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Arizona Department Of Environmental Quality

Upchurch, other federal officials answer questions on the Rosemont Mine

Last Monday, Coronado National Forest Supervisor Jim Upchurch answered questions at a news conference about the Rosemont Mine.

December 22, 2013 12:00 amLoading…

Forest Service will allow Rosemont, but mine is still not a sure thing

The U.S. Forest Service will issue a draft decision today approving the proposed Rosemont Mine in the Santa Rita Mountains southeast of Tucson.

December 13, 2013 12:00 amLoading…
Rosemont meets almost all environmental laws, final federal report says

Rosemont meets almost all environmental laws, final federal report says

The Forest Service laid much of the groundwork Friday for approval of the Rosemont Mine by releasing a final environmental report saying essentially that while the mine will cause negative impacts, it’s now clearly in line with nearly all environmental laws.

November 30, 2013 12:00 amLoading…
Rick Grinnell: Consider all the facts before taking a position on the Rosemont mine

Rick Grinnell: Consider all the facts before taking a position on the Rosemont mine

Whether you are in favor of Rosemont Copper or opposed, your decision ought to be based on the most current facts.

November 06, 2013 12:00 amLoading…

BLM challenges view of mine's impact on streams

The U.S. Bureau of Land Management is intensifying the debate over the proposed Rosemont Mine’s impacts on neighboring streams by bluntly challenging the Forest Service view that the mine probably won’t do major, short-term environmental damage to Cienega Creek.

September 10, 2013 12:00 amLoading…

State board sued for upholding Rosemont water permit

Opponents of the proposed Rosemont Mine have filed suit, seeking to overturn a state decision awarding a groundwater protection permit to mine owners Rosemont Copper Co.

August 21, 2013 12:00 amLoading…
Rosemont Mine's groundwater permit upheld in latest challenge

Rosemont Mine's groundwater permit upheld in latest challenge

Opponents of the proposed Rosemont Mine are 0 for 3 in trying to stop the state from issuing the mine a groundwater-protection permit.

July 10, 2013 12:00 amLoading…

Appeal: Air-quality OK for mine flawed

Rosemont Mine opponents claim in an appeal that Arizona's environmental agency approved an air quality permit for an outdated mine plan and overlooked the likelihood of air quality violations.

March 13, 2013 12:00 amLoading…

Rosemont gets key air permit from state

Rosemont Copper now has one of the most hotly contested permits - although not the last needed - for it to operate a mine southeast of Tucson.

February 01, 2013 12:00 amLoading…

Asarco unit to pay $110K to settle mine spill charges

An Asarco mining operation has agreed to pay a $60,000 fine and take preventive steps valued at $50,000 to resolve water quality violations caused by a June 2010 pipeline spill at the Silver Bell Copper Mine near Marana, the Arizona Department of Environmental Quality announced today.

January 29, 2013 1:32 pmLoading…
Just add water: AZ pushes for 'bioreactor landfills'

Just add water: AZ pushes for 'bioreactor landfills'

Chad Hancock, a technician with Engineering and Environmental Consultants Inc., uses a device to monitor the amount, concentration, temperature and percentage of methane gases from a well at the Los Reales Landfill. Wells are connected to vertical perforated piping that runs throughout the l…

December 29, 2012 12:00 amLoading…
Just add water: AZ pushes for 'bioreactor landfills'

Just add water: AZ pushes for 'bioreactor landfills'

The Arizona Department of Environmental Quality is seeking federal permits to convert landfills like Los Reales to bioreactors. The addition of water to the landfill is expected to accelerate the rate of waste degradation, creating more methane.

December 29, 2012 12:00 amLoading…
Just add water: AZ pushes for 'bioreactor landfills'

Just add water: AZ pushes for 'bioreactor landfills'

This is the existing methane-capture system and part of the Los Reales Landfill gas-to-energy project. Bioreactor opponents are worried about additional water use and the threat of groundwater contamination.

December 29, 2012 12:00 amLoading…
Just add water: AZ pushes for 'bioreactor landfills'

Just add water: AZ pushes for 'bioreactor landfills'

More liquids - and, critics fear, some illegal hazardous wastes - could be coming to Arizona's 39 garbage landfills if a new technology for treating landfill liquids wins federal approval.

December 29, 2012 12:00 am Photos

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Enviros: Put TEP plant under haze rule

Environmental groups want federal regulators to place a partly coal-fired power plant in Tucson under regional regulations designed to curb regional haze.

October 14, 2012 12:00 amLoading…

Enviro groups go after Tucson's partly coal-fired power plant

Environmental groups want federal regulators to place a partly coal-fired power plant in Tucson under regional regulations designed to curb regional haze.

October 13, 2012 1:01 pmLoading…

ADEQ head to EPA: Let state 'figure out' air quality issues

PHOENIX - The Environmental Protection Agency and Arizona have a common goal of following the Clean Air Act, but federal officials should recognize the "unique environment" here as they evaluate plans, a state official contends.

September 17, 2012 12:00 amLoading…

Ariz. proposes issuing air permit for Rosemont Mine

State regulators are taking over the Rosemont Mine air quality permit from Pima County, the Arizona Department of Environmental Quality announced today.

August 03, 2012 1:11 pmLoading…

Marana loses latest bid to control sewer plant

The Arizona Court of Appeals rejected Marana's motion to reconsider an earlier decision that the town does not have the legal authority to own or operate the sewer plant it seized from Pima County.

August 03, 2012 12:00 amLoading…

Court OKs settlement over hazardous waste at AZ mine

U.S. District Court for Arizona has approved a $6.8 million settlement that Phoenix-based Freeport McMoRan will pay over the past release of hazardous substances from the Morenci mine.

July 03, 2012 2:02 pmLoading…

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