West Virginia Code of State Rules › Agency 45 - Air Quality › Title 45 - LEGISLATIVE RULE DEPARTMENT OF ENVIRONMENTAL PROTECTION AIR QUALITY › Series 45-07A - Compliance Test Procedures For 45 CSR 7 - To Prevent And Control Particulate Air Pollution from Manufacturing Process Operations › Section 45-7A-2 - Visible Emission Test Procedures

Current through Register Vol. XLI, No. 28, July 12, 2024
2.1.
2.1.a.
				Tests to determine compliance with the visible emission standards of sections
				3.1., 3.2., 3.3.b., 3.3.c., 3.4.b., 3.4.c., 3.5.d., 3.5.e., and 3.6. of 45CSR7
				shall be determined in accordance with the following:
2.1.a.1. The opacity or Ringelmann number of
				emissions from manufacturing process operations shall be determined visually by
				a qualified observer.
2.1.a.2. The
				observer qualified in accordance with section 2.1.a.3. shall use the following
				procedures for visually determining the opacity or Ringelmann numbers of
				emissions unless otherwise specified under sections 2.1.b. through 2.1.f.
2.1.a.2.A. The qualified observer shall stand
				at a distance sufficient to provide a clear view of the emissions with the sun
				oriented in the 140 degree sector to his back. Consistent with maintaining the
				above requirement, the observer shall, as much as possible, make his
				observations from a position such that his line of vision is approximately
				perpendicular to the plume direction, and when observing opacity of emissions
				from rectangular outlets (e.g. roof monitors, open baghouses, noncircular
				stacks), approximately perpendicular to the longer axis of the outlet. The
				observer's line of sight should not include more than one plume at a time when
				multiple stacks are involved, and in any case the observer should make his
				observations with his line of sight approximately perpendicular to the longer
				axis of such a set of multiple stacks (e.g. stub stacks on
				baghouses).
2.1.a.2.B. The observer
				shall record the name of the plant, emission location, type facility,
				observer's name and title, and the date on a field data sheet. The time,
				estimated distance to the emission location, approximate wind direction,
				estimated wind speed, description of the sky condition (presence and color of
				clouds), and plume background are recorded on a field data sheet at the time
				opacity readings are initiated and completed.
2.1.a.2.C. Opacity observations shall be made
				at the point of greatest opacity in that portion of the plume where condensed
				water vapor is not present. The observer shall not look continuously at the
				plume, but instead shall observe the plume momentarily at fifteen (15) second
				intervals.
2.1.a.2.C.1. When condensed water
				vapor is present within the plume as it emerges from the emission outlet,
				opacity observations shall be made beyond the point in the plume at which
				condensed water vapor is no longer visible. The observer shall record the
				approximate distance from the emission outlet to the point in the plume at
				which the observations are made.
2.1.a.2.C.2. When water vapor in the plume
				condenses and becomes visible at a distinct distance from the emission outlet,
				the opacity of emissions should be evaluated at the emission outlet prior to
				the condensation of water vapor and the formation of the steam plume.
2.1.a.2.D. The minimum number of
				observations which must be taken is to be determined in accordance with
				sections 2.1.b. through 2.1.f.
2.1.a.3. Observers shall be certified in
				accordance with 40 CFR, Part 60, Appendix A, Method 9, Section 3, as published
				on July 1, 1997.