```

[Federal Register Volume 78, Number 105 (Friday, May 31, 2013)]
[Rules and Regulations]
[Pages 32558-32574]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2013-12729]

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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 141

[EPA-HQ-OW-2013-0300; FRL-9818-2]

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

[[Page 32559]]

(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 84 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 May 31, 2013.

FOR FURTHER INFORMATION CONTACT: 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: 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 or in 
prior expedited approval actions. Categories and entities that may 
ultimately be affected by this action include:

----------------------------------------------------------------------------------------------------------------
                    Category                          Examples of potentially regulated entities      NAICS \1\
----------------------------------------------------------------------------------------------------------------
State, Local, & Tribal Governments..............  States, local and Tribal governments that analyze       924110
                                                   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 community and non-transient        221310
                                                   non-community water systems required to monitor.
Municipalities..................................  Municipal operators of community and non-               924110
                                                   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-2013-0300. Publicly available docket materials are 
available either electronically through 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
EPA: United States Environmental Protection Agency
GC: Gas Chromatography
GC/MS: Gas Chromatography/Mass Spectrometry
GWR: Ground Water Rule
NAICS: North American Industry Classification System
NEMI: National Environmental Methods Index
QC: Quality Control
SDWA: Safe Drinking Water Act
TTHM: Total trihalomethanes
VCSB: Voluntary Consensus Standard Bodies

II. Background

A. What is the purpose of this action?

    In this action, EPA is approving 84 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 or in prior 
expedited approval actions. The new methods are listed along with other 
previously expedited methods in 40 CFR Part 141 Appendix A to Subpart C 
and on EPA's drinking water methods Web site at http://water.epa.gov/scitech/drinkingwater/labcert/analyticalmethods_expedited.cfm.

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 84 additional methods available for 
determining contaminant concentrations in samples collected under the 
SDWA. EPA has determined that, for each contaminant or group of 
contaminants listed in Section III, the additional testing methods 
being

[[Page 32560]]

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 84 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 84 methods that are equally effective relative to 
methods previously promulgated in the regulations. By means of this 
notice, these 84 methods are added to Appendix A to Subpart C of 40 CFR 
Part 141.

A. Methods Developed by EPA

    1. EPA Method 524.4 (USEPA 2013) is a gas chromatography/mass 
spectrometry (GC/MS) method for the determination of 21 purgeable 
organic compounds, which are regulated in drinking water as specified 
at 40 CFR 141.61(a)(1) through (21), and total trihalomethanes (TTHM), 
which are regulated in drinking water as specified at 40 CFR 
141.64(b)(1) and (2). The method analytes are purged from the water 
sample using nitrogen and trapped on a sorbent material. After purging, 
the sorbent trap is heated and back flushed with GC carrier gas and the 
analytes are transferred to a capillary GC column. The analytes eluting 
from the GC column are directed into a mass spectrometer for detection 
and quantitation. The analytes are identified by comparing the acquired 
mass spectra and retention times for calibration standards acquired 
under identical GC/MS conditions. The concentration of each analyte is 
calculated using the internal standard technique and response curves 
are generated using procedural calibration standards. EPA Method 524.4 
is an extension of EPA Method 524.3 (USEPA 2009a) which was approved in 
an earlier expedited methods approval action (74 FR 38348, August 3, 
2009) (USEPA 2009b). Both EPA Methods 524.4 and 524.3 are updated 
versions of EPA Method 524.2, Revision 4.1 (USEPA 1995), which is 
currently approved at 40 CFR 141.24(e)(1) for the analysis of benzene; 
carbon tetrachloride; chlorobenzene; 1,2-dichlorobenzene; 1,4-
dichlorobenzene; 1,2-dichloroethane; cis-dichloroethylene; trans-
dichloroethylene; dichloromethane; 1,2-dichloropropane; ethylbenzene; 
styrene; tetrachloroethylene; 1,1,1-trichloroethane; trichloroethylene; 
toluene; 1,2,4-trichlorobenzene; 1,1-dichloroethylene; 1,1,2-
trichloroethane; vinyl chloride; total xylenes (sum of o-xylene, m-
xylene, and p-xylene) and total trihalomethanes (TTHM; sum of 
chloroform, bromodichloromethane, dibromochloromethane, and bromoform). 
EPA Method 524.2, Revision 4.1 is also approved at 40 CFR 141.131(b)(1) 
for TTHM. The primary difference between EPA Method 524.4 and EPA 
Method 524.3 lies in the purge gas. The cost of helium continues to 
rise and EPA Method 524.4 was developed using less expensive nitrogen 
gas to purge the analytes from drinking water samples instead of 
helium.
    For each of the purgeable organic compounds and TTHM contaminants, 
the method performance characteristics of EPA Method 524.4 were 
compared to those of the approved method, EPA Method 524.2, Revision 
4.1. EPA has determined EPA Method 524.4 is equally as effective as the 
approved method for determining the concentrations of each of the 
regulated purgeable organic compounds and TTHM contaminants in drinking 
water. The basis for this determination is discussed in detail in Smith 
and Wendelken (2012a). Therefore, EPA is approving the use of EPA 
Method 524.4 for each of the above named contaminants when analyzing 
drinking water compliance samples.
    A copy of EPA Method 524.4 can be accessed and downloaded directly 
on-line at http://water.epa.gov/scitech/drinkingwater/labcert/analyticalmethods.cfm.

B. Methods Developed by Voluntary Consensus Standard Bodies (VCSB)

    1. Standard Methods for the Examination of Water and Wastewater 
(Standard Methods). The 22nd edition of Standard Methods for the 
Examination of Water and Wastewater (APHA 2012) was published earlier 
this year. EPA compared 79 methods in the 22nd edition to earlier 
versions of those methods that are currently approved in 40 CFR Part 
141. Changes between the approved version and the version of each 
method published in the 22nd edition are summarized in Smith and 
Wendelken (2012b) and Best (2013). The revisions primarily involve 
editorial changes (e.g., corrections of errors, procedural 
clarifications, and reorganization of text); in addition, most of the 
chemistry methods in the 22nd edition contain an editorial change that 
directs analysts to the appropriate Quality Control (QC) section that 
contains the QC criteria and practices that are to be followed as part 
of the method. The methods in the 22nd edition listed in the following 
table are the same as the earlier approved versions with respect to the 
chemistry, sample handling protocols, and method performance data. For 
all of these reasons, EPA has concluded that the versions in the 22nd 
edition are thus equally effective relative to those that are currently 
approved in the regulations. Therefore, EPA is approving the use of 79 
updated Standard Methods in the 22nd edition for the contaminants and 
their respective regulations listed in the following table:

----------------------------------------------------------------------------------------------------------------
  Standard method, 22nd edition
           (APHA 2012)                  Approved method              Contaminant               Regulation
----------------------------------------------------------------------------------------------------------------
2120 B...........................  2120 B-01, online version  Color...................  40 CFR 143.4(b)
                                    (APHA 2001a).
2130 B...........................  2130 B-01, online version  Turbidity...............  40 CFR 141.74(a)(1)
                                    (APHA 2001b).
2150 B...........................  2150 B-97, online version  Odor....................  40 CFR 143.4(b)
                                    (APHA 1997a).
2320 B...........................  2320 B-97, online version  Alkalinity..............  40 CFR 141.23(k)(1)
                                    (APHA 1997b).
2510 B...........................  2510 B-97, online version  Conductivity............  40 CFR 141.23(k)(1)
                                    (APHA 1997c).

[[Page 32561]]

 
2540 C...........................  2540 C-97, online version  Total Dissolved Solids..  40 CFR 143.4(b)
                                    (APHA 1997d).
2550.............................  2550-00, online version    Temperature.............  40 CFR 141.23(k)(1)
                                    (APHA 2000a).
3111 B...........................  3111 B-99, online version  Calcium, copper,          40 CFR 141.23(k)(1); 40
                                    (APHA 1999a).              magnesium, nickel,        CFR 143.4(b)
                                                               sodium, iron,
                                                               manganese, silver, zinc.
3111 D...........................  3111 D-99, online version  Barium, aluminum........  40 CFR 141.23(k)(1); 40
                                    (APHA 1999a).                                        CFR 143.4(b)
3112 B...........................  3112 B-99, online version  Mercury.................  40 CFR 141.23(k)(1)
                                    (APHA 1999b).
3113 B...........................  3113 B, 19th Edition       Antimony, arsenic,        40 CFR 141.23(k)(1); 40
                                    (APHA 1995).               barium, beryllium,        CFR 143.4(b)
                                                               cadmium, chromium,
                                                               copper, lead, nickel,
                                                               selenium, aluminum,
                                                               iron, manganese, silver.
3114 B...........................  3114 B-97, online version  Arsenic, selenium.......  40 CFR 141.23(k)(1)
                                    (APHA 1997e).
3120 B...........................  3120 B-99, online version  Barium, beryllium,        40 CFR 141.23(k)(1); 40
                                    (APHA 1999c).              calcium, chromium,        CFR 143.4(b)
                                                               copper, magnesium,
                                                               nickel, silica,
                                                               aluminum, iron,
                                                               manganese, silver, zinc.
3500-Ca B........................  3500-Ca B-97, online       Calcium.................  40 CFR 141.23(k)(1)
                                    version (APHA 1997f).
3500-Mg B........................  3500-Mg B-97, online       Magnesium...............  40 CFR 141.23(k)(1)
                                    version (APHA 1997g).
4110 B...........................  4110 B-00, online version  Fluoride, nitrate,        40 CFR 141.23(k)(1); 40
                                    (APHA 2000b).              nitrite, ortho-           CFR 143.4(b)
                                                               phosphate, chloride,
                                                               sulfate.
4500-Cl D,F,G,H,.................  4500-Cl D,F,G,H-00,        Free chlorine...........  40 CFR 141.74(a)(2); 40
                                    online versions (APHA                                CFR 141.131(c)(1)
                                    2000c).
4500-Cl D,E,F,G,I................  4500-Cl D,E,F,G,I-00,      Total chlorine..........  40 CFR 141.74(a)(2); 40
                                    online versions (APHA                                CFR 141.131(c)(1)
                                    2000c).
4500-Cl D,F,G,...................  4500-Cl D,F,G-00, online   Combined chlorine.......  40 CFR 141.131(c)(1)
                                    versions (APHA 2000c).
4500-Cl- B,D.....................  4500-Cl- B,D-97, online    Chloride................  40 CFR 143.4(b)
                                    versions (APHA 1997h).
4500-ClO2 C......................  4500-ClO2 C-00, online     Chlorine Dioxide........  40 CFR 141.74(a)(2)
                                    version (APHA 2000d).
4500-ClO2 E......................  4500-ClO2 E-00, online     Chlorine Dioxide........  40 CFR 141.74(a)(2); 40
                                    version (APHA 2000d).                                CFR 141.131(c)(1)
4500-ClO2 E......................  4500-ClO2 E-00, online     Chlorite................  40 CFR 141.131(b)(1)
                                    version (APHA 2000d).
4500-CN- E,F,G...................  4500-CN- E,F,G-99, online  Cyanide.................  40 CFR 141.23(k)(1)
                                    versions (APHA 1999d).
4500-F- B,C,D,E..................  4500-F- B,C,D,E-97,        Fluoride................  40 CFR 141.23(k)(1)
                                    online versions (APHA
                                    1997i).
4500-H+ B........................  4500-H+ B-00, online       pH......................  40 CFR 141.23(k)(1)
                                    version (APHA 2000e).
4500-NO3- D......................  4500-NO3 D-00, online      Nitrate.................  40 CFR 141.23(k)(1)
                                    version (APHA 2000f).
4500-NO3- E,F....................  4500-NO3- E,F-00, online   Nitrate, nitrite........  40 CFR 141.23(k)(1)
                                    versions (APHA 2000f).
4500-NO2- B......................  4500-NO2- B-00, online     Nitrite.................  40 CFR 141.23(k)(1)
                                    version (APHA 2000g).
4500-O3 B........................  4500-O3 B-97, online       Ozone...................  40 CFR 141.74(a)(2)
                                    version (APHA 1997j).
4500-P E,F.......................  4500-P E,F, 19th Edition   Ortho-phosphate.........  40 CFR 141.23(k)(1)
                                    (APHA 1995).
4500-SiO2 C,D,E..................  4500-SiO2 C,D,E-97,        Silica..................  40 CFR 141.23(k)(1)
                                    online versions (APHA
                                    1997k).
4500-SO4\2\- C,D,E,F.............  4500-SO4\2\- C,D,E,F,      Sulfate.................  40 CFR 143.4(b)
                                    19th Edition (APHA 1995).
5310 B,C,D.......................  5310 B,C,D-00, online      Dissolved and Total       40 CFR 141.131(d)
                                    versions (APHA 2000h).     Organic Carbon.
5540 C...........................  5540 C-00, online version  Foaming agents..........  40 CFR 143.4(b)
                                    (APHA 2000i).
5910 B...........................  5910 B-00, online version  UV Absorption at 254 nm.  40 CFR 141.131(d)
                                    (APHA 2000j).
6251 B...........................  6251 B-94, online version  HAA5....................  40 CFR 141.131(b)(1)
                                    (APHA 1994).
6610 B...........................  EPA Method 531.2, Rev.     Carbofuran, oxamyl......  40 CFR 141.24(e)(1)
                                    1.0 (2001a).
6640 B...........................  EPA Method 515.4, Rev.     2,4-D; 2,4,5-TP;          40 CFR 141.24(e)(1)
                                    1.0 (2000).                Dalapon; Dinoseb;
                                                               Pentachlorophenol;
                                                               Picloram.
6651 B...........................  6651 B, 20th Edition       Glyphosate..............  40 CFR 141.24(e)(1)
                                    (APHA 1998).

[[Page 32562]]

 
7110 B...........................  7110 B-00, online version  Gross alpha and beta....  40 CFR 141.25(a)
                                    (APHA 2000k).
7110 C...........................  7110 C-00, online version  Gross alpha.............  40 CFR 141.25(a)
                                    (APHA 2000k).
7120.............................  7120-97, online version    Gamma emitters (includes  40 CFR 141.25(a)
                                    (APHA 1997l).              radioactive cesium and
                                                               iodine).
7500-Cs B........................  7500-Cs B-00, online       Radioactive Cesium Gamma  40 CFR 141.25(a)
                                    version (APHA 2000l).      emitters.
7500-\3\H B......................  7500-\3\H B-00, online     Tritium.................  40 CFR 141.25(a)
                                    version (APHA 2000m).
7500-I B.........................  7500-I B-00, online        Radioactive Iodine Gamma  40 CFR 141.25(a)
                                    version (APHA 2000n).      emitters.
7500-I C,D.......................  7500-I C,D-00, online      Radioactive Iodine......  40 CFR 141.25(a)
                                    versions (APHA 2000n).
7500-Ra B,C......................  7500-Ra B,C-01, online     Radium-226..............  40 CFR 141.25(a)
                                    versions (APHA 2001c).
7500-Ra D........................  7500-Ra D-01, online       Radium-228..............  40 CFR 141.25(a)
                                    version (APHA 2001c).
7500-Sr B........................  7500-Sr B-01, online       Strontium-89, Strontium-  40 CFR 141.25(a)
                                    version (APHA 2001d).      90.
7500-U B,C.......................  7500-U B,C-00, online      Uranium.................  40 CFR 141.25(a)
                                    versions (APHA 2000o).
9221 A...........................  9221 A, 20th Edition       Total Coliforms.........  40 CFR 141.21(f)(3); 40
                                    (APHA 1998).                                         CFR 141.74(a)(1)
9221 B...........................  9221 B, 20th Edition       Total Coliforms.........  40 CFR 141.21(f)(3); 40
                                    (APHA 1998).                                         CFR 141.74(a)(1)
9221 B.1, B.2....................  9221 B, 20th Edition       Total Coliforms.........  40 CFR 141.852(a)(5)
                                    (APHA 1998).
9221 C...........................  9221 C, 20th Edition       Total Coliforms.........  40 CFR 141.74(a)(1)
                                    (APHA 1998).
9221 E...........................  9221 E, 20th Edition       Fecal Coliforms.........  40 CFR 141.21(f)(5); 40
                                    (APHA 1998).                                         CFR 141.74(a)(1)
9221 F...........................  9221 F, 20th Edition       E. coli.................  40 CFR 141.402(c)(2)
                                    (APHA 1998).
9221 F.1.........................  9221 F, 20th Edition       E. coli.................  40 CFR 141.852(a)(5)
                                    (APHA 1998).
9222 D...........................  9222 D, 20th Edition       Fecal Coliforms.........  40 CFR 141.74(a)(1)
                                    (APHA 1998).
9223 B...........................  9223, 20th Edition (APHA   Total Coliforms.........  40 CFR 141.21(f)(3); 40
                                    1998).                                               CFR 141.74(a)(1); 40
                                                                                         CFR 141.852(a)(5)
9223 B...........................  9223 B, 20th Edition       E. coli.................  40 CFR 141.21(f)(6); 40
                                    (APHA 1998).                                         CFR 141.402(c)(2); 40
                                                                                         CFR 141.852(a)(5)
9215 B...........................  9215 B, 20th Edition       Heterotrophic Bacteria..  40 CFR 141.74(a)(1)
                                    (APHA 1998).
----------------------------------------------------------------------------------------------------------------

    The 22nd edition can be obtained from the American Public Health 
Association (APHA), 800 I Street, NW., Washington, DC 20001-3710. 
Online versions of Standard Methods are available at http://www.standardmethods.org.
    2. ASTM International. EPA compared the most recent versions of 
three ASTM International methods (ASTM Methods D516-11, D1067-11 B, and 
D1293-12) 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 (2012). The revisions primarily involve editorial changes (e.g., 
updated references, definitions, terminology, 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, and 
thus, EPA finds they are equally effective relative to the approved 
methods.
    EPA is thus approving the use of the following ASTM methods for the 
contaminants and their respective regulations listed in the following 
table:

----------------------------------------------------------------------------------------------------------------
      ASTM Revised version            Approved method          Contaminant                 Regulation
----------------------------------------------------------------------------------------------------------------
D516-11 (ASTM 2011a)............  D516-02 (ASTM 2002a)...  Sulfate...........  40 CFR 143.4(b)
D1067-11 B (ASTM 2011b).........  D1067-02 B (ASTM 2002b)  Alkalinity........  40 CFR 141.23(k)(1)
D1293-12 (ASTM 2012)............  D1293-99 (ASTM 1999)...  pH................  40 CFR 141.23(k)(1)
----------------------------------------------------------------------------------------------------------------

The 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

    1. Charm Sciences, Inc. Fast Phage (2012a) is a microbiological 
method for the detection of male-specific (F+) and somatic coliphages 
in ground water by a two-step enrichment procedure. Coliphages are 
detected as being present or absent in 100 mL samples of ground water 
by the formation of plaques on agar plates containing the host 
bacterium. Fast Phage includes a presumptive rapid fluorescence step 
that can predict coliphage positive samples in less than eight hours.
    EPA Method 1601 (USEPA 2001b) is currently approved under the 
Ground Water Rule (GWR) at 40 CFR 141.402(c)(2) for the detection of 
coliphages in ground water source waters. Fast Phage is similar to EPA 
Method 1601 but has modifications to

[[Page 32563]]

the medium and incubation temperature, which make the method more 
rapid. Fast Phage is able to detect coliphages in 16 to 30 hours 
compared to 40 to 60 hours for EPA Method 1601. Additionally, Fast 
Phage includes kits, which supply the medium, antibiotics and freeze-
dried host bacteria in a pre-packaged and standardized form for easier 
use.
    A multi-laboratory study was conducted to compare the method 
performance of Fast Phage to the performance of the approved method, 
EPA Method 1601. Three geographically diverse wastewaters were used as 
sources of somatic and male-specific coliphages for the study. In four 
different laboratories, Fast Phage was compared side by side with EPA 
Method 1601 for somatic and male-specific coliphage detection in local 
ground waters that were inoculated with low level coliphages from each 
of the test wastewaters. Ten replicates of inoculated ground waters 
were evaluated for both Fast Phage and EPA Method 1601, and each test 
wastewater was evaluated as an inoculant. The study report (Charm 
Sciences Inc. 2012b) details the study design and implementation along 
with the validation data obtained from the multi-laboratory evaluation. 
The results of the multi-laboratory studies indicate that Fast Phage is 
equally as effective as EPA Method 1601 in method performance for 
detecting male-specific and somatic coliphages in ground water. The 
basis for this determination is discussed in Sinclair (2013). EPA is 
thus approving Fast Phage as an alternate method to EPA Method 1601 for 
the detection of male-specific and somatic coliphages in ground water 
under the Ground Water Rule.
    The Fast Phage method is available from Charm Sciences, Inc., 659 
Andover Street, Lawrence, MA 01843, and also at www.charmsciences.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 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

American Public Health Association (APHA). 1994. Standard Method 
6251 B-94. Disinfection By-Products: Haloacetic Acids and 
Trichlorophenol. Micro Liquid-Liquid Extraction Gas Chromatographic 
Method. Approved by Standard Methods Committee 1994. Standard 
Methods Online. (Available at http://www.standardmethods.org.)
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). 1997a. Standard Method 
2150 B-97. Threshold Odor Test. Approved by Standard Methods 
Committee 1997. Standard Methods Online. (Available at http://www.standardmethods.org.)
American Public Health Association (APHA). 1997b. Standard Method 
2320 B-97. Alkalinity. Titration Method. Approved by Standard 
Methods Committee 1997. Standard Methods Online. (Available at 
http://www.standardmethods.org.)
American Public Health Association (APHA). 1997c. Standard Method 
2510 B-97. Conductivity. Laboratory Method. Approved by Standard 
Methods Committee 1997. Standard Methods Online. (Available at 
http://www.standardmethods.org.)
American Public Health Association (APHA). 1997d. Standard Method 
2540 C-97. Total Dissolved Solids Dried at 180[deg]C. Approved by 
Standard Methods Committee 1997. Standard Methods Online. (Available 
at http://www.standardmethods.org.)
American Public Health Association (APHA). 1997e. Standard Method 
3114 B-97. Arsenic and Selenium by Hydride Generation/Atomic 
Absorption Spectrometry. Manual Hydride Generation/Atomic Absorption 
Spectrometric Method. Approved by Standard Methods Committee 1997. 
Standard Methods Online. (Available at http://www.standardmethods.org.)
American Public Health Association (APHA). 1997f. Standard Method 
3500-Ca B-97. Calcium. EDTA Titrimetric Method. Approved by Standard 
Methods Committee 1997. Standard Methods Online. (Available at 
http://www.standardmethods.org.)
American Public Health Association (APHA). 1997g. Standard Method 
3500-Mg B-97. Magnesium. Calculation Method. Approved by Standard 
Methods Committee 1997. Standard Methods Online. (Available at 
http://www.standardmethods.org.)
American Public Health Association (APHA). 1997h. Standard Method 
4500-Cl-B,D-97. Chloride. B. Potentiometric Method. D. 
Potentiometric Method. Approved by Standard Methods Committee 1997. 
Standard Methods Online. (Available at http://www.standardmethods.org.)
American Public Health Association (APHA). 1997i. Standard Method 
4500-F-B,C,D,E-97. Fluoride. B. Preliminary Distillation Step. C. 
Ion-Selective Electrode Method. D. SPADNS Method. E. Complexone 
Method. Approved by Standard Methods Committee 1997. Standard 
Methods Online. (Available at http://www.standardmethods.org.)
American Public Health Association (APHA). 1997j. Standard Method 
4500-O3 B-97. Ozone (Residual). Indigo Colorimetric 
Method. Approved by Standard Methods Committee 1997. Standard 
Methods Online. (Available at http://www.standardmethods.org.)
American Public Health Association (APHA). 1997k. Standard Method 
4500-SiO2 C,D,E-97. Silica. C. Molybdosilicate Method. D. 
Heteropoly Blue Method. E. Automated Method for Molybdate-Reactive 
Silica. Approved by Standard Methods Committee 1997. Standard 
Methods Online. (Available at http://www.standardmethods.org.)
American Public Health Association (APHA). 1997l. Standard Method 
7120 B-97. Gamma Emitting-Radionuclides. Gamma Spectroscopic Method. 
Approved by Standard Methods Committee 1997. Standard Methods 
Online. (Available at http://www.standardmethods.org.)
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). 1999a. Standard Method 
3111 B,D-99. Metals by Flame Atomic Absorption Spectrometry. B. 
Direct Air-Acetylene Flame Method. D. Direct Nitrous Oxide-Acetylene 
Flame Method. Approved by Standard Methods Committee 1999. Standard 
Methods Online. (Available at http://www.standardmethods.org.)
American Public Health Association (APHA). 1999b. Standard Method 
3112 B-99. Metals by Cold-Vapor Atomic Absorption Spectrometry. 
Cold-Vapor Atomic Absorption Spectrometric Method. Approved by 
Standard Methods Committee 1999. Standard Methods Online. (Available 
at http://www.standardmethods.org.)
American Public Health Association (APHA). 1999c. Standard Method 
3120 B-99. Metals by Plasma Emission Spectroscopy. Inductively 
Coupled Plasma (ICP) Method. Approved by Standard Methods Committee 
1999. Standard Methods Online. (Available at http://www.standardmethods.org.)
American Public Health Association (APHA). 1999d. Standard Method 
4500-CN-E,F,G-99. Cyanide. E. Colorimetric Method. F. Cyanide-
Selective Electrode Method. G. Cyanides Amenable to Chlorination 
after Distillation. Approved by Standard Methods Committee 1999.

[[Page 32564]]

Standard Methods Online. (Available at http://www.standardmethods.org.)
American Public Health Association (APHA). 2000a. Standard Method 
2550-00. Temperature. Approved by Standard Methods Committee 2000. 
Standard Methods Online. (Available at http://www.standardmethods.org.)
American Public Health Association (APHA). 2000b. Standard Method 
4110 B-00. Fluoride, Nitrate, Nitrite, ortho-Phosphate, Chloride, 
Sulfate. Determination of Anions by Ion Chromatography. Ion 
Chromatography with Chemical Suppression of Eluent Conductivity. 
Approved by Standard Methods Committee 2000. Standard Methods 
Online. (Available at http://www.standardmethods.org.)
American Public Health Association (APHA). 2000c. Standard Method 
4500-Cl D,E,F,G,H, I-00. Chlorine (Residual). D. Amperometric 
Titration Method. E. Low-Level Amperometric Titration Method. F. DPD 
Ferrous Titrimetric Method. G. DPDColorimetric Method. H. 
Syringaldazine (FACTS) Method. I. Iodometric Electrode Technique. 
Approved by Standard Methods Committee 2000. Standard Methods 
Online. (Available at http://www.standardmethods.org.)
American Public Health Association (APHA). 2000d. Standard Method 
4500-ClO2 C,E-00. Chlorine Dioxide. C. Amperometric 
Method I. E. Amperometric Method II. Approved by Standard Methods 
Committee 2000. Standard Methods Online. (Available at http://www.standardmethods.org.)
American Public Health Association (APHA). 2000e. Standard Method 
4500-H+ B-00. pH Value. Electrometric Method. Approved by Standard 
Methods Committee 2000. Standard Methods Online. (Available at 
http://www.standardmethods.org.)
American Public Health Association (APHA). 2000f. Standard Method 
4500-NO3- D,E,F-00. Nitrogen (Nitrate). D. 
Nitrate Electrode Method. E. Cadmium Reduction Method. F. Automated 
Cadmium Reduction Method. Approved by Standard Methods Committee 
2000. Standard Methods Online. (Available at http://www.standardmethods.org.)
American Public Health Association (APHA). 2000g. Standard Method 
4500-NO2- B-00. Nitrogen (Nitrite). 
Colorimetric Method. Approved by Standard Methods Committee 2000. 
Standard Methods Online. (Available at http://www.standardmethods.org.)
American Public Health Association (APHA). 2000h. Standard Method 
5310 B,C,D-00. Total Organic Carbon (TOC). B. High-Temperature 
Combustion Method. C. Persulfate-Ultraviolet or Heated Persulfate 
Oxidation Method. D. Wet-Oxidation Method. Approved by Standard 
Methods Committee 2000. Standard Methods Online. (Available at 
http://www.standardmethods.org.)
American Public Health Association (APHA). 2000i. Standard Method 
5540 C-00. Surfactants. Anionic Surfactants as MBAs. Approved by 
Standard Methods Committee 2000. Standard Methods Online. (Available 
at http://www.standardmethods.org.)
American Public Health Association (APHA). 2000j. Standard Method 
5910 B-00. UV-Absorbing Organic Constituents. Ultraviolet Absorption 
Method. Approved by Standard Methods Committee 2000. Standard 
Methods Online. (Available at http://www.standardmethods.org.)
American Public Health Association (APHA). 2000k. Standard Method 
7110 B,C-00. Gross Alpha and Gross Beta Radioactivity (Total, 
Suspended, and Dissolved). B. Evaporation Method for Gross Alpha-
Beta. C. Coprecipitation Method for Alpha Radioactivity in Drinking 
Water. Approved by Standard Methods Committee 2000. Standard Methods 
Online. (Available at http://www.standardmethods.org.)
American Public Health Association (APHA). 2000l. Standard Method 
7500-Cs B-00. Radioactive Cesium. Precipitation Method. Approved by 
Standard Methods Committee 2000. Standard Methods Online. (Available 
at http://www.standardmethods.org.)
American Public Health Association (APHA). 2000m. Standard Method 
7500-\3\H B-00. Tritium. Liquid Scintillation Spectrometric Method. 
Approved by Standard Methods Committee 2000. Standard Methods 
Online. (Available at http://www.standardmethods.org.)
American Public Health Association (APHA). 2000n. Standard Method 
7500-I B,C,D-00. Radioactive Iodine. B. Precipitation Method. C. 
Ion-Exchange Method. D. Distillation Method. Approved by Standard 
Methods Committee 2000. Standard Methods Online. (Available at 
http://www.standardmethods.org.)
American Public Health Association (APHA). 2000o. Standard Method 
7500-U B,C-00. Uranium. B. Radiochemical Method. C. Isotopic Method. 
Approved by Standard Methods Committee 2000. Standard Methods 
Online. (Available at http://www.standardmethods.org.)
American Public Health Association (APHA). 2001a. Standard Method 
2120 B-01. Color. Visual Comparison Method. Approved by Standard 
Methods Committee 2001. Standard Methods Online. (Available at 
http://www.standardmethods.org.)
American Public Health Association (APHA). 2001b. Standard Method 
2130 B-01. Turbidity. Nephelometric Method. Approved by Standard 
Methods Committee 2001. Standard Methods Online. (Available at 
http://www.standardmethods.org.)
American Public Health Association (APHA). 2001c. Standard Method 
7500-Ra B,C,D-01. Radium. B. Precipitation Method. C. Emanation 
Method. D. Sequential Precipitation Method. Approved by Standard 
Methods Committee 2001. Standard Methods Online. (Available at 
http://www.standardmethods.org.)
American Public Health Association (APHA). 2001d. Standard Method 
7500-Sr B-01. Total Radioactive Strontium and Strontium-90. 
Precipitation Method. Approved by Standard Methods Committee 2001. 
Standard Methods Online. (Available at http://www.standardmethods.org.)
American Public Health Association (APHA). 2012. 22nd 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. 1999. ASTM D1293-99. Standard Test Methods for 
pH of Water. ASTM International, 100 Barr Harbor Drive, West 
Conshohocken, PA 19428-2959. (Available at http://www.astm.org.)
ASTM International. 2002a. ASTM D516-02. Standard Test Method for 
Sulfate Ion in Water. ASTM International, 100 Barr Harbor Drive, 
West Conshohocken, PA 19428-2959. (Available at http://www.astm.org.)
ASTM International. 2002b. ASTM D1067-02 B. Standard Test Methods 
for Acidity or Alkalinity of Water. Electrometric or Color-Change 
Titration. ASTM International, 100 Barr Harbor Drive, West 
Conshohocken, PA 19428-2959. (Available at http://www.astm.org.)
ASTM International. 2011a. ASTM D516-11. Standard Test Method for 
Sulfate Ion in Water. ASTM International, 100 Barr Harbor Drive, 
West Conshohocken, PA 19428-2959. (Available at http://www.astm.org.)
ASTM International. 2011b. ASTM D1067-11 B. Standard Test Methods 
for Acidity or Alkalinity of Water. Electrometric or Color-Change 
Titration. ASTM International, 100 Barr Harbor Drive, West 
Conshohocken, PA 19428-2959. (Available at http://www.astm.org.)
ASTM International. 2012. ASTM D1293-12. Standard Test Methods for 
pH of Water. ASTM International, 100 Barr Harbor Drive, West 
Conshohocken, PA 19428-2959. (Available at http://www.astm.org.)
Best, J. 2012. Memo to the record describing basis for expedited 
approval of micro methods from the 22nd edition of Standard Methods 
for the Examination of Water and Wastewater. January 6, 2013.
Charm Sciences Inc. 2012a. Fast Phage Test Procedure. Presence/
Absence for Coliphage in Ground Water with Same Day Positive 
Prediction. Version 009. November 28, 2012. 659 Andover Street, 
Lawrence, MA 01843. (Available at www.charmsciences.com).
Charm Sciences Inc. 2012b. ATP Study Report of Modified Method 1601 
(Fast Phage) for Somatic and Male-Specific Coliphage. ATP Case Study 
D09-0007. August 22, 2012. 659 Andover Street, Lawrence, MA 01843.
Sinclair, J. 2013. Memo to the record describing basis for expedited 
approval of Charm Sciences Fast Phage. April 2, 2013.
Smith, G. 2012. Memo to the record describing basis for expedited 
approval of updated methods from ASTM International. November 19, 
2012.
Smith, G. and Wendelken, S. 2012a. Memo to the record describing 
basis for

[[Page 32565]]

expedited approval of EPA Method 524.4. November 19, 2012.
Smith, G. and Wendelken, S. 2012b. Memo to the record describing 
basis for expedited approval of methods from the 22nd edition of 
Standard Methods for the Examination of Water and Wastewater. 
November 26, 2012.
USEPA. 1995. EPA Method 524.2, Revision 4.1, ``Measurement of 
Purgeable Organic Compounds in Water by Capillary Column Gas 
Chromatography/Mass Spectrometry'' in Methods for the Determination 
of Organic Compounds in Drinking Water--Supplement III, EPA/600/R-
95-131. (Available at https://www.nemi.gov.)
USEPA. 2000. EPA Method 514.4, Revision 1.0, ``Determination of 
Chlorinated Acids in Drinking Water by Liquid-Liquid 
Microextraction, Derivatization and Fast Gas Chromatography with 
Electron Capture Detection,'' EPA/815/B-00/001, April 2000. 
(Available at https://www.nemi.gov.)
USEPA. 2001a. EPA Method 531.2, Revision 1.0, ``Measurement of N-
methylcarbamoyloximes and N-methylcarbamates in Water by Direct 
Aqueous Injection HPLC with Postcolumn Derivatization,'' EPA 815-B-
01-002, September 2001. (Available at https://www.nemi.gov.)
USEPA. 2001b. EPA Method 1601, ``Male-specific (F+) and Somatic 
Coliphage in Water by Two-step Enrichment Procedure'', EPA-821-R-01-
030, April 2001. (Available at http://www.epa.gov/nerlcwww/online.html.)
USEPA. 2009a. EPA Method 524.3, Version 1.0, ``Measurement of 
Purgeable Organic Compounds in Water by Capillary Column Gas 
Chromatography/Mass Spectrometry'', EPA-815-B-09-009, June 2009. 
(Available at http://water.epa.gov/drink.)
USEPA. 2009b. Expedited Approval of Test Procedures for the Analysis 
of Contaminants Under the Safe Drinking Water Act; Analysis and 
Sampling Procedures. 74 FR 38348. August 3, 2009.
USEPA. 2013. EPA Method 524.4, Version 1.0, ``Measurement of 
Purgeable Organic Compounds in Water by Gas Chromatography/Mass 
Spectrometry using Nitrogen Purge Gas'', EPA 815-R-13-002, May 2013. 
(Available at http://water.epa.gov/drink.)

Expedited Approval of Alternative Test Procedures for the Analysis of 
Contaminants Under the Safe Drinking Water Act; Analysis and Sampling 
Procedures, page 27 of 54

List of Subjects in 40 CFR Part 141

    Environmental protection, Chemicals, Indians-lands, 
Intergovernmental relations, Radiation protection, Reporting and 
recordkeeping requirements, Water supply.

    Dated: May 21, 2013.
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 the entire table entitled ``ALTERNATIVE TESTING METHODS 
FOR CONTAMINANTS LISTED AT 40 CFR 141.21(f)(3).''
0
b. By adding the table entitled ``ALTERNATIVE TESTING METHODS FOR 
CONTAMINANTS LISTED AT 40 CFR 141.21(f)(5)'' after the table entitled 
``ALTERNATIVE TESTING METHODS FOR CONTAMINANTS LISTED AT 40 CFR 
141.21(f)(3).''
0
c. By revising the table entitled ``ALTERNATIVE TESTING METHODS FOR 
CONTAMINANTS LISTED AT 40 CFR 141.21(f)(6).''
0
d. By revising the table entitled ``ALTERNATIVE TESTING METHODS FOR 
CONTAMINANTS LISTED AT 40 CFR 141.23(k)(1).''
0
e. By revising the table entitled ``ALTERNATIVE TESTING METHODS FOR 
CONTAMINANTS LISTED AT 40 CFR 141.24(e)(1).''
0
f. By revising the table entitled ``ALTERNATIVE TESTING METHODS FOR 
CONTAMINANTS LISTED AT 40 CFR 141.25(a).''
0
g. By revising the table entitled ``ALTERNATIVE TESTING METHODS FOR 
CONTAMINANTS LISTED AT 40 CFR 141.74(a)(1).''
0
h. By revising the table entitled ``ALTERNATIVE TESTING METHODS FOR 
DISINFECTANT RESIDUALS LISTED AT 40 CFR 141.74(a)(2).''
0
i. By revising the table entitled ``ALTERNATIVE TESTING METHODS FOR 
CONTAMINANTS LISTED AT 40 CFR 141.131(b)(1).''
0
j. By revising the table entitled ``ALTERNATIVE TESTING METHODS FOR 
DISINFECTANT RESIDUALS LISTED AT 40 CFR 141.131(c)(1).''
0
k. By revising the table entitled ``ALTERNATIVE TESTING METHODS FOR 
PARAMETERS LISTED AT 40 CFR 141.131(d).''
0
l. By revising the table entitled ``ALTERNATIVE TESTING METHODS FOR 
CONTAMINANTS LISTED AT 40 CFR 141.402(c)(2).''
0
m. By adding the table entitled ``ALTERNATIVE TESTING METHODS FOR 
CONTAMINANTS LISTED AT 40 CFR 141.852(a)(5)'' after the table entitled 
``ALTERNATIVE TESTING METHODS FOR CONTAMINANTS LISTED AT 40 CFR 
141.704(b).''
0
n. By revising the table entitled ``ALTERNATIVE TESTING METHODS FOR 
CONTAMINANTS LISTED AT 40 CFR 143.4(b).''
0
o. By revising footnotes 19, 20, and 21.
0
p. By adding footnotes 24 through 30 to the table.
    The additions and revisions 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 141.21(f)(3)
--------------------------------------------------------------------------------------------------------------------------------------------------------
             Organism                     Methodology           SM 21st  Edition \1\      SM 22nd  Edition \28\                    Other
--------------------------------------------------------------------------------------------------------------------------------------------------------
Total Coliforms...................  Total Coliform           9221 A, B                  9221 A, B
                                     Fermentation Technique.
                                    Total Coliform Membrane  9222 A, B, C
                                     Filter Technique.
                                    Presence-Absence (P-A)   9221 D
                                     Coliform Test.
                                    ONPG-MUG Test..........  9223                       9223 B
                                    Colitag\TM\............  .........................  .........................  Modified Colitag\TM\ \13\
--------------------------------------------------------------------------------------------------------------------------------------------------------

[[Page 32566]]

      Alternative Testing Methods for Contaminants Listed at 40 CFR
                              141.21(f)(5)
------------------------------------------------------------------------
           Organism              Methodology      SM 22nd edition \28\
------------------------------------------------------------------------
Fecal Coliforms..............  Fecal Coliform   9221 E.
                                Procedure.
------------------------------------------------------------------------

                                       Alternative Testing Methods for Contaminants Listed at 40 CFR 141.21(f)(6)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                         SM 20th  Edition    SM 21st  Edition     SM 22nd Edition
      Organism          Methodology             \6\                 \1\                \28\           SM  Online \3\                  Other
--------------------------------------------------------------------------------------------------------------------------------------------------------
E.coli.............  ONPG-MUG Test....  9223 B............  9223 B............  9223 B............  9223 B-97.........
                     Colitag\TM\......  ..................  ..................  ..................  ..................  Modified Colitag.\13\ \TM\
--------------------------------------------------------------------------------------------------------------------------------------------------------

                                       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
--------------------------------------------------------------------------------------------------------------------------------------------------------
Alkalinity......  Titrimetric.......  .......................  2320 B..........  2320 B..........  ................  D1067-06 B, 11
                                                                                                                      B
Antimony........  Hydride--Atomic     .......................  ................  ................  ................  D 3697-07
                   Absorption.
                  Atomic Absorption;  .......................  3113 B..........  3113 B..........  3113 B-04
                   Furnace.
                  Axially viewed      200.5, Revision 4.2 \2\
                   inductively
                   coupled plasma-
                   atomic emission
                   spectrometry
                   (AVICP-AES).
Arsenic.........  Atomic Absorption;  .......................  3113 B..........  3113 B..........  3113 B-04.......  D 2972-08 C
                   Furnace.
                  Hydride Atomic      .......................  3114 B..........  3114 B..........  3114 B-09.......  D 2972-08 B
                   Absorption.
                  Axially viewed      200.5, Revision 4.2 \2\
                   inductively
                   coupled plasma-
                   atomic emission
                   spectrometry
                   (AVICP-AES).
Barium..........  Inductively         .......................  3120 B..........  3120 B
                   Coupled Plasma.
                  Atomic Absorption;  .......................  3111 D..........  3111 D
                   Direct.
                  Atomic Absorption;  .......................  3113 B..........  3113 B..........  3113 B-04
                   Furnace.
                  Axially viewed      200.5, Revision 4.2 \2\
                   inductively
                   coupled plasma-
                   atomic emission
                   spectrometry
                   (AVICP-AES).
Beryllium.......  Inductively         .......................  3120 B..........  3120 B
                   Coupled Plasma.
                  Atomic Absorption;  .......................  3113 B..........  3113 B..........  3113 B-04.......  D 3645-08 B
                   Furnace.
                  Axially viewed      200.5, Revision 4.2 \2\
                   inductively
                   coupled plasma-
                   atomic emission
                   spectrometry
                   (AVICP-AES).
Cadmium.........  Atomic Absorption;  .......................  3113 B..........  3113 B..........  3113 B-04
                   Furnace.
                  Axially viewed      200.5, Revision 4.2 \2\
                   inductively
                   coupled plasma-
                   atomic emission
                   spectrometry
                   (AVICP-AES).
Calcium.........  EDTA titrimetric..  .......................  3500-Ca B.......  3500-Ca B.......  ................  D 511-09 A
                  Atomic Absorption;  .......................  3111 B..........  3111 B..........  ................  D 511-09 B
                   Direct Aspiration.
                  Inductively         .......................  3120 B..........  3120 B
                   Coupled Plasma.
                  Axially viewed      200.5, Revision 4.2 \2\
                   inductively
                   coupled plasma-
                   atomic emission
                   spectrometry
                   (AVICP-AES).
                  Ion Chromatography  .......................  ................  ................  ................  D 6919-09        ..................
Chromium........  Inductively         .......................  3120 B..........  3120 B
                   Coupled Plasma.
                  Atomic Absorption;  .......................  3113 B..........  3113 B..........  3113 B-04
                   Furnace.
                  Axially viewed      200.5, Revision 4.2 \2\
                   inductively
                   coupled plasma-
                   atomic emission
                   spectrometry
                   (AVICP-AES).
Copper..........  Atomic Absorption;  .......................  3113 B..........  3113 B..........  3113 B-04.......  D 1688-07 C
                   Furnace.
                  Atomic Absorption;  .......................  3111 B..........  3111 B..........  ................  D 1688-07 A
                   Direct Aspiration.
                  Inductively         .......................  3120 B..........  3120 B
                   Coupled Plasma.
                  Axially viewed      200.5, Revision 4.2 \2\
                   inductively
                   coupled plasma-
                   atomic emission
                   spectrometry
                   (AVICP-AES).
Conductivity....  Conductance.......  .......................  2510 B..........  2510 B

[[Page 32567]]

 
Cyanide.........  Manual              .......................  ................  ................  ................  D 2036-06 A
                   Distillation
                   followed by.
                  Spectrophotometric  .......................  4500-CN- G......  4500-CN- G......  ................  D 2036-06 B
                   , Amenable.
                  Spectrophotometric  .......................  4500-CN- E......  4500-CN- E......  ................  D2036-06 A
                   Manual.
                  Selective           .......................  4500-CN- F......  4500-CN- F......
                   Electrode.
                  Headspace Gas       .......................  ................  ................  ................  ...............  ME355.01 \7\
                   Chromatography/
                   Mass Spectrometry.
Fluoride........  Ion Chromatography  .......................  4110 B..........  4110 B
                  Manual              .......................  4500-F- B, D....  4500-F- B, D....
                   Distillation;
                   Colorimetric
                   SPADNS.
                  Manual Electrode..  .......................  4500-F- C.......  4500-F- C.......  ................  D 1179-04, 10 B
                  Automated Alizarin  .......................  4500-F- E.......  4500-F- E.......
                  Arsenite-Free       .......................  ................  ................  ................  ...............  Hach SPADNS 2
                   Colorimetric                                                                                                        Method 10225.\22\
                   SPADNS.
Lead............  Atomic Absorption;  .......................  3113 B..........  3113 B..........  3113 B-04.......  D 3559-08 D
                   Furnace.
                  Axially viewed      200.5, Revision 4.2 \2\
                   inductively
                   coupled plasma-
                   atomic emission
                   spectrometry
                   (AVICP-AES).
Magnesium.......  Atomic Absorption.  .......................  3111 B..........  3111 B..........  ................  D 511-09 B
                  Inductively         .......................  3120 B..........  3120 B
                   Coupled Plasma.
                  Complexation        .......................  3500-Mg B.......  3500-Mg B.......  ................  D 511-09 A
                   Titrimetric
                   Methods.
                  Axially viewed      200.5, Revision 4.2 \2\
                   inductively
                   coupled plasma-
                   atomic emission
                   spectrometry
                   (AVICP-AES).
                  Ion Chromatography  .......................  ................  ................  ................  D 6919-09
Mercury.........  Manual, Cold Vapor  .......................  3112 B..........  3112 B..........  3112 B-09
Nickel..........  Inductively         .......................  3120 B..........  3120 B
                   Coupled Plasma.
                  Atomic Absorption;  .......................  3111 B..........  3111 B
                   Direct.
                  Atomic Absorption;  .......................  3113 B..........  3113 B..........  3113 B-04
                   Furnace.
                  Axially viewed      200.5, Revision 4.2 \2\
                   inductively
                   coupled plasma-
                   atomic emission
                   spectrometry
                   (AVICP-AES).
Nitrate.........  Ion Chromatography  .......................  4110 B..........  4110 B
                  Automated Cadmium   .......................  4500-NO3- F.....  4500-NO3- F.
                   Reduction.
                  Manual Cadmium      .......................  4500-NO3- E.....  4500-NO3- E.....
                   Reduction.
                  Ion Selective       .......................  4500-NO3- D.....  4500-NO3- D.
                   Electrode.
                  Reduction/          .......................  ................  ................  ................  ...............  Systea Easy
                   Colorimetric.                                                                                                      (1-Reagent).\8\
                  Colorimetric;       .......................  ................  ................  ................  ...............  Hach TNTplus\TM\
                   Direct.                                                                                                             835/836 Method
                                                                                                                                       10206.\23\
Nitrite.........  Ion Chromatography  .......................  4110 B..........  4110 B
                  Automated Cadmium   .......................  4500-NO3- F.....  4500-NO3- F.
                   Reduction.
                  Manual Cadmium      .......................  4500-NO3- E.....  4500-NO3- E.
                   Reduction.
                  Spectrophotometric  .......................  4500-NO2- B.....  4500-NO2- B.
                  Reduction/          .......................  ................  ................  ................  ...............  Systea Easy
                   Colorimetric.                                                                                                      (1-Reagent).\8\
Orthophosphate..  Ion Chromatography  .......................  4110 B..........  4110 B
                  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
                   Automated,
                   Ascorbic Acid.

[[Page 32568]]

 
pH..............  Electrometric.....  .......................  4500-H+ B.......  4500-H+ B.......  ................  D 1293-12
Selenium........  Hydride-Atomic      .......................  3114 B..........  3114 B..........  3114 B-09.......  D 3859-08 A
                   Absorption.
                  Atomic Absorption;  .......................  3113 B..........  3113 B..........  3113 B-04.......  D 3859-08 B
                   Furnace.
                  Axially viewed      200.5, Revision 4.2 \2\
                   inductively
                   coupled plasma-
                   atomic emission
                   spectrometry
                   (AVICP-AES).
Silica..........  Colorimetric......  .......................  ................  ................  ................  D859-05, 10
                  Molybdosilicate...  .......................  4500-SiO2 C.....  4500-SiO2 C.
                  Heteropoly blue...  .......................  4500-SiO2 D.....  4500-SiO2 D.
                  Automated for       .......................  4500-SiO2 E.....  4500-SiO2 E.
                   Molybdate-
                   reactive Silica.
                  Axially viewed      200.5, Revision 4.2 \2\
                   inductively
                   coupled plasma-
                   atomic emission
                   spectrometry
                   (AVICP-AES).
                  Inductively         .......................  3120 B..........  3120 B
                   Coupled Plasma.
Sodium..........  Atomic Absorption;  .......................  3111 B..........  3111 B
                   Direct Aspiration.
                  Axially viewed      200.5, Revision 4.2 \2\
                   inductively
                   coupled plasma-
                   atomic emission
                   spectrometry
                   (AVICP-AES).
                  Ion Chromatography  .......................  ................  ................  ................  D 6919-09
Temperature.....  Thermometric......  .......................  2550............  2550
--------------------------------------------------------------------------------------------------------------------------------------------------------

                                       Alternative Testing Methods for Contaminants Listed at 40 CFR 141.24(e)(1)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                                               SM 21st  edition     SM 22nd edition
           Contaminant                       Methodology                    EPA method                \1\                \28\           SM  online \3\
--------------------------------------------------------------------------------------------------------------------------------------------------------
Benzene.........................  Purge & trap/Gas Chromatography/      524.3,\9\ 524.4 \29\
                                   Mass Spectrometry.
Carbon tetrachloride............  Purge & trap/Gas Chromatography/      524.3,\9\ 524.4 \29\
                                   Mass Spectrometry.
Chlorobenzene...................  Purge & trap/Gas Chromatography/      524.3,\9\ 524.4 \29\
                                   Mass Spectrometry.
1,2-Dichlorobenzene.............  Purge & trap/Gas Chromatography/      524.3,\9\ 524.4 \29\
                                   Mass Spectrometry.
1,4-Dichlorobenzene.............  Purge & trap/Gas Chromatography/      524.3,\9\ 524.4 \29\
                                   Mass Spectrometry.
1,2-Dichloroethane..............  Purge & trap/Gas Chromatography/      524.3,\9\ 524.4 \29\
                                   Mass Spectrometry.
cis-Dichloroethylene............  Purge & trap/Gas Chromatography/      524.3,\9\ 524.4 \29\
                                   Mass Spectrometry.
trans-Dichloroethylene..........  Purge & trap/Gas Chromatography/      524.3,\9\ 524.4 \29\
                                   Mass Spectrometry.
Dichloromethane.................  Purge & trap/Gas Chromatography/      524.3,\9\ 524.4 \29\
                                   Mass Spectrometry.
1,2-Dichloropropane.............  Purge & trap/Gas Chromatography/      524.3,\9\ 524.4 \29\
                                   Mass Spectrometry.
Ethylbenzene....................  Purge & trap/Gas Chromatography/      524.3,\9\ 524.4 \29\
                                   Mass Spectrometry.
Styrene.........................  Purge & trap/Gas Chromatography/      524.3,\9\ 524.4 \29\
                                   Mass Spectrometry.
Tetrachloroethylene.............  Purge & trap/Gas Chromatography/      524.3,\9\ 524.4 \29\
                                   Mass Spectrometry.
1,1,1-Trichloroethane...........  Purge & trap/Gas Chromatography/      524.3,\9\ 524.4 \29\
                                   Mass Spectrometry.
Trichloroethylene...............  Purge & trap/Gas Chromatography/      524.3,\9\ 524.4 \29\
                                   Mass Spectrometry.
Toluene.........................  Purge & trap/Gas Chromatography/      524.3,\9\ 524.4 \29\
                                   Mass Spectrometry.
1,2,4-Trichlorobenzene..........  Purge & trap/Gas Chromatography/      524.3,\9\ 524.4 \29\
                                   Mass Spectrometry.
1,1-Dichloroethylene............  Purge & trap/Gas Chromatography/      524.3,\9\ 524.4 \29\
                                   Mass Spectrometry.

[[Page 32569]]

 
1,1,2-Trichlorethane............  Purge & trap/Gas Chromatography/      524.3,\9\ 524.4 \29\
                                   Mass Spectrometry.
Vinyl chloride..................  Purge & trap/Gas Chromatography/      524.3,\9\ 524.4 \29\
                                   Mass Spectrometry.
Xylenes (total).................  Purge & trap/Gas Chromatography/      524.3,\9\ 524.4 \29\
                                   Mass Spectrometry.
2,4-D...........................  Gas Chromatography/Electron        .......................  6640 B............  6640 B............  6640 B-01.
                                   Capture Detection (GC/ECD).
2,4,5-TP (Silvex)...............  Gas Chromatography/Electron        .......................  6640 B............  6640 B............  6640 B-01.
                                   Capture Detection (GC/ECD).
Alachlor........................  Solid Phase Extraction/Gas                      525.3 \24\
                                   Chromatography/Mass Spectrometry
                                   (GC/MS).
Atrazine........................  Liquid Chromatography                             536 \25\
                                   Electrospray Ionization Tandem
                                   Mass Spectrometry (LC/ESI-MS/MS).
                                  Solid Phase Extraction/Gas            525.3, \24\ 523 \26\
                                   Chromatography/Mass Spectrometry
                                   (GC/MS).
Benzo(a)pyrene..................  Solid Phase Extraction/Gas                      525.3 \24\
                                   Chromatography/Mass Spectrometry
                                   (GC/MS).
Carbofuran......................  High-performance liquid            .......................  6610 B............  6610 B............  6610 B-04.
                                   chromatography (HPLC) with post-
                                   column derivatization and
                                   fluorescence detection.
Chlordane.......................  Solid Phase Extraction/Gas                      525.3 \24\
                                   Chromatography/Mass Spectrometry
                                   (GC/MS).
Dalapon.........................  Ion Chromatography Electrospray                   557 \14\
                                   Ionization Tandem Mass
                                   Spectrometry (IC-ESI-MS/MS).
                                  Gas Chromatography/Electron        .......................  6640 B............  6640 B............  6640 B-01.
                                   Capture Detection (GC/ECD).
Di(2-ethylhexyl)adipate.........  Solid Phase Extraction/Gas                      525.3 \24\
                                   Chromatography/Mass Spectrometry
                                   (GC/MS).
Di(2-ethylhexyl)phthalate.......  Solid Phase Extraction/Gas                      525.3 \24\
                                   Chromatography/Mass Spectrometry
                                   (GC/MS).
Dibromochloropropane (DBCP).....  Purge & trap/Gas Chromatography/                 524.3 \9\
                                   Mass Spectrometry.
Dinoseb.........................  Gas Chromatography/Electron        .......................  6640 B............  6640 B............  6640 B-01.
                                   Capture Detection (GC/ECD).
Endrin..........................  Solid Phase Extraction/Gas                      525.3 \24\
                                   Chromatography/Mass Spectrometry
                                   (GC/MS).
Ethyl dibromide (EDB)...........  Purge & trap/Gas Chromatography/                 524.3 \9\
                                   Mass Spectrometry.
Glyphosate......................  High-Performance Liquid            .......................  6651 B............  6651 B............  6651 B-00.
                                   Chromatography (HPLC) with Post-
                                   Column Derivatization and
                                   Fluorescence Detection.
Heptachlor......................  Solid Phase Extraction/Gas                      525.3 \24\
                                   Chromatography/Mass Spectrometry
                                   (GC/MS).
Heptachlor Epoxide..............  Solid Phase Extraction/Gas                      525.3 \24\
                                   Chromatography/Mass Spectrometry
                                   (GC/MS).
Hexachlorobenzene...............  Solid Phase Extraction/Gas                      525.3 \24\
                                   Chromatography/Mass Spectrometry
                                   (GC/MS).
Hexachlorocyclo-pentadiene......  Solid Phase Extraction/Gas                      525.3 \24\
                                   Chromatography/Mass Spectrometry
                                   (GC/MS).
Lindane.........................  Solid Phase Extraction/Gas                      525.3 \24\
                                   Chromatography/Mass Spectrometry
                                   (GC/MS).
Methoxychlor....................  Solid Phase Extraction/Gas                      525.3 \24\
                                   Chromatography/Mass Spectrometry
                                   (GC/MS).
Oxamyl..........................  High-performance liquid            .......................  6610 B............  6610 B............  6610 B-04.
                                   chromatography (HPLC) with post-
                                   column derivatization and
                                   fluorescence detection.
PCBs (as Aroclors)..............  Solid Phase Extraction/Gas                      525.3 \24\
                                   Chromatography/Mass Spectrometry
                                   (GC/MS).
Pentachlorophenol...............  Gas Chromatography/Electron        .......................  6640 B............  6640 B............  6640 B-01.
                                   Capture Detection (GC/ECD).
                                  Solid Phase Extraction/Gas                      525.3 \24\
                                   Chromatography/Mass Spectrometry
                                   (GC/MS).
Picloram........................  Gas Chromatography/Electron        .......................  6640 B............  6640 B............  6640 B-01.
                                   Capture Detection (GC/ECD).
Simazine........................  Liquid Chromatography                             536 \25\
                                   Electrospray Ionization Tandem
                                   Mass Spectrometry (LC/ESI-MS/MS).

[[Page 32570]]

 
                                  Solid Phase Extraction/Gas             525.3,\24\ 523 \26\
                                   Chromatography/Mass Spectrometry
                                   (GC/MS).
Toxaphene.......................  Solid Phase Extraction/Gas                      525.3 \24\
                                   Chromatography/Mass Spectrometry
                                   (GC/MS).
Total Trihalomethanes...........  Purge & trap/Gas Chromatography/      524.3,\9\ 524.4 \29\
                                   Mass Spectrometry.
--------------------------------------------------------------------------------------------------------------------------------------------------------

                     Alternative Testing Methods for Contaminants Listed at 40 CFR 141.25(a)
----------------------------------------------------------------------------------------------------------------
                                                      SM 21st Edition   SM 22nd Edition
         Contaminant                Methodology             \1\              \28\                ASTM \4\
----------------------------------------------------------------------------------------------------------------
Naturally Occurring:
Gross alpha and beta.........  Evaporation.........  7110 B..........  7110 B
Gross alpha..................  Coprecipitation.....  7110 C..........  7110 C
Radium 226...................  Radon emanation.....  7500-Ra C.......  7500-Ra C.......                 D3454-05
                               Radiochemical.......  7500-Ra B.......  7500-Ra B.......                 D2460-07
Radium 228...................  Radiochemical.......  7500-Ra D.......  7500-Ra D
Uranium......................  Radiochemical.......  7500-U B........  7500-U B
                               ICP-MS..............  3125............  ................             D5673-05, 10
                               Alpha spectrometry..  7500-U C........  7500-U C........                 D3972-09
                               Laser Phosphorimetry  ................  ................                 D5174-07
                               Alpha Liquid          ................  ................                 D6239-09
                                Scintillation
                                Spectrometry.
Man-Made:
Radioactive Cesium...........  Radiochemical.......  7500-Cs B.......  7500-Cs B
                               Gamma Ray             7120............  7120............                 D3649-06
                                Spectrometry.
Radioactive Iodine...........  Radiochemical.......  7500-I B........  7500-I B........                 D3649-06
                               ....................  7500-I C........  7500-I C
                               ....................  7500-I D........  7500-I D
                               Gamma Ray             7120............  7120............                 D4785-08
                                Spectrometry.
Radioactive Strontium 89, 90.  Radiochemical.......  7500-Sr B.......  7500-Sr B
Tritium......................  Liquid Scintillation  7500-\3\H B.....  7500-\3\H B.....                 D4107-08
Gamma Emitters...............  Gamma Ray             7120............  7120............                 D3649-06
                                Spectrometry.
                               ....................  7500-Cs B.......  7500-Cs B.......                 D4785-08
                               ....................  7500-I B........  7500-I B
----------------------------------------------------------------------------------------------------------------

                   Alternative Testing Methods for Contaminants Listed at 40 CFR 141.74(a)(1)
----------------------------------------------------------------------------------------------------------------
                                                         SM 21st edition\    SM 22nd edition
           Organism                   Methodology               1\                 \28\              Other
----------------------------------------------------------------------------------------------------------------
Total Coliform................  Total Coliform          9221 A, B, C......  9221 A, B, C.....
                                 Fermentation
                                 Technique.
                                Total Coliform          9222 A, B, C......
                                 Membrane Filter
                                 Technique.
                                ONPG-MUG Test.........  9223..............  9223 B...........
Fecal Coliforms...............  Fecal Coliform          9221 E............  9221 E...........
                                 Procedure.
                                Fecal Coliform Filter   9222 D............  9222 D...........
                                 Procedure.
Heterotrophic bacteria........  Pour Plate Method.....  9215 B............  9215 B...........
Turbidity.....................  Nephelometric Method..  2130 B............  2130 B...........
                                Laser Nephelometry (on- ..................  .................  Mitchell M5271
                                 line).                                                         \10\
                                LED Nephelometry (on-   ..................  .................  Mitchell M5331
                                 line).                                                         \11\
                                LED Nephelometry (on-   ..................  .................  AMI Turbiwell
                                 line).                                                         \15\
                                LED Nephelometry        ..................  .................  Orion AQ4500 \12\
                                 (portable).
----------------------------------------------------------------------------------------------------------------

                                  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
                                     Titration.
                                    DPD Ferrous           4500-Cl F............  4500-Cl F
                                     Titrimetric.
                                    DPD Colorimetric....  4500-Cl G              4500-Cl G............
                                    Syringaldazine        4500-Cl H............  4500-Cl H
                                     (FACTS).
                                    On-line Chlorine      .....................  .....................  .....................  EPA 334.0 \16\
                                     Analyzer.
                                    Amperometric Sensor.  .....................  .....................  .....................  ChloroSense \17\
Total Chlorine....................  Amperometric          4500-Cl D............  4500-Cl D............  D 1253-08
                                     Titration.
                                    Amperometric          4500-Cl E............  4500-Cl E
                                     Titration (Low
                                     level measurement).

[[Page 32571]]

 
                                    DPD Ferrous           4500-Cl F............  4500-Cl F
                                     Titrimetric.
                                    DPD Colorimetric....  4500-Cl G............  4500-Cl G
                                    Iodometric Electrode  4500-Cl I............  4500-Cl I
                                    On-line Chlorine      .....................  .....................  .....................  EPA 334.0 \16\
                                     Analyzer.
                                    Amperometric Sensor.  .....................  .....................  .....................  ChloroSense \17\
Chlorine Dioxide..................  Amperometric          4500-ClO2 C..........  4500-ClO2 C..........
                                     Titration.
                                    Amperometric          4500-ClO2 E..........  4500-ClO2 E..........
                                     Titration.
Ozone.............................  Indigo Method.......  4500-O3 B............  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\    SM 22nd  edition \28\
--------------------------------------------------------------------------------------------------------------------------------------------------------
TTHM..............................  P&T/GC/MS...........  524.3,\9\ 524.4 \29\.
HAA5..............................  LLE (diazomethane)/   .....................  .....................  6251 B...............  6251 B
                                     GC/ECD.
                                    Ion Chromatography    557 \14\.............
                                     Electrospray
                                     Ionization Tandem
                                     Mass Spectrometry
                                     (IC-ESI-MS/MS).
Bromate...........................  Two-Dimensional Ion   302.0 \18\...........
                                     Chromatography (IC).
                                    Ion Chromatography    557 \14\.............
                                     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 as       ....................  .....................
 prescribed in 40 CFR
 141.132(b)(2)(i)(A).
Amperometric Titration............  ....................  .....................  4500-ClO2 E..........  4500-ClO2 E..........
--------------------------------------------------------------------------------------------------------------------------------------------------------

                                  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............
                                     Titration.
                                    DPD Ferrous           4500-Cl F............  4500-Cl F............
                                     Titrimetric.
                                    DPD Colorimetric....  4500-Cl G............  4500-Cl G............
                                    Syringaldazine        4500-Cl H............  4500-Cl H............
                                     (FACTS).
                                    Amperometric Sensor.  .....................  .....................  .....................  ChloroSense \17\
                                    On-line Chlorine      .....................  .....................  .....................  EPA 334.0 \16\
                                     Analyzer.
Combined Chlorine.................  Amperometric          4500-Cl D............  4500-Cl D............  D 1253-08............
                                     Titration.
                                    DPD Ferrous           4500-Cl F............  4500-Cl F............
                                     Titrimetric.
                                    DPD Colorimetric....  4500-Cl G............  4500-Cl G............
Total Chlorine....................  Amperometric          4500-Cl D............  4500-Cl D............  D 1253-08............
                                     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............
                                    Iodometric Electrode  4500-Cl I............  4500-Cl I............
                                    Amperometric Sensor.  .....................  .....................  .....................  ChloroSense \17\
                                    On-line Chlorine      .....................  .....................  .....................  EPA 334.0 \16\
                                     Analyzer.
Chlorine Dioxide..................  Amperometric Method   4500-ClO2 E..........  4500-ClO2 E..........
                                     II.
--------------------------------------------------------------------------------------------------------------------------------------------------------

* * * * *

[[Page 32572]]

                     Alternative Testing Methods for Parameters Listed at 40 CFR 141.131(d)
----------------------------------------------------------------------------------------------------------------
                                                  SM 21st  edition  SM 22nd  edition
          Parameter               Methodology           \1\               \28\                    EPA
----------------------------------------------------------------------------------------------------------------
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\
                                Ultraviolet or
                                Heated
                                Persulfate
                                Oxidation.
                               Wet Oxidation...  5310 D...........  5310 D..........  415.3, Rev 1.2 \19\
Specific Ultraviolet           Calculation       .................  ................  415.3, Rev 1.2 \19\
 Absorbance (SUVA).             using DOC and
                                UV254 data.
    Dissolved Organic Carbon   High Temperature  5310 B...........  5310 B..........  415.3, Rev 1.2 \19\
     (DOC).                     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  Spectrophotometr  5910 B...........  5910 B..........  415.3, Rev 1.2 \19\
     254 nm (UV254).            y.
----------------------------------------------------------------------------------------------------------------

* * * * *

                                       Alternative Testing Methods for Contaminants Listed at 40 CFR 141.402(c)(2)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                       SM 20th  edition    SM 21st  edition    SM 22nd  edition
            Organism                 Methodology             \6\                  \1\                \28\            SM online \3\           Other
--------------------------------------------------------------------------------------------------------------------------------------------------------
E. coli........................  Colilert [supreg].  ...................  9223 B............  9223 B............  9223 B-97           ..................
                                 Colisure [supreg].  ...................  9223 B............  9223 B............  9223 B-97           ..................
                                 Colilert-18.......  9223 B.............  9223 B............  9223 B............  9223 B-97           ..................
                                 Readycult [supreg]  ...................  ..................  ..................  ..................  Ready-
                                                                                                                                      cult [supreg] \20\
                                 Colitag...........  ...................  ..................  ..................  ..................  Modified Coli-
                                                                                                                                      tag TM \13\
                                 Chromocult          ...................  ..................  ..................  ..................  Chromo-
                                  [supreg].                                                                                           cult [supreg] \21\
                                 EC-MUG............  ...................  ..................  9221 F............
Enterococci....................  Multiple-Tube       ...................  ..................  ..................  9230 B-04.........
                                  Technique.
Coliphage......................  Two-Step            ...................  ..................  ..................  ..................  Fast Phage \30\
                                  Enrichment
                                  Presence-Absence
                                  Procedure.
--------------------------------------------------------------------------------------------------------------------------------------------------------

* * * * *

                   Alternative Testing Methods for Contaminants Listed at 40 CFR 141.852(a)(5)
----------------------------------------------------------------------------------------------------------------
             Organism                Methodology category         Method               SM 22nd edition \28\
----------------------------------------------------------------------------------------------------------------
Total Coliforms...................  Lactose Fermentation   Standard Total        9221 B.1, B.2
                                     Methods.               Coliform
                                                            Fermentation
                                                            Technique.
                                    Enzyme Substrate       Colilert [supreg]...  9223 B
                                     Methods.
                                                           Colisure [supreg]...  9223 B
Escherichia coli..................  Escherichia coli       EC-MUG medium.......  9221 F.1
                                     Procedure (following
                                     Lactose Fermentation
                                     Methods).
                                    Enzyme Substrate       Colilert [supreg]...  9223 B
                                     Methods.
                                                           Colisure [supreg]...  9223 B
----------------------------------------------------------------------------------------------------------------

                                         Alternative Testing Methods for Contaminants Listed at 40 CFR 143.4(b)
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                                          SM 21st Edition     SM 22nd Edition
         Contaminant              Methodology       EPA method           ASTM \4\               \1\                \28\               SM Online \3\
--------------------------------------------------------------------------------------------------------------------------------------------------------
Aluminum.....................  Axially viewed    200.5, Revision
                                inductively       4.2. \2\.
                                coupled plasma-
                                atomic emission
                                spectrometry
                                (AVICP-AES).
                               Atomic            ................  ...................  3111 D............  3111 D              ........................
                                Absorption;
                                Direct.
                               Atomic            ................  ...................  3113 B............  3113 B............  3113 B-04
                                Absorption;
                                Furnace.
                               Inductively       ................  ...................  3120 B............  3120 B              ........................
                                Coupled Plasma.

[[Page 32573]]

 
Chloride.....................  Silver Nitrate    ................  D 512-04 B.........  4500-Cl- B........  4500-Cl- B          ........................
                                Titration.
                               Ion               ................  ...................  4110 B............  4110 B              ........................
                                Chromatography.
                               Potentiometric    ................  ...................  4500-Cl- D........  4500-Cl- D          ........................
                                Titration.
Color........................  Visual            ................  ...................  2120 B............  2120 B              ........................
                                Comparison.
Foaming Agents...............  Methylene Blue    ................  ...................  5540 C............  5540 C              ........................
                                Active
                                Substances
                                (MBAS).
Iron.........................  Axially viewed    200.5, Revision                                                                ........................
                                inductively       4.2.\2\.
                                coupled plasma-
                                atomic emission
                                spectrometry
                                (AVICP-AES).
                               Atomic            ................  ...................  3111 B............  3111 B              ........................
                                Absorption;
                                Direct.
                               Atomic            ................  ...................  3113 B............  3113 B............  3113 B-04.
                                Absorption;
                                Furnace.
Inductively Coupled Plasma...  ................  ................  3120 B.............  3120 B              ..................
Manganese....................  Axially viewed    200.5, Revision                                                                ........................
                                inductively       4.2.\2\.
                                coupled plasma-
                                atomic emission
                                spectrometry
                                (AVICP-AES).
                               Atomic            ................  ...................  3111 B............  3111 B              ........................
                                Absorption;
                                Direct.
                               Atomic            ................  ...................  3113 B............  3113 B              3113 B-04.
                                Absorption;
                                Furnace.
                               Inductively       ................  ...................  3120 B............  3120 B              ........................
                                Coupled Plasma.
Odor.........................  Threshold Odor    ................  ...................  2150 B............  2150 B              ........................
                                Test.
Silver.......................  Axially viewed    200.5, Revision
                                inductively       4.2 \2\.
                                coupled plasma-
                                atomic emission
                                spectrometry
                                (AVICP-AES).
                               Atomic            ................  ...................  3111 B............  3111 B
                                Absorption;
                                Direct.
                               Atomic            ................  ...................  3113 B............  3113 B............  3113 B-04.
                                Absorption;
                                Furnace.
                               Inductively       ................  ...................  3120 B............  3120 B              ........................
                                Coupled Plasma.
Sulfate......................  Ion               ................  ...................  4110 B............  4110 B              ........................
                                Chromatography.
                               Gravimetric with  ................  ...................  4500-SO42- C......  4500-SO42- C......  4500-SO42- C-97.
                                ignition of
                                residue.
                               Gravimetric with  ................  ...................  4500-SO42- D......  4500-SO42- D......  4500-SO42- D-97.
                                drying of
                                residue.
                               Turbidimetric     ................  D 516-07, 11.......  4500-SO42- E......  4500-SO42- E......  4500-SO42- E-97.
                                method.
                               Automated         ................  ...................  4500-SO42- F......  4500-SO42- F......  4500-SO42- F-97.
                                methylthymol
                                blue method.
Total Dissolved Solids.......  Total Dissolved   ................  ...................  2540 C............  2540 C............  ........................
                                Solids Dried at
                                180 deg C.
Zinc.........................  Axially viewed    200.5, Revision
                                inductively       4.2.\2\.
                                coupled plasma-
                                atomic emission
                                spectrometry
                                (AVICP-AES).
                               Atomic            ................  ...................  3111 B............  3111 B              ........................
                                Absorption;
                                Direct
                                Aspiration.
                               Inductively       ................  ...................  3120 B............  3120 B              ........................
                                Coupled Plasma.
--------------------------------------------------------------------------------------------------------------------------------------------------------

    \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/nerlcwww/ordmeth.htm.)
    \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

[[Page 32574]]

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.
    \7\ Method ME355.01, Revision 1.0. ``Determination of Cyanide in 
Drinking Water by GC/MS Headspace,'' May 26, 2009. Available at 
https://www.nemi.gov or from James Eaton, H & E Testing Laboratory, 
221 State Street, Augusta, ME 04333. (207) 287-2727.
    \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 
http://water.epa.gov/drink/.
    \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.
    \13\ 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. Available at 
https://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://water.epa.gov/drink/.
    \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 http://water.epa.gov/drink/.
    \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, 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://water.epa.gov/drink/.
    \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/nerlcwww/ordmeth.htm.
    \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 Millipore (division of Merck KGaA, 
Darmstadt, Germany), 290 Concord Road, Billerica, MA 01821.
    \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 Millipore (division of 
Merck KGaA, Darmstadt, Germany), 290 Concord Road, Billerica, MA 
01821.
    \22\ Hach Company. ``Hach Company SPADNS 2 (Arsenite-Free) 
Fluoride Method 10225--Spectrophotometric Measurement of Fluoride in 
Water and Wastewater,'' January 2011. 5600 Lindbergh Drive, P.O. Box 
389, Loveland, Colorado 80539. (Available at http://www.hach.com.)
    \23\ Hach Company. ``Hach Company TNTplus\TM\ 835/836 Nitrate 
Method 10206--Measurement of Nitrate in Water and Wastewater,'' 
January 2011. 5600 Lindbergh Drive, P.O. Box 389, Loveland, 
Colorado. (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/nerlcwww/ordmeth.htm.
    \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 http://water.epa.gov/drink.
    \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 http://water.epa.gov/drink.
    \27\ EPA Method 1623.1. ``Cryptosporidium and Giardia in Water 
by Filtration/IMS/FA,'' 2012. EPA-816-R-12-001. (Available at http://water.epa.gov/drink.)
    \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 
http://water.epa.gov/drink.
    \30\ Charm Sciences Inc. ``Fast Phage Test Procedure. Presence/
Absence for Coliphage in Ground Water with Same Day Positive 
Prediction''. Version 009. November 2012. 659 Andover Street, 
Lawrence, MA 01843. Available at www.charmsciences.com.

[FR Doc. 2013-12729 Filed 5-30-13; 8:45 am]
BILLING CODE 6550-50-P
```