HINKLEY, Calif. – At the end of “Erin Brockovich,” a housewife sick from toxic chromium weeps with joy as she’s handed her portion of a historic $333 million settlement between residents of this small desert town and the utility that poisoned their drinking water.

In real life, that woman is Roberta Walker. She still lives in Hinkley, using her share to buy a new home in what she thought would be a safe four-mile distance from the toxic plume of chromium.

Additional Photos

Roberta Walker draws bottled water at her home in Hinkley, Calif., a small community whose struggles with contaminated groundwater inspired the movie “Erin Brockovich.” The pollution has again seeped into the area’s groundwater. The Associated Press

Earlier this year, she and other residents learned that the pollution, which Pacific Gas & Electric was required to clean up, was once again moving and had seeped into their groundwater.

Now, Brockovich has returned to the town that made her famous and is once again rallying residents and sampling the water. At a water board meeting on Wednesday, her associate is expected to announce that the contamination may be worse than the utility says.

For Walker and others involved in the original case, these developments are like stepping back in time.

“We didn’t bring a giant to its knees, all we did was wake it up,” Walker said.

Walker was instrumental in developing the original case that was filed in 1993. The housewife and mother of two grew suspicious after PG&E repeatedly offered to buy her house and agreed to bring her so much bottled water that she filled her pool with it.

Walker brought documentation of cancer-causing chromium contamination in her groundwater to a law firm, which passed the file to Brockovich. The two eventually worked on the case together, becoming close friends in the process.

While many of the more than 600 original Hinkley litigants moved away after the 1996 settlement, Walker stayed. She preferred the remote desert landscape to a city skyline.

Now, Walker and Brockovich are struggling to understand how this could be happening all over again.

“When I first met Roberta back in 1991 and 1992, she said PG&E is buying property, handing out bottled water and my horse just died,” she said. “This year she called and said they’re buying property, handing out bottled water and my horse just died.

“Eerie doesn’t describe it,” she said. “It was out of body – it was like the 20 years never happened.”

In 2008, the plume of chromium began spreading. Despite efforts by PG&E to stem the problem, tests this year showed it was growing again. According to the utility and water board, the plume is two miles long and a mile wide.

The reported chromium levels are low enough not to violate drinking water standards but residents remain concerned.

Since January, Brockovich has been testing the water with Bob Bowcock of Integrated Resource Management.

They have taken as many as 180 water samples. Bowcock, the former utility director for several Los Angeles suburbs, said the tests reveal the contaminated area is twice as big as the utility’s estimates.

Bowcock is expected to share some of these details at the Lahontan Regional Water Quality Control Board meeting.

At the meeting, Hinkley residents will get an update on PG&E’s cleanup effort. Lauri Kemper, the board’s assistant executive officer, said they have asked to see the data, lab results and sampling procedures.

One troubling discovery, Bowcock said, is that there is contamination well beyond the original plume boundaries.

He has a theory: Decades earlier, when pumping at nearby farms caused some residents’ well levels to fall, that water was unknowingly replaced with thousands of gallons of chromium-laced water.

Bowcock said they have found much higher pollution levels than expected. Some areas, he said, are showing levels that are 400 times higher than the recommended public health goal.

While the utility believes the contamination is affecting an estimated 100 households, he believes the number is closer to 250.

PG&E said it has not seen Bowcock’s water testing results but remained committed to working with the community and the water district. The utility has been sending residents bottled water and has expressed interest in potentially buying affected homes.

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