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Klondike KL-1

Klondike KL-1

Project Details
Original Construction Year 2007
Most Recent Rebuild Year
Total Cost 0.00
Total Capital Cost $0.00
Latitude / Longitude Method Unknown
Latitude 40.551944
Longitude -78.497500
Elevation 0
Project Klondike KL-1
Project Type Passive Treatment System
Project Status
AMD Source Underground
Stream Little Laurel Run
River Basin Susquehanna
Quad Altoona
City/Township Gallitzin
County Cambria
State PA

Description: A passive system was installed originally in 2007 consisting of a inflow pond, Vertical Flow Pond, Outflow (Settling) pond, and a wetland. The inflow iron concentration was very high, and Fe accumulated in the VFP. In 2009, 2 oxidation Ponds were added for low pH iron removal. This was moderately successful in reducing the Fe, but it was still a problem. In 2010, a slag bed was installed near the outflow pond. This worked for a year or so, but the alkalinity then dropped off. In 2014 the system was extensively renovated - old compost removed, some limestone added and 2 ft of new compost mixed with limestone added. The performance improved greatly but iron still accumulated and caused overflow at high flow. In 2018 the iron was removed with a suction pump. We'll see how that goes.

Water Quality Data Summary

Treatment Technologies
Treatment Technology Quantity Status
Aerobic Wetland 1 N/A
Open Limestone Channel (OLC) 1 N/A
Settling Pond 1 N/A
Steel Slag Pond 1 N/A
Vertical Flow Pond (VFP) 1 N/A
Location Links
GPS Directions
Project Contacts
Contact Person: awr1
Contact Organization: Clearfield Creek Watershed Association
Project Designer: John Foreman
Project Designer Organization:
Project Responsible Organization: Clearfield Creek Watershed Association
no data available
External System IDs
Title System
D1-401 Datashed 1.0
PA-202 OSM
Project Performance