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0. Alternate construction for new underground storage tanks containing motor vehicles Net CSection 26331, <br />® (1) Monitoring and response ptan CSection 26341. <br />(2) Underground storage tank composed of.... <br />(a) Fibergtass reinforced plastic. <br />(b) Cathodicalty protected steel. <br />(c) Steet clad with fibergtass reinforced ptastic. <br />(d) Other material that complies with section 2631 and 2632. <br />(3) Floor of leak interception and detection system constructed on a firm base and sloped to <br />cottection sump (use of membrane liners comply with section 2631 (d) (6) requirements.) <br />(4) Access casings instatted in the cottection sump of the secondary containment system with <br />backfin in the interstitiat space. The access casing shaft meet alt of the following: <br />® Designed and instatted to at Low the Liquid to flow into the casing. <br />® Sized to allow removat of cotteeted liquid and abte to withstand att anticipated apptiec <br />stresses. <br />Constructed of materiat that Witt not be stmcturatty weakened. <br />Screened along entire vertical zone of permeable material. <br />Capabte of preventing leakage of any hazardous substance from the casing. <br />Extend to the ground surface and covered with a Locked waterproof cap. <br />® Capable of meeting S.J. Ca. PHS-EHO 'Jell Standards. <br />Leak interception and detection system shah prevent the leaked hazardous substance frog <br />entering ground water. <br />14. INTERSTITIAL SPACE MONITORING <br />A. Visuat monitoring CSection 2632 CO (1)1 <br />(a) Exterior surface and floor beneath tank monitored by direct viewing <br />(b) Daily visual inspections <br />(c) Liquid levet in tank to be recorded at time of inspection <br />(d) if liquid observed around or beneath primary tank, owner will determine if an unauthorized reles <br />has occurred. <br />3. Mechanicat or etectronic monitoring (Section 2632 Cc) (2)1 <br />`r (a) CantimxKa monitoring system connected to an audible and visual alarm system. <br />Monitoring equipment to bee installed <br />Manufacturer- 4Et (.8AP-C O <br />_ Modet Number: ESC AlMutc8L Pik <br />Sensor Type: — Vapor Liquid _ Soth. <br />Sensor/Panel specifications. <br />Location(s) for sensors: �un►tQS <br />Tank: 1NTEl2-ST47iAL Piping._ <br />Dispenser: SLOPE BA Gu- To 5✓ W 5 . (w 1 ep-r"4-0 OCK S <br />C. Monitoring and response ptan submitted [Section 2632 (d) (1) S C2)i. <br />45. Any speciat accessories, fittings, coatings, or linings not inherent within the initiat design of the 1° tank or <br />doubte-~ma(l UST. CSaction 2631 (b)l <br />A. Approved by a nationatty recognized independent testing organization. <br />3. Demonstration of integrity with the primary and/or secondary containment. <br />6 <br />