DHS 157.24(5)(b)(b) Leakage of 37 Bq (0.001 mCi) of radon-222 per 24 hours for sources manufactured to contain radium.

DHS 157.24(5)(c)(c) The presence of removable contamination resulting from the decay of 185 Bq (0.005 mCi) or more of radium.

DHS 157.24(6)(6) Action required due to a leaking source. A licensee or registrant shall immediately withdraw a leaking sealed source from use and shall take action to prevent the spread of contamination. The leaking sealed source shall be repaired or disposed of under the requirements of this chapter.

DHS 157.24(7)(7) Reports. Reports of test results for leaking or contaminated sealed sources shall be prepared under s. DHS 157.32 (7) and retained for 3 years after disposal or repair of the source.

DHS 157.24 HistoryHistory: CR 01-108: cr. Register July 2002 No. 559, eff. 8-1-02; CR 16-078: am. (1) (b) (intro.) Register January 2018 No. 745, eff. 2-1-18.

DHS 157.25(1)(1) General requirements.

DHS 157.25(1)(a)1.1. Surveys of areas, including the subsurface, necessary for the licensee or registrant to comply with this subchapter.

DHS 157.25(1)(a)2.2. Surveys of areas, including the subsurface, necessary and reasonable under the circumstances to evaluate any of the following:

DHS 157.25(1)(a)2.c.c. The potential radiological hazards of the radiation levels detected and residual radioactivity detected.

DHS 157.25(1)(b)(b) A licensee or registrant shall ensure that instruments and equipment used for quantitative radiation measurements, including 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 elsewhere in this chapter or in a license condition.

DHS 157.25(1)(c)(c) 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 s. DHS 157.22 (1), with other applicable provisions of this chapter or with conditions specified in a license or registration shall be processed and evaluated by a dosimetry processor that meets both of the following conditions:

DHS 157.25(1)(c)1.1. Holds current personnel dosimetry accreditation from the national voluntary laboratory accreditation program of the national institute of standards and technology.

DHS 157.25(1)(c)2.2. Is approved in this accreditation process for the type of radiation or radiations included in the national voluntary laboratory accreditation program that most closely approximates the type of radiation or radiations for which the individual wearing the dosimeter is monitored.

DHS 157.25(1)(d)(d) Notwithstanding s. DHS 157.31 (3) (a), records from surveys describing the location and amount of subsurface residual radioactivity identified at the site shall be kept with decommissioning records and shall be retained under s. DHS 157.15.

DHS 157.25(2)(2) Conditions requiring individual monitoring of external and internal occupational dose. A licensee or registrant shall monitor exposures from sources of radiation at levels sufficient to demonstrate compliance with the occupational dose limits of this subchapter. Monitoring devices may be changed quarterly, provided the assignee has not exceeded 10% of the occupational limits in s. DHS 157.22 (1) (a). If the assignee exceeds 10% of the occupational limits, the monitoring device shall be changed monthly. As a minimum, a licensee or registrant shall do all the following:

DHS 157.25(2)(a)(a) Monitor occupational exposure to radiation sources under their control and supply and require the use of individual monitoring devices by all of the following:

DHS 157.25(2)(a)1.1. Adults likely to receive, in one year from sources external to the body, a dose in excess of 10% of the limits in s. DHS 157.22 (1) (a). Monitoring devices shall be individually assigned and not shared.

DHS 157.25(2)(a)2.2. Minors likely to receive in one year, from radiation sources external to the body, a deep-dose equivalent in excess of 1.0 mSv (0.1 rem), a lens-dose equivalent in excess of 1.5 mSv (0.15 rem), or a shallow-dose equivalent to the skin or to the extremities in excess of 5 mSv (0.5 rem).

DHS 157.25(2)(a)3.3. A declared pregnant woman likely to receive, in one year from sources external to the body, a dose in excess of one mSv (0.1 rem).

DHS 157.25(2)(b)(b) Monitor, to determine compliance with s. DHS 157.22 (4), the occupational intake of radioactive material by and assess the committed effective dose equivalent to all of the following individuals: