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Additional Consulting Services


Archaeological Surveys

Site development work can often require archaeological surveys to determine if the proposed development might impact cultural resources. Southern Illinois is rich with Native American artifacts and archeological sites that are protected by state and federal regulations.

Damage to historical resources cannot be undone and can be costly. QTE will assist our clients in complying with all applicable federal and state historic preservation regulations. Archaeological services offered by QTE include:

  • Phase I Resource Identification Surveys
  • Phase II Site Evaluations (National Register of Historic Places Eligibility)
  • Phase III Data Recovery Investigations
  • Construction Activity Monitoring

Wetlands Delineations

Section 404 of the Clean Water Act protects wetlands from unpermitted dredge and fill activities. QTE can assist our clients with wetlands delineations to determine if jurisdictional wetlands are present within a proposed development site. We have experience helping our clients with a wide range of water/soil analysis and consultation. If jurisdictional wetlands are identified, QTE will assist with any required permitting and wetlands mitigation planning.

Environmental, archeological, and wetlands issues involve numerous agencies at the federal, state, and local level. Navigating through the regulations, agencies, and jurisdictions can be treacherous. Our firm has the knowledge, experience, and credentials to help you through the process of compliance using the proper EPA method and recommendations.

To limit liabilities and avoid costly delays and regulatory penalties, contact us for more information.

Asbestos Surveys

The National Emission Standards for Hazardous Air Pollutants (NESHAPS) regulations, as well as certain State and local laws and ordinances, require the completion of asbestos surveys prior to the demolition or renovation of any commercial or public building. QTE is licensed to perform asbestos surveys in order to determine the presence of asbestos in suspect building materials and provide recommendations for asbestos remediation and disposal. Many testing and consultants consider these specialty services but we help clients with these surveys on a daily basis.

Residential Radon Testing

Long-term exposure to elevated concentrations of radon gas can cause lung cancer. QTE has performed hundreds of residential radon tests in the Metro East Illinois area for real estate transactions and concerned homeowners.

QTE can assist our clients with radon testing to determine the indoor radon concentrations and evaluate the need for a radon mitigation system, or to determine if an existing radon mitigation system is working effectively. QTE does not perform radon mitigation work but can provide assistance to clients with mitigation contractors.

Septic System Evaluations

Local health departments are responsible for carrying out the Illinois State Code for Private Septic Systems. Septic system permits typically require soil information in order to determine what kind of septic system will work best with a particular type of soil conditions and ph level.

Soil properties can vary from lot to lot. Our firm has consulted in a wide variety of soil analysis situations. Certain soils are slowly permeable and require a larger filter bed area, while other soils may have a high seasonal water table that could periodically interfere with the common filter bed area.

QTE has experienced personnel that can evaluate the on-site soil conditions in order to assist with the septic system design, location, and functionality

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.