Five Hanford employees who resigned rather than take a drug test are back at work at Hanford.
However, four others who failed a drug test have lost their jobs.
A bag containing marijuana was found Aug. 8 on the floor of an S.M. Stoller meeting room at Hanford's Environmental Restoration Disposal Facility.
S.M. Stoller, which operates the landfill for low-level radioactive waste, required all 108 of its employees to have drug tests, according to the Washington Closure Hanford subcontractor.
Six resigned, although one apparently resigned for other reasons than the drug test, said Brian Mathis, project manager for Stoller.
The five employees were returned to Hanford by their union and subsequently passed a drug test. However, Washington Closure described its policy earlier as allowing some employees to continue working in specialized circumstances if they pass a drug test, enter treatment and agree to random drug tests.
Workers who failed the drug test are not expected to be allowed to return to work. Most, but not all, drug tests have been completed. Only Stoller employees were tested.