In 2013, the Envirocon and WorleyParsons team completed a complex design/build project at the former Mowson Pond Mercury Mill Site in a remote area of British Columbia near Gold Bridge. As a follow-on to that successful project, the team has been invited and approved to present an abstract at the Science Advisory Board for Contaminated Sites Conference (SABCS) 2014 titled “The Dynamics of Working in a Design/Build Team: Mowson Pond Retort Mercury Remediation Project.”
The Ministry of Forests, Land and Natural Resource Operations (MFLNRO) Crown Contaminated Sites Programs awarded the project to the team in 2013 after extensive environmental site assessments and an involved bidding process.
The goal of the Mowson Pond project was to finalize and implement a Remedial Plan that would:
- Mitigate or remove the potential exposure pathways that are at risk to Human Health and the Environment
- Comply with applicable Regulatory Acts (BC Environmental Management Act, Water Act and Mines Act), Regulations, Protocols, Policies, Standards, Guidelines and Procedures
The general scope of work at the project included the removal of hazardous waste (containing mercury contamination) and scrap metal for disposal offsite. The team also consolidated the remaining waste onsite under a 1-meter (minimum) thick cap, which consisted of general compacted backfill, a nonwoven geotextile warning layer and an erosion control cellular confinement layer filled with loosely packed growth media.
The abstract presentation includes discussion associated with the project regarding design/build team dynamics; identifying data gaps related to design and constructability; logistical management of the remote site location; removal of mercury contamination in soils, equipment and concrete; selection and understanding of disposal site facility requirements; and placement of the mine-waste cover on a steep slope.
Please join members of the project team Kelly Forseth and Lee Martin from WorleyParsons and Brian Suen from Envirocon for their presentation on September 25, 2014 at the Segal Graduate School for Business in Vancouver, during the Parallel 2 segment on Mining and Metals.