Sulfide Mining In Michigan Torch Lake

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Introduction Mining, particularly sulfide mining, presents certain unavoidable ecological risks. Take for example the case of Torch Lake, in Michigan's upper peninsula, where copper was mined between the 1860's and the 1960's. Waste from the mining process was dumped into Torch Lake or Judge rejects U.P. Back Forty Mine's wetlands permit,1 day ago· Aquila Resources Inc. proposes to mine for gold, zinc and copper within 150 feet of the river — in the western U.P. on the Michigan-Wisconsin border — via an open-pit sulfide mine on 83 acresCleanup of abandoned mining waste in the Keweenaw,Oct 20, 2020· Cleanup of abandoned mining waste in the Keweenaw Peninsula making great progress EGLE’s Abandoned Mine Waste project focuses on mining-era wastes historically discarded in or near Torch Lake

Huge Upper Peninsula mine OK'd despite major concerns

Aug 13, 2019· The open-pit sulfide mine would operate on 83 acres and its pit would be 2,000 feet by 2,500 feet, and 750 feet deep, according to the company.sulfide mining in michigan torch lake,sulfide mining in michigan torch lake MC WorldMining, particularly sulfide mining, presents certain unavoidable ecological risks. Take for example the case ofSediment Toxicity from Copper in the Torch Lake (MI) Great,Jan 01, 1999· Torch Lake (MI) is a Federal Superfund Site and a Great Lakes Area of Concern. and copper carbonate has a solu- bility of about 250 mg/L. Sulfide precipitates would be stable as well. However, work in the Keweenaw waterway has shown the copper-to-AVS (acid volatile sulfide) ratio is generally greater than 100 meaning that sulfides are not

Cleanup of abandoned mining waste in the Keweenaw

Oct 20, 2020· Cleanup of abandoned mining waste in the Keweenaw Peninsula making great progress EGLE’s Abandoned Mine Waste project focuses on mining-era wastes historically discarded in or near Torch Lake Torch Lake suffers algae outbreak The Mining Journal,CENTRAL LAKE (AP) — A northern Michigan lake that’s famous for its turquoise waters is facing an outbreak of brown algae that’s left its sandy bottom covered with mushy, squishy mats. RickTorch Lake Michigan Technological University,Torch Lake was the tailings pond for both the C&H mines in Calumet and the Quincy Mine in Hancock, the two largest mines in the whole district. A significant fraction of the entire volume of the lake was filled with stand sands and other mining wastes. This period

sulfide mining in michigan torch lake

sulfide mining in michigan torch lake MC WorldMining, particularly sulfide mining, presents certain unavoidable ecological risks. Take for example the case ofSediment Toxicity from Copper in the Torch Lake (MI) Great,Jan 01, 1999· Torch Lake (MI) is a Federal Superfund Site and a Great Lakes Area of Concern. and copper carbonate has a solu- bility of about 250 mg/L. Sulfide precipitates would be stable as well. However, work in the Keweenaw waterway has shown the copper-to-AVS (acid volatile sulfide) ratio is generally greater than 100 meaning that sulfides are notTorch Lake AOC Great Lakes Areas of Concern US EPA,Immediate environs are those areas along the shore of Torch Lake where wastes from the production of copper contributed directly to the contaminant loadings of Torch Lake. Mining of the native copper found in the region's bedrock formations began during the 1840s and continued until 1968, when all mining related operations ceased.

An Integrated Assessment of Torch Lake Area of Concern

Torch Lake Area of Concern: Summary Noel R. Urban, Carol A. MacLennan, Judith A. Perlinger Michigan Technological University Great Lakes Research Center Contribution No. 53 Funding provided by Michigan Sea Grant, MICHU-18-202 Beached remains of Quincy Dredge #2, Mason, Michigan. Photograph by Todd Marsee, Michigan Sea Grant, 2012.Torch Lake is a cautionary tale of what happens when,Mar 24, 2016· Of all the Areas of Concern in the Upper Peninsula, it is the Keweenaw's Torch Lake that has suffered the most at the hands of industry and mining. The lake, on which the towns of Lake Linden and Hubbell are situated, was the site of multiple mining operations and copper processing industry all the way through the mid-20th century.Abandoned MIning Wastes Torch Lake Case Study Michigan,Torch Lake, Portage Lake, the Portage Canal, and other water bodies; and, • OU 3 Lake Superior, Michigan Smelter, Quincy Smelter, Calumet Lake, Isle-Royale, Boston Pond, and Point Mills. OU 1 and in part OU 2 are included in the IJC’s Torch Lake Area of Concern. (Continued)

Torch Lake (Alden) 2021 All You Need to Know BEFORE You

Have been coming to torch lake since I was a child and recently visited to celebrate my 40TH birthday.. By far the most beautiful lake in Michigan! The only downside is unless you have or rent a boat it is difficult to experience the lake in full as there are limited areas for access.. would definitely recommend renting a boat and going to theAbout Torch Lake Public Action Council,Torch Lake Area of Concern Torch Lake is located in Houghton County in Michigan's Keweenaw Peninsula. The western shoreline of Torch Lake provided a site for milling facilities for the mines of Calumet and Hecla (C&H) and Quincy mining companies. A total of eight mills operated at different times along the shoreline between 1860 andMichigan judge nullifies crucial permit for mining project,2 days ago· The Toronto-based company’s Back Forty mine primarily would target gold and zinc in an underground sulfide deposit, as well as smaller volumes of copper, silver and lead.

Cleanup of abandoned mining waste in the Keweenaw

Oct 20, 2020· Cleanup of abandoned mining waste in the Keweenaw Peninsula making great progress EGLE’s Abandoned Mine Waste project focuses on mining-era wastes historically discarded in or near Torch Lake Michigan judge nullifies crucial permit for mining project,2 days ago· The Toronto-based company’s Back Forty mine primarily would target gold and zinc in an underground sulfide deposit, as well as smaller volumes of copper, silver and lead.Torch Lake suffers algae outbreak The Mining Journal,CENTRAL LAKE (AP) — A northern Michigan lake that’s famous for its turquoise waters is facing an outbreak of brown algae that’s left its sandy bottom covered with mushy, squishy mats. Rick

Keweenaw mining waste cleanup ‘making great progress

Oct 22, 2020· At Houghton County’s Torch Lake, once the site of multiple mining and ore processing operations, it’s estimated that at least 20 percent of 2,700-acre lake’s volume was eventually filledWHO IS DOING WHAT AT TORCH LAKE? Michigan Sea ,Feb 16, 2019· from past mining activities within Torch Lake under the Great Lakes Water Quality Agreement (GLWQA), signed by the U.S. and Canada. B. Torch Lake Public Advisory Council (PAC) Authorized by and working with the MDEQ and the EPA, the Torch Lake PAC is a group of local citizens and experts involved in improvingSediment Toxicity from Copper in the Torch Lake (MI) Great,Jan 01, 1999· Torch Lake (MI) is a Federal Superfund Site and a Great Lakes Area of Concern. and copper carbonate has a solu- bility of about 250 mg/L. Sulfide precipitates would be stable as well. However, work in the Keweenaw waterway has shown the copper-to-AVS (acid volatile sulfide) ratio is generally greater than 100 meaning that sulfides are not

About Torch Lake Public Action Council

Torch Lake Area of Concern Torch Lake is located in Houghton County in Michigan's Keweenaw Peninsula. The western shoreline of Torch Lake provided a site for milling facilities for the mines of Calumet and Hecla (C&H) and Quincy mining companies. A total of eight mills operated at different times along the shoreline between 1860 andAbandoned MIning Wastes Torch Lake Case Study Michigan,Torch Lake, Portage Lake, the Portage Canal, and other water bodies; and, • OU 3 Lake Superior, Michigan Smelter, Quincy Smelter, Calumet Lake, Isle-Royale, Boston Pond, and Point Mills. OU 1 and in part OU 2 are included in the IJC’s Torch Lake Area of Concern. (Continued)Torch Lake, MI,In the 1930s and 1940s, the Torch Lake mills operated mainly to recover tailings in Torch Lake. In the 1950s, copper mills were still active, but by the late 1960s, copper milling had diminished. Over 5 million tons of native copper was produced from the Keweenaw Peninsula and more than half of this was processed along the shores of Torch Lake.

Torch Lake (Alden) 2021 All You Need to Know BEFORE You

Have been coming to torch lake since I was a child and recently visited to celebrate my 40TH birthday.. By far the most beautiful lake in Michigan! The only downside is unless you have or rent a boat it is difficult to experience the lake in full as there are limited areas for access.. would definitely recommend renting a boat and going to theData and Reports Torch Lake Public Action Council,1992 Drum Removal Report. The 1992 Drum Removal Report provides information about the more than 800 drums thought to contain hazardous substances that are in the western side of Torch Lake in four locations: off the shore of Calumet and Hecla smelting mill in Lake Linden, off shore of the Ahmeek mill site, off shore of the Tamarack site, and off shore of the Quincy site.Mining Boom in Great Lakes States Prompts Environmental,May 24, 2012· Michigan created a new mine regulation law, enacted in 2006, in anticipation of a sulfide mining boom. It was crafted by a group of regulators, environmentalists and industry officials who recognized that sulfide mining could conceivably harm the environment in more ways than iron mining operations did in the past.

Environmental Impacts of Mining in the Keweenaw Keweenaw

Nov 15, 2017· Mining activities continued until 1968 around Torch Lake and shortly afterwards environmental concerns arose over the use of the lake as a dumping grounds. Fish were found with cancerous tumors and high levels of copper, arsenic, mercury and PCBs were found within the lake and the mine tailings.Going Underground MichiganScience No. 9 Mackinac Center,Mar 13, 2009· E.B. Hinson, a New York admirer of Michigan's copper industry, wrote in 1891 that the sheer volume of stamp sand washed into Portage Lake threatened navigation, which led to federal intervention and prompted a shift to disposing stamp sand and slag in Houghton County's Torch Lake.,