9VAC5-60-30. Emission testing.
A. Emission tests for hazardous air pollutant sources shall be conducted and reported and data shall be reduced as set forth in this chapter and in the appropriate reference methods unless the board (i) specifies or approves, in specific cases, the use of a reference method with minor changes in methodology; (ii) approves the use of an equivalent method; (iii) approves the use of an alternative method the results of which the board has determined to be adequate for indicating whether a specific source is in compliance; (iv) waives the requirement for emission tests because the owner of a source has demonstrated by other means to the board's satisfaction that the affected facility is in compliance with the standard; or (v) approves shorter sampling times and smaller sample volumes when necessitated by process variables or other factors.
B. Emission testing for hazardous air pollutant sources shall be subject to testing guidelines approved by the board. Procedures may be adjusted or changed by the board to suit specific sampling conditions or needs based upon good practice, judgement and experience. When such tests are adjusted, consideration shall be given to the effect of such change on established emission standards. Tests shall be performed under the direction of persons whose qualifications are acceptable to the board.
C. Emission tests for hazardous air pollutant sources shall be conducted under conditions which the board shall specify to the owner based on representative performance of the source. The owner shall make available to the board such records as may be necessary to determine the conditions of the emission tests. Operations during periods of startup, shutdown and malfunction shall not constitute representative conditions for the purpose of an emission test. During the initial emission test, emissions in excess of the level of the applicable emission limit during periods of startup, shutdown, and malfunction shall not be considered a violation of the applicable emission limit unless otherwise specified in the applicable standard.
D. Each emission test for a hazardous air pollutant source shall consist of three separate runs using the applicable test method. Each run shall be conducted for the time and under the conditions specified in the applicable standard. For the purpose of determining compliance with an applicable standard the arithmetic mean of the results of the three runs shall apply. In the event that a sample is accidentally lost or if conditions occur in which one of the three runs must be discontinued because of forced shutdown, failure of the sample train, extreme meteorological conditions or other circumstances beyond the owner's control, compliance may, upon the approval of the board, be determined using the arithmetic mean of the results of the two other runs.
E. The board may test emissions of air pollutants from any hazardous air pollutant source. Upon request of the board the owner shall provide, or cause to be provided, emission testing facilities as follows:
1. Sampling ports adequate for test methods applicable to such source. This includes (i) constructing the air pollution control system such that volumetric flow rates and pollutant emission rates can be accurately determined by applicable test methods and procedures and (ii) providing a stack or duct with acceptable flow characteristics during emission tests, as demonstrated by applicable test methods and procedures.
2. Safe sampling platforms.
3. Safe access to sampling platforms.
4. Utilities for sampling and testing equipment.
F. Upon request of the board, the owner of any hazardous air pollutant source subject to the provisions of this chapter shall conduct emission tests in accordance with procedures approved by the board.
Statutory Authority
§ 10.1-1308 of the Code of Virginia; §§ 110, 111, 123, 129, 171, 172, and 182 of the Clean Air Act; 40 CFR Parts 51 and 60.
Historical Notes
Derived from VR120-06-0101, eff. April 1, 1988; amended, Virginia Register Volume 12, Issue 3, eff. December 1, 1995; Volume 13, Issue 14, eff. May 1, 1997; Volume 14, Issue 11, eff. April 1, 1998; Volume 15, Issue 13, eff. April 14, 1999; Virginia Register Volume 16, Issue 14, eff. May 1, 2000; Volume 17, Issue 15, eff. June 1, 2001; Volume 18, Issue 7, eff. February 1, 2002; Volume 19, Issue 6, eff. February 1, 2003; Volume 20, Issue 16, eff. June 1, 2004; Volume 21, Issue 7, eff. January 12, 2005; Volume 22, Issue 4, eff. December 1, 2005; Volume 23, Issue 17, eff. June 1, 2007; Volume 24, Issue 5, eff. December 12, 2007; Volume 25, Issue 12, eff. March 18, 2009; Volume 26, Issue 8, eff. January 20, 2010; Volume 27, Issue 11, eff. March 2, 2011; Volume 28, Issue 10, eff. February 15, 2012; Volume 29, Issue 10, eff. February 13, 2013; Volume 30, Issue 10, eff. July 1, 2014; Volume 31, Issue 12, eff. March 11, 2015; Volume 32, Issue 10, eff. February 10, 2016; Volume 33, Issue 10, eff. February 22, 2017; Volume 34, Issue 11, eff. February 21, 2018; Volume 35, Issue 11, eff. February 20, 2019; Volume 36, Issue 12, eff. March 4, 2020; Volume 37, Issue 4, eff. November 11, 2020.