High-Resolution Dynamic Pore Pressure Monitoring to Determine Hydraulic Parameters in a Multi-Layered Bedrock System for Improved Aquifer Vulnerability Assessment and Monitoring

dc.contributor.advisorParker, Beth
dc.contributor.authorJohnson, Kathleen
dc.date.accessioned2020-10-09T14:26:48Z
dc.date.available2020-10-09T14:26:48Z
dc.date.copyright2020-10
dc.date.created2020-09-25
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.abstractApproximately 30% of Canadians rely on groundwater for their basic water needs. The City of Guelph is one of the largest cities in Canada to rely solely on a fractured rock dolostone aquifer for its drinking and fresh water supply. For this study, a vertical string of 21 pressure transducers was deployed behind a FLUTe liner in a borehole, within 250m of a municipal supply well in Guelph, Ontario, to record depth-discrete pore pressure transients over 60 days at 10s frequency. Regression deconvolution was used to determine the loading and pumping response functions using input variables including barometric pressure, Earth tides, river stage and pumping rates from 2 nearby municipal wells using distributed lags. Loading response functions determined over two time periods showed changing loading efficiency (LE) conditions relating to changing pumping or vadose zone conditions. Twelve hydrogeologic units were delineated, including four discontinuous aquitard units. An updated conceptual site model with lithostratigraphy was calibrated with the hydraulic data analysis providing hydraulic parameter estimates for LE, transmissivity and storativity in support of future 3D flow system numerical modelling.en_US
dc.description.sponsorshipArrell Food Institute, Ontario Graduate Scholarship
dc.identifier.urihttps://hdl.handle.net/10214/21327
dc.language.isoenen_US
dc.publisherUniversity of Guelphen_US
dc.rights.licenseAll items in the Atrium are protected by copyright with all rights reserved unless otherwise indicated.
dc.subjectgroundwateren_US
dc.subjectfractured rocken_US
dc.subjectGuelphen_US
dc.subjecthigh-resolutionen_US
dc.subjectpore pressureen_US
dc.titleHigh-Resolution Dynamic Pore Pressure Monitoring to Determine Hydraulic Parameters in a Multi-Layered Bedrock System for Improved Aquifer Vulnerability Assessment and Monitoringen_US
dc.typeThesisen_US

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