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Mount Holly hears plan after phenols found at former treatment plant; monitoring and remedial testing to proceed
Summary
Engineers told the Mount Holly council on March 23 that groundwater sampling at the former wastewater treatment plant detected phenolic compounds above NCDEQ 2L standards; HDR and city staff outlined monitoring‑well installation, soil treatability testing and a likely remediation and groundwater‑use restriction that could take more than a year to complete.
Engineers from HDR told Mount Holly City Council on March 23 that phenolic compounds were detected in sediment and groundwater at the former wastewater treatment plant site, and they described a planned assessment and remediation pathway required by the North Carolina Department of Environmental Quality (NCDEQ).
Barry Sharon of HDR said the base contract for decommissioning the plant was awarded last summer and totals about $10 million; the council previously voted to convert the site into a park extension and the city is working to finish grading and other work under a roughly $15 million grant. Sharon said the project team expects to spend roughly $13 million of the grant to date and is coordinating with the grant administrator on which additional site work (including parking and stormwater modifications) the grant will cover.
HDR senior geologist Mark…
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