Karst geology and sinkhole risks near McGregor Road
Carroll County
Summary
The Great Valley Propane site sits in sinkhole-prone karst terrain, and Commissioner Robertson raised long-standing worries about open sinkholes along Route 31 and quarries refusing to remediate them. The developer says the project will actually fix an existing sinkhole by replacing a leaking grass channel with pipe.
At a glance
- Total mentions
- 1
- Last 30 days
- 0
Last discussed Apr 21, 2026.
Impact analysis
Neighbors get an existing sinkhole source remediated as part of the development.
Residents near Route 31 remain exposed to unremediated quarry-area sinkholes.
Mentions & discussions (1)
Related development
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