II Part 13.0 C - Operations of Liquid Pesticide Primary and Secondary Containment Facilities and Mixing and Loading Areas

Storage Containers and Appurtenances- Liquid Pesticide

13.8. General Requirements

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

(b) Primary 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 pesticide in a way which may weaken the storage container or appurtenance, create risk of discharge, or adulterate the pesticide.

(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) Primary 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) Primary 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 pesticide.

13.9. 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) All wetted parts inside shut-off valves, and all connections from the storage container to the shut-off valve, shall be made of stainless steel or the pesticide manufacturer's recommended material.

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

(d) 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.

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

13.10. 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.

(c) External sight gauges are prohibited.

13.11. Prohibited Materials

(a) Storage containers and appurtenances may not be made of polyvinyl chloride.

(b) A storage container may not be made of ferrous metals, unless:

(1) The container is made of stainless steel; or

(2) The container has a protective lining which inhibits corrosion and which does not react chemically with the stored pesticide; or

(3) Ferrous metal is the pesticide manufacturer's recommended material for the container.

13.12. Venting

Each bulk liquid pesticide storage container shall be equipped with a vent or other device designed to relieve excess pressure, prevent losses by evaporation and exclude precipitation.

13.13. Storage with other commodities

(a) No other commodity, except liquid pesticide, pesticide diluent, empty pesticide containers, or pesticide discharges recovered (from the bulk pesticide storage facility or the mixing and loading area), may be stored within the secondary containment structure.

(b) The bulk liquid pesticide secondary containment structure may share a wall or portion of a wall with a bulk liquid fertilizer secondary containment structure.

13.14. Labeling of Storage Containers

Every storage container shall bear a label stating, with regard to the current contents of the container:

(a) The complete product label required by the United States Environmental Protection Agency;

(b) The total capacity of the bulk storage tank; and

(c) The label required under this section shall be placed on the storage container so as to be visible from outside of the secondary containment structure. The label shall be kept in readable condition.

13.15. Abandoned Containers

(a) Primary storage containers used at a bulk pesticide storage facility to hold bulk liquid pesticide or separate bulk pesticide rinsate 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 aboveground containers shall be thoroughly cleaned.

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

13.16. Anchoring of Storage Containers

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

13.17. Filling

Storage containers may not be filled to more than 95% of capacity unless:

(a) The storage container construction or location provides constant temperature control; or

(b) The storage container is an approved portable refillable container; or

(c) Manufacturers' specifications allow it.

Notes

II Part 13.0 C

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