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Virginia Administrative Code
Title 9. Environment
Agency 5. State Air Pollution Control Board
Chapter 40. Existing Stationary Sources
11/21/2024

9VAC5-40-8440. Monitoring.

A. The provisions of 9VAC5-40-40 (Monitoring) apply.

B. Periodic monitoring of offset lithographic printing operations shall be conducted as follows:

1. The alcohol concentration of offset lithographic printing process fountain solution shall be monitored with a hydrometer, equipped with temperature correction or with readings adjusted for temperature, and recorded at least once per shift or once per batch, whichever is longer. A standard solution shall be used to calibrate the hydrometer for the type of alcohol used in the fountain.

2. The temperature of refrigerated fountain solution shall be measured at the recirculating tank at least once per operating day.

3. The temperature of a catalytic or thermal oxidation control device shall be monitored at least once every 15 minutes while the printing process is operating, and that temperature shall be recorded by an analog or digital recording device.

a. For a catalytic oxidizer, the dryer exhaust temperature upstream of the catalyst bed shall be monitored and recorded.

b. For a thermal oxidizer, the combustion chamber temperature of the oxidizer shall be monitored and recorded.

4. Catalyst bed material in a catalytic oxidation control device shall be inspected annually for general catalyst condition and any signs of potential catalyst depletion. Sampling and evaluation of the catalyst bed material shall be conducted whenever the results of the inspection indicate signs of potential catalyst depletion or poor catalyst condition based on manufacturer's recommendations, but not less than once per year.

5. If a heatset web offset lithographic printing process is interlocked to ensure that the control device is operating and airflow is present when the printing process is operating, then periodic monitoring of dryer air flow is not required. If no interlock is present, then the printing process dryer air flow shall be verified and recorded once per operating day.

Statutory Authority

§ 10.1-1308 of the Code of Virginia; 110, 111, 123, 129, 171, 172, and 182 of the federal Clean Air Act; 40 CFR Parts 51 and 60.

Historical Notes

Derived from Virginia Register Volume 32, Issue 7, eff. February 1, 2016.

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