Subpart 380.5: Radiation Dose Limits For Individual Members Of The Public
(Statutory authority : Environmental Conservation Law, arts. 1, 3, 17, 19, 27, 29, 37)
- 380-5.1 Dose limits for individual members of the public.
- 380-5.2 Compliance with dose limits for individual members of the public.
§380-5.1 Dose limits for individual members of the public.
(a) Each person subject to this Part shall limit disposals and discharges of radioactive material subject to this Part to the environment so that--
(1) The total effective dose equivalent to individual members of the public does not exceed 0.1 rem (1 mSv) in a year, exclusive of the dose contribution from the licensee's disposal of licensed material into sanitary sewerage in accordance with section 380-4.2 of this Part; and
(2) The dose in any unrestricted area in the environment from external sources does not exceed 0.002 rem (0.02 mSv) in any one hour; and
(3) Doses to individual members of the public are as low as reasonably achievable (ALARA).
(b) If the licensee permits members of the public to have access to restricted areas, the limits for members of the public continue to apply to those individuals.
(c) In addition to the requirements of this Part, a licensee subject to the provisions of the U.S. Environmental Protection Agency's generally applicable environmental radiation standards in 40 CFR Part 190 shall comply with those standards.
(d) The department may impose additional restrictions on radiation levels in unrestricted areas in the environment and on the total quantity of radionuclides that a licensee may dispose of or discharge in effluents in order to restrict collective dose.
§380-5.2 Compliance with dose limits for individual members of the public.
(a) Each person subject to this Part shall make or cause to be made, as appropriate, surveys of radiation levels in unrestricted areas in the environment and radioactive materials in effluents released to unrestricted areas in the environment to demonstrate compliance with the dose limits for individual members of the public in section 380-5.1 of this Part.
(b) The person shall show compliance with the annual dose limit in section 380-5.1 of this Part by--
(1) Demonstrating by measurement or calculation that the total effective dose equivalent to the individual likely to receive the highest dose from the discharge or disposal does not exceed the annual dose limit; or
(2) Demonstrating that--
(i) The annual average concentrations of licensed material discharged in effluents to air or water at the point of discharge do not exceed the values specified in Table II of Subpart 380-11 of this Part; and
(ii) If an individual were continually present in an unrestricted area, the dose from external sources would not exceed 0.002 rem (0.02 mSv) in an hour and 0.05 rem (0.5 mSv) in a year.
(c) Upon approval from the department, a permittee may adjust the effluent concentration values in Table II of Subpart 380-11 of this Part, for members of the public, to take into account the actual physical and chemical characteristics of the effluents (e.g., aerosol size distribution, solubility, density, radioactive decay equilibrium, chemical form). Nothing in this subdivision alters the requirements of section 380-5.1 of this Part.