Section 641.40.36. Surveys and monitoring—general.

         40.36(1) Each licensee or registrant shall make, or cause to be made, surveys of areas, including the subsurface, that:

            a.               Are necessary for the licensee or registrant to comply with this chapter; and

            b.               Are necessary under the circumstances to evaluate:

             (1)             The magnitude and extent of radiation levels; and

             (2)             Concentrations or quantities of residual radioactivity; and

             (3)             The potential radiological hazards of the radiation levels and residual radioactivity detected.

         40.36(2) Notwithstanding 641—40.82(136C), records from surveys describing the location and amount of subsurface residual radioactivity identified at the site must be kept with records important for decommissioning, and such records must be retained in accordance with 641—subrule 39.4(26) as applicable.

         40.36(3) The licensee or registrant shall ensure that instruments and equipment used for quantitative radiation measurements, for example, 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 part of these rules or a license condition.

         40.36(4) All personnel dosimeters, except for direct and indirect reading pocket ionization chambers and those dosimeters used to measure the dose to any extremity, that require processing to determine the radiation dose and that are used by licensees and registrants to comply with 40.15(136C), with other applicable provisions of these rules, or with conditions specified in a license or registration shall 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.

         40.36(5) The licensee or registrant shall ensure that adequate precautions are taken to prevent a deceptive exposure of an individual monitoring device.

         40.36(6) After replacement, each personnel dosimeter must be sent for processing as soon as possible.

[ARC 1639C, IAB 10/1/14, effective 11/5/14]