Environmental Engineering Services

STL offers comprehensive environmental consulting and testing services to companies, individuals, and municipalities. Such services include Phase I and II environmental site assessments, assisting in the selection and coordination of the work of remediation contractors, asbestos inspection, mirco purse groundwater sampling, sediment control inspection, landfill closure quality assurance, radiological assessments, UST and RCRA closures, and facility investigation.

Utilizing the full resources of our testing equipment and experienced environmentalists, geologists, and engineers,
STL is committed to providing the highest quality of environmental consultation.


Services Include:


Phase I Environmental Site Assessment

  • Provide a historical review of the subject and neighboring sites
  • Obtain building, fire, and environmental records to uncover any violations
  • On-site observation to verify the presence of underground storage tanks and whether past or present owners have stores, created, or discharged hazardous waste
  • Provide comprehensive reports to clients. Any uncovered “red flag” trouble areas could lead to Phase II environmental site assessment

Phase II Environmental Site Assessment

  • Provide field sampling of waste, soil, and groundwater to identify suspected contaminants by STL’s crews and engineers who are certified under the OSHA 40-hour HAZWOPER training program
  • Provide analytical laboratory results
  • Provide comprehensive site assessment reports to the client

Asbestos Inspections and Asbestos Abatement Supervision

STL has Ohio Department of Health licensed asbestos hazard evaluation specialists and an asbestos hazard abatement specialist to service asbestos projects.

Asbestos Inspections and Asbestos Abatement Supervision

STL has a Certified Professional in Erosion & Sediment Control (CPESC) and Certified Erosion, Sediment, and Storm Water Inspector (CESSWI).

Additional Services

  • Assist in selecting and coordinating the work of remediation contractors
  • Micropurging groundwater sampling
  • Landfill closure quality assurance
  • Perform underground storage tank (UST) closure assessment and site assessments
  • Radiological assessments
  • RCRA closures and facility investigation
  • Environmental monitoring
  • STL has environmental staff certified by the Ohio EPA Voluntary Action Program (VAP)