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Virginia regulations · Through 2026 Regular Session (effective July 1, 2026)

9VAC5-40-6620: Standard for nitrogen oxides

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Where this section sits in the code
  1. Title 9. Environment
  2. Agency 5. State Air Pollution Control Board
  3. Chapter 40. Existing Stationary Sources
  4. Part II. Emission Standards
  5. Article 46. Emission Standards for Small Municipal Waste Combustors (Rule 4-46)

No owner or other person shall cause or permit to be discharged into the atmosphere from any Class I unit any nitrogen oxide emissions in excess of the following:

1. For mass burn waterwall units: 200 parts per million by dry volume, measured at 7.0% oxygen, 24-hour daily block arithmetic average concentration.

2. For mass burn rotary waterwall units: 170 parts per million by dry volume measured at 7.0% oxygen, 24-hour daily block arithmetic average concentration.

3. For refuse-derived fuel units: 250 parts per million by dry volume, measured at 7.0% oxygen, 24-hour daily block arithmetic average concentration.

4. For fluidized bed units: 220 parts per million by dry volume, measured at 7.0% oxygen, 24-hour daily block arithmetic average concentration.

5. For mass burn refractory units: 350 parts per million by dry volume, measured at 7.0% oxygen, 24-hour daily block arithmetic average concentration.

6. For modular excess air units: 190 parts per million by dry volume, measured at 7.0% oxygen, 24-hour daily block arithmetic average concentration.

7. For modular starved air units: 380 parts per million by dry volume, measured at 7.0% oxygen, 24-hour daily block arithmetic average concentration.

Collected 2026-09-14T04:48:15Z. Source file · JSON

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