VOC sampling Articles
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Hydrogeologic Investigation of VOC Contamination in Bedrock Using Mass Flux Analysis – A Case History
Courtesy of US EPA and NGWA proceedings of the 2004 U.S. EPA/NGWA Fractured Rock Conference: State of the Science and Measuring Success in Remediation, September 13-15, 2004, Portland, Maine AbstractA fractured bedrock system was investigated using a combination of hydrogeologic methods to minimize the number and depth of bedrock wells installed during the investigation. These methods were used ...
By Arcadis
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Performance Testing of Conventional and Innovative Downhole Samplers and Pumps for VOC`s in a Laboratory Monitoring Well
Untitled Document ABSTRACT Concentrations of groundwater contaminants in samples that differ from concentrations in the aquifer can lead to incorrect conclusions about the extent and severity of contamination and the effectiveness of remedial measures. Sample collection and storage techniques affect measured concentrations in samples, particularly of organic compounds that ...
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Performance Testing of Conventional and Innovative Downhole Samplers and Pumps for VOC`s in a Laboratory Monitoring Well
Untitled Document ABSTRACT Concentrations of groundwater contaminants in samples that differ from concentrations in the aquifer can lead to incorrect conclusions about the extent and severity of contamination and the effectiveness of remedial measures. Sample collection and storage techniques affect measured concentrations in samples, particularly of organic compounds that ...
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Groundwater Monitoring with the Waterra Inertial Pump
Untitled Document Abstract The Waterra Inertial Pump has been available for use in narrow diameter monitoring wells for several years. This device offers many advantages over other types of sampling equipment. Since this pump operates via a principle not used by any other type of device and is commonly constructed of materials not widely used in field sampling, some ...
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Microbubble Oxidation Smokes MTBE and BTEX. C-Sparge Ozone Microsparging for Rapid Removal of MTBE and Benzene
Untitled Document Figure 1. Master Control Unit A system called C-SpargingTM which uses ozone/air injected periodically in conjunction with a pulsing pump has been demonstrated to reduce MTBE from over 1000 ppb to less than 100 ppb in less than 40 days. The rate of decay was found to be a ten-fold reduction in monitoring wells located 3 ...
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Groundwater: Low-flow Purging and Sampling
Significant timesavings, improved sample process integrity, quality assurance and minimal quantities of potentially contaminated purge water to manage - are attractive as the focus on groundwater quality sharpens and economics demand best cost-benefit based methods Water has become a vitally important resource. Maintaining its quality and quantity and avoiding pollution are set to be watched ...
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Design Considerations for Multilevel Monitoring Wells
Untitled Document ABSTRACT Much has been written about the advantages of multilevel (multiport) monitoring wells over clustered or nested monitoring wells, however, there is little published information that provides helpful hints and 'dos and don'ts' for planning successful multilevel well projects. This paper discusses the differences in both design and construction ...
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Own Your Environmental Data Workflow: A Guide for Environmental Managers
Whether you are monitoring discharges from power plants, remediation performance at contaminated sites or the environmental performance of chemical plants, chances are that you are working with various subcontractors for field sampling, laboratory analysis, data validation, and report generation. Managing environmental liabilities and optimizing environmental performance requires environmental ...
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Train derailment prompts contaminated land investigation
On March 30th 2015 a long freight train, transporting a variety of goods including lumber and chemicals, wound its way through the state of Mississippi. At around 5pm, part of the train failed to negotiate a curved portion of the track in a rural area near Minter City, resulting in the derailment of nine railcars, one of which leaked chemicals onto agricultural farmland and woodlands. Emergency ...
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Train derailment prompts contaminated land investigation - Case study
On March 30th 2015 a long freight train, transporting a variety of goods including lumber and chemicals, wound its way through the state of Mississippi. At around 5pm, part of the train failed to negotiate a curved portion of the track in a rural area near Minter City, resulting in the derailment of nine railcars, one of which leaked chemicals onto agricultural farmland and woodlands. Emergency ...
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