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~:! <br />ih <br />13.4.6.3.3 Urinal:+sis results exceeding 30 ugil and/cr in-vivo re:;ults <br />exceeding 16 nCi shall t~ reported to the RSO by telephone. <br />Prevention of specimen contamination shall be in accordance with <br />Section C.6 of US\RC Regulatory Guide o. 22. <br />13.4.6.3.4 The 1ic~ensee shall implement a documented quality control <br />pro;; ram fo: urine specimens that includes background samples, <br />blanks, and spikes and also criteria for requiring repeat <br />collection and analysis. <br />13.4.6.3.5 d basei.ir.e urine sample shall be obtainea from any new worker, <br />who wile be subject to urinalysis, prior to start of work. <br />13.4.6.4 in-vino >'easurements <br />Annual ~n-vivo measurements are necessarc for all workers <br />routinely exposed to airborne uranium ore oust. <br />Ba seli nt: in-vivo measurements shall be performed on all new <br />workers who will be subject to in-vivo counting the first time <br />the in-vivo counter is available. The '_icensee shall make a <br />LJ Cm31 documented evaluation if any i.-:-vivo tho ra:c measurement <br />exceeds to nCi. <br />13.4.7 F~CILITi_S AI3 SAN.rLI:G <br />The licensee small conduct an air samcling program co assess <br />airborne radioactivity concentrations to which employees may be <br />exposed within the licensed facilities as follows: <br />13.4.1.1 :io~~thly 60-minute air samples, re.resentative of potential <br />employee e:;posure, shall be collecred at process and storage <br />loon [ions, as aporopria[e, to detar~ine airborne uranium <br />concentrations. <br />13.4.7.2 These samples shall be supplemented b;+ worker breathing zone <br />samplings a[ least monehl}• to determine the representativeness <br />of the station air Samples. <br />13.4.7.3 ?lo~nthly sampling at selected process areas shall be performed to <br />determine radon daughter concentrations. If monthly values <br />e:<~:eed ~5 percent of the applicable standards, the freyuency of <br />sainplin~; at these locations shall be increased to weekly. <br />-18- <br />