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DIG 2018-0011

Groundwater Yield Continuum for Southern Alberta (GIS data, polygon features)

Groundwater Yield Continuum for Southern Alberta (GIS data, polygon features) The yield continuum classifies groundwater yield along a spectrum that helps define total groundwater availability. The classes within the groundwater yield continuum ... Show Abstract

Klassen, J.  Liggett, J.E.  2018-10-23

OFR 2018-09

First-Order Groundwater Availability Assessment for Southern Alberta

Abstract: The Alberta Geological Survey (AGS) has used an aquifer yield continuum approach to quantify groundwater yield to a depth of 150 m below ground surface in southern Alberta. The aquifer yield continuum approach classifies yield along a spectrum, bound by nonuse and maximum mining, rather than determining a single aquifer yield value. The concept depends on quantifying hydrogeological parameters such as recharge, discharge, and aquifer volume. Environmental flow needs and input from local stakeholders and the community can be accounted for in order to manage the degree of impact of groundwater withdrawal on the hydrological system. Methods used to quantify each of these hydrogeological parameters depend on data availability, hydrogeological regime, climate, and landscape characteristics of the study area. As depression-focussed recharge is the dominant recharge mechanism on the Canadian Prairies, a method incorporating terrain analysis, identification of upland and depression characteristics, and simulation of surface runoff into depressions was used to estimate recharge throughout southern Alberta. Discharge was inferred based on recharge, and aquifer volumes to a depth of 150 m below ground surface were estimated from the AGS's 3D Provincial Geological Framework Model of Alberta. Aquifer yields are calculated on a watershed basis and results show that recharge ranges from 4 to 36 mm/yr with recharge decreasing from the northwest towards the southeast, following regional climatic gradients. Maximum sustained yield, after which groundwater mining will start to occur, ranges from 0.2E7 to 13E7 m3/yr; however, there is less of a spatial trend in the yield values compared to recharge as volumetric yield is influenced by the size of a given watershed. Groundwater abstraction equal to the maximum sustained yield would have a significant impact on the hydrogeological system, including major impacts to surface water bodies. Permissive sustained yield, calculated as 10% of the maximum sustained yield in this study therefore provides an order of magnitude presumptive standard for yield in the absence of detailed studies in a given area.  Groundwater is an important resource for many stakeholders in Alberta. Quantifying the availability of groundwater is necessary for understanding current water use versus availability and evaluating risks associated with potential development scenarios. The aquifer yield results of this study can be used to assess potential, order of magnitude, regional groundwater yields and to compare relative differences between watersheds. Additionally, results can be used as a screening or risk assessment tool to identify watersheds of interest, where further groundwater assessments could be conducted considering local knowledge and specific scenarios. The aquifer yield continuum methodology can be adapted and utilized to focus the assessment of aquifer yield to the specific area of interest, incorporating local knowledge of the groundwater system and desires of the community and stakeholders. Place Keywords 72e 72l 72m 73d 73e 73l 82g 82h 82i 82j 82o 82p 83a 83b 83g 83h 83i 83j alberta canada southern alberta Theme Keywords aquifers geology groundwater hydrogeology recharge resource management water resources yield zones

Klassen, J.  Liggett, J.E.  Pavlovskii, I.  Abdrakhimova, P.  2018-10-23

MAP 032

Uppermost Cretaceous and Tertiary Strata of Central and Southern Alberta

The mapped formations are, from youngest to oldest: St. Mary River, Edmonton, Eastend, Willow Creek, Paskapoo, Ravenscrag, Porcupine Hills, Cypress Hills and Handhills. Place Keywords alberta canada 72e 72l 72m 73d 73e 72l 73m 82g 82h 82i 82j 82n ... Show Abstract

Carrigy, M.A.  1971-01-01

DIG 2016-0009

Mercury Porosimetry Data of Alberta Geological Units for Shale- and Siltstone-Hosted Hydrocarbon Evaluation (tabular data, tab-delimited format)

Mercury Porosimetry Data of Alberta Geological Units for Shale- and Siltstone-Hosted Hydrocarbon Evaluation (tabular data, tab-delimited format) The strata evaluated include the following units: basal Banff Formation, Colorado Group, Montney ... Show Abstract

Rokosh, C.D.  Crocq, C.S.  Pawlowicz, J.G.  Brazzoni, T.  2016-06-10

DIG 2016-0001

Inorganic Geochemistry of Alberta Geological Units for Shale- and Siltstone-Hosted Hydrocarbon Evaluation (tabular data, tab-delimited format)

Inorganic Geochemistry of Alberta Geological Units for Shale- and Siltstone-Hosted Hydrocarbon Evaluation (tabular data, tab-delimited format) The strata evaluated include the following units: basal Banff Formation Colorado Group Duvernay Formation ... Show Abstract

Rokosh, C.D.  Crocq, C.S.  Pawlowicz, J.G.  Brazzoni, T.  2016-07-13

DIG 2016-0038

Pick Elevations for the Bedrock Topography of the Alberta Plains (tabular data, tab delimited format)

Pick Elevations for the Bedrock Topography of the Alberta Plains (tabular data, tab delimited format) The bedrock topography of Alberta is the surface of the top of Upper Cretaceous and Paleogene bedrock, and reveals geomorphic features created by ... Show Abstract

Lyster, S.  MacCormack, K.E.  Atkinson, N.  2016-06-10

DIG 2019-0003

Southeastern Alberta 3D Geological Model: 3D Print Files (digital data, STL format)

Southeastern Alberta 3D Geological Model: 3D Print Files (digital data, STL format) The zip file also includes a PDF document explaining the model and containing metadata about the printed version. In 2017, a high-resolution 43-layer 3D geological ... Show Abstract

Babakhani, M.  Mckay, K.  Warren, J.E.  2019-03-18

DIG 2018-0005

Distribution of Hydraulic Head in the Wapiti / Belly River Hydrostratigraphic Unit (tabular data, tab-delimited format)

Distribution of Hydraulic Head in the Wapiti / Belly River Hydrostratigraphic Unit (tabular data, tab-delimited format) The source datasets are head data from Alberta Environment and Parks' Alberta Water Well Information Database (AWWID) and ... Show Abstract

Singh, A.  2019-03-19

DIG 2018-0002

Distribution of Hydraulic Head in the Wapiti / Belly River Hydrostratigraphic Unit (gridded data, ASCII format)

Distribution of Hydraulic Head in the Wapiti / Belly River Hydrostratigraphic Unit (gridded data, ASCII format) The head surface was mapped at a regional scale using many years of data, thus providing a general indication of regional groundwater ... Show Abstract

Singh, A.  2019-03-19

DIG 2017-0026

Distribution of Total Dissolved Solids in the Wapiti / Belly River Hydrostratigraphic Unit (tabular data, tab-delimited format)

Distribution of Total Dissolved Solids in the Wapiti / Belly River Hydrostratigraphic Unit (tabular data, tab-delimited format) The source datasets are water well chemistry data from Alberta Environment and Parks' Alberta Water Well Information ... Show Abstract

Nakevska, N.  2019-03-19