Aquifer Vulnerability to Saltwater Intrusion – Pumping hazard
327 views (2 recent)Published by the Ministry of Environment and Climate Change Strategy - Water Protection and Sustainability
Licensed under Open Government Licence - British Columbia
Data and Resources
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SFU Final Report Risk of SWI Framework_2016pdf
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The layer may be used to evaluate aquifers or areas that are at higher risk of saltwater intrusion, in order to guide resource management decisions.
This dataset was modeled using the sources listed below: i) Klassen, J. (2015) Assessing the risk of saltwater intrusion on the Gulf Islands, BC. M.Sc. thesis, Department of Earth Sciences, Simon Fraser University, 148 pp.; ii) British Columbia Ministry of Environment (BC MoE) (2014) WELLS database. Water Stewardship Division, BC.; iii) Bednarski, J.M. and Rogers. (2012) LiDAR and digital aerial photography of Saanich Peninsula, selected Gulf Islands, and coastal regions from Mill Bay to Ladysmith, Southern Vancouver Island, British Columbia. Geological Survey of Canada. Open File 7229; iv) Carignan, K.S., Eakins, B.W., Love, M.R., Sutherland, M.G. and McLean, S.J. (2013) British Columbia, 3 arc-second MSL DEM. Prepared for National Oceanic and Atmospheric Administration (NOAA), Pacific Marine Environmental Laboratory (PMEL) by the NOAA National Geophysical Data Center (NGDC); v) Kennedy, G.W. (2012) Development of a GIS-based approach for the assessment of relative seawater intrusion vulnerability in Nova Scotia, Canada. Nova Scotia Department of Natural Resources; vi) Natural Resources Canada (2013) Canadian digital surface model. Accessed: September 2015. Retrieved: http://geogratis.gc.ca/site/eng/extraction.
|Name||Mike Wei (businessExpert)|
|Organization||Ministry of Environment and Climate Change Strategy|
|Sub-Organization||Water Protection and Sustainability|
|Name||Sylvia Barroso (pointOfContact)|
|Organization||Ministry of Forests, Lands, Natural Resource Operations and Rural Development|
|Sub-Organization||Regional Operations - West Coast|
Access & Security
|Who can view this dataset?||Public|
|Who can download this dataset?||Public|
|Record Last Modified||2019-05-10|
Object Name: WHSE_WATER_MANAGEMENT.GW_AQFR_VULN_SWI_PUMP_SP
Short Name: AQ_SWI_P
Comments: The dataset was developed as part of the Risk Assessment Framework for Coastal Bedrock Aquifers project completed by Simon Fraser University, for the Ministry of Environment and the Ministry of Forests, Lands and Natural Resource Operations. The layer shows the vulnerability of coastal aquifers on the southern Gulf Islands to salt water intrusion, based on their intrinsic susceptibility (aquifer properties such as distance from the coast and groundwater flux) and groundwater pumping (well density and type of use). The layer may be used to evaluate aquifers or areas that are at higher risk of saltwater intrusion, in order to guide resource management decisions.
|Column Name||Short Name||Data Type||Data Precision||Comments|
|AQFR_VULN_SWI_PUMP_ID||AQSWIP_ID||NUMBER||10||AQFR_VULN_SWI_PUMP_ID is a system generated unique identification number.|
|RISK_RATING||RISK_RTNG||NUMBER||2||RISK_RATING is a numeric rating of the saltwater intrusion risk from pumping hazards, on a scale of 1 to 10. (Derived from an aggregate model of hyrdological features.)|
|RISK_CLASS||RISK_CLASS||VARCHAR2||30||RISK_CLASS is a qualitative classification of the RISK_RATING and includes five clasess: Low (1-2), Moderately Low (3-4), Moderate (5-6), Moderately High (7-8), and High (9-10).|
|ASSESSMENT_YEAR||ASSESS_YR||NUMBER||4||ASSESSMENT_YEAR is the year that the saltwater intrusion vulnerability model was run. This indicates the currency of data that was used in the model.|
|LOCATION_NAME||LOC_NAME||VARCHAR2||200||LOCATION_NAME is the name of the Island or Coastline for which the given polygon is describing saltwater intrusion risk, e.g., Salt Spring Island.|
|FEATURE_AREA_SQM||FEAT_AREA||NUMBER||19||FEATURE_AREA_SQM is the system calculated area of a two-dimensional polygon in square meters.|
|FEATURE_LENGTH_M||FEAT_LEN||NUMBER||19||FEATURE_LENGTH_M is the system calculated length or perimeter of a geometry in meters.|
|SHAPE||SHAPE||SDO_GEOMETRY||1||SHAPE is the column used to reference the spatial coordinates defining the feature.|
|OBJECTID||OBJECTID||NUMBER||38||OBJECTID is a column required by spatial layers that interact with ESRI ArcSDE. It is populated with unique values automatically by SDE.|
|SE_ANNO_CAD_DATA||ANNO_CAD||BLOB||4000||SE_ANNO_CAD_DATA is a binary column used by spatial tools to store annotation, curve features and CAD data when using the SDO_GEOMETRY storage data type.|