For more than 50 years, STS has provided innovative yet practical solutions to a wide variety of private and public clients. The firm has worldwide experience.



STS Consultants, Ltd., (STS) is a Chicago consulting engineering firm offering an integrated approach to engineering design and environmental management in the commercial, industrial, and government markets.

In general, STS multidiscipline staff provides environmental and geotechnical engineering, construction materials testing, contractors and solid waste management. More specifically, STS services include: environmental compliance audits; site assessments; remediation design and construction; air quality sampling and permitting; landfill design, construction quality assurance, management, and closure; storm water management; contractors; lake management; wetland designs, permitting, and construction.

In addition, STS has provided geotechnical, environmental, and offshore drilling services for over 30 years. STS operate and maintain a large fleet of fully equipped drill rigs throughout the upper Midwest, along with a specially designed barge for offshore projects.


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