Reevesdale South Dip Tunnel

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Reevesdale South Dip Tunnel

Project Details
Construction Year
2006
Total Cost
$0.00
Total Capital Cost
226196.00
Latitude
40.784722
Longitude
-76.008889
Elevation
0
Project
Reevesdale South Dip Tunnel
GPS
0
AMD Source
Underground
Project Type
Passive Treatment System
River Basin
Quad
Delano
City
County
Schuylkill
State
PA
Stream
Wabash Creek

Description: Every minute, the Oxic Limestone Drain (OLD) system at the Reevesdale South Dip Tunnel treats approximately 900 gallons of Abandoned Mine Drainage (AMD) that would otherwise flow directly into Wabash Creek, a tributary of the Little Schuylkill River. This treatment reduces the amount of aluminum, iron, manganese, and acidity present. OLD’s are buried limestone ditches into which AMD water is directed. As it passes through, the water dissolves limestone, increasing the alkalinity and pH levels of the water. This lowers the acidity. Oxygen in the AMD water causes iron hydroxides to form and clog the system, therefore, OLD systems need to be flushed regularly. Water flushed from the drain is held in the wetland retention ponds until metals collect at the bottom for subsequent removal. Despite the installation of a flush pipe network, accumulations of metals in the limestone bed quickly decreased the system’s effectiveness. In the disastrous floods of 2006, the overwhelmed system failed completely, requiring extensive repairs in 2008. The repaired system includes a reconfigured water-flow path to increase exposure to the limestone surface and decrease the clogging potential. AMD treatment systems are a new technology that requires tailoring to individual site characteristics. The lessons learned from the Reevesdale system provide important information for future AMD design and installation. Location: Reevesdale, PA Source of Funding: Schuylkill Watershed Initiative Grant Date of Completion: 2006-2008 Leading Organization: Schuylkill Headwaters Association Cost: $226,196

Water Quality Data Summary

Location Links
Map
GPS Directions
Project Contacts
Contact Person:
Contact Organization:
Project Designer:
Project Designer Organization:
Project Responsible Organization: Schuylkill County Conservation District
Funding
External System IDs
Title System
D1-206 Datashed 1.0
PA-240 OSM
Project Performance