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OPTION lA <br />ARTICLE 3, SECTION 2631 <br />MOTOR VEHICLE OR NONMOTOR VEHICLE FUEL TANK <br />CONSTRUCTION STANDARDS <br />1. Secondard containment provided. <br />:Z:12. Primary containers shall be product tight. <br />3. Secondary kontainers <br />A. Thickn, density, composition, and product compatibility. <br />B. Sized contain unauthorized releases for sufficient time to allow <br />detectand removal. <br />4. Secondary co tainer volumetric requirements <br />A, Single pr mary container = 100%. <br />B. Multiple imary containers = 150% of largest primary container or <br />10% above ggregate. <br />1. Docume t interproduct compatibility <br />5. Secondary conta ners open to rainfall. <br />A. Volumetric equirement = 24 hours of 25 year storm in addition to <br />primary cont iner volumes. <br />6. Pore space of gr nular material used as backfill for the primary containers. <br />A. Refer to Sec ion 2631(g). <br />7. Secondard contait r equipped with a collection system. <br />A. Designed to: <br />1. Accumulat <br />2. Temporari y store <br />3. Permit re oval of: <br />ate. Preci i.j;ation <br />b. Subsu ace infiltration <br />c. Releas d hazardous substances from primary container(s). <br />8. Floor of Secondary 1container <br />A. Constructedon irm base <br />B. Sloped to colle tion sump (1/8" per foot). <br />1. One or more access casings installed in sump <br />a. Sized t allow removal of collected liquid <br />b. Extend o ground surface <br />c. Perforat d in sump region. <br />d. Covered ith a locked waterproof cap or within a secured facility <br />e. Thick en ugh to withstand anticipated stresses <br />sf. Construction materials: <br />1) Are n t weakened by stored product <br />2) Will n t donate, capture, or mask constituents to be analyzed. <br />--Membrane liner-specifictions: - .- ----- --- <br />A. Refer and comply wit Article 3, Section 2631 j, k, 1, and m. <br />