| Form Letter/Submission | Comment# | Description | AfileName | CommentText | Attachment |
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Form Letter-25
| 5 | Air Quality | | Sitting out watching the stars will not be the same with dust pollution that will seriously compromise the experience. |
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Form Letter-21
| 5 | Air Quality | | What will the cumulative impacts be from this mine and the other proposed mining operations in the vicinity on air quality |
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Form Letter-18
| 10 | Air Quality | | Air pollution would be much affected by dust. Considerations for health and factors affecting astronomy would be impacted. |
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Form Letter-17
| 17 | Air Quality | | COMMENT 2: AIR, NOISE, TRAFFIC, AND LIGHT POLLUTION BY THE MINE ARE CERTAIN. |
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Form Letter-17
| 27 | Air Quality | | Tons of dust released into the atmosphere by blasting at the Mine combined with Mine operations 24 hours per day, seven days per week, for 19 years will cause severe light pollution in traditionally astronomy-friendly Pima and Santa Cruz Counties. |
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Form Letter-17
| 36 | Air Quality | | COMMENT 2B: THE MINE WILL RELEASE TO THE AIR UNACCEPTABLE AMOUNTS OF DUST, HYDROCARBONS, AND OTHER TOXIC CHEMICALS. |
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Form Letter-17
| 37 | Air Quality | | Discussion: Augusta plans to blast and dig a mine pit that will be 6,500 feet long, 6,000 feet wide, and as much as 2,900 feet deep. Blasting will be done by exploding 20,000 tons of ammonium nitrate per year or 380-thousand tons over the Mine's lifetime. Such blasting and digging will release tons of dust into the atmosphere. Augusta plans to remove from the Mine's pit some 600-million tons of below-average-grade copper-bearing ore and up to 1.9-billion tons of waste rock over the Mine's lifetime. 513-million tons of ore will be milled on-site yielding over 500-million tons of tailings materials. The waste rock and tailings materials will be transported by haul trucks for permanent on-site storage in Barrel and other local canyons covering nearly 3,000 acres. The combined effects on these waste materials of exposure to strong sun light, extremely low relative humidity, and persistently moderate winds in the Rosemont area over a majority of months per year, will release tons of dust into the region's atmosphere. |
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Form Letter-17
| 38 | Air Quality | | Digging and hauling will be done 24 hours a day, seven days a week, by heavy machinery burning and converting to tail-pipe emissions 9-million gallons of diesel fuel per year or 171-million gallons over the Mine's lifetime. In addition to this, the 150 trucks and employee pool vans arriving at end departing the Mine daily will further increase the hydrocarbon emissions attributable to the Mine's operation. |
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Form Letter-17
| 39 | Air Quality | | Mitigation: In the event of failure to comply with all applicable air quality standars, Augusta must be compelled to cease operations and pay all expenses for remediation. Require that mitigation measures be subjected to greater scientific rigor; that predictions of impacts be based in part on performance in past predictions and experiences at other mines. Require that mitigation measures be designed by persons with the requisite technical expertise and experience, and that all proposed mitigation measures be subjected to independent review and determination of the risk of failure and the likelihood of success. |
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Form Letter-17
| 97 | Air Quality | | Despite the best intentions and newest technologies, large open pit copper mines can and do cause air pollution. |
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