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• OPTION 'I A 0 <br />ARTICLE 39 SECTION 2631 <br />MOTOR VEHICLE OR NONMOTOR VEHICLE FUEL TANK <br />CONSTR�UCTTIION STANDARDS <br />0k it ter. Secondard containment provided. <br />N,(s'2. prima containers shall be product tight. <br />OKPjj� f Secondar containers <br />A. Thickn ss, density, composition, and product compatibility. <br />B. Sized t contain unauthorized releases for sufficient time to allow <br />detectio and removal. <br />6kp�_4. Secondary cont finer volumetric requirements <br />A, Single pri container = 100%. <br />B. Multiple pri ry containers = 150% of largest primary container or <br />10% above agg gate. <br />1. Document in erproduct compatibility <br />N,4 5. Secondary containers pen to rainfall. <br />A. Volumetric requireigent r 24 hours of 25 year storm in addition to <br />primary container volumes. <br />bPore space of granular ma erial used as backfill for.the primary containers. <br />A. Refer to Section 2631 ). <br />OV, P 1 J, 1 Secondard container equippe with a collection system. <br />A. Designed to: <br />1. Accumulate <br />2. Temporarily store <br />3. Permit removal of: <br />a. Precipitation <br />b. Subsurface infiltration <br />c. Released hazardous sub tances from primary container(s). <br />rh Z7 n 8. Floor of Secondary container l <br />A. Constructed on firm base <br />B. Sloped to collection sump (1/8" per foot). <br />1. One or more access casings installed in sump <br />a. Sized to allow removal of collected liquid <br />b. Extend to ground surface <br />c. Perforated in sump region. <br />d. Covered with a locked waterproof cap or within a secured facility <br />e. Thick enough to withstand anticipated stresses <br />f. Construction materials: <br />1) Are not weakened -by stored product <br />2) Will not donate, capture, or mask constituents to be analyzed. <br />VA 9. Membrane liner specifications: <br />A. Refer and comply with Article 3, Section 2631 j, k, 1, and m. <br />