New Mexico Administrative Code › Title 20 - ENVIRONMENTAL PROTECTION › Chapter 11 - ALBUQUERQUE - BERNALILLO COUNTY AIR QUALITY CONTROL BOARD › Part 20 - FUGITIVE DUST CONTROL › Section 20.11.20.26 - VISUAL DETERMINATION OF FUGITIVE DUST EMISSIONS

Current through Register Vol. 35, No. 13, July 16, 2024
The following method, hereafter called the "visible fugitive
				  dust detection method", is used to visually determine the total amount of time
				  that fugitive dust emissions are visible during a continuous one-hour
				  observation period. If a trained department observer records visible fugitive
				  dust crossing a property line of the property being investigated, for a total
				  of 15 minutes or more during a continuous one-hour period, a violation of
				  20.11.20 NMAC has occurred. The observer does not have to be certified in
				  procedures found in 40 CFR 60, Method 9,
Visual Determination of the
				  Opacity of Emissions from Stationary Source
s
(EPA
				  Method 9). However, the observer shall receive training regarding how to
				  identify a violation of 20.11.20 NMAC that is caused by anthropogenic
				  activities and to distinguish fugitive dust that emanates from a source that is
				  not required by a board regulation other than 20.11.20 NMAC to obtain a permit.
				  Training shall consist of attendance at and completion of the lecture portion
				  of a Method 9 certification course and familiarity with the written materials
				  provided during the course. The method described in Subsections A through D of
				  20.11.20.26 NMAC does not require the opacity of emissions to be determined
				  during the observation period.
A. To
				correctly perform this method, the observer shall use two stopwatches. One
				stopwatch shall be used to record the continuous one-hour time period during
				which the observation is conducted. This period shall be known as the
				"observation period." The second stopwatch shall be used to record the total
				accumulated amount of time that visible fugitive dust is crossing a property
				line during the observation period. The second stopwatch shall establish the
				"visible fugitive dust emission time".
B. Prior to the observation, the observer
				shall:
(1) determine the location of potential
				fugitive dust source(s) and the location of the downwind property line for the
				source;
(2) sketch the location of
				the fugitive dust source(s), and, when available during the observation, record
				the observer's location on a copy of the fugitive dust control permit map or
				aerial photograph;
(3) sketch or
				photograph the location of the downwind property line and physical features
				that help define the property line;
(4) sketch or photograph the observer's
				location during the observations;
(5) sketch the position of the sun relative
				to the observer;
(6) document that
				the visible fugitive dust is not originating from an upwind source other than
				the source being evaluated; and
(7)
				maintain a minimum distance of at least 15 feet from the visible fugitive dust
				being observed, and a maximum distance of no more than one-quarter mile
				away.