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GIS/Database
Management
TerraGraphics offers
a number of services in the field of mapping and geographical analysis. The
GIS (Geographic Information Systems) Team utilizes a diverse range of tools
including GIS and mapping programs, CAD, and GPS (Global Positioning Systems).
These tools allow for the accurate mapping, tracking, and spatial analysis of
geographical data.
The Bunker Hill
Superfund Site is one of TerraGraphics’ biggest projects. Major activities
within this 21-square mile region are kept track of using GIS. The database
includes over 5,000 individual properties in seven towns. This represents one
of the largest geographic databases managed by TerraGraphics. The database contains
the following map layers:
- Property Boundaries,
- Hydrology,
- Rights-of-Ways,
- Zoning Boundaries,
- Topography,
- Sampling Points,
and
- Infrastructure
including Water, Gas, and Sewer Lines.
These layers have
been used to perform multidiscipline analyses within the site which includes
determining soil contamination levels, tracking remedial progress, lead dust
distributions, and damage due to flooding.
Extensive GIS maps
will also be kept as an ongoing record of activities within the site. As development
within the site proceeds, GIS mapping can illustrate what areas will be suitable
for development, soil contamination levels, and how further contamination from
future development can be avoided.
One of the more
recent projects undertaken by TerraGraphics is a soil contamination study, which
was performed throughout the Coeur d’Alene River Basin in northern Idaho.
In preparation
for this study, an extensive GIS mapping effort was undertaken for the purpose
of ensuring that the sampling teams could easily locate predetermined sampling
points within the study area.
After completion
of the sampling event and laboratory analysis, TerraGraphics’ GIS Team
determined the difference in contamination levels within the study area. GIS
analysis was used to compare the pre-remediation contamination level with the
post-remediation contaminant levels.
Example
Projects:
