410 IAC 5-4-7 - Effluent concentration limits in unrestricted areas
Authority: IC 16-41-35-26; IC 16-41-35-29
Affected: IC 16-41-35
Sec. 7.
(a) A
licensee or registrant shall not possess, use, or transfer licensed material so
as to release to an unrestricted area radioactive material in concentrations
which exceed the limits specified in Appendix A,
410
IAC 5-4-27, Table II, except as authorized pursuant to
410 IAC
5-4-17 or 410 IAC 5-4-7(b). For purposes of 410 IAC
5-4-7, concentrations may be averaged over a period not greater than 1
year.
(b) An application for a
license or amendment may include proposed limits higher than those specified in
410 IAC 5-4-7(a). The board will approve the proposed limits if the applicant
demonstrates:
(1) That the applicant has made
a reasonable effort to minimize the radioactivity contained in effluents to
unrestricted areas; and
(2) That it
is not likely that radioactive material discharged in the effluent would result
in the exposure of an individual to concentrations of radioactive material in
air or water exceeding the limits specified in Appendix A,
410
IAC 5-4-27, Table II.
(c) An application for higher limits pursuant
to 410 IAC 5-4-7(b) shall include information demonstrating that the applicant
has made a reasonable effort to minimize the radioactivity discharged in
effluents to unrestricted areas, and shall include, as pertinent:
(1) Information as to flow rates, total
volume of effluent, peak concentration of each radionuclide in the effluent,
and concentration of each radionuclide in the effluent averaged over a period
of 1 year at the point where the effluent leaves a stack, tube, pipe, or
similar conduit;
(2) A description
of the properties of the effluents, including:
(i) Chemical composition,
(ii) Physical characteristics, including
suspended solids content in liquid effluents, and nature of gas or aerosol for
air effluents,
(iii) The hydrogen
ion concentration (pH) of liquid effluents, and
(iv) The size range of particulates in
effluents released into air;
(3) A description of the anticipated human
occupancy in the unrestricted area where the highest concentration of
radioactive material from the effluent is expected, and, in the case of a river
or stream, a description of water uses downstream from the point of release of
the effluent;
(4) Information as to
the highest concentration of each radionuclide in an unrestricted area,
including anticipated concentrations averaged over a period of 1 year:
(i) In air at any point of human occupancy,
or
(ii) In water at points of use
downstream from the point of release of the effluent;
(5) The background concentration of
radionuclides in the receiving river or stream prior to the release of liquid
effluent;
(6) A description of the
environmental monitoring equipment, including sensitivity of the system, and
procedures and calculations to determine concentrations of radionuclides in the
unrestricted area and possible reconcentrations of radionuclides; and
(7) A description of the waste treatment
facilities and procedures used to reduce the concentration of radionuclides in
effluents prior to their release.
(d) For the purposes of 410 IAC 5-4-7, the
concentration limits in Appendix A,
410
IAC 5-4-27, Table II, shall apply at the boundary of
the restricted area. The concentration of radioactive material discharged
through a stack, pipe or similar conduit may be determined with respect to the
point where the material leaves the conduit. If the conduit discharges within
the restricted area, the concentration at the boundary may be determined by
applying appropriate factors for dilution, dispersion, or decay between the
point of discharge and the boundary.
(e) In addition to limiting concentrations in
effluent streams, the board may limit quantities of radioactive material
released in air or water during a specified period of time if it appears that
the daily intake of radioactive material from air, water, or food by a suitable
sample of an exposed population group, averaged over a period not exceeding 1
year, would otherwise exceed the daily intake resulting from continuous
exposure to air or water containing one-third (1/3) the concentration of
radioactive material specified in Appendix A,
410
IAC 5-4-27, Table II.
(f) The provisions of 410 IAC 5-4-7 do not
apply to disposal of radioactive material into sanitary sewerage systems, which
is governed by
410 IAC
5-4-18.
(g) In addition to other requirements of this
part [ 410 IAC 5-4 ], licensees engaged in uranium fuel cycle
operations subject to the provisions of
410
IAC 5-3-13 shall also comply with the provisions of 40
CFR Part 190, "Environmental Radiation Protection Standards for Nuclear Power
Operations."
Notes
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