Virginia Administrative Code › Title 9 - ENVIRONMENT › Agency 5 - STATE AIR POLLUTION CONTROL BOARD › Chapter 45 - CONSUMER AND COMMERCIAL PRODUCTS › Part I - Special Provisions › Section 9VAC5-45-30 - Emission testing

Current through Register Vol. 40, No. 24, July 15, 2024
A.
				  Emission tests for operations and products subject to standards prescribed
				  under this chapter 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 such
				  operation or product is in compliance; (iv) waives the requirement for emission
				  tests because the owner or other person has demonstrated by other means to the
				  board's satisfaction that such operation or product is in compliance with the
				  standard; or (v) approves shorter sampling times and smaller sample volumes
				  when necessitated by process variables or other factors. In cases where no
				  appropriate reference method exists for an operation or product subject to an
				  emission standard for volatile organic compounds, the applicable test method in
				  9VAC5-20-121 may be considered
				  appropriate.
B. Emission testing
				  for operations and products subject to standards prescribed under this chapter
				  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, judgment, 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 operations and products
				  subject to standards prescribed under this chapter shall be conducted under
				  conditions that the board shall specify to the owner, based on representative
				  performance of such operation or product. 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 unless otherwise specified in the applicable standard.
D. An owner may request that the board
				  determine the opacity of emissions from operations or control devices that are
				  subject to the provisions of this chapter during the emission tests required by
				  this section.
E. Except as
				  otherwise specified in the applicable test method or procedure, each emission
				  test for an operation or product subject to standards prescribed under this
				  chapter shall consist of three separate runs using the applicable test method.
				  Each run shall be conducted for the time and under the conditions acceptable to
				  the board. 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 an irreplaceable portion 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.
F.
				  The board may test emissions of volatile organic compounds from any operation
				  or product subject to standards prescribed under this chapter. 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.
5. Test enclosures for determining capture
				  efficiency.