subsurface sampling Articles
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Impact of artificial monolayer application on stored water quality at the air–water interface
Evaporation mitigation has the potential to significantly improve water use efficiency, with repeat applications of artificial monolayer formulations the most cost-effective strategy for large water storages. Field investigations of the impact of artificial monolayers on water quality have been limited by wind and wave turbulence, and beaching. Two suspended covers differing in permeability ...
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Impact of artificial monolayer application on stored water quality at the air–water interface
Evaporation mitigation has the potential to significantly improve water use efficiency, with repeat applications of artificial monolayer formulations the most cost-effective strategy for large water storages. Field investigations of the impact of artificial monolayers on water quality have been limited by wind and wave turbulence, and beaching. Two suspended covers differing in permeability ...
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Technical Bulletin: Multilevel Sampling
The topic of this CL:AIRE Technical Bulletin is multilevel sampling systems for characterising contaminated groundwater. Contaminated groundwater can present considerable problems for landowners: it can occur at significant depth, sources of the contamination are not often obvious, it can migrate from one property to another, and groundwater flow directions can be altered due to seasonal ...
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Jackson storm cells pilot case study
Performance History and Discussion The City of Jackson (COJ) and Jackson Water Partnership (JWP) selected In-Pipe Technology (IPT) in March 2010 to team with them and implement a beta test project. The principal purpose being to evaluate the microbial technology and benefits of the IPT professional services program for the Savanna WWTP Storm Cells. In-Pipe Professional services include 100% ...
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Identification of source of heavy metal contamination in a site - a case study
Accidental spills and improper disposal of industrial effluent/sludge containing heavy metals onto the open land or into subsurface result in soil and water contamination. Detailed investigations are carried out to identify the source of contamination of heavy metals in an industrial suburb near Bangalore in India. Detailed investigation of ground water and subsurface soil analysis for various ...
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Fold geometry model of Coyote hills segment of Puente hills blind-thrust system applied to interpretation of long-term water level data
Recent work by others along the Coyote Hills segment of the Puente Hills blind-thrust system has imaged the near-surface structural features generated by activity of that intrabasin fault. Published shallow seismic profiles near the south flank of the Coyote Hills indicate the blindthrust system is expressed by south-facing folding of Quaternary terrestrial sediments underlying the hills. ...
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Natural Attenuation in Soils
Introduction Surface and subsurface soils have different characteristics in natural attenuation. Mobile contaminants in subsurface soils diffuse into soil vapor and aqueous phase and thus are relatively easily subject to natural subsurface processes that can attenuate these contaminants. Most high-molecular-weight (persistent) organic and many inorganic contaminants will be immobilized in the ...
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Measurements of Methane Emissions and Surface Methane Oxidation at Landfills: WR1125
Methane emissions from landfill were estimated to account for around 3% of the UK‟s total greenhouse gas emissions in 2009. The reported figure for methane emissions from landfill in the UK represents 41.5% of all UK methane emissions. The IPCC guidelines indicate that measurement of methane emissions is necessary to validate models and to provide confidence in country specific model ...
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NMR Logging Through Geoprobe Direct Push Tooling
Among the many advantages in our range of borehole tools is that we produce versions of the Javelin and Dart that can be deployed through direct push driven casings. Vista Clara systems are the world’s only NMR logging tools that can be deployed using Direct Push technology from industry leader, Geoprobe ...
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Cost-Effective Destruction of Petroleum Hydrocarbon Contaminants with Expedited Residual Mass Solubilization under Anaerobic Conditions via Biostimulation
Full-scale biostimulation program using the additive TPHenhanced to 1) enhance respiration of native heterotrophic bacteria; 2) expedite solubilization of residual source mass, under anaerobic conditions; and, 3) enhance dissolved-phase petroleum hydrocarbon (PHC) destruction. Site small automobile fueling and service facility from the 1950’s to 1982. Petroleum release was discovered in ...
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Vapor Intrusion Testing/Sampling in Buildings
What is Vapor Intrusion? Vapor intrusion occurs when volatile chemicals lodged in soil or groundwater rise to the surface and are released into the air. This can occur in the open air or into buildings, offices, factories, warehouses, vacant, or abandoned. Vapor intrusion testing/sampling is a method of determining if known or suspected ground contamination is a result in these chemical vapors ...
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Chlorinated VOC Groundwater & Soil Remediation - Case Study
Summary Burns & McDonnell was retained to perform soil and groundwater remediation of chlorinated volatile organic compounds (VOCs) such as perchloroethylene and trichloroethylene (PCE and TCE) at a warehouse facility in Dallas. A historical spill of the chlorinated VOCs behind the warehouse building resulted in the contamination of soil in the immediate area and shallow groundwater leading ...
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Jamaica Queens, New York - Full-Scale Remediation using ERH - Case Study
This project involved a guaranteed source area remediation of tetrachloroethene (PCE) at an operating school bus maintenance facility located in Queens, New York. Engineer: Mr. Greg Beyke Project Superintendent: Mr. Paul Bianco Lithology: Clean sand in both the vadose and saturated zones. Hydrology: Groundwater depth at 12 ft below grade surface (bgs). Treatment Area, Depth Interval and Volume: ...
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Source Area Remediation of PCE in Soil - Fair Lawn, New Jersey - Case Study
TRS Group, Inc. (TRS) was retained by Anderson Mulholland and Associates, Inc. (AMAI) to perform an Electrical Resistance Heating (ERH) remediation of DNAPL in soil at the former Topps Dry Cleaners property in Fair Lawn, NJ. The remedial goal of this project was a reduction of tetrachloroethene (PCE) in soil to less than 1 milligram per kilogram (mg/kg) in every soil sample. Final confirmatory ...
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Data Requirements for Soil, Sediment, and Sludge
Site soil conditions frequently limit the selection of a treatment process. Process-limiting characteristics such as pH or moisture content may sometimes be adjusted. In other cases, a treatment technology may be eliminated based upon the soil classification (e.g., particle-size distribution) or other soil characteristics. Soils are inherently variable in their physical and chemical ...
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Low-Flow (Minimal Drawdown) Ground-Water Sampling Procedures
Untitled Document Background 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 ...
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