RE:Is there arsenic in the tailings?Likely along with other elements which are in both solid and dissolved form. That is why both acidic and bulk tailings' require containment including process water per regulation.
In addition to acidic tailings requiring a liner, the bulk tailings will require a liner. Groundwater pump-back wells will be required since all liners do leak, in particular synthetic liners.
Water treatment and discharge meeting aquatic standards in perpetuity.
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