Gamma Emitting Isotopes – Non-Potable Water

Laboratory Fee Schedule
Procedure #: EZZ0124A
CPT: N/A

Synonym(s):	Gamma in Non-Potable Water
Requisition Form	G-22
Test Description	The determination of gamma emitting isotopes with energies between 59.5 keV and 1836 keV can be detected.
Pre-Approval Needed	N/A
Supplemental Information Required	N/A
Supplemental Form(s)	N/A
Performed on Specimens from (sources)	Environmental
Sample/Specimen Type for Testing	Non-potable water
Minimum Volume/Size Required	Hard or soft plastic; 1 gallon
Storage/Preservation Prior to Shipping	None - Sample must be submitted to the laboratory within 5 days of collection.
Transport Medium	N/A
Specimen Labeling	Label each bottle with a waterproof marker. Pre-printing labels is acceptable. Sample identification must match submission form.
Shipping and Specimen Handling Requirements	Sample must be submitted to the laboratory within 5 days of collection.
Method	DOE method Ga-01-R
Turn-around Time	Hold time for non-potable water samples is unregulated, but consideration is given for the half-life of the suspected isotopes. The target sample turnaround time is 90 days from date of receipt.
Interferences/Limitations	Due to short half-life of I-131, this method does not meet the required detection limit of 1.0 pCi/L.
Common Causes for Rejection	Insufficient quantity unacceptable specimen type or source improper shipping conditions expired media or collection container discrepancies between specimen label and submission form incomplete or missing submission form sample not received by the lab within 5 days of collection
Additional Information	Non-potable water samples requesting Iodine 131 must be analyzed by this method before they can be acidified for further testing.