Gross Alpha or Gross Beta – Drinking Water
|Gross Alpha or Gross Beta in Water
|The determination of gross alpha or gross beta particle activities in drinking water samples.
|Supplemental Information Required
|Performed on Specimens from (sources)
|Sample/Specimen Type for Testing
|Potable water, non-potable water
|Minimum Volume/Size Required
|Hard or soft plastic; 1 gallon + 1 liter
|Storage/Preservation Prior to Shipping
|None - Sample must be submitted to the laboratory within 5 days of collection.
|Label each bottle with a water proof marker. Pre-printing labels is acceptable. Must match information on submission form.
|Shipping and Specimen Handling Requirements
|Sample must be submitted to the laboratory within 5 days of collection.
|Sample must be analyzed within 180 days of sample collection. The target sample turnaround time is 120 days from date of receipt.
|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
All radiochemical drinking water samples are analyzed for gross alpha (4002), gross beta (4100), radium 228 (4030) and uranium mass. If the combined gross alpha and radium 228 radioactivity exceeds 5 pCi/L, then radium 226 is also analyzed.
If gross beta radioactivity exceeds 50 pCi/L, then the Beta radiochemicals group is scheduled for collection and analysis.