(a) Compressed gas and compressed gas cylinders. Compressed gas shall be classified as a hazardous material and shall be stored in accordance with the general requirements of subsection (a) of this section and the requirements in subsection (b) of this section for storing hazardous materials and petroleum products. Compressed gases and compressed gas cylinders also shall be stored in compliance with the following requirements:
(1) Cylinders of compressed gas shall be classified and labeled in storage as “filled” or “empty”. Empty cylinders are cylinders that have been certified to be empty or residual pressure or those that have been expended but still retain constant pressure. All empty cylinders that have been certified to be void of residual pressure are to be labeled “empty”. Filled and empty cylinders shall be separated and so shall any incompatible materials, such as oxygen, which shall be stored 100 feet from acetylene or hydrogen unless separated by an approved firewall.
(2) If a cylinder valve leak is discovered, the valve shall be closed immediately. If the leak continues after the valve is closed, the cylinder shall be moved to an outside area and the appropriate safety officials shall be notified. If the gas is toxic or flammable, it shall be isolated in an area away from buildings and public roads, if possible. Open flames shall not be used to test for leaks in compressed-gas cylinders.
(3) Flame or spark-producing items shall not be used within 50 feet of storage areas for compressed gas. Cylinders of compressed gas shall not be allowed to come in contact with fire, sparks, or electrical circuits.
(b) Storage of pesticides. Pesticides shall be classified as a hazardous material and shall be stored in accordance with the general requirements of 24.0815, the requirements of 24.0816 for hazardous materials and petroleum products, and the requirements of 24.0601 et seq. ASAC.
(c) Storage or medical waste. Medical waste, as defined in section 24.0804(17), intended for disposal shall be securely stored in an enclosed and locked areas under the control of director of medical services.
(d) PCB’s and PCB items. In addition to the general requirements in section 24.0815(a), the following special provisions apply to PCB’s at concentrations of 50 ppm or greater and to PCB items having PCB concentrations of 50 ppm or greater that are stored for disposal:
(1) Non-leaking and structurally undamaged large PCB high-voltage capacitors and PCB contaminated equipment that have not been drained of free-flowing dielectric fluid may be stored on pallets next to a storage facility that meets the requirements of section 24.0815(a). PCB-contaminated electrical equipment that has been drained of free-flowing dielectric fluid is not subject to the storage provisions of this section. Storage of the items discussed in this paragraph shall be permitted only when the storage facility has immediately available unfilled storage space equal to 10 percent of the volume of the capacitors and equipment stored outside the facility. Any equipment so stored shall be checked weekly for leaks.
(2) No item of movable equipment used for handling PCB’s and PCB items in the storage facilities that comes in direct contact with PCB’s shall be removed from the area of the storage facility unless it has been decontaminated as specified in the description of appropriate decontamination requirements.
(3) All containers used for storing liquid PCB’s shall comply with the following shipping-container specifications of USDOT regulations: 49 CFR 178.80 (specification 5, container without removable head), 178.102 (specification 6D, overpack, with (specification 2S, 178.35) or 2SL (178.35a, polyethylene containers) of 178.116 (specification 17E, container). All containers used for storing non-liquid PCB’s shall comply with the specifications of 49 CFR 178.80 (specification 5, container). As an alternative, containers larger than those specified in USDOT specifications 5, 5B, or 17C may be used for non-liquid PCB’s if the containers are designed and constructed in a way that will provide as much protection against leaking and exposure to the environment and are of the same relative strength and durability as the USDOT-specification containers.
(4) The date on which the PCB articles and PCB containers are placed in storage shall be marked on the exterior of the articles and containers. Storage containers specified under this section shall have a record that includes the quantity of each batch of PCB’s and the date the batch was added to the container.
(5) Secondary containment sufficient to contain twice the volume of the largest container being used or 25% of the total volume of PCB’s and PCB items being stored, whichever is greater, is required.History: Rule 02-01, eff 30 Aug 01.