COMPLIANCE INFO_FILE 2 - Laserfiche WebLink

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REPRODUCED AT GOVERNW N1 EXPENSE • C indicated by the Contracting Officer until such time that the Government Consultant can complete its soil tests. If tests determine the soil to be contaminated, the Government may exercise its options for removal and disposal (or treatment) of the contaminated soil, as applicable and in the best interests of the Government. The Contracting Officer will then direct the Contractor as to whether the soil can be used as backfill, must be treated, or must be disposed of as hazardous waste. (See Section 01560, para. 2.4.4). In cases of obvious or suspected contamination of more than 50 ppm total hydrocarbons, the soil shall be placed on a plastic film and covered. 1.4.2 Backfilling: The Contractor must leave the tank cavity and trenches open to allow the soil tests to be performed by the Government Consultant. Provide safety barriers. The Contractor must backfill only ..ith the Contracting Officer's approval. PART 2 - PRODUCTS 2.1 SOIL MATERIALS: In general, shall be clean and free of debris, roots, wood, scrap material, vegetable matter, refuse, soft unsound particles, frozen, deleterious, or objectionable materials. 2.1.1 Backfill for Trenches: Shall conform to the general requirements for soil materials above and shall be obtained from a source off Government property at the Contractor's expense and/or consist of soil stockpiled from excavation if the Government Consultant determines soil to be clean and its use is approved by the local regulatory agency. 2.1.2 Backfill for Tank Cavities: Backfill for the tank cavities shall consist of native materials which are free of boulders, cinders, roots debris, wood scrap material and other unsatisfactory material. The backfill shall be obtained from a source off Government property at the Contractor's expense and/or consist of soil stockpiled from excavation if the Government Consultant determines soil to be clean and its use is approved by the local regulatory agency. PART 3 - EXECUTION 3.1 EXCAVATION: Excavation of every description, regardless of material encountered, shall be performed as indicated. All unsatisfactory or contaminated material and surplus material shall be removed from the site or stockpiled as directed by the Contracting Officer. In the event that it is necessary to remove more unsatisfactory material than originally specified, the Contracting Officer shall be notified and an adjustment in the contract price will be considered in accordance with the contract. Excavations carried below the depths indicated without specific directions, shall, except as otherwise specified, be refilled to the proper grade with satisfactory material and compacted to at least 95 percent of ASTM 1557, Method D maximum density. All additional work of this nature shall be at the Contractor's expense. 12-88-3458 02203-2