(434) 466-1280
cold clear water from a new well
Welcome to CSG Geotechnical Services
CSG Geotechnical Services is the geology and groundwater hydrology division of the Center for Sustainable Groundwater. We provide technical and consulting services in the areas of groundwater, geology and geophysics.
Based in central Virginia, our service area is historically focused on the mid-Atlantic states but we seek opportunities elsewhere in the US and world-wide. We are committed to sustainable use and responsible stewardship of water, mineral and land resources.
 Groundwater / Geology Q&A
Where’s the best place to drill my well?
Finding the optimal drilling site on a given piece of property begins with a hydrogeologic assessment where we investigate the geologic setting, groundwater flow, and recharge capabilities of the site. In many cases, the most precise way of locating the best drilling site is through geophysical survey, designed using information gained through the hydrogeologic assessment. Read more…
What’s the sustainable yield of my well?
The sustainable yield of a well is the maximum rate at which water can be pumped from the well without damaging either the well or the natural ecosystems and other human interests that are dependent on stable groundwater levels. Sustainable yield is determined through a pumping test of the well, in conjunction with analysis of the local groundwater system and environment. Read more…
Is my well water safe to drink?
There are a variety of chemicals, natural and man-made, that can affect the quality and safety of well water. The only way to ensure the purity of your well water is to conduct water quality testing. We conduct research into the present and past use of the land in order to determine what chemical analyses are appropriate for your well. Read more…
Will we hit rock when we dig?
In many places the depth to solid bedrock is highly variable and difficult to predict from the surface. Encountering unanticipated shallow rock during highway or other construction can be very costly. Accurate knowledge of depth to rock can be gained through high-resolution geophysical survey. Read more…
Are there caves under this site?
Caves and void spaces are common underground occurrences in areas of limestone bedrock. These features are not always easy to spot from the surface, yet have potentially serious implications for highway and other types of construction. High-resolution geophysical survey can highlight underground caves and voids that could collapse under land development at the surface. Read more…
Are there valuable minerals on my property?
If raw materials can’t be grown on farms, we have to get them out of the ground…mineral deposits of potential economic value occur in just about every geologic setting around the world. Knowledge of what exists in underground soils and rock enables the landowner to make informed choices as to protecting or developing the resource. Read more…