INSTALL_1995 TANK TOP UPGRADE - Laserfiche WebLink

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19. Secondary container other than double -walled tanks (includes interception J and detection systems). [Section 2633 (fl A. Backfill in secondary container. [Section 2635 (c) 1-81 _ B. Pore space of granular material used as backfill for primary container(s) complies with Section 2631 (g). [Engineering data to support capacity requirement]. _ C. Two or more primary containers within secondary container. (include information on product compatibility) D. Secondary container capable of precluding highest anticipated groundwater. _ E. Secondary container sloped to a monitoring sump from which Leakage or precipitation can be detected and removed. _ F. Water tight corner which extends at least a foot beyond each boundary of the secondary container excavation, sloped to drain away from excavation. 20. Secondary container(s) thickness, density, composition, product compatibility. _ Sized to contain unauthorized releases from primary containers to allow sufficient time for detection and removal. [Section 2631 (01 21. Secondary container(s) volumetric requirements: [Section 2631 (e) (1) and (2)] A. Single primary containers = 100%. a. Multiple primary containers = 150% of largest primary container or 10% above aggregate. 22. Secondary container(s) open to rainfall. [ Section 2631 Ml Volumetric requirements - 24 hours of 100 year storm in addition to primary container volumes. 23. Secondary container floor. [Section 2631 (i)1 A. Constructed on firm base. B. Sloped to collection sump ( 1/8 inch per foot). (1) One or more access casings installed in sump. (a) Size to allow removal of collected liquid. (b) Extended to ground surface. _ (c) Covered with a locked waterproof cap or within a secured facility. (d) Thickness allows for anticipated stresses. _ (e) Construction materials are not weakened stored product or will not donate, capture, or mask constituents to be monitored. 24. Membrane liner specifications. [Section 2631; k, 1, and MI 0