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30 March 2019 AdvancedGeo <br /> AGE Project No. 10-1787 Environmental <br /> Page 2of6 n <br /> 2.1.3. Tank Construction <br /> The AST manufacturer specifications are included in Appendix A and in described with <br /> the following features: <br /> • Cuboid in shape <br /> • Horizontal with orientation from east to west — 22 CCR § 66265.192 (k)(1) <br /> • Construction is of 1-inch steel for both the inner and outer shell (Appendix A) <br /> — 22 CCR § 66265.192 (k)(2)(A&B) <br /> • Corrosion protected coating has been applied by the manufacturer during the <br /> construction process — 22 CCR § 66265.192 (k)(5) <br /> • Is not anchored to the ground due to the height of the tank being less than four- <br /> feet tall. <br /> • Other identifying features are the "Hazardous Waste" content removable labels <br /> visible on the north face of the tank. <br /> 2.1.4. Tank Ancillary Equipment <br /> The AST ancillary equipment includes the following: <br /> • Visual overflow gauge. <br /> • Audible overflow sensor alarm. <br /> • Emergency overflow pneumatic shutoff solenoid system. <br /> • Primary and secondary tank emergency vent fittings <br /> • Waste oil catch pans. <br /> • Inline pump <br /> • Waste oil conduit piping <br /> 2.2. OVERFLOW PROTECTION <br /> The overflow protection system is comprised of the visual, audible and pneumatic <br /> emergency overflow system. The visual gauge is a direct reading free glide piston, visible <br /> through the site container attached to the top of the AST. The free glide piston is sealed <br /> to prevent liquid vapors from forming within the site container. The piston is attached to a <br /> bobber with an insulated cable which rises and lowers with the level of fluid within the <br /> AST. When the fluid level reaches 75% of the tank total capacity an audible alarm sounds, <br /> warning Facility staff to verify the AST condition. The pneumatic emergency overflow <br />