SITE INVESTIGATIONS

Most remediation projects begin with an investigation to characterize the extent and magnitude of contamination at a site. Soil samples are often collected and analyzed for target analytes based on the history of operation. Water quality assessments, including one-time sampling and/or dedicated wells, may be used to assess water quality. Pump tests and groundwater modeling may be conducted to provide data that aids in the design of removal wells and size appropriate remediation equipment. Information from the site investigation is used, in conjunction with treatablility testing, to estimate the life cycle, capital, and operating costs for remediation.

• Field Screening
• Soil and Groundwater Sampling and Analysis
• Aquifer Testing and Modeling
• Surface Water Assessment
• Assessment of Chemical and Biological Remediation

FEASIBILITY STUDY & TREATABILITY TESTING

Once the extent of contamination has been identified, we evaluate available technologies and identify remedial actions for further evaluation. Treatability and/or pilot testing may be conducted to provide the necessary data for optimization of the design of a full-scale remediation system.

• Establish Physical Limitations of Site
• Identify Design Parameters
• Select Remediation Technologies
• Assess Comparative Remedial Costs

REMEDIATION SYSTEM DESIGN

Our design experience covers a broad range of remediation technologies, including both in-situ and ex-situ physical/chemical and biological treatment processes. Our engineers are continually evaluating innovative applications of existing technologies to ensure that only the most efficient, cost-effective solutions are selected for implementation. Upon selection of a preferred technology, our engineers and computer aided design (CAD) professionals prepare detailed plans and specifications, as well as administer bidding and contracting for treatment system installation.

• Consideration of Owner Input and Site Use Needs
• Contractor Prequalification Work
• Value Engineering
• Bid Administration

CONSTRUCTION MANAGEMENT

Our engineers and construction managers have extensive experience in the construction and startup of physical/chemical and biological systems to treat contaminated soil and groundwater. At Liesch, our professional staff is trained for safety and maintains regular communication with our corporate safety officer to ensure that all safety concerns are addressed throughout construction.

• Construction Oversight
• Real-time Field Screening
• Owner/Contractor Liaison
• Contract Administration Work
• Management and Minimization of Change Orders
• Health and Safety Oversight

OPERATION & MAINTENANCE ASSISTANCE

Our engineers and field technicians provide your organization with startup services as well as operation and maintenance of your remedial systems. Liesch can also provide training, operational assistance, and maintenance manuals for site personnel in order to reduce the costs of operation.

• System Startup
• Operator Training
• Operations and Equipment Maintenance
• System Optimization and Troubleshooting
• Permit Compliance and Regulatory Reporting