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TitleA framework for conceptualizing groundwater-surface water interactions and identifying potential impacts on water quality, water quantity, and ecosystems
AuthorConant, B, Jr; Robinson, C E; Hinton, M J; Russell, H A J
SourceJournal of Hydrology vol. 574, 2019 p. 609-627, https://doi.org/10.1016/j.jhydrol.2019.04.050
Year2019
Alt SeriesNatural Resources Canada, Contribution Series 20180427
PublisherElsevier BV
Documentserial
Lang.English
Mediapaper; on-line; digital
File formatpdf (Adobe® Reader®); html
ProvinceOntario
NTS30M/13; 30M/14; 31D/03; 31D/04; 31D/05; 31D/06; 31D/11; 31D/12; 31D/13; 31D/14; 31E/03; 31E/04; 40P/16; 41A/01; 41A/08; 41A/09; 41A/16; 41H/01
AreaPine River; Duffins Creek; Nottawasaga Bay; Georgian Bay; Lake Huron
Lat/Long WENS -80.5000 -79.0000 45.2500 43.7500
Subjectshydrogeology; environmental geology; geochemistry; surficial geology/geomorphology; regional geology; groundwater; surface waters; lakes; rivers; streams; water quality; ecosystems; modelling; biogeochemistry; environmental analysis; flow regimes; watersheds; climate; hydrologic environment; hydrologic properties; sediments; bedrock geology; organic materials; biological communities; groundwater geochemistry; lake water geochemistry; stream water geochemistry; aquifers; resource management; Duffins Creek Watershed; Oak Ridges Moraine; Glacial Lake Iroquois; methodology; groundwater-surface water interactions; water resources; water supply; biology; case studies; anthropogenic impacts; aquitards; contamination
Illustrationsflow diagrams; location maps; cross-sections; schematic representations; hydrographs
ProgramAquifer Assessment & support to mapping, Groundwater Geoscience
Released2019 04 08
AbstractDeveloping an understanding of how groundwater (GW) and surface water (SW) systems function and interact to impact water quantity, water quality, and ecosystem health provides a basis for management of water resources, environmental protection, and land management. Although knowledge of these complex and dynamic systems has improved in recent decades, there is currently no systematic guidance for conceptualizing and evaluating GW-SW interactions and identifying their potential impact on management issues. For this reason, a holistic framework was created to provide a comprehensive and logical approach for identifying, understanding, and evaluating the key factors and processes controlling GW-SW interactions and understanding their relationship to environmental problems. The framework identifies fundamental hydrological, biogeochemical, and biological processes and critical factors to consider when developing robust conceptual models of GW-SW systems. The framework is comprehensive and can be adapted to different problems using only the aspects necessary to address a specific issue. The framework focuses on streams, rivers, and lakes but can be adapted for use in other GW-SW settings such as ponds, wetlands, and coastal marine environments. Applicability of the framework is illustrated through evaluation of three GW-SW interaction settings in southern Ontario, Canada: a groundwater contaminant plume discharging to the Pine River, discharge of groundwater nutrients to Lake Huron, and a regional-scale conceptualization of GW-SW flow interactions in the Duffins Creek watershed. The case studies highlight flexibility of the framework to develop conceptual models, assess environmental issues, identify knowledge gaps, and provide a basis for designing site investigations.
Summary(Plain Language Summary, not published)
Understanding of how groundwater (GW) and surface water (SW) act together to influence water quantity, water quality, and ecosystem health provides a basis for management of water resources, environmental protection, and land management. A framework was created to provide a means to identify, understand, and evaluate the key factors and processes controlling GW-SW interactions and their relationship to environmental problems. The framework identifies key hydrological, biogeochemical, and biological processes and factors to consider when developing an understanding of GW-SW systems. Three examples in Ontario include groundwater contamination discharging to the Pine River, discharge of groundwater nutrients to Lake Huron, and a regional-scale understanding of flow interactions in the Duffins Creek watershed. The case studies highlight flexibility of the framework to develop conceptual models, assess environmental issues, identify knowledge gaps, and aid the design of site investigations.
GEOSCAN ID314487