Paragraph 1 Monitoring for compliance with the indicative dose
(1)
A water undertaker may use reliable screening strategies to indicate the presence of radioactivity in water intended for human consumption.
(2)
The strategies may include screening for–
(a)
certain radionuclides or individual radionuclide; or
(b)
gross alpha activity or gross beta activity (where appropriate gross beta activity may be replaced by residual beta activity after subtraction of the K-40 activity concentration).