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Klondyke Tailings Project | Site Overview

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 CIP >