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in creator/contributor: "Phelan, J.M."  
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Passive soil venting at the Chemical Waste Landfill Site at Sandia National Laboratories, Albuquerque, New Mexico

Description: Passive Soil Vapor Extraction was tested at the Chemical Waste Landfill (CWL) site at Sandia National Laboratories, New Mexico (SNLIW). Data collected included ambient pressures, differential pressures between soil gas and ambient air, gas flow rates into and out of the soil and concentrations of volatile organic compounds (VOCS) in vented soil gas. From the differential pressure and flow rate data, estimates of permeability were arrived at and compared with estimates from other studies. Flow, … more
Date: May 1, 1995
Creator: Phelan, J. M.; Reavis, B. & Cheng, W. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Simulation of the environmental fate and transport of chemical signatures from buried landmines

Description: The fate and transport of chemical signature molecules that emanate from buried landmines is strongly influenced by physical chemical properties and by environmental conditions of the specific chemical compounds. Published data have been evaluated as the input parameters that are used in the simulation of the fate and transport processes. A one-dimensional model developed for screening agricultural pesticides was modified and used to simulate the appearance of a surface flux above a buried land… more
Date: March 1998
Creator: Phelan, J. M. & Webb, S. W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Air sparging/high vacuum extraction to remove chlorinated solvents in groundwater and soil

Description: An air sparging and high vacuum extraction was installed as an alternative to a containment pump and treat system to reduce the long-term remediation schedule. The site is located at the DOE Mound facility in Miamisburg, Ohio, just south of Dayton. The air sparging system consists of 23 wells interspersed between 17 soil vapor extraction wells. The SVE system has extracted about 1,500 lbs of VOCs in five months. The air sparging system operated for about 6 weeks before shutdown due to suspected… more
Date: November 1, 1998
Creator: Phelan, J. M. & Gilliat, M. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

In Situ Gaseous Reduction Pilot Demonstration - Final Report

Description: The demonstration of the IGRS approach conducted at SWMU 143 on the White Sands Missile Range has provided information needed to complete a technical performance assessment and cost analysis of the technology. At least 70% of the Cr(VI) present in contaminated sediment at the site was reduced, thus verifying the effectiveness of the approach. Most of the treatment occurred in a zone located from {approximately}4 to 10 ft below ground surface, which appears to be a higher permeability interval. … more
Date: February 23, 1999
Creator: Thornton, E. C.; Phelan, J. M.; Giblin, J. T.; Olsen, K. B.; Miller, R. D. & Gilmore, T. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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