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GroMoPo Metadata for Annapolis Valley model

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Created: Feb 07, 2023 at 2:25 p.m.
Last updated: Feb 07, 2023 at 2:25 p.m.
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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



Coordinate System/Geographic Projection:
WGS 84 EPSG:4326
Coordinate Units:
Decimal degrees
Place/Area Name:
North Latitude
East Longitude
South Latitude
West Longitude


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
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
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

GroMoPo, X. Huggins (2023). GroMoPo Metadata for Annapolis Valley model, HydroShare,

This resource is shared under the Creative Commons Attribution CC BY.


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