This Webinar is based on CANADIAN experience and law with a focus on British Columbia. The science, however, is universal and the laws and regulations tend to be similar.
In BC, if groundwater at a site contains a substance that exceeds the applicable CSR standard, the Site is not a contaminated site if the substance concentration is less than background.
Background concentrations for a Site can be established using either:
- Protocol #9 – Determining Background Groundwater Quality, or
- Technical Bulletin #3 – Regional Background Concentrations for Select Inorganic Substances