Assessment of Trichloroethene Source Zone and Plume Evolution in a Fractured Dolostone Aquifer Due to Natural Attenuation Processes

dc.contributor.advisorParker, Beth L.
dc.contributor.authorOlesiuk, Joanna B.
dc.date.accessioned2018-08-31T15:07:32Z
dc.date.available2018-08-31T15:07:32Z
dc.date.copyright2018-08
dc.date.created2018-05-03
dc.date.issued2018-08-31
dc.degree.departmentSchool of Engineeringen_US
dc.degree.grantorUniversity of Guelphen_US
dc.degree.nameMaster of Applied Scienceen_US
dc.degree.programmeEngineeringen_US
dc.description.abstractA detailed study of an aged trichloroethene source zone and plume in fractured dolostone in Guelph, Ontario was undertaken to assess bulk scale behaviour due to natural attenuation. Long term groundwater quality data from an established monitoring network indicate spatially heterogeneous conditions. Decreasing TCE concentration trends occur at over 80% of locations. Degradation products cis-DCE, VC, ethene and ethane are present. Within shallow bedrock, where bulk of the mass resides, 46%, 74% and 86% reduction in TCE plume area, average concentration and mass, occurred between 2003 and 2013. Results of Compound Specific Isotope Analysis show TCE 13C enrichment and increasing concentrations of dissolved gases, providing evidence that complete biodegradation, specifically where favourable redox conditions exist, is occurring and increasing. Although the centre of mass is near stationary, plume front position is retreating toward the source area and groundwater concentrations are strongly attenuating due to continued matrix diffusion, sorption and degradation.en_US
dc.identifier.urihttp://hdl.handle.net/10214/14144
dc.language.isoenen_US
dc.publisherUniversity of Guelphen_US
dc.rightsAttribution-NoDerivs 2.5 Canada*
dc.rights.urihttp://creativecommons.org/licenses/by-nd/2.5/ca/*
dc.subjectTrichloroetheneen_US
dc.subjectFractured rocken_US
dc.subjectNatural attenuationen_US
dc.subjectPlume evolutionen_US
dc.subjectDolostoneen_US
dc.subjectBedrock aquiferen_US
dc.subjectCSIAen_US
dc.subjectBiodegradationen_US
dc.titleAssessment of Trichloroethene Source Zone and Plume Evolution in a Fractured Dolostone Aquifer Due to Natural Attenuation Processesen_US
dc.typeThesisen_US

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