SUBSURFACE INVESTIGATIONS AND REMEDIATION

Lafser & Associates has the capability to provide subsurface contamination investigations and remediation
consulting services.  Soil contamination is often an issue that must be resolved for redevelopment and
Brownfields projects. Contaminated soils must be treated or removed to ensure that vapors do not enter
buildings and cause health issues for future occupants and tenants. Likewise, contaminated groundwater
must be monitored to ensure health and safety of future occupants.

Examples of soil contamination that Lafser and Associates has experience in characterizing,
monitoring, and remediation includes:

• Fuels, including gasoline and fuel oils
• PCPs
• Dry cleaning chemicals
• Kreosote
• Heavy metals – lead, mercury, cadmium
• Polynuclear aromatic hydrocarbons

Lafser & Associates provides the following consulting services for subsurface contamination
issues:

• Site Characterization
• Monitoring Well Installation
• Groundwater and soil sampling
• Missouri Risk Based Corrective Action (MRBCA)  Phase I Risk Assessments
• Excavation of soils
• Tank Closures
• In-situ remediation
• Soil Management Plans/AULs
• Environmental Testing

USEFUL LINKS:

Missouri DNR Tanks Division
Missouri DNR MRBCA Guidelines
Missouri DNR MRBCA Guidance Petroleum Storage Tanks
Missouri DNR Drycleaning Environmental Response Trust Fund