 2,4,5-TP ..........
40 CFR 141.25(a).
40 CFR 141.25(a).
40 CFR 141.24(e)(1).
The ASTM methods are available
from ASTM International, 100 Barr
Harbor Drive, West Conshohocken, PA
19428–2959 or https://www.astm.org.
C. Methods Developed by Vendors
JSPEARS on DSK121TN23PROD with RULES
sensitive option to assess yield based on
activity instead of mass. The currently
approved method also describes
preparation of a final yttrium oxalate
nonahydrate precipitate to determine
the fractional yield of actinium-228
carried on the precipitate. Yttrium
oxalate can be precipitated in the form
of several different hydrates with the
predominate form dependent on the pH.
This issue is not discussed in the
original method and can increase
variability in the yield results. The
revised method discusses the
importance of pH control and includes
the option to convert the yttrium oxalate
nonahydrate to yttrium oxide to
eliminate the issue posed by the
presence of multiple hydrates.
The revised method contains an
expanded ‘‘calculations’’ section that
includes the appropriate equation for
determining the radionuclide drinking
water detection limit as defined in the
regulations at 40 CFR 141.25(c).
EPA has determined that EPA Method
904.0, Revision 1.0 is equally effective
for determining radium-228 in drinking
water samples, relative to the approved
method. The basis for this
determination is discussed in greater
detail in Smith 2022a. Therefore, EPA is
approving EPA Method 904.0, Revision
1.0 for determining radium-228 in
50577
1. Tintometer Lovibond TB 3500
Method—Measurement of Drinking
Water Turbidity of a Captured Sample
Using a Lovibond White Light LED
Portable Turbidimeter (Tintometer
2021a). The Tintometer Lovibond TB
3500 Method uses white light emitting
diode (LED) nephelometry in a portable
turbidimeter to measure turbidity in
drinking water. The LED emits white
light in the visible spectrum between
380 nm and 780 nm, with spectral peak
response between 400 nm and 600 nm.
The method is based on a comparison
of the intensity of light scattered by a
drinking water sample under defined
conditions with the intensity of light
scattered by a standard reference
suspension.
VerDate Sep<11>2014
16:10 Aug 16, 2022
Jkt 256001
Approved methods for turbidity are
listed at 40 CFR 141.74(a)(1). The
performance characteristics of the
Lovibond TB 3500 Method were
compared to the performance
characteristics of the approved Hach
FilterTrak Method 10133 (Hach
Company 2000) and continuous online
process Tintometer Lovibond PTV 1000
method (Tintometer 2016a). The
validation study report (Tintometer
2021b) summarizes the results obtained
from the turbidimeters tested at three
different utilities. Each utility used
surface water sources, but different
treatment technologies. Method
precision, bias, linearity, limits of
detection, and reporting limits were
determined at the first site, with
subsequent sites being used for direct
ATP candidate-, reference-, and processmethod comparability.
EPA has determined that the
Lovibond TB 3500 Method is equally
effective relative to Hach FilterTrak
Method 10133. The basis for this
PO 00000
Frm 00025
Fmt 4700
Sfmt 4700
determination is discussed in Adams
2022a. Therefore, EPA is approving the
Lovibond TB 3500 Method for
determining turbidity in drinking water.
A copy of the method is available from
Tintometer, Inc., 6456 Parkland Drive,
Sarasota, FL 34243.
2. Tintometer Lovibond TB 5000
Method—Measurement of Drinking
Water Turbidity of a Captured Sample
Using a Lovibond 660-nm LED Portable
Turbidimeter (Tintometer 2021c). The
Tintometer Lovibond TB 5000 Method
uses light emitting diode (LED)
nephelometry in a portable turbidimeter
to measure turbidity in drinking water.
The LED emits 660-nm light to reduce
interferences due to dissolved organics
and sample color. The method is based
on a comparison of the intensity of light
scattered by a drinking water sample
under defined conditions with the
intensity of light scattered by a standard
reference suspension.
Approved methods for turbidity are
listed at 40 CFR 141.74(a)(1). The
E:\FR\FM\17AUR1.SGM
17AUR1
JSPEARS on DSK121TN23PROD with RULES
50578
Federal Register / Vol. 87, No. 158 / Wednesday, August 17, 2022 / Rules and Regulations
performance characteristics of the
Lovibond TB 5000 Method were
compared to the performance
characteristics of the approved Hach
FilterTrak Method 10133 (Hach
Company 2000) and continuous online
process Tintometer Lovibond PTV 2000
method (Tintometer 2016b). The
validation study report (Tintometer
2021b) summarizes the results obtained
from the turbidimeters placed online at
three different utilities. Each utility
used surface water sources, but different
treatment technologies. Method
precision, bias, linearity, limits of
detection, and reporting limits were
determined at the first site, with
subsequent sites being used for direct
ATP candidate-, reference-, and processmethod comparability.
EPA has determined that the
Lovibond TB 5000 Method is equally
effective relative to Hach FilterTrak
Method 10133. The basis for this
determination is discussed in Adams
2022b. Therefore, EPA is approving the
Lovibond TB 5000 Method for
determining turbidity in drinking water.
A copy of the method is available from
Tintometer, Inc., 6456 Parkland Drive,
Sarasota, FL 34243.
3. Tintometer Lovibond TB 6000
Method—Measurement of Drinking
Water Turbidity of a Captured Sample
Using a Lovibond Portable Laser
Turbidimeter (Tintometer 2021d). The
Tintometer Lovibond TB 6000 Method
uses laser nephelometry in a portable
turbidimeter to measure turbidity in
drinking water. The method uses a laser
diode with a peak emitting center
wavelength between 650 nm and 690
nm. The method is based on a
comparison of the intensity of light
scattered by a drinking water sample
under defined conditions with the
intensity of light scattered by a standard
reference suspension.
Approved methods for turbidity are
listed at 40 CFR 141.74(a)(1). The
performance characteristics of the
Lovibond TB 6000 Method were
compared to the performance
characteristics of the approved Hach
FilterTrak Method 10133 (Hach
Company 2000) and continuous online
process Tintometer Lovibond PTV 6000
method (Tintometer 2016c). The
validation study report (Tintometer
2021b) summarizes the results obtained
from the turbidimeters placed online at
three different utilities. Each utility
used surface water sources, but different
treatment technologies. Method
precision, bias, linearity, limits of
detection, and reporting limits were
determined at the first site, with
subsequent sites being used for direct
VerDate Sep<11>2014
16:10 Aug 16, 2022
Jkt 256001
ATP candidate-, reference-, and processmethod comparability.
EPA has determined that the
Lovibond TB 6000 Method is equally
effective relative to Hach Filter
TrakMethod 10133. The basis for this
determination is discussed in Adams
2022c. Therefore, EPA is approving the
Lovibond TB 6000 Method for
determining turbidity in drinking water.
A copy of the method is available from
Tintometer, Inc., 6456 Parkland Drive,
Sarasota, FL 34243.
IV. Statutory and Executive Order
Reviews
As noted in section II of this
preamble, under the terms of SDWA
section 1401(1), this streamlined
method approval action is not a rule.
Accordingly, the Congressional Review
Act, 5 U.S.C. 801 et seq., as added by
the Small Business Regulatory
Enforcement Fairness Act of 1996, does
not apply because this action is not a
rule for purposes of 5 U.S.C. 804(3).
Similarly, this action is not subject to
the Regulatory Flexibility Act because it
is not subject to notice and comment
requirements under the Administrative
Procedure Act or any other statute. In
addition, because this approval action is
not a rule, but simply makes alternative
testing methods available as options for
monitoring under SDWA, EPA has
concluded that other statutes and
executive orders generally applicable to
rulemaking do not apply to this
approval action.
V. References
Adams, W. 2022a. Memo to the record
describing basis for expedited approval
of Tintometer Lovibond TB 3500
turbidimeter. February 9, 2022.
(Available at https://
www.regulations.gov; docket ID No.
EPA–HQ–OW–2022–0407.)
Adams, W. 2022b. Memo to the record
describing basis for expedited approval
of Tintometer Lovibond TB 5000
turbidimeter. February 9, 2022.
(Available at https://
www.regulations.gov; docket ID No.
EPA–HQ–OW–2022–0407.)
Adams, W. 2022c. Memo to the record
describing basis for expedited approval
of Tintometer Lovibond TB 6000
turbidimeter. February 9, 2022.
(Available at https://
www.regulations.gov; docket ID No.
EPA–HQ–OW–2022–0407.)
ASTM International. 1998a. ASTM D 4107–
98. Standard Test Method for Tritium in
Drinking Water. ASTM International,
100 Barr Harbor Drive, West
Conshohocken, PA 19428–2959.
(Available at https://www.astm.org.)
ASTM International. 1998b. ASTM D 5317–
98. Standard Test Method for
Determination of Chlorinated Organic
Acid Compounds in Water by Gas
PO 00000
Frm 00026
Fmt 4700
Sfmt 4700
Chromatography with an Electron
Capture Detector. ASTM International,
100 Barr Harbor Drive, West
Conshohocken, PA 19428–2959.
(Available at https://www.astm.org.)
ASTM International. 2000. ASTM D 4785–00.
Standard Test Method for Low-Level
Analysis of Iodine Radioisotopes in
Water. ASTM International, 100 Barr
Harbor Drive, West Conshohocken, PA
19428–2959. (Available at https://
www.astm.org.)
ASTM International. 2020a. ASTM D 4785–
20. Standard Test Method for Low-Level
Analysis of Iodine Radioisotopes in
Water. ASTM International, 100 Barr
Harbor Drive, West Conshohocken, PA
19428–2959. (Available at https://
www.astm.org.)
ASTM International. 2020b. ASTM D 4107–
20. Standard Test Method for Tritium in
Drinking Water. ASTM International,
100 Barr Harbor Drive, West
Conshohocken, PA 19428–2959.
(Available at https://www.astm.org.)
ASTM International. 2020c. ASTM D 5317–
20. Standard Test Method for
Determination of Chlorinated Organic
Acid Compounds in Water by Gas
Chromatography with an Electron
Capture Detector. ASTM International,
100 Barr Harbor Drive, West
Conshohocken, PA 19428–2959.
(Available at https://www.astm.org.)
Hach Company. 2000. Hach FilterTrak
Method 10133. Determination of
Turbidity by Laser Nephelometry.
January 2000, Revision 2.0. Hach
Company, 5600 Lindbergh Drive,
Loveland, Colorado 80539. (Available at
https://www.regulations.gov; docket ID
No. EPA–HQ–OW–2022–0407.)
Smith, G. 2022a. Memo to the record
describing basis for expedited approval
of EPA Method 904.0, Revision 1.0.
January 10, 2022. (Available at https://
www.regulations.gov; docket ID No.
EPA–HQ–OW–2022–0407.)
Smith, G. 2022b. Memo to the record
describing basis for expedited approval
of updated methods from ASTM
International. January 5, 2022. (Available
at https://www.regulations.gov; docket ID
No. EPA–HQ–OW–2022–0407.)
Tintometer 2016a. Continuous Measurement
of Drinking Water Turbidity using a
Lovibond PTV 1000 White Light LED
Turbidimeter—The Lovibond White
Light Method. December 2016. Revision
1.0. Tintometer, Inc. 6456 Parkland
Drive, Sarasota, FL 34243. (Available at
https://www.regulations.gov; docket ID
No. EPA–HQ–OW–2022–0407.)
Tintometer 2016b. Continuous Measurement
of Drinking Water Turbidity using a
Lovibond PTV 2000 660-nm LED
Turbidimeter—The Lovibond 660-nm
LED Method. December 2016. Revision
1.0. Tintometer, Inc. 6456 Parkland
Drive, Sarasota, FL 34243. (Available at
https://www.regulations.gov; docket ID
No. EPA–HQ–OW–2022–0407.)
Tintometer 2016c. Continuous Measurement
of Drinking Water Turbidity using a
Lovibond PTV 6000 Laser
Turbidimeter—The Lovibond 6000 Laser
E:\FR\FM\17AUR1.SGM
17AUR1
Federal Register / Vol. 87, No. 158 / Wednesday, August 17, 2022 / Rules and Regulations
Method. December 2016. Revision 1.0.
Tintometer, Inc. 6456 Parkland Drive,
Sarasota, FL 34243. (Available at https://
www.regulations.gov; docket ID No.
EPA–HQ–OW–2022–0407.)
Tintometer 2021a. Lovibond TB 3500:
Measurement of a Captured Sample
using a Lovibond White Light LED
Portable Turbidimeter. May 2021.
Revision 1.0. Tintometer, Inc. 6456
Parkland Drive, Sarasota, FL 34243.
(Available at https://
www.regulations.gov; docket ID No.
EPA–HQ–OW–2022–0407.)
Tintometer 2021b. Alternate Test Procedure
(ATP) Validation Study Report for the
Measurement of Drinking Water
Turbidity up to 10 NTU using the
Lovibond Portable Turbidimeter
Methods. April 26, 2021. Tintometer,
Inc. 6456 Parkland Drive, Sarasota, FL
34243. (Available at https://
www.regulations.gov; docket ID No.
EPA–HQ–OW–2022–0407.)
Tintometer 2021c. Lovibond TB 5000:
Measurement of Drinking Water
Turbidity of a Captured Sample using a
Lovibond 660-nm LED Portable
Turbidimeter. May 2021. Revision 1.0.
Tintometer, Inc. 6456 Parkland Drive,
Sarasota, FL 34243. (Available at https://
www.regulations.gov; docket ID No.
EPA–HQ–OW–2022–0407.)
Tintometer 2021d. Lovibond TB 6000:
Measurement of Drinking Water
Turbidity of a Captured Sample using a
Lovibond Portable Laser Turbidimeter.
May 2021. Revision 1.0. Tintometer, Inc.
6456 Parkland Drive, Sarasota, FL 34243.
(Available at https://
www.regulations.gov; docket ID No.
EPA–HQ–OW–2022–0407.)
USEPA. 1980. EPA Method 904.0. Radium228 in Drinking Water in ‘‘Prescribed
Procedures for Measurement of
Radioactivity in Drinking Water,’’ EPA–
600/4–80–032, August 1980. (Available
at https://www.regulations.gov; docket ID
No. EPA–HQ–OW–2022–0407.)
USEPA. 2022. EPA Method 904.0, Revision
1.0. Radium-228 in Drinking Water. EPA
815–B–22–003. March 2022. (Available
at https://www.regulations.gov; docket ID
No. EPA–HQ–OW–2022–0407.)
List of Subjects in 40 CFR Part 141
Environmental protection, Chemicals,
Indians—lands, Intergovernmental
relations, Reporting and recordkeeping
requirements, Water supply.
Jennifer L. McLain,
Director, Office of Ground Water and Drinking
Water.
For the reasons stated in the
preamble, the Environmental Protection
Agency amends 40 CFR part 141 as
follows:
PART 141—NATIONAL PRIMARY
DRINKING WATER REGULATIONS
1. The authority citation for part 141
continues to read as follows:
■
50579
Authority: 42 U.S.C. 300f, 300g–1, 300g–
2, 300g–3, 300g–4, 300g–5, 300g–6, 300j–4,
300j–9, and 300j–11.
2. Amend appendix A to subpart C of
Part 141 by:
■ a. Revise the table entitled
‘‘ALTERNATIVE TESTING METHODS
FOR CONTAMINANTS LISTED AT 40
CFR 141.24(e)(1)’’;
■ b. In the table entitled
‘‘ALTERNATIVE TESTING METHODS
FOR CONTAMINANTS LISTED AT 40
CFR 141.25(a)’’ revise the entries for
‘‘Radium 228,’’ ‘‘Radioactive Iodine,’’
‘‘Tritium,’’ and ‘‘Gamma Emitters’’;
■ c. In the table entitled
‘‘ALTERNATIVE TESTING METHODS
FOR CONTAMINANTS LISTED AT 40
CFR 141.74(a)(1)’’ revise the entry for
‘‘Turbidity’’;
■ d. Revise footnotes ‘‘7’’, ‘‘10’’, ‘‘11’’,
‘‘12’’, ‘‘15’’, ‘‘18’’, ‘‘19’’, ‘‘27’’, ‘‘30’’,
‘‘47’’, and ‘‘50’’; and,
■ e. Add footnotes 62 through 65.
The revisions and additions read as
follows:
■
APPENDIX A TO SUBPART C OF
PART 141—ALTERNATIVE TESTING
METHODS APPROVED FOR
ANALYSES UNDER THE SAFE
DRINKING WATER ACT
*
*
*
*
*
ALTERNATIVE TESTING METHODS FOR CONTAMINANTS LISTED AT 40 CFR 141.24 (e)(1)
Contaminant
Methodology
JSPEARS on DSK121TN23PROD with RULES
Benzene ...............
EPA method
Purge &Trap/Gas
Chromatography/Mass
Spectrometry.
Carbon tetraPurge &Trap/Gas
chloride.
Chromatography/Mass
Spectrometry.
Chlorobenzene ..... Purge &Trap/Gas
Chromatography/Mass
Spectrometry.
1,2Purge &Trap/Gas
Dichlorobenzene.
Chromatography/Mass
Spectrometry.
1,4Purge &Trap/Gas
Dichlorobenzene.
Chromatography/Mass
Spectrometry.
1,2-Dichloroethane Purge &Trap/Gas
Chromatography/Mass
Spectrometry.
cisPurge &Trap/Gas
Dichloroethylene.
Chromatography/Mass
Spectrometry.
transPurge &Trap/Gas
Dichloroethylene.
Chromatography/Mass
Spectrometry.
Dichloromethane ... Purge &Trap/Gas
Chromatography/Mass
Spectrometry.
VerDate Sep<11>2014
16:10 Aug 16, 2022
SM 21st edition 1
SM 22nd edition,28 SM 23rd
edition 49
SM Online
3
ASTM 4
9 524.3, 29 524.4.
9 524.3, 29 524.4.
9 524.3, 29 524.4.
9 524.3, 29 524.4.
9 524.3, 29 524.4.
9 524.3, 29 524.4.
9 524.3, 29 524.4.
9 524.3, 29 524.4.
9 524.3, 29 524.4.
Jkt 256001
PO 00000
Frm 00027
Fmt 4700
Sfmt 4700
E:\FR\FM\17AUR1.SGM
17AUR1
Other
50580
Federal Register / Vol. 87, No. 158 / Wednesday, August 17, 2022 / Rules and Regulations
ALTERNATIVE TESTING METHODS FOR CONTAMINANTS LISTED AT 40 CFR 141.24 (e)(1)—Continued
Contaminant
Methodology
JSPEARS on DSK121TN23PROD with RULES
1,2Dichloropropane.
Purge &Trap/Gas
Chromatography/Mass
Spectrometry.
Ethylbenzene ........ Purge &Trap/Gas
Chromatography/Mass
Spectrometry.
Styrene ................. Purge &Trap/Gas
Chromatography/Mass
Spectrometry.
Tetrachloroethylen- Purge &Trap/Gas
e.
Chromatography/Mass
Spectrometry.
1,1,1-TrichloroPurge &Trap/Gas
ethane.
Chromatography/Mass
Spectrometry.
Trichloroethylene .. Purge &Trap/Gas
Chromatography/Mass
Spectrometry.
Toluene ................. Purge &Trap/Gas
Chromatography/Mass
Spectrometry.
1,2,4Purge &Trap/Gas
Trichlorobenzene.
Chromatography/Mass
Spectrometry.
1,1Purge &Trap/Gas
Dichloroethylene.
Chromatography/Mass
Spectrometry.
1,1,2Purge &Trap/Gas
Trichlorethane.
Chromatography/Mass
Spectrometry.
Vinyl chloride ........ Purge &Trap/Gas
Chromatography/Mass
Spectrometry.
Xylenes (total) ....... Purge &Trap/Gas
Chromatography/Mass
Spectrometry.
2,4-D ..................... Gas Chromatography/Electron Capture
Detection (GC/
ECD).
2,4,5-TP (Silvex) ... Gas Chromatography/Electron Capture
Detection (GC/
ECD).
Alachlor ................. Solid Phase Extraction/Gas
Chromatography/Mass
Spectrometry
(GC/MS).
Atrazine ................. Liquid Chromatography
Electrospray
Ionization Tandem Mass
Spectrometry
(LC/ESI–MS/
MS).
Solid Phase Extraction/Gas
Chromatography/Mass
Spectrometry
(GC/MS)
VerDate Sep<11>2014
18:09 Aug 16, 2022
SM 21st edition 1
SM 22nd edition,28 SM 23rd
edition 49
..............................
6640 B .................
6640 B .................
6640 B–01, B–06
D 5317–20.
..............................
6640 B .................
6640 B .................
6640 B–01, B–06
D 5317–20.
EPA method
SM Online
3
ASTM 4
9 524.3, 29 524.4.
9 524.3, 29 524.4.
9 524.3, 29 524.4.
9 524.3, 29 524.4.
9 524.3, 29 524.4.
9 524.3, 29 524.4.
9 524.3, 29 524.4.
9 524.3, 29 524.4.
9 524.3, 29 524.4.
9 524.3, 29 524.4.
9 524.3, 29 524.4.
9 524.3, 29 524.4.
24 525.3.
25 536.
24 525.3, 26 523.
Jkt 256001
PO 00000
Frm 00028
Fmt 4700
Sfmt 4700
E:\FR\FM\17AUR1.SGM
17AUR1
Other
Federal Register / Vol. 87, No. 158 / Wednesday, August 17, 2022 / Rules and Regulations
50581
ALTERNATIVE TESTING METHODS FOR CONTAMINANTS LISTED AT 40 CFR 141.24 (e)(1)—Continued
Contaminant
Methodology
Benzo(a)pyrene ....
Solid Phase Extraction/Gas
Chromatography/Mass
Spectrometry
(GC/MS).
High-performance
liquid chromatography
(HPLC) with
post-column
derivatization
and fluorescence detection.
Liquid Chromatography/Mass
Spectrometry.
Solid Phase Extraction/Gas
Chromatography/Mass
Spectrometry
(GC/MS).
Ion Chromatography
Electrospray
Ionization Tandem Mass
Spectrometry
(IC–ESI–MS/
MS).
Gas Chromatography/Electron Capture
Detection (GC/
ECD).
Solid Phase Extraction/Gas
Chromatography/Mass
Spectrometry
(GC/MS).
Solid Phase Extraction/Gas
Chromatography/Mass
Spectrometry
(GC/MS).
Purge &Trap/Gas
Chromatography/Mass
Spectrometry.
Gas Chromatography/Electron Capture
Detection (GC/
ECD).
Solid Phase Extraction/Gas
Chromatography/Mass
Spectrometry
(GC/MS).
Purge &Trap/Gas
Chromatography/Mass
Spectrometry.
High-Performance
Liquid Chromatography
(HPLC) with
Post-Column
Derivatization
and Fluorescence Detection.
Carbofuran ............
Chlordane .............
Dalapon ................
Di(2ethylhexyl)adipate.
Di(2ethylhexyl)phthalate.
Dibromochloropropane (DBCP).
Dinoseb .................
Endrin ...................
Ethyl dibromide
(EDB).
JSPEARS on DSK121TN23PROD with RULES
Glyphosate ...........
VerDate Sep<11>2014
18:13 Aug 16, 2022
SM 21st edition 1
SM 22nd edition,28 SM 23rd
edition 49
..............................
6610 B .................
6610 B .................
6610 B–04.
..............................
..............................
..............................
..............................
6640 B .................
6640 B .................
6640 B–01, B–06.
6640 B .................
6640 B .................
6640 B–01, B–06.
6651 B .................
6651 B .................
6651 B–00, B–05.
EPA method
24 525.3.
24 525.3
SM Online
3
ASTM 4
...............
..............................
................
14 557.
..............................
24 525.3.
24 525.3.
9 524.3.
..............................
24 525.3.
9 524.3.
..............................
Jkt 256001
Other
PO 00000
Frm 00029
Fmt 4700
Sfmt 4700
E:\FR\FM\17AUR1.SGM
17AUR1
58 ME
531
50582
Federal Register / Vol. 87, No. 158 / Wednesday, August 17, 2022 / Rules and Regulations
ALTERNATIVE TESTING METHODS FOR CONTAMINANTS LISTED AT 40 CFR 141.24 (e)(1)—Continued
Contaminant
Methodology
Heptachlor ............
Solid Phase Extraction/Gas
Chromatography/Mass
Spectrometry
(GC/MS).
Solid Phase Extraction/Gas
Chromatography/Mass
Spectrometry
(GC/MS).
Solid Phase Extraction/Gas
Chromatography/Mass
Spectrometry
(GC/MS).
Solid Phase Extraction/Gas
Chromatography/Mass
Spectrometry
(GC/MS).
Solid Phase Extraction/Gas
Chromatography/Mass
Spectrometry
(GC/MS).
Solid Phase Extraction/Gas
Chromatography/Mass
Spectrometry
(GC/MS).
High-performance
liquid chromatography
(HPLC) with
post-column
derivatization
and fluorescence detection.
Liquid Chromatography/Mass
Spectrometry.
Solid Phase Extraction/Gas
Chromatography/Mass
Spectrometry
(GC/MS).
Gas Chromatography/Electron Capture
Detection (GC/
ECD).
Solid Phase Extraction/Gas
Chromatography/Mass
Spectrometry
(GC/MS).
Gas Chromatography/Electron Capture
Detection (GC/
ECD).
Liquid Chromatography
Electrospray
Ionization Tandem Mass
Spectrometry
(LC/ESI–MS/
MS).
Heptachlor Epoxide.
Hexachlorobenzene.
Hexachlorocyclopentadiene.
Lindane .................
Methoxychlor ........
Oxamyl .................
PCBs (as Aroclors)
Pentachlorophenol
JSPEARS on DSK121TN23PROD with RULES
Picloram ................
Simazine ...............
VerDate Sep<11>2014
18:09 Aug 16, 2022
SM 21st edition 1
SM 22nd edition,28 SM 23rd
edition 49
..............................
6610 B .................
6610 B .................
6610 B–04.
..............................
..............................
..............................
..............................
..............................
6640 B .................
6640 B .................
6640 B–01, B–06
D 5317–20.
6640 B .................
6640 B .................
6640 B–01, B–06
D 5317–20. ..........
EPA method
SM Online
3
ASTM 4
Other
24 525.3.
24 525.3.
24 525.3.
24 525.3.
24 525.3.
24 525.3.
24 525.3.
..............................
24 525.3.
..............................
25 536.
Jkt 256001
PO 00000
Frm 00030
Fmt 4700
Sfmt 4700
E:\FR\FM\17AUR1.SGM
17AUR1
58 ME
531.
Federal Register / Vol. 87, No. 158 / Wednesday, August 17, 2022 / Rules and Regulations
50583
ALTERNATIVE TESTING METHODS FOR CONTAMINANTS LISTED AT 40 CFR 141.24 (e)(1)—Continued
Contaminant
Methodology
Toxaphene ............
Total
Trihalomethanes.
EPA method
Solid Phase Extraction/Gas
Chromatography/Mass
Spectrometry
(GC/MS).
Solid Phase Extraction/Gas
Chromatography/Mass
Spectrometry
(GC/MS).
Purge &Trap/Gas
Chromatography/Mass
Spectrometry.
SM 21st edition 1
SM 22nd edition,28 SM 23rd
edition 49
3
SM Online
ASTM 4
Other
24 525.3, 26 523.
24 525.3.
9 524.3, 29 524.4.
ALTERNATIVE TESTING METHODS FOR CONTAMINANTS LISTED AT 40 CFR 141.25(a)
Contaminant
Methodology
EPA method
SM 21st edition 1
SM 22nd edition,28
SM 23rd edition 49
*
Radium 228 ..............
*
Radiochemical ..........
Gamma Spectrometry.
*
904.0, Rev. 1.0 62 .....
...................................
*
7500–Ra D ...............
...................................
*
7500–Ra D.
7500–Ra E ...............
*
Radiochemical ..........
*
...................................
Gamma Ray Spectrometry.
...................................
*
7500–I B, 7500–I C,
7500–I D.
7120 .........................
*
7500–I B, 7500–I C,
7500–I D.
7120 .........................
D 4785–08, –20.
*
Liquid Scintillation ....
Gamma Ray Spectrometry.
*
...................................
...................................
*
7500–3 H B ..............
7120, 7500–Cs B,
7500–I B.
*
7500–3 H B ..............
7120, 7500–Cs B,
7500–I B.
*
D 4107–08, –20
D 3649–06, D 4785–
08, –20.
*
Radioactive Iodine ....
*
Tritium .......................
Gamma Emitters ......
SM Online 3
ASTM 4
*
*
...................................
*
D 3649–06.
7500–Ra E–07.
*
*
ALTERNATIVE TESTING METHODS FOR CONTAMINANTS LISTED AT 40 CFR 141.74(a)(1)
Organism
Methodology
SM 21st edition 1
SM 22nd edition 28
SM 23rd edition 49
SM online 3
*
Turbidity ...................
*
Nephelometric
Method.
Laser
Nephelometry
(on-line).
LED Nephelometry
(on-line).
*
2130 B ...................
*
2130 B ...................
*
2130 B ...................
*
................................
................................
................................
................................
................................
................................
................................
................................
................................
LED Nephelometry
(on-line).
LED Nephelometry
(portable).
................................
................................
................................
................................
................................
................................
................................
................................
................................
................................
................................
................................
................................
................................
................................
................................
JSPEARS on DSK121TN23PROD with RULES
Laser
Nephelometry
(portable).
360° Nephelometry
Other
*
Hach Method 8195, Rev.
3.0.52
Mitchell M5271,10 Mitchell
M5331, Rev. 1.2,42
Lovibond PTV 6000.46
Mitchell M5331,11 Mitchell
M5331, Rev. 1.2 42,
Lovibond PTV 2000.45
AMI Turbiwell,15 Lovibond
PTV 1000.44
Orion AQ4500,12 Lovibond
TB 3500,64 Lovibond TB
5000.65
Lovibond TB 6000 63.
Hach Method 10258, Rev.
1.0,39 Hach Method 10258,
Rev. 2.0.51
*
*
*
*
*
*
*
1 Standard Methods for the Examination of Water and Wastewater, 21st edition (2005). Available from American Public Health Association, 800 I Street NW, Washington, DC 20001–3710.
*
*
*
*
*
*
*
3 Standard Methods Online are available at https://www.standardmethods.org. The year in which each method was approved by the Standard Methods Committee is
designated by the last two digits in the method number. The methods listed are the only online versions that may be used.
4 Available from ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428–2959 or https://astm.org. The methods listed are the only alternative
versions that may be used.
*
*
*
*
*
*
*
7 Method ME355.01, Revision 1.0. ‘‘Determination of Cyanide in Drinking Water by GC/MS Headspace,’’ May 26, 2009. Available at https://www.nemi.gov or from
James Eaton, H & E Testing Laboratory, 221 State Street, Augusta, ME 04333. (207) 287–2727.
*
*
*
*
*
*
*
9 EPA Method 524.3, Version 1.0. ‘‘Measurement of Purgeable Organic Compounds in Water by Capillary Column Gas Chromatography/Mass Spectrometry.’’ June
2009. EPA 815–B–09–009. Available at https://www.nemi.gov.
10 Mitchell Method M5271, Revision 1.1. ‘‘Determination of Turbidity by Laser Nephelometry,’’ March 5, 2009. Available at https://www.nemi.gov or from Leck Mitchell, Ph.D., PE, 656 Independence Valley Dr., Grand Junction, CO 81507.
VerDate Sep<11>2014
18:09 Aug 16, 2022
Jkt 256001
PO 00000
Frm 00031
Fmt 4700
Sfmt 4700
E:\FR\FM\17AUR1.SGM
17AUR1
50584
Federal Register / Vol. 87, No. 158 / Wednesday, August 17, 2022 / Rules and Regulations
11 Mitchell Method M5331, Revision 1.1. ‘‘Determination of Turbidity by LED Nephelometry,’’ March 5, 2009. Available at https://www.nemi.gov or from Leck Mitchell, Ph.D., PE, 656 Independence Valley Dr., Grand Junction, CO 81507.
12 Orion Method AQ4500, Revision 1.0. ‘‘Determination of Turbidity by LED Nephelometry,’’ May 8, 2009. Available at https://www.nemi.gov or from Thermo Scientific, 166 Cummings Center, Beverly, MA 01915, https://www.thermo.com.
*
*
*
*
*
*
*
14 EPA Method 557. ‘‘Determination of Haloacetic Acids, Bromate, and Dalapon in Drinking Water by Ion Chromatography Electrospray Ionization Tandem Mass
Spectrometry (IC–ESI–MS/MS),’’ September 2009. EPA 815–B–09–012. Available at https://www.nemi.gov.
15 AMI Turbiwell, ‘‘Continuous Measurement of Turbidity Using a SWAN AMI Turbiwell Turbidimeter,’’ August 2009. Available at https://www.nemi.gov or from
Markus Bernasconi, SWAN Analytische Instrumente AG, Studbachstrasse 13, CH–8340 Hinwil, Switzerland.
*
*
*
*
*
*
*
18 EPA Method 302.0. ‘‘Determination of Bromate in Drinking Water using Two-Dimensional Ion Chromatography with Suppressed Conductivity Detection,’’ September 2009. EPA 815–B–09–014. Available at https://www.nemi.gov.
19 EPA 415.3, Revision 1.2. ‘‘Determination of Total Organic Carbon and Specific UV Absorbance at 254 nm in Source Water and Drinking Water,’’ September
2009. EPA/600/R–09/122. Available at https://www.epa.gov/water-research/epa-drinking-water-research-methods.
*
*
*
*
*
*
*
24 EPA Method 525.3. ‘‘Determination of Semivolatile Organic Chemicals in Drinking Water by Solid Phase Extraction and Capillary Column Gas Chromatography/
Mass Spectrometry (GC/MS).’’ February 2012. EPA/600/R–12/010. Available at https://www.epa.gov/water-research/epa-drinking-water-research-methods.
25 EPA Method 536. ‘‘Determination of Triazine Pesticides and their Degradates in Drinking Water by Liquid Chromatography Electrospray Ionization Tandem Mass
Spectrometry (LC/ESI–MS/MS).’’ October 2007. EPA 815–B–07–002. Available at the National Service Center for Environmental Publications at https://www.epa.gov/
nscep.
26 EPA Method 523. ‘‘Determination of Triazine Pesticides and their Degradates in Drinking Water by Gas Chromatography/Mass Spectrometry (GC/MS).’’ February
2011. EPA 815–R–11–002. Available at the National Service Center for Environmental Publications at https://www.epa.gov/nscep.
27 EPA Method 1623.1. ‘‘Cryptosporidium and Giardia in Water by Filtration/IMS/FA,’’ 2012. EPA–816–R–12–001. Available at the National Service Center for Environmental Publications at https://www.epa.gov/nscep.
28 Standard Methods for the Examination of Water and Wastewater, 22nd edition (2012). Available from American Public Health Association, 800 I Street NW,
Washington, DC 20001–3710.
29 EPA Method 524.4, Version 1.0. ‘‘Measurement of Purgeable Organic Compounds in Water by Gas Chromatography/Mass Spectrometry using Nitrogen Purge
Gas.’’ May 2013. EPA 815–R–13–002. Available at the National Service Center for Environmental Publications at https://www.epa.gov/nscep.
30 Charm Sciences Inc. ‘‘Fast Phage Test Procedure. Presence/Absence for Coliphage in Ground Water with Same Day Positive Prediction’’. Version 009. November 2012. 659 Andover Street, Lawrence, MA 01843. Available at www.charmsciences.com.
*
*
*
*
*
*
*
39 Hach Company. ‘‘Hach Method 10258—Determination of Turbidity by 360° Nephelometry,’’ January 2016. Revision 1.0. 5600 Lindbergh Drive, P.O. Box 389,
Loveland, CO 80539.
*
*
*
*
*
*
*
42 Mitchell Method M5331, Revision 1.2. ‘‘Determination of Turbidity by LED or Laser Nephelometry,’’ February 2016. Available from Leck Mitchell, Ph.D., PE, 656
Independence Valley Dr., Grand Junction, CO 81507.
*
*
*
*
*
*
*
44 Lovibond PTV 1000. ‘‘Continuous Measurement of Drinking Water Turbidity using a Lovibond PTV 1000 White Light LED Turbidimeter,’’ December 2016. Revision 1.0. Available from Tintometer, Inc., 6456 Parkland Drive, Sarasota, FL 34243.
45 Lovibond PTV 2000. ‘‘Continuous Measurement of Drinking Water Turbidity Using a Lovibond PTV 2000 660-nm LED Turbidimeter,’’ December 2016. Revision
1.0. Available from Tintometer, Inc., 6456 Parkland Drive, Sarasota, FL 34243.
46 Lovibond PTV 6000. ‘‘Continuous Measurement of Drinking Water Turbidity Using a Lovibond PTV 6000 Laser Turbidimeter,’’ December 2016. Revision 1.0.
Available from Tintometer, Inc., 6456 Parkland Drive, Sarasota, FL 34243.
47 Thermo Fisher. ‘‘Thermo Fisher method 557.1: Determination of Haloacetic Acids in Drinking Water using Two-Dimensional Ion Chromatography with Suppressed Conductivity Detection,’’ January 2017. Version 1.0. Available from Thermo Fisher Scientific, 490 Lakeside Dr., Sunnyvale, CA 94085 (Richard.jack@
thermofisher.com).
*
*
*
*
*
*
*
49 Standard Methods for the Examination of Water and Wastewater, 23rd edition (2017). Available from American Public Health Association, 800 I Street NW,
Washington, DC 20001–3710.
50 EPA Method 900.0, Rev. 1.0. ‘‘Determination of Gross Alpha and Gross Beta in Drinking Water,’’ February 2018. EPA 815–B–18–002. Available at the National
Service Center for Environmental Publications at https://www.epa.gov/nscep.
51 Hach Company. ‘‘Hach Method 10258—Determination of Turbidity by 360° Nephelometry.’’ March 2018. Revision 2.0. 5600 Lindbergh Drive, P.O. Box 389,
Loveland, CO 80539.
52 Hach Company. ‘‘Hach Method 8195—Determination of Turbidity by Nephelometry.’’ March 2018. Revision 3.0. 5600 Lindbergh Drive, P.O. Box 389, Loveland,
CO 80539.
*
*
*
*
*
*
*
58 ME 531, Version 1.0. ‘‘Measurement of N-Methylcarbamoyloximes and N-Methylcarbamates in Drinking Water by LC–MS/MS. September 2019. Maine Health
Environmental Testing Laboratory, 221 State Street, Augusta, ME 04330.
*
*
*
*
*
*
*
62 EPA Method 904.0, Rev. 1.0. ‘‘Radium-228 in Drinking Water.’’ March 2022. EPA 815–B–22–003. Available at the National Service Center for Environmental
Publications at https://www.epa.gov/nscep.
63 Lovibond TB 6000. ‘‘Measurement of Drinking Water Turbidity of a Captured Sample using a Lovibond Portable Laser Turbidimeter.’’ May 2021. Revision 1.0.
Available from Tintometer, Inc., 6456 Parkland Drive, Sarasota, FL 34243.
64 Lovibond TB 3500. ‘‘Measurement of Drinking Water Turbidity of a Captured Sample using a Lovibond White Light LED Portable Turbidimeter.’’ May 2021. Revision 1.0. Available from Tintometer, Inc., 6456 Parkland Drive, Sarasota, FL 34243.
65 Lovibond TB 5000. ‘‘Measurement of Drinking Water Turbidity of a Captured Sample using a Lovibond 660-nm LED Portable Turbidimeter.’’ May 2021. Revision
1.0. Available from Tintometer, Inc., 6456 Parkland Drive, Sarasota, FL 34243.
[FR Doc. 2022–17651 Filed 8–16–22; 8:45 am]
JSPEARS on DSK121TN23PROD with RULES
BILLING CODE 6560–50–P
VerDate Sep<11>2014
16:10 Aug 16, 2022
Jkt 256001
The Environmental Protection
Agency (EPA) announces the deletion of
four sites and the partial deletion of six
40 CFR Part 300
sites from the Superfund National
Priorities List (NPL). The NPL, created
[EPA–HQ–SFUND–1990–0010, EPA–HQ–
under the Comprehensive
SFUND–1994–0001, EPA–HQ–SFUND–2002– Environmental Response,
0008, EPA–HQ–SFUND–2003–0010, EPA–
Compensation, and Liability Act
HQ–OLEM–2021–0797, EPA–HQ–OLEM–
(CERCLA) of 1980, as amended, is an
2021–0798, EPA–HQ–OLEM–2021–0815,
appendix of the National Oil and
EPA–HQ–OLEM–2021–0922, EPA–HQ–
Hazardous Substances Pollution
OLEM–2021–0934, EPA–HQ–OLEM–2022–
Contingency Plan (NCP). The EPA and
0111; FRL–10018–01–OLEM]
the states, through their designated state
Deletion From the National Priorities
agencies, have determined that all
List
appropriate response actions under
CERCLA, other than operation and
AGENCY: Environmental Protection
maintenance, monitoring, and five-year
Agency (EPA).
reviews, where applicable, have been
ACTION: Final rule.
completed. However, this deletion does
ENVIRONMENTAL PROTECTION
AGENCY
PO 00000
Frm 00032
Fmt 4700
Sfmt 4700
SUMMARY:
E:\FR\FM\17AUR1.SGM
17AUR1
Agencies
[Federal Register Volume 87, Number 158 (Wednesday, August 17, 2022)]
[Rules and Regulations]
[Pages 50575-50584]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2022-17651]
=======================================================================
-----------------------------------------------------------------------
ENVIRONMENTAL PROTECTION AGENCY
40 CFR Part 141
[EPA-HQ-OW-2022-0407; FRL-9834-01-OW]
Expedited Approval of Alternative Test Procedures for the
Analysis of Contaminants Under the Safe Drinking Water Act; Analysis
and Sampling Procedures
AGENCY: Environmental Protection Agency (EPA).
ACTION: Final rule.
-----------------------------------------------------------------------
SUMMARY: This action announces the Environmental Protection Agency's
(EPA's) approval of alternative testing methods for use in measuring
the levels of contaminants in drinking water to determine compliance
with national primary drinking water regulations. The Safe Drinking
Water Act authorizes EPA to approve the use of alternative testing
methods through publication in the Federal Register. EPA is using this
streamlined authority to make seven additional methods available for
analyzing drinking water samples. This expedited approach provides
public water systems, laboratories, and primacy agencies with more
timely access to new measurement techniques and greater flexibility in
the selection of analytical methods, thereby reducing monitoring costs
while maintaining public health protection.
DATES: This action is effective August 17, 2022.
ADDRESSES: EPA has established a docket for this action under Docket ID
No. EPA-HQ-OW-2022-0407. All documents in the docket are listed on the
https://www.regulations.gov website. Although listed in the index, some
information is not publicly available, e.g., confidential business
information (CBI) or other information whose disclosure is restricted
by statute. Certain other material, such as copyrighted material, is
not placed on the internet and will be publicly available only in hard
copy form. Publicly available docket materials are available
electronically through https://www.regulations.gov.
FOR FURTHER INFORMATION CONTACT: Glynda Smith, Technical Support
Center, Standards and Risk Management Division, Office of Ground Water
and Drinking Water (MS 140), Environmental Protection Agency, 26 West
Martin Luther King Drive, Cincinnati, OH 45268; telephone number: (513)
569-7652; email address: [email protected].
[[Page 50576]]
SUPPLEMENTARY INFORMATION:
I. General Information
A. Does this action apply to me?
Public water systems are the regulated entities required to measure
contaminants in drinking water samples. In addition, EPA Regions as
well as States and Tribal governments with authority to administer the
regulatory program for public water systems under the Safe Drinking
Water Act (SDWA) may measure contaminants in water samples. When EPA
sets a monitoring requirement in its national primary drinking water
regulations for a given contaminant, the agency also establishes (in
the regulations) standardized test procedures for analysis of the
contaminant. This action makes alternative testing methods available
for particular drinking water contaminants beyond the testing methods
currently established in the regulations. EPA is providing public water
systems, required to test water samples, with a choice of using either
a test procedure already established in the existing regulations or an
alternative testing method that has been approved in this action or in
prior expedited approval actions. Categories and entities that may
ultimately be affected by this action include:
------------------------------------------------------------------------
Examples of
Category potentially regulated NAICS \1\
entities
------------------------------------------------------------------------
State, local, & Tribal State, local, and 924110
governments. Tribal governments
that analyze water
samples on behalf of
public water systems
required to conduct
such analysis; State,
local, and Tribal
governments that
directly operate
community and non-
transient non-
community water
systems required to
monitor.
Industry....................... Private operators of 221310
community and non-
transient non-
community water
systems required to
monitor.
Municipalities................. Municipal operators of 924110
community and non-
transient non-
community water
systems required to
monitor.
------------------------------------------------------------------------
\1\ North American Industry Classification System.
This table is not intended to be exhaustive, but rather provides a
guide for readers regarding entities likely to be interested in this
action. Other types of entities not listed in the table could also have
some interest. To determine whether your facility is affected by this
action, you should carefully examine the applicability language in the
Code of Federal Regulations (CFR) at 40 CFR 141.2 (definition of a
public water system). If you have questions regarding the applicability
of this action to a particular entity, consult the person listed in the
preceding FOR FURTHER INFORMATION CONTACT section.
Abbreviations and Acronyms Used in This Action
CFR: Code of Federal Regulations
EPA: United States Environmental Protection Agency
LED: Light emitting diode
NAICS: North American Industry Classification System
QC: Quality Control
SDWA: The Safe Drinking Water Act
VCSB: Voluntary Consensus Standard Bodies
II. Background
A. What is the purpose of this action?
In this action, EPA is approving seven analytical methods for
determining contaminant concentrations in drinking water samples
collected under SDWA. Regulated entities required to sample and monitor
may use either the testing methods already established in existing
regulations or the alternative testing methods being approved in this
action or in prior expedited approval actions. The new methods are
listed along with other methods similarly approved through previous
expedited actions in 40 CFR part 141, appendix A to subpart C and on
EPA's drinking water methods website at https://www.epa.gov/dwanalyticalmethods.
B. What is the basis for this action?
When EPA determines that an alternative analytical method is
``equally effective'' (i.e., as effective as a method that has already
been promulgated in the regulations), SDWA allows EPA to approve the
use of the alternative testing method through publication in the
Federal Register (see section 1401(1) of SDWA). EPA is using this
streamlined approval authority to make seven additional methods
available for determining contaminant concentrations in drinking water
samples collected under SDWA. EPA has determined that, for each
contaminant or group of contaminants listed in section III of this
preamble, the additional testing methods being approved in this action
are as effective as one or more of the testing methods already approved
in the regulations for those contaminants. Section 1401(1) of SDWA
states that the newly approved methods ``shall be treated as an
alternative for public water systems to the quality control and testing
procedures listed in the regulation.'' Accordingly, this action makes
these additional seven analytical methods legally available as options
for meeting EPA's monitoring requirements.
This action does not add regulatory language, but does, for
informational purposes, update an appendix to the regulations at 40 CFR
part 141 that lists all methods approved under section 1401(1) of SDWA.
Accordingly, while this action is not a rule, it is updating CFR text
and therefore is being published in the ``Final Rules'' section of the
Federal Register.
III. Summary of Approvals
EPA is approving seven methods that are equally effective relative
to methods previously promulgated in the regulations. By means of this
action, these seven methods are added to appendix A to subpart C of 40
CFR part 141.
A. Methods Developed by EPA
1. EPA Method 904.0, Revision 1.0. Radium-228 in Drinking Water
(USEPA 2022). EPA Method 904.0 (USEPA 1980) was published in the
drinking water regulations at 40 CFR 141.25(a) as an approved method
for radium-228. The approved method describes a single-point
calibration, contains no quality control specifications, and provides
no calculation for the drinking water detection limit. EPA Method
904.0, Revision 1.0 was developed in response to comments from
stakeholders requesting a method revision that provides clearly defined
calibration and quality control criteria to assure a more robust
procedure capable of yielding consistent and reliable analytical
results. The primary analytical steps in Revision 1.0 are unchanged
relative to the approved method.
The revised method contains detailed instructions on preparing an
appropriate calibration curve based on the allowable yield ranges
instead of relying on a single-point calibration. Assessing the
efficiency based on a yield range will improve the accuracy in the
final
[[Page 50577]]
calculated activity whereas a single-point calibration assumes that
every sample will yield the same mass of solid precipitate.
The revised method contains the quality control specifications that
laboratories must follow in order to obtain and maintain Method 904.0,
Revision 1.0 certification to analyze drinking water compliance
samples. In addition to incorporation of specific quality control
requirements and acceptance criteria, the revised method contains
options for yield determinations. In EPA Method 904.0, two different
yields are monitored based on the precipitated products; namely,
radium-228 is separated from the sample by co-precipitation with barium
sulfate, then ingrown actinium-228 is separated by co-precipitation
with yttrium oxalate. The currently approved method relies on
gravimetric determination of the final barium sulfate precipitate to
estimate the fractional yield of radium carried on the precipitate. The
revised method allows the option to incorporate barium-133 as a
radiochemical yield monitor. Barium-133 is a non-interfering gamma
emitter that is carried through the precipitation and complexation
steps along with radium-228. Incorporation of a radiochemical yield
monitor provides a sensitive option to assess yield based on activity
instead of mass. The currently approved method also describes
preparation of a final yttrium oxalate nonahydrate precipitate to
determine the fractional yield of actinium-228 carried on the
precipitate. Yttrium oxalate can be precipitated in the form of several
different hydrates with the predominate form dependent on the pH. This
issue is not discussed in the original method and can increase
variability in the yield results. The revised method discusses the
importance of pH control and includes the option to convert the yttrium
oxalate nonahydrate to yttrium oxide to eliminate the issue posed by
the presence of multiple hydrates.
The revised method contains an expanded ``calculations'' section
that includes the appropriate equation for determining the radionuclide
drinking water detection limit as defined in the regulations at 40 CFR
141.25(c).
EPA has determined that EPA Method 904.0, Revision 1.0 is equally
effective for determining radium-228 in drinking water samples,
relative to the approved method. The basis for this determination is
discussed in greater detail in Smith 2022a. Therefore, EPA is approving
EPA Method 904.0, Revision 1.0 for determining radium-228 in drinking
water. EPA Method 904.0, Revision 1.0 is available at the National
Service Center for Environmental Publications at https://www.epa.gov/nscep.
B. Methods Developed by Voluntary Consensus Standard Bodies (VCSB)
1. ASTM International. EPA compared the most recent versions of
three ASTM International methods to the earlier versions of those
methods that are currently approved in 40 CFR part 141. Changes between
the earlier approved version and the most recent version of each method
are described more fully in Smith 2022b. The revisions involve
primarily editorial changes (e.g., updated references, definitions,
terminology, procedural clarifications, and reorganization of text).
The revised methods are the same as the approved versions with respect
to sample collection and handling protocols, sample preparation,
analytical methodology, and method performance data; thus, EPA finds
they are equally effective relative to the approved methods.
EPA is thus approving the use of the following ASTM methods for the
contaminants and their respective regulations listed in the following
table:
----------------------------------------------------------------------------------------------------------------
ASTM revised version Approved method Contaminant(s) Regulation citations
----------------------------------------------------------------------------------------------------------------
D 4785-20 (ASTM 2020a)............ D 4785-00 (ASTM 2000) Radioactive iodine, 40 CFR 141.25(a).
gamma emitters.
D 4107-20 (ASTM 2020b)............ D 4107-98 (ASTM Tritium............. 40 CFR 141.25(a).
1998a).
D 5317-20 (ASTM 2020c)............ D 5317-98 (ASTM 2,4-D, 40 CFR 141.24(e)(1).
1998b). Pentachlorophenol,
Picloram, 2,4,5-TP.
----------------------------------------------------------------------------------------------------------------
The ASTM methods are available from ASTM International, 100 Barr
Harbor Drive, West Conshohocken, PA 19428-2959 or https://www.astm.org.
C. Methods Developed by Vendors
1. Tintometer Lovibond TB 3500 Method--Measurement of Drinking
Water Turbidity of a Captured Sample Using a Lovibond White Light LED
Portable Turbidimeter (Tintometer 2021a). The Tintometer Lovibond TB
3500 Method uses white light emitting diode (LED) nephelometry in a
portable turbidimeter to measure turbidity in drinking water. The LED
emits white light in the visible spectrum between 380 nm and 780 nm,
with spectral peak response between 400 nm and 600 nm. The method is
based on a comparison of the intensity of light scattered by a drinking
water sample under defined conditions with the intensity of light
scattered by a standard reference suspension.
Approved methods for turbidity are listed at 40 CFR 141.74(a)(1).
The performance characteristics of the Lovibond TB 3500 Method were
compared to the performance characteristics of the approved Hach
FilterTrak Method 10133 (Hach Company 2000) and continuous online
process Tintometer Lovibond PTV 1000 method (Tintometer 2016a). The
validation study report (Tintometer 2021b) summarizes the results
obtained from the turbidimeters tested at three different utilities.
Each utility used surface water sources, but different treatment
technologies. Method precision, bias, linearity, limits of detection,
and reporting limits were determined at the first site, with subsequent
sites being used for direct ATP candidate-, reference-, and process-
method comparability.
EPA has determined that the Lovibond TB 3500 Method is equally
effective relative to Hach FilterTrak Method 10133. The basis for this
determination is discussed in Adams 2022a. Therefore, EPA is approving
the Lovibond TB 3500 Method for determining turbidity in drinking
water. A copy of the method is available from Tintometer, Inc., 6456
Parkland Drive, Sarasota, FL 34243.
2. Tintometer Lovibond TB 5000 Method--Measurement of Drinking
Water Turbidity of a Captured Sample Using a Lovibond 660-nm LED
Portable Turbidimeter (Tintometer 2021c). The Tintometer Lovibond TB
5000 Method uses light emitting diode (LED) nephelometry in a portable
turbidimeter to measure turbidity in drinking water. The LED emits 660-
nm light to reduce interferences due to dissolved organics and sample
color. The method is based on a comparison of the intensity of light
scattered by a drinking water sample under defined conditions with the
intensity of light scattered by a standard reference suspension.
Approved methods for turbidity are listed at 40 CFR 141.74(a)(1).
The
[[Page 50578]]
performance characteristics of the Lovibond TB 5000 Method were
compared to the performance characteristics of the approved Hach
FilterTrak Method 10133 (Hach Company 2000) and continuous online
process Tintometer Lovibond PTV 2000 method (Tintometer 2016b). The
validation study report (Tintometer 2021b) summarizes the results
obtained from the turbidimeters placed online at three different
utilities. Each utility used surface water sources, but different
treatment technologies. Method precision, bias, linearity, limits of
detection, and reporting limits were determined at the first site, with
subsequent sites being used for direct ATP candidate-, reference-, and
process-method comparability.
EPA has determined that the Lovibond TB 5000 Method is equally
effective relative to Hach FilterTrak Method 10133. The basis for this
determination is discussed in Adams 2022b. Therefore, EPA is approving
the Lovibond TB 5000 Method for determining turbidity in drinking
water. A copy of the method is available from Tintometer, Inc., 6456
Parkland Drive, Sarasota, FL 34243.
3. Tintometer Lovibond TB 6000 Method--Measurement of Drinking
Water Turbidity of a Captured Sample Using a Lovibond Portable Laser
Turbidimeter (Tintometer 2021d). The Tintometer Lovibond TB 6000 Method
uses laser nephelometry in a portable turbidimeter to measure turbidity
in drinking water. The method uses a laser diode with a peak emitting
center wavelength between 650 nm and 690 nm. The method is based on a
comparison of the intensity of light scattered by a drinking water
sample under defined conditions with the intensity of light scattered
by a standard reference suspension.
Approved methods for turbidity are listed at 40 CFR 141.74(a)(1).
The performance characteristics of the Lovibond TB 6000 Method were
compared to the performance characteristics of the approved Hach
FilterTrak Method 10133 (Hach Company 2000) and continuous online
process Tintometer Lovibond PTV 6000 method (Tintometer 2016c). The
validation study report (Tintometer 2021b) summarizes the results
obtained from the turbidimeters placed online at three different
utilities. Each utility used surface water sources, but different
treatment technologies. Method precision, bias, linearity, limits of
detection, and reporting limits were determined at the first site, with
subsequent sites being used for direct ATP candidate-, reference-, and
process-method comparability.
EPA has determined that the Lovibond TB 6000 Method is equally
effective relative to Hach Filter TrakMethod 10133. The basis for this
determination is discussed in Adams 2022c. Therefore, EPA is approving
the Lovibond TB 6000 Method for determining turbidity in drinking
water. A copy of the method is available from Tintometer, Inc., 6456
Parkland Drive, Sarasota, FL 34243.
IV. Statutory and Executive Order Reviews
As noted in section II of this preamble, under the terms of SDWA
section 1401(1), this streamlined method approval action is not a rule.
Accordingly, the Congressional Review Act, 5 U.S.C. 801 et seq., as
added by the Small Business Regulatory Enforcement Fairness Act of
1996, does not apply because this action is not a rule for purposes of
5 U.S.C. 804(3). Similarly, this action is not subject to the
Regulatory Flexibility Act because it is not subject to notice and
comment requirements under the Administrative Procedure Act or any
other statute. In addition, because this approval action is not a rule,
but simply makes alternative testing methods available as options for
monitoring under SDWA, EPA has concluded that other statutes and
executive orders generally applicable to rulemaking do not apply to
this approval action.
V. References
Adams, W. 2022a. Memo to the record describing basis for expedited
approval of Tintometer Lovibond TB 3500 turbidimeter. February 9,
2022. (Available at https://www.regulations.gov; docket ID No. EPA-
HQ-OW-2022-0407.)
Adams, W. 2022b. Memo to the record describing basis for expedited
approval of Tintometer Lovibond TB 5000 turbidimeter. February 9,
2022. (Available at https://www.regulations.gov; docket ID No. EPA-
HQ-OW-2022-0407.)
Adams, W. 2022c. Memo to the record describing basis for expedited
approval of Tintometer Lovibond TB 6000 turbidimeter. February 9,
2022. (Available at https://www.regulations.gov; docket ID No. EPA-
HQ-OW-2022-0407.)
ASTM International. 1998a. ASTM D 4107-98. Standard Test Method for
Tritium in Drinking Water. ASTM International, 100 Barr Harbor
Drive, West Conshohocken, PA 19428-2959. (Available at https://www.astm.org.)
ASTM International. 1998b. ASTM D 5317-98. Standard Test Method for
Determination of Chlorinated Organic Acid Compounds in Water by Gas
Chromatography with an Electron Capture Detector. ASTM
International, 100 Barr Harbor Drive, West Conshohocken, PA 19428-
2959. (Available at https://www.astm.org.)
ASTM International. 2000. ASTM D 4785-00. Standard Test Method for
Low-Level Analysis of Iodine Radioisotopes in Water. ASTM
International, 100 Barr Harbor Drive, West Conshohocken, PA 19428-
2959. (Available at https://www.astm.org.)
ASTM International. 2020a. ASTM D 4785-20. Standard Test Method for
Low-Level Analysis of Iodine Radioisotopes in Water. ASTM
International, 100 Barr Harbor Drive, West Conshohocken, PA 19428-
2959. (Available at https://www.astm.org.)
ASTM International. 2020b. ASTM D 4107-20. Standard Test Method for
Tritium in Drinking Water. ASTM International, 100 Barr Harbor
Drive, West Conshohocken, PA 19428-2959. (Available at https://www.astm.org.)
ASTM International. 2020c. ASTM D 5317-20. Standard Test Method for
Determination of Chlorinated Organic Acid Compounds in Water by Gas
Chromatography with an Electron Capture Detector. ASTM
International, 100 Barr Harbor Drive, West Conshohocken, PA 19428-
2959. (Available at https://www.astm.org.)
Hach Company. 2000. Hach FilterTrak Method 10133. Determination of
Turbidity by Laser Nephelometry. January 2000, Revision 2.0. Hach
Company, 5600 Lindbergh Drive, Loveland, Colorado 80539. (Available
at https://www.regulations.gov; docket ID No. EPA-HQ-OW-2022-0407.)
Smith, G. 2022a. Memo to the record describing basis for expedited
approval of EPA Method 904.0, Revision 1.0. January 10, 2022.
(Available at https://www.regulations.gov; docket ID No. EPA-HQ-OW-
2022-0407.)
Smith, G. 2022b. Memo to the record describing basis for expedited
approval of updated methods from ASTM International. January 5,
2022. (Available at https://www.regulations.gov; docket ID No. EPA-
HQ-OW-2022-0407.)
Tintometer 2016a. Continuous Measurement of Drinking Water Turbidity
using a Lovibond PTV 1000 White Light LED Turbidimeter--The Lovibond
White Light Method. December 2016. Revision 1.0. Tintometer, Inc.
6456 Parkland Drive, Sarasota, FL 34243. (Available at https://www.regulations.gov; docket ID No. EPA-HQ-OW-2022-0407.)
Tintometer 2016b. Continuous Measurement of Drinking Water Turbidity
using a Lovibond PTV 2000 660-nm LED Turbidimeter--The Lovibond 660-
nm LED Method. December 2016. Revision 1.0. Tintometer, Inc. 6456
Parkland Drive, Sarasota, FL 34243. (Available at https://www.regulations.gov; docket ID No. EPA-HQ-OW-2022-0407.)
Tintometer 2016c. Continuous Measurement of Drinking Water Turbidity
using a Lovibond PTV 6000 Laser Turbidimeter--The Lovibond 6000
Laser
[[Page 50579]]
Method. December 2016. Revision 1.0. Tintometer, Inc. 6456 Parkland
Drive, Sarasota, FL 34243. (Available at https://www.regulations.gov; docket ID No. EPA-HQ-OW-2022-0407.)
Tintometer 2021a. Lovibond TB 3500: Measurement of a Captured Sample
using a Lovibond White Light LED Portable Turbidimeter. May 2021.
Revision 1.0. Tintometer, Inc. 6456 Parkland Drive, Sarasota, FL
34243. (Available at https://www.regulations.gov; docket ID No. EPA-
HQ-OW-2022-0407.)
Tintometer 2021b. Alternate Test Procedure (ATP) Validation Study
Report for the Measurement of Drinking Water Turbidity up to 10 NTU
using the Lovibond Portable Turbidimeter Methods. April 26, 2021.
Tintometer, Inc. 6456 Parkland Drive, Sarasota, FL 34243. (Available
at https://www.regulations.gov; docket ID No. EPA-HQ-OW-2022-0407.)
Tintometer 2021c. Lovibond TB 5000: Measurement of Drinking Water
Turbidity of a Captured Sample using a Lovibond 660-nm LED Portable
Turbidimeter. May 2021. Revision 1.0. Tintometer, Inc. 6456 Parkland
Drive, Sarasota, FL 34243. (Available at https://www.regulations.gov; docket ID No. EPA-HQ-OW-2022-0407.)
Tintometer 2021d. Lovibond TB 6000: Measurement of Drinking Water
Turbidity of a Captured Sample using a Lovibond Portable Laser
Turbidimeter. May 2021. Revision 1.0. Tintometer, Inc. 6456 Parkland
Drive, Sarasota, FL 34243. (Available at https://www.regulations.gov; docket ID No. EPA-HQ-OW-2022-0407.)
USEPA. 1980. EPA Method 904.0. Radium-228 in Drinking Water in
``Prescribed Procedures for Measurement of Radioactivity in Drinking
Water,'' EPA-600/4-80-032, August 1980. (Available at https://www.regulations.gov; docket ID No. EPA-HQ-OW-2022-0407.)
USEPA. 2022. EPA Method 904.0, Revision 1.0. Radium-228 in Drinking
Water. EPA 815-B-22-003. March 2022. (Available at https://www.regulations.gov; docket ID No. EPA-HQ-OW-2022-0407.)
List of Subjects in 40 CFR Part 141
Environmental protection, Chemicals, Indians--lands,
Intergovernmental relations, Reporting and recordkeeping requirements,
Water supply.
Jennifer L. McLain,
Director, Office of Ground Water and Drinking Water.
For the reasons stated in the preamble, the Environmental
Protection Agency amends 40 CFR part 141 as follows:
PART 141--NATIONAL PRIMARY DRINKING WATER REGULATIONS
0
1. The authority citation for part 141 continues to read as follows:
Authority: 42 U.S.C. 300f, 300g-1, 300g-2, 300g-3, 300g-4,
300g-5, 300g-6, 300j-4, 300j-9, and 300j-11.
0
2. Amend appendix A to subpart C of Part 141 by:
0
a. Revise the table entitled ``ALTERNATIVE TESTING METHODS FOR
CONTAMINANTS LISTED AT 40 CFR 141.24(e)(1)'';
0
b. In the table entitled ``ALTERNATIVE TESTING METHODS FOR CONTAMINANTS
LISTED AT 40 CFR 141.25(a)'' revise the entries for ``Radium 228,''
``Radioactive Iodine,'' ``Tritium,'' and ``Gamma Emitters'';
0
c. In the table entitled ``ALTERNATIVE TESTING METHODS FOR CONTAMINANTS
LISTED AT 40 CFR 141.74(a)(1)'' revise the entry for ``Turbidity'';
0
d. Revise footnotes ``7'', ``10'', ``11'', ``12'', ``15'', ``18'',
``19'', ``27'', ``30'', ``47'', and ``50''; and,
0
e. Add footnotes 62 through 65.
The revisions and additions read as follows:
APPENDIX A TO SUBPART C OF PART 141--ALTERNATIVE TESTING METHODS
APPROVED FOR ANALYSES UNDER THE SAFE DRINKING WATER ACT
* * * * *
Alternative Testing Methods for Contaminants Listed at 40 CFR 141.24 (e)(1)
--------------------------------------------------------------------------------------------------------------------------------------------------------
SM 22nd
SM 21st edition edition,\28\ SM
Contaminant Methodology EPA method \1\ 23rd edition SM Online \ 3\ ASTM \4\ Other
\49\
--------------------------------------------------------------------------------------------------------------------------------------------------------
Benzene...................... Purge &Trap/Gas \9\ 524.3, \29\
Chromatography/ 524.4..
Mass
Spectrometry.
Carbon tetrachloride......... Purge &Trap/Gas \9\ 524.3, \29\
Chromatography/ 524.4..
Mass
Spectrometry.
Chlorobenzene................ Purge &Trap/Gas \9\ 524.3, \29\
Chromatography/ 524.4..
Mass
Spectrometry.
1,2-Dichlorobenzene.......... Purge &Trap/Gas \9\ 524.3, \29\
Chromatography/ 524.4..
Mass
Spectrometry.
1,4-Dichlorobenzene.......... Purge &Trap/Gas \9\ 524.3, \29\
Chromatography/ 524.4..
Mass
Spectrometry.
1,2-Dichloroethane........... Purge &Trap/Gas \9\ 524.3, \29\
Chromatography/ 524.4..
Mass
Spectrometry.
cis-Dichloroethylene......... Purge &Trap/Gas \9\ 524.3, \29\
Chromatography/ 524.4..
Mass
Spectrometry.
trans-Dichloroethylene....... Purge &Trap/Gas \9\ 524.3, \29\
Chromatography/ 524.4..
Mass
Spectrometry.
Dichloromethane.............. Purge &Trap/Gas \9\ 524.3, \29\
Chromatography/ 524.4..
Mass
Spectrometry.
[[Page 50580]]
1,2-Dichloropropane.......... Purge &Trap/Gas \9\ 524.3, \29\
Chromatography/ 524.4..
Mass
Spectrometry.
Ethylbenzene................. Purge &Trap/Gas \9\ 524.3, \29\
Chromatography/ 524.4..
Mass
Spectrometry.
Styrene...................... Purge &Trap/Gas \9\ 524.3, \29\
Chromatography/ 524.4..
Mass
Spectrometry.
Tetrachloroethylene.......... Purge &Trap/Gas \9\ 524.3, \29\
Chromatography/ 524.4..
Mass
Spectrometry.
1,1,1-Trichloroethane........ Purge &Trap/Gas \9\ 524.3, \29\
Chromatography/ 524.4..
Mass
Spectrometry.
Trichloroethylene............ Purge &Trap/Gas \9\ 524.3, \29\
Chromatography/ 524.4..
Mass
Spectrometry.
Toluene...................... Purge &Trap/Gas \9\ 524.3, \29\
Chromatography/ 524.4..
Mass
Spectrometry.
1,2,4-Trichlorobenzene....... Purge &Trap/Gas \9\ 524.3, \29\
Chromatography/ 524.4..
Mass
Spectrometry.
1,1-Dichloroethylene......... Purge &Trap/Gas \9\ 524.3, \29\
Chromatography/ 524.4..
Mass
Spectrometry.
1,1,2-Trichlorethane......... Purge &Trap/Gas \9\ 524.3, \29\
Chromatography/ 524.4..
Mass
Spectrometry.
Vinyl chloride............... Purge &Trap/Gas \9\ 524.3, \29\
Chromatography/ 524.4..
Mass
Spectrometry.
Xylenes (total).............. Purge &Trap/Gas \9\ 524.3, \29\
Chromatography/ 524.4..
Mass
Spectrometry.
2,4-D........................ Gas ................ 6640 B.......... 6640 B.......... 6640 B-01, B-06 D 5317-20. ...............
Chromatography/
Electron
Capture
Detection (GC/
ECD).
2,4,5-TP (Silvex)............ Gas ................ 6640 B.......... 6640 B.......... 6640 B-01, B-06 D 5317-20. ...............
Chromatography/
Electron
Capture
Detection (GC/
ECD).
Alachlor..................... Solid Phase \24\ 525.3.
Extraction/Gas
Chromatography/
Mass
Spectrometry
(GC/MS).
Atrazine..................... Liquid \25\ 536.
Chromatography
Electrospray
Ionization
Tandem Mass
Spectrometry
(LC/ESI-MS/MS).
Solid Phase \24\ 525.3, \26\
Extraction/Gas 523.
Chromatography/
Mass
Spectrometry
(GC/MS)
[[Page 50581]]
Benzo(a)pyrene............... Solid Phase \24\ 525.3......
Extraction/Gas
Chromatography/
Mass
Spectrometry
(GC/MS).
Carbofuran................... High-performance ................ 6610 B.......... 6610 B.......... 6610 B-04.
liquid
chromatography
(HPLC) with
post-column
derivatization
and
fluorescence
detection.
Liquid ................ ................ ................ ............... ............... \58\ ME 531
Chromatography/
Mass
Spectrometry.
Chlordane.................... Solid Phase \24\ 525.3......
Extraction/Gas
Chromatography/
Mass
Spectrometry
(GC/MS).
Dalapon...................... Ion \14\ 557.
Chromatography
Electrospray
Ionization
Tandem Mass
Spectrometry
(IC-ESI-MS/MS).
Gas ................ 6640 B.......... 6640 B.......... 6640 B-01, B-
Chromatography/ 06.
Electron
Capture
Detection (GC/
ECD).
Di(2-ethylhexyl)adipate...... Solid Phase \24\ 525.3.
Extraction/Gas
Chromatography/
Mass
Spectrometry
(GC/MS).
Di(2-ethylhexyl)phthalate.... Solid Phase \24\ 525.3.
Extraction/Gas
Chromatography/
Mass
Spectrometry
(GC/MS).
Dibromochloropropane (DBCP).. Purge &Trap/Gas \9\ 524.3.
Chromatography/
Mass
Spectrometry.
Dinoseb...................... Gas ................ 6640 B.......... 6640 B.......... 6640 B-01, B-
Chromatography/ 06.
Electron
Capture
Detection (GC/
ECD).
Endrin....................... Solid Phase \24\ 525.3.
Extraction/Gas
Chromatography/
Mass
Spectrometry
(GC/MS).
Ethyl dibromide (EDB)........ Purge &Trap/Gas \9\ 524.3.
Chromatography/
Mass
Spectrometry.
Glyphosate................... High-Performance ................ 6651 B.......... 6651 B.......... 6651 B-00, B-
Liquid 05.
Chromatography
(HPLC) with
Post-Column
Derivatization
and
Fluorescence
Detection.
[[Page 50582]]
Heptachlor................... Solid Phase \24\ 525.3.
Extraction/Gas
Chromatography/
Mass
Spectrometry
(GC/MS).
Heptachlor Epoxide........... Solid Phase \24\ 525.3.
Extraction/Gas
Chromatography/
Mass
Spectrometry
(GC/MS).
Hexachlorobenzene............ Solid Phase \24\ 525.3.
Extraction/Gas
Chromatography/
Mass
Spectrometry
(GC/MS).
Hexachlorocyclo-pentadiene... Solid Phase \24\ 525.3.
Extraction/Gas
Chromatography/
Mass
Spectrometry
(GC/MS).
Lindane...................... Solid Phase \24\ 525.3.
Extraction/Gas
Chromatography/
Mass
Spectrometry
(GC/MS).
Methoxychlor................. Solid Phase \24\ 525.3.
Extraction/Gas
Chromatography/
Mass
Spectrometry
(GC/MS).
Oxamyl....................... High-performance ................ 6610 B.......... 6610 B.......... 6610 B-04.
liquid
chromatography
(HPLC) with
post-column
derivatization
and
fluorescence
detection.
Liquid ................ ................ ................ ............... ............... \58\ ME 531.
Chromatography/
Mass
Spectrometry.
PCBs (as Aroclors)........... Solid Phase \24\ 525.3.
Extraction/Gas
Chromatography/
Mass
Spectrometry
(GC/MS).
Pentachlorophenol............ Gas ................ 6640 B.......... 6640 B.......... 6640 B-01, B-06 D 5317-20.
Chromatography/
Electron
Capture
Detection (GC/
ECD).
Solid Phase \24\ 525.3.
Extraction/Gas
Chromatography/
Mass
Spectrometry
(GC/MS).
Picloram..................... Gas ................ 6640 B.......... 6640 B.......... 6640 B-01, B-06 D 5317-20...... ...............
Chromatography/
Electron
Capture
Detection (GC/
ECD).
Simazine..................... Liquid \25\ 536.
Chromatography
Electrospray
Ionization
Tandem Mass
Spectrometry
(LC/ESI-MS/MS).
[[Page 50583]]
Solid Phase \24\ 525.3, \26\
Extraction/Gas 523.
Chromatography/
Mass
Spectrometry
(GC/MS).
Toxaphene.................... Solid Phase \24\ 525.3.
Extraction/Gas
Chromatography/
Mass
Spectrometry
(GC/MS).
Total Trihalomethanes........ Purge &Trap/Gas \9\ 524.3, \29\
Chromatography/ 524.4.
Mass
Spectrometry.
--------------------------------------------------------------------------------------------------------------------------------------------------------
Alternative Testing Methods for Contaminants Listed at 40 CFR 141.25(a)
--------------------------------------------------------------------------------------------------------------------------------------------------------
SM 22nd
Contaminant Methodology EPA method SM 21st edition edition,\28\ SM ASTM \4\ SM Online \3\
\1\ 23rd edition \49\
--------------------------------------------------------------------------------------------------------------------------------------------------------
* * * * * * *
Radium 228...................... Radiochemical..... 904.0, Rev. 1.0 7500-Ra D......... 7500-Ra D.
\62\.
Gamma Spectrometry .................. .................. 7500-Ra E......... .................. 7500-Ra E-07.
* * * * * * *
Radioactive Iodine.............. Radiochemical..... .................. 7500-I B, 7500-I 7500-I B, 7500-I D 3649-06.
C, 7500-I D. C, 7500-I D.
Gamma Ray .................. 7120.............. 7120.............. D 4785-08, -20. ..................
Spectrometry.
* * * * * * *
Tritium......................... Liquid .................. 7500-\3\ H B...... 7500-\3\ H B...... D 4107-08, -20
Scintillation.
Gamma Emitters.................. Gamma Ray .................. 7120, 7500-Cs B, 7120, 7500-Cs B, D 3649-06, D 4785- ..................
Spectrometry. 7500-I B. 7500-I B. 08, -20.
--------------------------------------------------------------------------------------------------------------------------------------------------------
Alternative Testing Methods for Contaminants Listed at 40 CFR 141.74(a)(1)
--------------------------------------------------------------------------------------------------------------------------------------------------------
SM 21st edition SM 22nd edition SM 23rd edition
Organism Methodology \1\ \28\ \49\ SM online \3\ Other
--------------------------------------------------------------------------------------------------------------------------------------------------------
* * * * * * *
Turbidity....................... Nephelometric 2130 B............ 2130 B............ 2130 B............ .................. Hach Method 8195,
Method. Rev. 3.0.\52\
Laser Nephelometry .................. .................. .................. .................. Mitchell
(on-line). M5271,\10\
Mitchell M5331,
Rev. 1.2,\42\
Lovibond PTV
6000.\46\
LED Nephelometry .................. .................. .................. .................. Mitchell
(on-line). M5331,\11\
Mitchell M5331,
Rev. 1.2 \42\,
Lovibond PTV
2000.\45\
LED Nephelometry .................. .................. .................. .................. AMI Turbiwell,\15\
(on-line). Lovibond PTV
1000.\44\
LED Nephelometry .................. .................. .................. .................. Orion AQ4500,\12\
(portable). Lovibond TB
3500,\64\
Lovibond TB
5000.\65\
Laser Nephelometry .................. .................. .................. .................. Lovibond TB 6000
(portable). \63\.
360[deg] .................. .................. .................. .................. Hach Method 10258,
Nephelometry. Rev. 1.0,\39\
Hach Method
10258, Rev.
2.0.\51\
--------------------------------------------------------------------------------------------------------------------------------------------------------
* * * * * * *
\1\ Standard Methods for the Examination of Water and Wastewater, 21st edition (2005). Available from American Public Health Association, 800 I Street
NW, Washington, DC 20001-3710.
* * * * * * *
\3\ Standard Methods Online are available at https://www.standardmethods.org. The year in which each method was approved by the Standard Methods
Committee is designated by the last two digits in the method number. The methods listed are the only online versions that may be used.
\4\ Available from ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959 or https://astm.org. The methods listed are the only
alternative versions that may be used.
* * * * * * *
\7\ Method ME355.01, Revision 1.0. ``Determination of Cyanide in Drinking Water by GC/MS Headspace,'' May 26, 2009. Available at https://www.nemi.gov or
from James Eaton, H & E Testing Laboratory, 221 State Street, Augusta, ME 04333. (207) 287-2727.
* * * * * * *
\9\ EPA Method 524.3, Version 1.0. ``Measurement of Purgeable Organic Compounds in Water by Capillary Column Gas Chromatography/Mass Spectrometry.''
June 2009. EPA 815-B-09-009. Available at https://www.nemi.gov.
\10\ Mitchell Method M5271, Revision 1.1. ``Determination of Turbidity by Laser Nephelometry,'' March 5, 2009. Available at https://www.nemi.gov or from
Leck Mitchell, Ph.D., PE, 656 Independence Valley Dr., Grand Junction, CO 81507.
[[Page 50584]]
\11\ Mitchell Method M5331, Revision 1.1. ``Determination of Turbidity by LED Nephelometry,'' March 5, 2009. Available at https://www.nemi.gov or from
Leck Mitchell, Ph.D., PE, 656 Independence Valley Dr., Grand Junction, CO 81507.
\12\ Orion Method AQ4500, Revision 1.0. ``Determination of Turbidity by LED Nephelometry,'' May 8, 2009. Available at https://www.nemi.gov or from
Thermo Scientific, 166 Cummings Center, Beverly, MA 01915, https://www.thermo.com.
* * * * * * *
\14\ EPA Method 557. ``Determination of Haloacetic Acids, Bromate, and Dalapon in Drinking Water by Ion Chromatography Electrospray Ionization Tandem
Mass Spectrometry (IC-ESI-MS/MS),'' September 2009. EPA 815-B-09-012. Available at https://www.nemi.gov.
\15\ AMI Turbiwell, ``Continuous Measurement of Turbidity Using a SWAN AMI Turbiwell Turbidimeter,'' August 2009. Available at https://www.nemi.gov or
from Markus Bernasconi, SWAN Analytische Instrumente AG, Studbachstrasse 13, CH-8340 Hinwil, Switzerland.
* * * * * * *
\18\ EPA Method 302.0. ``Determination of Bromate in Drinking Water using Two-Dimensional Ion Chromatography with Suppressed Conductivity Detection,''
September 2009. EPA 815-B-09-014. Available at https://www.nemi.gov.
\19\ EPA 415.3, Revision 1.2. ``Determination of Total Organic Carbon and Specific UV Absorbance at 254 nm in Source Water and Drinking Water,''
September 2009. EPA/600/R-09/122. Available at https://www.epa.gov/water-research/epa-drinking-water-research-methods.
* * * * * * *
\24\ EPA Method 525.3. ``Determination of Semivolatile Organic Chemicals in Drinking Water by Solid Phase Extraction and Capillary Column Gas
Chromatography/Mass Spectrometry (GC/MS).'' February 2012. EPA/600/R-12/010. Available at https://www.epa.gov/water-research/epa-drinking-water-research-methods.
\25\ EPA Method 536. ``Determination of Triazine Pesticides and their Degradates in Drinking Water by Liquid Chromatography Electrospray Ionization
Tandem Mass Spectrometry (LC/ESI-MS/MS).'' October 2007. EPA 815-B-07-002. Available at the National Service Center for Environmental Publications at
https://www.epa.gov/nscep.
\26\ EPA Method 523. ``Determination of Triazine Pesticides and their Degradates in Drinking Water by Gas Chromatography/Mass Spectrometry (GC/MS).''
February 2011. EPA 815-R-11-002. Available at the National Service Center for Environmental Publications at https://www.epa.gov/nscep.
\27\ EPA Method 1623.1. ``Cryptosporidium and Giardia in Water by Filtration/IMS/FA,'' 2012. EPA-816-R-12-001. Available at the National Service Center
for Environmental Publications at https://www.epa.gov/nscep.
\28\ Standard Methods for the Examination of Water and Wastewater, 22nd edition (2012). Available from American Public Health Association, 800 I Street
NW, Washington, DC 20001-3710.
\29\ EPA Method 524.4, Version 1.0. ``Measurement of Purgeable Organic Compounds in Water by Gas Chromatography/Mass Spectrometry using Nitrogen Purge
Gas.'' May 2013. EPA 815-R-13-002. Available at the National Service Center for Environmental Publications at https://www.epa.gov/nscep.
\30\ Charm Sciences Inc. ``Fast Phage Test Procedure. Presence/Absence for Coliphage in Ground Water with Same Day Positive Prediction''. Version 009.
November 2012. 659 Andover Street, Lawrence, MA 01843. Available at www.charmsciences.com.
* * * * * * *
\39\ Hach Company. ``Hach Method 10258--Determination of Turbidity by 360[deg] Nephelometry,'' January 2016. Revision 1.0. 5600 Lindbergh Drive, P.O.
Box 389, Loveland, CO 80539.
* * * * * * *
\42\ Mitchell Method M5331, Revision 1.2. ``Determination of Turbidity by LED or Laser Nephelometry,'' February 2016. Available from Leck Mitchell,
Ph.D., PE, 656 Independence Valley Dr., Grand Junction, CO 81507.
* * * * * * *
\44\ Lovibond PTV 1000. ``Continuous Measurement of Drinking Water Turbidity using a Lovibond PTV 1000 White Light LED Turbidimeter,'' December 2016.
Revision 1.0. Available from Tintometer, Inc., 6456 Parkland Drive, Sarasota, FL 34243.
\45\ Lovibond PTV 2000. ``Continuous Measurement of Drinking Water Turbidity Using a Lovibond PTV 2000 660-nm LED Turbidimeter,'' December 2016.
Revision 1.0. Available from Tintometer, Inc., 6456 Parkland Drive, Sarasota, FL 34243.
\46\ Lovibond PTV 6000. ``Continuous Measurement of Drinking Water Turbidity Using a Lovibond PTV 6000 Laser Turbidimeter,'' December 2016. Revision
1.0. Available from Tintometer, Inc., 6456 Parkland Drive, Sarasota, FL 34243.
\47\ Thermo Fisher. ``Thermo Fisher method 557.1: Determination of Haloacetic Acids in Drinking Water using Two-Dimensional Ion Chromatography with
Suppressed Conductivity Detection,'' January 2017. Version 1.0. Available from Thermo Fisher Scientific, 490 Lakeside Dr., Sunnyvale, CA 94085
([email protected]).
* * * * * * *
\49\ Standard Methods for the Examination of Water and Wastewater, 23rd edition (2017). Available from American Public Health Association, 800 I Street
NW, Washington, DC 20001-3710.
\50\ EPA Method 900.0, Rev. 1.0. ``Determination of Gross Alpha and Gross Beta in Drinking Water,'' February 2018. EPA 815-B-18-002. Available at the
National Service Center for Environmental Publications at https://www.epa.gov/nscep.
\51\ Hach Company. ``Hach Method 10258--Determination of Turbidity by 360[deg] Nephelometry.'' March 2018. Revision 2.0. 5600 Lindbergh Drive, P.O. Box
389, Loveland, CO 80539.
\52\ Hach Company. ``Hach Method 8195--Determination of Turbidity by Nephelometry.'' March 2018. Revision 3.0. 5600 Lindbergh Drive, P.O. Box 389,
Loveland, CO 80539.
* * * * * * *
\58\ ME 531, Version 1.0. ``Measurement of N-Methylcarbamoyloximes and N-Methylcarbamates in Drinking Water by LC-MS/MS. September 2019. Maine Health
Environmental Testing Laboratory, 221 State Street, Augusta, ME 04330.
* * * * * * *
\62\ EPA Method 904.0, Rev. 1.0. ``Radium-228 in Drinking Water.'' March 2022. EPA 815-B-22-003. Available at the National Service Center for
Environmental Publications at https://www.epa.gov/nscep.
\63\ Lovibond TB 6000. ``Measurement of Drinking Water Turbidity of a Captured Sample using a Lovibond Portable Laser Turbidimeter.'' May 2021. Revision
1.0. Available from Tintometer, Inc., 6456 Parkland Drive, Sarasota, FL 34243.
\64\ Lovibond TB 3500. ``Measurement of Drinking Water Turbidity of a Captured Sample using a Lovibond White Light LED Portable Turbidimeter.'' May
2021. Revision 1.0. Available from Tintometer, Inc., 6456 Parkland Drive, Sarasota, FL 34243.
\65\ Lovibond TB 5000. ``Measurement of Drinking Water Turbidity of a Captured Sample using a Lovibond 660-nm LED Portable Turbidimeter.'' May 2021.
Revision 1.0. Available from Tintometer, Inc., 6456 Parkland Drive, Sarasota, FL 34243.
[FR Doc. 2022-17651 Filed 8-16-22; 8:45 am]
BILLING CODE 6560-50-P