Press Releases: More Acid Rock Drainage Problems at I-99 Project
Posted on Monday, 07 November 2005 (09:54:32) EST by admin
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State officials are ordering an investigation into acid-rock drainage in Centre County from an Interstate 99 construction site near Port Matilda four miles west, separate from the acid-drainage problem at Skytop.
That order from the state Department of Environmental Protection to PennDOT says one sample of runoff from near a road cut just west of the new I-99 overpass above Route 220 exceeds limits for iron and acidity, and sulfate levels in groundwater samples are above state limits as well.
DEP wants PennDOT to identify all areas where the pyretic Brailler Shale vein has been disturbed by I-99 construction as well as where excavated material has been placed.
DEP is also demanding a water monitoring plan for the three-mile section that goes around Port Matilda to the north by November 23rd.
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