Backfill material shall be obtained from [the location indicated on the
drawings] [off-site]. Backfill shall be classified in accordance with ASTM
D 2487 as GW, GP, GM, GC, SW, SP, SM, SC, MH, CL, or CH and shall be free
from roots and other organic matter, trash, debris, snow, ice or frozen
materials. If off-site materials are used, soil classification test
results shall be approved prior to bringing the material onsite. The
testing frequency for backfill material shall be 1 per 1000 cubic meters
yards or a minimum of 1 test. Non-contaminated material removed from the
excavation shall be used for backfill in accordance with Paragraph
BACKFILLING.
PART 3
EXECUTION
3.1
GENERAL REQUIREMENTS
3.1.1
Safety Guidelines
Personnel shall abide by the safety guidelines specified in Section 01351
SAFETY, HEALTH, AND EMERGENCY RESPONSE (HTRW/UST).
3.1.2
Use of explosives or burning debris will not be allowed.
3.1.3
Protection of Existing Structures and Utilities
The Contractor shall take all necessary precautions to avoid damage to
existing structures, their appurtenances, monitoring wells, or utilities
that may be affected by work activities. Any damage to [utilities]
[monitoring wells] resulting from the Contractor's operations shall be
repaired at no expense to the Government. The Contractor shall coordinate
with the installation to locate underground utilities prior to beginning
construction. Utilities encountered which were not previously shown or
otherwise located shall not be disturbed without approval from the
Contracting Officer.
3.1.4
Shoring
Shoring requirements shall be provided in accordance with Section 01351
SAFETY, HEALTH, AND EMERGENCY RESPONSE (HTRW/UST).
3.2
TANK CONTENTS VERIFICATION
Sampling and analysis shall be conducted in accordance with the approved
Sampling and Analysis Plan and Section 01450A CHEMICAL DATA QUALITY CONTROL.
3.2.1
Sampling
**************************************************************************
NOTE: If the contents have been properly
characterized or already removed and disposed,
delete the non-applicable portions of the
specification.
The designer will detail the sampling requirements
(number of samples and analytical methodology) based
on the state/local regulations and EM 1110-3-178
(i.e. tank contents, contaminated water (pumpable
liquids and sludges), stockpiled soils, and in situ
SECTION 02115A
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