An underground plume of water tainted by chromium has moved beyond the containment boundary set up by Pacific Gas & Electric and is approaching the town of Hinkley, Calif., according to the Los Angeles Times.
The small town gained worldwide fame when hundreds of residents wrested a $333 million settlement from PG&E in 1997, a case that inspired the Oscar-winning film “Erin Brockovich.” The lawsuits blamed PG&E for injuries including intestinal tumors and breast cancer, which they said resulted from chromium-laced wastewater seeping from the utility’s disposal ponds into town drinking water wells.
Now the town is threatened again by hexavalent chromium, a heavy metal that can cause breathing problems and lung and intestinal cancer. The substance has been discovered in a lower aquifer that, until recently, PG&E believed was protected from contaminated groundwater above it by a thick layer of clay the company set in 2008.
The Lahontan Regionbal Water Quality Control Board, the state regulatory agency responsible for protecting the area’s water, is investigating PG&E’s handling and reporting of the migrating groundwater plume.
The amoeba-like plume is about 2 1/2 miles long and a mile wide, and is advancing west and northwest at a rate of about a foot a day, officials told the Times.
Some of the hundreds of plaintiffs who were part of the 1997 settlement are exploring their legal options, which could be complicated by settlement agreements they signed. Others, who were not involved in that case, talk of launching another round of litigation.


