The Tusket River Environmental Protection Association (TREPA) was formed in April 1986 as a result of concern about the pollution entering the Tusket River from the Rio Algom Tin Mine.
During the two weeks after its formation, TREPA met to carry out research and plan strategy. The Department of Fisheries and Oceans charged Rio Algom under Section 33 of the Fisheries Act. Rio Algom sub-divided their 700 acre tailing ponds, the source of the brown water, into three ponds to allow suspended solids to settle out. They also began to treat the effluent with flocculants prior to discharge.
The color of the Tuske River returned to normal and TREPA began research into potential heavy metal contamination of both surface and ground water. TREPA has since outlived the tin mine itself and continues to keep close eye on the reclamation of the Rio Algom site.
Since 1986, TREPA has worked with all levels of government, the public, and other groups to scrutinize environmental laws and to study and address environmental concerns.
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