In West Virginia, how is a deep well defined in relation to the Onondaga formation?

The definition of a deep well in relation to the Onondaga formation in West Virginia is established as being below the uppermost member of the Onondaga formations. This characterization is significant because it distinguishes the specific geological layers and their depths, which is essential for understanding the context of groundwater extraction and geological assessment.

In geological terms, the Onondaga formation consists of a series of sedimentary rock layers, and the uppermost member represents the top of this formation. By defining a deep well as being situated below this upper level, it indicates that water or resources are being accessed from deeper geological strata, highlighting their potential for different mineral compositions, water quality, and pressure gradients compared to shallower wells. This definition is crucial for regulatory, environmental, and resource management practices within the state.

Understanding this distinction helps in water resource planning, determining the sustainability of water extraction, and ensuring compliance with state regulations regarding water usage and geological assessments.