An environmental site assessment reviews a property for defined environmental concerns using methods suited to its purpose and scope.
Definition
For a civil engineering firm, an environmental site assessment may support a property transaction, redevelopment, permitting, or project planning. Depending on the assignment, it can include records review, interviews, site observations, sampling, or other investigation. The proposal and report should state the purpose, applicable practice, methods, limits, intended users, and any reliance conditions. A Phase I assessment is generally records-based and observational, while a Phase II investigation adds sampling or field work to answer defined questions. Firms may scope and price these services differently based on site size, access, available records, technical disciplines, and the level of investigation requested. The assessment does not establish every possible environmental condition, guarantee that contamination is absent, or by itself determine legal liability or authorize development. Findings and next steps depend on professional interpretation and, where applicable, regulatory decisions. For federal programs and requirements, see the EPA.
How owners use it
- Define the assessment purpose, methods, assumptions, and limits when preparing a proposal.
- Separate records review and site observation from sampling or other field investigation when estimating staff time and subcontractor costs.
- A $12,000 assessment fee minus $2,000 in laboratory and field costs leaves $10,000 before other project costs.
- Explain findings and follow-up questions to clients while identifying the report's intended users and reliance terms.
