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Moffett Field Isotope Laboratory Analytical Services

USGS Reston Stable Isotope Laboratory samples for tritium analysis by electrolytic enrichment and liquid scintillation counting should be submitted to the Moffett Field Isotope Laboratory.

Ship samples to:        

     Attn: Doug Choy        
     U.S. Geological Survey        
     350 N. Arkon Road        
     Moffett Field, CA 94035
     650-439-2796

USGS customers will need to fill out the Moffett Field QWDATA Compatible Submission Excel Form for each type of analysis (lab code). Please email the completed Submission Form to dchoy@usgs.gov with cc to mbyoung@usgs.gov. Samples cannot be processed until an electronic Sample Submission Form is received.

Lab CodeDetailsRequired Water
Vol/Bottle Size
LOD (1 σ) pCi/L
(TU)
FY25 Price
LSC11LSC only125 mL13
(4.1)
$181
LSC05Elec. enrich. of
100 mL and LSC
250 to 500 mL2.2
(0.69)
$259
LSC04Elec. enrich. of
200 mL and LSC
0.5 to 1 L1.3
(0.41)
$352
LSC14Elec. enrich. of
500 mL and LSC
1 L0.5
(0.16)
$469
 Elec. enrich. of
50 mL and LSC
125 mL10
(3.1)
Contact RSIL

Elec. enrich.: Electrolytic enrichment (water volume is reduced from initial volume to 9 mL by electrolysis in a chilled water bath); LSC: Liquid Scintillation Counting; TU: Tritium Units.

Last updated: January 31, 2025.

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