| Titre | Investigation of the Potsdam Group sandstone aquifer vulnerability with the DFN-M approach |
| Télécharger | Téléchargement (publication entière) |
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| Licence | Veuillez noter que la Licence du gouvernement
ouvert - Canada remplace toutes les licences antérieures. |
| Auteur | Pehme, P; Parker, B; Sterling, S; Crow, H ; Chapman, S; Kearney, M |
| Source | Regional-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  Accès ouvert |
| Année | 2018 |
| Éditeur | Ressources naturelles Canada |
| Réunion | Regional-Scale Groundwater Geoscience in Southern Ontario: Open House; Guelph; CA; février 28 - mars 1, 2018 |
| Document | dossier public |
| Lang. | anglais |
| DOI | https://doi.org/10.4095/306559 |
| Media | en ligne; numérique |
| Référence reliée | Cette publication est contenue dans Regional-scale groundwater geoscience in southern Ontario: an Ontario Geological Survey, Geological Survey of Canada, and Conservation Ontario geoscientists open house |
| Formats | pdf |
| Province | Ontario |
| SNRC | 31G/05 |
| Région | Greely; Ottawa |
| Lat/Long OENS | -76.0000 -75.5000 45.5000 45.2500 |
| Sujets | eau 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 |
| Programme | Géoscience des eaux souterraines , Aquifer Assessment & support to mapping |
| Diffusé | 2018 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. |
| Sommaire | (Résumé en langage clair et simple, non publié)
Compte rendu d'un atelier à Guelph, en Ontario, dans le cadre du programme Échange de ST. Des résumés ont été fournis par la Commission
géologique de l'Ontario, le ministère de l'Environnement et du Changement climatique, les Conservatin Authorities, les universités, le secteur privé, et Unites States Geological Survey. |
| GEOSCAN ID | 306559 |
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