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Virginia Administrative Code
Title 9. Environment
Agency 5. State Air Pollution Control Board
Chapter 40. Existing Stationary Sources
11/23/2024

9VAC5-40-8050. Standard for nitrogen oxides.

No owner or other person shall cause or permit to be discharged into the atmosphere from any affected facility any gases that contain nitrogen oxides in excess of the following limits:

1. For facilities not engaged in an emissions averaging plan as described in 9VAC5-40-8100 D:

a. For mass burn waterwall units: 205 parts per million by volume corrected to 7.0% oxygen, dry basis.

b. For mass burn rotary waterwall units: 250 parts per million by volume corrected to 7.0% oxygen, dry basis.

c. For refuse-derived fuel combustors: 250 parts per million by volume corrected to 7.0% oxygen, dry basis.

d. For fluidized bed combustors: 180 parts per million by volume corrected to 7.0% oxygen, dry basis.

e. For mass burn refractory combustors: no limit.

2. For facilities engaged in an emissions averaging plan as described in 9VAC5-40-8100 D:

a. For mass burn waterwall units: 185 parts per million by volume, corrected to 7.0% oxygen, dry basis.

b. For mass burn rotary waterwall units: 220 parts per million by volume, corrected to 7.0% oxygen, dry basis.

c. For refuse-derived fuel combustors: 230 parts per million by volume, corrected to 7.0% oxygen, dry basis.

d. For fluidized bed combustors: 165 parts per million by volume, corrected to 7.0% oxygen, dry basis.

Statutory Authority

§ 10.1-1308 of the Code of Virginia.

Historical Notes

Derived from Virginia Register Volume 15, Issue 21, eff. August 4, 1999.

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