Waste materials
from a large Virginia manufacturing facility including asphalt,
roofing materials, metal manufacturing debris, used pallets
and soil contaminated with hydraulic oil had been disposed
of on the property in the past. In 1996, the Virginia Department
of Environmental Quality (VDEQ) required this area to be closed
in accordance with VDEQ Solid Waste Regulations. In addition,
VDEQ required a number of contaminated on-site areas that
had been impacted by plant operations to be remediated.
AEM was contracted
to design and oversee closure of a former disposal area at
a large industrial facility in Virginia by construction
of
a Construction and Demolition Debris (CDD) Landfill Cap,
and to assess the various other impacted areas at the plant.
AEM
provided
project management for compliance with all regulatory requirements
associated with the CDD Landfill Closure, including negotiation
of a Consent Order for the closure of the landfill. AEM was
responsible for all required activities including the development
of closure plans, groundwater assessment and monitoring plans,
and installation of the groundwater monitoring system.
To evaluate
alternatives for the design of the CDD Landfill Cap AEM designed
a sampling plan and sampled waste and soil in the landfill
area to define the volume of waste, the types of waste present,
and the required boundaries of the proposed CDD Landfill
Cap.
In addition to defining the extent of waste to be capped,
AEM installed and sampled three groundwater monitoring wells
to determine the extent, if any, of impacted groundwater,
and to design a groundwater monitoring plan as required
by
VDEQ regulations and the Consent Order.
AEM produced
construction drawings and specifications in accordance with
VDEQ regulations for the CDD Landfill Cap. The design documents
were submitted to VDEQ for approval in a Closure Plan. Other
components of the Closure Plan included a Sediment and Erosion
Control Plan, Groundwater Monitoring Plan, and Post Closure
Care Provisions.
To address
other areas of concern in the facility where soil contamination
was identified, AEM conducted soil sampling, worked with the
regulatory agency, and developed drawings and specifications
for excavating soil contaminated by hydraulic oil and lubricants
in various area of the plant. Plans for demolition of a septic
tank and leach field that was no longer in use were also developed.
The construction of the CDD Landfill Cap and the excavation
of contaminated soil in various parts of the facility were
completed on schedule, and within the budget established at
the start of the project.
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