S OF CY-YAK TUNNEL DOWNSTREAM
The site consists of about 18 square miles in Lake County, Colorado, and includes Leadville, the highest incorporated city in the United States. Mining, mineral processing and smelting activities in the area have produced gold, silver, lead and zinc for more than 130 years. Mining in the Leadville area began in 1859 when prospectors working in the channels of the Arkansas River tributaries discovered gold at the mouth of California Gulch. Wastes generated during the mining and ore processing activities contained metals such as arsenic and lead at levels posing a threat to human health and the environment. These wastes remained on the land surface and migrated through the environment by washing into streams and leaching contaminants into surface water and groundwater. The site was added to the National Priorities List in 1983, and in 1994 was divided into 12 geographically based areas, identified as operable units. Investigation of the site began in the mid-1980s.
34 |
People living within a 1 mile radius |
$49,519 |
Average Income |
15 |
Occupied homes |
No stories have been submitted for this site.