Mont. Admin. R. 4.10.1104 - PRIMARY CONTAINMENT STANDARDS FOR BULK PESTICIDES
(1) Formulated bulk pesticides in undivided
quantities of more than 500 U.S. gallons or 4,500 pounds, stored for more than
14 consecutive days, shall be in primary containment meeting the following
requirements:
(a) primary containment and
appurtenances shall be constructed, installed and maintained to prevent a spill
of pesticide.
(b) primary
containment and appurtenances shall be of materials which are resistant to
corrosion, puncture and cracking.
(c) materials used in the construction or
repair of primary containment and appurtenances may not be of a type which
react chemically or electrolytically with stored pesticides in a way which may
weaken the storage container or appurtenances, or create a risk of
discharge.
(d) materials used for
valves, fittings and repairs shall be compatible with the materials used in the
primary containment.
(e) primary
containment and appurtenances shall handle all operation stresses, taking into
account static head, pressure buildup from pumps and compressors, and any other
mechanical stresses to which the primary containment and appurtenances may be
subject in the foreseeable course of operations.
(f) every primary containment connection,
except a safety relief valve and conservation vent connection, shall be
equipped with a manual shut-off valve.
(g) appurtenances shall be adequately
supported to prevent sagging and possible breakage because of gravity and other
forces encountered in the ordinary course of operation.
(h) primary containment and appurtenances
shall be protected against reasonably foreseeable risks of damage by moving
vehicles or objects.
(i) primary
containment, not in-service for longer than two years shall be thoroughly
cleaned with all hatches secured and all valves or connections secured. Vents
shall be functional. An integrity test shall be performed before primary
containment can be placed back in service.
(j) primary containment shall be anchored or
secured or elevated to prevent instability or flotation as a result of liquid
accumulations within the secondary containment.
(k) primary containment may not be filled
beyond the capacity for which it is designed, taking into account the density
of the liquid being stored and thermal expansion during storage.
(l) primary containment retaining liquid
shall be equipped with a liquid level gauging device by which the level of
liquid in the storage container can be readily and safely determined. A gauging
device is not required if the liquid in the container can be measured safely by
other means. The gauging device shall be secured to protect against breakage or
vandalism which may result in a discharge. External sight gauges must be
equipped with an automatic shut-off valve.
(m) primary containment used for liquid
pesticide shall be equipped with a conservation vent which opens and closes
within the designed pressure limits of the container.
(n) All primary containment shall be labeled
in accordance with the labeling requirements set forth in the Code of Federal
Regulations Title 40, parts 152 and 156 (July 1, 1996), which are hereby
incorporated by reference. Copies of 40 CFR, parts 152 and 156 are available
upon request to the Montana Department of Agriculture, P.O. Box 200201, Helena,
MT 59620-0201. The registered product label shall be attached to primary
containment in a prominent location. The label shall be complete and
legible.
Notes
Sec. 80-8-105, MCA; IMP, Sec. 80-8-105, MCA;
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