| description:
|
Taggard D Conceptual Site Model Depth to Groundwater 1. Source: 2007 GeoDesign, Inc.
Description: A total of 559 data points were collected as part of this study. The data points, consisted of borehole and test pit logs with soil description and groundwater information. Each point was assigned a spatial location, soil unit were classified according to project-specific standard, depth to groundwater (if present) was recorded and a relative assessment of data quality assign. In addition, geographic information systems (GIS) layers were created, regional and study area specific geology and hydrogeology were assessed, lithologic cross sections were produced, and combination of data were used through an iterative process to produce the CSM presented herein.
Development of the CSM involved several assumptions, creating uncertainties. While creating cross sections, borehole data was limited to a maximum distance of approximately 400 feet orthogonal to the section line. Favor was given to those logs closer to the section line and to logs with higher qualifiers. Groundwater data was greatly simplified; groundwater levels vary with time, season, and location. With the objective of identifying potential areas of shallow groundwater, the groundwater measurements representing the highest elevation and, therefore, the shallowest groundwater were used. Due to these variations, the groundwater data must be used with caution.
NOTE: Data were compiled from various sources. This product was developed through digital means and may be updated without notification. No warranty |