100-Year Old Mines Are Still Causing Environmental Problems
Friday, February 15th, 2008In 1880, Leadville, CO was a silver mining town with a population of about 40,000 people. By 2005, Leadville had less than 2700 citizens but as a part of Lake County with close to 8000 residents, the area and its citizens are in serious danger from those old mining camps. I wanted to find out more about Leadville so I looked at Wikipedia. According to Wikipedia Leadville was full of lead about 1 million short tons but also produced over 2.9 million ounces of gold, 240 million ounces of silver, 785 thousand short tons of zinc and 53 thousand short tons of copper.
Many years of mining left behind substantial contamination of the soil and water, so that the EPA designated some former mining sites in Leadville as Superfund sites designated for clean up. Wikipedia stated that according to authorities, the town is now 98% cleaned up and the Superfund designation is about to expire. Well guess again.
The Lake County Commissioners declared a state of emergency in Colorado today. As I understand it, because mines are hollow, the water that seeps down the walls and across the floor may carry with it toxic contaminants like lead. If allowed to run free as surface water runoff, it poses a hazardous waste problem to the area. During WWII the Bureau of Mines dug drainage tunnels to direct and contain the runoff. The Leadville mines tunnel was later sold to the Bureau of Reclamation as many of them were. According to an article in the Vail Daily News, “in 1992, a lawsuit by the Sierra Club prompted the construction of the tunnel treatment plant.” And everyone was supposed to live happily ever after.
However, there is a cave in somewhere in that mine now blocking the tunnel, and water is building up on the one side of the cave-in due to heavy snowfall and ice melt. It’s building up to a tune of “over a billion gallons of toxic acid and metal-laden water to form a pool at the headwaters of the Arkansas River, according to Commissioner Hickman. He explained that the water is now nearly 200 feet high and continues to apply pressure against the cave-in.” The same Vail Daily article said that the Denver Post stated “snow pack levels in the Upper Arkansas Valley are 163 percent of normal,” so more water than ever is going to continue to apply pressure. Commissioner Hickman said that he is afraid that the environmental degradation of the Arkansas River will be beyond anyone’s comprehension if the whole thing explodes. Lately, there appears to be a back-up situation from Leadville’s mine tunnel to the California Gulch tunnel treatment plant also.
The Bureau of Reclamation knows about the problem, has taken some steps but is moving too slowly for the commissioners. The commissioners should be on edge. This administration is not known for its quick action during human disasters, or for their prevention. The Bureau of Reclamation has been accused of failing to warn citizens when the Teton Dam in Idaho gave way in 1976. Fourteen people died and 300,000 acre-feet of water surged through the area causing one billion dollars in damages. A couple of Senators, Salazar and Wiens, have voiced their concern over the Leadville tunnel. Salazar accused the Bureau of not cooperating with the EPA or Colorado’s Dept. of Health. Other than that nothing much has been done as the water continues to build. There is a trailer park situated right where the water will rush through if the dam gives way.
All I can think of is the recent push to mine all over the country again eventually leaving more void pockets like the existing abandoned mines in Leadville. Mountain top strip mining, coal mining, and even in Michigan, mining for copper is on the agenda once again. Look at the age of the mines in Leadville that are still causing a problem and costing millions from the Superfund to clean up or contain. The U.S. hasn’t fully remedied the problems from mines that over 100 years old, but is willing to invest in new mining all over the country again? Add to that the Bureau of Reclamation’s failure to act on the behalf of citizen’s safety as it has in the past, and even though the EPA has pressured them with concern about this particular tunnel for years. Since, I don’t have much faith in the Bush EPA, this must be really bad for them to pay attention. It’s bad enough for us to pay attention and keep a watchful thumb on excessive mining in the future, especially for filthy fossil fuel like coal.