Expedited Approval of Alternative Test Procedures for the Analysis of Contaminants Under the Safe Drinking Water Act; Analysis and Sampling Procedures, 34861-34870 [2017-15380]

Download as PDF 34861 Federal Register / Vol. 82, No. 143 / Thursday, July 27, 2017 / Rules and Regulations TABLE 2 TO SUBPART NNN OF PART 63—EMISSIONS LIMITS AND COMPLIANCE DATES If your source is a: And you commenced construction: Your emission limits are: 1 And you must comply by: 2 * * 12. Flame-attenuation line manufacturing any product. * * On or before November 25, 2011 ........... * * 1.4 lb phenol per ton of glass pulled ...... 5.6 lb formaldehyde per ton of glass pulled. 0.50 lb methanol per ton of glass pulled * July 31, 2018. * * * * * * * 1 The numeric limits do not apply during startup and shutdown. sources must demonstrate compliance by the compliance dates specified in this table. New sources have 180 days after the applicable compliance date to demonstrate compliance. 2 Existing ENVIRONMENTAL PROTECTION AGENCY 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. 40 CFR Part 141 DATES: [EPA–HQ–OW–2017–0284; FRL–9964–78– OW] ADDRESSES: * * * * * [FR Doc. 2017–14940 Filed 7–26–17; 8:45 am] BILLING CODE 6560–50–P 2017. Expedited Approval of Alternative Test Procedures for the Analysis of Contaminants Under the Safe Drinking Water Act; Analysis and Sampling Procedures Environmental Protection Agency (EPA). ACTION: Final rule. AGENCY: This action announces the U.S. Environmental Protection Agency’s (EPA’s) approval of alternative testing methods for use in measuring the levels of contaminants in drinking water and determining compliance with national primary drinking water regulations. The Safe Drinking Water Act authorizes EPA to approve the use of alternative testing methods through publication in the Federal Register. EPA is using this streamlined authority to make 17 additional methods available for analyzing drinking water samples. This expedited approach provides public SUMMARY: The EPA has established a docket for this action under Docket ID No. EPA–HQ–OW–2017–0284. All documents in the docket are listed on the https://www.regulations.gov Web site. Although listed in the index, some information is not publicly available, e.g., confidential business information (CBI) or other information whose disclosure is restricted by statute. Certain other material, such as copyrighted material, is not placed on the Internet and will be publicly available only in hard copy form. Publicly available docket materials are available electronically through https:// www.regulations.gov. The Safe Drinking Water Hotline (800) 426– 4791 or Glynda Smith, Technical Support Center, Standards and Risk Management Division, Office of Ground Water and Drinking Water (MS 140), Environmental Protection Agency, 26 West Martin Luther King Drive, Cincinnati, OH 45268; telephone FOR FURTHER INFORMATION CONTACT: Category State, local, & tribal governments. mstockstill on DSK30JT082PROD with RULES Industry ..................................... Municipalities ............................ 1 North This action is effective July 27, 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 the Safe Drinking Water Act (SDWA) may measure contaminants in water samples. When EPA sets a monitoring requirement in its national primary drinking water regulations for a given contaminant, the agency also establishes (in the regulations) standardized test procedures for analysis of the contaminant. This action makes alternative testing methods available for particular drinking water contaminants beyond the testing methods currently established in the regulations. EPA is providing public water systems, required to test water samples, with a choice of using either a test procedure already established in the existing regulations or an alternative testing method that has been approved in this action or in prior expedited approval actions. Categories and entities that may ultimately be affected by this action include: NAICS 1 Examples of potentially regulated entities State, local and tribal governments that analyze water samples on behalf of public water systems required to conduct such analysis; state, local and tribal governments that directly operate community and non-transient non-community water systems required to monitor. Private operators of community and non-transient non-community water systems required to monitor. Municipal operators of community and non-transient non-community water systems required to monitor. 924110 221310 924110 American Industry Classification System. This table is not intended to be exhaustive, but rather provides a guide VerDate Sep<11>2014 17:07 Jul 26, 2017 Jkt 241001 for readers regarding entities likely to be interested in this action. This table lists PO 00000 Frm 00027 Fmt 4700 Sfmt 4700 the types of entities that EPA is now aware could potentially be affected by E:\FR\FM\27JYR1.SGM 27JYR1 34862 Federal Register / Vol. 82, No. 143 / Thursday, July 27, 2017 / Rules and Regulations this action. Other types of entities not listed in the table could also have some interest. To determine whether your facility is affected by this action, you should carefully examine the applicability language in the Code of Federal Regulations (CFR) at 40 CFR 141.2 (definition of a public water system). If you have questions regarding the applicability of this action to a particular entity, consult the person listed in the preceding FOR FURTHER INFORMATION CONTACT section. Abbreviations and Acronyms Used In This Action APHA: American Public Health Association ATP: Alternate Test Procedure CBI: Confidential Business Information CFR: Code of Federal Regulations EPA: United States Environmental Protection Agency GWR: Ground Water Rule HAA: Haloacetic Acid HAA5: Haloacetic Acids (five) (sum of monochloroacetic acid, dichloroacetic acid, trichloroacetic acid, monobromoacetic acid and dibromoacetic acid) IC: Ion Chromatography ISFETs: Ion Selective Field Effect Transistors LED: Light Emitting Diode NAICS: North American Industry Classification System QC: Quality Control RTCR: Revisions to the Total Coliform Rule SDWA: The Safe Drinking Water Act SM: Standard Method TCR: Total Coliform Rule VCSB: Voluntary Consensus Standard Bodies II. Background mstockstill on DSK30JT082PROD with RULES A. What is the purpose of this action? In this action, EPA is approving 17 analytical methods for determining contaminant concentrations in drinking water samples collected under SDWA. Regulated parties required to sample and monitor may use either the testing methods already established in existing regulations or the alternative testing methods being approved in this action or in prior expedited approval actions. The new methods are listed along with other methods similarly approved through previous expedited actions in 40 CFR part 141, appendix A to subpart C and on EPA’s drinking water methods Web site at https://www.epa.gov/ dwanalyticalmethods. B. What is the basis for this action? When EPA determines that an alternative analytical method is ‘‘equally effective’’ (i.e., as effective as a method that has already been promulgated in the regulations), SDWA allows EPA to approve the use of the alternative testing method through publication in the Federal Register (see section 1401(1) of SDWA). EPA is using VerDate Sep<11>2014 17:07 Jul 26, 2017 Jkt 241001 this streamlined approval authority to make 17 additional methods available for determining contaminant concentrations in drinking water samples collected under SDWA. EPA has determined that, for each contaminant or group of contaminants listed in Section III, the additional testing methods being approved in this action are as effective as one or more of the testing methods already approved in the regulations for those contaminants. Section 1401(1) of SDWA states that the newly approved methods ‘‘shall be treated as an alternative for public water systems to the quality control and testing procedures listed in the regulation.’’ Accordingly, this action makes these additional 17 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 17 methods that are equally effective relative to methods previously promulgated in the regulations. By means of this action, these 17 methods are added to appendix A to subpart C of 40 CFR part 141. A. Methods Developed by EPA 1. EPA Method 150.3, Determination of pH in Drinking Water (USEPA 2017). EPA Method 150.3 was developed in response to comments from state regulators and utility operators that EPA Methods 150.1 (USEPA 1983a) and 150.2 (USEPA 1983b), currently approved at 40 CFR 141.23(k)(1) for standalone and continuous online pH monitoring, respectively, do not address the current pH technologies available for pH monitoring in drinking water utilities. Specifically, the stakeholders requested that a new method address the different types of pH analyzers and require calibration frequency, calibration verification, sampling, and other analytical aspects to assure that the procedure is robust and applicable to the monitoring configurations that exist in drinking water public utilities. EPA Method 150.3 allows the use of bench-top, portable and continuous monitoring pH meters including newer sensor technologies that are designed for the analysis of pH (e.g., solid state ion selective field effect transistors (ISFETs)), provided that the required PO 00000 Frm 00028 Fmt 4700 Sfmt 4700 quality control (QC) acceptance criteria defined in the method can be met. The calibration procedure in the older continuous monitoring EPA Method 150.2 does not distinguish between pH electrodes that can be easily removed from the process stream and electrodes that cannot be easily removed. The new method simplifies the calibration of continuous monitoring pH meters through the use of either direct or indirect (grab sample) calibration techniques. EPA Method 150.3 defines the frequencies for calibration and calibration verifications and the required measurement acceptance criteria. In addition, the method incorporates guidelines to assist operators with potential problems such as the effect of temperature on pH measurement. EPA has determined that EPA Method 150.3 is equally effective for measuring pH, relative to EPA Methods 150.1 and 150.2. The basis for this determination is discussed in Adams (2017a). EPA is therefore approving use of EPA Method 150.3 for standalone and continuous online pH monitoring of drinking water. Available at the National Service Center for Environmental Publications (www.epa.gov/nscep). B. Methods Developed by Voluntary Consensus Standard Bodies (VCSB) 1. Standard Methods for the Examination of Water and Wastewater (Standard Methods). In 2007, the GA method (GA 2004) for determination of radium-226 and radium-228 by gamma spectrometry was approved in the drinking water regulations at 40 CFR 141.25(a). The method had undergone evaluation through the drinking water Alternate Test Procedure (ATP) program and was examined for acceptability through a multi-laboratory validation study. The validation study assessed system background, sensitivity, precision and accuracy for drinking water samples drawn from multiple sources around the United States. Standard Method 7500-Ra E published in the 22nd edition (APHA 2012) and its identical online version, 7500-Ra E–07 (APHA 2007) were developed directly from the GA gamma spectrometry method, and thus entail the same sample collection and handling protocols, sample preparation, detection procedure, and method performance data. EPA has determined that Standard Methods 7500-Ra E and 7500-Ra E–07 are equally effective, relative to the approved GA method. The basis for this determination is discussed in Smith (2017a). EPA is therefore approving Standard Methods 7500-Ra E and 7500- E:\FR\FM\27JYR1.SGM 27JYR1 34863 Federal Register / Vol. 82, No. 143 / Thursday, July 27, 2017 / Rules and Regulations Ra E–07 method for determining radium-226 and radium-228 in drinking water by gamma spectrometry. An additional new online Standard Method 7110 D–17 (APHA 2017) was submitted for evaluation as an alternative to the approved EPA Method 900.0 (USEPA 1980) for the analysis of gross alpha and gross beta activity in drinking water. Standard Method 7110 D–17 involves the simultaneous analysis of gross alpha and gross beta activities by liquid scintillation counting using alpha/beta discrimination. EPA Method 900.0 was promulgated in the drinking water regulations at 40 CFR 141.25(a) as a screening method to determine whether specific radionuclide analyses are required. While technically simple to perform, the accuracy of the results obtained with EPA Method 900.0 can be affected by the radionuclides used for calibration, variability in the drinking water dissolved solids, and the sample geometry. Sample self-absorption occurs when radioactive emissions interact with the solid film of residue, which results from evaporating the drinking water samples to dryness. This significantly limits the level of dissolved solids that can be tolerated. In the liquid scintillation method, self-absorption does not occur as long as solids are dissolved and homogeneously mixed with the scintillation cocktail. The performance of Standard Method 7110 D–17 was evaluated through a multi-laboratory study that assessed the sensitivity, background, accuracy and precision in drinking water matrices containing variable dissolved solids levels. EPA has determined that Standard Method 7110 D–17 is equally as effective for gross alpha and gross beta measurement as the approved EPA Method 900.0. The basis for this determination is discussed in Smith and Wendelken (2017). EPA is therefore approving the use of Standard Method 7110 D–17 for gross alpha and gross beta determination in drinking water. The online version is available at https://www.standardmethods.org. 2. ASTM International. EPA compared the most recent versions of seven ASTM International methods to the earlier versions of those methods that are currently approved in 40 CFR ASTM revised version mstockstill on DSK30JT082PROD with RULES D D D D D D D 2972–15 2972–15 3559–15 3645–15 3859–15 3859–15 6508–15 Approved method B (ASTM 2015a) ............... C (ASTM 2015a) ............... D (ASTM 2015b) ............... B (ASTM 2015c) ............... A (ASTM 2015d) ............... B (ASTM 2015d) ............... (ASTM 2015e) .................. D D D D D D D 2972–03 2972–03 3559–03 3645–03 3859–03 3859–03 6508–00 An additional ASTM Method D 7283– 17 (ASTM 2017) was submitted for evaluation as an alternate test method to the approved EPA Method 900.0 (USEPA 1980) for the analysis of gross alpha and gross beta activity in drinking water. ASTM Method D 7283–17 involves the simultaneous analysis of gross alpha and gross beta activities by liquid scintillation counting using alpha/beta discrimination. EPA Method 900.0 was promulgated in the drinking water regulations at 40 CFR 141.25(a) as a screening method to determine whether specific radionuclide analyses are required. While technically simple to perform, the accuracy of the results obtained with EPA Method 900.0 can be affected by the radionuclides used for calibration, variability in the drinking water dissolved solids, and the sample geometry. Sample self-absorption occurs when radioactive emissions interact with the solid film of residue, which results from evaporating drinking water VerDate Sep<11>2014 17:07 Jul 26, 2017 Jkt 241001 Contaminant B (ASTM 2003a) .............. C (ASTM 2003a) .............. D (ASTM 2003b) .............. B (ASTM 2003c) ............... A (ASTM 2003d) .............. B (ASTM 2003d) .............. (ASTM 2000) .................... Arsenic ................................................. Arsenic ................................................. Lead ..................................................... Beryllium .............................................. Selenium .............................................. Selenium .............................................. Nitrate, Nitrite, Orthophosphate .......... samples to dryness. This significantly limits the level of dissolved solids that can be tolerated. In the liquid scintillation method, self-absorption does not occur as long as solids are dissolved and homogeneously mixed with the scintillation cocktail. The performance of ASTM Method D 7283–17 was evaluated through a multilaboratory study that assessed the sensitivity, background, accuracy and precision in drinking water matrices containing variable dissolved solids levels. EPA has determined that ASTM Method D 7283–17 is equally as effective for gross alpha and gross beta measurement as the approved EPA Method 900.0. The basis for this determination is discussed in Smith and Wendelken (2017). EPA is therefore approving the use of ASTM D 7283–17 for gross alpha and gross beta determination in drinking water. The ASTM methods are available from ASTM International, 100 Barr PO 00000 Frm 00029 Fmt 4700 part 141. The new versions included changes such as: • Additional sample handling and preservation instructions to assure safety of field samplers (D 2972–15 B, C; D 3559–15 D; D 3645–15 B; and D 3859–15 A, B) • Additional quality control (D 2972–15 B, C; D 3559–15 D; D 3645–15 B; D 3859–15 A, B; and D 6508–15) Changes between the earlier approved version and the most recent version of each method are described more fully in Smith (2017b). The additional revisions involve editorial changes (e.g., updated references, definitions, terminology, procedural clarifications, and reorganization of text). The revised methods are the same as the approved versions with respect to sample collection and handling protocols, sample preparation, analytical methodology, and method performance data; thus, EPA finds they are equally effective relative to the approved methods. EPA is thus approving the use of the following ASTM methods for the contaminants and their respective regulations listed in the following table: Sfmt 4700 Regulation 40 40 40 40 40 40 40 CFR CFR CFR CFR CFR CFR CFR 141.23(k)(1). 141.23(k)(1). 141.23(k)(1). 141.23(k)(1). 141.23(k)(1). 141.23(k)(1). 141.23(k)(1). Harbor Drive, West Conshohocken, PA 19428–2959 or https://www.astm.org. C. Methods Developed by Vendors 1. Pathogen Detection Systems, Inc., ‘‘TECTATM EC/TC Medium and the TECTATM Instrument: A Presence/ Absence Method for the Simultaneous Detection of Total Coliforms and Escherichia coli (E. coli) in Drinking Water, March 20, 2017, Version 2.0’’ (Pathogen Detection Systems, Inc., 2017). TectaTM EC/TC is a microbiological method for the simultaneous detection of total coliforms and E. coli in drinking water. This method detects the presence/ absence of total coliforms and E. coli in 100 mL samples of drinking water by enzymatic cleavage of fluorogenic compounds, which then yield a fluorescent response. The TECTATM TC/ EC method uses an automated instrument for incubation and detection of total coliforms and E. coli. Approved drinking water methods for total E:\FR\FM\27JYR1.SGM 27JYR1 mstockstill on DSK30JT082PROD with RULES 34864 Federal Register / Vol. 82, No. 143 / Thursday, July 27, 2017 / Rules and Regulations coliforms are listed at 40 CFR 141.852(a)(5) under the Revisions to the Total Coliform Rule (RTCR). Methods approved for E. coli in drinking water are listed at 40 CFR 141.402(c)(2) under the Ground Water Rule (GWR), and at 40 CFR 141.852(a)(5) under the RTCR. TECTATM EC/TC (‘‘TECTATM EC/TC Medium and the TECTATM Instrument: A Presence/Absence Method for the Simultaneous Detection of Total Coliforms and Escherichia coli (E.coli) in Drinking Water, May 22, 2014, Version 1.0’’ (Pathogen Detection Systems, Inc., 2014)) was approved as being equally effective relative to the approved Standard Method 9221 B for total coliforms under the Total Coliform Rule (TCR) and RTCR, and Standard Method 9221 F for E. coli under the TCR, GWR, and RTCR in the June 19, 2014, expedited methods approval action (USEPA 2014). This action is approving a modified version of this method. For the latest version of this method, modifications were made to the TECTA B16 unit. System mass was reduced by using reconfigured heating blocks; components were simplified; and underutilized features were eliminated. These modifications are described in the docket document ‘‘Summary of Hardware and Software Modifications TECTA B16 Rev 1.0 versus TECTA B16 Rev 2.0 November 12, 2015’’ (Pathogen Detection Systems, Inc., 2015). The modifications made for this method did not include any changes to the detection algorithm. EPA reviewed the changes that were made and determined that the modifications did not affect the performance of the method. Therefore, EPA has determined that the TECTA EC/TC Version 2.0 method is equally as effective as the approved TECTA EC/TC Version 1.0 method. A more detailed description of the basis for this determination is discussed in Sinclair (2017). Accordingly, EPA is approving this revised method ‘‘TECTATM EC/TC Medium and the TECTATM Instrument: A Presence/Absence Method for the Simultaneous Detection of Total Coliforms and Escherichia coli (E. coli) in Drinking Water, March 20, 2017, Version 2.0’’ for the determination of total coliforms and E. coli in drinking water. TECTA EC/TC is an automated and self-contained method, but is subject to the requirements for certified laboratories described in 40 CFR 141.28. A copy of the TECTA EC/TC method is available from Pathogen Detection Systems, Inc., 382 King Street East, Kingston, Ontario, Canada, K7K 2Y2. 2. Thermo Fisher Method 557.1— Determination of Haloacetic Acids in VerDate Sep<11>2014 17:07 Jul 26, 2017 Jkt 241001 Drinking Water using Two-Dimensional Ion Chromatography with Suppressed Conductivity Detection (Thermo Fisher 2017a). Thermo Fisher Method 557.1 is a method for the determination of haloacetic acids (HAAs) in drinking water using a multiple cut, twodimensional ion chromatography (IC) technology that separates the HAAs from matrix interferences in the first dimension, followed by resolution of the HAAs on a small-bore column in the second dimension. Detection and quantitation in the second dimension are accomplished by suppressed conductivity measurement. The sum of five HAAs (monochloroacetic acid, dichloroacetic acid, trichloroacetic acid, monobromoacetic acid, and dibromoacetic acid) is regulated as ‘‘HAA5.’’ The approved methods for HAA5 are listed at 40 CFR 141.131(b)(1). The performance of Thermo Fisher Method 557.1 for each of the five regulated HAAs was compared to the performance criteria established in the approved EPA Methods 552.2 (USEPA 1995) and 552.3, Revision 1.0 (USEPA 2003) for the same compounds. Performance was demonstrated in a variety of drinking water samples derived from both surface and ground water sources. Successful matrix elimination in the first dimension was demonstrated by analysis of high ionic strength matrices containing common anions in drinking water such as chloride, sulfate, bicarbonate and nitrate. Performance results are summarized in the method validation summary report (Thermo Fisher 2017b). EPA has determined that Thermo Fisher Method 557.1 is equally effective for measuring HAA5 relative to the approved EPA Methods 552.2 and 552.3. The basis for this determination is discussed in Smith (2017c). Therefore, EPA is approving Thermo Fisher Method 557.1 for determining HAA5 in drinking water. A copy of the method is available from Thermo Fisher Scientific, 490 Lakeside Dr., Sunnyvale, CA 94085 (Richard.jack@ thermofisher.com). 3. Tintometer Lovibond PTV 1000 Method—Continuous Measurement of Drinking Water Turbidity Using a Lovibond PTV 1000 White Light LED Turbidimeter (Tintometer 2016a). The Tintometer Lovibond PTV 1000 Method uses light emitting diode (LED) nephelometry to continuously measure turbidity in drinking water. The LED emits white light in the visible spectrum between 380 nm and 780 nm, with spectral peak response between 400 nm and 600 nm. The method is based on a comparison of the intensity of light PO 00000 Frm 00030 Fmt 4700 Sfmt 4700 scattered by a drinking water sample under defined conditions with the intensity of light scattered by a standard reference suspension. The PTV 1000 turbidimeter incorporates a sample deaerator to remove air bubbles and uses heated optics to prevent condensation. Approved methods for turbidity are listed at 40 CFR 141.74(a)(1). The performance characteristics of the Lovibond PTV 1000 Method were compared to the performance characteristics of the approved Hach Filter Trak Method 10133 (Hach Company 2000). The validation study report (Tintometer 2016b) summarizes the results obtained from the turbidimeters placed online at three different utilities. Each utility used surface water sources, but different treatment technologies. Sampling was important to ensure representative tracking and response times between the turbidimeters. The sample stream flowed to a manifold that split it into equal streams, with one stream leading to each instrument in the study. EPA has determined that the Lovibond PTV 1000 Method is equally effective relative to Hach Filter Trak Method 10133. The basis for this determination is discussed in Adams (2017b). Therefore, EPA is approving the Lovibond PTV 1000 Method for determining turbidity in drinking water. A copy of the method is available from Tintometer, Inc., 6456 Parkland Drive, Sarasota, FL 34243 (https:// lovibond.com/ptv1000/). 4. Tintometer Lovibond PTV 2000 Method—Continuous Measurement of Drinking Water Turbidity Using a Lovibond PTV 2000 660-nm LED Turbidimeter (Tintometer 2016c). The Tintometer Lovibond PTV 2000 Method uses light emitting diode (LED) nephelometry to continuously measure turbidity in drinking water. The 660 nm LED has a peak emitting wavelength between 650 nm and 670 nm. Use of a 660 nm LED source reduces interferences due to dissolved organics and sample color. The method is based on a comparison of the intensity of light scattered by a drinking water sample under defined conditions with the intensity of light scattered by a standard reference suspension. The PTV 2000 turbidimeter incorporates a sample deaerator to remove air bubbles and uses heated optics to prevent condensation. Approved methods for turbidity are listed at 40 CFR 141.74(a)(1). The performance characteristics of the Lovibond PTV 2000 Method were compared to the performance characteristics of the approved Hach E:\FR\FM\27JYR1.SGM 27JYR1 mstockstill on DSK30JT082PROD with RULES Federal Register / Vol. 82, No. 143 / Thursday, July 27, 2017 / Rules and Regulations Filter Trak Method 10133 (Hach Company 2000). The validation study report (Tintometer 2016b) summarizes the results obtained from the turbidimeters placed online at three different utilities. Each utility used surface water sources, but different treatment technologies. Sampling was important to ensure representative tracking and response times between the turbidimeters. The sample stream flowed to a manifold that split it into equal streams, with one stream leading to each instrument in the study. EPA has determined that the Lovibond PTV 2000 Method is equally effective relative to Hach Filter Trak Method 10133. The basis for this determination is discussed in Adams (2017c). Therefore, EPA is approving the Lovibond PTV 2000 Method for determining turbidity in drinking water. A copy of the method is available from Tintometer, Inc., 6456 Parkland Drive, Sarasota, FL 34243 (https:// lovibond.com/ptv1000/). 5. Tintometer Lovibond PTV 6000 Method—Continuous Measurement of Drinking Water Turbidity Using a Lovibond PTV 6000 Laser Turbidimeter (Tintometer 2016d). The Tintometer Lovibond PTV 6000 Method uses laser nephelometry to continuously measure turbidity in drinking water. The method uses a 685 nm laser diode with a peak emitting center wavelength between 650 nm and 690 nm. The incident laser light is a highly collimated beam of high energy light and its small diameter reduces stray light interference, resulting in improved method sensitivity. The method is based on a comparison of the intensity of light scattered by a drinking water sample under defined conditions with the intensity of light scattered by a standard reference suspension. The PTV 6000 turbidimeter incorporates a sample deaerator to remove air bubbles and uses heated optics to prevent condensation. Approved methods for turbidity are listed at 40 CFR 141.74(a)(1). The performance characteristics of the Lovibond PTV 6000 Method were compared to the performance characteristics of the approved Hach Filter Trak Method 10133 (Hach Company 2000). The validation study report (Tintometer 2016b) summarizes the results obtained from the turbidimeters placed online at three different utilities. Each utility used surface water sources, but different treatment technologies. Sampling was important to ensure representative tracking and response times between the turbidimeters. The sample stream flowed to a manifold that split it into VerDate Sep<11>2014 17:07 Jul 26, 2017 Jkt 241001 equal streams, with one stream leading to each instrument in the study. EPA has determined that the Lovibond PTV 6000 Method is equally effective relative to Hach Filter Trak Method 10133. The basis for this determination is discussed in Adams (2017d). Therefore, EPA is approving the Lovibond PTV 6000 Method for determining turbidity in drinking water. A copy of the method is available from Tintometer, Inc., 6456 Parkland Drive, Sarasota, FL 34243 (https:// lovibond.com/ptv1000/ ). IV. Statutory and Executive Order Reviews As noted in Section II, under the terms of SDWA section 1401(1), this streamlined method approval action is not a rule. Accordingly, the Congressional Review Act, 5 U.S.C. 801 et seq., as added by the Small Business Regulatory Enforcement Fairness Act of 1996, does not apply because this action is not a rule for purposes of 5 U.S.C. 804(3). Similarly, this action is not subject to the Regulatory Flexibility Act because it is not subject to notice and comment requirements under the Administrative Procedure Act or any other statute. In addition, because this approval action is not a rule, but simply makes alternative testing methods available as options for monitoring under SDWA, EPA has concluded that other statutes and executive orders generally applicable to rulemaking do not apply to this approval action. V. References Adams, W. 2017a. Memo to the record describing basis for expedited approval of EPA Method 150.3 for determination of pH. February 2017. (Available at https://www.regulations.gov; docket ID No. EPA–HQ–OW–2017–0284.) Adams, W. 2017b. Memo to the record describing basis for expedited approval of Tintometer method for continuous measurement of drinking water turbidity using a Lovibond PTV 1000 white light LED turbidimeter. January 2017. (Available at https://www.regulations.gov; docket ID No. EPA–HQ–OW–2017– 0284.) Adams, W. 2017c. Memo to the record describing basis for expedited approval of Tintometer method for continuous measurement of drinking water turbidity using a Lovibond PTV 2000 660 nm LED turbidimeter. January 2017. (Available at https://www.regulations.gov; docket ID No. EPA–HQ–OW–2017–0284.) Adams, W. 2017d. Memo to the record describing basis for expedited approval of Tintometer method for continuous measurement of drinking water turbidity using a Lovibond PTV 6000 laser turbidimeter. January 2017. (Available at https://www.regulations.gov; docket ID No. EPA–HQ–OW–2017–0284.) PO 00000 Frm 00031 Fmt 4700 Sfmt 4700 34865 American Public Health Association (APHA). 2007. Standard Method 7500-Ra E–07, Radium—Gamma Spectroscopy Method. Approved by Standard Methods Committee 2007. Standard Methods Online (Available at https:// 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. American Public Health Association (APHA). 2017. Standard Method 7110 D–17. Liquid Scintillation Spectroscopic Method for Gross Alpha-Beta. Approved by Standard Methods Committee 2017. Standard Methods Online (Available at https://www.standardmethods.org) ASTM International. 2000. ASTM D 6508–00. Standard Test Method for Determination of Dissolved Inorganic Anions in Aqueous Matrices Using Capillary Ion Electrophoresis and Chromate Electrolyte. ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428–2959. (Available at https:// www.astm.org.) ASTM International. 2003a. ASTM D 2972– 03 B, C. Standard Test Methods for Arsenic in Water. ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428–2959. (Available at https://www.astm.org.) ASTM International. 2003b. ASTM D 3559– 03 D. Standard Test Methods for Lead in Water. ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428–2959. (Available at https:// www.astm.org.) ASTM International. 2003c. ASTM D 3645– 03 B. Standard Test Methods for Beryllium in Water. ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428–2959. (Available at https://www.astm.org.) ASTM International. 2003d. ASTM D 3859– 03 A, B. Standard Test Methods for Selenium in Water. ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428–2959. (Available at https://www.astm.org.) ASTM International. 2015a. ASTM D 2972– 15 B, C. Standard Test Methods for Arsenic in Water. ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428–2959. (Available at https://www.astm.org.) ASTM International. 2015b. ASTM D 3559– 15 D. Standard Test Methods for Lead in Water. ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428–2959. (Available at https:// www.astm.org.) ASTM International. 2015c. ASTM D 3645– 15 B. Standard Test Methods for Beryllium in Water. ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428–2959. (Available at https://www.astm.org.) ASTM International. 2015d. ASTM D 3859– 15 A, B. Standard Test Methods for Selenium in Water. ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428–2959. (Available at https://www.astm.org.) E:\FR\FM\27JYR1.SGM 27JYR1 mstockstill on DSK30JT082PROD with RULES 34866 Federal Register / Vol. 82, No. 143 / Thursday, July 27, 2017 / Rules and Regulations ASTM International. 2015e. ASTM D 6508– 15. Standard Test Method for Determination of Dissolved Inorganic Anions in Aqueous Matrices Using Capillary Ion Electrophoresis and Chromate Electrolyte. ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428–2959. (Available at https://www.astm.org.) ASTM International. 2017. Standard Test Method for Alpha and Beta Activity in Water by Liquid Scintillation Counting. ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428– 2959. (Available at https://www.astm.org.) GA. 2004. Method for the Determination of Radium-228 and Radium-226 in Drinking Water by Gamma-ray Spectrometry using HPGE or Ge(Li) Detectors. December 2004. Revision 1.2. Environmental Resource Center, Georgia Institute for Technology, 620 Cherry Street, Atlanta, Georgia 30332–0335. (Available at https://www.regulations.gov; docket ID No. EPA–HQ–OW–2017– 0284.) Hach Company. 2000. Hach FilterTrak Method 10133—Determination of Turbidity by Laser Nephelometry. January 2000. Revision 2.0. 5600 Lindbergh Drive, Loveland, Colorado 80539. (Available at https:// www.hach.com.) Pathogen Detection Systems, Inc. 2014. TECTATM EC/TC Medium and the TECTATM Instrument: A Presence/ Absence Method for the Simultaneous Detection of Total Coliforms and Escherichia coli (E. coli) in Drinking Water. May 22, 2014. Version 1.0. Pathogen Detection Systems, Inc. 382 King Street East, Kingston, Ontario, Canada K7K 2Y2. (Available at https:// www.regulations.gov; docket ID No. EPA–HQ–OW–2017–0284.) Pathogen Detection Systems, Inc. 2015. Summary of hardware and software modifications, TECTA B16 Rev. 1.0 versus TECTA B16 Rev. 2.0, November 12, 2015. Pathogen Detection Systems, Inc. 382 King Street East, Kingston, Ontario, Canada K7K 2Y2. (Available at https://www.regulations.gov; docket ID No. EPA–HQ–OW–2017–0284.) Pathogen Detection Systems, Inc. 2017. TECTATM EC/TC Medium and the TECTATM Instrument: A Presence/ Absence Method for the Simultaneous Detection of Total Coliforms and Escherichia coli (E. coli) in Drinking Water. March 20, 2017. Version 2.0. Pathogen Detection Systems, Inc. 382 King Street East, Kingston, Ontario, Canada K7K 2Y2. (Available at https:// www.regulations.gov; docket ID No. EPA–HQ–OW–2017–0284.) Sinclair, J. 2017. Memo to the record describing basis for expedited approval of TECTA EC/TC method, Version 2.0. February 14, 2017. (Available at https:// www.regulations.gov; docket ID No. EPA–HQ–OW–2017–0284.) Smith, G. 2017a. Memo to the record describing basis for expedited approval of Standard Methods 7500–Ra E (22nd ed.) and 7500–Ra E-07. February 28, VerDate Sep<11>2014 17:07 Jul 26, 2017 Jkt 241001 2017. (Available at https:// www.regulations.gov; docket ID No. EPA–HQ–OW–2017–0284.) Smith, G. 2017b. Memo to the record describing basis for expedited approval of updated methods from ASTM International. February 28, 2017. (Available at https://www.regulations.gov; docket ID No. EPA–HQ–OW–2017– 0284.) Smith, G. 2017c. Memo to the record describing basis for expedited approval of Thermo Fisher Method 557.1 for determination of haloacetic acids in drinking water. February 13, 2017. (Available at https://www.regulations.gov; docket ID No. EPA–HQ–OW–2017– 0284.) Smith, G. and Wendelken, S. 2017. Memo to the record describing basis for expedited approval of Standard Method 7110 D–17 and ASTM Method D 7283–17. June 5, 2017. (Available at https:// www.regulations.gov; docket ID No. EPA–HQ–OW–2017–0284.) Thermo Fisher. 2017a. Thermo Fisher Method 557.1: Determination of Haloacetic Acids in Drinking Water using Two-Dimensional Ion Chromatography with Suppressed Conductivity Detection. January 2017. Version 1.0. Thermo Fisher Scientific, 490 Lakeside Drive, Sunnyvale, CA 94085. (Available at https:// www.regulations.gov; docket ID No. EPA–HQ–OW–2017–0284.) Thermo Fisher. 2017b. Validation Summary Report for Thermo Fisher Method 557.1. May 11, 2017. Thermo Fisher Scientific, 490 Lakeside Drive, Sunnyvale, CA 94085. (Available at https:// www.regulations.gov; docket ID No. EPA–HQ–OW–2017–0284.) Tintometer. 2016a. Continuous Measurement of Drinking Water Turbidity Using a Lovibond PTV 1000 White Light LED Turbidimeter—The Lovibond White Light LED Method. December 2016. Revision 1.0. Tintometer, Inc. 6456 Parkland Drive, Sarasota, FL 34243. (Available at https://www.regulations.gov; docket ID No. EPA–HQ–OW–2017– 0284.) Tintometer. 2016b. Alternate Test Procedure (ATP) Validation Study Report for the Measurement of Drinking Water Turbidity up to 10 NTU using the Candidate Lovibond Turbidity Methods, Represented by the PTV 1000, PTV 2000, and PTV 6000 Turbidimeters. December 20, 2016. Tintometer, Inc. 6456 Parkland Drive, Sarasota, FL 34243. (Available at https://www.regulations.gov; docket ID No. EPA–HQ–OW–2017–0284.) Tintometer. 2016c. Continuous Measurement of Drinking Water Turbidity Using a Lovibond PTV 2000 660-nm LED Turbidimeter—The Lovibond 660-nm LED Method. December 2016. Revision 1.0. Tintometer, Inc. 6456 Parkland Drive, Sarasota, FL 34243. (Available at https://www.regulations.gov; docket ID No. EPA–HQ–OW–2017–0284.) Tintometer. 2016d. Continuous Measurement of Drinking Water Turbidity Using a Lovibond PTV 6000 Laser PO 00000 Frm 00032 Fmt 4700 Sfmt 4700 Turbidimeter—The Lovibond 6000 Laser Method. December 2016. Revision 1.0. Tintometer, Inc. 6456 Parkland Drive, Sarasota, FL 34243. (Available at https:// www.regulations.gov; docket ID No. EPA–HQ–OW–2017–0284.) USEPA. 1980. EPA Method 900.0. Gross Alpha and Gross Beta Radioactivity in Drinking Water in ‘‘Prescribed Procedures for Measurement of Radioactivity in Drinking Water,’’ EPA– 600/4–80–032, August 1980. (Available at https://www.nemi.gov; docket ID No. EPA–HQ–OW–2017–0284.) USEPA. 1983a. EPA Method 150.1. pH in ‘‘Methods for Chemical Analysis of Water and Wastes,’’ EPA/600/4–79–020, March 1983. (Available at https:// www.regulations.gov; docket ID No. EPA–HQ–OW–2017–0284.) USEPA. 1983b. EPA Method 150.2. pH, Continuous Monitoring (Electrometric), in ‘‘Methods for Chemical Analysis of Water and Wastes,’’ EPA/600/4–79–020, March 1983. (Available at https:// www.regulations.gov; docket ID No. EPA–HQ–OW–2017–0284.) USEPA. 1995. EPA Method 552.2, Rev. 1.0. ‘‘Determination of Haloacetic Acids and Dalapon in Drinking Water by LiquidLiquid Extraction, Derivatization and Gas Chromatography with Electron Capture Detection,’’ in Methods for the Determination of Organic Compounds in Drinking Water, Supplement III, EPA/ 600/R–95/131, August 1995. (Available at https://www.nemi.gov.) USEPA. 2003. EPA Method 552.3, Determination of Haloacetic Acids and Dalapon in Drinking Water by LiquidLiquid Microextraction, Derivatization and Gas Chromatography with Electron Capture Detection, EPA 815–B–03–002, July 2003. (Available at https:// www.nemi.gov.) USEPA. 2014. Expedited Approval of Alternative Test Procedures for the Analysis of Contaminants Under the Safe Drinking Water Act; Analysis and Sampling Procedures, 79 FR 35081, June 19, 2014. USEPA. 2017. EPA Method 150.3, Determination of pH in Drinking Water, EPA 815–B–17–001, February 2017. (Available at https://www.regulations.gov; docket ID No. EPA–HQ–OW–2017– 0284.) List of Subjects in 40 CFR Part 141 Environmental protection, Chemicals, Indians—lands, Intergovernmental relations, Reporting and recordkeeping requirements, Water supply. Dated: July 5, 2017. Peter Grevatt, Director, Office of Ground Water and Drinking Water. For the reasons stated in the preamble, the Environmental Protection Agency amends 40 CFR part 141 as follows: E:\FR\FM\27JYR1.SGM 27JYR1 Federal Register / Vol. 82, No. 143 / Thursday, July 27, 2017 / Rules and Regulations b. By revising the table entitled ‘‘ALTERNATIVE TESTING METHODS FOR CONTAMINANTS LISTED AT 40 CFR 141.25(a).’’ ■ c. By revising the entry for ‘‘Turbidity’’ in the table entitled ‘‘ALTERNATIVE TESTING METHODS FOR CONTAMINANTS LISTED AT 40 CFR 141.74(a)(1).’’ ■ d. By revising the entry for ‘‘HAA5’’ in the table entitled ‘‘ALTERNATIVE TESTING METHODS FOR CONTAMINANTS LISTED AT 40 CFR 141.131(b)(1).’’ ■ e. By revising the entry for ‘‘E. coli’’ in the table entitled ‘‘ALTERNATIVE TESTING METHODS FOR CONTAMINANTS LISTED AT 40 CFR 141.402(c)(2).’’ ■ PART 141—NATIONAL PRIMARY DRINKING WATER REGULATIONS 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. 2. Appendix A to subpart C of part 141 is amended as follows: ■ a. By revising the entries for ‘‘Arsenic,’’ ‘‘Beryllium,’’ ‘‘Lead,’’ ‘‘Nitrate,’’ ‘‘Nitrite,’’ ‘‘Orthophosphate,’’ ‘‘pH,’’ and ‘‘Selenium’’ in the table entitled ‘‘ALTERNATIVE TESTING METHODS FOR CONTAMINANTS LISTED AT 40 CFR 141.23(k)(1).’’ ■ 34867 f. By revising the entries for ‘‘Total Coliforms’’ and ‘‘Escherichia coli’’ in the table entitled ‘‘ALTERNATE TESTING METHODS FOR CONTAMINANTS LISTED AT 40 CFR 141.852(a)(5).’’ ■ g. By revising footnote 33. ■ h. By adding footnotes 43 through 48. The revisions and additions read as follows: ■ APPENDIX A TO SUBPART C OF PART 141—ALTERNATIVE TESTING METHODS APPROVED FOR ANALYSES UNDER THE SAFE DRINKING WATER ACT * * * * * ALTERNATIVE TESTING METHODS FOR CONTAMINANTS LISTED AT 40 CFR 141.23(k)(1) Contaminant Methodology EPA method SM 21st edition 1 SM 22nd edition 28 * Arsenic ................................ * Atomic Absorption; Furnace * ........................... * 3113 B ..... * 3113 B ..... Hydride Atomic Absorption ........................... 3114 B ..... 3114 B ..... Axially viewed inductively coupled plasma-atomic emission spectrometry (AVICP–AES). 200.5, Revision 4.2.2 * Inductively Coupled Plasma Atomic Absorption; Furnace * ........................... ........................... * 3120 B ..... 3113 B ..... * 3120 B. 3113 B ..... Axially viewed inductively coupled plasma-atomic emission spectrometry (AVICP–AES). 200.5, Revision 4.2.2 * Atomic Absorption; Furnace * ........................... * 3113 B ..... * 3113 B ..... Axially viewed inductively coupled plasma-atomic emission spectrometry (AVICP–AES). 200.5, Revision 4.2.2 * Ion Chromatography .......... Automated Cadmium Reduction. Manual Cadmium Reduction. Ion Selective Electrode ...... * ........................... ........................... ........................... Reduction/Colorimetric ....... ........................... * 4110 B ..... 4500–NO3F. 4500–NO3E. 4500–NO3D. .................. * 4110 B ..... 4500–NO3F. 4500–NO3E. 4500–NO3D. .................. * Colorimetric; Direct ............ * ........................... * .................. Capillary Ion Electrophoresis. Ion Chromatography .......... Automated Cadmium Reduction. Manual Cadmium Reduction. Spectrophotometric ............ ........................... ........................... ........................... * Beryllium ............................. * Lead .................................... * Nitrate ................................. * mstockstill on DSK30JT082PROD with RULES Nitrite .................................. Reduction/Colorimetric ....... VerDate Sep<11>2014 17:07 Jul 26, 2017 Jkt 241001 PO 00000 ........................... ........................... ........................... ........................... Frm 00033 SM online 3 3113 B–04, B–10. 3114 B–09 ASTM 4 * D 2972–08 C, –15 C. D 2972–08 B, –15 B. * Other * * 3113 B–04, B–10. D 3645–08 B, –15 B. * D 3559–08 D, –15 D. * 3113 B–04, B–10. * D 4327–11. * .................. .................. ........................... Systea Easy (1-Reagent) 8 NECi NitrateReductase.40 * .................. .................. * ........................... * Hach TNTplusTM 835/ 836 Method 10206.23 .................. .................. .................. D 6508–15. 4110 B ..... 4500–NO3F. 4500–NO3E. 4500–NO2B. .................. 4110 B ..... 4500–NO3F. 4500–NO3E. 4500–NO2B. .................. .................. D 4327–11. .................. ........................... Fmt 4700 Sfmt 4700 E:\FR\FM\27JYR1.SGM 27JYR1 Systea Easy (1-Reagent) 8 NECi NitrateReductase.40 34868 Federal Register / Vol. 82, No. 143 / Thursday, July 27, 2017 / Rules and Regulations ALTERNATIVE TESTING METHODS FOR CONTAMINANTS LISTED AT 40 CFR 141.23(k)(1)—Continued Methodology EPA method SM 21st edition 1 SM 22nd edition 28 SM online 3 * Capillary Ion Electrophoresis. Ion Chromatography .......... Colorimetric, ascorbic acid, single reagent. Colorimetric, Automated, Ascorbic Acid. * ........................... * .................. * .................. .................. ........................... ........................... 4110 B ..... 4500–P E 4110 B ..... 4500–P E ........................... 4500–P F 4500–P F Contaminant * Orthophosphate .................. * .................. 4500–P E– 99. 4500–P F– 99. * ........................... * .................. * .................. .................. 150.3 48 ............. ........................... 4500–H+ B 3114 B ..... 4500–H+ B 3114 B ..... .................. 3114 B–09 Atomic Absorption; Furnace ........................... 3113 B ..... 3113 B ..... 3113 B–04, B–10. Axially viewed inductively coupled plasma-atomic emission spectrometry (AVICP–AES). pH ....................................... Selenium ............................. * Capillary Ion Electrophoresis. Electrometric ...................... Hydride-Atomic Absorption * * * * Other * D 6508–15. * D 4327–11. ........................... Thermo Fisher Discrete Analyzer.41 200.5, Revision 4.2. 2 * * ASTM 4 * * * * D 6508–15. * D 1293–12. D 3859–08 A, -– 15 A. D 3859–08 B, –15 B. * * * ALTERNATIVE TESTING METHODS FOR CONTAMINANTS LISTED AT 40 CFR 141.25(a) Methodology SM 21st edition 1 SM 22nd edition 28 Evaporation ............................. Liquid Scintillation ................... Coprecipitation ........................ Radon emanation .................... Radiochemical ......................... Gamma Spectrometry ............. Radiochemical ......................... Gamma Spectrometry ............. Radiochemical ......................... ICP–MS ................................... Alpha spectrometry ................. Laser Phosphorimetry ............. Alpha Liquid Scintillation Spectrometry. 7110 B ..................... .................................. 7110 C ..................... 7500-Ra C ............... 7500-Ra B ............... .................................. 7500-Ra D ............... .................................. 7500–U B ................ 3125 ........................ 7500–U C ................ .................................. .................................. 7110 B. .................................. 7110 C. 7500-Ra C ............... 7500-Ra B ............... 7500-Ra E ............... 7500-Ra D. 7500-Ra E ............... 7500–U B. .................................. 7500–U C ................ .................................. D 6239–09. Radiochemical ......................... Gamma Ray Spectrometry ..... Radiochemical ......................... 7500-Cs B ............... 7120 ........................ 7500–I B .................. 7500–I C .................. 7500–I D .................. 7120 ........................ 7500-Sr B ................ 7500-Cs B. 7120 ........................ 7500–I B .................. 7500–I C, 7500–I D. 7120 ........................ 7500-Sr B. 7500-3’’H B .............. 7120 ........................ 7500-Cs B ............... 7500–I B .................. 7500-3 H B ............... 7120 ........................ 7500-Cs B ............... 7500–I B. Contaminant Naturally Occurring: Gross alpha and beta ...... Gross alpha ...................... Radium 226 ...................... Radium 228 ...................... Uranium ............................ Man-Made: Radioactive Cesium ......... Radioactive Iodine ............ Radioactive Strontium 89, 90. Tritium .............................. Gamma Emitters .............. Gamma Ray Spectrometry ..... Radiochemical ......................... Liquid Scintillation ................... Gamma Ray Spectrometry ..... ASTM 4 SM online 3 D 7283–17 ............... 7110 D–17 D 3454–05. D 2460–07. .................................. 7500-Ra E–07 .................................. 7500-Ra E–07 D 5673–05, 10. D 3972–09. D 5174–07. D 3649–06. D 3649–06. D 4785–08. D 4107–08. D 3649–06. D 4785–08. ALTERNATIVE TESTING METHODS FOR CONTAMINANTS LISTED AT 40 CFR 141.74(a)(1) Methodology SM 21st edition 1 SM 22nd edition 28 SM online 3 * Turbidity ................................... mstockstill on DSK30JT082PROD with RULES Organism * * Nephelometric Method ............ Laser Nephelometry (online) ... * 2130 B ..................... .................................. * 2130 B. .................................. * .................................. LED Nephelometry (online) ..... .................................. .................................. .................................. LED Nephelometry (online) ..... .................................. .................................. .................................. LED Nephelometry (portable) .. 360° Nephelometry .................. .................................. .................................. .................................. .................................. .................................. .................................. VerDate Sep<11>2014 17:07 Jul 26, 2017 Jkt 241001 PO 00000 Frm 00034 Fmt 4700 Sfmt 4700 E:\FR\FM\27JYR1.SGM 27JYR1 Other * Mitchell M5271.10 Mitchell M5331, Rev. 1.2.42 Lovibond PTV 6000.46 Mitchell M5331 11 Mitchell M5331, Rev. 1.2.42 Lovibond PTV 2000.45 AMI Turbiwell.15 Lovibond PTV 1000.44 Orion AQ4500.12 Hach Method 10258.39 34869 Federal Register / Vol. 82, No. 143 / Thursday, July 27, 2017 / Rules and Regulations * * * * * ALTERNATIVE TESTING METHODS FOR CONTAMINANTS LISTED AT 40 CFR 141.131(b)(1) Contaminant Methodology EPA method ASTM 4 SM online 3 SM 21st edition 1 * HAA5 .................................. * LLE (diazomethane)/GC/ ECD. Ion Chromatography Electrospray Ionization Tandem Mass Spectrometry (IC–ESI–MS/MS). Two-Dimensional Ion Chromatography (IC) with Suppressed Conductivity Detection. * ........................... * .................. * 6251 B–07 6251 B ..... * 6251 B. .................. .................. .................. ........................... * * * * * * SM 22nd edition 28 Other * 557. 14 ........................... * * * Thermo Fisher 557.1.47 * * * ALTERNATIVE TESTING METHODS FOR CONTAMINANTS LISTED AT 40 CFR 141.402(c)(2) Organism Methodology SM 20th edition 6 SM 21st edition 1 SM 22nd edition 28 SM Online 3 E. coli ................................................. Colilert® .............................................. .................. 9223 B ..... 9223 B ..... Colisure® ............................................ .................. 9223 B ..... 9223 B ..... Colilert-18 ........................................... 9223 B ..... 9223 B ..... 9223 B ..... Readycult® ......................................... Colitag ................................................ Chromocult® ...................................... EC–MUG ............................................ Tecta EC/TC. 33 43 .................. .................. .................. .................. .................. .................. .................. .................. .................. .................. .................. 9221 F ...... 9223 B–97, B– 04. 9223 B–97, B– 04. 9223 B–97, B– 04. ........................... ........................... ........................... 9221 F–06. * * * * * * * * * Other Readycult.® 20 Modified Colitag.TM 13 Chromocult.® 21 * * * ALTERNATIVE TESTING METHODS FOR CONTAMINANTS LISTED AT 40 CFR 141.852(a)(5) Organism Methodology category Method SM 20th, 21st editions 1 6 SM 22nd edition 28 Total Coliforms .............................. Lactose Fermentation Methods .... Standard Total Coliform Fermentation Technique. Colilert® ................... Colisure® ................. Colilert-18 ................ Tecta EC/TC. 33 43 EC–MUG medium ... .................................. 9221 B.1, B.2 .......... 9221 B.1, B.2–06. .................................. .................................. 9223 B ..................... 9223 B ..................... 9223 B ..................... 9223 B ..................... 9223 B–04. 9223 B–04. 9223 B–04. .................................. 9221 F.1 .................. 9221 F.1–06. .................................. .................................. 9223 B ..................... 9223 B ..................... 9223 B ..................... 9223 B ..................... 9223 B–04. 9223 B–04. 9223 B–04. Enzyme Substrate Methods ......... Escherichia coli ............................. * Escherichia coli Procedure (following Lactose Fermentation Methods). Enzyme Substrate Methods ......... * Colilert® ................... Colisure® ................. Colilert-18 ................ Tecta EC/TC. 33 43 * * * * mstockstill on DSK30JT082PROD with RULES 1 Standard SM online 3 * 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 https://www.epa.gov/water-research/epa-drinking-water-research-methods.) 3 Standard Methods Online are available at https://www.standardmethods.org. The year in which each method was approved by the Standard Methods Committee is designated by the last two digits in the method number. The methods listed are the only online versions that may be used. 4 Available from ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428–2959 or https://astm.org. The methods listed are the only alternative versions that may be used. * * * * * * * 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. * * * * * * * 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. * * * * * * * VerDate Sep<11>2014 17:57 Jul 26, 2017 Jkt 241001 PO 00000 Frm 00035 Fmt 4700 Sfmt 4700 E:\FR\FM\27JYR1.SGM 27JYR1 34870 Federal Register / Vol. 82, No. 143 / Thursday, July 27, 2017 / Rules and Regulations 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, https://www.thermo.com. 13 Modified ColitagTM Method. ‘‘Modified ColitagTM Test Method for the Simultaneous Detection of E. coli and other Total Coliforms in Water (ATP D05–0035),’’ August 28, 2009. Available at 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 the National Service Center for Environmental Publications (www.epa.gov/ nscep). Search ‘‘815B09012’’. 15 AMI Turbiwell, ‘‘Continuous Measurement of Turbidity Using a SWAN AMI Turbiwell Turbidimeter,’’ August 2009. Available at https://www.nemi.gov or from Markus Bernasconi, SWAN Analytische Instrumente AG, Studbachstrasse 13, CH–8340 Hinwil, Switzerland. * * * * * * * 20 Readycult® Method, ‘‘Readycult® 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® Method, ‘‘Chromocult® 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. * * * * * * * 23 Hach Company. ‘‘Hach Company TNTplusTM 835/836 Nitrate Method 10206—Spectrophotometric Measurement of Nitrate in Water and Wastewater,’’ January 2011. 5600 Lindbergh Drive, P.O. Box 389, Loveland, Colorado 80539. (Available at https://www.hach.com.) * * * * * * * 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. * * * * * * * 33 Tecta EC/TC. ‘‘TechtaTM EC/TC Medium and TechtaTM Instrument: A Presence/Absence Method for the Simultaneous Detection of Total Coliforms and Escherichia coli (E. coli) in Drinking Water,’’ version 1.0, May 2014. Available from Pathogen Detection Systems, Inc., 382 King Street East, Kingston, Ontario, Canada, K7K 2Y2. * * * * * * * 39 Hach Company. ‘‘Hach Method 10258—Determination of Turbidity by 360° Nephelometry,’’ January 2016. 5600 Lindbergh Drive, P.O. Box 389, Loveland, CO 80539. (Available at https://www.hach.com.) 40 Nitrate Elimination Company Inc. (NECi). ‘‘Method for Nitrate Reductase Nitrate-Nitrogen Analysis of Drinking Water,’’ February 2016. Superior Enzymes Inc., 334 Hecla Street, Lake Linden, Michigan 49945. 41 Thermo Fisher. ‘‘Thermo Fisher Scientific Drinking Water Orthophosphate Method for Thermo Scientific Gallery Discrete Analyzer,’’ February 2016. Revision 5. Thermo Fisher Scientific, Ratastie 2, 01620 Vantaa, Finland. 42 Mitchell Method M5331, Revision 1.2. ‘‘Determination of Turbidity by LED or Laser Nephelometry,’’ February 2016. Available from Leck Mitchell, Ph.D., PE, 656 Independence Valley Dr., Grand Junction, CO 81507. 43 Tecta EC/TC. ‘‘TectaTM EC/TC Medium and the TectaTM Instrument: A Presence/Absence Method for the Simultaneous Detection of Total Coliforms and Escherichia coli (E. coli) in Drinking Water,’’ version 2.0, February 2017. Available from Pathogen Detection Systems, Inc., 382 King Street East, Kingston, Ontario, Canada, K7K 2Y2. 44 Lovibond PTV 1000. ‘‘Continuous Measurement of Drinking Water Turbidity Using a Lovibond PTV 1000 White Light LED Turbidimeter,’’ December 2016. Revision 1.0. Available from Tintometer, Inc., 6456 Parkland Drive, Sarasota, FL 34243. 45 Lovibond PTV 2000. ‘‘Continuous Measurement of Drinking Water Turbidity Using a Lovibond PTV 2000 660–nm LED Turbidimeter,’’ December 2016. Revision 1.0. Available from Tintometer, Inc., 6456 Parkland Drive, Sarasota, FL 34243. 46 Lovibond PTV 6000. ‘‘Continuous Measurement of Drinking Water Turbidity Using a Lovibond PTV 6000 Laser Turbidimeter,’’ December 2016. Revision 1.0. Available from Tintometer, Inc., 6456 Parkland Drive, Sarasota, FL 34243. 47 Thermo Fisher. ‘‘Thermo Fisher Method 557.1: Determination of Haloacetic Acids in Drinking Water using Two-Dimensional Ion Chromatography with Suppressed Conductivity Detection,’’ January 2017. Version 1.0. Available from Thermo Fisher Scientific, 490 Lakeside Dr., Sunnyvale, CA 94085 (Richard.jack@ thermofisher.com). 48 EPA Method 150.3. ‘‘Determination of pH in Drinking Water,’’ February 2017. EPA 815–B–17–001. Available at the National Service Center for Environmental Publications (www.epa.gov/nscep). [FR Doc. 2017–15380 Filed 7–26–17; 8:45 am] Unit I.C. of the SUPPLEMENTARY BILLING CODE 6560–50–P INFORMATION). The docket for this action, identified by docket identification (ID) number EPA–HQ–OPP–2016–0307, is available at https://www.regulations.gov or at the Office of Pesticide Programs Regulatory Public Docket (OPP Docket) in the Environmental Protection Agency Docket Center (EPA/DC), West William Jefferson Clinton Bldg., Rm. 3334, 1301 Constitution Ave. NW., Washington, DC 20460–0001. The 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 OPP Docket is (703) 305–5805. Please review the visitor instructions and additional information about the docket available at https://www.epa.gov/dockets. ADDRESSES: ENVIRONMENTAL PROTECTION AGENCY 40 CFR Part 180 [EPA–HQ–OPP–2016–0307; FRL–9963–22] Fenpyroximate; Pesticide Tolerances Environmental Protection Agency (EPA). ACTION: Final rule. AGENCY: This regulation increases existing tolerances for residues of fenpyroximate in or on dried citrus pulp, citrus oil, and the citrus fruit group 10–10. Nichino America, Inc. requested these tolerance increases under the Federal Food, Drug, and Cosmetic Act (FFDCA). DATES: This regulation is effective July 27, 2017. Objections and requests for hearings must be received on or before September 25, 2017, and must be filed in accordance with the instructions provided in 40 CFR part 178 (see also mstockstill on DSK30JT082PROD with RULES SUMMARY: VerDate Sep<11>2014 17:57 Jul 26, 2017 Jkt 241001 FOR FURTHER INFORMATION CONTACT: Michael Goodis, Registration Division (7505P), Office of Pesticide Programs, Environmental Protection Agency, 1200 Pennsylvania Ave. NW., Washington, DC 20460–0001; main telephone PO 00000 Frm 00036 Fmt 4700 Sfmt 4700 number: (703) 305–7090; email address: RDFRNotices@epa.gov. SUPPLEMENTARY INFORMATION: I. General Information A. Does this action apply to me? You may be potentially affected by this action if you are an agricultural producer, food manufacturer, or pesticide manufacturer. The following list of North American Industrial Classification System (NAICS) codes is not intended to be exhaustive, but rather provides a guide to help readers determine whether this document applies to them. Potentially affected entities may include: • Crop production (NAICS code 111). • Animal production (NAICS code 112). • Food manufacturing (NAICS code 311). • Pesticide manufacturing (NAICS code 32532). B. How can I get electronic access to other related information? You may access a frequently updated electronic version of EPA’s tolerance regulations at 40 CFR part 180 through E:\FR\FM\27JYR1.SGM 27JYR1

Agencies

ENVIRONMENTAL PROTECTION AGENCY

[Federal Register Volume 82, Number 143 (Thursday, July 27, 2017)]
[Rules and Regulations]
[Pages 34861-34870]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2017-15380]

-----------------------------------------------------------------------

ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 141

[EPA-HQ-OW-2017-0284; FRL-9964-78-OW]

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

AGENCY: Environmental Protection Agency (EPA).

ACTION: Final rule.

-----------------------------------------------------------------------

SUMMARY: This action announces the U.S. Environmental Protection
Agency's (EPA's) approval of alternative testing methods for use in
measuring the levels of contaminants in drinking water and determining
compliance with national primary drinking water regulations. The Safe
Drinking Water Act authorizes EPA to approve the use of alternative
testing methods through publication in the Federal Register. EPA is
using this streamlined authority to make 17 additional methods
available for analyzing drinking water samples. This expedited approach
provides public water systems, laboratories, and primacy agencies with
more timely access to new measurement techniques and greater
flexibility in the selection of analytical methods, thereby reducing
monitoring costs while maintaining public health protection.

DATES: This action is effective July 27, 2017.

ADDRESSES: The EPA has established a docket for this action under
Docket ID No. EPA-HQ-OW-2017-0284. All documents in the docket are
listed on the https://www.regulations.gov Web site. Although listed in
the index, some information is not publicly available, e.g.,
confidential business information (CBI) or other information whose
disclosure is restricted by statute. Certain other material, such as
copyrighted material, is not placed on the Internet and will be
publicly available only in hard copy form. Publicly available docket
materials are available electronically through https://www.regulations.gov.

FOR FURTHER INFORMATION CONTACT: The Safe Drinking Water Hotline (800)
426-4791 or Glynda Smith, Technical Support Center, Standards and Risk
Management Division, Office of Ground Water and Drinking Water (MS
140), Environmental Protection Agency, 26 West Martin Luther King
Drive, Cincinnati, OH 45268; telephone number: (513) 569-7652; email
address: 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 the Safe Drinking
Water Act (SDWA) may measure contaminants in water samples. When EPA
sets a monitoring requirement in its national primary drinking water
regulations for a given contaminant, the agency also establishes (in
the regulations) standardized test procedures for analysis of the
contaminant. This action makes alternative testing methods available
for particular drinking water contaminants beyond the testing methods
currently established in the regulations. EPA is providing public water
systems, required to test water samples, with a choice of using either
a test procedure already established in the existing regulations or an
alternative testing method that has been approved in this action or in
prior expedited approval actions. Categories and entities that may
ultimately be affected by this action include:

----------------------------------------------------------------------------------------------------------------
Category Examples of potentially regulated entities NAICS \1\
----------------------------------------------------------------------------------------------------------------
State, local, & tribal governments............ State, local and tribal governments that analyze 924110
water samples on behalf of public water systems
required to conduct such analysis; state, local
and tribal governments that directly operate
community and non-transient non-community water
systems required to monitor.
Industry...................................... Private operators of 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 intended to be exhaustive, but rather provides a
guide for readers regarding entities likely to be interested in this
action. This table lists the types of entities that EPA is now aware
could potentially be affected by

[[Page 34862]]

this action. Other types of entities not listed in the table could also
have some interest. To determine whether your facility is affected by
this action, you should carefully examine the applicability language in
the Code of Federal Regulations (CFR) at 40 CFR 141.2 (definition of a
public water system). If you have questions regarding the applicability
of this action to a particular entity, consult the person listed in the
preceding FOR FURTHER INFORMATION CONTACT section.

Abbreviations and Acronyms Used In This Action

APHA: American Public Health Association
ATP: Alternate Test Procedure
CBI: Confidential Business Information
CFR: Code of Federal Regulations
EPA: United States Environmental Protection Agency
GWR: Ground Water Rule
HAA: Haloacetic Acid
HAA5: Haloacetic Acids (five) (sum of monochloroacetic acid,
dichloroacetic acid, trichloroacetic acid, monobromoacetic acid and
dibromoacetic acid)
IC: Ion Chromatography
ISFETs: Ion Selective Field Effect Transistors
LED: Light Emitting Diode
NAICS: North American Industry Classification System
QC: Quality Control
RTCR: Revisions to the Total Coliform Rule
SDWA: The Safe Drinking Water Act
SM: Standard Method
TCR: Total Coliform Rule
VCSB: Voluntary Consensus Standard Bodies

II. Background

A. What is the purpose of this action?

In this action, EPA is approving 17 analytical methods for
determining contaminant concentrations in drinking water samples
collected under SDWA. Regulated parties required to sample and monitor
may use either the testing methods already established in existing
regulations or the alternative testing methods being approved in this
action or in prior expedited approval actions. The new methods are
listed along with other methods similarly approved through previous
expedited actions in 40 CFR part 141, appendix A to subpart C and on
EPA's drinking water methods Web site at https://www.epa.gov/dwanalyticalmethods.

B. What is the basis for this action?

When EPA determines that an alternative analytical method is
``equally effective'' (i.e., as effective as a method that has already
been promulgated in the regulations), SDWA allows EPA to approve the
use of the alternative testing method through publication in the
Federal Register (see section 1401(1) of SDWA). EPA is using this
streamlined approval authority to make 17 additional methods available
for determining contaminant concentrations in drinking water samples
collected under SDWA. EPA has determined that, for each contaminant or
group of contaminants listed in Section III, the additional testing
methods being approved in this action are as effective as one or more
of the testing methods already approved in the regulations for those
contaminants. Section 1401(1) of SDWA states that the newly approved
methods ``shall be treated as an alternative for public water systems
to the quality control and testing procedures listed in the
regulation.'' Accordingly, this action makes these additional 17
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 17 methods that are equally effective relative to
methods previously promulgated in the regulations. By means of this
action, these 17 methods are added to appendix A to subpart C of 40 CFR
part 141.

A. Methods Developed by EPA

1. EPA Method 150.3, Determination of pH in Drinking Water (USEPA
2017). EPA Method 150.3 was developed in response to comments from
state regulators and utility operators that EPA Methods 150.1 (USEPA
1983a) and 150.2 (USEPA 1983b), currently approved at 40 CFR
141.23(k)(1) for standalone and continuous online pH monitoring,
respectively, do not address the current pH technologies available for
pH monitoring in drinking water utilities. Specifically, the
stakeholders requested that a new method address the different types of
pH analyzers and require calibration frequency, calibration
verification, sampling, and other analytical aspects to assure that the
procedure is robust and applicable to the monitoring configurations
that exist in drinking water public utilities.
EPA Method 150.3 allows the use of bench-top, portable and
continuous monitoring pH meters including newer sensor technologies
that are designed for the analysis of pH (e.g., solid state ion
selective field effect transistors (ISFETs)), provided that the
required quality control (QC) acceptance criteria defined in the method
can be met. The calibration procedure in the older continuous
monitoring EPA Method 150.2 does not distinguish between pH electrodes
that can be easily removed from the process stream and electrodes that
cannot be easily removed. The new method simplifies the calibration of
continuous monitoring pH meters through the use of either direct or
indirect (grab sample) calibration techniques. EPA Method 150.3 defines
the frequencies for calibration and calibration verifications and the
required measurement acceptance criteria. In addition, the method
incorporates guidelines to assist operators with potential problems
such as the effect of temperature on pH measurement.
EPA has determined that EPA Method 150.3 is equally effective for
measuring pH, relative to EPA Methods 150.1 and 150.2. The basis for
this determination is discussed in Adams (2017a). EPA is therefore
approving use of EPA Method 150.3 for standalone and continuous online
pH monitoring of drinking water. Available at the National Service
Center for Environmental Publications (www.epa.gov/nscep).

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

1. Standard Methods for the Examination of Water and Wastewater
(Standard Methods). In 2007, the GA method (GA 2004) for determination
of radium-226 and radium-228 by gamma spectrometry was approved in the
drinking water regulations at 40 CFR 141.25(a). The method had
undergone evaluation through the drinking water Alternate Test
Procedure (ATP) program and was examined for acceptability through a
multi-laboratory validation study. The validation study assessed system
background, sensitivity, precision and accuracy for drinking water
samples drawn from multiple sources around the United States. Standard
Method 7500-Ra E published in the 22nd edition (APHA 2012) and its
identical online version, 7500-Ra E-07 (APHA 2007) were developed
directly from the GA gamma spectrometry method, and thus entail the
same sample collection and handling protocols, sample preparation,
detection procedure, and method performance data.
EPA has determined that Standard Methods 7500-Ra E and 7500-Ra E-07
are equally effective, relative to the approved GA method. The basis
for this determination is discussed in Smith (2017a). EPA is therefore
approving Standard Methods 7500-Ra E and 7500-

[[Page 34863]]

Ra E-07 method for determining radium-226 and radium-228 in drinking
water by gamma spectrometry.
An additional new online Standard Method 7110 D-17 (APHA 2017) was
submitted for evaluation as an alternative to the approved EPA Method
900.0 (USEPA 1980) for the analysis of gross alpha and gross beta
activity in drinking water. Standard Method 7110 D-17 involves the
simultaneous analysis of gross alpha and gross beta activities by
liquid scintillation counting using alpha/beta discrimination.
EPA Method 900.0 was promulgated in the drinking water regulations
at 40 CFR 141.25(a) as a screening method to determine whether specific
radionuclide analyses are required. While technically simple to
perform, the accuracy of the results obtained with EPA Method 900.0 can
be affected by the radionuclides used for calibration, variability in
the drinking water dissolved solids, and the sample geometry. Sample
self-absorption occurs when radioactive emissions interact with the
solid film of residue, which results from evaporating the drinking
water samples to dryness. This significantly limits the level of
dissolved solids that can be tolerated.
In the liquid scintillation method, self-absorption does not occur
as long as solids are dissolved and homogeneously mixed with the
scintillation cocktail. The performance of Standard Method 7110 D-17
was evaluated through a multi-laboratory study that assessed the
sensitivity, background, accuracy and precision in drinking water
matrices containing variable dissolved solids levels. EPA has
determined that Standard Method 7110 D-17 is equally as effective for
gross alpha and gross beta measurement as the approved EPA Method
900.0. The basis for this determination is discussed in Smith and
Wendelken (2017). EPA is therefore approving the use of Standard Method
7110 D-17 for gross alpha and gross beta determination in drinking
water.
The online version is available at https://www.standardmethods.org.
2. ASTM International. EPA compared the most recent versions of
seven ASTM International methods to the earlier versions of those
methods that are currently approved in 40 CFR part 141. The new
versions included changes such as:

Additional sample handling and preservation instructions to
assure safety of field samplers (D 2972-15 B, C; D 3559-15 D; D 3645-15
B; and D 3859-15 A, B)
Additional quality control (D 2972-15 B, C; D 3559-15 D; D
3645-15 B; D 3859-15 A, B; and D 6508-15)

Changes between the earlier approved version and the most recent
version of each method are described more fully in Smith (2017b). The
additional revisions involve editorial changes (e.g., updated
references, definitions, terminology, procedural clarifications, and
reorganization of text). The revised methods are the same as the
approved versions with respect to sample collection and handling
protocols, sample preparation, analytical methodology, and method
performance data; thus, EPA finds they are equally effective relative
to the approved methods.
EPA is thus approving the use of the following ASTM methods for the
contaminants and their respective regulations listed in the following
table:

----------------------------------------------------------------------------------------------------------------
ASTM revised version Approved method Contaminant Regulation
----------------------------------------------------------------------------------------------------------------
D 2972-15 B (ASTM 2015a).......... D 2972-03 B (ASTM Arsenic............. 40 CFR 141.23(k)(1).
2003a).
D 2972-15 C (ASTM 2015a).......... D 2972-03 C (ASTM Arsenic............. 40 CFR 141.23(k)(1).
2003a).
D 3559-15 D (ASTM 2015b).......... D 3559-03 D (ASTM Lead................ 40 CFR 141.23(k)(1).
2003b).
D 3645-15 B (ASTM 2015c).......... D 3645-03 B (ASTM Beryllium........... 40 CFR 141.23(k)(1).
2003c).
D 3859-15 A (ASTM 2015d).......... D 3859-03 A (ASTM Selenium............ 40 CFR 141.23(k)(1).
2003d).
D 3859-15 B (ASTM 2015d).......... D 3859-03 B (ASTM Selenium............ 40 CFR 141.23(k)(1).
2003d).
D 6508-15 (ASTM 2015e)............ D 6508-00 (ASTM 2000) Nitrate, Nitrite, 40 CFR 141.23(k)(1).
Orthophosphate.
----------------------------------------------------------------------------------------------------------------

An additional ASTM Method D 7283-17 (ASTM 2017) was submitted for
evaluation as an alternate test method to the approved EPA Method 900.0
(USEPA 1980) for the analysis of gross alpha and gross beta activity in
drinking water. ASTM Method D 7283-17 involves the simultaneous
analysis of gross alpha and gross beta activities by liquid
scintillation counting using alpha/beta discrimination.
EPA Method 900.0 was promulgated in the drinking water regulations
at 40 CFR 141.25(a) as a screening method to determine whether specific
radionuclide analyses are required. While technically simple to
perform, the accuracy of the results obtained with EPA Method 900.0 can
be affected by the radionuclides used for calibration, variability in
the drinking water dissolved solids, and the sample geometry. Sample
self-absorption occurs when radioactive emissions interact with the
solid film of residue, which results from evaporating drinking water
samples to dryness. This significantly limits the level of dissolved
solids that can be tolerated.
In the liquid scintillation method, self-absorption does not occur
as long as solids are dissolved and homogeneously mixed with the
scintillation cocktail. The performance of ASTM Method D 7283-17 was
evaluated through a multi-laboratory study that assessed the
sensitivity, background, accuracy and precision in drinking water
matrices containing variable dissolved solids levels. EPA has
determined that ASTM Method D 7283-17 is equally as effective for gross
alpha and gross beta measurement as the approved EPA Method 900.0. The
basis for this determination is discussed in Smith and Wendelken
(2017). EPA is therefore approving the use of ASTM D 7283-17 for gross
alpha and gross beta determination in drinking water.
The ASTM methods are available from ASTM International, 100 Barr
Harbor Drive, West Conshohocken, PA 19428-2959 or https://www.astm.org.

C. Methods Developed by Vendors

1. Pathogen Detection Systems, Inc., ``TECTA^TM EC/TC
Medium and the TECTA^TM Instrument: A Presence/Absence Method
for the Simultaneous Detection of Total Coliforms and Escherichia coli
(E. coli) in Drinking Water, March 20, 2017, Version 2.0'' (Pathogen
Detection Systems, Inc., 2017). Tecta^TM EC/TC is a
microbiological method for the simultaneous detection of total
coliforms and E. coli in drinking water. This method detects the
presence/absence of total coliforms and E. coli in 100 mL samples of
drinking water by enzymatic cleavage of fluorogenic compounds, which
then yield a fluorescent response. The TECTA^TM TC/EC method
uses an automated instrument for incubation and detection of total
coliforms and E. coli. Approved drinking water methods for total

[[Page 34864]]

coliforms are listed at 40 CFR 141.852(a)(5) under the Revisions to the
Total Coliform Rule (RTCR). Methods approved for E. coli in drinking
water are listed at 40 CFR 141.402(c)(2) under the Ground Water Rule
(GWR), and at 40 CFR 141.852(a)(5) under the RTCR. TECTA^TM
EC/TC (``TECTA^TM EC/TC Medium and the TECTA^TM
Instrument: A Presence/Absence Method for the Simultaneous Detection of
Total Coliforms and Escherichia coli (E.coli) in Drinking Water, May
22, 2014, Version 1.0'' (Pathogen Detection Systems, Inc., 2014)) was
approved as being equally effective relative to the approved Standard
Method 9221 B for total coliforms under the Total Coliform Rule (TCR)
and RTCR, and Standard Method 9221 F for E. coli under the TCR, GWR,
and RTCR in the June 19, 2014, expedited methods approval action (USEPA
2014). This action is approving a modified version of this method. For
the latest version of this method, modifications were made to the TECTA
B16 unit. System mass was reduced by using reconfigured heating blocks;
components were simplified; and underutilized features were eliminated.
These modifications are described in the docket document ``Summary of
Hardware and Software Modifications TECTA B16 Rev 1.0 versus TECTA B16
Rev 2.0 November 12, 2015'' (Pathogen Detection Systems, Inc., 2015).
The modifications made for this method did not include any changes to
the detection algorithm. EPA reviewed the changes that were made and
determined that the modifications did not affect the performance of the
method. Therefore, EPA has determined that the TECTA EC/TC Version 2.0
method is equally as effective as the approved TECTA EC/TC Version 1.0
method. A more detailed description of the basis for this determination
is discussed in Sinclair (2017). Accordingly, EPA is approving this
revised method ``TECTA^TM EC/TC Medium and the
TECTA^TM Instrument: A Presence/Absence Method for the
Simultaneous Detection of Total Coliforms and Escherichia coli (E.
coli) in Drinking Water, March 20, 2017, Version 2.0'' for the
determination of total coliforms and E. coli in drinking water. TECTA
EC/TC is an automated and self-contained method, but is subject to the
requirements for certified laboratories described in 40 CFR 141.28. A
copy of the TECTA EC/TC method is available from Pathogen Detection
Systems, Inc., 382 King Street East, Kingston, Ontario, Canada, K7K
2Y2.
2. Thermo Fisher Method 557.1--Determination of Haloacetic Acids in
Drinking Water using Two-Dimensional Ion Chromatography with Suppressed
Conductivity Detection (Thermo Fisher 2017a). Thermo Fisher Method
557.1 is a method for the determination of haloacetic acids (HAAs) in
drinking water using a multiple cut, two-dimensional ion chromatography
(IC) technology that separates the HAAs from matrix interferences in
the first dimension, followed by resolution of the HAAs on a small-bore
column in the second dimension. Detection and quantitation in the
second dimension are accomplished by suppressed conductivity
measurement.
The sum of five HAAs (monochloroacetic acid, dichloroacetic acid,
trichloroacetic acid, monobromoacetic acid, and dibromoacetic acid) is
regulated as ``HAA5.'' The approved methods for HAA5 are listed at 40
CFR 141.131(b)(1). The performance of Thermo Fisher Method 557.1 for
each of the five regulated HAAs was compared to the performance
criteria established in the approved EPA Methods 552.2 (USEPA 1995) and
552.3, Revision 1.0 (USEPA 2003) for the same compounds. Performance
was demonstrated in a variety of drinking water samples derived from
both surface and ground water sources. Successful matrix elimination in
the first dimension was demonstrated by analysis of high ionic strength
matrices containing common anions in drinking water such as chloride,
sulfate, bicarbonate and nitrate. Performance results are summarized in
the method validation summary report (Thermo Fisher 2017b). EPA has
determined that Thermo Fisher Method 557.1 is equally effective for
measuring HAA5 relative to the approved EPA Methods 552.2 and 552.3.
The basis for this determination is discussed in Smith (2017c).
Therefore, EPA is approving Thermo Fisher Method 557.1 for determining
HAA5 in drinking water. A copy of the method is available from Thermo
Fisher Scientific, 490 Lakeside Dr., Sunnyvale, CA 94085
(Richard.jack@thermofisher.com).
3. Tintometer Lovibond PTV 1000 Method--Continuous Measurement of
Drinking Water Turbidity Using a Lovibond PTV 1000 White Light LED
Turbidimeter (Tintometer 2016a). The Tintometer Lovibond PTV 1000
Method uses light emitting diode (LED) nephelometry to continuously
measure turbidity in drinking water. The LED emits white light in the
visible spectrum between 380 nm and 780 nm, with spectral peak response
between 400 nm and 600 nm. The method is based on a comparison of the
intensity of light scattered by a drinking water sample under defined
conditions with the intensity of light scattered by a standard
reference suspension. The PTV 1000 turbidimeter incorporates a sample
deaerator to remove air bubbles and uses heated optics to prevent
condensation.
Approved methods for turbidity are listed at 40 CFR 141.74(a)(1).
The performance characteristics of the Lovibond PTV 1000 Method were
compared to the performance characteristics of the approved Hach Filter
Trak Method 10133 (Hach Company 2000). The validation study report
(Tintometer 2016b) summarizes the results obtained from the
turbidimeters placed online at three different utilities. Each utility
used surface water sources, but different treatment technologies.
Sampling was important to ensure representative tracking and response
times between the turbidimeters. The sample stream flowed to a manifold
that split it into equal streams, with one stream leading to each
instrument in the study.
EPA has determined that the Lovibond PTV 1000 Method is equally
effective relative to Hach Filter Trak Method 10133. The basis for this
determination is discussed in Adams (2017b). Therefore, EPA is
approving the Lovibond PTV 1000 Method for determining turbidity in
drinking water. A copy of the method is available from Tintometer,
Inc., 6456 Parkland Drive, Sarasota, FL 34243 (https://lovibond.com/ptv1000/).
4. Tintometer Lovibond PTV 2000 Method--Continuous Measurement of
Drinking Water Turbidity Using a Lovibond PTV 2000 660-nm LED
Turbidimeter (Tintometer 2016c). The Tintometer Lovibond PTV 2000
Method uses light emitting diode (LED) nephelometry to continuously
measure turbidity in drinking water. The 660 nm LED has a peak emitting
wavelength between 650 nm and 670 nm. Use of a 660 nm LED source
reduces interferences due to dissolved organics and sample color. The
method is based on a comparison of the intensity of light scattered by
a drinking water sample under defined conditions with the intensity of
light scattered by a standard reference suspension. The PTV 2000
turbidimeter incorporates a sample deaerator to remove air bubbles and
uses heated optics to prevent condensation.
Approved methods for turbidity are listed at 40 CFR 141.74(a)(1).
The performance characteristics of the Lovibond PTV 2000 Method were
compared to the performance characteristics of the approved Hach

[[Page 34865]]

Filter Trak Method 10133 (Hach Company 2000). The validation study
report (Tintometer 2016b) summarizes the results obtained from the
turbidimeters placed online at three different utilities. Each utility
used surface water sources, but different treatment technologies.
Sampling was important to ensure representative tracking and response
times between the turbidimeters. The sample stream flowed to a manifold
that split it into equal streams, with one stream leading to each
instrument in the study.
EPA has determined that the Lovibond PTV 2000 Method is equally
effective relative to Hach Filter Trak Method 10133. The basis for this
determination is discussed in Adams (2017c). Therefore, EPA is
approving the Lovibond PTV 2000 Method for determining turbidity in
drinking water. A copy of the method is available from Tintometer,
Inc., 6456 Parkland Drive, Sarasota, FL 34243 (https://lovibond.com/ptv1000/).
5. Tintometer Lovibond PTV 6000 Method--Continuous Measurement of
Drinking Water Turbidity Using a Lovibond PTV 6000 Laser Turbidimeter
(Tintometer 2016d). The Tintometer Lovibond PTV 6000 Method uses laser
nephelometry to continuously measure turbidity in drinking water. The
method uses a 685 nm laser diode with a peak emitting center wavelength
between 650 nm and 690 nm. The incident laser light is a highly
collimated beam of high energy light and its small diameter reduces
stray light interference, resulting in improved method sensitivity. The
method is based on a comparison of the intensity of light scattered by
a drinking water sample under defined conditions with the intensity of
light scattered by a standard reference suspension. The PTV 6000
turbidimeter incorporates a sample deaerator to remove air bubbles and
uses heated optics to prevent condensation.
Approved methods for turbidity are listed at 40 CFR 141.74(a)(1).
The performance characteristics of the Lovibond PTV 6000 Method were
compared to the performance characteristics of the approved Hach Filter
Trak Method 10133 (Hach Company 2000). The validation study report
(Tintometer 2016b) summarizes the results obtained from the
turbidimeters placed online at three different utilities. Each utility
used surface water sources, but different treatment technologies.
Sampling was important to ensure representative tracking and response
times between the turbidimeters. The sample stream flowed to a manifold
that split it into equal streams, with one stream leading to each
instrument in the study.
EPA has determined that the Lovibond PTV 6000 Method is equally
effective relative to Hach Filter Trak Method 10133. The basis for this
determination is discussed in Adams (2017d). Therefore, EPA is
approving the Lovibond PTV 6000 Method for determining turbidity in
drinking water. A copy of the method is available from Tintometer,
Inc., 6456 Parkland Drive, Sarasota, FL 34243 (https://lovibond.com/ptv1000/ ).

IV. Statutory and Executive Order Reviews

As noted in Section II, under the terms of SDWA section 1401(1),
this streamlined method approval action is not a rule. Accordingly, the
Congressional Review Act, 5 U.S.C. 801 et seq., as added by the Small
Business Regulatory Enforcement Fairness Act of 1996, does not apply
because this action is not a rule for purposes of 5 U.S.C. 804(3).
Similarly, this action is not subject to the Regulatory Flexibility Act
because it is not subject to notice and comment requirements under the
Administrative Procedure Act or any other statute. In addition, because
this approval action is not a rule, but simply makes alternative
testing methods available as options for monitoring under SDWA, EPA has
concluded that other statutes and executive orders generally applicable
to rulemaking do not apply to this approval action.

V. References

Adams, W. 2017a. Memo to the record describing basis for expedited
approval of EPA Method 150.3 for determination of pH. February 2017.
(Available at https://www.regulations.gov; docket ID No. EPA-HQ-OW-
2017-0284.)
Adams, W. 2017b. Memo to the record describing basis for expedited
approval of Tintometer method for continuous measurement of drinking
water turbidity using a Lovibond PTV 1000 white light LED
turbidimeter. January 2017. (Available at https://www.regulations.gov; docket ID No. EPA-HQ-OW-2017-0284.)
Adams, W. 2017c. Memo to the record describing basis for expedited
approval of Tintometer method for continuous measurement of drinking
water turbidity using a Lovibond PTV 2000 660 nm LED turbidimeter.
January 2017. (Available at https://www.regulations.gov; docket ID
No. EPA-HQ-OW-2017-0284.)
Adams, W. 2017d. Memo to the record describing basis for expedited
approval of Tintometer method for continuous measurement of drinking
water turbidity using a Lovibond PTV 6000 laser turbidimeter.
January 2017. (Available at https://www.regulations.gov; docket ID
No. EPA-HQ-OW-2017-0284.)
American Public Health Association (APHA). 2007. Standard Method
7500-Ra E-07, Radium--Gamma Spectroscopy Method. Approved by
Standard Methods Committee 2007. Standard Methods Online (Available
at https://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.
American Public Health Association (APHA). 2017. Standard Method
7110 D-17. Liquid Scintillation Spectroscopic Method for Gross
Alpha-Beta. Approved by Standard Methods Committee 2017. Standard
Methods Online (Available at https://www.standardmethods.org)
ASTM International. 2000. ASTM D 6508-00. Standard Test Method for
Determination of Dissolved Inorganic Anions in Aqueous Matrices
Using Capillary Ion Electrophoresis and Chromate Electrolyte. ASTM
International, 100 Barr Harbor Drive, West Conshohocken, PA 19428-
2959. (Available at https://www.astm.org.)
ASTM International. 2003a. ASTM D 2972-03 B, C. Standard Test
Methods for Arsenic in Water. ASTM International, 100 Barr Harbor
Drive, West Conshohocken, PA 19428-2959. (Available at https://www.astm.org.)
ASTM International. 2003b. ASTM D 3559-03 D. Standard Test Methods
for Lead in Water. ASTM International, 100 Barr Harbor Drive, West
Conshohocken, PA 19428-2959. (Available at https://www.astm.org.)
ASTM International. 2003c. ASTM D 3645-03 B. Standard Test Methods
for Beryllium in Water. ASTM International, 100 Barr Harbor Drive,
West Conshohocken, PA 19428-2959. (Available at https://www.astm.org.)
ASTM International. 2003d. ASTM D 3859-03 A, B. Standard Test
Methods for Selenium in Water. ASTM International, 100 Barr Harbor
Drive, West Conshohocken, PA 19428-2959. (Available at https://www.astm.org.)
ASTM International. 2015a. ASTM D 2972-15 B, C. Standard Test
Methods for Arsenic in Water. ASTM International, 100 Barr Harbor
Drive, West Conshohocken, PA 19428-2959. (Available at https://www.astm.org.)
ASTM International. 2015b. ASTM D 3559-15 D. Standard Test Methods
for Lead in Water. ASTM International, 100 Barr Harbor Drive, West
Conshohocken, PA 19428-2959. (Available at https://www.astm.org.)
ASTM International. 2015c. ASTM D 3645-15 B. Standard Test Methods
for Beryllium in Water. ASTM International, 100 Barr Harbor Drive,
West Conshohocken, PA 19428-2959. (Available at https://www.astm.org.)
ASTM International. 2015d. ASTM D 3859-15 A, B. Standard Test
Methods for Selenium in Water. ASTM International, 100 Barr Harbor
Drive, West Conshohocken, PA 19428-2959. (Available at https://www.astm.org.)

[[Page 34866]]

ASTM International. 2015e. ASTM D 6508-15. Standard Test Method for
Determination of Dissolved Inorganic Anions in Aqueous Matrices
Using Capillary Ion Electrophoresis and Chromate Electrolyte. ASTM
International, 100 Barr Harbor Drive, West Conshohocken, PA 19428-
2959. (Available at https://www.astm.org.)
ASTM International. 2017. Standard Test Method for Alpha and Beta
Activity in Water by Liquid Scintillation Counting. ASTM
International, 100 Barr Harbor Drive, West Conshohocken, PA 19428-
2959. (Available at https://www.astm.org.)
GA. 2004. Method for the Determination of Radium-228 and Radium-226
in Drinking Water by Gamma-ray Spectrometry using HPGE or Ge(Li)
Detectors. December 2004. Revision 1.2. Environmental Resource
Center, Georgia Institute for Technology, 620 Cherry Street,
Atlanta, Georgia 30332-0335. (Available at https://www.regulations.gov; docket ID No. EPA-HQ-OW-2017-0284.)
Hach Company. 2000. Hach FilterTrak Method 10133--Determination of
Turbidity by Laser Nephelometry. January 2000. Revision 2.0. 5600
Lindbergh Drive, Loveland, Colorado 80539. (Available at https://www.hach.com.)
Pathogen Detection Systems, Inc. 2014. TECTA^TM EC/TC
Medium and the TECTA^TM Instrument: A Presence/Absence
Method for the Simultaneous Detection of Total Coliforms and
Escherichia coli (E. coli) in Drinking Water. May 22, 2014. Version
1.0. Pathogen Detection Systems, Inc. 382 King Street East,
Kingston, Ontario, Canada K7K 2Y2. (Available at https://www.regulations.gov; docket ID No. EPA-HQ-OW-2017-0284.)
Pathogen Detection Systems, Inc. 2015. Summary of hardware and
software modifications, TECTA B16 Rev. 1.0 versus TECTA B16 Rev.
2.0, November 12, 2015. Pathogen Detection Systems, Inc. 382 King
Street East, Kingston, Ontario, Canada K7K 2Y2. (Available at https://www.regulations.gov; docket ID No. EPA-HQ-OW-2017-0284.)
Pathogen Detection Systems, Inc. 2017. TECTA^TM EC/TC
Medium and the TECTA^TM Instrument: A Presence/Absence
Method for the Simultaneous Detection of Total Coliforms and
Escherichia coli (E. coli) in Drinking Water. March 20, 2017.
Version 2.0. Pathogen Detection Systems, Inc. 382 King Street East,
Kingston, Ontario, Canada K7K 2Y2. (Available at https://www.regulations.gov; docket ID No. EPA-HQ-OW-2017-0284.)
Sinclair, J. 2017. Memo to the record describing basis for expedited
approval of TECTA EC/TC method, Version 2.0. February 14, 2017.
(Available at https://www.regulations.gov; docket ID No. EPA-HQ-OW-
2017-0284.)
Smith, G. 2017a. Memo to the record describing basis for expedited
approval of Standard Methods 7500-Ra E (22nd ed.) and 7500-Ra E-07.
February 28, 2017. (Available at https://www.regulations.gov; docket
ID No. EPA-HQ-OW-2017-0284.)
Smith, G. 2017b. Memo to the record describing basis for expedited
approval of updated methods from ASTM International. February 28,
2017. (Available at https://www.regulations.gov; docket ID No. EPA-
HQ-OW-2017-0284.)
Smith, G. 2017c. Memo to the record describing basis for expedited
approval of Thermo Fisher Method 557.1 for determination of
haloacetic acids in drinking water. February 13, 2017. (Available at
https://www.regulations.gov; docket ID No. EPA-HQ-OW-2017-0284.)
Smith, G. and Wendelken, S. 2017. Memo to the record describing
basis for expedited approval of Standard Method 7110 D-17 and ASTM
Method D 7283-17. June 5, 2017. (Available at https://www.regulations.gov; docket ID No. EPA-HQ-OW-2017-0284.)
Thermo Fisher. 2017a. Thermo Fisher Method 557.1: Determination of
Haloacetic Acids in Drinking Water using Two-Dimensional Ion
Chromatography with Suppressed Conductivity Detection. January 2017.
Version 1.0. Thermo Fisher Scientific, 490 Lakeside Drive,
Sunnyvale, CA 94085. (Available at https://www.regulations.gov;
docket ID No. EPA-HQ-OW-2017-0284.)
Thermo Fisher. 2017b. Validation Summary Report for Thermo Fisher
Method 557.1. May 11, 2017. Thermo Fisher Scientific, 490 Lakeside
Drive, Sunnyvale, CA 94085. (Available at https://www.regulations.gov; docket ID No. EPA-HQ-OW-2017-0284.)
Tintometer. 2016a. Continuous Measurement of Drinking Water
Turbidity Using a Lovibond PTV 1000 White Light LED Turbidimeter--
The Lovibond White Light LED Method. December 2016. Revision 1.0.
Tintometer, Inc. 6456 Parkland Drive, Sarasota, FL 34243. (Available
at https://www.regulations.gov; docket ID No. EPA-HQ-OW-2017-0284.)
Tintometer. 2016b. Alternate Test Procedure (ATP) Validation Study
Report for the Measurement of Drinking Water Turbidity up to 10 NTU
using the Candidate Lovibond Turbidity Methods, Represented by the
PTV 1000, PTV 2000, and PTV 6000 Turbidimeters. December 20, 2016.
Tintometer, Inc. 6456 Parkland Drive, Sarasota, FL 34243. (Available
at https://www.regulations.gov; docket ID No. EPA-HQ-OW-2017-0284.)
Tintometer. 2016c. Continuous Measurement of Drinking Water
Turbidity Using a Lovibond PTV 2000 660-nm LED Turbidimeter--The
Lovibond 660-nm LED Method. December 2016. Revision 1.0. Tintometer,
Inc. 6456 Parkland Drive, Sarasota, FL 34243. (Available at https://www.regulations.gov; docket ID No. EPA-HQ-OW-2017-0284.)
Tintometer. 2016d. Continuous Measurement of Drinking Water
Turbidity Using a Lovibond PTV 6000 Laser Turbidimeter--The Lovibond
6000 Laser Method. December 2016. Revision 1.0. Tintometer, Inc.
6456 Parkland Drive, Sarasota, FL 34243. (Available at https://www.regulations.gov; docket ID No. EPA-HQ-OW-2017-0284.)
USEPA. 1980. EPA Method 900.0. Gross Alpha and Gross Beta
Radioactivity in Drinking Water in ``Prescribed Procedures for
Measurement of Radioactivity in Drinking Water,'' EPA-600/4-80-032,
August 1980. (Available at https://www.nemi.gov; docket ID No. EPA-
HQ-OW-2017-0284.)
USEPA. 1983a. EPA Method 150.1. pH in ``Methods for Chemical
Analysis of Water and Wastes,'' EPA/600/4-79-020, March 1983.
(Available at https://www.regulations.gov; docket ID No. EPA-HQ-OW-
2017-0284.)
USEPA. 1983b. EPA Method 150.2. pH, Continuous Monitoring
(Electrometric), in ``Methods for Chemical Analysis of Water and
Wastes,'' EPA/600/4-79-020, March 1983. (Available at https://www.regulations.gov; docket ID No. EPA-HQ-OW-2017-0284.)
USEPA. 1995. EPA Method 552.2, Rev. 1.0. ``Determination of
Haloacetic Acids and Dalapon in Drinking Water by Liquid-Liquid
Extraction, Derivatization and Gas Chromatography with Electron
Capture Detection,'' in Methods for the Determination of Organic
Compounds in Drinking Water, Supplement III, EPA/600/R-95/131,
August 1995. (Available at https://www.nemi.gov.)
USEPA. 2003. EPA Method 552.3, Determination of Haloacetic Acids and
Dalapon in Drinking Water by Liquid-Liquid Microextraction,
Derivatization and Gas Chromatography with Electron Capture
Detection, EPA 815-B-03-002, July 2003. (Available at https://www.nemi.gov.)
USEPA. 2014. Expedited Approval of Alternative Test Procedures for
the Analysis of Contaminants Under the Safe Drinking Water Act;
Analysis and Sampling Procedures, 79 FR 35081, June 19, 2014.
USEPA. 2017. EPA Method 150.3, Determination of pH in Drinking
Water, EPA 815-B-17-001, February 2017. (Available at https://www.regulations.gov; docket ID No. EPA-HQ-OW-2017-0284.)

List of Subjects in 40 CFR Part 141

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

Dated: July 5, 2017.
Peter Grevatt,
Director, Office of Ground Water and Drinking Water.

For the reasons stated in the preamble, the Environmental
Protection Agency amends 40 CFR part 141 as follows:

[[Page 34867]]

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 entries for ``Arsenic,'' ``Beryllium,'' ``Lead,''
``Nitrate,'' ``Nitrite,'' ``Orthophosphate,'' ``pH,'' and ``Selenium''
in the table entitled ``ALTERNATIVE TESTING METHODS FOR CONTAMINANTS
LISTED AT 40 CFR 141.23(k)(1).''
0
b. By revising the table entitled ``ALTERNATIVE TESTING METHODS FOR
CONTAMINANTS LISTED AT 40 CFR 141.25(a).''
0
c. By revising the entry for ``Turbidity'' in the table entitled
``ALTERNATIVE TESTING METHODS FOR CONTAMINANTS LISTED AT 40 CFR
141.74(a)(1).''
0
d. By revising the entry for ``HAA5'' in the table entitled
``ALTERNATIVE TESTING METHODS FOR CONTAMINANTS LISTED AT 40 CFR
141.131(b)(1).''
0
e. By revising the entry for ``E. coli'' in the table entitled
``ALTERNATIVE TESTING METHODS FOR CONTAMINANTS LISTED AT 40 CFR
141.402(c)(2).''
0
f. By revising the entries for ``Total Coliforms'' and ``Escherichia
coli'' in the table entitled ``ALTERNATE TESTING METHODS FOR
CONTAMINANTS LISTED AT 40 CFR 141.852(a)(5).''
0
g. By revising footnote 33.
0
h. By adding footnotes 43 through 48.
The revisions and additions read as follows:

APPENDIX A TO SUBPART C OF PART 141--ALTERNATIVE TESTING METHODS
APPROVED FOR ANALYSES UNDER THE SAFE DRINKING WATER ACT

* * * * *

Alternative Testing Methods for Contaminants Listed at 40 CFR 141.23(k)(1)
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
SM 21st edition SM 22nd edition
Contaminant Methodology EPA method \1\ \28\ SM online \3\ ASTM \4\ Other
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

* * * * * * *
Arsenic.......................... Atomic Absorption; ....................... 3113 B........... 3113 B........... 3113 B-04, B-10. D 2972-08 C, -15 C....
Furnace.
Hydride Atomic ....................... 3114 B........... 3114 B........... 3114 B-09....... D 2972-08 B, -15 B....
Absorption.
Axially viewed 200.5, Revision 4.2.\2\
inductively coupled
plasma-atomic
emission
spectrometry (AVICP-
AES).

* * * * * * *
Beryllium........................ Inductively Coupled ....................... 3120 B........... 3120 B...........
Plasma.
Atomic Absorption; ....................... 3113 B........... 3113 B........... 3113 B-04, B-10. D 3645-08 B, -15 B....
Furnace.
Axially viewed 200.5, Revision 4.2.\2\
inductively coupled
plasma-atomic
emission
spectrometry (AVICP-
AES).

* * * * * * *
Lead............................. Atomic Absorption; ....................... 3113 B........... 3113 B........... 3113 B-04, B-10. D 3559-08 D, -15 D....
Furnace.
Axially viewed 200.5, Revision 4.2.\2\
inductively coupled
plasma-atomic
emission
spectrometry (AVICP-
AES).

* * * * * * *
Nitrate.......................... Ion Chromatography.. ....................... 4110 B........... 4110 B........... ................ D 4327-11.............
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 (1-Reagent) \8\
Colorimetric. NECi Nitrate-Reductase.\40\

* * * * * * *
Colorimetric; Direct ....................... ................. ................. ................ ...................... Hach TNTplus\TM\ 835/836
Method 10206.\23\
Capillary Ion ....................... ................. ................. ................ D 6508-15.............
Electrophoresis.
Nitrite.......................... Ion Chromatography.. ....................... 4110 B........... 4110 B........... ................ D 4327-11.............
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 (1-Reagent) \8\
Colorimetric. NECi Nitrate-Reductase.\40\

[[Page 34868]]

* * * * * * *
Capillary Ion ....................... ................. ................. ................ D 6508-15.............
Electrophoresis.
Orthophosphate................... Ion Chromatography.. ....................... 4110 B........... 4110 B........... ................ D 4327-11.............
Colorimetric, ....................... 4500-P E......... 4500-P E......... 4500-P E-99.....
ascorbic acid,
single reagent.
Colorimetric, ....................... 4500-P F......... 4500-P F......... 4500-P F-99..... ...................... Thermo Fisher Discrete
Automated, Ascorbic Analyzer.\41\
Acid.

* * * * * * *
Capillary Ion ....................... ................. ................. ................ D 6508-15.............
Electrophoresis.
pH............................... Electrometric....... 150.3 \48\............. 4500-H\+\ B...... 4500-H\+\ B...... ................ D 1293-12.............
Selenium......................... Hydride-Atomic ....................... 3114 B........... 3114 B........... 3114 B-09....... D 3859-08 A, --15 A...
Absorption.
Atomic Absorption; ....................... 3113 B........... 3113 B........... 3113 B-04, B-10. D 3859-08 B, -15 B....
Furnace.
Axially viewed 200.5, Revision 4.2.
inductively coupled \2\
plasma-atomic
emission
spectrometry (AVICP-
AES).

* * * * *

Alternative Testing Methods for Contaminants Listed at 40 CFR 141.25(a)
--------------------------------------------------------------------------------------------------------------------------------------------------------
Contaminant Methodology SM 21st edition \1\ SM 22nd edition \28\ ASTM \4\ SM online \3\
--------------------------------------------------------------------------------------------------------------------------------------------------------
Naturally Occurring:
Gross alpha and beta..... Evaporation..... 7110 B................. 7110 B................
Liquid ....................... ...................... D 7283-17............. 7110 D-17
Scintillation.
Gross alpha.............. Coprecipitation. 7110 C................. 7110 C................
Radium 226............... Radon emanation. 7500-Ra C.............. 7500-Ra C............. D 3454-05.............
Radiochemical... 7500-Ra B.............. 7500-Ra B............. D 2460-07.............
Gamma ....................... 7500-Ra E............. ...................... 7500-Ra E-07
Spectrometry.
Radium 228............... Radiochemical... 7500-Ra D.............. 7500-Ra D.............
Gamma ....................... 7500-Ra E............. ...................... 7500-Ra E-07
Spectrometry.
Uranium.................. Radiochemical... 7500-U B............... 7500-U B..............
ICP-MS.......... 3125................... ...................... D 5673-05, 10.........
Alpha 7500-U C............... 7500-U C.............. D 3972-09.............
spectrometry.
Laser ....................... ...................... D 5174-07.............
Phosphorimetry.
Alpha Liquid ....................... D 6239-09.............
Scintillation
Spectrometry.
Man-Made:
Radioactive Cesium....... Radiochemical... 7500-Cs B.............. 7500-Cs B.............
Gamma Ray 7120................... 7120.................. D 3649-06.............
Spectrometry.
Radioactive Iodine....... Radiochemical... 7500-I B............... 7500-I B.............. D 3649-06.
7500-I C............... 7500-I C,.............
7500-I D............... 7500-I D..............
Gamma Ray 7120................... 7120.................. D 4785-08.............
Spectrometry.
Radioactive Strontium 89, Radiochemical... 7500-Sr B.............. 7500-Sr B.............
90.
Tritium.................. Liquid 7500-\3\''H B.......... 7500-\3\ H B.......... D 4107-08.............
Scintillation.
Gamma Emitters........... Gamma Ray 7120................... 7120.................. D 3649-06.
Spectrometry. 7500-Cs B.............. 7500-Cs B............. D 4785-08.............
7500-I B............... 7500-I B..............
--------------------------------------------------------------------------------------------------------------------------------------------------------

Alternative Testing Methods for Contaminants Listed at 40 CFR 141.74(a)(1)
--------------------------------------------------------------------------------------------------------------------------------------------------------
Organism Methodology SM 21st edition \1\ SM 22nd edition \28\ SM online \3\ Other
--------------------------------------------------------------------------------------------------------------------------------------------------------

* * * * * * *
Turbidity.................... Nephelometric 2130 B................. 2130 B................
Method.
Laser ....................... ...................... ...................... Mitchell M5271.\10\ Mitchell
Nephelometry M5331, Rev. 1.2.\42\ Lovibond
(online). PTV 6000.\46\
LED Nephelometry ....................... ...................... ...................... Mitchell M5331 \11\ Mitchell
(online). M5331, Rev. 1.2.\42\ Lovibond
PTV 2000.\45\
LED Nephelometry ....................... ...................... ...................... AMI Turbiwell.\15\ Lovibond
(online). PTV 1000.\44\
LED Nephelometry ....................... ...................... ...................... Orion AQ4500.\12\
(portable).
360[deg] ....................... ...................... ...................... Hach Method 10258.\39\
Nephelometry.
--------------------------------------------------------------------------------------------------------------------------------------------------------

[[Page 34869]]

* * * * *

Alternative Testing Methods for Contaminants Listed at 40 CFR 141.131(b)(1)
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
SM 21st edition
Contaminant Methodology EPA method ASTM \4\ SM online \3\ \1\ SM 22nd edition \28\ Other
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

* * * * * * *
HAA5............................. LLE (diazomethane)/ ....................... ................. 6251 B-07........ 6251 B.......... 6251 B................
GC/ECD.
Ion Chromatography 557. \14\
Electrospray
Ionization Tandem
Mass Spectrometry
(IC-ESI-MS/MS).
Two-Dimensional Ion ....................... ................. ................. ................ ...................... Thermo Fisher 557.1.\47\
Chromatography (IC)
with Suppressed
Conductivity
Detection.

* * * * *

Alternative Testing Methods for Contaminants Listed at 40 CFR 141.402(c)(2)
--------------------------------------------------------------------------------------------------------------------------------------------------------
SM 20th edition SM 21st SM 22nd
Organism Methodology \6\ edition \1\ edition \28\ SM Online \3\ Other
--------------------------------------------------------------------------------------------------------------------------------------------------------
E. coli........................ Colilert[supreg].. ............... 9223 B........ 9223 B........ 9223 B-97, B-04.....
Colisure[supreg].. ............... 9223 B........ 9223 B........ 9223 B-97, B-04.....
Colilert-18....... 9223 B......... 9223 B........ 9223 B........ 9223 B-97, B-04.....
Readycult[supreg]. ............... .............. .............. .................... Readycult.[supreg] \20\
Colitag........... ............... .............. .............. .................... Modified Colitag.\TM\ \13\
Chromocult[supreg] ............... .............. .............. .................... Chromocult.[supreg] \21\
EC-MUG............ ............... .............. 9221 F........ 9221 F-06...........
Tecta EC/TC. \33\
\43\

* * * * * * *
--------------------------------------------------------------------------------------------------------------------------------------------------------

* * * * *

Alternative Testing Methods for Contaminants Listed at 40 CFR 141.852(a)(5)
--------------------------------------------------------------------------------------------------------------------------------------------------------
Methodology SM 20th, 21st editions
Organism category Method 1 6 SM 22nd edition \28\ SM online \3\
--------------------------------------------------------------------------------------------------------------------------------------------------------
Total Coliforms............... Lactose Standard Total Coliform ........................ 9221 B.1, B.2.......... 9221 B.1, B.2-06.
Fermentation Fermentation Technique.
Methods.
Enzyme Substrate Colilert[supreg]........ ........................ 9223 B................. 9223 B-04.
Methods.
Colisure[supreg]........ ........................ 9223 B................. 9223 B-04.
Colilert-18............. 9223 B.................. 9223 B................. 9223 B-04.
Tecta EC/TC. 33 43
Escherichia coli.............. Escherichia coli EC-MUG medium........... ........................ 9221 F.1............... 9221 F.1-06.
Procedure
(following
Lactose
Fermentation
Methods).
Enzyme Substrate Colilert[supreg]........ ........................ 9223 B................. 9223 B-04.
Methods.
Colisure[supreg]........ ........................ 9223 B................. 9223 B-04.
Colilert-18............. 9223 B.................. 9223 B................. 9223 B-04.
Tecta EC/TC. 33 43

* * * * * * *
--------------------------------------------------------------------------------------------------------------------------------------------------------
\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 https://www.epa.gov/water-research/epa-drinking-water-research-methods.)
\3\ Standard Methods Online are available at https://www.standardmethods.org. The year in which each method was approved by the Standard Methods
Committee is designated by the last two digits in the method number. The methods listed are the only online versions that may be used.
\4\ Available from ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959 or https://astm.org. The methods listed are the only
alternative versions that may be used.
* * * * * * *
\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.
* * * * * * *
\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.
* * * * * * *

[[Page 34870]]

\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, https://www.thermo.com.
\13\ Modified ColitagTM Method. ``Modified ColitagTM Test Method for the Simultaneous Detection of E. coli and other Total Coliforms in Water (ATP D05-
0035),'' August 28, 2009. Available at 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 the National Service Center for Environmental Publications
(www.epa.gov/nscep). Search ``815B09012''.
\15\ AMI Turbiwell, ``Continuous Measurement of Turbidity Using a SWAN AMI Turbiwell Turbidimeter,'' August 2009. Available at https://www.nemi.gov or
from Markus Bernasconi, SWAN Analytische Instrumente AG, Studbachstrasse 13, CH-8340 Hinwil, Switzerland.
* * * * * * *
\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.
* * * * * * *
\23\ Hach Company. ``Hach Company TNTplus\TM\ 835/836 Nitrate Method 10206--Spectrophotometric Measurement of Nitrate in Water and Wastewater,'' January
2011. 5600 Lindbergh Drive, P.O. Box 389, Loveland, Colorado 80539. (Available at https://www.hach.com.)
* * * * * * *
\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.
* * * * * * *
\33\ Tecta EC/TC. ``Techta\TM\ EC/TC Medium and Techta\TM\ Instrument: A Presence/Absence Method for the Simultaneous Detection of Total Coliforms and
Escherichia coli (E. coli) in Drinking Water,'' version 1.0, May 2014. Available from Pathogen Detection Systems, Inc., 382 King Street East,
Kingston, Ontario, Canada, K7K 2Y2.
* * * * * * *
\39\ Hach Company. ``Hach Method 10258--Determination of Turbidity by 360[deg] Nephelometry,'' January 2016. 5600 Lindbergh Drive, P.O. Box 389,
Loveland, CO 80539. (Available at https://www.hach.com.)
\40\ Nitrate Elimination Company Inc. (NECi). ``Method for Nitrate Reductase Nitrate-Nitrogen Analysis of Drinking Water,'' February 2016. Superior
Enzymes Inc., 334 Hecla Street, Lake Linden, Michigan 49945.
\41\ Thermo Fisher. ``Thermo Fisher Scientific Drinking Water Orthophosphate Method for Thermo Scientific Gallery Discrete Analyzer,'' February 2016.
Revision 5. Thermo Fisher Scientific, Ratastie 2, 01620 Vantaa, Finland.
\42\ Mitchell Method M5331, Revision 1.2. ``Determination of Turbidity by LED or Laser Nephelometry,'' February 2016. Available from Leck Mitchell,
Ph.D., PE, 656 Independence Valley Dr., Grand Junction, CO 81507.
\43\ Tecta EC/TC. ``TectaTM EC/TC Medium and the TectaTM Instrument: A Presence/Absence Method for the Simultaneous Detection of Total Coliforms and
Escherichia coli (E. coli) in Drinking Water,'' version 2.0, February 2017. Available from Pathogen Detection Systems, Inc., 382 King Street East,
Kingston, Ontario, Canada, K7K 2Y2.
\44\ Lovibond PTV 1000. ``Continuous Measurement of Drinking Water Turbidity Using a Lovibond PTV 1000 White Light LED Turbidimeter,'' December 2016.
Revision 1.0. Available from Tintometer, Inc., 6456 Parkland Drive, Sarasota, FL 34243.
\45\ Lovibond PTV 2000. ``Continuous Measurement of Drinking Water Turbidity Using a Lovibond PTV 2000 660-nm LED Turbidimeter,'' December 2016.
Revision 1.0. Available from Tintometer, Inc., 6456 Parkland Drive, Sarasota, FL 34243.
\46\ Lovibond PTV 6000. ``Continuous Measurement of Drinking Water Turbidity Using a Lovibond PTV 6000 Laser Turbidimeter,'' December 2016. Revision
1.0. Available from Tintometer, Inc., 6456 Parkland Drive, Sarasota, FL 34243.
\47\ Thermo Fisher. ``Thermo Fisher Method 557.1: Determination of Haloacetic Acids in Drinking Water using Two-Dimensional Ion Chromatography with
Suppressed Conductivity Detection,'' January 2017. Version 1.0. Available from Thermo Fisher Scientific, 490 Lakeside Dr., Sunnyvale, CA 94085
(Richard.jack@thermofisher.com).
\48\ EPA Method 150.3. ``Determination of pH in Drinking Water,'' February 2017. EPA 815-B-17-001. Available at the National Service Center for
Environmental Publications (www.epa.gov/nscep).

[FR Doc. 2017-15380 Filed 7-26-17; 8:45 am]
BILLING CODE 6560-50-P

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.