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

Bonkowski & Associates, Inc. has completed more than 100 Phase I and II ESA’s throughout California. Our clients have included the federal government, independent and major oil companies, real estate developers, law firms, banks and savings and loans, and numerous private individuals and organizations. B&A utilizes the latest guidance provided by the American Society of Testing Materials to conduct these projects, simplifying the environmental assessment process at a considerable savings to the Client.

Our approach to conducting such work relies heavily upon the Client’s decision making process. By obtaining information in phases, informed property negotiations can be conducted maximizing the use of existing information. Future studies only depend upon the amount of existing information, which is most often available from published sources or previous investigation phases, or upon the status of the property negotiation itself. Our experience is that this approach maximizes the utility of expenditures, because future costs are staged to provide only the information which is necessary for financial and environmental liability protection and decision-making as the property transfer progresses.

Environmental Site Assessments usually fall into one of three categories:

Phase 1 – Environmental Site Assessment Phase 2 – Identification of Site Contamination Phase 3 – Full Environmental Site Evaluation

Phase 1 Environmental Site Assessments are an initial, low cost study designed to provide information to make an assessment of the potential of environmental contamination at a Site. It includes an office evaluation, site reconnaissance, and a review of readily available public agency files, but no new laboratory or testing data. Phases 2 and 3 are successively more comprehensive. They do include new field and laboratory investigations, and they are correspondingly more costly. However, based upon the results of a Phase 1study, the possible need for a Phase 2 or 3 study may not be indicated. In any case, the information obtained from a Phase 1 study is necessary to provide the basis for determine the scope and cost of a Phase 2 or 3 evaluation.