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RECEIVED JUL 2 8 2014 12.4 Bolted Sealed Top Manway ENVIRONMENTAL HEALTH (DEPARTMENT 12.4.1 Sealed manways are available in 14, 18, 20 and 24 in. sizes on certain tanks in selected positions. Consult the manufacturer for placement positions. 12.4.2 The sealed manway shall be constructed of polyethylene material. The bolts shall be polypropylene or other specified material. The gaskets shall be closed cell, crosslinked polyethylene foam and Viton• o -rings to seal the bolts. 12.5 Surge Protection Lid 12.5.1 The hinged lid is to be manufactured of polyethylene. The lid will be a 14 in. size with 11 in. access opening or 18" with 15" access. The opening of the lid is to be restricted by a tether. The lid is to be designed so that is will close when the pressure has been released. Check SII specification drawing for availability and position. 12.6 Tank Attachments — External Fill Pipes 12.6.1 External fill pipes shall be prepared per the customer approved drawings and specifications. All external fill pipes shall be supported at 3 ft. maximum intervals with a support structure independent of the tank (ground supported). All designs shall be done according to the specific needs of the customer. 12.6.2 All external fill pipes shall be constructed of PVC or other specified materials. 12.7 Tank Attachments —Internal Down Pipes 12.7.1 Internal down pipes shall be prepared per the customer approved drawings and specifications. All internal down pipes shall be supported at 5 ft. maximum intervals with a support structure welded to the inside of the primary tank (only available in tanks constructed with Type II resin). The support design may utilize a PVC clamp or other specified materials for support. All designs shall be done according to the specific needs of the customer. 12.7.2. All internal down pipes shall be constructed of PVC or other specified materials 13. Tank Accessories 13. Ladders 13.1 Ladders shall be constructed of galvanized mild steel or FRP 13.2 Safety cages shall be provided with ladders as optional equipment unless required by OSHA standards. 13.3 All ladders shall be designed to meet applicable OSHA standards. Reference: OSHA 2206; 1910.27; fixed ladders. 13.4 Ladders must be mounted to the tank to allow for tank expansion and contraction due to temperature and loading changes. All top ladder mounts shall be connected to integrally molded in attachment lugs that allow for tank movement due to temperature and loading changes. 13.5 Mild steel parts shall be deburred and galvanized 14.0 Tie Down Systems 14.1 The tie down system shall be designed to withstand 150 MPH wind loads. Tie down systems must meet seismic requirements per IBC 2009 I CBC 2010 code with seismic loads :5.445g (Seismic Design Category "D" - Fa=1.0, Fv=1.5, Ss=1.4, S1=0.5). Anchor bolts shall be provided by the contractor per the calculations and the base plates for the system. A registered engineer's wet stamped calculations and or drawings may be required. 14.2 The tie down system shall be offered galvanized, 304 or 316 stainless steel.