Geospatial

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Lexicon leverages the use of Geographic Information Systems (GIS) for analysis throughout its environmental practice. As an example, a wind turbine development project required an evaluation of bedrock fractures and fracture trace analysis to gauge the site's environmental impact potential. A GIS was generated from field data collected from bedrock outcrops, hillshade renderings of LiDAR elevation data, mappings of geologic faults/folds and the proposed wind turbine site locations to support the identification of areas more prone to pollution potential.

GIS and geospatial analyses are useful not only for "specialty" projects, but also for answering basic and important questions at a variety of sites. In the above example, elevation data preceding an operator's occupancy was used in conjunction with post-occupancy elevation data to calculate a "difference map," illustrating areas of infilling (in red) and thickness. The evaluation was used to develop a sampling scheme to evaluate soil quality and to support the property's remediation and redevelopment, concurrently.