Eugene Mine

Location: 

The Eugene Mine is a former gold mine and mill site located within the Big Bug Watershed in the Bradshaw Mountains of the Prescott National Forest, Yavapai County. It is located approximately 3.3 miles west of Highway 69 at Poland Junction and 1.3 miles west on Eugene Gulch Road.

Date Discovered:

March 9, 2010

Impaired Surface Waterbody:

Eugene Gulch, Big Bug Creek

Surface Water Quality Exceedances for Designated Uses:

• Copper (aquatic and wildlife, warmwater)

Affected Media:

• Surface Water

What Are My Health Risks?

For Surface Water | Surface water quality standards are established to provide protection for a waterbody’s designated use(s) | Learn more >

ADEQ and AZGFD jointly publish fish consumption advisories | Learn more >

For Mining Adits/Shafts | If you encounter a mining adit or shaft, do not enter it. The Arizona State Mine Inspector conducts inspections of legacy mines and implements safety measures | Learn more >

Site Summary:

• Mining activities ceased on the early 1900s
• USFS Preliminary Assessment/Site Investigation in 2004
• ADEQ initiated surface water quality sampling in 2013
• 2016: USFS Removal Site Investigation
• 2017: USFS Engineering Evaluation and Cost Analysis
• 2020: USFS and ADEQ enter into Participating Agreement
• 2021: Preliminary Remedial Design
• March 2022: Remediation completed by ADEQ, USFS, and Tetra Tech
• ADEQ will conduct effectiveness monitoring to determine success of remediation