Four months after Peru's worst toxic spill of mining waste, workers at the Caudalosa mine are demanding that it be reopened, while local communities want more cleanup of the rivers they depend on for water supplies...The Jun. 25 collapse of a tailings dam caused the spill of 25,000 cubic metres of toxic waste...Mine workers and their families demonstrated…calling for the reopening of the mine..."If we can't work, what are we supposed to live on?"...the only source of water in Santa Rosa is the Urubamba river, polluted by the spill...[P]rosecutor Ponce...on Oct. 25 filed a criminal lawsuit for environmental pollution against the general manager of the company, Alberto Pescetto...A report by the National Water Authority found that five out of 11 sites sampled…still had high concentrations of toxic pollutants...Caudalosa claims it has finished cleaning up the rivers, but the environmental authorities consider the work...inadequate...