ID | 536 |
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Citation | Earth Tech Canada Inc. 2002. District of Summerland Watershed Risk Assessment. Prepared for District of Summerland. |
Organization | District of Summerland |
URL | http://www.summerland.ca/docs/docs_forms/Reports/Water%20Master%20Plan/408_Appendix_G_RISKREPORT.pdf |
Abstract/Description or Keywords | In order to confirm the direction of a long term water quality improvement strategy for the District of Summerland, a qualitative risk assessment was carried out to document the activities within the watershed that would be considered as a risk to human health. Both short term and long term health risks were considered. Short term health risks are considered to be those risks that could cause acute gastrointestinal illness from protozoa ( Giardia or Cryptosporidium ), bacteria ( e-coli ) or viruses. Long term health risks are considered to be those that could provide a cumulative impact such as the increase potential of cancer from long term exposure to trihalomethanes. Trihalomethanes can form during the disinfection process when there is organic matter present in the raw water. High colour is a good indicator of the presence of organic matter in the water. Approach As the exact quantity of contaminants would be very difficult to assess, a qualitative approach in assessing the risks was conducted. This approach involves the following steps: 1. Assessing previous waterborne disease outbreaks to provide a record of items and issues that have been known to create outbreaks of waterborne illness. 2. Identifying existing watershed contaminants from human and natural processes occurring in the watershed; 3. Reviewing treatment processes and barriers in place to reduce the risk to health. water quality, biological water quality |
Information Type | report |
Regional Watershed | Okanagan |
Sub-watershed if known | Trout Creek, Darke Creek, Summerland |
Aquifer # | |
Comments | |
Project status | complete |
Contact Name | |
Contact Email |