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Drinking Water - EPA SDWA; 40 CFR Part 141
Method Isotopes Description
EPA 900.0 screen Gross Alpha Radioactivity
EPA 900.0 screen Gross Beta Radioactivity
EPA 900.0 screen Gross Alpha/Beta Radioactivity
EPA 903.0 (1) Radium Total Alpha-Emitting Radium Isotopes
EPA 903.1 Ra-226 Radium-226; Radon Emanation
EPA 904.0 Ra-228 Radium-228
EPA 905.0 Sr-90 Radioactive Strontium
EPA 906.0 H-3 Tritium
EPA 908.0 (2) Uranium Uranium - Radiochemical Method
ASTM D5174 Uranium Uranium - KPA
SM 7500-Rn Rn-222 Radon - Liquid Scintillation Method
(1) This method is a screen for the total concentration of soluble alpha-emitting isotopes of Radium, namely Ra-223, Ra-224 and Ra-226. It does not distinguish the individual isotopes.
(2) This method is a screen for the total concentration of alpha-emitting isotopes of Uranium, namely U-234 and U-238. It does not distinguish the individual isotopes.
Wastewater - EPA CWA; 40 CFR Part 136
Method Isotopes Description
EPA 900.0 screen Gross Alpha/Beta Radioactivity
EPA 903.0 (1) Radium Total Alpha-Emitting Radium Isotopes
EPA 903.1 Ra-226 Radium-226; Radon Emanation
(1) This method is a screen for the total concentration of soluble alpha-emitting isotopes of Radium, namely Ra-223, Ra-224 and Ra-226. It does not distinguish the individual isotopes.
Gas Flow Proportional Measurements
Method Isotopes Description
PGH-R-001-A screen
 
Gross Alpha Radioactivity
PGH-R-001-A screen Gross Alpha Radioactivity (co-precipitation)
PGH-R-001-A screen
 
Gross Beta Radioactivity
PGH-R-001-A screen Gross Alpha and Beta Radioactivity
 
RA-320 Sr-89 Strontium-89
RA-320 Sr-90 Strontium-90
RA-320 Sr-90 Strontium-90
RA-320 Sr-89/90 Strontium-89 and Strontium-90
RA-320 Sr Total Radioactive Strontium
A-529 Ra-228 Radium-228
Liquid Scintillation Measurements
Method Isotopes Description
RA-410 H-3 Tritium
RA-420 C-14 Carbon-14
RA-440 Fe-55 Iron-55
RA-430 Ni-63 Nickel-63
RA-450 Tc-99 Technetium-99
RA-460 Pu-241 Plutonium-241
Alpha Spectroscopy
Method Isotopes Description
PGH-R-008A (1) Pu-238, 239/240 Plutonium-238, 239/240
PGH-R-008A Pu-242 Plutonium-242
PGH-R-008A Am-241 Americium-241
PGH-R-008A Th-228, 230, 232 Thorium-228, 230, 232
PGH-R-008A U-234, 235, 238 Uranium-234, 235, 238
PGH-R-008A (2) Cm-242, 243/244 Curium-242, 243/244
(1) There is no manner of distinguishing between the Pu-239 and Pu-240 isotopes. The result is the sum of the two isotopes.
(2) There is no manner of distinguishing between the Cm-243 and Cm-244 isotopes. The result is the sum of the two isotopes.
Gamma Spectroscopy
Method Isotopes Description
PGH-R-023A Various Gamma (photon) emitters
PGH-R-023A (1) Ra-226, Ra-228 Radium-226 & Ra-228 via In-Growth and Measurement of Progeny
A-526 I-129 Iodine-129; Low-energy photon spectroscopy
(1) Solid samples are placed into a can and sealed to prevent the escape of gasses. Daughter products of Ra-226 (Rn-222, Pb-214, Bi-214) are trapped. In-growth occurs until equilibrium is achieved (21 days). Pb-214 and Bi-214, assumed to be in equilibrium with the Ra-226 parent are measured and reported. Ac-228, assumed to be in equilibrium with the Ra-228 is measured and reported.
Sample Preparation
Method Isotopes Description
0010 N/A Acid Digestion
A-538 N/A Drying/Grinding/Sieving
N/A N/A Filtration (0.45 mm)
A-556 N/A Pyrosulfate Dissolution
N/A N/A Rock Pulverization
EPA ILMO5.2 N/A Percent Solids

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