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Oklahoma Administrative Code (Last Updated: March 11, 2021) |
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TITLE 35. Oklahoma Department of Agriculture, Food, and Forestry |
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Chapter 30. Consumer Protection |
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Subchapter 29. Fertilizer |
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Part 3. LIQUID, DRY, AND ANHYDROUS AMMONIA |
SECTION 35:30-29-31. Liquid fertilizer
Latest version.
- (1) Storage tanks and appurtenances shall be constructed installed and maintained to prevent the discharge of liquid fertilizer.(2) Materials used in construction or repair of storage tanks and appurtenances may not be of a type which react chemically or electrolytically with stored liquid fertilizer in a way which may weaken the storage tanks or appurtenances or create a risk of discharge.(3) Metals used for valves, fittings, and repairs on metal tanks shall be compatible with the metals used in the construction of the storage tank, so that the combination of metals does not cause or increase corrosion which may weaken the storage tank or its appurtenances or create a risk of discharge.(4) Storage tanks and appurtenances shall be designed to handle all operating stresses, taking into account static head, pressure buildup from pumps and compressors, and any other mechanical stresses to which the storage tanks and appurtenances may be subjected to in the foreseeable course of operations.(b) Prohibition against underground storage. No person shall store liquid fertilizer in an underground or lined pit storage container.(c) Anchoring storage containers. Storage tanks shall be anchored to prevent flotation or instability.(d) Security.(1) Storage tanks and appurtenances shall be secured to provide reasonable protection against vandalism or unauthorized access which may result in a discharge.(2) Valves on storage tanks shall be locked or secured except when persons responsible for the facility are present at the facility.(3) Valves on rail cars, nurse tanks and other mobile fertilizer tanks parked overnight at a storage facility shall be locked or secured except when persons responsible for facility security are present at the facility.(e) Liquid level gauging device.(1) Every storage tank shall be equipped with a liquid level gauging device by which the level of fluid in the storage tank can be readily and safely determined.(2) A liquid level gauging device is not required if the level of liquid in a storage tank can be readily and reliably measured by other means.(3) Liquid level gauging devices shall be secured to protect against breakage or vandalism which may result in a discharge.(4) External sight gauges are prohibited unless they are equipped with a shut-off valve.(f) Labeling of storage tanks. Every storage tank shall be clearly labeled to identify its fertilizer contents.(g) Inspection and maintenance.(1) The operator of a storage facility shall routinely inspect and maintain storage facilities, storage tanks, and appurtenances to minimize the risk of a discharge.(2) The operator shall inspect valves and other appurtenances for leakage at least weekly when facilities are being used for storage.