Metal loading into Upper Animas River remains a mystery

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Metal loading into Upper Animas River remains a mystery

Recently released sampling data prove incomplete
Sunnyside Gold Corp.’s four massive tailings piles along the Upper Animas River are about a mile northeast of Silverton and south of the old Mayflower Mill. The sources of metal loading in the Upper Animas remains a mystery for researchers, yet these piles of mine waste have long been held under suspicion.
Silverton native Larry Perino, a spokesman for Sunnyside, revealed the results of sampling conducted last year on the Sunnyside Gold Corp.’s four massive tailings ponds along the Upper Animas River, located about a mile northeast of Silverton. Sampling was conducted during high-flow and low-flow points. Results showed eight metals in the tailings and two metals in the Animas River exceed state standards, mainly cadmium and copper.
Tailings outside the town of Silverton are suspected to be responsible for heavy-metal loading in the Animas River. The site is included in the Environmental Protection Agency’s proposed Superfund listing, though remediation efforts remain unknown.

Metal loading into Upper Animas River remains a mystery

Sunnyside Gold Corp.’s four massive tailings piles along the Upper Animas River are about a mile northeast of Silverton and south of the old Mayflower Mill. The sources of metal loading in the Upper Animas remains a mystery for researchers, yet these piles of mine waste have long been held under suspicion.
Silverton native Larry Perino, a spokesman for Sunnyside, revealed the results of sampling conducted last year on the Sunnyside Gold Corp.’s four massive tailings ponds along the Upper Animas River, located about a mile northeast of Silverton. Sampling was conducted during high-flow and low-flow points. Results showed eight metals in the tailings and two metals in the Animas River exceed state standards, mainly cadmium and copper.
Tailings outside the town of Silverton are suspected to be responsible for heavy-metal loading in the Animas River. The site is included in the Environmental Protection Agency’s proposed Superfund listing, though remediation efforts remain unknown.
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