Hazardous Materials Remedial Engineering Underground Storage Tanks Landfills and Impoundments Corrective Action Planning Site Closure Geotechnical Engineering Geology Hydrogeology and Water Resources Remedial Investigations and Feasibility Studies Environmental Geology Environmental Project Management Property Transfer Phased Site Assessments Regulations Permitting

The purpose of a Phase 2 study is to identify by sampling and chemical testing of soil and groundwater, whether contamination exists at a Site. The scope of a Phase 2 study may include:

• Review of the Phase 1 Environmental Site Assessment
• Preparation of Sampling and Analysis Plan
• Preparation of a Cost Estimate and Schedule
• Pre-field Walkthroughs and Subcontractor Management
• Conduct Field Investigation

A Phase 2 requires a more extensive review of agency files to evaluate geologic and hydrogeological conditions, regional groundwater gradients, and types of contaminants that may have been introduced into the groundwater adjacent to the Site. This work also requires exploratory soil borings to collect soil and grab groundwater samples for chemical testing. In addition, one or more groundwater monitor wells are often required to allow for the collection of groundwater samples for chemical testing.

The required chemical testing of soil and groundwater samples depends upon the results of the Phase 1 study. The results of chemical testing will help identify potential contamination from on-site or off-site sources. If no contamination is found, a Phase 3 Site Assessment normally is not required. If contaminants are found, Bonkowski & Associates investigative results will evaluate the extent and type of contamination, address initial human health and environmental receptors, and provide initial estimates of contaminant migration rates and direction. If necessary, the results of this work provide the basis for any further investigations that may be required for designing a corrective action plan (Phase III Environmental Site Assessment).