Current through Register Vol. 49, No. 13, September 23, 2024
Subpart
1.
Corrective action necessary.
The owner or operator must take immediate corrective action
when measurements of more than 30 ppm of carbon monoxide or more than 0.3 ppm
of nitrogen dioxide are made for more than 15 minutes in an area of the arena
building that is open to the public. Corrective action must include:
A. increasing the ventilation rate
immediately; and
B. suspending
internal combustion-powered equipment use, if carbon monoxide measurements
remain in excess of 30 ppm or nitrogen dioxide measurements remain in excess of
0.3 ppm for more than one hour after an original exceeding measurement.
The owner or operator must continue corrective action until
measurements show not more than 30 ppm of carbon monoxide and not more than 0.3
ppm of nitrogen dioxide in all areas of the arena building that are open to the
public.
Subp. 2.
Follow-up testing.
The owner or operator must conduct and document the following
air quality tests to confirm the effectiveness of the corrective
actions:
A. at 15-minute intervals
until measurements show not more than 30 ppm of carbon monoxide and not more
than 0.3 ppm of nitrogen dioxide; and
B. at 15-minute intervals for at least one
hour per day for the subsequent three days of arena operation.
Subp. 3.
Report.
Whenever the conditions of subpart 1 occur, the owner or
operator must submit a report to the commissioner within five business days
that includes:
A. an explanation of
why corrective action was necessary;
B. a description of the immediate corrective
actions that were taken;
C. a
record of all air quality tests required by subpart 2; and
D. an action plan to prevent a
recurrence.
Subp. 4.
Arena evacuation necessary.
A.
The owner or operator must evacuate an area of the arena building whenever:
(1) measured carbon monoxide air
concentrations exceed 83 ppm or measured nitrogen dioxide concentrations exceed
2.0 ppm for more than 15 minutes; or
(2) measured carbon monoxide air
concentrations exceed 30 ppm or measured nitrogen dioxide air concentrations
exceed 0.3 ppm for more than two hours after originally measuring unacceptable
air quality conditions.
B. When evacuation becomes necessary, the
owner or operator must:
(1) contact the local
fire department as soon as possible to request assistance in evacuating the
facility and assessing the hazard; and
(2) contact the Department of Health upon
completing the evacuation.
C. Evacuated areas may only be reoccupied by
the public after an evacuation under item A if:
(1) acceptable air quality conditions are
measured;
(2) corrective measures
have been taken to prevent further incidence of unacceptable air quality
conditions; and
(3) acceptable air
quality conditions and corrective measures are verified by the local fire
department or the Department of Health.
Statutory Authority: MS s
144.1222
