site remediation Articles
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Toxicity of diesel contaminated soils to the subantarctic earthworm Microscolex macquariensis
Several fuel spills have occurred on subantarctic Macquarie Island (54°30′ S 158°57′ E) associated with storing fuel and generating power for the Island's research station. The Australian Antarctic Division began full‐scale, on‐site remediation of these sites in 2009. To develop appropriate target concentrations for remediation, acute and chronic tests were developed with the endemic earthworm, ...
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Remediation Technology Assessment Reports: A Technology Selection and Design Resource
Untitled Document What are Remediation Technology Assessment Reports? Remediation technology assessment reports provide an analysis of remedial technologies based on their use at numerous hazardous waste cleanup sites. These reports contain information about the application of a specific technology, such as bioremediation, or about a common contaminant, such as ...
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Water monitoring for remediation - Case Study
Customer: Rainbow Group and T95C Application: Portable water sampling Background: Established in 1985, Rainbow Group are environmental demolition and civil engineering contractors based in Padstow, NSW. Their services include construction, excavation, demolition, remediation and water treatment. Rainbow Group has a renowned reputation with the major oil companies and has decommissioned many ...
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Innovative, Non-Intrusive Passive Soil Gas Collection Device Maps Large Carbon Tetrachloride Plume at the DOE Hanford Site, Washington -- 10501
Abstract Approximately 100 hectares (250 acres) were investigated as part of the passive soil gas (PSG) investigation that included multiple areas of concern. The objective of the investigation program was to rapidly identify potential source areas and guide future sampling events based on the frequency and magnitude of compounds identified in the survey. PSG sampling was the preferred ...
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Low-Flow (Minimal Drawdown) Ground Water Sampling Procedures
The Regional Superfund Ground Water Forum is a group of ground-water scientists, representing EPA’s Regional Superfund Offices, organized to exchange information related to ground-water remediation at Superfund sites. One of the major concerns of the Forum is the sampling of ground water to support site assessment and remedial performance monitoring objectives. This paper is intended to provide ...
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Common Treatment Technologies for Halogenated VOCs in Soil, Sediment and Sludge
Soil vapor extraction (SVE), thermal desorption, and incineration are the presumptive remedies for Superfund sites with halogenated VOC-contaminated soil. Because a presumptive remedy is a technology that EPA believes, based upon its past experience, generally will be the most appropriate remedy for a specified type of site, the presumptive remedy approach will accelerate site-specific analysis ...
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Common Treatment Technologies for Nonhalogenated VOCs in Soil, Sediment and Sludge
Soil vapor extraction (SVE), thermal desorption, and incineration are the presumptive remedies for Superfund sites with nonhalogenated VOC-contaminated soil. Because a presumptive remedy is a technology that EPA believes, based upon its past experience, generally will be the most appropriate remedy for a specified type of site, the presumptive remedy approach will accelerate site-specific ...
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Real Estate Development: Southern California Campus at Former Aerospace Manufacturing Facility - Case Study
In 2015, Intrinsyx was retained by a Fortune 100 client with a campus being developed (late 2018 opening) at a highly contaminated former aerospace manufacturing facility. We worked with the client’s Environmental Health & Safety team, their architectural firm, their landscaping firm, as well as state and federal regulators. We developed a tailored planting scheme for their campus using ...
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On-Site TPH in Soil Measurements
On-site analysis of total petroleum hydrocarbon (TPH) concentration levels in soil are easily handled using the InfraCal TOG/TPH Analyzers manufactured by Wilks Enterprise, Inc. The InfraCal TOG/TPH Analyzers are portable infrared (IR) analyzers that quickly determine TPH levels in less than 10-15 minutes, including the extraction. Concentrations as low as 10 ppm to well over 10,000 - 20,000 ...
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Monitoring of Subsurface Contaminant Remediation at Moab UMTRA
The Moab Uranium Mill Tailings Remedial Action (UMTRA) site is a former uranium ore-processing facility managed by the U.S. Department of Energy (DOE) in collaboration with Lawrence Berkeley National Lab (LBNL). The highest remediation priority for the site is hauling and disposal of mill tailings. Additional efforts of the site are focused on remediation of a uranium plume on the edge of ...
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Case Study: Aerobic Cometabolism of Vinyl Chloride in Central Ohio
Site Summary: Chlorinated solvents were found in ground water at a former automobile repair shop. The solvents were thought to have been released from an underground storage tank (UST). After the UST and associated contaminated soil were removed, CL-Out® bioremediation was implemented to reduce the levels of contamination to site-specific cleanup goals. Geology and Hydrogeology The site is set in ...
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VC2 Vertebrae AS/SVE under highway - Case Study
SITE Active Fueling Station and Farm Store, Greeley Colorado CONTAMINATION Diesel and Gasoline range organics including LNAPL. The LNAPL plume is approximately 20,000 square feet. The dissolved-phase plume, above RBSLs, is approximately 40,000 square feet. OBJECTIVE The design involved 5 VertebraeTM well systems to provide targeted air sparging (AS) utilizing 29 independent well segments and ...
By EN Rx, Inc.
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A non-traditional approach for soil remediation
Through our compromise with environmental care and development of sustainable projects, we are exploring and improving state-of-the-art technologies for remediation of affected sites. Challenging scenarios including a vulnerable environment, different contaminants and social and operative restrictions, demand that our expert team design and assembly the best environmental and cost-effective ...
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Perchlorate Remediation Project Case Study
ARCADIS was contracted in 2000 to lead the development, evaluation and selection of a final groundwater remedy for this 94-acre site in California. As part of this work, ARCADIS is also participating in the evaluation of innovative technologies with the potential to treat soil impacts in the multiple source areas across the site. Specifically, the project is focused on the remediation of seven ...
By Arcadis
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Brownfield Site Phytoremediation for Oil Company - Case Study
The site was a petroleum tank farm from the early half of the 20th century. Contaminants on-site include petroleum hydrocarbons, benzene and ethylbenzene, and PAHs naphthalene and 2-methylnapthalene. Most contaminants are in subsurface and groundwater, with the exception of PAHs that extend from the surface to ...
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MEW Superfund Site: TCE Groundwater Plume - Case Study
Working with NASA-Ames Environmental Remediation Group and the EPA, this site was our first field deployment of Endophyte Assisted Phytoremediation, at one of the region’s largest Superfund sites with TCE groundwater contamination. Intrinsyx planted 300 hybrid poplar trees as 12-inch cuttings. Within a year, the benefits of using our PDN3 bacterial endophyte to inoculate trees were visible, ...
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Detailed hydraulic assessment using a high-resolution piezocone coupled to the GeoVIS
Department of Defense (DoD) ground water assessment and remediation projects require cost effective methods for determining the direction and rate of ground water and contaminant flow. Monitoring wells have typically been used to estimate these parameters. However, detailed three-dimensional ground water and contaminant flow pathways cannot typically be delineated using monitoring well data. ...
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How to Remediate under an Intersection with Horizontal Wells
Roadway intersections within urban settings are arguably some of the most challenging areas for subsurface remediation. Many consultants tasked with remediation of challenging sites such as these become frustrated by the inability of a vertical remediation system to influence the area of concern and/or they are anxious that they will not efficiently bring their clients’ sites to closure. ...
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Accelerating progress at contaminated sediment sites: Moving from guidance to practice
Contaminated sediments are a pervasive problem in the United States. Significant economic, ecological, and social issues are intertwined in addressing the nation's contaminated sediment problem. Managing contaminated sediments has become increasingly resource intensive, with some investigations costing tens of millions of dollars and the majority of remediation projects proceeding at a slow pace. ...
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Development of Plans and Specifications and Bidding Assistance
Asbestos Survey – Building Surveys and Testing ACC helps developing owners and supervisors meet their regulating specifications to test suppose components for asbestos fiber prior to remodelling or development activities. To ensure quality, our certified professionals perform all area work according to OSHA, EPA and AHERA methods. Following the asbestos fiber survey, ACC provides a ...
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