Cài đặt vật lý là một mô tả về đất nào là tài sản nằm IS. Các đặc điểm vật lý là dựa vào để hỗ trợ đầu cơ như các tiềm năng cho việc di chuyển của chất gây ô nhiễm vào nước ngầm và đất xung quanh khu vực Trong thời hạn. Mức độ chuyên cần trong điều tra năm leo thang nên bị đâu tion tiềm năng migraâ € 'của một chất gây ô nhiễm cho một tầng nước ngầm lớn IS đáng kể. Một trang web mà có thể có đất biên giới và ngăn chặn. | Chapter 4 Physical Setting Introduction The physical setting is a description of the land on which the property is located. The physical characteristics are relied on to assist in the speculation as to the potential for migration of contaminants to the groundwater and soils within surrounding areas. The level of diligence in an investigation should be escalated where migration potential of a contaminant to a major aquifer is significant. A site may have soils that confine and prevent migration of hazardous substances. The closest drinking water source is a private well outside a 1-mile radius and the water source is 400 feet down with a layer of impermeable unfractured slate flat rock as a barrier. The concern for a site such as this is not as great as one involving a property that is directly over a recharge zone to a major aquifer where surface contaminants may easily migrate to the groundwater. The information contained within this chapter provides the reader with the basic concepts for understanding the relationship between a physical setting and its impact on the spread potential of hazardous substances. Hazardous substances may spread through soil or rock formations surface water groundwater and air. If you require a more in-depth understanding of the soils and groundwater consult a geologist or hydrogeologist. For instance if the investigator determines that there is probable soil contamination on an adjacent property that could result in a costly impact to the property being evaluated the investigator may seek additional expertise. A possible problem has been identified and the soil is highly variable so it is difficult to predict migratory flow. Then a geologist or hydrogeologist could project the probability for that contaminant to migrate to where it could have a detrimental effect on the property and its immediate environment. Environmental factors include the relative location geography land contouring topography geological characteristics surface .