Federal Superfund Sites
||AGL implemented a project operation and work plan at a chemical plant
listed on the National Priorities List as a Federal Superfund site on
Long Island. The plan included opening 17 underground storage tanks
for cleaning, installing six borings to groundwater and stainless steel
groundwater monitoring wells. The horizontal and vertical extent of
contamination was determined and remedial alternatives developed. In
addition, over 165 drums of hazardous material were sampled for disposal according to Federal and State regulations.
New York State Inactive Hazardous Waste Sites
||An industrial facility site that contained contaminated soil was listed
as a NYS Inactive Hazardous Waste Site. AGL performed a Phase II site
sampling and conducted a Remedial Investigation and Feasibility
Study (RI/FS). As a result, the Phase III site remediation included
excavation of former leaching chambers and cleanout of on-site drywells.
AGL identified the source of groundwater contamination for a dry
cleaner. The implementation of contaminated soil excavation and
installation and operation of a soil vapor extraction system
successfully remediated the property. The site was subsequently
delisted from the State registry.
At an industrial facility, over 10,000 drums of hazardous material had leaked into the soil. AGL negotiated a workplan with the New York
State Department of Environmental Conservation (NYSDEC) for use of
geophysical survey and groundwater monitoring after the removal of
drums and excavation of contaminated soil.
Storage Tank Management
||AGL was retained by an agricultural facility to identify how to consolidate gasoline, fuel oil, waste oil and diesel tanks to bring the site into regulatory compliance. The scope of work included registration of 32 existing tanks and development of engineering drawings for new tanks.
At a manufacturing facility, AGL coordinated removal of fifty (50) 3000-gallon underground fuel oil storage tanks. We also remediated soil contaminated with fuel oil, removed and disposed of tank bottoms and sludge. Groundwater monitoring wells were installed to monitor the site for the NYSDEC.
Phase III Remediation
||An electrical supply company was closed by the NYSDEC due to extensive
contamination in the soil and groundwater caused by gasoline, solvents
and waste oil. The contaminant sources were identified as floor drains
and leaking underground storage tanks. AGL installed two soil vapor
extraction systems to remediate the areas surrounding the floor drains
and leaking waste oil tanks. Bioremediation, enhanced with the
application of oxygen-releasing compound, into the soil and groundwater
led to the successful remediation of the site.
AGL has installed soil vapor extraction systems at several dry cleaner
sites throughout Long Island to remediate soil and groundwater
contamination caused by former business practices. The same technology
has been applied to active and abandoned gas stations to achieve
remediation of petroleum and MTBE contamination.
Indoor Air Quality
||At a large office building, several employees experienced dizziness,
fainting, nausea and rashes. Repeated illness and a carbon monoxide
scare led to evacuation of the area by the local fire department. AGL
investigated the air quality concerns including temperature, relative
humidity, carbon monoxide, carbon dioxide, dust, particulates,
asbestos, formaldehyde, and volatile organic compounds. The
investigation of the HVAC system led to complete duct cleaning and
installation of HEPA filters.
The employees were successfully returned to the workspace.