CS e-Link Recent Messages

site@gov.bc.caThe purpose of the CS e-Link system is to identify legal, technical, policy and guidance information related to the management and administration of contaminated sites in British Columbia which may be of interest to subscribers.

Listed below are the most recent CS e-link messages sent out to subscribers.


Stage 11 Webinars Posted

February 8, 2018

The PowerPoint presentations and audio recordings for the webinars hosted in November and December 2017 are now available on the ministry’s Contaminated Sites Presentations website. These webinars were to help stakeholders understand the changes to the recently approved Stage 11 amendments to the Contaminated Sites Regulation.

The webinars covered the following topics:

  • Webinar 1 - Stage 10 (Omnibus) and Stage 11 (Housekeeping) Amendments
  • Webinar 2 - Provincial and Regional Background Concentrations in Soil and Summary of Risk Assessment Updates
  • Webinar 3 - Updates to Provincial Vapour Standards and Policy
  • Webinar 4 - OMRR amendments and Stage 11 CSRA process
  • Webinar 5 - Protocol 27, Soil Leachate Tests for Use in Deriving Site-Specific Numerical Soil Standards.  Protocol 2, Site-Specific Numerical Soil Standards
  • Webinar 6 - Screening Level Risk assessment (SLRA) Update

The following 2 documents have been updated:

  • Technical Guidance 24 – Site Specific Numerical Soil Standards Model Parameters
  • Protocol 2 – Site Specific Numerical Soil Standards

The changes in these documents provide clarity to questions received from stakeholders:

  • Site-specific soil standards (SSSs) can only be derived on sites where groundwater has been or will be investigated
  • For pH sensitive substances, site-specific values for pH in soil are required when deriving SSSs for inorganics
  • The vertical distance between the base of the source and the water table cannot exceed 10 m

GeoEnviroPro Webinar March 6 & 8, 2018

February 6, 2018

Dry Cleaners in the Neighbourhood – Investigation and Remediation (March 6 & 8)

Dry cleaners now rank among our most prevalent high-risk sites.  How did this happen, and what can we do about it?  Answers to these questions may appear obvious, but when we drill down we soon find that the science behind the problem is complex and the range of possible engineering solutions is daunting.  In this two-part series you will learn about the history of dry cleaner operations, chemical use, common and not-so-common sources of contamination to the subsurface, relevant fate and transport processes, and the latest in effective remediation and risk management strategies.

This two-part webinar on dry cleaners will cover the following areas:

  • The five generations of dry cleaning machines
  • Historic and current solvent types and usage
  • Common modes of chemical release to the subsurface
  • Effective site characterization strategies and best practice
  • Source zone depletion and elimination
  • Remedial approaches such as ISCO, ISCR, SVE/AS, ZVI and others

Organized around 2 one-hour sessions:

  • Session 1: March 6th (9-10 AM PST / 12-1 PM EST) and
  • Session 2: March 8th (9-10 AM PST / 12-1 PM EST)

To register, go to https://www.regonline.ca/registration/Checkin.aspx?EventID=2165530