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| Type: | Resource | |
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| Created: | Feb 07, 2023 at 2:25 p.m. | |
| Last updated: | Feb 07, 2023 at 2:25 p.m. | |
| Citation: | See how to cite this resource |
| Sharing Status: | Public |
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| Views: | 816 |
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Abstract
The Annapolis-Cornwallis Valley Aquifer Study was a regional hydrogeological study focusing on major aquifer units of the most important agricultural area of Nova Scotia. The study area covered 2100 km2, and included sedimentary rocks of the Wolfville and Blomidon formations, as well as part of the North and South mountains bordering the valley. The surficial sediment cover is mainly composed of glacial tills, but sand and gravel units are also present in the eastern part of the valley. The main objectives of this project were to improve the general understanding of groundwater flow dynamics and to provide baseline information and tools for a regional groundwater resource assessment. The main bedrock aquifers of the Valley are located in the Wolfville and Blomidon formations, which are composed of lenticular bodies of sandstone, conglomerate, shale and siltstone in variable proportions. The aquifers are often confined and the flow is topographically-driven. Their hydraulic conductivities are in the range of 10-6-10-5 m/s. Good aquifers, though limited in extent, can also be found in the sand and gravel units, with hydraulic conductivities on the order of 10-4 m/s. Groundwater recharge was estimated to range between 115 and 224 mm/a over the entire study area. The vulnerability study showed that bedrock aquifers are typically less vulnerable than surficial aquifers, with the Wolfville Formation being the most vulnerable bedrock formation. Groundwater of the Valley is generally of good quality, although nitrate levels are of concern in several areas.
Subject Keywords
Coverage
Spatial
Content
Additional Metadata
| Name | Value |
|---|---|
| DOI | 10.4095/288107 |
| Depth | 1200 |
| Scale | < 10 000 km² |
| Layers | 6-10 layers |
| Purpose | groundwater resources;scientific investigation |
| GroMoPo_ID | 46 |
| IsVerified | True |
| Model Code | Feflow |
| Model Link | https://doi.org/10.4095/288107 |
| Model Time | SS |
| Model Year | 2012 |
| Model Authors | C. Rivard; D. Paradis, SJ Paradis, A. Bolduc, RH Morin, S Liao, S Pullan, M-J Gauthier, S Trépanier, A Blackmore, I Spooner, C Deblonde, R Boivin, RA Fernandes, S Castonguay, T Hamblin, Y Michaud, J Drage, C Paniconi, |
| Model Country | Canada |
| Data Available | not specified |
| Developer Email | ESSCopyright@NRCan.gc.ca |
| Dominant Geology | Model focuses on multiple geologic materials |
| Developer Country | Geological Survey of Canada |
| Publication Title | Canadian groundwater inventory: regional hydrogeological characterization of the Annapolis Valley aquifers |
| Original Developer | No |
| Additional Information | |
| Integration or Coupling | None of the above |
| Evaluation or Calibration | static water levels |
| Geologic Data Availability |
How to Cite
This resource is shared under the Creative Commons Attribution CC BY.
http://creativecommons.org/licenses/by/4.0/
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