GrossAlphaAndBeta

Synonym(s):

Gross Alpha and Gross Beta in Water

Requisition Form

G-22

Test Description

The determination of gross alpha and gross beta particle activities in drinking water samples.

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

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.

Transport Medium

N/A

Specimen Labeling

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.

Method

EPA 900.0

Turn-around Time

Sample must be analyzed within 180 days of sample collection. The target sample turnaround time is 120 days from date of receipt.

Interferences/Limitations

N/A

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

Additional Information

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.