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Leak Test: 191(g)(9)/192(k)(10) Secondary Containment Assessment The secondary containment calculations provided for on this page are for secondary containment The waste oil storage tank and ancillary equipment Were systems that utilize a double walled tank for containment. pneumatically pressure tested during the inspection.The system held a pressure of 1.25 psig for 15 minutes with no pressure drop. Please refer to Attachments"A"and"B"for arrangement of tank and ancillary equipment including secondary containment. ntegrity testing findings: Based on the above noted integrity test and the Design of tank:66264.193(e)(3) esults obtained from that test,the tank has sufficient integrity for its intended use. Initials: Z)-8 Provide a brief description of the construction and design of the lank,including materials of construction,corrosion protection measures for both inner and outer surfaces of the metal tanks, and leak detection equipment. Tank Drawing:191(g)(2)(E)/192(k)(2)(E)) The waste oil storage tank is of double wall construction,fabricated of Tank and Fittings:See Attachment"A" welded 8 gauge carbon steel.No corrosion protection is provided for the inner liner and none is required due to the petroleum based contents. Ancillary Equipment:See Attachment"B" External corrosion protection is provided by a coating of primer and enamel paint.A level indication device is installed in the primary Tank Dimensions: containment section.An audible high level alarm is also installed.When tested during the inspection,it was in good working order. Primary Containment:4'-2"wide x 3'-7"deep A daily documented inspection is performed which will detect any leaks Secondary Containment:5'-0"wide x T-9"deep within 24 hours per 22CCR66265.1920)(3). Tank Height: Overall:5'-1 1/2" Primary Containment:4'-6" Ancilla Conveyance System Volume Item Len th CrossSection Area Volume Copper Tube 1 125"OD 910° 0.785 in 715 in 3.09 allons Secondary Containment:4'-9 1/2" 1"Graco Husk 1040 Pum 0.79 gallons Transfer Hose 1.00"ID 60° 0.795 m 47 in 0.20 gallons Tank Gross Capacity(Volume):500 gallons Total Volume 4.08 gallons The combined volume of the tank and ancillary equipment: 500 gallons(primary)+4.1 gallons(ancillary equipment)=504.1 gallons The secondary containment capacity of 670 gallons will contain 100%of the tank capacity and ancillary equipment.This meets the requirement specified in 22CCR66265.1920)(1).