Remediation of Contaminated Sites

Contaminated land poses serious threats to health, water, and biodiversity. SIERA engineers deliver full-scope remediation—from site investigations and risk modeling to cleanup planning and on-site execution. We apply proven techniques such as soil vapor extraction, in-situ stabilization, and groundwater treatment to remove or isolate pollutants. Whether the site is a former industrial facility, landfill, or brownfield, our services restore ecological value and enable redevelopment. With regulatory compliance and long-term monitoring built in, we ensure land is not only safe—but sustainably usable.