Section 340.710  Use of Process or Other Engineering Controls

a)         The licensee shall use, to the extent practicable, process or other engineering controls (e.g., containment or ventilation) to control the concentrations of radioactive material in air.

b)         The licensee shall measure airflow rates initially and semiannually thereafter to assure proper ventilation system performance.  Records of the evaluation of ventilation system performance shall be maintained for Agency inspection and shall include:

1)         The date of evaluation;

2)         Results of ventilation rate measurements;

3)         Manufacturer, model and serial number of the measurement instrument used; and

4)         The identity of the individual performing the measurements.

(Source:  Amended at 29 Ill. Reg. 20841, effective December 16, 2005)