[Federal Register Volume 75, Number 109 (Tuesday, June 8, 2010)]
[Rules and Regulations]
[Pages 32295-32302]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2010-13685]
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ENVIRONMENTAL PROTECTION AGENCY
40 CFR Part 141
[EPA-HQ-OW-2010-0288; FRL-9160-1]
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 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 (SDWA) authorizes EPA to approve the use of alternative
testing methods through publication in the Federal Register. EPA is
using this streamlined authority to make 12 additional methods
available for analyzing drinking water samples required by regulation.
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 June 8, 2010.
[[Page 32296]]
FOR FURTHER INFORMATION CONTACT: Safe Drinking Water Hotline (800) 426-
4791 or Glynda Smith, Technical Support Center, 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; e-mail address: smith.glynda@epa.gov.
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 SDWA may also 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.
Categories and entities that may ultimately be affected by this action
include:
------------------------------------------------------------------------
Examples of potentially NAICS
Category regulated entities \1\
------------------------------------------------------------------------
State, Local, & Tribal Governments. States, local and tribal 924110
governments that analyze
water samples on behalf
of public water systems
required to conduct such
analysis; States, local
and tribal governments
that themselves 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 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.
B. How can I get copies of this document and other related information?
Docket. EPA established a docket for this action under Docket ID
No. EPA-HQ-OW-2010-0288. Publicly available docket materials are
available either electronically through http://www.regulations.gov or
in hard copy at the Water Docket in the EPA Docket Center, (EPA/DC) EPA
West, Room 3334, 1301 Constitution Ave., NW., Washington, DC.
Copyrighted materials are available only in hard copy. The EPA Docket
Center Public Reading Room is open from 8:30 a.m. to 4:30 p.m., Monday
through Friday, excluding legal holidays. The telephone number for the
Public Reading Room is (202) 566-1744, and the telephone number for the
Water Docket is (202) 566-2426.
Abbreviations and Acronyms Used in This Action
APHA: American Public Health Association
CFR: Code of Federal Regulations
E. coli: Escherichia coli
EPA: Environmental Protection Agency
GWR: Ground Water Rule
IC-ESI-MS/MS: Ion Chromatography Electrospray Ionization Tandem Mass
Spectrometry
NAICS: North American Industry Classification System
NEMI: National Environmental Methods Index
QC: Quality Control
SDWA: Safe Drinking Water Act
TCR: Total Coliform Rule
VCSB: Voluntary Consensus Standard Bodies
II. Background
A. What is the purpose of this action?
In this action, EPA is approving 12 analytical methods for
determining contaminant concentrations in 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. The new
methods are listed in appendix A to subpart C of part 141 and on EPA's
drinking water methods Web site at http://www.epa.gov/safewater/methods/analyticalmethods_expedited.html.
This action also includes the full text of three tables in Appendix
A to Subpart C of Part 141. The tables do not include any new method
approvals. EPA inadvertently deleted two table columns in the November
10, 2009, Federal Register notice (74 FR 57908) (USEPA 2009b). The
corrected tables are titled:
Alternative Testing Methods for Disinfectant Residuals
Listed at 40 CFR 141.74(a)(2),
Alternative Testing Methods for Contaminants Listed at 40
CFR 141.131(b)(1), and
Alternative Testing Methods for Disinfectant Residuals
Listed at 40 CFR 141.131(c)(1).
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 12 additional methods available for
determining contaminant concentrations in 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 equally effective as one or more of the testing methods
already established in the regulations for those contaminants. Section
1401(1) states that the newly approved methods ``shall be treated as an
alternative for public water systems
[[Page 32297]]
to the quality control and testing procedures listed in the
regulation.'' Accordingly, this action makes these additional (and
optional) 12 analytical methods legally available 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 this
Federal Register.
EPA described this expedited methods approval process in an April
10, 2007, Federal Register notice (72 FR 17902) (USEPA 2007) and
announced its intent to begin using the process. EPA published the
first set of approvals in a June 3, 2008, Federal Register notice (73
FR 31616) (USEPA 2008) and added appendix A to 40 CFR part 141, subpart
C. Additional methods were added to appendix A to subpart C in an
August 3, 2009, Federal Register notice (74 FR 38348) (USEPA 2009a) and
a November 10, 2009, Federal Register notice (74 FR 57908) (USEPA
2009b). Future approvals using this process are anticipated.
III. Summary of Approvals
EPA is approving 12 methods that are equally effective relative to
methods previously promulgated in the regulations. By means of this
notice, these 12 methods are added to appendix A to subpart C of part
141.
A. Methods Developed by EPA
EPA Method 557 is a direct-injection, ion chromatography, negative-
ion electrospray ionization, tandem mass spectrometry (IC-ESI-MS/MS)
method for the determination of nine haloacetic acids, dalapon, and
bromate in finished drinking waters (USEPA 2009c). Each method analyte
is qualitatively identified via a unique mass transition, and the
concentration is calculated using the integrated peak area and the
internal standard technique.
EPA Method 557 eliminates the labor intensive sample preparation
steps (extraction and derivatization) that are required in other
methods. It also reduces the use of solvents and potentially hazardous
chemicals. The development work for this method is described in the
method research summary (Zaffiro and Zimmerman 2009). EPA Method 557
has already been approved for determining haloacetic acids and bromate
in drinking water (74 FR 57908) (USEPA 2009b); its approval is being
expanded in this action to include dalapon.
The approved methods for dalapon are listed at 40 CFR 141.24(e)(1).
The performance characteristics of EPA Method 557 for dalapon were
compared to the characteristics of approved EPA Methods 552.2 (USEPA
1995), 552.3 (USEPA 2003), and 515.4 (USEPA 2000). EPA has determined
that EPA Method 557 is equally effective for measuring dalapon as each
one of these three previously approved methods. The basis for this
determination is discussed in Smith (2010a). Therefore, EPA is
approving EPA Method 557 for determining dalapon in drinking water and
adding it to the list of approved methods in appendix A to subpart C of
part 141 as an alternative method for contaminants listed at 40 CFR
141.24(e)(1). A copy of EPA Method 557 can be accessed and downloaded
directly on-line at http://epa.gov/safewater/methods/analyticalmethods_ogwdw.html.
B. Methods Developed by Voluntary Consensus Standard Bodies (VCSB)
1. Standard Methods for the Examination of Water and Wastewater. In
Standard Method 6640 B, chlorinated acids in drinking water are
derivatized and analyzed using gas chromatography with electron capture
detection. The method uses the identical sample handling protocols,
analytical conditions, and quality control (QC) criteria as EPA Method
515.4 (USEPA 2000), which is approved for analyzing compliance samples
for dalapon (40 CFR 141.24(e)(1)). EPA has determined that Standard
Method 6640 B, published in the 21st edition of Standard Methods for
the Examination of Water and Wastewater (APHA 2005), is equally
effective relative to EPA Method 515.4 (Smith 2010b) for the analysis
of compliance samples for dalapon. EPA has also determined that
Standard Method 6640 B-01 (APHA 2001) is an identical on-line version
of Standard Method 6640 B. Accordingly, EPA is approving Standard
Method 6640 B and Standard Method 6640 B-01 for determining dalapon in
drinking water and adding them to the list of approved methods in
Appendix A to Subpart C of Part 141 as alternative methods for
contaminants listed at 40 CFR 141.24(e)(1). The 21st edition can be
obtained from the American Public Health Association (APHA), 800 I
Street, NW., Washington, DC 20001-3710. Standard Method 6640 B-01 is
available at http://www.standardmethods.org.
2. ASTM International. EPA compared the most recent versions of six
ASTM International methods for radiochemicals in water to the versions
of those methods that are already approved under 40 CFR 141.25(a).
Changes between the approved version and the most recent version of
each method are summarized in Umbaugh (2010). The revisions primarily
involve editorial changes (i.e., updated references, definitions,
terminology, and reorganization of text). The revised methods are the
same as the approved versions with respect to drinking water sample
collection and handling protocols, sample preparation, analytical
methodology, and results. The QC requirements in the revised methods
have been expanded and are more detailed than in the previous versions.
EPA has determined that the new versions are equally effective relative
to those cited in the regulation (ASTM Methods D3454-97, D2460-97,
D5174-02, D3649-98a, D4785-00a, and D4107-98 (reapproved 2002))
(Umbaugh 2010). Therefore, EPA is approving the use of the six updated
ASTM methods for radiochemicals listed in the following table:
------------------------------------------------------------------------
ASTM Method Contaminant
------------------------------------------------------------------------
D3454-05 (ASTM International 2009a). Radium-226.
D2460-07 (ASTM International 2009b). Radium-226.
D5174-07 (ASTM International 2009c). Uranium.
D3649-06 (ASTM International 2009d). Radioactive Cesium.
Radioactive Iodine.
Gamma emitters.
D4785-08 (ASTM International 2009e). Radioactive Iodine.
Gamma emitters.
D4107-08 (ASTM International 2009f). Tritium.
------------------------------------------------------------------------
[[Page 32298]]
As of today's notice, measurements of radiochemicals in drinking water
may be performed using either one of these six methods or one of the
methods already approved at 40 CFR 141.25(a). The six ASTM methods are
available from ASTM International, 100 Barr Harbor Drive, West
Conshohocken, PA 19428-2959 or http://www.astm.org.
C. Methods Developed by Vendors
EPA previously approved by regulation the following alternative
methods, which are listed at 40 CFR 141.21(f)(6), for determining
Escherichia coli (E. coli) under the Total Coliform Rule (TCR):
Readycult[supreg] (EMD Chemicals 2007), Chromocult[supreg] (EM Science
2000), and Modified Colitag\TM\ (CPI International 2009). These three
methods were not approved under the Ground Water Rule (GWR) (71 FR
65574, November 8, 2006) (USEPA 2006), because they were not evaluated
by EPA prior to proposal of the GWR. However, these methods were
evaluated under the Alternate Test Procedure (ATP) program and EPA
determined that the methods were equally effective for E. coli
determination relative to Standard Method 9221F (Best 2010), published
in the 20th edition of Standard Methods for the Examination of Water
and Wastewater (APHA 1998). Standard Method 9221F is approved for E.
coli determination under the GWR (40 CFR 141.402(c)(2)). EPA is using
today's notice to approve the use of Readycult[supreg],
Chromocult[supreg], and Modified Colitag\TM\ to meet E. coli monitoring
requirements under GWR and is adding them to the list of approved
methods in appendix A to subpart C of part 141 as alternative methods
for contaminants listed at 40 CFR 141.402(c)(2).
The 20th edition of Standard Methods for the Examination of Water
and Wastewater (1998) is available from the American Public Health
Association (APHA), 800 I Street, NW., Washington, DC 20001-3710.
The Readycult[supreg] test is described in the document
``Readycult[supreg] Coliforms 100 Presence/Absence Test for Detection
and Identification of Coliform Bacteria and Escherichia coli in
Finished Waters, January 2007, Version 1.1,'' available from EMD
Chemicals (an affiliate of Merck KGaA, Darmstadt Germany), 480 S.
Democrat Road, Gibbstown, NJ 08027-1297. (Telephone (800) 222-0342).
Internet address http://www.readycult.com.
The Chromocult[supreg] test is described in the document
``Chromocult[supreg] Coliform Agar Presence/Absence Membrane Filter
Test Method for Detection and Identification of Coliform Bacteria and
Escherichia coli in Finished Waters,'' November 2000, Version 1.0,
available from EMD Chemicals (formerly EM Science) (an affiliate of
Merck KGaA, Darmstadt Germany), 480 S. Democrat Road, Gibbstown, NJ
08027-1297. (Telephone (800) 222-0342).
The Modified Colitag[supreg] test is described in the document
``Modified Colitag\TM\ Test Method for the Simultaneous Detection of E.
coli and other Total Coliforms in Water,'' August 28, 2009, available
from CPI International, Inc., 5580 Skylane Blvd., Santa Rosa, CA,
95403. (Telephone (800) 878-7654, Fax (707) 545-7901). Internet address
http://www.cpiinternational.com.
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
(optional) testing methods available 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
American Public Health Association (APHA). 1998. 20th 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). 2001. Standard Method
6640 B-01. Acidic Herbicide Compounds. Micro Liquid-Liquid
Extraction Gas Chromatographic Method. Approved by Standard Methods
Committee 2001. Standard Methods Online. (Available at http://www.standardmethods.org.)
American Public Health Association (APHA). 2005. 21st Edition of
Standard Methods for the Examination of Water and Wastewater,
American Public Health Association, 800 I Street, NW., Washington,
DC 20001-3710.
ASTM International. 2009a. ASTM D 3454-05. Standard Test Method for
Radium-226 in Water. ASTM International, 100 Barr Harbor Drive, West
Conshohocken, PA 19428-2959. (Available at http://www.astm.org.)
ASTM International. 2009b. ASTM D 2460-07. Standard Test Method for
Alpha-Particle-Emitting Isotopes of Radium in Water. ASTM
International, 100 Barr Harbor Drive, West Conshohocken, PA 19428-
2959. (Available at http://www.astm.org.)
ASTM International. 2009c. ASTM D 5174-07. Standard Test Method for
Trace Uranium in Water by Pulsed-Laser Phosphorimetry. ASTM
International, 100 Barr Harbor Drive, West Conshohocken, PA 19428-
2959. (Available at http://www.astm.org.)
ASTM International. 2009d. ASTM D 3649-06. Standard Practice for
High-Resolution Gamma-Ray Spectrometry in Water. ASTM International,
100 Barr Harbor Drive, West Conshohocken, PA 19428-2959. (Available
at http://www.astm.org.)
ASTM International. 2009e. ASTM D 4785-08. 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 http://www.astm.org.)
ASTM International. 2009f. ASTM D 4107-08. Standard Test Method for
Tritium in Drinking Water. ASTM International, 100 Barr Harbor
Drive, West Conshohocken, PA 19428-2959. (Available at http://www.astm.org.)
Best, J. 2010. Memo to the record describing basis for expedited
approval of Modified Colitag\TM\, Readycult[supreg], and
Chromocult[supreg] methods for determining E. coli as specified at
40 CFR 141.402(c)(2). January 27, 2010.
CPI International. 2009. Modified Colitag\TM\ Method. Modified
Colitag\TM\ Test Method for the Simultaneous Detection of E. coli
and other Total Coliforms in Water (ATP D05-0035). August 28, 2009.
5580 Skylane Boulevard, Santa Rosa, CA 95403.
EMD Chemicals (affiliate of Merck KGaA, Darmstadt, Germany). 2000.
Chromocult[supreg] Method. Chromocult[supreg] Coliform Agar
Presence/Absence Membrane Filter Test Method for Detection and
Identification of Coliform Bacteria and Escherichia coli in Finished
Waters. November, 2000. Version 1.0. 480 S. Democrat Road,
Gibbstown, NJ 08027-1297.
EMD Chemicals (affiliate of Merck KGaA, Darmstadt, Germany). 2007.
Readycult[supreg] Method. Readycult[supreg] Coliforms 100 Presence/
Absence Test for Detection and Identification of Coliform Bacteria
and Escherichia coli in Finished Waters. January, 2007. Version 1.1.
480 S. Democrat Road, Gibbstown, NJ 08027-1297.
Smith, G. 2010a. Memo to the record describing basis for expedited
approval of EPA Method 557 for the analysis of dalapon. January 19,
2010.
Smith, G. 2010b. Memo to the record describing basis for expedited
approval of Standard Method 6640 B and 6640 B-01 for the analysis of
dalapon. January 27, 2010.
Umbaugh, L. 2010. Memo to the record describing basis for expedited
approval of ASTM methods for radiochemicals in water. January 21,
2010.
[[Page 32299]]
USEPA. 1995. EPA Method 552.2, Determination of Haloacetic Acids and
Dalapon in Drinking Water by Liquid-Liquid Extraction,
Derivatization and Gas Chromatography with Electron Capture
Detection in Methods for the Determination of Organic Compounds in
Drinking Water, Supplement III, EPA/600/R-95-131, August 1995.
(Available at http://www.nemi.gov.)
USEPA. 2000. EPA Method 515.4, Determination of Chlorinated Acids in
Drinking Water by Liquid-Liquid Extraction, Derivatization, and Fast
Gas Chromatography with Electron Capture Detection, EPA 815-B-00-
001, April 2000. (Available at http://www.epa.gov/safewater/methods/analyticalmethods_ogwdw.html.)
USEPA. 2003. EPA Method 552.3, Determination of Haloacetic Acids and
Dalapon in Drinking Water by Liquid-Liquid Microextraction,
Derivatization, and Gas Chromatography with Electron Capture
Detection, EPA 815-B-03-002, July 2003. (Available at http://www.epa.gov/safewater/methods/analyticalmethods_ogwdw.html.)
USEPA. 2006. National Primary Drinking Water Regulations: Ground
Water Rule; Final Rule. 71 FR 65574. November 8, 2006.
USEPA. 2007. Expedited Approval of Test Procedures for the Analysis
of Contaminants Under the Safe Drinking Water Act; Analysis and
Sampling Procedures. 72 FR 17902. April 10, 2007.
USEPA. 2008. Expedited Approval of Alternative Test Procedures for
the Analysis of Contaminants Under the Safe Drinking Water Act;
Analysis and Sampling Procedures. 73 FR 31616. June 3, 2008.
USEPA. 2009a. 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.
USEPA. 2009b. Expedited Approval of Alternative Test Procedures for
the Analysis of Contaminants Under the Safe Drinking Water Act;
Analysis and Sampling Procedures. 74 FR 57908. November 10, 2009.
USEPA. 2009c. 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), EPA
815-B-09-012, September 2009. (Available at http://www.epa.gov/safewater/methods/analyticalmethods_ogwdw.html.)
Zaffiro, A.D. and Zimmerman, M. 2009. EPA Method 557 Research
Summary, Shaw Environmental Inc., Cincinnati OH. March 2009.
List of Subjects in 40 CFR Part 141
Chemicals, Environmental protection, Indians-lands,
Intergovernmental relations, Radiation protection, Reporting and
recordkeeping requirements, Water supply.
Dated: June 2, 2010.
Cynthia C. Dougherty,
Director, Officer of Ground Water and Drinking Water.
0
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, 300j-4, and 300j-9.
0
2. Appendix A to subpart C of part 141 is amended as follows:
0
a. By adding the entry for ``Dalapon'' after the entry for
``Carbofuran'' in the table entitled ``Alternative testing methods for
contaminants listed at 40 CFR 141.24 (e)(1).''
0
b. By revising the entries for ``Radium 226,'' ``Uranium,''
``Radioactive Cesium,'' ``Radioactive Iodine,'' ``Tritium,'' and
``Gamma Emitters'' in the table entitled ``Alternative testing methods
for contaminants listed at 40 CFR 141.25(a).''
0
c. By revising all entries in the table entitled ``Alternative Testing
Methods for Disinfectant Residuals Listed at 40 CFR 141.74(a)(2).''
0
d. By revising all entries in the table entitled ``Alternative Testing
Methods for Contaminants Listed at 40 CFR 141.131(b)(1).''
0
e. By revising all entries in the table entitled ``Alternative Testing
Methods for Disinfectant Residuals Listed at 40 CFR 141.131(c)(1).''
0
f. By revising all entries in the table entitled ``Alternative Testing
Methods for Contaminants Listed at 40 CFR 141.402(c)(2)'' and,
0
g. By adding footnotes 20 and 21 to the table.
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 21st edition
Contaminant Methodology EPA method \1\ SM online \3\
----------------------------------------------------------------------------------------------------------------
* * * * * * *
Dalapon........................... Ion Chromatography \14\ 557 6640 B 6640 B-01.
Electrospray Ionization
Tandem Mass Spectrometry
(IC-ESI-MS/MS).
* * * * * * *
----------------------------------------------------------------------------------------------------------------
Alternative Testing Methods for Contaminants Listed at 40 CFR 141.25(a)
----------------------------------------------------------------------------------------------------------------
Contaminant Methodology SM 21st edition \ 1\ ASTM \ 4\
----------------------------------------------------------------------------------------------------------------
Naturally Occurring:
* * * * * * *
Radium 226.................... Radon emanation..... 7500-Ra C................. D3454-05.
Radiochemical....... 7500-Ra B................. D2460-07.
* * * * * * *
Uranium....................... Radiochemical....... 7500-U B.................. ..........................
ICP-MS.............. .......................... D5673-05.
Alpha spectrometry.. 7500-U C.................. ..........................
Laser Phosphorimetry .......................... D5174-07.
Man-Made:
[[Page 32300]]
Radioactive Cesium............ Radiochemical....... 7500-Cs B................. ..........................
Gamma Ray 7120...................... D3649-06.
Spectrometry.
Radioactive Iodine............ Radiochemical....... 7500-I B.................. D3649-06.
.................... 7500-I C..................
.................... 7500-I D..................
Gamma Ray 7120...................... D4785-08.
Spectrometry.
* * * * * * *
Tritium....................... Liquid Scintillation 7500-3H B................. D4107-08.
Gamma Emitters................ Gamma Ray 7120...................... D3649-06.
Spectrometry.
7500-Cs B................. D4785-08.
7500-I B..................
----------------------------------------------------------------------------------------------------------------
* * * * * * *
Alternative Testing Methods for Disinfectant Residuals Listed at 40 CFR 141.74(a)(2)
----------------------------------------------------------------------------------------------------------------
SM 21st Edition
Residual Methodology \1\ ASTM \4\ Other
----------------------------------------------------------------------------------------------------------------
Free Chlorine.............. Amperometric 4500-Cl D...... D 1253-08............
Titration.
DPD Ferrous 4500-Cl F......
Titrimetric.
DPD Colorimetric.... 4500-Cl G......
Syringaldazine 4500-Cl H......
(FACTS).
On-line Chlorine ............... ..................... EPA 334.0.\16\
Analyzer.
Amperometric Sensor. ............... ..................... ChloroSense.\17\
Total Chlorine............. Amperometric 4500-Cl D...... D 1253-08............
Titration.
Amperometric 4500-Cl E......
Titration (Low
level measurement).
DPD Ferrous 4500-Cl F......
Titrimetric.
DPD Colorimetric.... 4500-Cl G......
Iodometric Electrode 4500-Cl I......
On-line Chlorine ............... ..................... EPA 334.0.\16\
Analyzer.
Amperometric Sensor. ............... ..................... ChloroSense.\17\
Chlorine Dioxide........... Amperometric 4500-ClO2 C....
Titration.
Amperometric 4500-ClO2 E....
Titration.
Ozone...................... Indigo Method....... 4500-O3 B......
----------------------------------------------------------------------------------------------------------------
Alternative Testing Methods for Contaminants Listed at 40 CFR 141.131(b)(1)
----------------------------------------------------------------------------------------------------------------
Contaminant Methodology EPA Method ASTM \4\ SM 21st Edition \1\
----------------------------------------------------------------------------------------------------------------
TTHM........................ P&T/GC/MS........... \9\ 524.3
HAA5........................ LLE (diazomethane)/ .............. ..................... 6251 B.
GC/ECD.
Ion Chromatography \14\ 557
Electrospray
Ionization Tandem
Mass Spectrometry
(IC-ESI-MS/MS).
Bromate..................... Two-Dimensional Ion \18\ 302.0
Chromatography (IC).
Ion Chromatography \14\ 557
Electrospray
Ionization Tandem
Mass Spectrometry
(IC-ESI-MS/MS).
Chemically .............. D 6581-08 A. .....................
Suppressed Ion
Chromatography.
Electrolytically .............. D 6581-08 B. .....................
Suppressed Ion
Chromatography.
Chlorite.................... Chemically .............. D 6581-08 A.
Suppressed Ion
Chromatography.
Electrolytically .............. D 6581-08 B.
Suppressed Ion
Chromatography.
Chlorite--daily monitoring Amperometric .............. ..................... 4500-ClO2 E.
as prescribed in 40 CFR Titration.
141.132(b)(2)(i)(A)..
----------------------------------------------------------------------------------------------------------------
Alternative Testing Methods for Disinfectant Residuals Listed at 40 CFR 141.131(c)(1)
----------------------------------------------------------------------------------------------------------------
SM 21st Edition
Residual Methodology \1\ ASTM \4\ Other
----------------------------------------------------------------------------------------------------------------
Free Chlorine.............. Amperometric 4500-Cl D...... D 1253-08 .....................
Titration.
DPD Ferrous 4500-Cl F......
Titrimetric.
[[Page 32301]]
DPD Colorimetric.... 4500-Cl G......
Syringaldazine 4500-Cl H......
(FACTS).
Amperometric Sensor. ............... ..................... ChloroSense.\17\
On-line Chlorine ............... ..................... EPA 334.0.\16\
Analyzer.
Combined Chlorine.......... Amperometric 4500-Cl D...... D 1253-08............
Titration.
DPD Ferrous 4500-Cl F......
Titrimetric.
DPD Colorimetric.... 4500-Cl G......
Total Chlorine............. Amperometric 4500-Cl D...... D 1253-08............
Titration.
Low level 4500-Cl E......
Amperometric
Titration.
DPD Ferrous 4500-Cl F......
Titrimetric.
DPD Colorimetric.... 4500-Cl G......
Iodometric Electrode 4500-Cl I......
Amperometric Sensor. ............... ..................... ChloroSense.\17\
On-line Chlorine ............... ..................... EPA 334.0.\16\
Analyzer.
Chlorine Dioxide........... Amperometric Method 4500-ClO2 E.
II.
----------------------------------------------------------------------------------------------------------------
* * * * *
Alternative Testing Methods for Contaminants Listed at 40 CFR 141.402(c)(2)
--------------------------------------------------------------------------------------------------------------------------------------------------------
Organism Methodology SM 20th edition \6\ SM 21st edition \1\ SM online \3\ Other
--------------------------------------------------------------------------------------------------------------------------------------------------------
E. coli............................ Colilert.............. ...................... 9223 B............... 9223 B-97............
Colisure.............. ...................... 9223 B............... 9223 B-97............
Colilert-18........... 9223 B................ 9223 B............... 9223 B-97............
Readycult[supreg]..... ...................... ..................... ..................... Readycult[supreg].\20
\
Colitag............... ...................... ..................... ..................... Modified
ColitagTM.\13\
Chromocult[supreg].... ...................... ..................... ..................... Chromocult[supreg].\2
1\
Enterococci........................ Multiple-Tube ...................... ..................... 9230 B-04............
Technique.
--------------------------------------------------------------------------------------------------------------------------------------------------------
* * * * *
\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 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.
* * * * *
\6\ Standard Methods for the Examination of Water and Wastewater, 20th edition (1998). Available from American Public Health Association, 800 I Street,
NW., Washington, DC 20001-3710.
* * * * *
\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 http://epa.gov/safewater/methods/analyticalmethods_ogwdw.html.
* * * * *
\13\ Modified Colitag\TM\; Method, ``Modified ColitagTM Test Method for the Simultaneous Detection of E. coli and other Total Coliforms in Water (ATP
D05-0035),'' August 28, 2009. Available at http://www.nemi.gov or from CPI International, 5580 Skylane Boulevard, Santa Rosa, CA 95403.
\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 http://epa.gov/safewater/methods/analyticalmethods_ogwdw.html.
* * * * *
\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 http://epa.gov/safewater/methods/analyticalmethods_ogwdw.html.
\17\ ChloroSense. ``Measurement of Free and Total Chlorine in Drinking Water by Palintest ChloroSense,'' August 2009. Available at http://www.nemi.gov
or from Palintest Ltd, 21 Kenton Lands Road, PO Box 18395, 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 http://epa.gov/safewater/methods/analyticalmethods_ogwdw.html.
* * * * *
\20\ Readycult[supreg] Method, ``Readycult[supreg] Coliforms 100 Presence/Absence Test for Detection and Identification of Coliform Bacteria and
Escherichia coli in Finished Waters,'' January, 2007. Version 1.1. Available from EMD Chemicals (affiliate of Merck KGaA, Darmstadt, Germany), 480 S.
Democrat Road, Gibbstown, NJ 08027-1297.
\21\ Chromocult[supreg] Method, ``Chromocult[supreg] Coliform Agar Presence/Absence Membrane Filter Test Method for Detection and Identification of
Coliform Bacteria and Escherichia coli in Finished Waters,'' November, 2000. Version 1.0. EMD Chemicals (affiliate of Merck KGaA, Darmstadt, Germany),
480 S. Democrat Road, Gibbstown, NJ 08027-1297.
[[Page 32302]]
[FR Doc. 2010-13685 Filed 6-7-10; 8:45 am]
BILLING CODE 6560-50-P