(618) 632-9900 (636) 332-1153 marketing@qteinc.com

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Environmental Testing Labs and Consulting


Illinois & St Louis Soil Testing Services & Environmental Testing Services

Quality Testing and Engineering, Inc. provides environmental consulting lab services to our clients in the Metro East, Southern Illinois, and St. Louis, Missouri areas. Our environmental testing laboratories have the technical expertise and qualifications to provide our clients with full-service environmental assessment and a plan to deal with liabilities that may arise.

QTE will also assist you with understanding and complying with federal and state regulations pertaining to archaeological resources such as the National Historic Preservation Act (NHPA) or the National Environmental Policy Act (NEPA).  QTE also does Geotechnical Engineering and Construction Materials laboratories test.

Projects of all types and sizes can have environmental concerns. If not properly evaluated and addressed by certified environmental testing labs, these concerns can become complicated regulatory issues and result in costly project delays. Our experienced firm of highly qualified and certified professionals will test your site with a soil analysis and identify potential environmental concerns and liabilities in our test results.

Environmental liabilities can cause costly delays. Navigating the regulatory process is extremely difficult.

Once we have completed our environmental testing, we guide our clients through the regulatory process. Regulations at the state, federal, and local level can be extremely difficult to navigate. Our team has extensive experience across jurisdictions and the knowledge necessary to help you avoid regulatory entanglements and costly delays.

Typically, the initial phase of a project would involve an Environmental Site Assessment or ESA. This assessment checks your site for potential environmental problems. If a problem is identified by our analytical laboratory, a Phase II ESA is performed to explore for the presence of subsurface contaminants.

Additional phases of work would include a subsurface contaminant exploration (more detailed than Phase II ESA) and a site characterization. The site characterization will determine the lateral and vertical extent of impact and the site-specific soil and groundwater properties. These phases of work will can include the following tasks:

  • Soil Sampling
  • Groundwater Sampling and Monitoring
  • Geophysical Surveys
  • Analytical Testing
  • Waste Characterization
  • Groundwater Modeling
  • Soil Gas Sampling

Once site characterization is complete, QTE will work with the development plan to minimize cleanup work. For example, if an asphalt parking lot covers an area of contamination, the need for cleanup in that area is reduced.

If remediation of soil or groundwater is necessary, QTE will evaluate and propose the most cost-effective technology. Corrective Action Plans (CAPs) are then developed based on extensive experience and direct communication with regulatory agency staff (as applicable). QTE personnel have prepared CAPs utilizing various remedial methods including:

  • Excavation and Disposal
  • Air Sparging Systems
  • Soil Vapor Extraction Systems
  • Bio-venting
  • Groundwater Recovery Systems
  • Bioremediation of both Soils and Groundwater
  • Bio-augmentation of both Soils and Groundwater
  • Natural Attenuation Monitoring
  • Free-Phase Product Recovery Systems
  • Metals Stabilization

Additional Consulting Services

We offer a wide range of testing services including:

  • Archaeological Surveys
  • Wetlands Delineations
  • Asbestos Surveys
  • Residential Radon Testing
  • Septic System Evaluations

Environmental Consulting Services

Let our highly qualified team assist you with these services:

  • Phase I Environmental Site Assessments (ESAs)
  • Phase II Environmental ESAs
  • Subsurface Contaminant Exploration
  • Site Characterization
  • NEPA Surveys and Section 106 Consulting
  • Design and Implementation of Corrective Action Plans
  • Aquifer Testing
  • Groundwater Monitoring and Modeling
  • Well Design
  • Underground Storage Tank (UST) Compliance
  • UST Removal
  • Regulatory Compliance

Corporate Office

803 W State St, O’Fallon, IL 62269
(618) 632-9900
(618) 632-9922



Regional Office
(By appointment only.)

206 S. Linn Ave. Wentzville, MO 63385
(636) 332-1153
(636) 332-5781



QTE can help you clean up contaminants and bring you into compliance as quickly and cost-effectively as possible.

Quality Testing & Engineering, O'Fallon, IL / St. Louis, MO

Quality Testing & Engineering, with construction testing and engineering offices in O'Fallon, Illinois and Wentzville, Mo, serves the St Louis, Missouri metropolitan area as well as areas of Southern Illinois including O'Fallon, Illinois, Edwardsville, Illinois, Alton Illinois, Belleville, Illinois, Troy, Illinois, Columbia, Illinois, Scott Air Force Base, Illinois and other areas. We provide construction testing, environmental consulting and testing, geotechnical exploration, construction materials testing and other environmental services to the St Louis area, including Wentzville, Missouri, O'Fallon Missouri, St Louis County as well as all areas of Southern Illinois.

Quality Testing and Engineering products range in size from residential homes to Industrial/Refineries, heavy industrial projects such as power plants, refineries and factories. QTE works in commercial, educational, institutional, industrial, recreational, refinery, transportation and warehousing projects.