SEPA SrIPro,ection Analytical Methods Recommended for Drinking Water Compliance Monitoring of Secondary Contaminants Analysis for the following contaminants may be conducted with the methods in the following table, or their equivalent as determined by EPA. Methods for copper, fluoride and pH are listed in 40 CFR 141.23 and methods for the remaining contaminants are in 40 CFR 143.4. Additional methods are listed in Appendix A to Subpart C of Part 141. The recommended monitoring for these contaminants is specified in 40 CFR 143.4. The CFR is the legal reference for approved methods and takes precedence over this table. The table should accurately reflect the analytical methods information published in 40 CFR 141 and 143. Secondary Contaminants: Aluminum Criteria for analyzing water samples for aluminum, copper, iron, manganese, silver and zinc with digestion or directly, without digestion, and other recommended procedures are contained in Technical Notes on Drinking Water Methods (EPA/600/R-94/173), available through EPA's digital publications National Environmental Publications Internet Site (EPA/600/R-94/173). Method Organization Reference Title Date EPA Publication Number Source of Method 200.5, Rev. EPA Determination of Trace Elements October 2003 E PA/600- R-06/115 EPA/600-R-06/115 4.2 in Drinking Water by Axially Viewed Inductively Coupled Plasma - Atomic Emission Spectrometry 200.7, Rev. EPA In Methods for the Determination May 1994 EPA/600/R-94/111 National Environmental Methods 4.4 of Metals in Environmental Samples, Supplement 1 Index 200.8, Rev. EPA In Methods for the Determination May 1994 EPA/600/R-94/111 National Environmental Methods 5.4 of Metals in Environmental Samples, Supplement 1 Index 200.9, Rev. EPA In Methods for the Determination May 1994 EPA/600/R-94/111 National Environmental Methods Index 2.2 of Metals in Environmental Samples, Supplement 1 3111 D Standard Methods Standard Methods for the Examination of Water and Wastewater, 18th Edition 1992 Standard Methods Office of Water (MS - 4606 M) EPA 815-B-24-005 January 2024 ------- Page 2 of 34 3111 D Standard Methods Standard Methods for the Examination of Water and Wastewater, 19th Edition 1995 Standard Methods 3111 D Standard Methods Standard Methods for the Examination of Water and Wastewater, 21st Edition 2005 Standard Methods 3111 D Standard Methods Standard Methods for the Examination of Water and Wastewater, 22nd Edition 2012 Standard Methods 3111 D Standard Methods Standard Methods for the Examination of Water and Wastewater, 23rd Edition 2017 Standard Methods 3111 D Standard Methods Standard Methods for the Examination of Water and Wastewater, 24th Edition 2023 Standard Methods 3113 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 18th Edition 1992 Standard Methods 3113 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 19th Edition 1995 Standard Methods 3113 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 21st Edition 2005 Standard Methods 3113 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 22nd Edition 2012 Standard Methods 3113 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 23rd Edition 2017 Standard Methods 3113 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 24th Edition 2023 Standard Methods 3120 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 18th Edition 1992 Standard Methods 3120 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 19th Edition 1995 Standard Methods ------- Page 3 of 34 3120 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 20th Edition 1998 Standard Methods 3120 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 21st Edition 2005 Standard Methods 3120 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 22nd Edition 2012 Standard Methods 3120 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 23rd Edition 2017 Standard Methods 3120 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 24th Edition 2023 Standard Methods 3111 D-99 Standard Methods Online Online version. Approval year is designated by the last 2 digits. Only online versions cited in the regulations or in Appendix A to Subpart C of Part 141 are approved. 1999 Standard Methods 3113 B-99 Standard Methods Online Online version. Approval year is designated by the last 2 digits. Only online versions cited in the regulations or in Appendix A to Subpart C of Part 141 are approved. 1999 Standard Methods 3113 B-04 Standard Methods Online Online version. Approval year is designated by the last 2 digits. Only online versions cited in the regulations or in Appendix A to Subpart C of Part 141 are approved. 2004 Standard Methods 3113 B-10 Standard Methods Online Online version. Approval year is designated by the last 2 digits. Only online versions cited in the regulations or in Appendix A to Subpart C of Part 141 are approved. 2010 Standard Methods 3120 B-99 Standard Methods Online Online version. Approval year is designated by the last 2 digits. 1999 Standard Methods ------- Page 4 of 34 Only online versions cited in the regulations or in Appendix A to Subpart C of Part 141 are approved. Chloride Method Organization Reference Title Date EPA Publication Number Source of Method D4327-97 ASTM International Standard Test Method for Anions in Water by Suppressed Ion Chromatography 1997 ASTM International D4327-03 ASTM International Standard Test Method for Anions in Water by Suppressed Ion Chromatography 2003 ASTM International D4327-11 ASTM International Standard Test Method for Anions in Water by Suppressed Ion Chromatography 2011 ASTM International D4327-17 ASTM International Standard Test Method for Anions in Water by Suppressed Ion Chromatography 2017 ASTM International D512-89 B ASTM International Standard Test Method for Chloride Ion in Water - Silver Nitrate Titration 1989 ASTM International D512-04 B ASTM International Standard Test Method for Chloride Ion in Water - Silver Nitrate Titration 2004 ASTM International D512-12 B ASTM International Standard Test Method for Chloride Ion in Water - Silver Nitrate Titration 2012 ASTM International 300.0, Rev. 2.1 EPA In Methods for the Determination of Inorganic Substances in Environmental Samples August 1993 E PA/600/R-93/100 National Environmental Methods Index 300.1, Rev. 1.0 EPA In Methods for the Determination of Organic and Inorganic Compounds in Drinking Water, Vol. 1 August 2000 EPA 815-R-00-014 National Environmental Methods Index 4110 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 18th Edition 1992 Standard Methods ------- Page 5 of 34 4110 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 19th Edition 1995 Standard Methods 4110 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 20th Edition 1998 Standard Methods 4110 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 21st Edition 2005 Standard Methods 4110 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 22nd Edition 2012 Standard Methods 4110 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 23rd Edition 2017 Standard Methods 4110 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 24th Edition 2023 Standard Methods 4500-CI" B Standard Methods Standard Methods for the Examination of Water and Wastewater, 18th Edition 1992 Standard Methods 4500-CI" B Standard Methods Standard Methods for the Examination of Water and Wastewater, 19th Edition 1995 Standard Methods 4500-CI" B Standard Methods Standard Methods for the Examination of Water and Wastewater, 20th Edition 1998 Standard Methods 4500-CI" B Standard Methods Standard Methods for the Examination of Water and Wastewater, 21st Edition 2005 Standard Methods 4500-CI" B Standard Methods Standard Methods for the Examination of Water and Wastewater, 22nd Edition 2012 Standard Methods 4500-CI" B Standard Methods Standard Methods for the Examination of Water and Wastewater, 23rd Edition 2017 Standard Methods 4500-CI" B Standard Methods Standard Methods for the Examination of Water and Wastewater, 24th Edition 2023 Standard Methods ------- Page 6 of 34 4500-CI" D Standard Methods Standard Methods for the Examination of Water and Wastewater, 18th Edition 1992 Standard Methods 4500-CI" D Standard Methods Standard Methods for the Examination of Water and Wastewater, 19th Edition 1995 Standard Methods 4500-CI" D Standard Methods Standard Methods for the Examination of Water and Wastewater, 20th Edition 1998 Standard Methods 4500-CI" D Standard Methods Standard Methods for the Examination of Water and Wastewater, 21st Edition 2005 Standard Methods 4500-CI" D Standard Methods Standard Methods for the Examination of Water and Wastewater, 22nd Edition 2012 Standard Methods 4500-CI" D Standard Methods Standard Methods for the Examination of Water and Wastewater, 23rd Edition 2017 Standard Methods 4500-CI" D Standard Methods Standard Methods for the Examination of Water and Wastewater, 24th Edition 2023 Standard Methods 4110 B-00 Standard Methods Online Online version. Approval year is designated by the last 2 digits. Only online versions cited in the regulations or in Appendix A to Subpart C of Part 141 are approved. 2000 Standard Methods 4500-CI" B- Standard Online version. Approval year is 1997 Standard Methods 97 Methods Online designated by the last 2 digits. Only online versions cited in the regulations or in Appendix A to Subpart C of Part 141 are approved. 4500-CI" D- Standard Online version. Approval year is 1997 Standard Methods 97 Methods Online designated by the last 2 digits. Only online versions cited in the regulations or in Appendix A to Subpart C of Part 141 are approved. ------- Page 7 of 34 Method D6508, Rev. 2 Waters Corporation Test Method for Determination of Dissolved Inorganic Anions in Aqueous Matrices Using Capillary Ion Electrophoresis and Chromate Electrolyte Waters Corporation Color Method Organization Reference Title Date EPA Publication Number Source of Method 2120 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 18th Edition 1992 Standard Methods 2120 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 19th Edition 1995 Standard Methods 2120 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 20th Edition 1998 Standard Methods 2120 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 21st Edition 2005 Standard Methods 2120 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 22nd Edition 2012 Standard Methods 2120 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 23rd Edition 2017 Standard Methods 2120 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 24th Edition 2023 Standard Methods 2120 B-01 Standard Methods Online Online version. Approval year is designated by the last 2 digits. Only online versions cited in the regulations or in Appendix A to Subpart C of Part 141 are approved. 2001 Standard Methods ------- Page 8 of 34 Copper Criteria for analyzing water samples for aluminum, copper, iron, manganese, silver and zinc with digestion or directly, without digestion, and other recommended procedures are contained in Technical Notes on Drinking Water Methods (EPA/600/R-94/173), available through EPA's digital publications National Environmental Publications Internet Site (EPA/600/R-94/173). Method Organization Reference Title Date EPA Publication Number Source of Method D1688-95 A ASTM International Standard Test Methods for Copper in Water - Atomic Absorption, Direct 1995 ASTM International D1688-02 A ASTM International Standard Test Methods for Copper in Water - Atomic Absorption, Direct 2002 ASTM International D1688-07 A ASTM International Standard Test Methods for Copper in Water - Atomic Absorption, Direct 2007 ASTM International D1688-12 A ASTM International Standard Test Methods for Copper in Water - Atomic Absorption, Direct 2012 ASTM International D1688-17 A ASTM International Standard Test Methods for Copper in Water - Atomic Absorption, Direct 2017 ASTM International D1688-95 C ASTM International Standard Test Method for Copper in Water - Atomic Absorption, Graphite Furnace 1995 ASTM International D1688-02 C ASTM International Standard Test Method for Copper in Water - Atomic Absorption, Graphite Furnace 2002 ASTM International D1688-07 C ASTM International Standard Test Method for Copper in Water - Atomic Absorption, Graphite Furnace 2007 ASTM International D1688-12 C ASTM International Standard Test Method for Copper in Water - Atomic Absorption, Graphite Furnace 2012 ASTM International D1688-17 C ASTM International Standard Test Method for Copper in Water - Atomic Absorption, Graphite Furnace 2017 ASTM International 200.5, Rev. 4.2 EPA Determination of Trace Elements in Drinking Water by Axially Viewed Inductively Coupled October 2003 E PA/600- R-06/115 EPA/600-R-06/115 ------- Page 9 of 34 Plasma - Atomic Emission Spectrometry 200.7, Rev. 4.4 EPA In Methods for the Determination of Metals in Environmental Samples, Supplement 1 May 1994 EPA/600/R-94/111 National Environmental Methods Index 200.8, Rev. 5.4 EPA In Methods for the Determination of Metals in Environmental Samples, Supplement 1 May 1994 EPA/600/R-94/111 National Environmental Methods Index 200.9, Rev. 2.2 EPA In Methods for the Determination of Metals in Environmental Samples, Supplement 1 May 1994 EPA/600/R-94/111 National Environmental Methods Index Hach 8026, Rev. 1.2 Hach Company Spectrophotometric Measurement of Copper in Finished Drinking Water December 2015 Hach 8026, Rev. 1.2 Hach 10272, Rev. 1.2 Hach Company Spectrophotometric Measurement of Copper in Finished Drinking Water December 2015 Hach 10272. Rev. 1.2 3111 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 18th Edition 1992 Standard Methods 3111 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 19th Edition 1995 Standard Methods 3111 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 21st Edition 2005 Standard Methods 3111 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 22nd Edition 2012 Standard Methods 3111 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 23rd Edition 2017 Standard Methods 3111 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 24th Edition 2023 Standard Methods 3113 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 18th Edition 1992 Standard Methods 3113 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 19th Edition 1995 Standard Methods ------- Page 10 of 34 3113 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 21st Edition 2005 Standard Methods 3113 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 22nd Edition 2012 Standard Methods 3113 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 23rd Edition 2017 Standard Methods 3113 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 24th Edition 2023 Standard Methods 3120 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 18th Edition 1992 Standard Methods 3120 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 19th Edition 1995 Standard Methods 3120 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 20th Edition 1998 Standard Methods 3120 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 21st Edition 2005 Standard Methods 3120 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 22nd Edition 2012 Standard Methods 3120 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 23rd Edition 2017 Standard Methods 3120 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 24th Edition 2023 Standard Methods 3111 B-99 Standard Methods Online Online version. Approval year is designated by the last 2 digits. Only online versions cited in the regulations or in Appendix A to Subpart C of Part 141 are approved. 1999 Standard Methods 3113 B-99 Standard Methods Online Online version. Approval year is designated by the last 2 digits. 1999 Standard Methods ------- Page 11 of 34 Only online versions cited in the regulations or in Appendix A to Subpart C of Part 141 are approved. 3113 B-04 Standard Methods Online Online version. Approval year is designated by the last 2 digits. Only online versions cited in the regulations or in Appendix A to Subpart C of Part 141 are approved. 2004 Standard Methods 3113 B-10 Standard Methods Online Online version. Approval year is designated by the last 2 digits. Only online versions cited in the regulations or in Appendix A to Subpart C of Part 141 are approved. 2010 Standard Methods 3120 B-99 Standard Methods Online Online version. Approval year is designated by the last 2 digits. Only online versions cited in the regulations or in Appendix A to Subpart C of Part 141 are approved. 1999 Standard Methods Fluoride Method Organization Reference Title Date EPA Publication Number Source of Method D1179-93 B ASTM International Standard Test Methods for Fluoride in Water - Ion Selective Electrode 1993 ASTM International D1179-99 B ASTM International Standard Test Methods for Fluoride in Water - Ion Selective Electrode 1999 ASTM International D1179-04 B ASTM International Standard Test Methods for Fluoride in Water - Ion Selective Electrode 2004 ASTM International D1179-10 B ASTM International Standard Test Methods for Fluoride in Water - Ion Selective Electrode 2010 ASTM International ------- Page 12 of 34 D1179-16 B ASTM International Standard Test Methods for Fluoride in Water - Ion Selective Electrode 2010 ASTM International D4327-97 ASTM International Standard Test Method for Anions in Water by Suppressed Ion Chromatography 1997 ASTM International D4327-03 ASTM International Standard Test Method for Anions in Water by Suppressed Ion Chromatography 2003 ASTM International D4327-11 ASTM International Standard Test Method for Anions in Water by Suppressed Ion Chromatography 2011 ASTM International D4327-17 ASTM International Standard Test Method for Anions in Water by Suppressed Ion Chromatography 2017 ASTM International 129-71W Bran + Luebbe Fluoride in Water and Wastewater December 1972 Seal Analytical 380-75WE Bran + Luebbe Fluoride in Water and Wastewater February 1976 Seal Analytical 300.0, Rev. 2.1 EPA In Methods for the Determination of Inorganic Substances in Environmental Samples August 1993 E PA/600/R-93/100 National Environmental Methods Index 300.1, Rev. 1.0 EPA In Methods for the Determination of Organic and Inorganic Compounds in Drinking Water, Vol. 1 August 2000 EPA 815-R-00-014 National Environmental Methods Index Hach 10225, Rev. 2.0 Hach Company Hach Company SPADNS 2 (Arsenic- free) Fluoride Method 10225 - Spectrophotometric Measurement of Fluoride in Water and Wastewater January 2011 Hach 10225, Rev. 2.0 Hach 10312, Rev. 1.0 Hach Company Hach Method 10312 - Spectrophotometric Measurement of Fluoride in Finished Drinking Water Aluminum-Chromeazurol S complex (AL-CAS) Using Planar Reagent-filled Cuvettes August 2022 Hach 10312, Rev. 1.0 4110 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 18th Edition 1992 Standard Methods ------- Page 13 of 34 4110 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 19th Edition 1995 Standard Methods 4110 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 20th Edition 1998 Standard Methods 4110 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 21st Edition 2005 Standard Methods 4110 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 22nd Edition 2012 Standard Methods 4110 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 23rd Edition 2017 Standard Methods 4110 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 24th Edition 2023 Standard Methods 4500-F" B Standard Methods Standard Methods for the Examination of Water and Wastewater, 18th Edition 1992 Standard Methods 4500-F" B Standard Methods Standard Methods for the Examination of Water and Wastewater, 19th Edition 1995 Standard Methods 4500-F" B Standard Methods Standard Methods for the Examination of Water and Wastewater, 20th Edition 1998 Standard Methods 4500-F" B Standard Methods Standard Methods for the Examination of Water and Wastewater, 21st Edition 2005 Standard Methods 4500-F" B Standard Methods Standard Methods for the Examination of Water and Wastewater, 22nd Edition 2012 Standard Methods 4500-F" B Standard Methods Standard Methods for the Examination of Water and Wastewater, 23rd Edition 2017 Standard Methods 4500-F" B Standard Methods Standard Methods for the Examination of Water and Wastewater, 24th Edition 2023 Standard Methods ------- Page 14 of 34 4500-F" C Standard Methods Standard Methods for the Examination of Water and Wastewater, 18th Edition 1992 Standard Methods 4500-F" C Standard Methods Standard Methods for the Examination of Water and Wastewater, 19th Edition 1995 Standard Methods 4500-F" C Standard Methods Standard Methods for the Examination of Water and Wastewater, 20th Edition 1998 Standard Methods 4500-F" C Standard Methods Standard Methods for the Examination of Water and Wastewater, 21st Edition 2005 Standard Methods 4500-F" C Standard Methods Standard Methods for the Examination of Water and Wastewater, 22nd Edition 2012 Standard Methods 4500-F" C Standard Methods Standard Methods for the Examination of Water and Wastewater, 23rd Edition 2017 Standard Methods 4500-F" C Standard Methods Standard Methods for the Examination of Water and Wastewater, 24th Edition 2023 Standard Methods 4500-F" D Standard Methods Standard Methods for the Examination of Water and Wastewater, 18th Edition 1992 Standard Methods 4500-F" D Standard Methods Standard Methods for the Examination of Water and Wastewater, 19th Edition 1995 Standard Methods 4500-F" D Standard Methods Standard Methods for the Examination of Water and Wastewater, 20th Edition 1998 Standard Methods 4500-F" D Standard Methods Standard Methods for the Examination of Water and Wastewater, 21st Edition 2005 Standard Methods 4500-F" D Standard Methods Standard Methods for the Examination of Water and Wastewater, 22nd Edition 2012 Standard Methods 4500-F" D Standard Methods Standard Methods for the Examination of Water and Wastewater, 23rd Edition 2017 Standard Methods ------- Page 15 of 34 4500-F" D Standard Methods Standard Methods for the Examination of Water and Wastewater, 24th Edition 2023 Standard Methods 4500-F" E Standard Methods Standard Methods for the Examination of Water and Wastewater, 18th Edition 1992 Standard Methods 4500-F" E Standard Methods Standard Methods for the Examination of Water and Wastewater, 19th Edition 1995 Standard Methods 4500-F" E Standard Methods Standard Methods for the Examination of Water and Wastewater, 20th Edition 1998 Standard Methods 4500-F" E Standard Methods Standard Methods for the Examination of Water and Wastewater, 21st Edition 2005 Standard Methods 4500-F" E Standard Methods Standard Methods for the Examination of Water and Wastewater, 22nd Edition 2012 Standard Methods 4500-F" E Standard Methods Standard Methods for the Examination of Water and Wastewater, 23rd Edition 2017 Standard Methods 4500-F" E Standard Methods Standard Methods for the Examination of Water and Wastewater, 24th Edition 2023 Standard Methods 4110 B-00 Standard Methods Online Online version. Approval year is designated by the last 2 digits. Only online versions cited in the regulations or in Appendix A to Subpart C of Part 141 are approved. 2000 Standard Methods 4500-F" B-97 Standard Methods Online Online version. Approval year is designated by the last 2 digits. Only online versions cited in the regulations or in Appendix A to Subpart C of Part 141 are approved. 1997 Standard Methods 4500-F" C-97 Standard Methods Online Online version. Approval year is designated by the last 2 digits. Only online versions cited in the regulations or in Appendix A to 1997 Standard Methods ------- Page 16 of 34 Subpart C of Part 141 are approved. 4500-F" D-97 Standard Methods Online Online version. Approval year is designated by the last 2 digits. Only online versions cited in the regulations or in Appendix A to Subpart C of Part 141 are approved. 1977 Standard Methods 4500-F" E-97 Standard Methods Online Online version. Approval year is designated by the last 2 digits. Only online versions cited in the regulations or in Appendix A to Subpart C of Part 141 are approved. 1997 Standard Methods D6508, Rev. 2 Waters Corp. Test Method for Determination of Dissolved Inorganic Anions in Aqueous Matrices Using Capillary Ion Electrophoresis and Chromate Electrolyte Waters Corporation Foaming Agent Method Organization Reference Title Date EPA Publication Number Source of Method 5540 C Standard Methods Standard Methods for the Examination of Water and Wastewater, 18th Edition 1992 Standard Methods 5540 C Standard Methods Standard Methods for the Examination of Water and Wastewater, 19th Edition 1995 Standard Methods 5540 C Standard Methods Standard Methods for the Examination of Water and Wastewater, 20th Edition 1998 Standard Methods 5540 C Standard Methods Standard Methods for the Examination of Water and Wastewater, 21st Edition 2005 Standard Methods 5540 C Standard Methods Standard Methods for the Examination of Water and Wastewater, 22nd Edition 2012 Standard Methods ------- Page 17 of 34 5540 C Standard Methods Standard Methods for the Examination of Water and Wastewater, 23rd Edition 2017 Standard Methods 5540 C Standard Methods Standard Methods for the Examination of Water and Wastewater, 24th Edition 2023 Standard Methods 5540 C-00 Standard Methods Online Online version. Approval year is designated by the last 2 digits. Only online versions cited in the regulations or in Appendix A to Subpart C of Part 141 are approved. 2000 Standard Methods Iron Criteria for analyzing water samples for aluminum, copper, iron, manganese, silver and zinc with digestion or directly, without digestion, and other recommended procedures are contained in Technical Notes on Drinking Water Methods (EPA/600/R-94/173), available through EPA's digital publications National Environmental Publications Internet Site (EPA/600/R-94/173). Method Organization Reference Title Date EPA Publication Number Source of Method 200.5, Rev. 4.2 EPA Determination of Trace Elements in Drinking Water by Axially Viewed Inductively Coupled Plasma-Atomic Emission Spectrometry October 2003 E PA/600- R-06/115 EPA/600-R-06/115 200.7, Rev. 4.4 EPA In Methods for the Determination of Metals in Environmental Samples, Supplement 1 May 1994 EPA/600/R-94/111 National Environmental Methods Index 200.9, Rev. 2.2 EPA In Methods for the Determination of Metals in Environmental Samples, Supplement 1 May 1994 EPA/600/R-94/111 National Environmental Methods Index 3111 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 18th Edition 1992 Standard Methods 3111 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 19th Edition 1995 Standard Methods 3111 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 21st Edition 2005 Standard Methods ------- Page 18 of 34 3111 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 22nd Edition 2012 Standard Methods 3111 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 23rd Edition 2017 Standard Methods 3111 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 24th Edition 2023 Standard Methods 3113 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 18th Edition 1992 Standard Methods 3113 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 19th Edition 1995 Standard Methods 3113 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 21st Edition 2005 Standard Methods 3113 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 22nd Edition 2012 Standard Methods 3113 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 23rd Edition 2017 Standard Methods 3113 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 24th Edition 2023 Standard Methods 3120 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 18th Edition 1992 Standard Methods 3120 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 19th Edition 1995 Standard Methods 3120 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 20th Edition 1998 Standard Methods 3120 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 21st Edition 2005 Standard Methods ------- Page 19 of 34 3120 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 22nd Edition 2012 Standard Methods 3120 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 23rd Edition 2017 Standard Methods 3120 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 24th Edition 2023 Standard Methods 3111 B-99 Standard Methods Online Online version. Approval year is designated by the last 2 digits. Only online versions cited in the regulations or in Appendix A to Subpart C of Part 141 are approved. 1999 Standard Methods 3113 B-99 Standard Methods Online Online version. Approval year is designated by the last 2 digits. Only online versions cited in the regulations or in Appendix A to Subpart C of Part 141 are approved. 1999 Standard Methods 3113 B-04 Standard Methods Online Online version. Approval year is designated by the last 2 digits. Only online versions cited in the regulations or in Appendix A to Subpart C of Part 141 are approved. 2004 Standard Methods 3113 B-10 Standard Methods Online Online version. Approval year is designated by the last 2 digits. Only online versions cited in the regulations or in Appendix A to Subpart C of Part 141 are approved. 2010 Standard Methods 3120 B-99 Standard Methods Online Online version. Approval year is designated by the last 2 digits. Only online versions cited in the regulations or in Appendix A to Subpart C of Part 141 are approved. 1999 Standard Methods ------- Page 20 of 34 Manganese Criteria for analyzing water samples for aluminum, copper, iron, manganese, silver and zinc with digestion or directly, without digestion, and other recommended procedures are contained in Technical Notes on Drinking Water Methods (EPA/600/R-94/173), available through EPA's digital publications National Environmental Publications Internet Site (EPA/600/R-94/173). Method Organization Reference Title Date EPA Publication Number Source of Method 200.5, Rev. 4.2 EPA Determination of Trace Elements in Drinking Water by Axially Viewed Inductively Coupled Plasma - Atomic Emission Spectrometry October 2003 E PA/600- R-06/115 EPA/600-R-06/115 200.7, Rev. 4.4 EPA In Methods for the Determination of Metals in Environmental Samples, Supplement 1 May 1994 EPA/600/R-94/111 National Environmental Methods Index 200.8, Rev. 5.4 EPA In Methods for the Determination of Metals in Environmental Samples, Supplement 1 May 1994 EPA/600/R-94/111 National Environmental Methods Index 200.9, Rev. 2.2 EPA In Methods for the Determination of Metals in Environmental Samples, Supplement 1 May 1994 EPA/600/R-94/111 National Environmental Methods Index 3111 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 18th Edition 1992 Standard Methods 3111 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 19th Edition 1995 Standard Methods 3111 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 21st Edition 2005 Standard Methods 3111 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 22nd Edition 2012 Standard Methods 3111 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 23rd Edition 2017 Standard Methods 3111 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 24th Edition 2023 Standard Methods ------- Page 21 of 34 3113 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 18th Edition 1992 Standard Methods 3113 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 19th Edition 1995 Standard Methods 3113 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 21st Edition 2005 Standard Methods 3113 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 22nd Edition 2012 Standard Methods 3113 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 23rd Edition 2017 Standard Methods 3113 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 24th Edition 2023 Standard Methods 3120 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 18th Edition 1992 Standard Methods 3120 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 19th Edition 1995 Standard Methods 3120 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 20th Edition 1998 Standard Methods 3120 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 21st Edition 2005 Standard Methods 3120 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 22nd Edition 2012 Standard Methods 3120 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 23rd Edition 2017 Standard Methods 3120 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 24th Edition 2023 Standard Methods 3111 B-99 Standard Methods Online Online version. Approval year is designated by the last 2 digits. 1999 Standard Methods ------- Page 22 of 34 Only online versions cited in the regulations or in Appendix A to Subpart C of Part 141 are approved. 3113 B-99 Standard Methods Online Online version. Approval year is designated by the last 2 digits. Only online versions cited in the regulations or in Appendix A to Subpart C of Part 141 are approved. 1999 Standard Methods 3113 B-04 Standard Methods Online Online version. Approval year is designated by the last 2 digits. Only online versions cited in the regulations or in Appendix A to Subpart C of Part 141 are approved. 2004 Standard Methods 3113 B-10 Standard Methods Online Online version. Approval year is designated by the last 2 digits. Only online versions cited in the regulations or in Appendix A to Subpart C of Part 141 are approved. 2010 Standard Methods 3120 B-99 Standard Methods Online Online version. Approval year is designated by the last 2 digits. Only online versions cited in the regulations or in Appendix A to Subpart C of Part 141 are approved. 1999 Standard Methods Odor Method Organization Reference Title Date EPA Publication Number Source of Method 2150 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 18th Edition 1992 Standard Methods 2150 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 19th Edition 1995 Standard Methods ------- Page 23 of 34 2150 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 20th Edition 1998 Standard Methods 2150 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 21st Edition 2005 Standard Methods 2150 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 22nd Edition 2012 Standard Methods 2150 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 23rd Edition 2017 Standard Methods 2150 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 24th Edition 2023 Standard Methods 2150 B-97 Standard Methods Online Online version. Approval year is designated by the last 2 digits. Only online versions cited in the regulations or in Appendix A to Subpart C of Part 141 are approved. 1997 Standard Methods pH Method Organization Reference Title Date EPA Publication Number Source of Method D1293-95 ASTM International Standard Test Methods for pH of Water 1995 ASTM International D1293-99 ASTM International Standard Test Methods for pH of Water 1999 ASTM International D1293-12 ASTM International Standard Test Methods for pH of Water 2012 ASTM International D1293-18 ASTM International Standard Test Methods for pH of Water 2018 ASTM International 150.1 EPA In Methods for Chemical Analysis of Water and Wastes March 1983 EPA/600/4-79/020 National Environmental Methods Index 150.2 EPA In Methods for Chemical Analysis of Water and Wastes March 1983 EPA/600/4-79/020 National Environmental Methods Index 150.3 EPA Determination ofpHin Drinking Water February 2017 EPA-815-B-17-001 EPA-815-B-17-001 ------- Page 24 of 34 4500-H+ B Standard Methods Standard Methods for the Examination of Water and Wastewater, 18th Edition 1992 Standard Methods 4500-H+ B Standard Methods Standard Methods for the Examination of Water and Wastewater, 19th Edition 1995 Standard Methods 4500-H+ B Standard Methods Standard Methods for the Examination of Water and Wastewater, 20th Edition 1998 Standard Methods 4500-H+ B Standard Methods Standard Methods for the Examination of Water and Wastewater, 21st Edition 2005 Standard Methods 4500-H+ B Standard Methods Standard Methods for the Examination of Water and Wastewater, 22nd Edition 2012 Standard Methods 4500-H+ B Standard Methods Standard Methods for the Examination of Water and Wastewater, 23rd Edition 2017 Standard Methods 4500-H+ B Standard Methods Standard Methods for the Examination of Water and Wastewater, 24th Edition 2023 Standard Methods 4500-H+ B- 00 Standard Methods Online Online version. Approval year is designated by the last 2 digits. Only online versions cited in the regulations or in Appendix A to Subpart C of Part 141 are approved. 2000 Standard Methods Silver Criteria for analyzing water samples for aluminum, copper, iron, manganese, silver and zinc with digestion or directly, without digestion, and other recommended procedures are contained in Technical Notes on Drinking Water Methods (EPA/600/R-94/173), available through EPA's digital publications National Environmental Publications Internet Site (EPA/600/R-94/173). Method Organization Reference Title Date EPA Publication Number Source of Method 200.5, Rev. 4.2 EPA Determination of Trace Elements in Drinking Water by Axially Viewed Inductively Coupled Plasma - Atomic Emission Spectrometry October 2003 E PA/600- R-06/115 EPA/600-R-06/115 ------- Page 25 of 34 200.7, Rev. 4.4 EPA In Methods for the Determination of Metals in Environmental Samples, Supplement 1 May 1994 EPA/600/R-94/111 National Environmental Methods Index 200.8, Rev. 5.4 EPA In Methods for the Determination of Metals in Environmental Samples, Supplement 1 May 1994 EPA/600/R-94/111 National Environmental Methods Index 200.9, Rev. 2.2 EPA In Methods for the Determination of Metals in Environmental Samples, Supplement 1 May 1994 EPA/600/R-94/111 National Environmental Methods Index 3111 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 18th Edition 1992 Standard Methods 3111 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 19th Edition 1995 Standard Methods 3111 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 21st Edition 2005 Standard Methods 3111 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 22nd Edition 2012 Standard Methods 3111 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 23rd Edition 2017 Standard Methods 3111 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 24th Edition 2023 Standard Methods 3113 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 18th Edition 1992 Standard Methods 3113 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 19th Edition 1995 Standard Methods 3113 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 21st Edition 2005 Standard Methods 3113 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 22nd Edition 2012 Standard Methods ------- Page 26 of 34 3113 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 23rd Edition 2017 Standard Methods 3113 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 24th Edition 2023 Standard Methods 3120 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 18th Edition 1992 Standard Methods 3120 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 19th Edition 1995 Standard Methods 3120 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 20th Edition 1998 Standard Methods 3120 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 21st Edition 2005 Standard Methods 3120 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 22nd Edition 2012 Standard Methods 3120 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 23rd Edition 2017 Standard Methods 3120 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 24th Edition 2023 Standard Methods 3111 B-99 Standard Methods Online Online version. Approval year is designated by the last 2 digits. Only online versions cited in the regulations or in Appendix A to Subpart C of Part 141 are approved. 1999 Standard Methods 3113 B-99 Standard Methods Online Online version. Approval year is designated by the last 2 digits. Only online versions cited in the regulations or in Appendix A to Subpart C of Part 141 are approved. 1999 Standard Methods 3113 B-04 Standard Methods Online Online version. Approval year is designated by the last 2 digits. 2004 Standard Methods ------- Page 27 of 34 Only online versions cited in the regulations or in Appendix A to Subpart C of Part 141 are approved. 3113 B-10 Standard Methods Online Online version. Approval year is designated by the last 2 digits. Only online versions cited in the regulations or in Appendix A to Subpart C of Part 141 are approved. 2010 Standard Methods 3120 B-99 Standard Methods Online Online version. Approval year is designated by the last 2 digits. Only online versions cited in the regulations or in Appendix A to Subpart C of Part 141 are approved. 1999 Standard Methods 1-3720-85 U.S. Geological Survey In Methods for Determination of Inorganic Substances in Water and Fluvial Sediments, USGS Series: Techniques of Water-Resource Investigation Report; edited by Fishman, M.J. and Friedman, L.C. 1989 USGS Sulfate Method Organization Reference Title Date EPA Publication Number Source of Method D4327-97 ASTM International Standard Test Method for Anions in Water by Suppressed Ion Chromatography 1997 ASTM International D4327-03 ASTM International Standard Test Method for Anions in Water by Suppressed Ion Chromatography 2003 ASTM International D4327-11 ASTM International Standard Test Method for Anions in Water by Suppressed Ion Chromatography 2011 ASTM International D4327-17 ASTM International Standard Test Method for Anions in Water by Suppressed Ion Chromatography 2017 ASTM International D516-90 ASTM International Standard Test Method for Sulfate Ion in Water 1990 ASTM International ------- Page 28 of 34 D516-02 ASTM International Standard Test Method for Sulfate Ion in Water 2002 ASTM International D516-07 ASTM International Standard Test Method for Sulfate Ion in Water 2007 ASTM International D516-11 ASTM International Standard Test Method for Sulfate Ion in Water 2011 ASTM International D516-16 ASTM International Standard Test Method for Sulfate ion in Water 2016 ASTM International 300.0, Rev. 2.1 EPA In Methods for the Determination of Inorganic Substances in Environmental Samples August 1993 E PA/600/R-93/100 National Environmental Methods Index 300.1, Rev. 1.0 EPA In Methods for the Determination of Organic and Inorganic Compounds in Drinking Water, Vol. 1 August 2000 EPA 815-R-00-014 National Environmental Methods Index 375.2, Rev. 2.0 EPA In Methods for the Determination of Inorganic Substances in Environmental Samples August 1993 E PA/600/R-93/100 National Environmental Methods Index 4110 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 18th Edition 1992 Standard Methods 4110 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 19th Edition 1995 Standard Methods 4110 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 20th Edition 1998 Standard Methods 4110 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 21st Edition 2005 Standard Methods 4110 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 22nd Edition 2012 Standard Methods 4110 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 23rd Edition 2017 Standard Methods 4110 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 24th Edition 2023 Standard Methods ------- Page 29 of 34 4500-S042" c Standard Methods Standard Methods for the Examination of Water and Wastewater, 18th Edition 1992 Standard Methods 4500-SO42- c Standard Methods Standard Methods for the Examination of Water and Wastewater, 19th Edition 1995 Standard Methods 4500-SO42" c Standard Methods Standard Methods for the Examination of Water and Wastewater, 20th Edition 1998 Standard Methods 4500-SO42" c Standard Methods Standard Methods for the Examination of Water and Wastewater, 21st Edition 2005 Standard Methods 4500-SO42- c Standard Methods Standard Methods for the Examination of Water and Wastewater, 22nd Edition 2012 Standard Methods 4500-SO42" c Standard Methods Standard Methods for the Examination of Water and Wastewater, 23rd Edition 2017 Standard Methods 4500-SO42" c Standard Methods Standard Methods for the Examination of Water and Wastewater, 24th Edition 2023 Standard Methods 4500-SO42- D Standard Methods Standard Methods for the Examination of Water and Wastewater, 18th Edition 1992 Standard Methods 4500-S042" D Standard Methods Standard Methods for the Examination of Water and Wastewater, 19th Edition 1995 Standard Methods 4500-S042" D Standard Methods Standard Methods for the Examination of Water and Wastewater, 20th Edition 1998 Standard Methods 4500-S042- D Standard Methods Standard Methods for the Examination of Water and Wastewater, 21st Edition 2005 Standard Methods 4500-S042" D Standard Methods Standard Methods for the Examination of Water and Wastewater, 22nd Edition 2012 Standard Methods 4500-S042" D Standard Methods Standard Methods for the Examination of Water and Wastewater, 23rd Edition 2017 Standard Methods ------- Page 30 of 34 4500-S042" D Standard Methods Standard Methods for the Examination of Water and Wastewater, 24th Edition 2023 Standard Methods 4500-S042- E Standard Methods Standard Methods for the Examination of Water and Wastewater, 18th Edition 1992 Standard Methods 4500-S042" E Standard Methods Standard Methods for the Examination of Water and Wastewater, 19th Edition 1995 Standard Methods 4500-S042" E Standard Methods Standard Methods for the Examination of Water and Wastewater, 20th Edition 1998 Standard Methods 4500-S042- E Standard Methods Standard Methods for the Examination of Water and Wastewater, 21st Edition 2005 Standard Methods 4500-S042" E Standard Methods Standard Methods for the Examination of Water and Wastewater, 22nd Edition 2012 Standard Methods 4500-S042" E Standard Methods Standard Methods for the Examination of Water and Wastewater, 23rd Edition 2017 Standard Methods 4500-S042- E Standard Methods Standard Methods for the Examination of Water and Wastewater, 24th Edition 2023 Standard Methods 4500-S042" F Standard Methods Standard Methods for the Examination of Water and Wastewater, 18th Edition 1992 Standard Methods 4500-S042" F Standard Methods Standard Methods for the Examination of Water and Wastewater, 19th Edition 1995 Standard Methods 4500-S042- F Standard Methods Standard Methods for the Examination of Water and Wastewater, 20th Edition 1998 Standard Methods 4500-S042" F Standard Methods Standard Methods for the Examination of Water and Wastewater, 21st Edition 2005 Standard Methods 4500-S042" F Standard Methods Standard Methods for the Examination of Water and Wastewater, 22nd Edition 2012 Standard Methods ------- Page 31 of 34 4500-S042" F Standard Methods Standard Methods for the Examination of Water and Wastewater, 23rd Edition 2017 Standard Methods 4500-S042- F Standard Methods Standard Methods for the Examination of Water and Wastewater, 24th Edition 2023 Standard Methods 4110 B-00 Standard Methods Online Online version. Approval year is designated by the last 2 digits. Only online versions cited in the regulations or in Appendix A to Subpart C of Part 141 are approved. 2000 Standard Methods 4500-S042- C-97 Standard Methods Online Online version. Approval year is designated by the last 2 digits. Only online versions cited in the regulations or in Appendix A to Subpart C of Part 141 are approved. 1997 Standard Methods 4500-S042- D-97 Standard Methods Online Online version. Approval year is designated by the last 2 digits. Only online versions cited in the regulations or in Appendix A to Subpart C of Part 141 are approved. 1997 Standard Methods 4500-S042" E-97 Standard Methods Online Online version. Approval year is designated by the last 2 digits. Only online versions cited in the regulations or in Appendix A to Subpart C of Part 141 are approved. 1997 Standard Methods 4500-S042" F-97 Standard Methods Online Online version. Approval year is designated by the last 2 digits. Only online versions cited in the regulations or in Appendix A to Subpart C of Part 141 are approved. 1997 Standard Methods D6508, Rev. 2 Waters Corp. Test Method for Determination of Dissolved Inorganic Anions in Aqueous Matrices Using Capillary Ion Electrophoresis and Chromate Electrolyte Waters Corporation ------- Page 32 of 34 Total Disso ved Solids Method Organization Reference Title Date EPA Publication Number Source of Method 2540 C Standard Methods Standard Methods for the Examination of Water and Wastewater, 18th Edition 1992 Standard Methods 2540 C Standard Methods Standard Methods for the Examination of Water and Wastewater, 19th Edition 1995 Standard Methods 2540 C Standard Methods Standard Methods for the Examination of Water and Wastewater, 20th Edition 1998 Standard Methods 2540 C Standard Methods Standard Methods for the Examination of Water and Wastewater, 21st Edition 2005 Standard Methods 2540 C Standard Methods Standard Methods for the Examination of Water and Wastewater, 22nd Edition 2012 Standard Methods 2540 C Standard Methods Standard Methods for the Examination of Water and Wastewater, 23rd Edition 2017 Standard Methods 2540 C Standard Methods Standard Methods for the Examination of Water and Wastewater, 24th Edition 2023 Standard Methods 2540 C-97 Standard Methods Online Online version. Approval year is designated by the last 2 digits. Only online versions cited in the regulations or in Appendix A to Subpart C of Part 141 are approved. 1997 Standard Methods Zinc Criteria for analyzing water samples for aluminum, copper, iron, manganese, silver and zinc with digestion or directly, without digestion, and other recommended procedures are contained in Technical Notes on Drinking Water Methods (EPA/600/R-94/173), available through EPA's digital publications Method Organization Reference Title Date EPA Publication Source of Method Number ------- Page 33 of 34 200.5, Rev. 4.2 EPA Determination of Trace Elements in Drinking Water by Axially Viewed Inductively Coupled Plasma - Atomic Emission Spectrometry October 2003 E PA/600- R-06/115 EPA/600-R-06/115 200.7, Rev. 4.4 EPA In Methods for the Determination of Metals in Environmental Samples, Supplement 1 May 1994 EPA/600/R-94/111 National Environmental Methods Index 200.8, Rev. 5.4 EPA In Methods for the Determination of Metals in Environmental Samples, Supplement 1 May 1994 EPA/600/R-94/111 National Environmental Methods Index 3111 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 18th Edition 1992 Standard Methods 3111 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 19th Edition 1995 Standard Methods 3111 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 21st Edition 2005 Standard Methods 3111 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 22nd Edition 2012 Standard Methods 3111 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 23rd Edition 2017 Standard Methods 3111 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 24th Edition 2023 Standard Methods 3120 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 18th Edition 1992 Standard Methods 3120 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 19th Edition 1995 Standard Methods 3120 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 20th Edition 1998 Standard Methods 3120 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 21st Edition 2005 Standard Methods ------- Page 34 of 34 3120 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 22nd Edition 2012 Standard Methods 3120 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 23rd Edition 2017 Standard Methods 3120 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 24th Edition 2023 Standard Methods 3111 B-99 Standard Methods Online Online version. Approval year is designated by the last 2 digits. Only online versions cited in the regulations or in Appendix A to Subpart C of Part 141 are approved. 1999 Standard Methods 3120 B-99 Standard Methods Online Online version. Approval year is designated by the last 2 digits. Only online versions cited in the regulations or in Appendix A to Subpart C of Part 141 are approved. 1999 Standard Methods ------- |