Lausanne Tunnel
The Lausanne Tunnel is the largest point source of abandoned mine drainage metals pollution to the Lehigh River watershed. In 2014 a Hulpits grant was provided that enabled installation of a 3rd 14" x 30' feeder pipe to the wetland as well as instrumentation to record the wetland flow. We are now treating an additional near 1000gal/min of mine drainage in the wetland AMD passive treatment system. The two graphs depict both the wetland flow, which is now at design rates, an
