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Site Report: Beatson Mine

Site Name: Beatson Mine
Address: NW Shore of Latouche Island; ~3.8 Miles ESE of Chenega Bay, Chenega Bay, AK 99574
File Number: 2264.38.038
Hazard ID: 26264
Status: Active
Staff: Anne Marie Palmieri, 9077663184
Latitude: 60.049571
Longitude: -147.904137
Horizontal Datum:WGS84

We make every effort to ensure the data presented here is accurate based on the best available information currently on file with DEC. It is therefore subject to change as new information becomes available. We recommend contacting the assigned project staff prior to making decisions based on this information.


The Beatson Mine was a large copper mine which operated from 1904-1930. Total copper production from the mine is reported as 182 million pounds. A large volume of copper tailings are present in the uplands and marine inter-tidal area. Acid mine drainage is visually apparent and flowing into the marine surface water; the measure pH ranged from 3.1-4.2. USGS collected samples of the marine sediment and biota and metals concentrations at the site were higher than at other mines. In 2013, composite surface soil samples showed elevated concentrations of metals, including copper up to 13,300 mg/kg and lead up to 1,310 mg/kg.

Action Information

Action Date Action Description DEC Staff
8/14/2014 Site Added to Database A new site has been added to the database Mitzi Read
8/15/2014 Exposure Tracking Model Ranking Initial ranking with ETM completed for source area id: 79655 name: Beatson Mine Mitzi Read
10/20/2014 Potentially Responsible Party/State Interest Letter PRP letters sent out this date. Anne Marie Palmieri
12/18/2014 Potentially Responsible Party/State Interest Letter A PRP letter was sent out this date to Minaska, Inc. Anne Marie Palmieri
6/3/2015 Update or Other Action A request for site characterization was sent to Rio Tinto on this date. A joint site visit is planned for August 2015. Anne Marie Palmieri
8/6/2015 Site Visit CS and Dept of Law staff conducted a site visit with Rio Tinto. Anne Marie Palmieri
8/19/2015 Update or Other Action Staff approved a Rio Tinto request for an extension for submittal of a site characterization work plan. The new submittal deadline is 12/31/15. Anne Marie Palmieri
1/12/2016 Report or Workplan Review - Other DEC provided comments on the draft site characterization work plan to Rio Tinto on this date. The draft work plan was received on 12/29/15. Anne Marie Palmieri
2/17/2016 Update or Other Action DEC agreed with Rio Tinto's responses to our comments on the draft work plan on this date. Anne Marie Palmieri
3/31/2016 Meeting or Teleconference Held DEC and Dept. of Law staff met with Rio Tinto to discuss the large number people who have been found to own property at the site. Anne Marie Palmieri
5/12/2016 Meeting or Teleconference Held DEC mailed PRP letters to the approximately 120 property owners in the LaTouche Subdivision. An open house was held in Anchorage on this date for property owners to answer any questions. Anne Marie Palmieri
7/7/2016 Report or Workplan Review - Other DEC provided additional review comments on the draft-final work plan to Rio Tinto. Field work is planned to begin on August 8, 2016. Anne Marie Palmieri
7/29/2016 Site Characterization Workplan Approved The site characterization work plan (dated 7/28/16) was approved this date. Anne Marie Palmieri

Contaminant Information

Name Level Description Media Comments

Control Type

Type Details


Description Details

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