Foundation Work. All footing and foundation work shall consist of poured-in-place reinforced concrete with a minimum 28-day strength of 3,000 psi and poured with a maximum slump of 4''. All footings must rest on undisturbed virgin soil or on engineered structural fill, and be a minimum of 2'-6'' below finished grades.
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Foundation Work. All footing and foundation work shall consist of poured-in-place reinforced concrete with a minimum 28-day strength of 3,000 psi and poured with a maximum slump of 4''". All footings must rest on undisturbed virgin soil or or, on engineered structural fill, and be a minimum of 2'-6'' " below finished grades. Exterior foundation pad as required for nitrogen tank.
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