Source: https://fronterasdesk.org/, October 5, 2020
By: Kendal Blust

Residents of the Sonora River Valley have heard nothing from authorities since they were told last December wells in the area show signs of contamination. Now, they’re renewing calls for access to clean water.

It’s been six years since Grupo Mexico’s Buenavista copper mine spilled millions of gallons of toxic waste into the Rio Sonora. But an analysis of wells in the river valley by Mexican authorities in August 2019 shows 80% percent of the 60 wells tested still have levels of arsenic that exceed safety standards, and about 10% have traces of lead, according to a report from the nonprofit PODER, which obtained the data through a public information request. Read more.