dept. 1200, 1206, 8 CCR 1206-1, I, pt. 3.0, subpt. C

Current through Register Vol. 47, No. 23, December 10, 2024

Subpart C - Operations of Liquid Fertilizer Primary and Secondary Containment Facilities and Mixing and Loading Areas

Storage Containers and Appurtenances - Liquid Fertilizer

3.9. General Requirements

(a) Storage containers and appurtenances shall be constructed, installed and maintained so as to prevent the unintentional discharge of liquid fertilizer.

(b) Storage containers and appurtenances shall be constructed of materials which are resistant to corrosion, puncture or cracking.

(c) Materials used in the construction or repair of storage containers and appurtenances may not be of a type which reacts chemically or electrolytically with stored fertilizer in a way which may weaken the storage container or appurtenance or create a risk of discharge.

(d) Metals used for valves, fittings and repairs on metal containers shall be compatible with the metals used in the construction of the storage container, so that the combination of metals does not cause or increase corrosion which may weaken the storage container or its appurtenances, or create a risk of discharge.

(e) Storage containers and appurtenances shall be designed to handle all operating stresses, taking into account static head, pressure buildup from pumps and compressors, and any other physical stresses to which the storage containers and appurtenances may be subject in the foreseeable course of operations.

(f) Storage containers and appurtenances, including pipes, shall be protected against reasonably foreseeable risks of damage by trucks and other moving vehicles engaged in the loading and unloading of liquid fertilizer.

3.10. Appurtenances

(a) Every storage container connection, except a safety relief connection, shall be equipped with a shut-off valve located on the storage container or at a distance from the storage container consistent with standard engineering practice.

(b) Except during use periods, shut-off valves shall be left closed and secured.

(c) Pipes and fittings shall be adequately supported to prevent sagging and possible breakage from gravity and other forces which may be encountered in the ordinary course of operations.

(d) A flexible connection is required between the plumbing and the tank to reduce risk of rupture.

3.11. Liquid Level Gauging Device

(a) Every storage container shall be equipped with a device by which the level of liquid in the storage container can be readily and safely determined. However, a liquid level gauging device is not required if the level in a storage container can be readily and reliably measured by other means.

(b) Liquid level gauging devices shall be secured in a safe manner.

3.12. Prohibited Materials

(a) Storage containers and appurtenances used for the storage of nitrogen solutions may not be constructed of copper, brass, zinc, or copper base alloys.

(b) Storage containers and appurtenances used for the storage of liquid fertilizers containing phosphates or chlorides may not be constructed of aluminum or aluminum alloys.

(c) Storage containers and appurtenances used for the storage of low pH ( < 5.0) fertilizers may not be constructed of ferrous metals other than stainless steel unless the materials are coated or treated with protective substances which are adequate to inhibit corrosion.

(d) Storage containers and appurtenances used for the storage of phosphoric acid may not be constructed of ferrous materials other than 316 or 317 stainless steel unless the container is lined with a suitable substance to prevent corrosion.

(e) Other material may be used in (a)- (d) if approved by the manufacturer.

3.13. Abandoned Containers

(a) Storage containers used at a bulk fertilizer storage facility to hold bulk liquid fertilizer shall be considered abandoned if they have been out of service for more than 6 months because of a weakness or leak, or have been out of service for any reason for more than 2 years.

(b) Abandoned storage containers shall be thoroughly cleaned.

(c) Wash water containing fertilizer shall be utilized for the original intended purpose of the product.

3.14. Anchoring of Storage Containers

Storage containers shall be anchored, elevated or secured by other means to prevent flotation or instability which might occur as a result of liquid accumulations within the secondary containment structure.

3.15. Filling

Storage containers may not be filled beyond the capacity for which they are designed, taking into account the density of the liquid being stored and thermal expansion during storage.

dept. 1200, 1206, 8 CCR 1206-1, I, pt. 3.0, subpt. C

37 CR 19, October 10,2014, effective 11/14/2014