Revised On: Jan. 2, 2024 - 4:00 p.m.

Registry placement date: Sept. 28, 1998

Score: 69

County: Graham

Location

About 1.5 miles north of the town of Klondyke in Section 6, Township 7 South, Range 20 East with boundaries defined by the extent of soil contamination above the residential soil remediation level (SRL) for lead of 400 milligrams per kilogram (mg/kg). The site boundary is irregular and includes the property containing the tailings piles and several surrounding properties.

If you own a private well, live in or near the site boundaries, and have not had your well tested, please contact ADEQ.

Contaminants of Concern

Arsenic, cadmium, copper, lead, manganese, vanadium and zinc

Action Taken

Early response actions completed at the site include the capping of the upper tailings pile source area (2008), remediation of impacted soils near residences (2010 – 2016), and the remediation of a road constructed of mine tailings (2016). The remedy selected by the Record of Decision, capping of the lower tailings pile (parcel 110-47-003g) and small hillside tailings pile (parcel 110-47-006) source areas, was completed in 2018.

Status

ADEQ has completed the remedy prescribed by the site's the Record of Decision and currently maintains the remedy through annual inspections and maintenance.

Community Advisory Board (CAB)

Dissolved. For more information, view the Community Involvement Plan (CIP) | View/Download CIP >