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Iron Mountain: An Extraordinary and Extreme Environment

2021-9-3  The Iron Mountain Mine Superfund Site near Redding, California, is a massive sulfide ore deposit that was mined for iron, silver, gold, copper, zinc, and pyrite intermittently for nearly 100 years. As a result, both water and air reached the sulfide deposits deep within the mountain, producing acid mine drainage consisting of sulfuric acid and

Remediating Some of the World's Most Acidic Waters at

Iron Mountain has been a Superfund site since 1983, and is home of the world's most acidic water (negative 3.6 pH). In a word, remediating the extensive mines in a mountain of rock with almost no acid neutralization capacity is daunting.

SIXTH FIVE-YEAR REVIEW REPORT FOR IRON MOUNTAIN

2021-9-1  IRON MOUNTAIN MINE SUPERFUND SITE SHASTA COUNTY, CALIFORNIA PREPARED BY United States Army Corps of Engineers, Seattle District FOR U.S. Environmental Protection Agency Region IX Ap~p _ oved by: tJa,r-1-w, /2. Date ( I '] -z_,,1 I ¥ Da Barton A ssistant Division C

Superfund Record of Decision: Iron Mountain Mine, CA

The District encompasses over a dozen sulfide mines that have been worked for silver, gold, copper, zinc, and pyrite. 1.2 Site Location The Iron Mountain Mine Superfund site is defined pursuant to the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) to include the inactive mines on Iron Mountain and areas where

Iron Mountain Mine Superfund Site and the Shasta

2018-8-31  Iron Mountain Mine Superfund Site and the Shasta Mining District August 2016 ASTSWMO Brownfields and Superfund Symposium. Agenda •Mining history, environmental impacts •NPL listing and remediation Past •Site operation •Optimizing treatment Present •Final Record of Decision

Superfund Record of Decision: Iron Mountain Mine,

EPA Superfund Record of Decision: PB97-964510 EPA/541/R-97/132 January 1998 Iron Mountain Mine Redding, CA 9/30/1997. -------f RECORD OF DECISION IRON MOUNTAIN MINE SHASTA COUNTY, CALIFORNIA THE DECLARATION I, SITE NAME AND LOCATION Iron Mountain Mine (IMM) Shasta County, California (approximately 9 miles northwest of Redding, California) II.

Iron Mountain Mine Superfund Site Long Term O&M

2015-3-20  Iron Mountain Mine Superfund Site Long Term O&M Challenges August 12-14, 2014 James Sickles, U.S. EPA Region 9 National Conference on Mining-Influenced Waters: Approaches for Characterization, Source Control and Treatment Albuquerque, New Mexico

Iron Mountain Mine Montana Environmental Trust Group

After decades of silver, gold, lead, copper, and zinc mining, the now-abandoned mining district includes tunnels, tailings, a discharging adit, and mill remnants. Evidence of Iron Mountain mine tailings have been found along the Flat Creek River and downstream as far as its confluence with the Clark Fork River.

Superfund Sites in Reuse in Montana US EPA

2021-9-11  The Flat Creek IMM Superfund site is located in Superior, Montana. From 1909 to 1930 and from 1947 to 1953, the Iron Mountain Mine (IMM) operated on site. IMM produced silver, gold, lead, copper and zinc ores. Mine operations produced tailings and soils contaminated with heavy metals.

IRON MOUNTAIN MINE United States Environmental

2021-4-5  Iron Mountain Mines James A. Robertson CA RWQCB CV Paper: Hydrogeochemical and Microbiological Factors Affec-ting the Heavy Metal Chemistry of an Acid Mine Drainage Sys. Order No. 77-225 Establishing Water Discharge Reqs. for Iron Montain Mines, Inc. Shasta County Letter Notifying Compliance w/Clean Up i Abatement Order No. 77-225 Iron Mountain

SIXTH FIVE-YEAR REVIEW REPORT FOR IRON MOUNTAIN

2021-9-1  IRON MOUNTAIN MINE SUPERFUND SITE SHASTA COUNTY, CALIFORNIA PREPARED BY United States Army Corps of Engineers, Seattle District FOR U.S. Environmental Protection Agency Region IX Ap~p _ oved by: tJa,r-1-w, /2. Date ( I '] -z_,,1 I ¥ Da Barton A ssistant Division C

Superfund Record of Decision (EPA Region 9): Iron

1998-1-1  Superfund Record of Decision (EPA Region 9): Iron Mountain Mine, Redding, CA, September 30, 1997. Full Record; Other Related Research; for control of releases of hazardous substances from widespread area sources in the Slickrock Creek watershed at the Iron Mountain Mine Site. This interim action addresses the most significant source of

Iron Mountain Mine Superfund Site and the Shasta

2018-8-31  Iron Mountain Mine Superfund Site and the Shasta Mining District August 2016 ASTSWMO Brownfields and Superfund Symposium. Agenda •Mining history, environmental impacts •NPL listing and remediation Past •Site operation •Optimizing treatment Present •Final Record of Decision

Iron Mountain Mine Superfund Site Long Term O&M

2015-3-20  Iron Mountain Mine Superfund Site Long Term O&M Challenges August 12-14, 2014 James Sickles, U.S. EPA Region 9 National Conference on Mining-Influenced Waters: Approaches for Characterization, Source Control and Treatment Albuquerque, New Mexico

Restoring Resources Damaged by the Iron Mountain Mine

2017-11-9  The tale of restoring resources damaged by turn of the century mining practices is never a short one. In the case of the Iron Mountain Mine (IMM) Superfund Site, and the Natural Resources Damage Assessment (NRDA) process that informed the case, settlement and

Raman Spectroscopy of Efflorescent Sulfate Salts from

2015-8-24  The Iron Mountain Mine Superfund Site near Redding, California, is a massive sulfide ore deposit that was mined for iron, silver, gold, copper, zinc, and pyrite intermittently for nearly 100 years. As a result, both water and air reached the sulfide deposits deep within the mountain, producing acid mine

Iron Mountain Mine Montana Environmental Trust Group

After decades of silver, gold, lead, copper, and zinc mining, the now-abandoned mining district includes tunnels, tailings, a discharging adit, and mill remnants. Evidence of Iron Mountain mine tailings have been found along the Flat Creek River and downstream as far as its confluence with the Clark Fork River.

Mining Waste Treatment Technology Selection—Case

2021-4-30  Site Name: Iron Mountain Mine. Location: Nine miles northwest of the City of Redding in Shasta County, California. Longitude 122.50149, latitude 40.67868. Figure 1-1. General site location maps. From the 1860s through 1963, the 4,400-acre Iron Mountain Mine (IMM) site was periodically mined for iron, silver, gold, copper, zinc, and pyrite.

Abandoned Mine Lands: Technical Resources US EPA

2021-7-29  The Abandoned Mine Lands Team Reference Notebook illustrates the extent of abandoned mine lands contamination problems across the U.S. and the actions that EPA's is taking in addressing this problem. While this document provides assistance to EPA staff in better coordinating their AML functions, it is a technical resource, not EPA guidance.

Iron Mountain: The History and Complications in Metal

2020-4-28  Iron Mountain over the course of operations and the mine was the top producer of copper in California, sixth in the country and tenth in the world. There were several different individual mines that made up the Iron Mountain Mine operation. The Old Mine, No. 8 Mine, Confidence-

Iron Mountain Mine Superfund Site Long Term O&M

2015-3-20  Iron Mountain Mine Superfund Site Long Term O&M Challenges August 12-14, 2014 James Sickles, U.S. EPA Region 9 National Conference on Mining-Influenced Waters: Approaches for Characterization, Source Control and Treatment Albuquerque, New Mexico

Restoring Resources Damaged by the Iron Mountain Mine

2017-11-9  The tale of restoring resources damaged by turn of the century mining practices is never a short one. In the case of the Iron Mountain Mine (IMM) Superfund Site, and the Natural Resources Damage Assessment (NRDA) process that informed the case, settlement and

Raman Spectroscopy of Efflorescent Sulfate Salts from

2015-8-24  The Iron Mountain Mine Superfund Site near Redding, California, is a massive sulfide ore deposit that was mined for iron, silver, gold, copper, zinc, and pyrite intermittently for nearly 100 years. As a result, both water and air reached the sulfide deposits deep within the mountain, producing acid mine

10/19/2000: U.S., CALIFORNIA ANNOUNCE LONG-TERM

2016-12-16  The EPA listed Iron Mountain Mine as a federal Superfund site in 1983. The heart of the U.S. EPA's and the state's strategy to deal with acid mine drainage involved building a treatment plant in 1994 that removes 99.99 percent of metals from the polluted water sent the plant.

Iron Mountain Mine The EPA Blog

Most recently I worked on the Iron Mountain Mine, where our office was overseeing the dredging of contaminated sediments from Spring Creek which flows into the Keswick Reservoir and is the source of drinking water for the City of Redding, a city of around 80,000 people.

Raman spectroscopy of efflorescent sulfate salts from Iron

The Iron Mountain Mine Superfund Site near Redding, California, is a massive sulfide ore deposit that was mined for iron, silver, gold, copper, zinc, and pyrite intermittently for nearly 100 years. As a result, both water and air reached the sulfide deposits deep within the mountain, producing acid mine drainage consisting of sulfuric acid and heavy metals from the ore.

Iron Mountain Mine Dredge Monitoring NexSens

Sediment in the Spring Creek Arm of the Keswick Reservoir in California previously contained high concentrations of copper and zinc, the source of which was contaminated runoff from the Iron Mountain Mine Superfund Site.. In order to protect the downstream Sacramento River

(PDF) Negative pH, Efflorescent Mineralogy, and

The Richmond Mine of the Iron Mountain copper deposit contains some of the most acid mine waters ever reported. Values of pH have been measured as low as -3.6, combined metal concentrations as

Acid mine drainage biogeochemistry at Iron Mountain

2017-8-29  Iron Mountain is located approximately 9 miles north-west of the city of Redding, California ~Fig. 1!. Access to the Richmond Mine is provided by a 430 m long horizontal ac-cess tunnel that is maintained as part of the United States Government Superfund program remediation effort. The area of the 5-way is located at the edge of the main body of the

Iron Mountain: The History and Complications in Metal

2020-4-28  Iron Mountain over the course of operations and the mine was the top producer of copper in California, sixth in the country and tenth in the world. There were several different individual mines that made up the Iron Mountain Mine operation. The Old Mine, No. 8 Mine, Confidence-