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<br />contamination on skin or clothes exceeding 1000 <br />dpmJ100 cm2 shall require decontamination and <br />an investigation by the plant Radiation Safety <br />Officer as to the oause. <br />12.4.8.2 The licensee shall conduct alpha contamination <br />surveys of the licensed facilities control rooms, <br />lunch rooms, change rooms, and offices at least <br />weekly. If the surveys reveal contamination <br />levels that exceed Department guidelines, the <br />area shall be decomtaminated immediately and an <br />investigation made by the plant Radiation Safety <br />Officer to determine the cause and corrective <br />measures required to prevent recurrence. <br />12.4.9 FACILITIES BUPA AND GAhP1A SAMPLING <br />This shall be as in the Procedures D~nual, <br />approved by the Department, required by LC 12.1.7. <br />12.4.10 FACILITIES STACK MONI~t7RiNG <br />12.4.10.1 The crusher stack or exhaust shall be sampled <br />quarterly and analyzed for uranium, lead-210, <br />Thorium-230 and Radium-226. Sampling shall be <br />representative, and adequate for determination of <br />the release rates and concentrations of uranium. <br />12.4.10.2 The flan rates of the process stacks identified <br />aLrove shall be measured semiannually and whenever <br />arty process equipment changes are made that might <br />significantly alter the flow rate. <br />12.4.11 ENVIRL1tA'~1TAL MGNI'1YJRING <br />The licensee's environmental monitoring and <br />analysis program shall be as in the Cotter <br />Procedures b1anual, required by LC 12.1.7 in <br />accordance USNFC Reg. Guide 4.14 as applicable, <br />and the following: <br />12.4.11.1 Air Monitoring <br />Phvironmental air monitoring for particulates <br />shall be continuous for uranium, Radium-226, <br />Thorium-230, and Lead-210 at four property <br />boundaries, at least one nearest feasible <br />residence, and at a control location. Fadon-222 <br />VII -19- <br />