Source Removal, Various
Sites, Former Navy Facility
Work Description
– General:
Chase Environmental Group
(Chase) was contracted by CH2M Hill Constructors, Inc. under
the Navy Southern Division Contract N62467-98-D-0995 to
provide removal of contaminated soil and groundwater from
various SWMU’s. Soil and contaminated media removal of approximately
6900 tons, 18,000 gallons of water and 350 ton non-hazardous
concrete slab. The project required excavation within and
under existing buildings and excavation around existing
structures. Work included removal and replacement of existing
structures, construction of new overhead pipe tower, installation
of piers for support of a wall footer, removal of 10 inch
concrete slab and temporary and permanent relocation of
utilizes. Additional work included removal and reinstallation
of machines and equipment, backfilling and replacement of
concrete slab. Other work included collection of environmental
samples for soil and groundwater samples using Geoprobe
R direct push equipment and injection of Hydrogen releasing
compounds for enhanced degradation of TCE in groundwater.
Upon completion CADD drawings of excavation areas were provided.
Waste characterization and disposal was provided for a soil,
contaminated media, groundwater and concrete slab.
This project required a
short completion schedule of 60 calendar days and was completed
on schedule and under budget.
Waste generated during the
project included approximately 1700 tons of hazardous waste
solids, 22,000 gallons hazardous waste liquids and 152 tons
non-hazardous solids.
Change Orders included foundation
shoring to excavate under building foundation, additional
water disposal and cleaning of two pits.
