Sequoia was established in Calgary, AB in 1998 to provide consulting firms, oil and gas companies and landfill sites with equipment designed specifically for insitu remediation. Our experienced staff designs and manufactures equipment tailored to each project. Our services include pilot testing, system design, manufacturing, chemical oxidation, dewatering, water treatment, system installations, and more. With branch offices in Regina, SK, Vancouver, BC, and Williams Lake, BC, we are able to service Canada nationwide and selected parts of the USA.The Sequoia staff consists of Geologists, ...