Toxic wastewater from oil fields, containing cancer-causing chemicals, continues to spill out of old wells in Oklahoma.
Experts warn of a growing pollution crisis that threatens the state's drinking water.
These highlights were written by the reporters and editors who worked on this story.
In 2020, Danny Ray, a petroleum engineer with over 40 years of experience, was hired to address the issue.
A notable incident occurred in 2019, near the town of Kingfisher, where toxic water poured out of the ground for months, killing crops and trees.
Author's summary: Oklahoma faces a pollution crisis from toxic wastewater.