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Cecchini Trucking Company Inc. SPCC Plan Apri 1 2020 Page 33 of 63 The storage tank in the maintenance shop (Table 5) is shop -fabricated and is a smaller Category 1 tank (0 to 1,100 -gallons) which only requires periodic inspections with no formal external inspection required. Please see Section 6.0 in the STI SP001 Guide. The facility documents all inspections of these tanks using the STI SP001 Inspection Checklist (Monthly & Annual) which can be found in Appendix C in this Plan. The results of all inspections (monthly and annual) are kept at the facility. Table 7 — Tank Configuration and AST Category — STI SP001 Tank Configuration Tank has CRDM? Tank has Spill Control? AST Category Single wall AST in contact with ground no no 3 Single wall AST in contact with ground no yes 2 Elevated tank yes yes 1 AST with RPB yes yes 1 AST with double -bottom yes yes 1 Double-wall AST with overfill prevention yes yes 1 Double-wall AST without overfill prevention yes no 3 Vertical tank resting on concrete conforms with definition of RPB es yes 1 Vertical tank resting on concrete (conforms with definition of RPB) yes no 3 Table 8 — Table of Inspection Schedules — STI SP001 AST Type and Size (U.S. gallons) Category 1 Category 2 Category 3 Shop -Fabricated ASTs 0-1100 P P P, E&L(10) (0-4164 liters) [P, E&L(5), 1(10)] 1101 -5,000 P P, E&L(10) or (4168-18,927 liters) [P, E(10), 1(20)] [P, E&L(5), 1(10)] 5,001 - 30,000 P, E(20) or or (18,931-113,562 liters) [P, E(5), L(10)] [P, L(1), E(5)] 30,001 - 50,000 P, E(20) P, E&L(5), 1(15) P, E&L(5), 1(10) (113,566-189,271 liters) Portable Containers P P P** Also, when each tank is taken out of service for material repairs, Cecchini Trucking will consult with a qualified tank professional who will determine the following: • The type of integrity inspection that will be conducted (i.e., visual or other non- destructive method),