Administrative Code

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Virginia Administrative Code
Title 9. Environment
Agency 5. State Air Pollution Control Board
Chapter 40. Existing Stationary Sources
5/18/2021

9VAC5-40-6720. Operating requirements.

A. No owner shall operate any municipal waste combustion unit at loads greater than 110% of the maximum demonstrated load of the municipal waste combustion unit (four-hour block average).

B. The municipal waste combustion unit shall be operated such that the temperature at the inlet of the particulate matter control device does not exceed 17°C above the maximum demonstrated temperature of the particulate matter control device (four-hour block average).

C. If the municipal waste combustion unit uses activated carbon to control dioxins/furans or mercury emissions, an eight-hour block average carbon feed rate at or above the highest average level established during the most recent dioxins/furans or mercury test shall be maintained.

D. If the municipal waste combustion unit uses activated carbon to control dioxins/furans or mercury emissions, the total carbon usage for each calendar quarter shall be evaluated. The total amount of carbon purchased and delivered to the municipal waste combustion plant shall be at or above the required quarterly usage of carbon. The owner may choose to evaluate required quarterly carbon usage on a municipal waste combustion unit basis for each individual municipal waste combustion unit. The quarterly usage of carbon shall be calculated as required in 9VAC5-40-6760 F 1 e (1) and (2).

E. A municipal waste combustion unit is exempt from limits on load level, temperature at the inlet of the particulate matter control device, and carbon feed rate during any of the following.

1. Annual tests for dioxins/furans.

2. Annual mercury tests (for carbon feed rate requirements only).

3. The two weeks preceding annual tests for dioxins/furans.

4. The two weeks preceding annual mercury tests (for carbon feed rate requirements only).

5. Whenever the board allows any of the following.

a. Evaluation of system performance.

b. Testing of new technology or control technologies.

c. Performance of diagnostic testing.

d. Performance of other activities to improve unit performance.

e. Performance of other activities to advance the state of the art for emission controls for the municipal waste combustion unit.

Statutory Authority

§ 10.1-1308 of the Code of Virginia.

Historical Notes

Derived from Virginia Register Volume 19, Issue 24, eff. September 10, 2003.

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