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this section or within 50 feet horizontally from the storage area, whether or not protected <br />by a shielding structure. <br /> <br />(4) Air Intakes. No exterior storage area for regulated materials shall be within 75 <br />feet of any air intake. <br /> <br />(5) Canopies. Portable tanks and cylinders stored outside of building shall be stored <br />under a canopy constructed of non-combustible materials. Such exterior storage shall not <br />be considered indoor storage. An automatic fire-sprinkler system, or alternative systems <br />as determined by the Fire Chief for materials incompatible with water, shall be provided <br />for canopies installed for the storage of regulated materials. <br /> <br />(6) Stationary Tank Controls. Controls on stationary tanks shall be in accordance <br />with the following: <br /> <br />Ii] Pressure-relief devices shall be vented to a treatment system designed in accordance <br />with the provisions of subsection (e)(3) of this section. <br /> <br />[ii] Where filling shall be provided with a means of local exhaust. Such exhaust shall be <br />designed to capture fumes and vapors. The exhaust shall be directed to a treatment <br />system designed in accordance with the provisions of this subsection (e) (3). <br /> <br />[iii] Stationary tanks shall be provided with a means of excess flow control on all tank <br />inlet or outlet connections. Inlet connections that are designed to preclude back flow and <br />pressure-relief devices are exempt from this requirement. <br /> <br />(7) Gas Cabinets for Leaking Cylinders. <br /> <br />[i] At least one gas cabinet or exhausted enclosure shall be provided for the handling of <br />leaking cylinders. The cabinet or enclosure shall be within or adjacent to the exterior <br />storage area and connected to a treatment system as specified in subsection (e)(3) of this <br />section. <br /> <br />[ii] A gas cabinet or exhausted enclosure need not be provided for leaking cylinders if all <br />cylinders are stored within gas cabinets or exhausted enclosures. <br /> <br />(8) Local Exhaust for Leaking Portable Tanks. <br /> <br />[i] A means of local exhaust shall be provided to capture regulated material leaking from <br />portable tanks. The local exhaust may consist of portable ducts or collection systems <br />designed to be applied to the site of a leak in a valve or fitting on the tank. The local <br />exhaust system shall be connected to a treatment system as specified in subsection (e)(3) <br />of this section. <br /> <br />125 <br /> <br /> <br />