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A WARNING 1.3.4.10.Callyoursales representative priortotank purchase In a nontraffic installation,ensure that the area abovethetankis foradditional information ifthe burial depth is to be greaterthan notsubjected to traffic or other types of loads,which could cause 7 feet[2.1 meters]. damage to the tank,and could result in death orserious injury. 1.3.4.11.If you are in the process of installing a tank and need 1.3.4.5.Fuel tanks must have a cover depth as shown to considera deeper burial than the one given forthe tank that in Table 1-1. was ordered,contact technical support(eogupport@zcicom) 1.3.4.6.Forfuel tanks,as a minimum,tank owner must comply with to discuss available options. relevantfire codes–in the US,National Fire Protection Association(NFPA) 1.3.4.12.If a surface pad is used,surface pads must extend 30 and 31;and in Canada,the National Fire Code of Canada andlorap- a minimum of 12 inches[30 cm)beyond the tank in all directions. plicable local codes forfuel tanks.See Table 1-1 forthose requirements. 1,3.4.13.If there is an unattached riser,it must not transmit load from the concrete slab to the tank.A minimum space of 6 inches[15 cm]is required between the bottom of the riser and the top of the tank. Depth of Cover Minimum Requirements for Fuel Tanks 1.3.4.14.Traffi c I oa d s fro In th e to p sla b m ust n ot b e transmitted to a containment sump ora riser.A minimum No Traffic Options(US Installations) space of 3 inches[76 cm]is required between the riser •24"[60 cm]backfill or sump and the slab. •12"[30 cm]backfill+4"[10 cm]reinforced concrete 1,3.5.TANK SPACING •12"[30 cm]backfill+6"[15 cm]asphalt No Traffic Options(Canadian installations) NOTE:In certain excavations with unstable soil, where shoring is permanently in place,the excavation •24"[60 cm]backfill might be classified as a stable-soil excavation.Thetank Traffic Options(US Installations) owner should have a qualified engineer certify that the •36"[91 cm]backfill excavation would remain stable for the expected life •18"[46 cm]backfill+6"[15 cm]reinforced concrete of the tank installation. •18"[46 cm]backfill+8"[20 cm]asphalt 1.3.5.1. GENERAL Traffic Options(Canadian installations) 1.3.5.1.1.The following are minimum spacings and must be •39"[100 cm]backfill increased as needed to accommodate deadmen oranchorslabs. •18"[46 cm]backfill+6"[15 cm]reinforced concrete 1.3.5.1.2.Always provide sufficient clearance to allow 18"[46cm] backfill+8"[20cm]unreinforced concrete the deadmen to be set outside of the tank"shadow." – --- f NOTE:These are NFPA 30 and 31 and See Figure 1-2. National Fire Code of Canada requirements. 1.3.4.7.Tanks otherthan fuel tanks must have a coverdepth as shown in Table 1.2. Tank Shadow Depth of Cover Minimum Requirements forTanks Other Than Fuel NoTraffic 0 tip ons(Alllnstallations) •12"[30 cm]backfill Traffic Options(Allinstallations) III •36"[91 cm]backfill •18"[46 cm]backfill+6"[15 cm]reinforced concrete •18"[46 cm]backfill+8"[20 cm]asphalt 1.3.4.8.The maximum burial depth for standard tanks is7feet VIII-=VIIMir=VIII=VIII=VIII=11111—IIT [2.1 meters]of coveroverthetopofthetank.However,tankscan _ _— _ be designed fora deeper burial. -VIII-=VIII—VIII=VIII—VIII==VIII-'-VIII 1.3.4.9.You must obtain priorwritten authorization from us to deviate o P, Width 2 x Width from a standard tank's maximum burial depth. I: PLANNING FOR INSTALLATIO' 07