- Table 5 to Subpart IIIII of Part 63—Required Elements of Floor-Level Mercury Vapor Measurement and Cell Room Monitoring Plans
Your Floor-Level Mercury Vapor Measurement Plan required by § 63.8192(d) prior to the applicable compliance date specified in § 63.8186(a)(2) and Cell Room Monitoring Plan required by § 63.8192(g) must contain the elements listed in the following table:
| You must specify in your plan . . . | Additional requirements | 1. Locations in the cell room where you will measure the level of mercury vapor | The locations must be representative of the entire cell room floor area. At a minimum you must measure the level of mercury vapor above mercury-containing cell room equipment, as well as areas around the cells, decomposes, or other mercury-containing equipment. | 2. Equipment or sampling and analytical methods that you will use to measure the level of mercury vapor | If an instrument or other equipment is used, the plan must include manufacturer specifications and calibration procedures. The plan must also include a description of how you will ensure that the instrument will be calibrated and maintained according to manufacturer specifications. | 3. Measurement frequency | Measurements must take place at least once each half day. | 4. Number of measurements | At least three readings must be taken at each sample location and the average of these readings must be recorded. | 5. A floor-level mercury concentration action level | The action level may not be higher than 0.05 mg/m 3. | 1. Details of your mercury monitoring system. | 2. How representative sampling will be conducted | Include some pre-plan measurements to demonstrate the profile of mercury concentration in the cell room and how the selected sampling locations ensure conducted representativeness. | 3. Quality assurance/quality control procedures for your mercury monitoring system | Include a description of how you will keep records or other means to demonstrate that the system is operating properly. | 4. Your action level | Include the background data used to establish your level. |
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