How does Triad deal with sample representativeness?
The Triad handles sample representativeness by building a conceptual site model (CSM), and then using the CSM to guide additional data collection to fill remaining data gaps and further evolve the CSM. The completeness and accuracy required in the final CSM is governed by what is required to make project decisions. Building and refining the CSM and demonstrating sample representativeness is an iterative process. Dynamic work strategies combined with real-time measurement systems allow much of this iteration to be performed cost-effectively and efficiently during the course of field activities. Sample representativeness begins in systematic planning. The history of the site, any information concerning contaminant release and distribution mechanisms, along with data from historical or current environmental sampling are used to build and refine the conceptual model. Once the CSM is understood well enough to understand contaminant populations (especially their spatial or temporal boundarie
