Interpretation of Existing Information
Because the potential costs involved in groundwater remedial investigations are large, the best use of existing data and information must be made. Existing information and data can be site-specific, such as records of operations and records of previous investigations, or regional including surveys of geology, hydrology, surface soils, and meteorology. Existing data, however, can vary in quality; therefore, a thorough review and interpretation of these data prior to the investigation is necessary.