[Federal Register Volume 81, Number 138 (Tuesday, July 19, 2016)]
[Rules and Regulations]
[Pages 46839-46848]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2016-16516]
[[Page 46839]]
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ENVIRONMENTAL PROTECTION AGENCY
40 CFR Part 141
[EPA-HQ-OW-2016-0281; FRL-9948-54-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.
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SUMMARY: This action announces the U.S. Environmental Protection
Agency's (EPA's) approval of alternative testing methods for use in
measuring the levels of contaminants in drinking water and determining
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 16 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 July 19, 2016.
ADDRESSES: The EPA has established a docket for this action under
Docket ID No. EPA-HQ-2016-0281. All documents in the docket are listed
on the http://www.regulations.gov Web site. Although listed in the
index, some information is not publicly available, e.g., 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 http://www.regulations.gov.
FOR FURTHER INFORMATION CONTACT: The Safe Drinking Water Hotline (800)
426-4791 or 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].
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 test procedure 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 NAICS \1\
regulated entities
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State, local, & tribal governments.. State, local and 924110
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 221310
of community and
non-transient non-
community water
systems required
to monitor.
Municipalities...................... Municipal 924110
operators of
community and non-
transient non-
community water
systems required
to monitor.
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\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 affected by this
action. This table lists the types of entities that EPA is now aware
could potentially be affected by this action. Other types of entities
not listed in the table could also be impacted. 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 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
APHA: American Public Health Association
ATP: Alternate Test Procedure
CFR: Code of Federal Regulations
DPD: N,N-diethyl-p-phenylenediamine
EPA: United States Environmental Protection Agency
LED: Light Emitting Diode
NAICS: North American Industry Classification System
NEMI: National Environmental Methods Index
NTU: Nephelometric Turbidity Unit
QC: Quality Control
SDWA: The Safe Drinking Water Act
TOC: Total Organic Carbon
VCSB: Voluntary Consensus Standard Bodies
II. Background
A. What is the purpose of this action?
In this action, EPA is approving 16 analytical methods for
determining contaminant concentrations in drinking water samples
collected under SDWA. Regulated parties 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 Web site at https://www.epa.gov/dwanalyticalmethods.
[[Page 46840]]
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 method through publication in the Federal
Register (see Section 1401(1) of SDWA). EPA is using this streamlined
approval authority to make 16 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, 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 16
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 16 methods that are equally effective relative to
methods previously promulgated in the regulations. By means of this
rule, these 16 methods are added to appendix A to subpart C of 40 CFR
part 141.
A. Methods developed by Voluntary Consensus Standard Bodies (VCSB)
ASTM International. EPA compared the most recent versions of seven
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
summarized in Smith (2015). The revisions primarily involve 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:
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ASTM revised version Approved method Contaminant Regulation
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D 1253-14 (ASTM 2014a)............... D 1253-03 (ASTM 2003a). Free Chlorine; Total 40 CFR 141.74(a)(2); 40
Chlorine. CFR 141.131(c)(1).
D 1253-14 (ASTM 2014a)............... D 1253-03 (ASTM 2003a). Combined Chlorine...... 40 CFR 141.131(c)(1).
D 1125-14 A (ASTM 2014b)............. D 1125-95 A (ASTM 1995) Conductivity........... 40 CFR 141.23(k)(1).
D 511-14 A (ASTM 2014c).............. D 511-03 A (ASTM 2003b) Calcium; Magnesium..... 40 CFR 141.23(k)(1).
D 511-14 B (ASTM 2014c).............. D 511-03 B (ASTM 2003b) Calcium; Magnesium..... 40 CFR 141.23(k)(1).
D 1688-12 A (ASTM 2012a)............. D 1688-02 A (ASTM Copper................. 40 CFR 141.23(k)(1).
2002a).
D 1688-12 C (ASTM 2012a)............. D 1688-02 C (ASTM Copper................. 40 CFR 141.23(k)(1).
2002a).
D 3697-12 (ASTM 2012b)............... D 3697-02 (ASTM 2002b). Antimony............... 40 CFR 141.23(k)(1).
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The ASTM methods are available from ASTM International, 100 Barr
Harbor Drive, West Conshohocken, PA 19428-2959 or http://www.astm.org.
B. Methods Developed by Vendors
1. Hach Method 10241--Spectrophotometric Measurement of Free
Chlorine (Cl2) in Finished Drinking Water (Hach Company
2015a). In Hach Method 10241, free chlorine is converted to
monochloramine by addition of an ammonia solution to a drinking water
sample. In the presence of a cyanoferrate catalyst, monochloramine
reacts with a substituted phenol to form an intermediate monoamine
compound. The intermediate monoamine compound couples with excess
substituted phenol to form a green indophenol compound.
Spectrophotometric measurement of absorbance at 655 nm (610 nm for
colorimeters) is directly proportional to the concentration of free
chlorine in the sample.
The currently approved methods for free chlorine in drinking water
are listed in the tables at 40 CFR 141.74(a)(2) and 40 CFR
141.131(c)(1). One of the most widely used approved methods is Standard
Method 4500-Cl G-00 (APHA 2000a), which uses a N,N-diethyl-p-
phenylenediamine (DPD) indicator for spectrophotometric determination
of residual chlorine concentrations in drinking water. The DPD
methodology can be subject to interferences associated with the
presence of manganese, chloramines, and other oxidants. Hach Method
10241 is not subject to such interferences.
A multi-laboratory study compared the performance characteristics
of Hach Method 10241 to the performance characteristics of the approved
Standard Method 4500-Cl G-00. A variety of samples, including drinking
water samples from both surface water and ground water sources, were
fortified with known chlorine concentrations and analyzed by each
method. The results are summarized in the validation study report (Hach
Company 2015b). EPA has determined that Hach Method 10241 is equally as
effective as the approved Standard Method 4500-Cl G-00. The basis for
this determination is discussed in Adams and Smith (2016). Therefore,
EPA is approving Hach Method 10241 for determining free chlorine
concentrations in drinking water. Hach Method 10241 can be obtained
from Hach Company, 5600 Lindbergh Drive, Loveland, Colorado 80539.
(http://www.hach.com.)
2. Hach Method 8026--Spectrophotometric Measurement of Copper in
Finished Drinking Water (Hach Company 2015c). In Hach Method 8026,
cuprous copper is measured colorimetrically by complexation with
bicinchoninic acid. The intensity in color is proportional to the
copper concentration, and spectrophotometer measurements are taken at
560 nm. Cupric copper present in samples is chemically reduced to
cuprous copper. Metal and hardness interferences in samples are
mitigated through the use of a chelating agent. The method is performed
by the addition of
[[Page 46841]]
powder pillows containing reagents to the water samples.
The currently approved methods for the analysis of copper in
drinking water are listed in the table at 40 CFR 141.23(k)(1). The
approved methods are based on atomic spectroscopy technologies. Hach
Method 8026 employs a spectrophotometer, and is based on known
complexation principles and simple color/absorbance measurements to
determine copper concentrations.
A multi-laboratory validation study was conducted to compare the
performance of Hach Method 8026 to EPA Method 200.7 (USEPA 1994), one
of the approved methods for the analysis of copper in drinking water.
Multiple finished drinking water samples drawn from both ground water
and surface water sources were used in the validation study. Precision,
accuracy and sensitivity data were collected by analyzing drinking
water samples fortified with varying concentrations of copper
standards. The results are summarized in the validation study report
(Hach Company 2015d). EPA has determined that Hach Method 8026 is
equally as effective as the approved EPA Method 200.7. The basis for
this determination is discussed in Adams and Smith (2016). Therefore,
EPA is approving Hach Method 8026 for the analysis of copper in
drinking water. Hach Method 8026 can be obtained from Hach Company,
5600 Lindbergh Drive, Loveland, Colorado 80539. (http://www.hach.com).
3. Hach Method 10261--Total Organic Carbon in Finished Drinking
Water by Catalyzed Ozone Hydroxyl Radical Oxidation Infrared Analysis
(Hach Company 2015e). Hach Method 10261 is a method for the
determination of total organic carbon (TOC) in drinking water using an
advanced oxidation process and non-dispersive infrared spectroscopy. In
this method, ozone and a base are added to water to produce hydroxyl
radicals. The hydroxyl radicals oxidize organic carbon to produce
carbon dioxide and sodium oxalate. The sodium oxalate is further
oxidized to carbon dioxide using acidification and a manganese
catalyst. The carbon dioxide produced by both oxidation processes is
then measured using non-dispersive infrared spectroscopy.
The currently approved methods for the analysis of TOC in drinking
water are listed in 40 CFR 141.131(d)(3). The approved oxidation
method, Standard Method 5310 C-00 (APHA 2000b), may not completely
oxidize certain organic compounds. Hach Method 10261 uses a more
efficient advanced oxidation process to ensure more complete oxidation.
A multi-laboratory validation study was conducted to compare the
performance of Hach Method 10261 to the approved Standard Method 5310
C-00. Multiple finished drinking water samples drawn from both ground
water and surface water sources were used in the validation study.
Precision, accuracy and sensitivity data were collected by analyzing
drinking water samples fortified with varying concentrations of TOC.
The results are summarized in the validation study report (Hach Company
2015f). EPA has determined that Hach Method 10261 is equally as
effective as the approved Standard Method 5310 C-00. The basis for this
determination is discussed in Adams and Smith (2016). Therefore, EPA is
approving Hach Method 10261 for the analysis of TOC in drinking water.
Hach Method 10261 can be obtained from Hach Company, 5600 Lindbergh
Drive, Loveland, Colorado 80539. (http://www.hach.com).
4. Hach Method 10267--Spectrophotometric Measurement of Total
Organic Carbon (TOC) in Finished Drinking Water (Hach Company 2015g).
Hach Method 10267 is used for the determination of TOC in drinking
water using acid persulfate digestion and visible spectrum
spectrophotometry. In this method, samples are oxidized using acid
persulfate digestions to convert TOC into carbon dioxide. The generated
carbon dioxide is passed through a gas-permeable membrane into an
indicator solution that is measured spectrophotometrically at 435 nm.
Hach Method 10267 uses pre-packaged reagents to simplify sample
preparation and quickly perform the analysis. Interfering inorganic
carbon is removed from the sample prior to digestion by acidification
and agitation.
The currently approved methods for the analysis of TOC in drinking
water are listed in 40 CFR 141.131(d)(3). A multi-laboratory validation
study was conducted to compare the performance of Hach Method 10267 to
the approved Standard Method 5310 C-00 (APHA 200b). Multiple finished
drinking water samples drawn from both ground water and surface water
sources were used in the validation study. Precision, accuracy and
sensitivity data were collected by analyzing drinking water samples
fortified with varying concentrations of TOC. The results are
summarized in the validation study report (Hach Company 2015h). EPA has
determined that Hach Method 10267 is equally as effective as the
approved Standard Method 5310 C-00. The basis for this determination is
discussed in Adams and Smith (2016). Therefore, EPA is approving Hach
Method 10267 for the analysis of TOC in drinking water. Hach Method
10267 can be obtained from Hach Company, 5600 Lindbergh Drive,
Loveland, Colorado 80539. (http://www.hach.com).
5. Hach Method 10272--Spectrophotometric Measurement of Copper in
Finished Drinking Water (Hach Company 2015i). In Hach Method 10272,
cuprous copper is measured colorimetrically by complexation with
bicinchoninic acid. The intensity in color is proportional to the
copper concentration, and spectrophotometer measurements are taken at
560 nm. Cupric copper present in samples is chemically reduced to
cuprous copper. Metal and hardness interferences in samples are
mitigated through the use of a chelating agent. The method is performed
through the use of a copper Chemkey and portable analyzer.
The currently approved methods for the analysis of copper in
drinking water are listed in the table at 40 CFR 141.23(k)(1). The
approved methods are based on atomic spectroscopy technologies. Hach
Method 10272 uses a spectrophotometer, simple color/absorbance
measurements to determine copper concentrations, and incorporates
portability and streamlining into the analysis.
A multi-laboratory validation study was conducted to compare the
performance of Hach Method 10272 to EPA Method 200.7 (USEPA 1994), one
of the approved methods for the analysis of copper in drinking water.
Multiple finished drinking water samples drawn from both ground water
and surface water sources were used in the validation study. Precision,
accuracy and sensitivity data were collected by analyzing drinking
water samples fortified with varying concentrations of copper
standards. The results are summarized in the validation study report
(Hach Company 2015j). EPA has determined that Hach Method 10272 is
equally as effective as the approved EPA Method 200.7. The basis for
this determination is discussed in Adams and Smith (2016). Therefore,
EPA is approving Hach Method 10272 for the analysis of copper in
drinking water. Hach Method 10272 can be obtained from Hach Company,
5600 Lindbergh Drive, Loveland, Colorado 80539. (http://www.hach.com).
6. Hach Method 10258--Determination of Turbidity by 360[deg]
Nephelometry (Hach Company 2016). In Hach Method 10258 turbidity is
determined in conventional-filtered and membrane-filtered treated
drinking water using a 360 degree nephelometer.
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In this method, a non-incandescent light source operates at a
wavelength of 660 + 30 nm and light scattered by the sample is
collected and detected at an angle 90 degrees to the incident light,
360 degrees around the sample vial. This design offers improved
sensitivity (minimum quantitation limit of 0.0005 Nephelometric
Turbidity Units (NTU) and resolution (0.0001 NTU) relative to the
approved methods.
The currently approved methods for the analysis of turbidity in
treated drinking water are listed in the regulations at 40 CFR
141.74(a)(1). A multi-facility validation study was conducted to
compare the performance of Hach Method 10258 to the approved Hach
FilterTrak Method 10133 (Hach Company 2000) for the analysis of
turbidity in treated drinking water. Seven public drinking water
facilities participated in the study. Three facilities produced treated
water using both conventional-filtration and membrane-filtration, two
facilities produced only conventional-filtration treated water, and two
facilities produced only membrane-filtration treated water. Source
waters encompassed both surface waters and ground waters under the
direct influence of surface water. Turbidity comparison data were
collected at each facility by operating the instrument collecting the
Hach Method 10258 turbidity data in parallel with an instrument
collecting turbidity data using the approved Hach FilterTrack Method
10133. Precision and accuracy (based on recovery of matrix spike
injections) data were collected over a range of spike levels (0.0015-
0.500 NTU) and calibration verification data were collected from each
facility. The results are summarized in the validation study report
(Hach Company 2014). EPA has determined that Hach Method 10258 is
equally as effective as the approved Hach FilterTrak Method 10133. The
basis for this determination is discussed in Adams and Smith (2016).
Therefore, EPA is approving Hach Method 10258 for the analysis of
turbidity in treated drinking water. Hach Method 10258 can be obtained
from Hach Company, 5600 Lindbergh Drive, Loveland, Colorado 80539.
(http://www.hach.com).
7. Nitrate Elimination Company, Inc. (NECi)--Method for Nitrate
Reductase Nitrate-Nitrogen Analysis of Drinking Water (NECi 2016a). The
NECi nitrate reductase method is used for the determination of nitrate
plus nitrite (as nitrogen) in drinking water. In this method, a
eukaryotic nitrate reductase is used to catalyze the conversion of
nitrate to nitrite in the presence of nicotinamide adenine dinucleotide
as a reductant in a buffer with a near neutral pH. The combined nitrite
(both the original and reduced nitrate) is reacted with sulfanilamide
and N-(1-napthyl) ethylenediamine dihydrochloride to produce a
chromophore. The combined nitrite concentration is then measured
spectrophotometrically at ~540 nm. The method entails the use of a
discrete analyzer that incorporates a spectrophotometric detector.
The currently approved methods for the analysis of nitrate and
nitrite in drinking water are listed in 40 CFR 141.23(k)(1). The
approved EPA Method 353.2 (USEPA 1993a) uses cadmium to reduce nitrate
to nitrite and subsequently measures the combined nitrite
colorimetrically. The NECi nitrate reductase method provides an
environmentally friendly approach to nitrate-nitrogen analysis by
eliminating the use of toxic cadmium and requires only a fraction of
the sample volume used in the approved EPA method.
A multi-laboratory validation study was conducted to compare the
performance of the NECi nitrate reductase method to the approved EPA
Method 353.2. Multiple finished drinking water samples drawn from both
ground water and surface water sources were used in the validation
study. Precision, accuracy and sensitivity data were collected by
analyzing drinking water samples fortified with varying concentrations
of nitrate standards. The results are summarized in the validation
study report (NECi 2016b). EPA has determined that the NECi nitrate
reductase method is equally as effective as the approved EPA Method
353.2. The basis for this determination is discussed in Adams and
Wendelken (2016). Therefore, EPA is approving the NECi nitrate
reductase method for the analysis of nitrate and nitrite in drinking
water. The NECi nitrate reductase method can be obtained from the
Nitrate Elimination Company, Inc. (NECi) at Superior Enzymes, Inc., 334
Hecla St., Lake Linden, Michigan 49945.
8. Thermo Fisher Scientific Drinking Water Orthophosphate Method
for Thermo Scientific Gallery Discrete Analyzer (Thermo Fisher 2016a).
The Thermo Fisher orthophosphate drinking water method employing Thermo
Scientific Gallery discrete analyzers is used for the colorimetric
determination of orthophosphate in drinking water. In this method,
orthophosphate is reacted with ammonium molybdate and antimony
potassium tartrate in an acidic medium to form an antimony-phospho-
molybdate complex. The complex is subsequently reduced by ascorbic acid
to form an intensely blue complex that can be measured
spectrophotometrically at 880 nm.
The currently approved methods for the analysis of orthophosphate
in drinking water are listed in 40 CFR 141.23(k)(1). Standard Methods
4500-P E (APHA, 1995) is an approved method that uses ascorbic acid to
reduce reacted orthophosphate into a complex that can be measured
spectrophotometrically. The Thermo Fisher orthophosphate method
incorporates an automated discrete analyzer, which minimizes the use of
chemical reagents, generation of waste and human handling errors.
A validation study was conducted to compare the performance of the
automated Thermo Fisher orthophosphate discrete analyzer method to the
approved Standard Method 4500-P E. Multiple finished drinking water
samples drawn from both ground water and surface water sources were
used in the validation study. Precision, accuracy and sensitivity data
were collected by analyzing drinking water samples fortified with
varying concentrations of orthophosphate standards. The results are
summarized in the validation study report (Thermo Fisher 2016b). EPA
has determined that the Thermo Fisher discrete analyzer method for
orthophosphate is equally as effective as the approved Standard Method
4500-P E. Therefore, EPA is approving the Thermo Fisher method for the
analysis of orthophosphate in treated drinking water. The basis for
this determination is discussed in Adams (2016). The Thermo Fisher
discrete analyzer method for orthophosphate can be obtained from Thermo
Fisher Scientific, Ratastie 2, 01620 Vantaa, Finland.
9. Mitchell Method M5331, Revision 1.2--Determination of Turbidity
by LED or Laser Nephelometry (Mitchell 2016). Mitchell Method M5331,
Revision 1.1 (Mitchell 2009) was approved for the determination of
turbidity in drinking water by light emitting diode (LED) nephelometry
in the August 2009 expedited methods approval action (USEPA 2009). The
currently approved methods for turbidity are listed in 40 CFR
141.74(a)(1) and different sources, including lasers, have been
approved. The Mitchell Method M5331 has been updated to incorporate the
option of using a solid-state laser in place of a LED as the light
source for the turbidimeter. The vendor cites multiple advantages
associated with the use of lasers relative to LEDs (Mitchell 2015).
Mitchell Method M5331, Revision 1.1 specifies a light source of 525
15 nm, and now lasers at 520 nm and 532 nm are readily
available. In addition to
[[Page 46843]]
meeting the specified wavelength range, solid-state lasers can offer
longer source lifetimes, greater stability, and improved stray light
rejection. The updated method is the same as the approved Mitchell
Method M5331, Revision 1.1 relative to the divergence of the light
source measurement area, the detector, and all other instrumental
features. EPA has determined that the updated method is equally as
effective as the promulgated EPA Method 180.1 (USEPA 1993b), which
established the criteria for nephelometric determination of turbidity.
The basis for this determination is discussed in Wendelken and Smith
(2016). Therefore, EPA is approving Mitchell Method M5331, Revision 1.2
for the determination of turbidity in drinking water. Mitchell Method
M5331, Revision 1.2 can be obtained from Leck Mitchell, Ph.D., PE, 656
Independence Valley Drive, Grand Junction, Colorado 81507.
IV. Statutory and Executive Order Reviews
As noted in Section II, 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. 2016. Memo to the record describing basis for expedited
approval of Thermo Fisher discrete analyzer method for
orthophosphate. February 18, 2016.
Adams and Smith. 2016. Memo to the record describing basis for
expedited approval of Hach Company methods. February 29, 2016.
Adams and Wendelken. 2016. Memo to the record describing basis for
expedited approval of Nitrate Elimination Company Inc. (NECi)
nitrate reductase method. February 9, 2016.
American Public Health Association (APHA). 1995. 19th Edition of
Standard Methods for the Examination of Water and Wastewater,
American Public Health Association, 800 I Street NW., Washington, DC
20001-3710.
American Public Health Association (APHA). 2000a. Standard Method
4500-Cl G-00, Chlorine (Residual)--DPD Colorimetric Method. Approved
by Standard Methods Committee 2000. Standard Methods Online
(Available at http://www.standardmethods.org).
American Public Health Association (APHA). 2000b. Standard Method
5310 C-00, Total Organic Carbon (TOC)--Persulfate-Ultraviolet or
Heated Persulfate Oxidation Method. Approved by Standard Methods
Committee 2000. Standard Methods Online (Available at http://www.standardmethods.org).
ASTM International. 1995. ASTM D 1125-95 A. Standard Test Methods
for Electrical Conductivity and Resistivity of Water. ASTM
International, 100 Barr Harbor Drive, West Conshohocken, PA 19428-
2959. (Available at http://www.astm.org.)
ASTM International. 2002a. ASTM D 1688-02 A, C. Standard Test
Methods for Copper in Water. ASTM International, 100 Barr Harbor
Drive, West Conshohocken, PA 19428-2959. (Available at http://www.astm.org.)
ASTM International. 2002b. ASTM D 3697-02. Standard Test Method for
Antimony in Water. ASTM International, 100 Barr Harbor Drive, West
Conshohocken, PA 19428-2959. (Available at http://www.astm.org.)
ASTM International. 2003a. ASTM D 1253-03. Standard Test Method for
Residual Chlorine in Water. ASTM International, 100 Barr Harbor
Drive, West Conshohocken, PA 19428-2959. (Available at http://www.astm.org.)
ASTM International. 2003b. ASTM D 511-03 A, B. Standard Test Methods
for Calcium and Magnesium in Water. ASTM International, 100 Barr
Harbor Drive, West Conshohocken, PA 19428-2959. (Available at http://www.astm.org.)
ASTM International. 2012a. ASTM D 1688-12 A, C. Standard Test
Methods for Copper in Water. ASTM International, 100 Barr Harbor
Drive, West Conshohocken, PA 19428-2959. (Available at http://www.astm.org.)
ASTM International. 2012b. ASTM D 3697-12. Standard Test Method for
Antimony in Water. ASTM International, 100 Barr Harbor Drive, West
Conshohocken, PA 19428-2959. (Available at http://www.astm.org.)
ASTM International. 2014a. ASTM D 1253-14. Standard Test Method for
Residual Chlorine in Water. ASTM International, 100 Barr Harbor
Drive, West Conshohocken, PA 19428-2959. (Available at http://www.astm.org.)
ASTM International. 2014b. ASTM D 1125-14 A. Standard Test Methods
for Electrical Conductivity and Resistivity of Water. ASTM
International, 100 Barr Harbor Drive, West Conshohocken, PA 19428-
2959. (Available at http://www.astm.org.)
ASTM International. 2014c. ASTM D 511-14 A, B. Standard Test Methods
for Calcium and Magnesium in Water. ASTM International, 100 Barr
Harbor Drive, West Conshohocken, PA 19428-2959. (Available at http://www.astm.org.)
Hach Company. 2000. Hach FilterTrak Method 10133--Determination of
Turbidity by Laser Nephelometry. January 2000. Revision 2.0. 5600
Lindbergh Drive, Loveland, Colorado 80539. (Available at http://www.hach.com.)
Hach Company. 2014. Validation Study Report for Hach Method 10258--
Measurement of Turbidity in Drinking Water by 360 Degree
Nephelometry. December 2014. 5600 Lindbergh Drive, Loveland,
Colorado 80539. (Available at http://www.regulations.gov; docket ID
No. EPA-HQ-OW-2016-0281.)
Hach Company. 2015a. Hach Method 10241--Spectrophotometric
Measurement of Free Chlorine (Cl2) in Finished Drinking
Water. November 2015. Revision 1.2. 5600 Lindbergh Drive, Loveland,
Colorado 80539. (Available at http://www.hach.com.)
Hach Company. 2015b. Validation Study Report for Hach Method 10241--
Spectrophotometric Measurement of Free Chlorine in Drinking Water.
November 2015. 5600 Lindbergh Drive, Loveland, Colorado 80539.
(Available at http://www.regulations.gov; docket ID No. EPA-HQ-OW-
2016-0281.)
Hach Company. 2015c. Hach Method 8026--Spectrophotometric
Measurement of Copper in Finished Drinking Water. December 2015.
Revision 1.2. 5600 Lindbergh Drive, Loveland, Colorado 80539.
(Available at http://www.hach.com.)
Hach Company. 2015d. Validation Study Report for Hach Method 8026--
Spectrophotometric Measurement of Copper in Drinking Water. November
2015. 5600 Lindbergh Drive, Loveland, Colorado 80539. (Available at
http://www.regulations.gov; docket ID No. EPA-HQ-OW-2016-0281.)
Hach Company. 2015e. Hach Method 10261--Total Organic Carbon in
Finished Drinking Water by Catalyzed Ozone Hydroxyl Radical
Oxidation Infrared Analysis. December 2015. Revision 1.2. 5600
Lindbergh Drive, Loveland, Colorado 80539. (Available at http://www.hach.com.)
Hach Company. 2015f. Validation Study Report for Hach Method 10261--
Total Organic Carbon in Finished Drinking Water by Catalyzed Ozone
Hydroxyl Radical Oxidation Infrared Analysis. December 2015. 5600
Lindbergh Drive, Loveland, Colorado 80539. (Available at http://www.regulations.gov; docket ID No. EPA-HQ-OW-2016-0281.)
Hach Company. 2015g. Hach Method 10267--Spectrophotometric
Measurement of Total Organic Carbon (TOC) in Finished Drinking
Water. December 2015. Revision 1.2. 5600 Lindbergh Drive, Loveland,
Colorado 80539. (Available at http://www.hach.com.)
Hach Company. 2015h. Validation Study Report for Hach Method 10267--
Spectrophotometric Measurement of Total Organic Carbon (TOC) in
Finished Drinking Water. December 2015. 5600 Lindbergh Drive,
Loveland, Colorado
[[Page 46844]]
80539. (Available at http://www.regulations.gov; docket ID No. EPA-
HQ-OW-2016-0281.)
Hach Company. 2015i. Hach Method 10272--Spectrophotometric
Measurement of Copper in Finished Drinking Water. December 2015.
Revision 1.2. 5600 Lindbergh Drive, Loveland, Colorado 80539.
(Available at http://www.hach.com.)
Hach Company. 2015j. Validation Study Report for Hach Method 10272--
Spectrophotometric Measurement of Copper in Finished Drinking Water.
December 2015. 5600 Lindbergh Drive, Loveland, Colorado 80539.
(Available at http://www.regulations.gov; docket ID No. EPA-HQ-OW-
2016-0281.)
Hach Company. 2016. Hach Method 10258--Determination of Turbidity by
360[deg] Nephelometry. January 2016. 5600 Lindbergh Drive, Loveland,
Colorado 80539. (Available at http://www.hach.com.)
Mitchell, L. and Mitchell, P. 2009. Mitchell Method M5331--
Determination of Turbidity by LED Nephelometry. March 2009. Revision
1.1. Leck Mitchell, Ph.D., PE, 656 Independence Valley Drive, Grand
Junction, CO 81507. (Available at http://www.regulations.gov; docket
ID No. EPA-HQ-OW-2016-0281.)
Mitchell, L. 2015. Mitchell ATP Submission with Justification for
Revision to Mitchell Method M5331, Revision 1.1. September 2015.
Leck Mitchell, Ph.D., PE, 656 Independence Valley Drive, Grand
Junction, CO 81507. (Available at http://www.regulations.gov; docket
ID No. EPA-HQ-OW-2016-0281.)
Mitchell, L. and Mitchell, P. 2016. Mitchell Method M5331--
Determination of Turbidity by LED or Laser Nephelometry. February
2016. Revision 1.2. Leck Mitchell, Ph.D., PE, 656 Independence
Valley Drive, Grand Junction, CO 81507. (Available at http://www.regulations.gov; docket ID No. EPA-HQ-OW-2016-0281.)
Nitrate Elimination Company, Inc. (NECi). 2016a. Method for Nitrate
Reductase Nitrate-Nitrogen Analysis of Drinking Water. February
2016. Version 1.0. Revision 2.0. Superior Enzymes, Inc., 334 Hecla
Street, Lake Linden, Michigan 49945. (Available at http://www.regulations.gov; docket ID No. EPA-HQ-OW-2016-0281.)
Nitrate Elimination Company, Inc. (NECi). 2016b. Validation Study
Report for NECi Nitrate-Reductase Nitrate plus Nitrite Nitrogen
Method. January 2016. Superior Enzymes, Inc., 334 Hecla Street, Lake
Linden, Michigan 49945. (Available at http://www.regulations.gov;
docket ID No. EPA-HQ-OW-2016-0281.)
Smith, G. 2015. Memo to the record describing basis for expedited
approval of updated methods from ASTM International. December 30,
2015.
Thermo Fisher. 2016a. Thermo Fisher Scientific Drinking Water
Orthophosphate Method for Thermo Scientific Gallery Discrete
Analyzer. February 2016. Revision 5. Thermo Fisher Scientific,
Ratastie 2, 01620 Vantaa, Finland. (Available at http://www.regulations.gov; docket ID No. EPA-HQ-OW-2016-0281.)
Thermo Fisher. 2016b. Validation Study Report for Thermo Fisher
Orthophosphate Discrete Analyzer Method. February 2016. Thermo
Fisher Scientific, Ratastie 2, 01620 Vantaa, Finland. (Available at
http://www.regulations.gov; docket ID No. EPA-HQ-OW-2016-0281.)
USEPA. 1993a. EPA Method 353.2. Revision 2.0, ``Determination of
Nitrate-Nitrite Nitrogen by Automated Colorimetry,'' August 1993.
(Available at https://www.nemi.gov.)
USEPA. 1993b. EPA Method 180.1. Revision 2.0, ``Determination of
Turbidity by Nephelometry,'' August 1993. (Available at https://www.nemi.gov.)
USEPA. 1994. EPA Method 200.7. Revision 4.4, ``Determination of
Metals and Trace Elements in Water and Wastes by Inductively Coupled
Plasma-Atomic Emission Spectrometry,'' May 1994. (Available at
https://www.nemi.gov.)
USEPA. 2009. Expedited Approval of Alternative Test Procedures for
the Analysis of Contaminants Under the Safe Drinking Water Act;
Analysis and Sampling Procedures, 74 FR 38348, August 3, 2009.
Wendelken and Smith. 2016. Memo to record describing basis for
expedited approval of Mitchell Method M5331, Revision 1.2. February
24, 2016.
List of Subjects in 40 CFR Part 141
Environmental protection, Chemicals, Indians-lands,
Intergovernmental relations, Reporting and recordkeeping requirements,
Water supply.
Dated: July 7, 2016.
Peter Grevatt,
Director, Office of Ground Water and Drinking Water.
For the reasons stated in the preamble, 40 CFR part 141 is amended
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. Appendix A to subpart c of part 141 is amended as follows:
0
a. By revising entries for ``Antimony,'' ``Calcium,'' ``Copper,''
``Conductivity,'' ``Magnesium,'' ``Nitrate,'' ``Nitrite,'' and
``Orthophosphate,'' in the table entitled ``ALTERNATIVE TESTING METHODS
FOR CONTAMINANTS LISTED AT 40 CFR 141.23(k)(1).''
0
b. By revising the entry for ``Turbidity'' in the table entitled
``ALTERNATIVE TESTING METHODS FOR CONTAMINANTS LISTED AT 40 CFR
141.74(a)(1).''
0
c. By revising entries for ``Free Chlorine'' and ``Total Chlorine'' in
the table entitled ``ALTERNATIVE TESTING METHODS FOR DISINFECTANT
RESIDUALS LISTED AT 40 CFR 141.74(a)(2).''
0
d. By revising the entries for ``Free Chlorine'', ``Combined
Chlorine,'' and ``Total Chlorine'' in the table entitled ``ALTERNATIVE
TESTING METHODS FOR DISINFECTANT RESIDUALS LISTED AT 40 CFR
141.131(c)(1).''
0
e. By revising the entire table entitled ``ALTERNATIVE TESTING METHODS
FOR PARAMETERS LISTED AT 40 CFR 141.131(d).''
0
f. By revising footnotes 2, 9, 14, 16, 18, 19, 24-27, 29, and 33.
0
g. By adding footnotes 34-42 to the table.
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 141.23(k)(1)
--------------------------------------------------------------------------------------------------------------------------------------------------------
SM 21st Edition SM 22nd Edition
Contaminant Methodology EPA method \1\ \28\ SM Online \3\ ASTM \4\ Other
--------------------------------------------------------------------------------------------------------------------------------------------------------
* * * * * * *
Antimony................... Hydride-Atomic ................ ................ ................ ................ D 3697-07, -12.. ...............
Absorption.
Atomic ................ 3113 B.......... 3113 B.......... 3113 B-04, B-10. ................ ...............
Absorption;
Furnace.
[[Page 46845]]
Axially viewed 200.5, Revision ................ ................ ................ ................ ...............
inductively 4.2.\2\.
coupled plasma-
atomic emission
spectrometry
(AVICP-AES).
* * * * * * *
Calcium.................... EDTA Titrimetric ................ 3500-Ca B....... 3500-Ca B....... ................ D 511-09, -14 A. ...............
Atomic ................ 3111 B.......... 3111 B.......... ................ D 511-90, -14 B. ...............
Absorption;
Direct
Aspiration.
Inductively ................ 3120 B.......... 3120 B.......... ................ ................ ...............
Coupled Plasma.
Axially viewed 200.5, Revision ................ ................ ................ ................ ...............
inductively 4.2.\2\.
coupled plasma-
atomic emission
spectrometry
(AVICP-AES).
Ion ................ ................ ................ ................ D 6919-09....... ...............
Chromatography.
* * * * * * *
Copper..................... Atomic ................ 3113 B.......... 3113 B.......... 3113 B-04, B-10. D 1688-07, -12 C ...............
Absorption;
Furnace.
Atomic ................ 3111 B.......... 3111 B.......... ................ D 1688-07, -12 A ...............
Absorption;
Direct
Aspiration.
Inductively ................ 3120 B.......... 3120 B.......... ................ ................ ...............
Coupled Plasma.
Axially viewed 200.5, Revision ................ ................ ................ ................ ...............
inductively 4.2.\2\.
coupled plasma-
atomic emission
spectrometry
(AVICP-AES).
Colorimetric.... ................ ................ ................ ................ ................ Hach Method
8026 \35\ Hach
Method
10272.\36\
Conductivity............... Conductance..... ................ 2510 B.......... 2510 B.......... ................ D 1125-14 A..... ...............
* * * * * * *
Magnesium.................. Atomic ................ 3111 B.......... 3111 B.......... ................ D 511-09, -14 B. ...............
Absorption.
Inductively ................ 3120 B.......... 3120 B.......... ................ ................ ...............
Coupled Plasma.
Complexation ................ 3500-Mg B....... 3500-Mg B....... ................ D 511-09, -14 A. ...............
Titrimetric
Methods.
Axially viewed 200.5, Revision ................ ................ ................ ................ ...............
inductively 4.2.\2\.
coupled plasma-
atomic emission
spectrometry
(AVICP-AES).
Ion ................ ................ ................ ................ D 6919-09....... ...............
Chromatography.
* * * * * * *
Nitrate.................... Ion ................ 4110 B.......... 4110 B.......... ................ D 4327-11....... ...............
Chromatography.
Automated ................ 4500-NO3\-\ F... 4500-NO3\-\ F... ................ ................ ...............
Cadmium
Reduction.
Manual Cadmium ................ 4500-NO3\-\ E... 4500-NO3\-\ E... ................ ................ ...............
Reduction.
Ion Selective ................ 4500-NO3\-\ D... 4500-NO3\-\ D... ................ ................ ...............
Electrode.
Reduction/ ................ ................ ................ ................ ................ Systea Easy (1-
Colorimetric. Reagent) \8\
NECi Nitrate-
Reductase.\40\
Colorimetric; ................ ................ ................ ................ ................ Hach TNTplus TM
Direct. 835/836 Method
10206.\23\
Nitrite.................... Ion ................ 4110 B.......... 4110 B.......... ................ D 4327-11....... ...............
Chromatography.
Automated ................ 4500-NO3\-\ F... 4500-NO3\-\ F... ................ ................ ...............
Cadmium
Reduction.
Manual Cadmium ................ 4500-NO3\-\ E... 4500-NO3\-\ E... ................ ................ ...............
Reduction.
Spectrophotometr ................ 4500-NO2\-\ B... 4500-NO2\-\ B... ................ ................ ...............
ic.
Reduction/ ................ ................ ................ ................ ................ Systea Easy (1-
Colorimetric. Reagent) \8\
NECi Nitrate-
Reductase.\40\
Orthophosphate............. Ion ................ 4110 B.......... 4110 B.......... ................ D 4327-11....... ...............
Chromatography.
Colorimetric, ................ 4500-P E........ 4500-P E........ 4500-P E-99..... ................ ...............
ascorbic acid,
single reagent.
Colorimetric, ................ 4500-P F........ 4500-P F........ 4500-P F-99..... ................ Thermo-Fisher
Automated, Discrete
Ascorbic Acid. Analyzer.\41\
* * * * * * *
--------------------------------------------------------------------------------------------------------------------------------------------------------
* * * * *
[[Page 46846]]
Alternative Testing Methods for Contaminants Listed at 40 CFR 141.74(a)(1)
--------------------------------------------------------------------------------------------------------------------------------------------------------
Organism Methodology SM 21st Edition \1\ SM 22nd Edition \28\ SM Online \3\ Other
--------------------------------------------------------------------------------------------------------------------------------------------------------
* * * * * * *
Turbidity.................... Nephelometric 2130 B.................... 2130 B....................
Method.
Laser Nephelometry .......................... .......................... .......................... Mitchell
(on-line). M5271,\10\
Mitchell M5331,
Rev. 1.2.\42\
LED Nephelometry .......................... .......................... .......................... Mitchell
(on-line). M5331,\11\
Mitchell M5331,
Rev. 1.2.\42\
LED Nephelometry .......................... .......................... .......................... AMI
(on-line). Turbiwell.\15\
LED Nephelometry .......................... .......................... .......................... Orion AQ4500.\12\
(portable).
360[deg] .......................... .......................... .......................... Hach Method
Nephelometry. 10258.\39\
--------------------------------------------------------------------------------------------------------------------------------------------------------
Alternative Testing Methods for Disinfectant Residuals Listed at 40 CFR 141.74(a)(2)
--------------------------------------------------------------------------------------------------------------------------------------------------------
Residual Methodology SM 21st Edition \1\ SM 22nd Edition \28\ ASTM \4\ Other
--------------------------------------------------------------------------------------------------------------------------------------------------------
Free Chlorine................ Amperometric 4500-Cl D................. 4500-Cl D................. D 1253-08, -14............ .................
Titration.
DPD Ferrous 4500-Cl F................. 4500-Cl F................. .......................... .................
Titrimetric.
DPD Colorimetric.. 4500-Cl G................. 4500-Cl G................. .......................... Hach Method
10260.\31\
Syringaldazine 4500-Cl H................. 4500-Cl H................. .......................... .................
(FACTS).
On-line Chlorine .......................... .......................... .......................... EPA 334.0.\16\
Analyzer.
Amperometric .......................... .......................... .......................... ChloroSense.\17\
Sensor.
Indophenol .......................... .......................... .......................... Hach Method
Colorimetric. 10241.\34\
Total Chlorine............... Amperometric 4500-Cl D................. 4500-Cl D................. D 1253-08, -14............ .................
Titration.
Amperometric 4500-Cl E................. 4500-Cl E................. .......................... .................
Titration (Low
level
measurement).
DPD Ferrous 4500-Cl F................. 4500-Cl F................. .......................... .................
Titrimetric.
DPD Colorimetric.. 4500-Cl G................. 4500-Cl G................. .......................... Hach Method
10260.\31\
Iodometric 4500-Cl I................. 4500-Cl I................. .......................... .................
Electrode.
On-line Chlorine .......................... .......................... .......................... EPA 334.0.\16\
Analyzer.
Amperometric .......................... .......................... .......................... ChloroSense.\17\
Sensor.
* * * * * * *
--------------------------------------------------------------------------------------------------------------------------------------------------------
* * * * *
Alternative Testing Methods for Disinfectant Residuals Listed at 40 CFR 141.131(c)(1)
--------------------------------------------------------------------------------------------------------------------------------------------------------
Residual Methodology SM 21st Edition \1\ SM 22nd Edition \28\ ASTM \4\ Other
--------------------------------------------------------------------------------------------------------------------------------------------------------
Free Chlorine................ Amperometric 4500-Cl D................. 4500-Cl D................. D 1253-08, -14............ .................
Titration.
DPD Ferrous 4500-Cl F................. 4500-Cl F................. .......................... .................
Titrimetric.
DPD Colorimetric.. 4500-Cl G................. 4500-Cl G................. .......................... Hach Method
10260.\31\
Syringaldazine 4500-Cl H................. 4500-Cl H................. .......................... .................
(FACTS).
Amperometric .......................... .......................... .......................... ChloroSense.\17\
Sensor.
On-line Chlorine .......................... .......................... .......................... EPA 334.0.\16\
Analyzer.
Indophenol .......................... .......................... .......................... Hach Method
Colorimetric. 10241.\34\
Combined Chlorine............ Amperometric 4500-Cl D................. 4500-Cl D................. D 1253-08, -14............ .................
Titration.
DPD Ferrous 4500-Cl F................. 4500-Cl F................. .......................... .................
Titrimetric.
DPD Colorimetric.. 4500-Cl G................. 4500-Cl G................. .......................... Hach Method
10260.\31\
Total Chlorine............... Amperometric 4500-Cl D................. 4500-Cl D................. D 1253-08, -14............ .................
Titration.
Low level 4500-Cl E................. 4500-Cl E................. .......................... .................
Amperometric
Titration.
DPD Ferrous 4500-Cl F................. 4500-Cl F................. .......................... .................
Titrimetric.
DPD Colorimetric.. 4500-Cl G................. 4500-Cl G................. .......................... Hach Method
10260.\31\
Iodometric 4500-Cl I................. 4500-Cl I................. .......................... .................
Electrode.
Amperometric .......................... .......................... .......................... ChloroSense.\17\
Sensor.
On-line Chlorine .......................... .......................... .......................... EPA 334.0.\16\
Analyzer.
* * * * * * *
--------------------------------------------------------------------------------------------------------------------------------------------------------
* * * * *
[[Page 46847]]
Alternative Testing Methods for Parameters Listed at 40 CFR 141.131(d)
--------------------------------------------------------------------------------------------------------------------------------------------------------
SM 21st Edition SM 22nd Edition
Parameter Methodology \1\ \28\ SM Online \3\ EPA Other
--------------------------------------------------------------------------------------------------------------------------------------------------------
Total Organic Carbon (TOC).... High Temperature 5310 B......... 5310 B......... ............... 415.3, Rev 1.2.\19\.. ...........................
Combustion.
Persulfate- 5310 C......... 5310 C......... ............... 415.3, Rev 1.2 \19\.. Hach Method 10267.\38\
Ultraviolet or
Heated
Persulfate
Oxidation.
Wet Oxidation.... 5310 D......... 5310 D......... ............... 415.3, Rev 1.2.\19\.. ...........................
Ozone Oxidation.. ............... ............... ............... ..................... Hach Method 10261.\37\
Specific Ultraviolet Calculation using ............... ............... ............... 415.3, Rev 1.2.\19\.. ...........................
Absorbance (SUVA). DOC and UV254
data.
Dissolved Organic Carbon (DOC) High Temperature 5310 B......... 5310 B......... ............... 415.3, Rev 1.2.\19\.. ...........................
Combustion.
Persulfate- 5310 C......... 5310 C......... ............... 415.3, Rev 1.2.\19\.. ...........................
Ultraviolet or
Heated
Persulfate
Oxidation.
Wet Oxidation.... 5310 D......... 5310 D......... ............... 415.3, Rev 1.2.\19\.. ...........................
Ultraviolet absorption at 254 Spectrophotometry 5910 B......... 5910 B......... 5910 B-11...... 415.3, Rev 1.2.\19\.. ...........................
nm (UV254).
--------------------------------------------------------------------------------------------------------------------------------------------------------
* * * * *
\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.
\2\ EPA Method 200.5, Revision 4.2. ``Determination of Trace
Elements in Drinking Water by Axially Viewed Inductively Coupled
Plasma-Atomic Emission Spectrometry.'' 2003. EPA/600/R-06/115.
(Available at http://www.epa.gov/water-research/epa-drinking-water-research-methods.)
\3\ Standard Methods Online are available at http://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 http://astm.org. The methods
listed are the only alternative versions that may be used.
* * * * *
\8\ Systea Easy (1-Reagent). ``Systea Easy (1-Reagent) Nitrate
Method,'' February 4, 2009. Available at https://www.nemi.gov or
from Systea Scientific, LLC., 900 Jorie Blvd., Suite 35, Oak Brook,
IL 60523.
\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 the
National Service Center for Environmental Publications (www.epa.gov/nscep). Search ``815B09009''.
\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.
\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, http://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 the National Service
Center for Environmental Publications (www.epa.gov/nscep). Search
``815B09012''.
\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.
\16\ EPA Method 334.0. ``Determination of Residual Chlorine in
Drinking Water Using an On-line Chlorine Analyzer,'' September 2009.
EPA 815-B-09-013. Available at the National Service Center for
Environmental Publications (www.epa.gov/nscep). Search
``815B09013''.
\17\ ChloroSense. ``Measurement of Free and Total Chlorine in
Drinking Water by Palintest ChloroSense,'' August 2009. Available at
https://www.nemi.gov or from Palintest Ltd, 1455 Jamike Avenue
(Suite 100), Erlanger, KY 41018.
\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 the National Service Center for Environmental
Publications (www.epa.gov/nscep). Search ``815B09014''.
\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
http://www.epa.gov/water-research/epa-drinking-water-research-methods.
* * * * *
\23\ Hach Company. ``Hach Company TNTplus TM 835/836
Nitrate Method 10206--Spectrophotometric Measurement of Nitrate in
Water and Wastewater,'' January 2011. 5600 Lindbergh Drive, P.O. Box
389, Loveland, Colorado 80539. (Available at http://www.hach.com.)
\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 http://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 (www.epa.gov/nscep). Search
``815B07002''.
\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
(www.epa.gov/nscep). Search ``815R11002''.
\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 (www.epa.gov/nscep). Search ``816R12001''.
\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
(www.epa.gov/nscep). Search ``815R13002''.
* * * * *
\31\ Hach Company. ``Hach Method 10260--Determination of
Chlorinated Oxidants (Free and Total) in Water Using Disposable
Planar Reagent-filled Cuvettes and Mesofluidic Channel
Colorimetry,'' April 2013. 5600 Lindbergh Drive, P.O. Box 389,
Loveland, CO 80539. (Available at http://www.hach.com.)
\33\ Tecta EC/TC. ``Techta\TM\ EC/TC Medium and Techta\TM\
Instrument: A Presence/Absence Method for the Simultaneous Detection
of Total Coliforms and Escherichia coli (E. coli) in Drinking
Water,'' version 1.0, May 2014. Available from Veolia Water
Solutions and Technologies, Suite 4697,
[[Page 46848]]
Biosciences Complex, 116 Barrie Street, Kingston, Ontario, Canada,
K7L 3N6.
\34\ Hach Company. ``Hach Method 10241--Spectrophotometric
Measurement of Free Chlorine (Cl2) in Finished Drinking
Water,'' November 2015. Revision 1.2. 5600 Lindbergh Drive, P.O. Box
389, Loveland, CO 80539. (Available at http://www.hach.com.)
\35\ Hach Company. ``Hach Method 8026--Spectrophotometric
Measurement of Copper in Finished Drinking Water,'' December 2015.
Revision 1.2. 5600 Lindbergh Drive, P.O. Box 389, Loveland, CO
80539. (Available at http://www.hach.com.)
\36\ Hach Company. ``Hach Method 10272--Spectrophotometric
Measurement of Copper in Finished Drinking Water,'' December 2015.
Revision 1.2. 5600 Lindbergh Drive, P.O. Box 389, Loveland, CO
80539. (Available at http://www.hach.com.)
\37\ Hach Company. ``Hach Method 10261--Total Organic Carbon in
Finished Drinking Water by Catalyzed Ozone Hydroxyl Radical
Oxidation Infrared Analysis,'' December 2015. Revision 1.2. 5600
Lindbergh Drive, P.O. Box 389, Loveland, CO 80539. (Available at
http://www.hach.com.)
\38\ Hach Company. ``Hach Method 10267--Spectrophotometric
Measurement of Total Organic Carbon (TOC) in Finished Drinking
Water,'' December 2015. Revision 1.2. 5600 Lindbergh Drive, P.O. Box
389, Loveland, CO 80539. (Available at http://www.hach.com.)
\39\ Hach Company. ``Hach Method 10258--Determination of
Turbidity by 360[deg] Nephelometry,'' January 2016. 5600 Lindbergh
Drive, P.O. Box 389, Loveland, CO 80539. (Available at http://www.hach.com.)
\40\ Nitrate Elimination Company, Inc. (NECi). ``Method for
Nitrate Reductase Nitrate-Nitrogen Analysis of Drinking Water,''
February 2016. Superior Enzymes, Inc., 334 Hecla Street, Lake
Linden, Michigan 49945.
\41\ Thermo Fisher. ``Thermo Fisher Scientific Drinking Water
Orthophosphate Method for Thermo Scientific Gallery Discrete
Analyzer,'' February 2016. Revision 5. Thermo Fisher Scientific,
Ratastie 2, 01620 Vantaa, Finland.
\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.
[FR Doc. 2016-16516 Filed 7-18-16; 8:45 am]
BILLING CODE 6560-50-P