U.S. DEPARTMENT OF THE INTERIOR  BUREAU OF LAND MANAGEMENT  
ePlanning DOI-BLM-AZ-C010-2019-0032-OTHER_NEPA (COD Mine and Mill Site Remediation Project)  
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Last Updated:
08/16/2019 10:18:56 MDT
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The BLM will hold an open house meeting to present the Draft Final Engineering Evaluation/Cost Analysis
to determine the best methods for remediating the contamination at the COD Mine and Mill-site
(this report can be found on the "Documents" page, refer to left navigation pane).

August 23, 2019
1:00 - 4:00 p.m.

Mohave Community College, Kingman Campus
1971 Jagerson Avenue
Kingman, Arizona
 
 
 
Project Description:
The mine opened in 1878 and produced silver, lead, zinc and gold intermittently until it permanently closed in 1984. Lead, arsenic and thallium have been found in tailings, waste rock dumps, surrounding soils and drainage in levels that exceed the Arizona Department of Environmental Quality Nonresidential Soil Remediation Levels. In 2017, BLM contracted Terranext, an environmental engineering firm from Phoenix, Ariz., to characterize the contamination at the site. Terranext has completed a Draft Final Engineering Evaluation/Cost Analysis (EE/CA) to determine the best way to remediate the contamination at the COD Mine and Mill-site.

 

Project Location:
The COD Mine Site is situated entirely on BLM – administered public land in the Cerbat Mountains approximately 10 miles north of Kingman at an elevation of about 4,900 feet (Figure 1, page 68 in the report). The COD Mine is located in portions of Section 28, Township 23 North, Range 17 West, of the Gila and Salt River Base and Meridian. The geographical coordinates are approximately 35°20' 45.63" north latitude and 114° 6' 20.13" west longitude. The area of concern for the EE/CA encompasses the COD Mine Site and an ephemeral wash, which flows through the northern side of the COD Mine Site, and continues to the east-southeast about one mile before opening onto an alluvial fan.