Asbestos Contaminated Soil - Case Study
Surrey, BC – An active industrial facility discovered they had a large area of land contaminated with heavy concentrations of asbestos at the back of their property. The waste had accumulated over the years before the dangers of asbestos were known and now required remediation due to communication wires and other underground utilities buried in the soil. Excavators could not be used due to the presence of the utilities and communication wires that could not be disrupted. Enviro-Vac was asked to provide a solution.
Before cleanup / removal of asbestos-contaminated soil could commence, a comprehensive risk-assessment and exposure control plan were developed which required in part, an evaluation of the contaminated ground cover and included, numerous soil samples to determine the type and concentration of asbestos and presence of other potentially harmful compounds within the soil. Additionally, an evaluation was required to determine the depth of the soil contamination and formulate a safe scope of work that would not cause asbestos or other contamination present to become air-borne since removal of asbestos ground cover and ground can pose a significant risk to air quality if not properly removed.
THE ENVIRO-VAC SOLUTION
Working with the clients Environmental Health & Safety department and engineering staff, Enviro-Vac developed a suitable plan to meet the necessary schedule, safely and on budget. Enviro-Vac developed procedures for asbestos abatement and removal of contaminated ground and utilizing diesel powered industrial vacuum loaders with self contained automated baggers, removed approx six feet of soil or approx. 2,500 tons. Contaminated soil was bagged in super sacks and safely disposed of.
As the work area was highly visible to the public all abatement work was done underneath a specially erected shrink-wrap containment installed by Enviro-Vac.
Worker decontamination was achieved through the use of Enviro-Vac mobile decontamination units. All of Enviro-Vac DCUs are robust, high-quality and self-contained with a series of fully functional decontamination rooms that come complete with self-contained high efficiency water management filtration systems for workers to decontaminate when working with hazardous materials. DCU's include progressive routing through a series of three - five, air-locked control chambers eventually providing access to a change room where “street clothes” can be found. Trailers and skid-mounted DCUs come complete with water supply management system with filtered waste tanks and HEPA negative air pressure filtration system.
Enviro-Vac's use of technology and cutting edge equipment including HEPA vacuum loaders and auto-baggers for decontamination of facilities and plants has been a trademark of the company since 1976. Contaminated blast media conveying, extraction by vacuum, industrial cleaning of dust collectors and baghouses, hazardous waste remediation and other services for hazardous and non-hazardous material handling.
Enviro-Vac have provided solutions to organizations of all sizes for an endless number of diverse applications. For over 45-years, Enviro-Vac have set the highest standards for reliability and "on budget - on time" performance in a variety of industrial and specialized markets.