Technical Specification 6.12. a requires, in part, that each
high radiation area, in which the intensity of radiation is > 100 mrem/hr but < 1000 mrem/hr, measured at 30 cm from the radiation source or from any surface the radiation penetrates, shall be barricaded and conspicuously posted as a
high radiation area. Contrary to the above, on March 23, 2009, the licensee constructed
scaffolding that provided a potential access to the Filter Backwash Transfer Tank room that was not conspicuously posted or barricaded. Licensee evaluations performed after the event showed that the intensity of radiation was >100 mrem/hr but <1000 mrem/hr measured at 30 cm from the pipe surfaces in those areas. This finding was entered in the licensees corrective action program March 25, 2009 as
AR #327372. This finding is of very low safety significance because there was no evidence of unauthorized worker entry into the area and no unexpected /unintended radiation exposures to licensee personnel
