REPRESENTATIVE PROJECT EXPERIENCE
SOIL REMOVAL AND DISPOSAL - Hartford, CT
AES excavated approximately 450 tons of hazardous and non-hazardous soil from a very tight location, between a railroad easement and an operating news paper facility. All work was performed under the requirements and approval of Amtrak, the property owner and the environmental consultant. The soil was carefully segregated for appropriate disposal to the correct waste disposal facilities. AES provided all of the waste transportation and disposal as well as site restoration services.
GROUNDWATER AND VAPOR RECOVERY SYSTEM - Nashua, NH
This 2-Phase system was installed for the treatment of toluene contamination. The remediation system was installed during normal business hours at a very active paper treatment company. All work was coordinated as not to interfere with operations at the site. The project involved tying into six existing wells, constructing well heads, installing well vaults, running the well lines back to the remediation system with HDPE piping (compatible with toluene), installing liquid phase carbon and connecting the discharge to the sanitary sewer. The system has successfully recovered over 8,000 lbs. Of toluene and has been decommissioned.
SOIL REMOVAL AND DISPOSAL - Waterbury, CT
This project involved removing 6,300 tons of metal and volatile organic contaminated soil. The contaminated soil was located at a site in Waterbury with shallow ledge and bouncy overburden. All of the material removed from the excavation was screened by AES to a diameter of six inch minus (to meet landfill disposal approval). AES worked very close with the consultant to segregate the contaminated media. Based upon the location of the excavated material and the concentration of the constituents, AES coordinated and transported the contaminated material to either a landfill in MA or CT for disposal. This provided a savings in disposal costs for the client. The excavations were graded and the site is currently available for redevelopment.
SOIL REMOVAL AND DISPOSAL - Nashua, NH
The project consisted of excavating contaminated soil from the building (located adjacent to the embankment of the Merrimack River) to the bank of the river. AES excavated and staged the contaminated and hazardous soil, prepared the soil to meet Department of Transportation regulations and provided transportation and disposal of both the non-hazardous and hazardous waste. The site was restored by AES by installing a stabilization geo-membrane and planting the appropriate shrubs and trees. All work was performed under the local and state officials as well as the environmental engineer.
GROUNDWATER RECOVERY SYSTEM - Bristol, CT
This project included installation of a remediation system to recovery chromium impacted groundwater located in the bedrock below the concrete slab of the building. AES personnel assisted with the installation of a blasted trench in the bedrock below the building without impacting the foundation of structural integrity of the building. The trench extended approximately 250 linear feet within the building. AES personnel installed groundwater recovery pumps in the wells located within the trench, all the associated piping and secondary containment, water sensors, anion vessels, remote telemetry system, HACH hexavalent chromium analyzer and all of the associated gauges and totalizers.
UST CLOSURE - Financial Institution, Wilton, NH
This project was of special concern to the client because it was required to be performed during normal business hours. There were two underground storage tanks at the site that required closure. One tank was located below the concrete slab in the basement of the bank. The second tank was located under the concrete sidewalk directly in front of the main entrance of the bank. The basement of the bank had no windows or outside access for oil removal or equipment mobilization. The only access to this tank was through the main lobby. The operations of the project were performed with minimal impact to the bank personnel and their clients. The project was completed promptly and with complete client satisfaction.
STREAM BED RESTORATION - Plainville, CT
This project involved removing 100 tons of oil contaminated soil from the bed of the Paquabuck River. Special care was taken to prevent the migration of oil downstream during the project. The oil contaminated soil was excavated, dewatered to the extent possible, mixed with clean, material (to stabilize the soil) and staged appropriately to prevent water run off. Upon completion of the oil contaminated soil removal, AES restored the site by regarding the area disturbed by the remedial activities, installing approximately 2000 SF of stabilization membrane in the river, installing 10,000 SF of erosion control fabric on the embankment, installing approved wetland seed mix and planting approximately 50 wetland trees and shrubs. This project was closely regulated by both the State "CT DEP" and local wetland officials.
UST REMOVAL - Pharmaceutical Company, Norwalk, CT
AES was retained to remove a 2,000 gallon underground storage tank located adjacent to the foundation of a building. AES was contracted to do this tank removal due to the exceptional quality of work performed for the client in the recent past. The tank was located below two concrete slabs (totaling 18 inches of concrete) and adjacent to an existing building foundation. AES carefully saw cut the concrete to expose the tank, excavated the overlying and surrounding soil for tank removal. The tank was excavated, removed and transported to a local tank disposal facility for cleaning and disposal as scrap metal. Post excavation samples were collected, analyzed and the tank grave was backfilled and compacted. The concrete slab was restored to match the existing conditions. This project was performed ahead of schedule and under budget for the client.
GROUNDWATER AND VAPOR RECOVERY SYSTEM - Rochester, NY
This project involved constructing well heads and installing well vaults for fifteen wells located both inside and outside of the building. AES piped the wells to a remediation system involving both liquid and vapor phase carbon and installed a liner over the well field extending approximately 40,000 SF. AES connected the remediation system to the sanitary sewer for final discharge of the treated groundwater.
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