|
Original Construction Year
|
2018
|
|
Most Recent Rebuild Year
|
|
|
Total Cost
|
0.00 |
|
Total Capital Cost
|
$0.00
|
|
Latitude / Longitude Method
|
Unknown
|
|
Latitude
|
40.566519
|
|
Longitude
|
-78.502328
|
|
Elevation
|
|
|
Project
|
Gibson-Halstock
|
|
Project Type
|
Passive Treatment System
|
|
Project Status
|
|
|
AMD Source
|
Surface
|
|
Stream
|
Little Laurel Run
|
|
Watershed
|
|
|
River Basin
|
Susquehanna
|
|
Quad
|
|
|
City/Township
|
Dean
|
|
County
|
Cambria
|
|
State
|
PA
|
Description: The Gibson-Halstock discharge emerges from a surface mine along the north slope of Little Laurel Run, a tributary of Clearfield Creek. Typical flow is about 100 gpm with acidity 55 mg/L, Fe 2 mg/L and Al 4 mg/L. In 2016, treatment systems consisting of 2 flushable limestone beds plus an inflow settling basin, and 2 outflow settling basins were completed.