Water Stewardship Information Sources

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
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]