Working with
Edward L. Masry, a lawyer based in
Thousand Oaks, California, Brockovich went on to participate in other anti-pollution lawsuits. One suit accused the
Whitman Corporation of chromium contamination in
Willits, California. Another, which listed 1,200
plaintiffs, alleged contamination near PG&E's Kettleman Hills compressor station in
Kings County, California, along the same pipeline as the Hinkley site. The Kettleman suit was settled for $335 million in 2006 . In 2003, after experiencing problems with mold contamination in her own home in the
Conejo Valley, Brockovich received settlements of $430,000 from two parties, and an undisclosed amount from a third party, to settle her lawsuit alleging
toxic mold in her
Agoura Hills, California, home. Brockovich then became a prominent activist and educator in the area as well. Brockovich and Masry filed suit against the
Beverly Hills Unified School District in 2003, in which the district was accused of harming the health and safety of its students by allowing a contractor to operate a
cluster of oil wells on campus. Brockovich and Masry alleged that 300 cancer cases were linked to the oil wells. Subsequent testing and epidemiological investigation failed to corroborate a substantial link, and
Los Angeles County Superior Court Judge Wendell Mortimer granted summary judgment against the plaintiffs. In May 2007, the school district announced that it was to be paid $450,000 as reimbursement for legal expenses. Brockovich assisted in the filing of a lawsuit against Prime Tanning Corp. of
St. Joseph, Missouri, in April 2009. The lawsuit claims that waste sludge from the production of leather, containing high levels of hexavalent chromium, was distributed to farmers in northwest Missouri to use as fertilizer on their fields. It is believed to be a potential cause of an abnormally high number of brain tumors around the town of
Cameron, Missouri. Prior to the lawsuit, the site was investigated by the EPA and at the time, the agency found "no detections of total chromium", and added, "we would like to get any specific information from this law firm as soon as we can so we can evaluate it, and we intend to ask for that directly." The EPA, Missouri Department of Natural Resources, Missouri Department of Health and a state epidemiologist had been investigating what residents believed were a high number of brain tumors in the area — more than 70 since 1996. The epidemiologist had stated the numbers did not seem abnormally high. In June 2009, Brockovich began investigating a case of contaminated water in
Midland, Texas. "Significant amounts" of hexavalent chromium were found in the water of more than 40 homes in the area, some of which have now been fitted with state-monitored filters on their water supply. Brockovich believed
environmental pollution from the
1970 Lehigh Valley Railroad derailment was the cause and conducted testing in the area. Brockovich was supposed to return to LeRoy to present her findings, but never did; in the meantime, the students' doctors determined the cause was
mass psychogenic illness, and that the media exposure was exacerbating the symptoms. No environmental causes were found after repeat testing, and the students improved once the media attention died down. In early 2016, Brockovich became involved in potential litigation against
Southern California Gas for the
Aliso Canyon gas leak, a large
methane leak from its underground storage facility near the community of
Porter Ranch, north of Los Angeles. In April 2016, Brockovich spoke on stage in
Portland, Oregon alongside anti-heavy metals activist
Tamara Rubin about environmental advocacy, and organising to prevent, remove and warn of toxins in the area. She has been interviewed on various news outlets, from independent media to national networks. A few weeks later, Brockovich traveled to
East Palestine, where she was interviewed by local media, and appeared at one of several high-profile town hall meetings on Friday night, Feb. 24th. At the meeting, Brockovich and an attorney highlighted decades of toxic chemical train derailments. Among Brockovich's many concerns is the potential groundwater contamination after chemicals were, as she describes it, dumped in a big hole in the ground and burned off. A recurring theme of her appearances is that the nation has, for decades, in the name of profits over people, failed to undertake infrastructure improvements, enact tighter regulations, and adequately protect the health, safety and welfare of communities from long-term bodily harm and environmental damage. Brockovich continues to cite the Hinkley case and
Flint water crisis, as well as the
2013 Lac-Megantic, Canada oil train catastrophe. In February 2026, Brockovich spoke out against the planned
reefing of the
SS United States in the
Gulf of Mexico, citing the heavy presence of
zinc chromate and
hexavalent chromium on the ship. ==Awards==