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TitreInvestigation of the Potsdam Group sandstone aquifer vulnerability with the DFN-M approach
TéléchargerTéléchargement (publication entière)
AuteurPehme, P; Parker, B; Sterling, S; Crow, H; Chapman, S; Kearney, M
SourceRegional-scale groundwater geoscience in southern Ontario: an Ontario Geological Survey, Geological Survey of Canada, and Conservation Ontario geoscientists open house; par Russell, H A J; Ford, D; Priebe, E H; Holysh, S; Commission géologique du Canada, Dossier public 8363, 2018 p. 31, https://doi.org/10.4095/306559
Année2018
ÉditeurRessources naturelles Canada
RéunionRegional-Scale Groundwater Geoscience in Southern Ontario: Open House; Guelph; CA; février 28 - mars 1, 2018
Documentdossier public
Lang.anglais
DOIhttps://doi.org/10.4095/306559
Mediaen ligne; numérique
Référence reliéeCette publication est contenue dans Russell, H A J; Ford, D; Priebe, E H; Holysh, S; (2018). Regional-scale groundwater geoscience in southern Ontario: an Ontario Geological Survey, Geological Survey of Canada, and Conservation Ontario geoscientists open house, Commission géologique du Canada, Dossier public 8363
Formatspdf
ProvinceOntario
SNRC31G/05
Lat/Long OENS -76.0000 -75.5000 45.5000 45.2500
Sujetseau souterraine; aquifères; géochimie des eaux souterraines; ressources en eau souterraine; pollution de l'eau souterraine; qualité de l'eau; géologie du substratum rocheux; lithologie; roches sédimentaires; grès; caractéristiques structurales; fractures; géologie urbaine; trous de mine; échantillons carrotés; puits d'eau; diagraphie géophysique; roches mères; Groupe de Potsdam ; Grès de Nepean ; Utilisation de l'eau; Agriculture; Approvisionnement en eau; hydrogéologie; géochimie; géophysique; Phanérozoïque; Cénozoïque; Quaternaire; Paléozoïque; Ordovicien; Cambrien
Consultation
Endroit
 
Bibliothèque de Ressources naturelles Canada - Ottawa (Sciences de la Terre)
 
ProgrammeAquifer Assessment & support to mapping, Géoscience des eaux souterraines
Diffusé2018 02 16
Résumé(disponible en anglais seulement)
As cities grow, surrounding rural communities often experience development stresses such as increased demand on local aquifers. Rural aquifers can have different threats than city centres, such as nitrates from agriculture or pathogens related to septic systems that may not have historically been a dominant concern, but become so under the increased water demands. Case in point is the growing community of Greely, near Ottawa, Ontario which is surrounded by agricultural lands, homes have individual septic systems, and a shallow bedrock aquifer provides the sole water supply from a communal well. The City of Ottawa has engaged the project team to examine the deeper Nepean sandstone as an alternative water supply. An initial borehole was continuously cored through the Paleozoic bedrock sequence into the Precambrian close to the existing pumping well. The detailed Discrete Fracture Network - Matrix (DFN-M) approach was applied including rock core logging, chemical analysis, geophysical logging, hydrogeologic and hydro-geophysical testing, with cross-hole testing pending. We present the study approach, preliminary results and future plans. In addition to dealing with Greely's challenges, the multiple high-resolution data sets provide insight into this complex geologic/hydrogeologic setting and an initial assessment of the sandstone's viability as a water supply elsewhere.
GEOSCAN ID306559