OAR 333-120-0200: Surveys and Monitoring: General

(1) Each licensee or registrant must make or cause to be made, surveys that: (a) Are necessary for the licensee or registrant to comply with the rules in this division; and (b) Are reasonable under the circumstances to evaluate: (A) The magnitude and extent of radiation levels; and (B) The concentrations or quantities of radioactive material; and (C) The potential radiological hazards that could be present. (2) Notwithstanding OAR 333-120-0620, records from surveys describing the location and amount of subsurface residual radioactivity identified at the site must be kept with records important for decommissioning. Records must be retained in accordance with 10 CFR parts 30.35(g), 40.36(f), 50.75(g), 70.25(g) or 72.30(d) as applicable. (3) The licensee or registrant must ensure that instruments and equipment used for quantitative radiation measurements (such as dose rate and effluent monitoring) are calibrated at intervals not to exceed 12 months for the radiation measured, except when a more frequent interval is specified in another applicable division or a license condition. (4) All personnel dosimeters (except for direct and indirect reading pocket ionization chambers and those dosimeters used to measure the dose to the extremities) that require processing to determine the radiation dose and that are used by licensees or registrants to comply with OAR 333-120-0100, with other applicable provisions of this division or with conditions specified in a license must be processed and evaluated by a dosimetry processor: (a) Holding current personnel dosimetry accreditation from the National Voluntary Laboratory Accreditation Program (NVLAP) of the National Institute of Standards and Technology; and (b) Approved in this accreditation process for the type of radiation or radiations included in the NVLAP program that most closely approximates the type of radiation or radiations for which the individual wearing the dosimeter is monitored. (5) The licensee or registrant must ensure that adequate precautions are taken to prevent a deceptive exposure of an individual monitoring device.