Analytical Methods Approved for Drinking Water Co

Monitoring of RadionuclidesAnalysis for the following contaminants shall be conducted in accordance with the methods in the following table, or their eq

The methods for these contaminants are specified in 40 CFR 141.25 and Appendix A to Subpart C of Part 141. The monitori

40 CFR 141.26.

The CFR is the legal reference for approved methods and takes precedent over this table. The table should accurately reflect 

information published in 40 CFR 141. If you find discrepancies, please notify The Safe Drinking Water Hotline (800-426-479table.

Contaminant

Organization

Method Number Reference Title Date Source 

EPA Publication Number

Publication Order Number

Naturally Occurring Radionuclides

Gross alpha Natural uranium and thorium-230 are approved as gross alpha calibration standards for gross alpha with c

evaporation methods; americium-241 is approved with co-precipitation methods.

EPA EPA 00-02 Radiochemistry Procedures Manual December 

1987

EPA 520/5-84-006 PB 84-215581 National 

Service (

Standard Methods

7110 C Standard Methods for the Examination 

of Water and Wastewater, 18th Edition

1992 Standard 

Standard Methods

7110 C Standard Methods for the Examination 

of Water and Wastewater, 19th Edition

1995 Standard 

Standard Methods

7110 C Standard Methods for the Examination 

of Water and Wastewater, 20th Edition

1998 Standard 

Standard Methods

7110 C Standard Methods for the Examination 

of Water and Wastewater, 21st Edition

2005 Standard 

Standard Methods Online

7110 C-00 Online version of Standard Methods for 

the Examination of Water and Wastewater. Approval year by Standard Methods Committee is designated by last 2 digits. This is the only online version that is approved.

http://ww

Gross alpha and beta Natural uranium and thorium-230 are approved as gross alpha calibration standards for gross alpha with c

evaporation methods; americium-241 is approved with co-precipitation methods.

EPA EPA 00-01 Radiochemistry Procedures Manual December 

1987

EPA 520/5-84-006 PB 84-215581 National 

Service (

Revised June 2011 Approved Methods for Radionuclides - National Primary Drinking Water Regulations 
Contaminant

Organization

Method Number Reference Title Date Source 

EPA Publication Number

Publication Order Number

Naturally Occurring Radionuclides

Gross alpha and beta Natural uranium and thorium-230 are approved as gross alpha calibration standards for gross alpha with c

evaporation methods; americium-241 is approved with co-precipitation methods.

EPA EPA 900.0 Prescribed Procedures for Measurement 

of Radioactivity in Drinking Water

August 1980 EPA 600/4-80-032 PB 80-224744 http://ww

EPA Page 1 in EMSL 

LV 053917

Radiochemical Analytical Procedures for Analysis of Environmental Samples

March 1979 EMSL LV 053917 National 

Service (

EPA Page 1 in EPA 

600/4-75-008

Interim Radiochemical Methodology for Drinking Water

revised March 1976

EPA 600/4-75-008 PB 253258 National 

Service (

Standard Methods

302 Standard Methods for the Examination 

of Water and Wastewater, 13th Edition

1971 Standard 

Standard Methods

7110 B Standard Methods for the Examination 

of Water and Wastewater, 17th Edition

1989 Standard 

Standard Methods

7110 B Standard Methods for the Examination 

of Water and Wastewater, 18th Edition

1992 Standard 

Standard Methods

7110 B Standard Methods for the Examination 

of Water and Wastewater, 19th Edition

1995 Standard 

Standard Methods

7110 B Standard Methods for the Examination 

of Water and Wastewater, 20th Edition

1998 Standard 

Standard Methods

7110 B Standard Methods for the Examination 

of Water and Wastewater, 21st Edition

2005 Standard 

Standard Methods Online

7110 B-00 Online version of Standard Methods for 

the Examination of Water and Wastewater. Approval year by Standard Methods Committee is designated by last 2 digits. This is the only online version that is approved.

http://ww

Revised June 2011 Approved Methods for Radionuclides - National Primary Drinking Water Regulations 
Contaminant

Organization

Method Number Reference Title Date Source 

EPA Publication Number

Publication Order Number

Naturally Occurring Radionuclides

Gross alpha and beta Natural uranium and thorium-230 are approved as gross alpha calibration standards for gross alpha with c

evaporation methods; americium-241 is approved with co-precipitation methods.

U.S. Geological Survey

R-1120-76 Methods for the Determination of 

Radioactive Substances in Water and Fluvial Sediments, in USGS Series: Techniques of Water-Resource Investigation Report Number: 05-A5; by Thatcher, L.L., Janzer, V.J., and Edwards, K.W.

1977 05-A5 http://inf

Radium 226

ASTM International

D2460-07 Annual Book of ASTM Standards, Vol. 

11.02

http://ww

ASTM International

D2460-97 Annual Book of ASTM Standards, Vol. 

11.02

http://ww

ASTM International

D3454-05 Annual Book of ASTM Standards, Vol. 

11.02

http://ww

ASTM International

D3454-97 Annual Book of ASTM Standards, Vol. 

11.02

http://ww

Department of Homeland Security

Ra-04 EML Procedures Manual, 28th Edition, 

Vol. I, Department of Energy Report HASL-300

1997` PB97-162549 http://ww

EPA EPA 903.0 Prescribed Procedures for Measurement 

of Radioactivity in Drinking Water

August 1980 EPA 600/4-80-032 PB 80-224744 National 

Service (

EPA EPA 903.1 Prescribed Procedures for Measurement 

of Radioactivity in Drinking Water

August 1980 EPA 600/4-80-032 PB 80-224744 http://ww

EPA EPA Ra-03 Radiochemistry Procedures Manual December 

1987

EPA 520/5-84-006 PB 84-215581 National 

Service (

EPA EPA Ra-04 Radiochemistry Procedures Manual December 

1987

EPA 520/5-84-006 PB 84-215581 National 

Service (

Revised June 2011 Approved Methods for Radionuclides - National Primary Drinking Water Regulations 
Contaminant

Organization

Method Number Reference Title Date Source 

EPA Publication Number

Publication Order Number

Naturally Occurring Radionuclides

Radium 226

EPA Page 13 in EPA 

600/4-75-008

Interim Radiochemical Methodology for Drinking Water

revised March 1976

EPA 600/4-75-008 PB 253258 National 

Service (

EPA Page 16 in EPA 

600/4-75-008

Interim Radiochemical Methodology for Drinking Water

revised March 1976

EPA 600/4-75-008 PB 253258 National 

Service (

EPA Page 19 in 

EMSL LV 053917

Radiochemical Analytical Procedures for Analysis of Environmental Samples

March 1979 EMSL LV 053917 National 

Service (

Georgia Institute of Technology

GA 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

This method may be used to analyze for radium-226 and radium-228 in samples collected after January 1, 2005 to sa

radium-228 monitoring requirements specified at 40 CFR 141.26.

Georgia 

NY Department of Health

NY Determination of Ra-226 and Ra-228 

(Ra-02)

January 1980, Revised June 1982

RadiologResearch

Standard Methods

304 Standard Methods for the Examination 

of Water and Wastewater, 13th Edition

1971 Standard 

Standard Methods

305 Standard Methods for the Examination 

of Water and Wastewater, 13th Edition

1971 Standard 

Standard Methods

7500-Ra B Standard Methods for the Examination 

of Water and Wastewater, 17th Edition

1989 Standard 

Standard Methods

7500-Ra B Standard Methods for the Examination 

of Water and Wastewater, 18th Edition

1992 Standard 

Standard Methods

7500-Ra B Standard Methods for the Examination 

of Water and Wastewater, 19th Edition

1995 Standard 

Revised June 2011 Approved Methods for Radionuclides - National Primary Drinking Water Regulations 
Contaminant

Organization

Method Number Reference Title Date Source 

EPA Publication Number

Publication Order Number

Naturally Occurring Radionuclides

Radium 226

Standard Methods

7500-Ra B Standard Methods for the Examination 

of Water and Wastewater, 20th Edition

1998 Standard 

Standard Methods

7500-Ra B Standard Methods for the Examination 

of Water and Wastewater, 21st Edition

2005 Standard 

Standard Methods

7500-Ra C Standard Methods for the Examination 

of Water and Wastewater, 17th Edition

1989 Standard 

Standard Methods

7500-Ra C Standard Methods for the Examination 

of Water and Wastewater, 18th Edition

1992 Standard 

Standard Methods

7500-Ra C Standard Methods for the Examination 

of Water and Wastewater, 19th Edition

1995 Standard 

Standard Methods

7500-Ra C Standard Methods for the Examination 

of Water and Wastewater, 20th Edition

1998 Standard 

Standard Methods

7500-Ra C Standard Methods for the Examination 

of Water and Wastewater, 21st Edition

2005 Standard 

Standard Methods Online

7500-Ra B-01 Online version of Standard Methods for 

the Examination of Water and Wastewater. Approval year by Standard Methods Committee is designated by last 2 digits. This is the only online version that is approved.

http://ww

Standard Methods Online

7500-Ra C-01 Online version of Standard Methods for 

the Examination of Water and Wastewater. Approval year by Standard Methods Committee is designated by last 2 digits. This is the only online version that is approved.

http://ww

Revised June 2011 Approved Methods for Radionuclides - National Primary Drinking Water Regulations 
Contaminant

Organization

Method Number Reference Title Date Source 

EPA Publication Number

Publication Order Number

Naturally Occurring Radionuclides

Radium 226

U.S. Geological Survey

R-1140-76 Methods for the Determination of 

Radioactive Substances in Water and Fluvial Sediments, in USGS Series: Techniques of Water-Resource Investigation Report Number: 05-A5; by Thatcher, L.L., Janzer, V.J., and Edwards, K.W.

1977 05-A5 http://inf

U.S. Geological Survey

R-1141-76 Methods for the Determination of 

Radioactive Substances in Water and Fluvial Sediments, in USGS Series: Techniques of Water-Resource Investigation Report Number: 05-A5; by Thatcher, L.L., Janzer, V.J., and Edwards, K.W.

1977 05-A5 http://inf

Radium 228

Department of Homeland Security

Ra-05 EML Procedures Manual, 27th Edition, 

Vol. I, Department of Energy Report HASL-300-ED.27-VOL.1

1990 DE 91010178 National 

Service (

EPA EPA 904.0 Prescribed Procedures for Measurement 

of Radioactivity in Drinking Water

August 1980 EPA 600/4-80-032 PB 80-224744 National 

Service (

EPA EPA Ra-05 Radiochemistry Procedures Manual December 

1987

EPA 520/5-84-006 PB 84-215581 National 

Service (

EPA Page 19 in 

EMSL LV 053917

Radiochemical Analytical Procedures for Analysis of Environmental Samples

March 1979 EMSL LV 053917 National 

Service (

EPA Page 24 in EPA 

600/4-75-008

Interim Radiochemical Methodology for Drinking Water

revised March 1976

EPA 600/4-75-008 PB 253258 National 

Service (

Revised June 2011 Approved Methods for Radionuclides - National Primary Drinking Water Regulations 
Contaminant

Organization

Method Number Reference Title Date Source 

EPA Publication Number

Publication Order Number

Naturally Occurring Radionuclides

Radium 228

Georgia Institute of Technology

GA 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

This method may be used to analyze for radium-226 and radium-228 in samples collected after January 1, 2005 to sa

radium-228 monitoring requirements specified at 40 CFR 141.26.

Georgia 

NJ Department of Environmental Protection

NJ Determination of Ra-228 in Drinking 

Water

August 1980 State of N

Environm

NY Department of Health

NY Determination of Ra-226 and Ra-228 

(Ra-02)

January 1980, Revised June 1982

RadiologResearch

Standard Methods

7500-Ra D Standard Methods for the Examination 

of Water and Wastewater, 17th Edition

1989 Standard 

Standard Methods

7500-Ra D Standard Methods for the Examination 

of Water and Wastewater, 18th Edition

1992 Standard 

Standard Methods

7500-Ra D Standard Methods for the Examination 

of Water and Wastewater, 19th Edition

1995 Standard 

Standard Methods

7500-Ra D Standard Methods for the Examination 

of Water and Wastewater, 20th Edition

1998 Standard 

Standard Methods

7500-Ra D Standard Methods for the Examination 

of Water and Wastewater, 21st Edition

2005 Standard 

Standard Methods Online

7500-Ra D-01 Online version of Standard Methods for 

the Examination of Water and Wastewater. Approval year by Standard Methods Committee is designated by last 2 digits. This is the only online version that is approved.

http://ww

Revised June 2011 Approved Methods for Radionuclides - National Primary Drinking Water Regulations 
Contaminant

Organization

Method Number Reference Title Date Source 

EPA Publication Number

Publication Order Number

Naturally Occurring Radionuclides

Radium 228

U.S. Geological Survey

R-1142-76 Methods for the Determination of 

Radioactive Substances in Water and Fluvial Sediments, in USGS Series: Techniques of Water-Resource Investigation Report Number: 05-A5; by Thatcher, L.L., Janzer, V.J., and Edwards, K.W.

1977 05-A5 http://inf

Uranium If uranium (U) is determined by mass, a 0.67 pCi/ug of uranium conversion factor must be used. This con

1:1 activity ratio of U-234 and U-238 that is characteristic of naturally occurring uranium.

ASTM International

D2907-97 Annual Book of ASTM Standards, Vol. 

11.02

http://ww

ASTM International

D3972-02 Annual Book of ASTM Standards, Vol. 

11.02

http://ww

ASTM International

D3972-09 Annual Book of ASTM Standards, Vol. 

11.02

http://ww

ASTM International

D3972-97 Annual Book of ASTM Standards, Vol. 

11.02

http://ww

ASTM International

D5174-02 Annual Book of ASTM Standards, Vol. 

11.02

http://ww

ASTM International

D5174-07 Annual Book of ASTM Standards, Vol. 

11.02

http://ww

ASTM International

D5174-97 Annual Book of ASTM Standards, Vol. 

11.02

http://ww

ASTM International

D5673-03 Annual Book of ASTM Standards, Vol. 

11.02

http://ww

ASTM International

D5673-05 Annual Book of ASTM Standards, Vol. 

11.02

http://ww

Revised June 2011 Approved Methods for Radionuclides - National Primary Drinking Water Regulations 
Contaminant

Organization

Method Number Reference Title Date Source 

EPA Publication Number

Publication Order Number

Naturally Occurring Radionuclides

Uranium If uranium (U) is determined by mass, a 0.67 pCi/ug of uranium conversion factor must be used. This con

1:1 activity ratio of U-234 and U-238 that is characteristic of naturally occurring uranium.

Department of Homeland Security

U-02 EML Procedures Manual, 27th Edition, 

Vol. I, Department of Energy Report HASL-300-ED.27-VOL.1

1990 DE 91010178 National 

Service (

Department of Homeland Security

U-02 EML Procedures Manual, 28th Edition, 

Vol. I, Department of Energy Report HASL-300

1997` PB97-162549 http://ww

Department of Homeland Security

U-04 EML Procedures Manual, 27th Edition, 

Vol. I, Department of Energy Report HASL-300-ED.27-VOL.1

1990 DE 91010178 National 

Service (

Department of Homeland Security

U-04 EML Procedures Manual, 28th Edition, 

Vol. II, Department of Energy Report HASL-300

1997 PB97-162549 http://ww

EPA 200.8 Rev 5.4 In Methods for the Determination of 

Metals in Environmental Samples Supplement 1

May 1994 EPA/600/R-94/111 PB95-125472 http://ww

EPA EPA 00-07 Radiochemistry Procedures Manual December 

1987

EPA 520/5-84-006 PB 84-215581 National 

Service (

EPA EPA 908.0 Prescribed Procedures for Measurement 

of Radioactivity in Drinking Water

August 1980 EPA 600/4-80-032 PB 80-224744 National 

Service (

EPA EPA 908.1 Prescribed Procedures for Measurement 

of Radioactivity in Drinking Water

August 1980 EPA 600/4-80-032 PB 80-224744 National 

Service (

EPA Page 33 in 

EMSL LV 053917

Radiochemical Analytical Procedures for Analysis of Environmental Samples

March 1979 EMSL LV 053917 National 

Service (

Standard Methods

3125 Standard Methods for the Examination 

of Water and Wastewater, 20th Edition

1998 Standard 

Revised June 2011 Approved Methods for Radionuclides - National Primary Drinking Water Regulations 
Contaminant

Organization

Method Number Reference Title Date Source 

EPA Publication Number

Publication Order Number

Naturally Occurring Radionuclides

Uranium If uranium (U) is determined by mass, a 0.67 pCi/ug of uranium conversion factor must be used. This con

1:1 activity ratio of U-234 and U-238 that is characteristic of naturally occurring uranium.

Standard Methods

7500-U B Standard Methods for the Examination 

of Water and Wastewater, 17th Edition

1989 Standard 

Standard Methods

7500-U B Standard Methods for the Examination 

of Water and Wastewater, 18th Edition

1992 Standard 

Standard Methods

7500-U B Standard Methods for the Examination 

of Water and Wastewater, 19th Edition

1995 Standard 

Standard Methods

7500-U B Standard Methods for the Examination 

of Water and Wastewater, 20th Edition

1998 Standard 

Standard Methods

7500-U B Standard Methods for the Examination 

of Water and Wastewater, 21st Edition

2005 Standard 

Standard Methods

7500-U C Standard Methods for the Examination 

of Water and Wastewater, 17th Edition

1989 Standard 

Standard Methods

7500-U C Standard Methods for the Examination 

of Water and Wastewater, 18th Edition

1992 Standard 

Standard Methods

7500-U C Standard Methods for the Examination 

of Water and Wastewater, 19th Edition

1995 Standard 

Standard Methods

7500-U C Standard Methods for the Examination 

of Water and Wastewater, 20th Edition

1998 Standard 

Standard Methods

7500-U C Standard Methods for the Examination 

of Water and Wastewater, 21st Edition

2005 Standard 

Standard Methods Online

7500-U B-00 Online version of Standard Methods for 

the Examination of Water and Wastewater. Approval year by Standard Methods Committee is designated by last 2 digits. This is the only online version that is approved.

http://ww

Revised June 2011 Approved Methods for Radionuclides - National Primary Drinking Water Regulations 
Contaminant

Organization

Method Number Reference Title Date Source 

EPA Publication Number

Publication Order Number

Naturally Occurring Radionuclides

Uranium If uranium (U) is determined by mass, a 0.67 pCi/ug of uranium conversion factor must be used. This con

1:1 activity ratio of U-234 and U-238 that is characteristic of naturally occurring uranium.

Standard Methods Online

7500-U C-00 Online version of Standard Methods for 

the Examination of Water and Wastewater. Approval year by Standard Methods Committee is designated by last 2 digits. This is the only online version that is approved.

http://ww

U.S. Geological Survey

R-1180-76 Methods for the Determination of 

Radioactive Substances in Water and Fluvial Sediments, in USGS Series: Techniques of Water-Resource Investigation Report Number: 05-A5; by Thatcher, L.L., Janzer, V.J., and Edwards, K.W.

1977 05-A5 http://inf

U.S. Geological Survey

R-1181-76 Methods for the Determination of 

Radioactive Substances in Water and Fluvial Sediments, in USGS Series: Techniques of Water-Resource Investigation Report Number: 05-A5; by Thatcher, L.L., Janzer, V.J., and Edwards, K.W.

1977 05-A5 http://inf

U.S. Geological Survey

R-1182-76 Methods for the Determination of 

Radioactive Substances in Water and Fluvial Sediments, in USGS Series: Techniques of Water-Resource Investigation Report Number: 05-A5; by Thatcher, L.L., Janzer, V.J., and Edwards, K.W.

1977 05-A5 http://inf

Man-made Radionuclides

Gamma Emitters

ASTM International

D3649-06 Annual Book of ASTM Standards, Vol. 

11.02

http://ww

Revised June 2011 Approved Methods for Radionuclides - National Primary Drinking Water Regulations 
Contaminant

Organization

Method Number Reference Title Date Source 

EPA Publication Number

Publication Order Number

Man-made Radionuclides

Gamma Emitters

ASTM International

D3649-91 Annual Book of ASTM Standards, Vol. 

11.02

ASTM In

ASTM International

D3649-98a Annual Book of ASTM Standards, Vol. 

11.02

http://ww

ASTM International

D4785-00a Annual Book of ASTM Standards, Vol. 

11.02

http://ww

ASTM International

D4785-08 Annual Book of ASTM Standards, Vol. 

11.02

http://ww

ASTM International

D4785-93 Annual Book of ASTM Standards, Vol. 

11.02

ASTM In

Department of Homeland Security

4.5.2.3 EML Procedures Manual, 27th Edition, 

Vol. I, Department of Energy Report HASL-300-ED.27-VOL.1

1990 DE 91010178 National 

Service (

Department of Homeland Security

Ga-01-R EML Procedures Manual, 28th Edition, 

Vol. I, Department of Energy Report HASL-300

1997` PB97-162549 http://ww

EPA EPA 901.0 Prescribed Procedures for Measurement 

of Radioactivity in Drinking Water

August 1980 EPA 600/4-80-032 PB 80-224744 National 

Service (

EPA EPA 901.1 Prescribed Procedures for Measurement 

of Radioactivity in Drinking Water

August 1980 EPA 600/4-80-032 PB 80-224744 National 

Service (

EPA EPA 902.0 Prescribed Procedures for Measurement 

of Radioactivity in Drinking Water

August 1980 EPA 600/4-80-032 PB 80-224744 National 

Service (

EPA Page 92 in 

EMSL LV 053917

Radiochemical Analytical Procedures for Analysis of Environmental Samples

March 1979 EMSL LV 053917 National 

Service (

Standard Methods

7120 Standard Methods for the Examination 

of Water and Wastewater, 19th Edition

1995 Standard 

Revised June 2011 Approved Methods for Radionuclides - National Primary Drinking Water Regulations 
Contaminant

Organization

Method Number Reference Title Date Source 

EPA Publication Number

Publication Order Number

Man-made Radionuclides

Gamma Emitters

Standard Methods

7120 Standard Methods for the Examination 

of Water and Wastewater, 20th Edition

1998 Standard 

Standard Methods

7120 Standard Methods for the Examination 

of Water and Wastewater, 21st Edition

2005 Standard 

Standard Methods

7500-Cs B Standard Methods for the Examination 

of Water and Wastewater, 17th Edition

1989 Standard 

Standard Methods

7500-Cs B Standard Methods for the Examination 

of Water and Wastewater, 18th Edition

1992 Standard 

Standard Methods

7500-Cs B Standard Methods for the Examination 

of Water and Wastewater, 19th Edition

1995 Standard 

Standard Methods

7500-Cs B Standard Methods for the Examination 

of Water and Wastewater, 20th Edition

1998 Standard 

Standard Methods

7500-Cs B Standard Methods for the Examination 

of Water and Wastewater, 21st Edition

2005 Standard 

Standard Methods

7500-I B Standard Methods for the Examination 

of Water and Wastewater, 17th Edition

1989 Standard 

Standard Methods

7500-I B Standard Methods for the Examination 

of Water and Wastewater, 18th Edition

1992 Standard 

Standard Methods

7500-I B Standard Methods for the Examination 

of Water and Wastewater, 19th Edition

1995 Standard 

Standard Methods

7500-I B Standard Methods for the Examination 

of Water and Wastewater, 20th Edition

1998 Standard 

Standard Methods

7500-I B Standard Methods for the Examination 

of Water and Wastewater, 21st Edition

2005 Standard 

Revised June 2011 Approved Methods for Radionuclides - National Primary Drinking Water Regulations 
Contaminant

Organization

Method Number Reference Title Date Source 

EPA Publication Number

Publication Order Number

Man-made Radionuclides

Gamma Emitters

Standard Methods Online

7120-97 Online version of Standard Methods for 

the Examination of Water and Wastewater. Approval year by Standard Methods Committee is designated by last 2 digits. This is the only online version that is approved.

http://ww

Standard Methods Online

7500-Cs B-00 Online version of Standard Methods for 

the Examination of Water and Wastewater. Approval year by Standard Methods Committee is designated by last 2 digits. This is the only online version that is approved.

http://ww

Standard Methods Online

7500-I B-00 Online version of Standard Methods for 

the Examination of Water and Wastewater. Approval year by Standard Methods Committee is designated by last 2 digits. This is the only online version that is approved.

http://ww

U.S. Geological Survey

R-1110-76 Methods for the Determination of 

Radioactive Substances in Water and Fluvial Sediments, in USGS Series: Techniques of Water-Resource Investigation Report Number: 05-A5; by Thatcher, L.L., Janzer, V.J., and Edwards, K.W.

1977 05-A5 http://inf

Radioactive Cesium

ASTM International

D2459-72 Annual Book of ASTM Standards, Vol. 

11.02

ASTM In

ASTM International

D3649-06 Annual Book of ASTM Standards, Vol. 

11.02

http://ww

ASTM International

D3649-91 Annual Book of ASTM Standards, Vol. 

11.02

ASTM In

Revised June 2011 Approved Methods for Radionuclides - National Primary Drinking Water Regulations 
Contaminant

Organization

Method Number Reference Title Date Source 

EPA Publication Number

Publication Order Number

Man-made Radionuclides

Radioactive Cesium

ASTM International

D3649-98a Annual Book of ASTM Standards, Vol. 

11.02

http://ww

Department of Homeland Security

4.5.2.3 EML Procedures Manual, 27th Edition, 

Vol. I, Department of Energy Report HASL-300-ED.27-VOL.1

1990 DE 91010178 National 

Service (

Department of Homeland Security

Ga-01-R EML Procedures Manual, 28th Edition, 

Vol. I, Department of Energy Report HASL-300

1997` PB97-162549 http://ww

EPA EPA 901.0 Prescribed Procedures for Measurement 

of Radioactivity in Drinking Water

August 1980 EPA 600/4-80-032 PB 80-224744 National 

Service (

EPA EPA 901.1 Prescribed Procedures for Measurement 

of Radioactivity in Drinking Water

August 1980 EPA 600/4-80-032 PB 80-224744 National 

Service (

EPA Page 4 in EPA 

600/4-75-008

Interim Radiochemical Methodology for Drinking Water

revised March 1976

EPA 600/4-75-008 PB 253258 National 

Service (

EPA Page 92 in 

EMSL LV 053917

Radiochemical Analytical Procedures for Analysis of Environmental Samples

March 1979 EMSL LV 053917 National 

Service (

Standard Methods

7120 Standard Methods for the Examination 

of Water and Wastewater, 19th Edition

1995 Standard 

Standard Methods

7120 Standard Methods for the Examination 

of Water and Wastewater, 20th Edition

1998 Standard 

Standard Methods

7120 Standard Methods for the Examination 

of Water and Wastewater, 21st Edition

2005 Standard 

Standard Methods

7500-Cs B Standard Methods for the Examination 

of Water and Wastewater, 17th Edition

1989 Standard 

Standard Methods

7500-Cs B Standard Methods for the Examination 

of Water and Wastewater, 18th Edition

1992 Standard 

Revised June 2011 Approved Methods for Radionuclides - National Primary Drinking Water Regulations 
Contaminant

Organization

Method Number Reference Title Date Source 

EPA Publication Number

Publication Order Number

Man-made Radionuclides

Radioactive Cesium

Standard Methods

7500-Cs B Standard Methods for the Examination 

of Water and Wastewater, 19th Edition

1995 Standard 

Standard Methods

7500-Cs B Standard Methods for the Examination 

of Water and Wastewater, 20th Edition

1998 Standard 

Standard Methods

7500-Cs B Standard Methods for the Examination 

of Water and Wastewater, 21st Edition

2005 Standard 

Standard Methods Online

7120-97 Online version of Standard Methods for 

the Examination of Water and Wastewater. Approval year by Standard Methods Committee is designated by last 2 digits. This is the only online version that is approved.

http://ww

Standard Methods Online

7500-Cs B-00 Online version of Standard Methods for 

the Examination of Water and Wastewater. Approval year by Standard Methods Committee is designated by last 2 digits. This is the only online version that is approved.

http://ww

U.S. Geological Survey

R-1110-76 Methods for the Determination of 

Radioactive Substances in Water and Fluvial Sediments, in USGS Series: Techniques of Water-Resource Investigation Report Number: 05-A5; by Thatcher, L.L., Janzer, V.J., and Edwards, K.W.

1977 05-A5 http://inf

U.S. Geological Survey

R-1111-76 Methods for the Determination of 

Radioactive Substances in Water and Fluvial Sediments, in USGS Series: Techniques of Water-Resource Investigation Report Number: 05-A5; by Thatcher, L.L., Janzer, V.J., and Edwards, K.W.

1977 05-A5 http://inf

Revised June 2011 Approved Methods for Radionuclides - National Primary Drinking Water Regulations 
Contaminant

Organization

Method Number Reference Title Date Source 

EPA Publication Number

Publication Order Number

Man-made Radionuclides

Radioactive Iodine

ASTM International

D3649-06 Annual Book of ASTM Standards, Vol. 

11.02

http://ww

ASTM International

D3649-91 Annual Book of ASTM Standards, Vol. 

11.02

ASTM In

ASTM International

D3649-98a Annual Book of ASTM Standards, Vol. 

11.02

http://ww

ASTM International

D4785-00a Annual Book of ASTM Standards, Vol. 

11.02

http://ww

ASTM International

D4785-08 Annual Book of ASTM Standards, Vol. 

11.02

http://ww

ASTM International

D4785-93 Annual Book of ASTM Standards, Vol. 

11.02

ASTM In

Department of Homeland Security

4.5.2.3 EML Procedures Manual, 27th Edition, 

Vol. I, Department of Energy Report HASL-300-ED.27-VOL.1

1990 DE 91010178 National 

Service (

Department of Homeland Security

Ga-01-R EML Procedures Manual, 28th Edition, 

Vol. I, Department of Energy Report HASL-300

1997` PB97-162549 http://ww

EPA EPA 901.1 Prescribed Procedures for Measurement 

of Radioactivity in Drinking Water

August 1980 EPA 600/4-80-032 PB 80-224744 National 

Service (

EPA EPA 902.0 Prescribed Procedures for Measurement 

of Radioactivity in Drinking Water

August 1980 EPA 600/4-80-032 PB 80-224744 National 

Service (

EPA Page 6 in EPA 

600/4-75-008

Interim Radiochemical Methodology for Drinking Water

revised March 1976

EPA 600/4-75-008 PB 253258 National 

Service (

EPA Page 9 in EPA 

600/4-75-008

Interim Radiochemical Methodology for Drinking Water

revised March 1976

EPA 600/4-75-008 PB 253258 National 

Service (

Revised June 2011 Approved Methods for Radionuclides - National Primary Drinking Water Regulations 
Contaminant

Organization

Method Number Reference Title Date Source 

EPA Publication Number

Publication Order Number

Man-made Radionuclides

Radioactive Iodine

EPA Page 92 in 

EMSL LV 053917

Radiochemical Analytical Procedures for Analysis of Environmental Samples

March 1979 EMSL LV 053917 National 

Service (

Standard Methods

7120 Standard Methods for the Examination 

of Water and Wastewater, 19th Edition

1995 Standard 

Standard Methods

7120 Standard Methods for the Examination 

of Water and Wastewater, 20th Edition

1998 Standard 

Standard Methods

7120 Standard Methods for the Examination 

of Water and Wastewater, 21st Edition

2005 Standard 

Standard Methods

7500-I B Standard Methods for the Examination 

of Water and Wastewater, 17th Edition

1989 Standard 

Standard Methods

7500-I B Standard Methods for the Examination 

of Water and Wastewater, 18th Edition

1992 Standard 

Standard Methods

7500-I B Standard Methods for the Examination 

of Water and Wastewater, 19th Edition

1995 Standard 

Standard Methods

7500-I B Standard Methods for the Examination 

of Water and Wastewater, 20th Edition

1998 Standard 

Standard Methods

7500-I B Standard Methods for the Examination 

of Water and Wastewater, 21st Edition

2005 Standard 

Standard Methods

7500-I C Standard Methods for the Examination 

of Water and Wastewater, 17th Edition

1989 Standard 

Standard Methods

7500-I C Standard Methods for the Examination 

of Water and Wastewater, 18th Edition

1992 Standard 

Standard Methods

7500-I C Standard Methods for the Examination 

of Water and Wastewater, 19th Edition

1995 Standard 

Revised June 2011 Approved Methods for Radionuclides - National Primary Drinking Water Regulations 
Contaminant

Organization

Method Number Reference Title Date Source 

EPA Publication Number

Publication Order Number

Man-made Radionuclides

Radioactive Iodine

Standard Methods

7500-I C Standard Methods for the Examination 

of Water and Wastewater, 20th Edition

1998 Standard 

Standard Methods

7500-I C Standard Methods for the Examination 

of Water and Wastewater, 21st Edition

2005 Standard 

Standard Methods

7500-I D Standard Methods for the Examination 

of Water and Wastewater, 17th Edition

1989 Standard 

Standard Methods

7500-I D Standard Methods for the Examination 

of Water and Wastewater, 18th Edition

1992 Standard 

Standard Methods

7500-I D Standard Methods for the Examination 

of Water and Wastewater, 19th Edition

1995 Standard 

Standard Methods

7500-I D Standard Methods for the Examination 

of Water and Wastewater, 20th Edition

1998 Standard 

Standard Methods

7500-I D Standard Methods for the Examination 

of Water and Wastewater, 21st Edition

2005 Standard 

Standard Methods Online

7120-97 Online version of Standard Methods for 

the Examination of Water and Wastewater. Approval year by Standard Methods Committee is designated by last 2 digits. This is the only online version that is approved.

http://ww

Standard Methods Online

7500-I B-00 Online version of Standard Methods for 

the Examination of Water and Wastewater. Approval year by Standard Methods Committee is designated by last 2 digits. This is the only online version that is approved.

http://ww

Revised June 2011 Approved Methods for Radionuclides - National Primary Drinking Water Regulations 
Contaminant

Organization

Method Number Reference Title Date Source 

EPA Publication Number

Publication Order Number

Man-made Radionuclides

Radioactive Iodine

Standard Methods Online

7500-I C-00 Online version of Standard Methods for 

the Examination of Water and Wastewater. Approval year by Standard Methods Committee is designated by last 2 digits. This is the only online version that is approved.

http://ww

Standard Methods Online

7500-I D-00 Online version of Standard Methods for 

the Examination of Water and Wastewater. Approval year by Standard Methods Committee is designated by last 2 digits. This is the only online version that is approved.

http://ww

Radioactive Strontium 89 and 90

Department of Homeland Security

Sr-01 EML Procedures Manual, 27th Edition, 

Vol. I, Department of Energy Report HASL-300-ED.27-VOL.1

1990 DE 91010178 National 

Service (

Department of Homeland Security

Sr-01 EML Procedures Manual, 28th Edition, 

Vol. II, Department of Energy Report HASL-300

1997 PB97-162549 http://ww

Department of Homeland Security

Sr-02 EML Procedures Manual, 27th Edition, 

Vol. I, Department of Energy Report HASL-300-ED.27-VOL.1

1990 DE 91010178 National 

Service (

Department of Homeland Security

Sr-02 EML Procedures Manual, 28th Edition, 

Vol. II, Department of Energy Report HASL-300

1997 PB97-162549 http://ww

EPA EPA 905.0 Prescribed Procedures for Measurement 

of Radioactivity in Drinking Water

August 1980 EPA 600/4-80-032 PB 80-224744 National 

Service (

EPA EPA Sr-04 Radiochemistry Procedures Manual December 

1987

EPA 520/5-84-006 PB 84-215581 National 

Service (

Revised June 2011 Approved Methods for Radionuclides - National Primary Drinking Water Regulations 
Contaminant

Organization

Method Number Reference Title Date Source 

EPA Publication Number

Publication Order Number

Man-made Radionuclides

Radioactive Strontium 89 and 90

EPA Page 29 in EPA 

600/4-75-008

Interim Radiochemical Methodology for Drinking Water

revised March 1976

EPA 600/4-75-008 PB 253258 National 

Service (

EPA Page 65 in 

EMSL LV 053917

Radiochemical Analytical Procedures for Analysis of Environmental Samples

March 1979 EMSL LV 053917 National 

Service (

Standard Methods

303 Standard Methods for the Examination 

of Water and Wastewater, 13th Edition

1971 Standard 

Standard Methods

7500-Sr B Standard Methods for the Examination 

of Water and Wastewater, 17th Edition

1989 Standard 

Standard Methods

7500-Sr B Standard Methods for the Examination 

of Water and Wastewater, 18th Edition

1992 Standard 

Standard Methods

7500-Sr B Standard Methods for the Examination 

of Water and Wastewater, 19th Edition

1995 Standard 

Standard Methods

7500-Sr B Standard Methods for the Examination 

of Water and Wastewater, 20th Edition

1998 Standard 

Standard Methods

7500-Sr B Standard Methods for the Examination 

of Water and Wastewater, 21st Edition

2005 Standard 

Standard Methods Online

7500-Sr B-01 Online version of Standard Methods for 

the Examination of Water and Wastewater. Approval year by Standard Methods Committee is designated by last 2 digits. This is the only online version that is approved.

http://ww

U.S. Geological Survey

R-1160-76 Methods for the Determination of 

Radioactive Substances in Water and Fluvial Sediments, in USGS Series: Techniques of Water-Resource Investigation Report Number: 05-A5; by Thatcher, L.L., Janzer, V.J., and Edwards, K.W.

1977 05-A5 http://inf

Revised June 2011 Approved Methods for Radionuclides - National Primary Drinking Water Regulations 
Contaminant

Organization

Method Number Reference Title Date Source 

EPA Publication Number

Publication Order Number

Man-made Radionuclides

Tritium

ASTM International

D4107-08 Annual Book of ASTM Standards, Vol. 

11.02

http://ww

ASTM International

D4107-91 Annual Book of ASTM Standards, Vol. 

11.02

ASTM In

ASTM International

D4107-98 (Reapproved 2002)

Annual Book of ASTM Standards, Vol. 11.02

http://ww

EPA EPA 906.0 Prescribed Procedures for Measurement 

of Radioactivity in Drinking Water

August 1980 EPA 600/4-80-032 PB 80-224744 National 

Service (

EPA EPA H-02 Radiochemistry Procedures Manual December 

1987

EPA 520/5-84-006 PB 84-215581 National 

Service (

EPA Page 34 in EPA 

600/4-75-008

Interim Radiochemical Methodology for Drinking Water

revised March 1976

EPA 600/4-75-008 PB 253258 National 

Service (

EPA Page 87 in 

EMSL LV 053917

Radiochemical Analytical Procedures for Analysis of Environmental Samples

March 1979 EMSL LV 053917 National 

Service (

Standard Methods

306 Standard Methods for the Examination 

of Water and Wastewater, 13th Edition

1971 Standard 

Standard Methods

7500-3H B Standard Methods for the Examination 

of Water and Wastewater, 17th Edition

1989 Standard 

Standard Methods

7500-3H B Standard Methods for the Examination 

of Water and Wastewater, 18th Edition

1992 Standard 

Standard Methods

7500-3H B Standard Methods for the Examination 

of Water and Wastewater, 19th Edition

1995 Standard 

Standard Methods

7500-3H B Standard Methods for the Examination 

of Water and Wastewater, 20th Edition

1998 Standard 

Revised June 2011 Approved Methods for Radionuclides - National Primary Drinking Water Regulations 
Contaminant

Organization

Method Number Reference Title Date Source 

EPA Publication Number

Publication Order Number

Man-made Radionuclides

Tritium

Standard Methods

7500-3H B Standard Methods for the Examination 

of Water and Wastewater, 21st Edition

2005 Standard 

Standard Methods Online

7500-3H B-00 Online version of Standard Methods for 

the Examination of Water and Wastewater. Approval year by Standard Methods Committee is designated by last 2 digits. This is the only online version that is approved.

http://ww

U.S. Geological Survey

R-1171-76 Methods for the Determination of 

Radioactive Substances in Water and Fluvial Sediments, in USGS Series: Techniques of Water-Resource Investigation Report Number: 05-A5; by Thatcher, L.L., Janzer, V.J., and Edwards, K.W.

1977 05-A5 http://inf

Contact information for methods that are not available on the Internet are summarized in the report 

of Approved Analytical Methods for National Drinking Water Regulations."

Revised June 2011 Approved Methods for Radionuclides - National Primary Drinking Water Regulations