To address the lack of controls that allowed the falsification of gamma gamma logging testing data by Technician A and the engineer, we recommend that Caltrans implement a policy to ensure that engineers perform analyses on properly collected data and do not misrepresent gamma gamma logging test results. (See I2009-0640, p. 24)
Caltrans implemented a policy to ensure that when engineers perform gamma gamma logging test analyses, they perform their analyses on properly collected data and do not misrepresent gamma gamma logging test results. Under this policy, when a gamma gamma logging test produces null value or zero count results, the test must be performed again. The branch conducted workshops with its staff to discuss this policy.