BC Ministry of Environment Released Protocol 13: Screening Level Risk Assessment

This protocol describes the procedures required to complete a screening level risk assessment (SLRA) for a contaminated site in British Columbia. The intention of SLRA is to evaluate whether contamination at a specific site poses acceptable or unacceptable risks to human health and the environment. Such an evaluation includes a simple assessment of exposure pathways and receptors. Contaminated sites that are deemed to have no unacceptable risks (i.e., pass SLRA) are considered to satisfy the risk-based standards of the Contaminated Sites Regulation (the Regulation) and are eligible for a Certificate of Compliance. No further remediation is required at these sites as long as site conditions do not change.

Protocol 13: Screening Level Risk Assessment

  • A SLRA completed under this protocol must be carried out by a qualified professional with appropriate demonstrable experience in accordance with Section 63 of the Regulation.

  • A SLRA completed in accordance with this protocol does not require a Director’s decision except as described in Sections 3.2 and 7.0.

  • SLRA may be used for any substance subject to the requirements specified in this protocol.


The SLRA procedure comprises five main steps:

  1. Problem formulation

  2. Check for requirements/precluding conditions/exemptions

  3. Evaluation of potential exposure scenarios

  4. Determination of risk

  5. Reporting of SLRA results

A flow chart summarizing the overall SLRA evaluation process (steps 1 through 4 above). The flowchart is provided for illustrative purposes only

Want more information? Always be updated on regulatory and legislative changes! Click here to learn more about our products. Sign up for our 15-day trial to receive regulatory and legislative updates straight to your inbox!

©2019 by NaturalResource.ca