Hazardous Site Remediation - Managed the sampling, classification and disposal of over 400 drums of residual and hazardous waste liquids and solids. This emergency response cleanup was completed in two weeks so that a prearranged auction of the property could take place as scheduled. Site remediation consisted of consolidation and field classification of numerous drums and containers, lab packing of miscellaneous chemicals, cleanup of a 150 foot long paint stripping line, spill contaminated soils, empty containers, and the recycling of selected wastes to minimize cleanup costs.

Residential Heating Oil Spill - A heating oil tank burst in the basement of a twin home destroyed by fire. AA&E conducted a site characterization to determine the extent of contamination beneath the basement slab. The remedial design/feasibility study (RI/FS) for this site included a vapor extraction test and analysis of the native soil to determine nutrient conditions. An in-situ remedial process was chosen based on the RI/FS that utilized a combination of bioremediation and vacuum enhanced recovery as the most cost-effective remedial alternative. Remedial goals were achieved without disturbing the basement structure, and the home was subsequently rebuilt on the original foundation.

Act 2 relief from liability was obtained for this project. As a result, the owner was able to maintain the value of his land and pass a clear title to his property.

Landfill Abatement/Groundwater - Completed and certified geologic and hydrogeologic portions of the closure permit for a 52-acre sanitary landfill, including a groundwater contamination assessment and abatement plan addressing leachate migration from an unlined cell. The primary fracture system carrying leachate was located by geophysical methods. Remediation consisted of sealing the fracture system with high-pressure grout to form a grout curtain, and the installation of groundwater recovery wells to control the hydraulic gradient. The state approved plan was implemented as part of the approved closure permit.

Abandoned Factory - Completed the cleanup and closure of a meat processing plant for the owner as a condition of sale. Closure activities included the sampling, classification and disposal of approximately 80 drums of chemical liquids, thirty tons of wastewater treatment chemicals, the removal of four underground storage tanks, the identification of asbestos containing building material, the sampling of transformers for PCB content, the remediation of contaminated soils, and the removal of debris from the site.

Printing Facility - Completed the cleanup and closure of a printing facility to prepare the property for sale. Closure activities included the sampling, classification and disposal of approximately 60 drums of chemical liquids, the delineation of PCB floor staining, the remediation of contaminated soils and gross floor staining, and the removal of debris from the site.

Closed Industrial Site - Completed the cleanup and disposal of 520 drums of waste material stockpiled at a closed site. The drums were characterized into eleven different waste streams and consolidated to minimize disposal costs. Bulk disposal was arranged for some of the waste, while the drum streams were sent to three different disposal facilities. The characterization and consolidation of the waste material prior to off-site disposal minimizes the cost for the client.

Residential Heating Oil Spill – The filter casing for a heating oil tank supply line leaked the contents of the tank onto the basement floor, and AA&E was asked to determine the extent of contamination beneath the basement slab and verify that the cleanup had been done correctly. The remedial design/feasibility study (RI/FS) for this site included removal of the basement slab, and excavation of the accessible soil for off-site disposal. Attainment sampling showed contamination remained at the site, and that further excavation would jeopardize the building foundation. Therefore, an in-situ remedial process utilizing a combination of bioremediation and vacuum enhanced recovery was selected as the most cost-effective remedial alternative. The basement was slab was replaced following installation of the remedial equipment, and remedial goals were achieved within four months.

Former Gas Station - Removal and disposal of five (5) underground storage tanks and approximately 1,200 cubic yards of petroleum contaminated soils. Developed and implemented a PA DEP approved site characterization plan. Installed numerous mini-wells, test probes, and established a groundwater monitoring network. Remedial activities consisted of the application of oxygen release compounds to enhance biodegradation and natural attenuation. Site was monitored until eight quarters of compliant groundwater data was collected, and closure obtained.

Operating Gas Station - Managed the site characterization and remedial design for gas station with leaking dispenser lines. Slug and falling head tests were used to measure aquifer parameters at the monitoring wells. Field mapping of joints, lineaments, and formation orientation influenced the remedial design and explained the unique orientation of the contaminant plume. The release affected 12 nearby residential wells, and a citizens participation program was established to provide the adjacent landowners with information and reports about the ongoing project.

Operating Fuel Station - Conducted the emergency response, site characterization, and remedial activities at a site with several hundred gallons of free product released in an area underlain by karst geology and controlled by a large fault traversing the site. Installed a pump and treat system to recover free product, but more importantly, to maintain control of the contaminant plume. This project was particularly interesting because of the heterogeneity of the limestone aquifer (transmissivities measure in long-term pump tests varied by an order of magnitude from 200 to 27,000 gpd/ft) and the structural elements of the bedrock. Because of the large fault dissecting the site, the contaminant plume was dispersing in a direction normal to groundwater flow. The aquifer was at a depth of 80 feet, and twenty-eight wells were drilled to define the extent of contamination.

The geophysical method applied at the site consisted of an EM34 ground conductivity survey conducted on a twenty-foot grid initially. This survey showed a southward dipping monocline with several sinkhole areas. A second survey was conducted on a 10-foot grid. The 10-foot grid clearly delineated the fault and was instrumental in explaining the orientation of the plume, and arriving at a realistic fate and transport model.

Demolished Factory with Hidden USTs – A Phase I assessment of an open lot formerly containing a trucking company warehouse. The distribution center had been demolished, and the ground leveled. No prior drawings were available for the site. An EM31 () ground conductivity survey was therefore conducted to search for underground storage tanks. The survey detected an anomaly that was then investigated with a test trench. The trench encounterd two (2) leaking underground storage tanks. Remedial activities included the removal of the leaking tanks, and associated contaminated soils and liquids. The soil was approved for out-of-state recycling and three monitoring wells were installed on the property. A DICAR investigation completed, and the State of New Jersey granted an approved closure after two rounds of sampling. The wells were installed out of the way of proposed development, which proceeded without delay.