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How do I interpret the 48-hour rapid gross alpha testing results?

April 26, 2017Alpha gross interpret rapid results Testing

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How do I interpret the 48-hour rapid gross alpha testing results?

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Gross alpha particle activity in drinking water is measured in the standard unit of picocuries per liter (pCi/l). The State and Federal Maximum Contaminant Level (MCL) standard for gross alpha particle activity in drinking water is 15 pCi/l. The 48-hour rapid gross alpha test does require a second gross alpha particle activity count to be conducted to determine if there is an exceedance of the MCL only if the first count is greater than 5 pCi/l.

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A7: Gross alpha particle activity in drinking water is measured in the standard unit of picocuries per liter (pCi/l). The State and Federal Maximum Contaminant Level (MCL) standard for gross alpha particle activity in drinking water is 15 pCi/l. The 48-hour rapid gross alpha test does require a second gross alpha particle activity count to be conducted to determine if there is an exceedance of the MCL only if the first count is greater than 5 pCi/l.