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v <br />OPTION'IA <br />ARTICLE 3, SECTION 2631 <br />MOTOR VEHICLE OR NONMOTOR VEHICLE FUEL TANK <br />CONSTRUCTION STANDARDS <br />Secondar containment provided. <br />2. Primary containers shall be product tight. <br />3. Secondary containers <br />A. Thickness, density, compos tion, and product compatibility. <br />B. Sized to contain unauthorized releases for sufficient time to allow <br />detection and removal. <br />4. Secondary container volumetric requirements <br />A, Single primary container . 100%. <br />Multiple primary containers - 150% of largest primary container or <br />10% above aggregate. <br />`J. Document interproduct compatibility <br />hours5. Secondincontainers open to rainfall. <br />A. Volultric requirement - 24 of 25 year stormaddition <br />containerprimaFty , <br />6. Pore space o granular material used as backfill for the primary containers. <br />A. Refer to ction 2631(g). <br />7. Secondard contain r equipped with a collection system. <br />A. Designed to: <br />1. Accumulate <br />2. Temporarily s ore <br />3. Permit removal f: <br />a. Precipitati0 <br />b. Subsurface in iltration <br />c. Released hazar us substances from primary container(s). <br />8. Floor of Secondary container <br />A. Constructed on firm base <br />B. Sloped to collection sump\ia <br />per foot). <br />1. One or more access canstalled in sump <br />a. Sized to allow ref collected liquid <br />b. Extend to ground <br />c. Perforated in sumn.d. Covered with a loter oaf cap or within a secured facility <br />e. Thick enough to wd anticipated stresses <br />f. Construction mate1) Are not weakestored p duct <br />2) Will not donapture, or sk constituents to be analyzed. <br />9. Membrane liner specifications: <br />A. Refer and comply with Article 3, Section 2631 - k, 1, and m. <br />