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Orange County residents fear herbicides are poisoning waterways
Residents concerned about the possible poisoning of Orange County waterways with herbicides have been making their voices heard on Instagram and pressured the county into holding a meeting on the issue Monday night.
Their effort has exposed tensions between people who see the waterways as natural creeks and county officials who see them as flood channels.
Brent Linas, a 41-year-old tech sales director in San Juan Capistrano, launched the Creek Team OC Instagram account after seeing changes on his runs along San Juan and Trabuco creeks. Lush green reeds in the channel had suddenly turned brown and lifeless, and birds had disappeared.
Linas said when county officials ignored and brushed aside his complaints, he and others turned to social media.
“We want an end to the use of herbicides in our creeks,” Linas said. “This idea that we’re just going to spray, hose down these creeks and leave them dead is unacceptable.”
Brent Linas walks through foliage along the Trabuco Creek where no herbicide was sprayed.
The account has gained more than 4,600 followers in three weeks. Linas and other residents have filed requests for records detailing the chemicals the county uses to control vegetation in the waterways, such as glyphosate, triclopyr and imazapyr.
They have posted images of workers spraying chemicals and used artificial intelligence to make illustrations resembling movie posters and old-fashioned magazine ads, some with surfers under the slogan “Endless Herbicides.”
San Juan Creek meets the ocean beside the popular surf break at Doheny State Beach. Linas, who often takes his two kids there, said surfers are angry about the spraying and are helping make fliers.
Orange County Public Works officials defend their practices.
“Vegetation management in flood control channels is conducted to maintain flood protection capacity and protect public safety,” Dave Ahern, a spokesperson for the agency, said in an email. “When chemical treatments are used, they are applied in a limited and targeted manner, consistent with applicable regulations.”
The county will hold a town hall in Dana Point on Monday night to provide information and hear from the public.
County Supervisor Katrina Foley said she generally opposes using herbicides in waterways. Her district includes San Juan Capistrano, Dana Point and the flood control channels of San Juan Creek and Trabuco Creek.
Birds rest along San Juan Creek near Doheny State Beach in Dana Point.
“I would like us to use the least toxic alternative possible, wherever possible,” Foley said in an interview. At the same time, she said, the county must keep channels clear of vegetation and at full capacity to protect neighborhoods against flooding.
The county uses only herbicides approved by state water regulators and the federal Environmental Protection Agency, and crews do not spray during bird nesting season or when endangered Southern California steelhead trout may be swimming upstream to spawn, the supervisor said.
Documents obtained by the Creek Team detail chemicals used in 2024 to “eradicate nuisance weeds” in flood control channels, or “washes,” as many Southern Californians know them. They also show the county plans to spray herbicides on more than 2,000 acres in dozens of channels and basins this year, among them the Santa Ana River and Aliso Creek.
The State Water Resources Control Board regulates herbicide use on aquatic plants and grants permits with requirements for using these chemicals.
State records show that in 2024 the county violated rules by submitting data that was “incomplete, inaccurate, or inconsistent.” Orange County Public Works wrote that it was “conducting a thorough review” to ensure compliance.
The state water board allows glyphosate, the key ingredient in the herbicide Roundup, to be used on plants in waterways.
The weedkiller has come under increasing scrutiny as Bayer, Roundup’s maker, has faced thousands of lawsuits alleging it failed to warn people it could cause cancer. (In February, the company announced a proposed $7.25-billion settlement to resolve thousands of suits by cancer patients. President Trump’s recent order to increase domestic production of glyphosate has angered activists who previously supported him.)
Supervisor Foley said she learned the county used Roundup in San Juan Creek about a year ago and made a complaint. She said the county has not used that chemical since January 2025 in the San Juan and Trabuco flood channels.
Brent Linas started a community group called The Creek Team OC to speak out on social media about how the county is using herbicides in creeks.
A record obtained by residents shows that in July, workers sprayed different herbicides in San Juan Creek, including triclopyr and imazapyr. Totaling the gallons listed, Linas calculated they sprayed 8 tons — a figure he has repeatedly used in the campaign with the demand “Stop the Ecocide!”
Foley said it was actually 34 pounds of herbicide “diluted with 8 tons of water,” and that officials are trying to use the “least amount” possible. She is pushing the county to consider alternatives, including perhaps hand weeding or even grazing goats.
“My goal is to try to find every possible way that we can avoid using chemicals,” she said.
However, she doesn’t see the washes as natural creeks.
“The purpose of the channel is not to hold habitat,” she said. “The purpose of the channel is to accommodate water during a flood.”
Linas disagrees. He previously lived for years in San Diego County, where he ran along waterways teeming with birds among reeds, willows and sycamores.
Beachgoers play in the water at the mouth of the San Juan Creek as it flows into the Pacific Ocean.
In a post that garnered more than 17,000 likes, Linas asked: “Why do Orange County’s rivers look like this when San Diego’s rivers look like this?” He showed a barren creekbed filled with cobbles, then a green wetland filled with ducks.
San Diego County “lets rivers be rivers and ecosystems manage themselves,” Linas said. (A spokesperson confirmed that San Diego County Public Works manages vegetation in waterways by hand or using equipment.)
Linas said the spraying is “destroying these vital ecosystems” and posing health threats for people who live nearby. At a minimum, he said, the county needs to notify the public when workers are going to spray.
News
Hollywood Walk of Fame killing: Family demands justice
The family of a Hollywood man is demanding justice after their loved one was attacked by a dog, beaten and then stabbed to death in a wild group attack on the Walk of Fame last week.
Berry Le’Mar Henderson, 37, was attacked by a dog while waiting for a bus near the intersection of Hollywood Boulevard and Las Palmas Avenue around 3:30 p.m. on May 20, according to several of his relatives and a Los Angeles Police Department spokeswoman.
Surveillance video captured at a nearby 7-Eleven and posted online by community activist Najee Ali shows Henderson running across Hollywood Boulevard, while the dog bites at his ankles. A group of men gives chase, according to the video, and one can be seen holding a weapon. The group then surrounds the victim on the other side of the street and can be seen punching and kicking him.
LAPD Officer Norma Eisenman, a department spokeswoman, said the victim suffered multiple stab wounds and was pronounced dead at a hospital a short time later. Police arrested three suspects that day: Bruce Lamont Fuller Jr., Isaul Hernandez and Robert Anthony Garcia, Eisenman said.
Anthony allegedly beat the victim and stuck him repeatedly with a “small bat,” Eisenman said. The dog’s owner, Patrick Randall Perry, was arrested on May 28, according to Eisenman, who said detectives believe Perry stabbed the victim.
A man by the same name was arrested in the same area in 2024 for getting into a fight outside a Church of Scientology building on the Walk of Fame, according to a report by NBC Los Angeles. Police said Perry is 55 years old. The man described in the 2024 news story was 52 at the time.
All four men were arrested on suspicion of murder and are being held in lieu of $2 million, Eisenman said. It was not immediately clear if a case had been presented to the Los Angeles County district attorney’s office.
Barry Henderson was killed in Hollywood on May 20, 2026.
(LaToya Payne)
Henderson, who lived in downtown L.A., was waiting for a bus when the deadly melee began, according to his loved ones.
“My cousin was not the aggressor, my cousin was just here. He was running away. He was down on the ground,” his cousin, Demeya Brewer, said during a vigil held in Hollywood on Friday afternoon, and later published on Facebook.
At least one local activist said he had expressed concern about Perry and his dog before. William Gude, better known online under the handle “Film The Police L.A.,” claimed Perry’s dog had bitten him in the past.
Gude also sent the Los Angeles Police Department video of a man he identified as Perry threatening someone with a collapsible baton in 2024. The man in the video can be seen holding a dog on a leash that looks similar to the one captured in the surveillance footage of Henderson’s killing.
Police officials wrote back to Gude in 2024 that an investigation had been opened. It was not immediately clear what happened to that investigation. Criminal court records do not show recent charges against Perry.
Relatives described Henderson as a happy-go-lucky man who “brought a smile” everywhere he went.
“He was someone who was loved by many family and friends. Anyone who knew Berry loved him. Everyone is just really devastated that it happened to Berry because he is one of those cool dudes. Berry don’t cause trouble,” said his sister, Latoya Payne. “It’s devastating … he was murdered. We just want justice for our brother.”
News
As Trump Mulls Decision About Iran War Deal, a Restive Middle East Waits to Hear
The president has wavered on whether to move ahead with an agreement with Iran to end the war. On Friday, he vowed to make a “final determination” soon.
News
MAVEN Spacecraft Finds New Plasma Squeezing at Mars
A cloaked alien invasion force is approaching Earth and coming up on Mars. The first officer looks through a viewfinder and says, “Captain, the fourth planet’s atmosphere is behaving strangely. As though it were trying to block incoming energy.” The captain takes a moment, then his (already big) eyes get wide and he exclaims, “It’s a defense shield! The Earthlings are hiding on the fourth planet and are prepared to attack us! Abort the invasion!” The first officer responds, “Aye aye, Captain!”
While the tale above is clearly fictionalized (aliens probably don’t say “Aye aye”), it briefly describes a unique atmospheric phenomenon called the Zwan-Wolf effect and occurs when the solar wind interacts with the Earth’s magnetic field, the latter of which shields the Earth from harmful space radiation. But now, a team of researchers have identified the Zwan-Wolf effect occurring on Mars. But, since Mars lacks a magnetic field, the Zwan-Wolf effect was found occurring within the Red Planet’s atmosphere, with scientists discussing these incredible findings in a recent study published in Nature Communications.
For the study, the researchers used NASA’s MAVEN (Mars Atmosphere and Volatile Evolution) spacecraft to analyze data obtained in December 2023 involving the solar wind interacting with the Martian ionosphere. A planet’s ionosphere is the region of the upper atmosphere comprised of positively charged ions and negatively charged electrons that is created from the solar radiation colliding with the planet’s upper atmosphere and breaking apart gas molecules, with their ions and electrons free to roam.
The Zwan-Wolf effect has been observed and studied to occur within Earth’s magnetic field for several years, as the effect causes the magnetic field to squeeze from the solar wind. However, this effect has never been observed on Mars since it lacks a magnetic field. Now, MAVEN successfully observed the Zwan-Wolf effect within the Martian ionosphere when a powerful solar storm struck the Martian atmosphere in December 2023. While the researchers hypothesized that the Zwan-Wolf effect could occur regularly on Mars, these regular occurrences are undetectable with current instruments, but this powerful solar storm produced a Zwan-Wolf effect strong enough for MAVEN to detect it.
“No one expected that this effect could even occur in the atmosphere,” said Dr. Christopher Fowler, who is an assistant researcher professor at the University of West Virginia and lead author of the study. “That’s what makes this even more exciting. It introduces interesting physics that we haven’t yet explored and a new way the Sun and space weather can change the dynamics in the Martian atmosphere.”
Along with using the Zwan-Wolf effect to learn more about the Martian atmosphere and how it interacts with the Sun and solar wind, this study could provide key insights into planets lacking a magnetic field. The only other planet in the solar system with an atmosphere and without a magnetic field is Venus, which lacks plate tectonics that prevents a magnetic field from forming. This prevents heat from circulating within Venus’ interior, also called convection, which is one of two characteristics required to produce a magnetic field. The other characteristic is a liquid iron core, which Venus possesses.
Launched in November 2013 and arriving at Mars in September 2014, the MAVEN spacecraft’s primary mission objective was to ascertain how Mars lost its atmosphere, whether currently or long ago when the atmosphere was much thicker than it is today. While MAVEN went silent for unknown reasons in December 2025, MAVEN confirmed a longstanding hypothesis that the Martian atmosphere was stripped away by the solar wind, resulting in the Red Planet losing its ability to maintain liquid water on its surface.
What new insights into the atmospheric effect on Mars will researchers make in the coming years and decades? Only time will tell, and this is why we science!
As always, keep doing science & keep looking up!
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