The EPA states that AMD is the largest environmental problem facing the mining industry. Acid mine drainage (AMD) is the outflow of acidic water from mines such as metal mines, coal mines and gold mines. AMD occurs naturally as part of the rock weathering process but is exacerbated by large-scale earth disturbances characteristic of mining and Fracking. AMD has destroyed over 10,000 miles of rivers in the U.S (Source: EPA). The EPA estimates the cost to remediate all AMD in the U.S to be $72 billion. There are currently 10 AMD producing mines under EPA dictum – a mandate from the EPA to remediate their AMD problem. The Berkeley pit (located in Butte Montana) contains over 40 billion gallons of AMD and is currently recharging at a rate of 2.5 million gallons per day. The Old Forge Borehole in Pennsylvania spews over 60 million gallons of AMD per day in the Chesapeake watershed — and is predicted to do so for the next 1000 years (Source: EPA). These EPA Superfund sites are prime targets for the application of the KNEW process which could provide a reliable source of revenue for many years.