8.1. SR 06-03-2019 - Laserfiche WebLink

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1. If contaminated soils are encountered and not disturbed by the project design or the Contractor's activities,the Contractor shall notify the Owner,the Engineer and all appropriate agencies. The Contractor may then proceed with its work, however, no permanent construction is permitted which could limit access to the area until releases have been granted from the appropriate authorities and a mitigation plan is developed. 2. The Contractor shall cooperate with the authorities to determine the extent of the contamination. 3. All efforts and delays to the Contractor's work shall be considered incidental. D. CONTAMINATED SOILS ENCOUNTERED-WITH DISTURBANCE OR PROPOSED DISTURBANCE 1. Immediately notify the Owner and the Engineer. 2. Cooperate with the Engineer's Soils Consultant to determine the extent and type of contamination present. 3. If disturbance has already occurred,the Contractor shall: (a) Immediately notify the Owner,the Engineer and all appropriate agencies, (including the Minnesota Duty Officer for spills 800-422-0798, if appropriate). (b) Isolate and secure the area. (c) Make a determination of the potential risks of fire,fumes,spreading the contamination,etc. (d) Notify neighboring residents, if the potential is significant. 4. The Contractor shall then, participate in the development of a mitigation plan, if asked,and be available to conduct the mitigation. E. BACKFILLING OPERATIONS 1. Once the tank and mitigated soils have been removed,the site shall be backfilled with granular material obtained from other on-site excavations and on-site stockpiles as directed by Owner. 2. All backfill shall be compacted in accordance with the Quality Compaction Method. F. DISPOSAL 1. The Contractor shall dispose of the tank in compliance with all local,state,and federal requirements. ****END OF SECTION**** Elk River Landfill, Inc. -R16.115896 UNDERGROUND TANK REMOVAL March 2019 PAGE 02115-2 V122217©Bolton&Menk,Inc.2018,All Rights Reserved