Acid Mine Drainage Treatment Facility Improvements and Condition Assessment

Acid Mine Drainage Treatment Facility Improvements and Condition Assessment Overview

Western Pennsylvania

GAI performed a condition assessment of a confidential Acid Mine Drainage (AMD) treatment facility’s steel clarifier structure and a lime silo building as part of a facility restoration project. This Confidential AMD treatment facility was constructed in the 1970s at the site of the former mine.

From 2016 through present day, GAI has supported the mine pool dewatering wastewater treatment plant. GAI supported the upgrade project including PADEP permitting and the design engineer’s report for new pumps, chemical addition, and filtration. The upgrade also included a conveyance system for leachate from a coal-combustion residuals landfill facility. GAI prepared an ALTA survey for the property and also a covenant for an infiltration berm installed for PA Chapter 102 best management practice. A clarifier and lime silo condition assessment were performed by GAI’s structural engineering team. The assessment included a review of deficiencies and an engineer’s estimate of probable costs to make the recommended improvements. GAI supports ongoing compliance reporting for the facility’s NPDES Permit.

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