2008
Record of Decision Issued
What to know:
In 2008, Captain Jack Mill Superfund site completed a final Record of Decision (ROD). The ROD is a pivotal point in the Superfund Remediation Process, as it defines the approach that will be used to clean up the site and the monitoring indicators that demonstrate cleanup performance and completion. The Remedial Action Objectives (RAOs) for this work was to reduce all sources of contamination: surface waste rock and tailings, surface water (water coming from the mine and draining into the creek), and ground water (water interacting with contaminated waste across the landscape). To achieve these goals, the ROD had two remedy components: surface remedy of waste rock, tailings and soils, and subsurface remedy to treat acid mine drainage from inside the Big Five Tunnel. Click here to view the ROD document.
Timeline of the Superfund Remedial Process. By 2003, Captain Jack Mill’s Assessment phase was completed, resulting in an NPL listing.
Source: EPA.
For A Community Guide to EPA’s Superfund Program click Here.
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1861
Mining Begins in the Ward District
Mining activity began in 1861 following the discovery of gold... -
Late 1800s
Water Quality Issues Reported
Water quality issues were likely occurring since mining began in... -
1896
Captain Jack Mill Construction
Approximately 12 mines were operated in the headwaters area of... -
1992
Captain Jack Mine Closure
After nearly a century of activity under multiple owners at... -
2003
EPA Superfund Designation of Captain Jack
By 2003, Captain Jack Mill was listed on the EPA’s... -
2008
Record of Decision Issued
In 2008, Captain Jack Mill Superfund site completed a final... -
2013
Surface Remediation Completed
The surface remediation occurred from 2011 to 2013. This work... -
2015
Sub-Surface Remediation Began
The Subsurface Remediation began in late 2015. This work aims... -
2018
Emergency Release and Fish Kill Occurred
In October 2018, Left Hand Creek landowners reported a fish... -
2020
Sub-Surface Remediation Continued
After the emergency release and resulting fish kill, the sub-surface... - Future