Citation | Erlandson, Glenna; 2014; Comparison of DRASTIC and DRASTIC - Fm methodologies for evaluation of intrinsic susceptibility of coastal bedrock aquifers and the adjustment of DRASTIC; FLNRO, West Coast Region, Nanaimo; 57p |
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Organization | MFLNRO |
URL | http://a100.gov.bc.ca/appsdata/acat/documents/r42387/DRASTIC_March2014_1396286363816_6285348741.pdf |
Abstract/Description or Keywords | The DRASTIC methodology utilizes seven parameters of groundwater physical characteristics that impact groundwater pollution potential. A modification to the original DRASTIC methodology titled DRASTIC-Fm (Denny et al., 2007) incorporates the structural characteristics of fractured bedrock aquifers as an additional influencing parameter. This modified method was applied to a local study of Gabriola Island, where structural bedrock is an important element to the hydrogeological characteristics of the island. Of particular interest, the study area for Part 1 of this project is the area of overlap between the two studies occurring on Gabriola Island. Part 2 of this report describes the techniques used to reweight the results of the DRASTIC - Fm study to incorporate the Fm rated values in to the C parameter rated values and the resulting updated intrinsic susceptibility values for the southern Gulf Islands. |
Information Type | Report |
Regional Watershed | Southern Gulf Islands |
Sub-watershed if known | |
Aquifer # | 706; 709 |
Comments | |
Project status | |
Contact Name | Pat Lapcevic |
Contact Email | [email protected] |