Development of Vulnerability through the DRASTIC Method and Geographic Information System (GIS) (Case Groundwater of Berrchid), Morocco

The

vulnerability map is a fondamental document for the development of territory. It

basically allows you to guide the siting of development projects that may have a

negative impact on the quality of groundwater resources. The Geographic Information

Systems are powerful tools of choice for the development of vulnerability maps of

aquifers, they facilitate multicriteria analysis and updated models developed. Given

the strategic role of the underground water Berrechid in the economic and social

development of the region of Bouregreg-chaouia, development, we proceeded to develop

the vulnerability map of this area by exploiting the features offered by the GIS

Arc GIS 9.3 extensions Spatial Analysis Tools and Geostatistical Analyst allowed

us to calculate the indices of seven parameters of the DRASTIC method, these indices

were classified into five categories: Extreme, High, Medium, Low, Very Low. Developed

the card can be used as a tool for decision support in planning and helps to preserve

the groundwater in the area Berrechid and surrounding areas.