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Virginia Administrative Code
Title 9. Environment
Agency 5. State Air Pollution Control Board
Chapter 40. Existing Stationary Sources
9/23/2020

9VAC5-40-1140. Test Methods and Procedures.

The provisions of 9VAC5-40-30 (Emission Testing) apply, except:

1. Compliance with particulate standards prescribed by 9VAC5-40-1070 A and B shall be determined by three or more emission tests conducted at different times during the total operation of the affected facility. The emission tests and times shall be acceptable to the board.

2. Compliance with opacity standards for fugitive visible emissions prescribed by 9VAC5-40-1090 B and C shall be determined by conducting observations in accordance with the test methods and procedures prescribed in subsections B 1 and 2 of this section.

a. The opacity of coke oven fugitive particulate emissions is determined by an observer, qualified in accordance with Reference Method 9, using the following procedures:

(1) The qualified observer shall, to the extent practicable, stand in a position meeting the guidelines of Reference Method 9. Notwithstanding any Method 9 guideline, the observer shall stand in a safe position with an unobstructed view of the emission source.

(2) Field records shall be in accordance with Reference Method 9.

(3) Each opacity observation shall be made at the point of greatest opacity after the emissions leave the coke oven. Observations shall be recorded at 15 second intervals for the entire duration of the charge or push. Observations which cannot be made due to the interference of another plume or any other obstruction shall be noted with an asterisk.

(4) Recording observations shall be in accordance with Reference Method 9, except that the minimum number of observations shall be determined by the duration of the operation being observed.

(5) Opacity shall be determined as an average of all 15 second observations recorded during either charging or pushing, as appropriate. Opacity of emissions shall be determined individually for each charge or push, and shall not be averaged over more than one coke oven. Missing observations due to interferences shall not affect the opacity determination.

b. All certification and testing requirements are identical to those of Reference Method 9.

Statutory Authority

§§ 10.1-1307 and 10.1-1308 of the Code of Virginia.

Historical Notes

Derived from VR120-04-0910, eff. January 1, 1985.

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