Analytical Methods Approved for Drinking Water Compliance Monitoring of Radionuclides Analysis for the following contaminants shall be conducted in accordance with the methods in the following table, or their equivalent as determined by EPA. The methods for these contaminants are specified in 40 CFR 141.25. Additional methods are listed in Appendix A to Subpart C of Part 141. Monitoring requirements for these contaminants are specified in 40 CFR 141.26. 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. Naturally Occurring Radionuclides: Gross Alpha Natural uranium and thorium-230 are approved as gross alpha calibration standards for gross alpha with co-precipitation and evaporation methods; americium- 241 is approved with co-precipitation methods. Method Organization Reference Title Date EPA Publication Number Source of Method EPA 00-02 EPA In Radiochemistry Procedures Manual: Radiochemical Determination of Gross Alpha Particle Activity in Drinking Water by Co-precipitation June 1984 EPA 520/5-84-006 EPA 520/5-84-006 7110 C Standard Methods Standard Methods for the Examination of Water and Wastewater, 18th Edition 1992 Standard Methods 7110 C Standard Methods Standard Methods for the Examination of Water and Wastewater, 19th Edition 1995 Standard Methods 7110 C Standard Methods Standard Methods for the Examination of Water and Wastewater, 20th Edition 1998 Standard Methods 7110 C Standard Methods Standard Methods for the Examination of Water and Wastewater, 21st Edition 2005 Standard Methods 7110 C Standard Methods Standard Methods for the Examination of Water and Wastewater, 22nd Edition 2012 Standard Methods oEPA United States Environmental Protection Agency Office of Water (MS - 4606 M) EPA 815-B-24-004 January 2024 ------- Page 2 of 28 7110 C Standard Methods Standard Methods for the Examination of Water and Wastewater, 23rd Edition 2017 Standard Methods 7110 C Standard Methods Standard Methods for the Examination of Water and Wastewater, 24th Edition 2023 Standard Methods 7110 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 Gross Alpha and Beta Natural uranium and thorium-230 are approved as gross alpha calibration standards for gross alpha with co-precipitation and evaporation methods; americium- 241 is approved with co-precipitation methods. Method Organization Reference Title Date EPA Publication Number Source of Method D7283-17 ASTM International Alpha and Beta Activity in Water by Liquid Scintillation Counting 2017 ASTM International EPA 00-01 EPA In Radiochemistry Procedures Manual: Radiochemical Determination of Gross Alpha and Gross Beta Particle Activity in Water June 1984 EPA 520/5-84-006 EPA 520/5-84-006 EPA 900.0 EPA In Prescribed Procedures for Measurement of Radioactivity in Drinking Water: Gross Alpha and Gross Beta Radioactivity August 1980 EPA 600/4/80-032 EPA 600/4/80-032 EPA 900.0, EPA Gross Alpha and Gross Beta February EPA 815-B-18-002 EPA 815-B-18-002 Rev. 1.0 Radioactivity in Drinking Water 2017 Page 1 in EPA In Radiochemical Analytical March 1979 EMSLLV053917 EMSL LV 053917 EMSL LV Procedures for Analysis of 053917 Environmental Samples: Determination of Gross Alpha and Beta in Water Page 1 in EPA In Interim Radiochemical Revised EPA 600/4-75-008 600/4-75-008 EPA 600/4- Methodology for Drinking Water: March 1976 75-008 Gross Alpha and Beta Radioactivity in Drinking Water ------- Page 3 of 28 302 Standard Methods Standard Methods for the Examination of Water and Wastewater, 13th Edition 1971 Standard Methods 7110 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 17th Edition 1989 Standard Methods 7110 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 18th Edition 1992 Standard Methods 7110 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 19th Edition 1995 Standard Methods 7110 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 20th Edition 1998 Standard Methods 7110 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 21st Edition 2005 Standard Methods 7110 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 22nd Edition 2012 Standard Methods 7110 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 23rd Edition 2017 Standard Methods 7110 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 24th Edition 2023 Standard Methods 7110 D Standard Methods Standard Methods for the Examination of Water and Wastewater, 24th Edition 2023 Standard Methods 7110 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 7110 D-17 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 2017 Standard Methods ------- Page 4 of 28 Subpart C of Part 141 are approved. R-1120-76 U.S. Geological Survey In Methods for the Determination of Radioactive Substances in Water and Fluvial Sediments, USGS Series: Techniques of Water- Resource Investigation. Report Number: 05-A5; by Thatcher, L.L., Janzer, V.J., and Edwards, K.W. 1977 USGS Radium-226 Method Organization Reference Title Date EPA Publication Number Source of Method D2460-97 ASTM International Standard Test Method for Alpha- Particle-Emitting Isotopes of Radium in Water 1997 ASTM International D2460-07 ASTM International Standard Test Method for Alpha- Particle-Emitting Isotopes of Radium in Water 2007 ASTM International D3454-97 ASTM International Standard Test Method for Radium- 226 in Water 1997 ASTM International D3454-05 ASTM International Standard Test Method for Radium- 226 in Water 2005 ASTM International D3454-18 ASTM International Standard Test Method for Radium- 226 in Water 2018 ASTM International D3454-21 ASTM International Standard Test Method for Radium- 226 in Water 2021 ASTM International Ra-04 Dept. of Homeland Security In EML Procedures Manual, 28th Edition, Vol. 1, Department of Energy Report, HASL-300 1997 HASL-300 Ra-05 (Ra- 04 see Note) Dept. of Homeland Security In EML Procedures Manual, 27th Edition, Vol. 1, Department of Energy Report, HASL-300-ED.27- Vol. 1 Note: See footnote 8 in the table at 40 CFR 141.25(a)(25); in the 27th Edition 'Ra-04' is listed as 'Ra- 05' 1990 HASL-300-Ed. 27 EPA 903.0 EPA In Prescribed Procedures for Measurement of Radioactivity in August 1980 EPA 600/4/80-032 EPA 600/4/80-032 ------- Page 5 of 28 Drinking Water: Alpha-Emitting Radium Isotopes EPA 903.0, Rev. 1.0 EPA Alpha-Emitting Radium Isotopes in Drinking Water January 2021 EPA 815-B-21-002 EPA 815-B-21-002 EPA 903.1 EPA In Prescribed Procedures for Measurement of Radioactivity in Drinking Water: Radium-226 - Radon Emanation Technique August 1980 EPA 600/4/80-032 EPA 600/4/80-032 EPA 903.1, Rev. 1.0 EPA Radium-226 in Drinking Water- Radon Emanation Technique January 2021 EPA 815-B-21-003 EPA-815-B-21-003 EPA Ra-03 EPA In Radiochemistry Procedures Manual: Radiochemical Determination of Radium-226 in Water Samples June 1984 EPA 520/5-84-006 EPA 520/5-84-006 EPA Ra-04 EPA In Radiochemistry Procedures Manual: Radiochemical Determination of Radium-226, De- emanation Procedure June 1984 EPA 520/5-84-006 EPA 520/5-84-006 Page 13 in EPA 600/4- 75-008 EPA In Interim Radiochemical Methodology for Drinking Water: Radium-226 in Drinking Water- Alpha-Emitting Radium Isotopes - Precipitation Method Revised March 1976 EPA 600/4-75-008 600/4-75-008 Page 16 in EPA 600/4- 75-008 EPA In Interim Radiochemical Methodology for Drinking Water: Radium-226 in Drinking Water- Radon Emanation Technique Revised March 1976 EPA 600/4-75-008 600/4-75-008 Page 19 in EMSL LV 053917 EPA In Radiochemical Analytical Procedures for Analysis of Environmental Samples: Determination of Radium-226 and Radium-228 in Water, Soil, Air and Biological Tissue March 1979 EMSLLV053917 EMSL LV 053917 GA Georgia Institute of Technology The Determination of Radium-226 and Radium-228 in Drinking Water by Gamma-ray Spectrometry using HPGE or Ge(Li) Detectors, Revision 1.2 December 2004 GA NY NY Dept. of Health Determination ofRa-226 and Ra- 228 (Ra-02) January 1980, Revised June 1982 Radiological Sciences Institute for Laboratories and Research, NY State Department of Health, Albany, NY ------- Page 6 of 28 304 Standard Methods Standard Methods for the Examination of Water and Wastewater, 13th Edition 1971 Standard Methods 305 Standard Methods Standard Methods for the Examination of Water and Wastewater, 13th Edition 1971 Standard Methods 7500-Ra B Standard Methods Standard Methods for the Examination of Water and Wastewater, 17th Edition 1989 Standard Methods 7500-Ra B Standard Methods Standard Methods for the Examination of Water and Wastewater, 18th Edition 1992 Standard Methods 7500-Ra B Standard Methods Standard Methods for the Examination of Water and Wastewater, 19th Edition 1995 Standard Methods 7500-Ra B Standard Methods Standard Methods for the Examination of Water and Wastewater, 20th Edition 1998 Standard Methods 7500-Ra B Standard Methods Standard Methods for the Examination of Water and Wastewater, 21st Edition 2005 Standard Methods 7500-Ra B Standard Methods Standard Methods for the Examination of Water and Wastewater, 22nd Edition 2012 Standard Methods 7500-Ra B Standard Methods Standard Methods for the Examination of Water and Wastewater, 23rd Edition 2017 Standard Methods 7500-Ra B Standard Methods Standard Methods for the Examination of Water and Wastewater, 24th Edition 2023 Standard Methods 7500-Ra C Standard Methods Standard Methods for the Examination of Water and Wastewater, 17th Edition 1989 Standard Methods 7500-Ra C Standard Methods Standard Methods for the Examination of Water and Wastewater, 18th Edition 1992 Standard Methods 7500-Ra C Standard Methods Standard Methods for the Examination of Water and Wastewater, 19th Edition 1995 Standard Methods ------- Page 7 of 28 7500-Ra C Standard Methods Standard Methods for the Examination of Water and Wastewater, 20th Edition 1998 Standard Methods 7500-Ra C Standard Methods Standard Methods for the Examination of Water and Wastewater, 21st Edition 2005 Standard Methods 7500-Ra C Standard Methods Standard Methods for the Examination of Water and Wastewater, 22nd Edition 2012 Standard Methods 7500-Ra C Standard Methods Standard Methods for the Examination of Water and Wastewater, 23rd Edition 2017 Standard Methods 7500-Ra C Standard Methods Standard Methods for the Examination of Water and Wastewater, 24th Edition 2023 Standard Methods 7500-Ra E Standard Methods Standard Methods for the Examination of Water and Wastewater, 22nd Edition 2012 Standard Methods 7500-Ra E Standard Methods Standard Methods for the Examination of Water and Wastewater, 23rd Edition 2017 Standard Methods 7500-Ra E Standard Methods Standard Methods for the Examination of Water and Wastewater, 24th Edition 2023 Standard Methods 7500-Ra B- Standard Online version. Approval year is 2001 Standard Methods 01 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. 7500-Ra C- Standard Online version. Approval year is 2001 Standard Methods 01 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. 7500-Ra E- Standard Online version. Approval year is 2007 Standard Methods 07 Methods Online designated by the last 2 digits. Only online versions cited in the regulations or in Appendix A to ------- Page 8 of 28 Subpart C of Part 141 are approved. R-1140-76 U.S. Geological Survey In Methods for the Determination of Radioactive Substances in Water and Fluvial Sediments, USGS Series: Techniques of Water- Resource Investigation. Report Number: 05-A5; by Thatcher, L.L., Janzer, V.J., and Edwards, K.W. 1977 USGS R-1141-76 U.S. Geological Survey In Methods for the Determination of Radioactive Substances in Water and Fluvial Sediments, USGS Series: Techniques of Water- Resource Investigation. Report Number: 05-A5; by Thatcher, L.L., Janzer, V.J., and Edwards, K.W. 1977 USGS Radium-228 Method Organization Reference Title Date EPA Publication Number Source of Method EPA 904.0 EPA In Prescribed Procedures for Measurement of Radioactivity in Drinking Water: Radium-228 August 1980 EPA 600/4/80-032 EPA 600/4/80-032 EPA 904.0, Rev. 1.0 EPA Radium-228 in Drinking Water March 2022 EPA 815-B-22-003 EPA 815-B-22-003 EPA Ra-05 EPA In Radiochemistry Procedures Manual: Radiochemical Determination of Radium-228 in Water Samples June 1984 EPA 520/5-84-006 EPA 520/5-84-006 Page 19 in EMSL LV 053917 EPA In Radiochemical Analytical Procedures for Analysis of Environmental Samples: Determination of Radium-226 and Radium-228 in Water, Soil, Air and Biological Tissue March 1979 EMSLLV053917 EMSL LV 053917 Page 24 in EPA 600/4- 75-008 EPA In Interim Radiochemical Methodology for Drinking Water: Radium-228 in Drinking Water- Sequential Method Radium- 228/Radium-226 Revised March 1976 EPA 600/4-75-008 600/4-75-008 ------- Page 9 of 28 GA Georgia Institute of Technology The Determination of Radium-226 and Radium-228 in Drinking Water by Gamma-ray Spectrometry using HPGE or Ge(Li) Detectors, Revision 1.2 December 2004 GA NJ NJ Dept. of Environmental Protection Determination of Ra-228 in Drinking Water August 1980 State of New Jersey, Department of Environmental Protection, Trenton, NJ NY NY Dept. of Health Determination ofRa-226 and Ra- 228 (Ra-02) January 1980, Revised June 1982 Radiological Sciences Institute for Laboratories and Research, NY State Department of Health, Albany, NY 7500-Ra D Standard Methods Standard Methods for the Examination of Water and Wastewater, 17th Edition 1989 Standard Methods 7500-Ra D Standard Methods Standard Methods for the Examination of Water and Wastewater, 18th Edition 1992 Standard Methods 7500-Ra D Standard Methods Standard Methods for the Examination of Water and Wastewater, 19th Edition 1995 Standard Methods 7500-Ra D Standard Methods Standard Methods for the Examination of Water and Wastewater, 20th Edition 1998 Standard Methods 7500-Ra D Standard Methods Standard Methods for the Examination of Water and Wastewater, 21st Edition 2005 Standard Methods 7500-Ra D Standard Methods Standard Methods for the Examination of Water and Wastewater, 22nd Edition 2012 Standard Methods 7500-Ra D Standard Methods Standard Methods for the Examination of Water and Wastewater, 23rd Edition 2017 Standard Methods 7500-Ra D Standard Methods Standard Methods for the Examination of Water and Wastewater, 24th Edition 2023 Standard Methods 7500-Ra E Standard Methods Standard Methods for the Examination of Water and Wastewater, 22nd Edition 2012 Standard Methods 7500-Ra E Standard Methods Standard Methods for the Examination of Water and Wastewater, 23rd Edition 2017 Standard Methods ------- Page 10 of 28 7500-Ra E Standard Methods Standard Methods for the Examination of Water and Wastewater, 24th Edition 2023 Standard Methods 7500-Ra D- 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 7500-Ra E- 07 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. 2007 Standard Methods R-1142-76 U.S. Geological Survey In Methods for the Determination of Radioactive Substances in Water and Fluvial Sediments, USGS Series: Techniques of Water- Resource Investigation. Report Number: 05-A5; by Thatcher, L.L., Janzer, V.J., and Edwards, K.W. 1977 USGS Uranium If uranium (U) is determined by mass, a 0.67 pCi/ng conversion factor must be used. This conversion factor is based on 1:1 activity ratio of U-234 and U-238, characteristic of naturally occurring uranium. Method Organization Reference Title Date EPA Publication Number Source of Method D2907-97 ASTM International Standard Test Methods for Microquantities of Uranium in Water by Fluorometry 1997 ASTM International D3972-97 ASTM International Standard Test Method for Isotopic Uranium in Water by Radiochemistry 1997 ASTM International D3972-02 ASTM International Standard Test Method for Isotopic Uranium in Water by Radiochemistry 2002 ASTM International D3972-09 ASTM International Standard Test Method for Isotopic Uranium in Water by Radiochemistry 2009 ASTM International ------- Page 11 of 28 D5174-97 ASTM International Standard Test Method for Trace Uranium by Pulsed Laser Phosphorimetry 1997 ASTM International D5174-02 ASTM International Standard Test Method for Trace Uranium by Pulsed Laser Phosphorimetry 2002 ASTM International D5174-07 ASTM International Standard Test Method for Trace Uranium by Pulsed Laser Phosphorimetry 2007 ASTM International D5673-03 ASTM International Standard Test Method for Elements in Water by Inductively Coupled Plasma-Mass Spectrometry 2003 ASTM International D5673-05 ASTM International Standard Test Method for Elements in Water by Inductively Coupled Plasma-Mass Spectrometry 2005 ASTM International D5673-10 ASTM International Standard Test Method for Elements in Water by Inductively Coupled Plasma-Mass Spectrometry 2010 ASTM International D5673-16 ASTM International Standard Test Method for Elements in Water by Inductively Coupled Plasma-Mass Spectrometry 2016 ASTM International D6239-09 ASTM International Standard Test Method for Uranium in Drinking Water by High- Resolution Alpha-Liquid Scintillation Spectrometry 2009 ASTM International U-02 Dept. of Homeland Security In EML Procedures Manual, 27th Edition, Vol. 1, Department of Energy Report, HASL-300-ED.27- Vol. 1 1990 HASL-300-Ed. 27 U-02 Dept. of Homeland Security In EML Procedures Manual, 28th Edition, Vol. 1, Department of Energy Report, HASL-300 1997 HASL-300 U-04 Dept. of Homeland Security In EML Procedures Manual, 27th Edition, Vol. 1, Department of Energy Report, HASL-300-ED.27- Vol. 1 1990 HASL-300-Ed. 27 ------- Page 12 of 28 U-04 Dept. of Homeland Security In EML Procedures Manual, 28th Edition, Vol. 1, Department of Energy Report, HASL-300 1997 HASL-300 200.8, 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 EPA 00-07 EPA In Radiochemistry Procedures Manual: Radiochemical Determination of Thorium and Uranium in Water June 1984 EPA 520/5-84-006 EPA 520/5-84-006 EPA 908.0 EPA In Prescribed Procedures for Measurement of Radioactivity in Drinking Water: Uranium - Radiochemical Method August 1980 EPA 600/4/80-032 EPA 600/4/80-032 EPA 908.1 EPA In Prescribed Procedures for Measurement of Radioactivity in Drinking Water: Uranium - Fluorometric Method August 1980 EPA 600/4/80-032 EPA 600/4/80-032 Page 33 in EMSL LV 053917 EPA In Radiochemical Analytical Procedures for Analysis of Environmental Samples: Isotopic Determination of Plutonium, Uranium, and Thorium in Water, Soil, Air and Biological Tissue March 1979 EMSLLV053917 EMSL LV 053917 3125 Standard Methods Standard Methods for the Examination of Water and Wastewater, 20th Edition 1998 Standard Methods 3125 Standard Methods Standard Methods for the Examination of Water and Wastewater, 21st Edition 2005 Standard Methods 7500-U B Standard Methods Standard Methods for the Examination of Water and Wastewater, 17th Edition 1989 Standard Methods 7500-U B Standard Methods Standard Methods for the Examination of Water and Wastewater, 18th Edition 1992 Standard Methods 7500-U B Standard Methods Standard Methods for the Examination of Water and Wastewater, 19th Edition 1995 Standard Methods ------- Page 13 of 28 7500-U B Standard Methods Standard Methods for the Examination of Water and Wastewater, 20th Edition 1998 Standard Methods 7500-U B Standard Methods Standard Methods for the Examination of Water and Wastewater, 21st Edition 2005 Standard Methods 7500-U B Standard Methods Standard Methods for the Examination of Water and Wastewater, 22nd Edition 2012 Standard Methods 7500-U B Standard Methods Standard Methods for the Examination of Water and Wastewater, 23rd Edition 2017 Standard Methods 7500-U B Standard Methods Standard Methods for the Examination of Water and Wastewater, 24th Edition 2023 Standard Methods 7500-U C Standard Methods Standard Methods for the Examination of Water and Wastewater, 17th Edition 1989 Standard Methods 7500-U C Standard Methods Standard Methods for the Examination of Water and Wastewater, 18th Edition 1992 Standard Methods 7500-U C Standard Methods Standard Methods for the Examination of Water and Wastewater, 19th Edition 1995 Standard Methods 7500-U C Standard Methods Standard Methods for the Examination of Water and Wastewater, 20th Edition 1998 Standard Methods 7500-U C Standard Methods Standard Methods for the Examination of Water and Wastewater, 21st Edition 2005 Standard Methods 7500-U C Standard Methods Standard Methods for the Examination of Water and Wastewater, 22nd Edition 2012 Standard Methods 7500-U C Standard Methods Standard Methods for the Examination of Water and Wastewater, 23rd Edition 2017 Standard Methods 7500-U C Standard Methods Standard Methods for the Examination of Water and Wastewater, 24th Edition 2023 Standard Methods 7500-U B-00 Standard Methods Online Online version. Approval year is designated by the last 2 digits. 2000 Standard Methods ------- Page 14 of 28 Only online versions cited in the regulations or in Appendix A to Subpart C of Part 141 are approved. 7500-U 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 R-1180-76 U.S. Geological Survey In Methods for the Determination of Radioactive Substances in Water and Fluvial Sediments, USGS Series: Techniques of Water- Resource Investigation. Report Number: 05-A5; by Thatcher, L.L., Janzer, V.J., and Edwards, K.W. 1977 USGS R-1181-76 U.S. Geological Survey In Methods for the Determination of Radioactive Substances in Water and Fluvial Sediments, USGS Series: Techniques of Water- Resource Investigation. Report Number: 05-A5; by Thatcher, L.L., Janzer, V.J., and Edwards, K.W. 1977 USGS R-1182-76 U.S. Geological Survey In Methods for the Determination of Radioactive Substances in Water and Fluvial Sediments, USGS Series: Techniques of Water- Resource Investigation. Report Number: 05-A5; by Thatcher, L.L., Janzer, V.J., and Edwards, K.W. 1977 USGS Man-made Radionuclides: Gamma Emitters Method Organization Reference Title Date EPA Publication Number Source of Method D3649-91 ASTM International Standard Practice for High Resolution Gamma-Ray Spectrometry of Water 1991 ASTM International ------- Page 15 of 28 D3649-98a ASTM International Standard Practice for High Resolution Gamma-Ray Spectrometry of Water 1998 ASTM International D3649-06 ASTM International Standard Practice for High Resolution Gamma-Ray Spectrometry of Water 2006 ASTM International D4785-93 ASTM International Standard Test Method for Low- Level Analysis of Iodine Radioisotopes in Water 1993 ASTM International D4785-00a ASTM International Standard Test Method for Low- Level Analysis of Iodine Radioisotopes in Water 2000 ASTM International D4785-08 ASTM International Standard Test Method for Low- Level Analysis of Iodine Radioisotopes in Water 2008 ASTM International D4785-20 ASTM International Standard Test Method for Low- Level Analysis of Iodine Radioisotopes in Water 2020 ASTM International Ga-01-R Dept. of Homeland Security In EML Procedures Manual, 28th Edition, Vol. 1, Department of Energy Report, HASL-300 1997 HASL-300 EPA 901.0 EPA In Prescribed Procedures for Measurement of Radioactivity in Drinking Water: Radioactive Cesium August 1980 EPA 600/4/80-032 EPA 600/4/80-032 EPA 901.1 EPA In Prescribed Procedures for Measurement of Radioactivity in Drinking Water: Gamma Emitting Radionuclides August 1980 EPA 600/4/80-032 EPA 600/4/80-032 EPA 902.0 EPA In Prescribed Procedures for Measurement of Radioactivity in Drinking Water: Radioactive Iodine August 1980 EPA 600/4/80-032 EPA 600/4/80-032 Page 92 in EPA In Radiochemical Analytical March 1979 EMSLLV053917 EMSL LV 053917 EMSL LV Procedures for Analysis of 053917 Environmental Samples: Isotopic Analysis by Gamma Ray Spectra using Lithium-Drifted Germanium Detectors 7120 Standard Methods Standard Methods for the Examination of Water and Wastewater, 19th Edition 1995 Standard Methods ------- Page 16 of 28 7120 Standard Methods Standard Methods for the Examination of Water and Wastewater, 20th Edition 1998 Standard Methods 7120 Standard Methods Standard Methods for the Examination of Water and Wastewater, 21st Edition 2005 Standard Methods 7120 Standard Methods Standard Methods for the Examination of Water and Wastewater, 22nd Edition 2012 Standard Methods 7120 Standard Methods Standard Methods for the Examination of Water and Wastewater, 23rd Edition 2017 Standard Methods 7120 Standard Methods Standard Methods for the Examination of Water and Wastewater, 24th Edition 2023 Standard Methods 7500-Cs B Standard Methods Standard Methods for the Examination of Water and Wastewater, 17th Edition 1989 Standard Methods 7500-Cs B Standard Methods Standard Methods for the Examination of Water and Wastewater, 18th Edition 1992 Standard Methods 7500-Cs B Standard Methods Standard Methods for the Examination of Water and Wastewater, 19th Edition 1995 Standard Methods 7500-Cs B Standard Methods Standard Methods for the Examination of Water and Wastewater, 20th Edition 1998 Standard Methods 7500-Cs B Standard Methods Standard Methods for the Examination of Water and Wastewater, 21st Edition 2005 Standard Methods 7500-Cs B Standard Methods Standard Methods for the Examination of Water and Wastewater, 22nd Edition 2012 Standard Methods 7500-Cs B Standard Methods Standard Methods for the Examination of Water and Wastewater, 23rd Edition 2017 Standard Methods 7500-Cs B Standard Methods Standard Methods for the Examination of Water and Wastewater, 24th Edition 2023 Standard Methods ------- Page 17 of 28 7500-1 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 17th Edition 1989 Standard Methods 7500-1 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 18th Edition 1992 Standard Methods 7500-1 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 19th Edition 1995 Standard Methods 7500-1 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 20th Edition 1998 Standard Methods 7500-1 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 21st Edition 2005 Standard Methods 7500-1 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 22nd Edition 2012 Standard Methods 7500-1 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 23rd Edition 2017 Standard Methods 7500-1 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 24th Edition 2023 Standard Methods 7120-97 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 7500-Cs B- Standard Online version. Approval year is 2000 Standard Methods 00 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. 7500-1 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 2000 Standard Methods ------- Page 18 of 28 Subpart C of Part 141 are approved. R-1110-76 U.S. Geological Survey In Methods for the Determination of Radioactive Substances in Water and Fluvial Sediments, USGS Series: Techniques of Water- Resource Investigation. Report Number: 05-A5; by Thatcher, L.L., Janzer, V.J., and Edwards, K.W. 1977 USGS Radioactive Cesium Method Organization Reference Title Date EPA Publication Number Source of Method D2459-72 ASTM International Standard Test Method for Gamma Spectrometry of Water 1972 ASTM International D3649-91 ASTM International Standard Practice for High Resolution Gamma-Ray Spectrometry of Water 1991 ASTM International D3649-98a ASTM International Standard Practice for High Resolution Gamma-Ray Spectrometry of Water 1998 ASTM International D3649-06 ASTM International Standard Practice for High Resolution Gamma-Ray Spectrometry of Water 2006 ASTM International 4.5.2.3 Dept. of Homeland Security In EML Procedures Manual, 27th Edition, Vol. 1, Department of Energy Report, HASL-300-ED.27- Vol. 1 1990 HASL-300-Ed. 27 EPA 901.0 EPA In Prescribed Procedures for Measurement of Radioactivity in Drinking Water: Radioactive Cesium August 1980 EPA 600/4/80-032 EPA 600/4/80-032 EPA 901.1 EPA In Prescribed Procedures for Measurement of Radioactivity in Drinking Water: Gamma Emitting Radionuclides August 1980 EPA 600/4/80-032 EPA 600/4/80-032 Page 4 in EPA 600/4- 75-008 EPA In Interim Radiochemical Methodology for Drinking Water: Radioactive Cesium in Drinking Water Revised March 1976 EPA 600/4-75-008 600/4-75-008 ------- Page 19 of 28 Page 92 in EMSL LV 053917 EPA In Radiochemical Analytical Procedures for Analysis of Environmental Samples: Isotopic Analysis by Gamma Ray Spectra using Lithium-Drifted Germanium Detectors March 1979 EMSLLV053917 EMSL LV 053917 7120 Standard Methods Standard Methods for the Examination of Water and Wastewater, 19th Edition 1995 Standard Methods 7120 Standard Methods Standard Methods for the Examination of Water and Wastewater, 20th Edition 1998 Standard Methods 7120 Standard Methods Standard Methods for the Examination of Water and Wastewater, 21st Edition 2005 Standard Methods 7120 Standard Methods Standard Methods for the Examination of Water and Wastewater, 22nd Edition 2012 Standard Methods 7120 Standard Methods Standard Methods for the Examination of Water and Wastewater, 23rd Edition 2017 Standard Methods 7120 Standard Methods Standard Methods for the Examination of Water and Wastewater, 24th Edition 2023 Standard Methods 7500-Cs B Standard Methods Standard Methods for the Examination of Water and Wastewater, 17th Edition 1989 Standard Methods 7500-Cs B Standard Methods Standard Methods for the Examination of Water and Wastewater, 18th Edition 1992 Standard Methods 7500-Cs B Standard Methods Standard Methods for the Examination of Water and Wastewater, 19th Edition 1995 Standard Methods 7500-Cs B Standard Methods Standard Methods for the Examination of Water and Wastewater, 20th Edition 1998 Standard Methods 7500-Cs B Standard Methods Standard Methods for the Examination of Water and Wastewater, 21st Edition 2005 Standard Methods ------- Page 20 of 28 7500-Cs B Standard Methods Standard Methods for the Examination of Water and Wastewater, 22nd Edition 2012 Standard Methods 7500-Cs B Standard Methods Standard Methods for the Examination of Water and Wastewater, 23rd Edition 2017 Standard Methods 7500-Cs B Standard Methods Standard Methods for the Examination of Water and Wastewater, 24th Edition 2023 Standard Methods 7120-97 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 7500-Cs 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 R-1110-76 U.S. Geological Survey In Methods for the Determination of Radioactive Substances in Water and Fluvial Sediments, USGS Series: Techniques of Water- Resource Investigation. Report Number: 05-A5; by Thatcher, L.L., Janzer, V.J., and Edwards, K.W. 1977 USGS R-llll-76 U.S. Geological Survey In Methods for the Determination of Radioactive Substances in Water and Fluvial Sediments, USGS Series: Techniques of Water- Resource Investigation. Report Number: 05-A5; by Thatcher, L.L., Janzer, V.J., and Edwards, K.W. 1977 USGS Radioactive Iodine Method Organization Reference Title Date EPA Publication Source of Method Number ------- Page 21 of 28 D3649-91 ASTM International Standard Practice for High Resolution Gamma-Ray Spectrometry of Water 1991 ASTM International D3649-98a ASTM International Standard Practice for High Resolution Gamma-Ray Spectrometry of Water 1998 ASTM International D3649-06 ASTM International Standard Practice for High Resolution Gamma-Ray Spectrometry of Water 2006 ASTM International D4785-93 ASTM International Standard Test Method for Low- Level Analysis of Iodine Radioisotopes in Water 1993 ASTM International D4785-00a ASTM International Standard Test Method for Low- Level Analysis of Iodine Radioisotopes in Water 2000 ASTM International D4785-08 ASTM International Standard Test Method for Low- Level Analysis of Iodine Radioisotopes in Water 2008 ASTM International D4785-20 ASTM International Standard Test Method for Low- Level Analysis of Iodine Radioisotopes in Water 2020 ASTM International 4.5.2.3 Dept. of Homeland Security In EML Procedures Manual, 27th Edition, Vol. 1, Department of Energy Report, HASL-300-ED.27- Vol. 1 1990 HASL-300-Ed. 27 EPA 901.1 EPA In Prescribed Procedures for Measurement of Radioactivity in Drinking Water: Gamma Emitting Radionuclides August 1980 EPA 600/4/80-032 EPA 600/4/80-032 EPA 902.0 EPA In Prescribed Procedures for Measurement of Radioactivity in Drinking Water: Radioactive Iodine August 1980 EPA 600/4/80-032 EPA 600/4/80-032 Page 6 in EPA 600/4- 75-008 EPA In Interim Radiochemical Methodology for Drinking Water: Radioactive Iodine in Drinking Water - Precipitation Method Revised March 1976 EPA 600/4-75-008 600/4-75-008 Page 9 in EPA 600/4- 75-008 EPA In Interim Radiochemical Methodology for Drinking Water: Radioactive Iodine in Drinking Water - Distillation Method Revised March 1976 EPA 600/4-75-008 600/4-75-008 ------- Page 22 of 28 Page 92 in EMSL LV 053917 EPA In Radiochemical Analytical Procedures for Analysis of Environmental Samples: Isotopic Analysis by Gamma Ray Spectra using Lithium-Drifted Germanium Detectors March 1979 EMSLLV053917 EMSL LV 053917 7120 Standard Methods Standard Methods for the Examination of Water and Wastewater, 19th Edition 1995 Standard Methods 7120 Standard Methods Standard Methods for the Examination of Water and Wastewater, 20th Edition 1998 Standard Methods 7120 Standard Methods Standard Methods for the Examination of Water and Wastewater, 21st Edition 2005 Standard Methods 7120 Standard Methods Standard Methods for the Examination of Water and Wastewater, 22nd Edition 2012 Standard Methods 7120 Standard Methods Standard Methods for the Examination of Water and Wastewater, 23rd Edition 2017 Standard Methods 7120 Standard Methods Standard Methods for the Examination of Water and Wastewater, 24th Edition 2023 Standard Methods 7500-1 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 17th Edition 1989 Standard Methods 7500-1 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 18th Edition 1992 Standard Methods 7500-1 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 19th Edition 1995 Standard Methods 7500-1 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 20th Edition 1998 Standard Methods 7500-1 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 21st Edition 2005 Standard Methods ------- Page 23 of 28 7500-1 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 22nd Edition 2012 Standard Methods 7500-1 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 23rd Edition 2017 Standard Methods 7500-1 B Standard Methods Standard Methods for the Examination of Water and Wastewater, 24th Edition 2023 Standard Methods 7500-1 C Standard Methods Standard Methods for the Examination of Water and Wastewater, 17th Edition 1989 Standard Methods 7500-1 C Standard Methods Standard Methods for the Examination of Water and Wastewater, 18th Edition 1992 Standard Methods 7500-1 C Standard Methods Standard Methods for the Examination of Water and Wastewater, 19th Edition 1995 Standard Methods 7500-1 C Standard Methods Standard Methods for the Examination of Water and Wastewater, 20th Edition 1998 Standard Methods 7500-1 C Standard Methods Standard Methods for the Examination of Water and Wastewater, 21st Edition 2005 Standard Methods 7500-1 C Standard Methods Standard Methods for the Examination of Water and Wastewater, 22nd Edition 2012 Standard Methods 7500-1 C Standard Methods Standard Methods for the Examination of Water and Wastewater, 23rd Edition 2017 Standard Methods 7500-1 C Standard Methods Standard Methods for the Examination of Water and Wastewater, 24th Edition 2023 Standard Methods 7500-1 D Standard Methods Standard Methods for the Examination of Water and Wastewater, 17th Edition 1989 Standard Methods 7500-1 D Standard Methods Standard Methods for the Examination of Water and Wastewater, 18th Edition 1992 Standard Methods ------- Page 24 of 28 7500-1 D Standard Methods Standard Methods for the Examination of Water and Wastewater, 19th Edition 1995 Standard Methods 7500-1 D Standard Methods Standard Methods for the Examination of Water and Wastewater, 20th Edition 1998 Standard Methods 7500-1 D Standard Methods Standard Methods for the Examination of Water and Wastewater, 21st Edition 2005 Standard Methods 7500-1 D Standard Methods Standard Methods for the Examination of Water and Wastewater, 22nd Edition 2012 Standard Methods 7500-1 D Standard Methods Standard Methods for the Examination of Water and Wastewater, 23rd Edition 2017 Standard Methods 7500-1 D Standard Methods Standard Methods for the Examination of Water and Wastewater, 24th Edition 2023 Standard Methods 7120-97 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 7500-1 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 7500-1 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 7500-1 D-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 2000 Standard Methods ------- Page 25 of 28 Subpart C of Part 141 are approved. Radioactive Strontium 89 and 90 Method Organization Reference Title Date EPA Publication Number Source of Method Sr-01 Dept. of Homeland Security In EML Procedures Manual, 27th Edition, Vol. 1, Department of Energy Report, HASL-300-ED.27- Vol. 1 1990 HASL-300-Ed. 27 Sr-01 Dept. of Homeland Security In EML Procedures Manual, 28th Edition, Vol. 1, Department of Energy Report, HASL-300 1997 HASL-300 Sr-02 Dept. of Homeland Security In EML Procedures Manual, 27th Edition, Vol. 1, Department of Energy Report, HASL-300-ED.27- Vol. 1 1990 HASL-300-Ed. 27 Sr-02 Dept. of Homeland Security In EML Procedures Manual, 28th Edition, Vol. 1, Department of Energy Report, HASL-300 1997 HASL-300 EPA 905.0 EPA In Prescribed Procedures for Measurement of Radioactivity in Drinking Water: Radioactive Strontium August 1980 EPA 600/4/80-032 EPA 600/4/80-032 EPA Sr-04 EPA In Radiochemistry Procedures Manual: Radiochemical Determination of Radiostrontium in Water, Sea Water, and other Aqueous Media June 1984 EPA 520/5-84-006 EPA 520/5-84-006 Page 29 in EPA In Interim Radiochemical Revised EPA 600/4-75-008 600/4-75-008 EPA 600/4- Methodology for Drinking Water: March 1976 75-008 Radioactive Strontium in Drinking Water Page 65 in EPA In Radiochemical Analytical March 1979 EMSLLV053917 EMSL LV 053917 EMSL LV Procedures for Analysis of 053917 Environmental Samples: Determination of Strontium-89 and Strontium-90 in Water, Vegetation, Soil, and Biological Tissue ------- Page 26 of 28 303 Standard Methods Standard Methods for the Examination of Water and Wastewater, 13th Edition 1971 Standard Methods 7500-Sr B Standard Methods Standard Methods for the Examination of Water and Wastewater, 17th Edition 1989 Standard Methods 7500-Sr B Standard Methods Standard Methods for the Examination of Water and Wastewater, 18th Edition 1992 Standard Methods 7500-Sr B Standard Methods Standard Methods for the Examination of Water and Wastewater, 19th Edition 1995 Standard Methods 7500-Sr B Standard Methods Standard Methods for the Examination of Water and Wastewater, 20th Edition 1998 Standard Methods 7500-Sr B Standard Methods Standard Methods for the Examination of Water and Wastewater, 21st Edition 2005 Standard Methods 7500-Sr B Standard Methods Standard Methods for the Examination of Water and Wastewater, 22nd Edition 2012 Standard Methods 7500-Sr B Standard Methods Standard Methods for the Examination of Water and Wastewater, 23rd Edition 2017 Standard Methods 7500-Sr B Standard Methods Standard Methods for the Examination of Water and Wastewater, 24th Edition 2023 Standard Methods 7500-Sr B- Standard Online version. Approval year is 2001 Standard Methods 01 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. R-1160-76 U.S. Geological Survey In Methods for the Determination of Radioactive Substances in Water and Fluvial Sediments, USGS Series: Techniques of Water- Resource Investigation. Report Number: 05-A5; by Thatcher, L.L., Janzer, V.J., and Edwards, K.W. 1977 USGS ------- Page 27 of 28 Tritium Method Organization Reference Title Date EPA Publication Number Source of Method D4107-91 ASTM International Standard Test Method for Tritium in Drinking Water 1991 ASTM International D4107-98 ASTM International Standard Test Method for Tritium in Drinking Water 1998 ASTM International D4107-08 ASTM International Standard Test Method for Tritium in Drinking Water 2008 ASTM International D4107-20 ASTM International Standard Test Method for Tritium in Drinking Water 2020 ASTM International EPA 906.0 EPA In Prescribed Procedures for Measurement of Radioactivity in Drinking Water: Tritium August 1980 EPA 600/4/80-032 EPA 600/4/80-032 EPA H-02 EPA In Radiochemistry Procedures Manual: Radiochemical Determination of Tritium in Water: Dioxane Method June 1984 EPA 520/5-84-006 EPA 520/5-84-006 Page 34 in EPA In Interim Radiochemical Revised EPA 600/4-75-008 600/4-75-008 EPA 600/4- Methodology for Drinking Water: March 1976 75-008 Tritium in Drinking Water Page 87 in EPA In Radiochemical Analytical March 1979 EMSLLV053917 EMSL LV 053917 EMSL LV Procedures for Analysis of 053917 Environmental Samples: Determination of Tritium in Water and Biological Tissue (Direct Method) 306 Standard Methods Standard Methods for the Examination of Water and Wastewater, 13th Edition 1971 Standard Methods 7500-3H B Standard Methods Standard Methods for the Examination of Water and Wastewater, 17th Edition 1989 Standard Methods 7500-3H B Standard Methods Standard Methods for the Examination of Water and Wastewater, 18th Edition 1992 Standard Methods 7500-3H B Standard Methods Standard Methods for the Examination of Water and Wastewater, 19th Edition 1995 Standard Methods ------- Page 28 of 28 7500-3H B Standard Methods Standard Methods for the Examination of Water and Wastewater, 20th Edition 1998 Standard Methods 7500-3H B Standard Methods Standard Methods for the Examination of Water and Wastewater, 21st Edition 2005 Standard Methods 7500-3H B Standard Methods Standard Methods for the Examination of Water and Wastewater, 22nd Edition 2012 Standard Methods 7500-3H B Standard Methods Standard Methods for the Examination of Water and Wastewater, 23rd Edition 2017 Standard Methods 7500-3H B Standard Methods Standard Methods for the Examination of Water and Wastewater, 24th Edition 2023 Standard Methods 7500-3H 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 R-1171-76 U.S. Geological Survey In Methods for the Determination of Radioactive Substances in Water and Fluvial Sediments, USGS Series: Techniques of Water- Resource Investigation. Report Number: 05-A5; by Thatcher, L.L., Janzer, V.J., and Edwards, K.W. 1977 USGS ------- |