The Geothermal Concerns

 

Please note that the provided sources do not contain any information regarding a newly developed geothermal system or drilled geothermal wells at the Pocahontas County High School or the shared landfill site. Because this specific system falls outside the provided material, you may want to independently verify its existence, specifications, and regulatory approvals.

However, based on the detailed geological and environmental data in the sources, we can heavily analyze the severe risks that drilling deep wells of any kind would introduce to this highly vulnerable environment.

The shared footprint of the high school and the waste facility sits atop the Greenbrier Limestone group, which is characterized by a classic karst topography. Introducing newly drilled wells into this specific terrain acts as a massive risk multiplier for several reasons:

The Fragility of the Epikarst Interface Unlike typical environments where thick layers of sand or clay naturally filter downward water movement, this site relies on an epikarst—a shallow, highly weathered, and wildly unpredictable layer of fractured limestone directly beneath the topsoil. Water and contaminants in this carbonate bedrock aquifer move rapidly through open underground conduits and solution channels, completely bypassing natural filtration.

Risks of Drilling in Karst Topography

• Altered Flow Paths and Sinkholes: The sources note that heavy earth-moving equipment, grading, and blasting on this site can fundamentally alter local surface water movement. In a karst zone, disrupting the subsurface—which drilling deep wells would certainly do—can shift delicate underground flow paths and unexpectedly open up new sinkholes.
• Contaminating the Shared Aquifer: Because both the high school and the solid waste site sit on the exact same unconfined bedrock aquifer, they share a water supply. Drilling activity can cause sudden, dangerous spikes in turbidity (mud and sediment) throughout this shared aquifer.
• Creating Rapid Pathways for Toxic Leachate: Landfills constantly battle leachate, a highly toxic fluid packed with heavy metals, volatile organic compounds (VOCs), and organic acids. If an older, unlined landfill cell leaks, or if a newly built transfer station spills contaminated washwater, newly drilled wells could inadvertently act as direct vertical channels, allowing these toxic fluids to drop straight through the epikarst and poison the drinking water supply within hours.
• Intersecting Subsurface Methane: The decomposition of buried waste generates massive amounts of methane gas, which is known to travel horizontally through dry underground cave passages and bedrock fractures for up to 1,000 feet. Drilled wells could intersect these highly unpredictable subterranean pathways, potentially creating new vertical escape routes for explosive gas to migrate into the school's low-lying buildings or utility tunnels.

Ultimately, while the sources do not mention the geothermal system itself, they explicitly warn that any heavy disruption of the epikarst on this shared property dramatically increases the likelihood that subsurface environmental hazards from the waste site will cross the property line and impact the school's public health.

Note:  PCHS does have a geothermal system!