Administrative Rules of Montana › Department 4 - AGRICULTURE › Chapter 4.10 - AGRICULTURAL SCIENCES DIVISION › Subchapter 4.10.11 - Pesticide Reporting, Cleanup, and Containment › Rule 4.10.1104 - PRIMARY CONTAINMENT STANDARDS FOR BULK PESTICIDES

Current through Register Vol. 13, July 5, 2024
(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.