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SR 81 - Abandoned Mine Restoration Area

SR 81 - Abandoned Mine Restoration Area

Project Details
Original Construction Year 2002
Most Recent Rebuild Year 2023
Total Cost 0.00
Total Capital Cost $249,348.00
Latitude / Longitude Method Google Earth/Maps
Latitude 41.098333
Longitude -79.859444
Elevation 1300
Project SR 81 - Abandoned Mine Restoration Area
Project Type Passive Treatment System
Project Status Good/Operational
AMD Source Underground
Stream Slippery Rock Creek
River Basin Ohio
Quad Hilliards, PA
City/Township Washington Township
County Butler
State PA

Description: SR81 passive treatment system was originally designed by BioMost Inc and constructed in 2002 to address two acidic metal-bearing discharges through use of an anoxic limestone drain, settling pond, and aerobic wetland. The system was most recently rehabilitated in 2023 and was redesigned by BioMost, Inc and rebuilt by Spur Excavation, LLC. Rehabilitation involved expanding the ALD, expanding the constructed wetland, increasing use of the natural wetland, and cleaning treatment components of sludge and debris.

Water Quality Data Summary

Treatment Technologies
Treatment Technology Quantity Status
Aerobic Wetland 2 N/A
Anoxic Limestone Drain (ALD) 2 N/A
Settling Pond 1 N/A
Location Links
GPS Directions
Project Contacts
Contact Person: cdenholm
Contact Organization: Stream Restoration Inc.
Project Designer: Cody Neely
Project Designer Organization: BioMost, Inc
Project Responsible Organization: Slippery Rock Watershed Coalition
External System IDs
Title System
D1-22 Datashed 1.0
PA-118 OSM
Project Performance