Newport Beach Bans Synthetic Herbicides on 17 Athletic Fields Citywide

Newport Beach has stopped using synthetic herbicides on all 17 of its city-maintained athletic fields, opting instead for organic treatments, mechanical weed removal and a periodic sod replacement cycle across roughly 1.9 million square feet of turf. The Newport Beach City Council approved the new Athletic Field Sod Management Program, which requires fields to be stripped, leveled and covered with new sod approximately every three to five years based on field condition and use, with the sod schedule designed to address the weeds and turf deterioration caused by heavy foot traffic.

City officials announced the herbicide policy and athletic field program, according to the Los Angeles Times, which reported that the city will now rely on organic treatments, mechanical weed removal and periodic grass replacement to keep fields safe and playable. The decision arrives after residents pressed the city to change course. During a July 29 city council meeting, residents presented public records showing Newport Beach had executed 1,753 pesticide and herbicide applications compared to just one organic application over the preceding year, according to Citizen Portal, with residents urging officials to strictly enforce an organics-first management standard.

A Pilot Project Proved the Concept

The city's approach was tested first at Buffalo Hills Park, where a pilot project launched in December 2025 removed the existing turf, leveled the playing surface and installed overseeded hybrid Bermuda sod. City Manager Seimone Jurjis told the community ahead of the council vote that the Buffalo Hills field was then maintained using mechanical weed removal and organic treatments without synthetic chemicals, per Stu News Newport. That single-field trial became the model city staff used to justify scaling the program across all 17 athletic fields.

Turf researchers have long noted why coastal Orange County fields are especially prone to weed problems in the first place. A UC Riverside Turfgrass Science report from the fall of 1975 detailing renovation research at Big Canyon Country Club in Newport Beach found that heavy traffic on native soils compresses turf and allows weeds to invade, a dynamic that has shaped decades of sod and soil management strategy in the area.

Years of Debate Before Action

Newport Beach has wrestled with this question for years. Back in March 2019, the city council held a two-hour study session on organic versus synthetic chemical weed management following an $80 million California court verdict over Roundup, though council members remained divided at the time over eliminating chemicals entirely, according to the Newport Beach Independent. Neighboring Irvine settled the question a decade earlier, unanimously voting in 2016 to eliminate synthetic pesticides and herbicides on all city-maintained parks and athletic fields, becoming the first city in Southern California to adopt a comprehensive organic landscaping policy, as reported by the Los Angeles Times at the time.

The scientific backdrop has also shifted. The International Agency for Research on Cancer, part of the World Health Organization, classified the herbicide ingredient glyphosate as probably carcinogenic to humans in 2015, citing limited human evidence and sufficient animal evidence. That classification has underpinned years of public pushback against municipal chemical spraying, including an Orange County protest documented in Hoodline's earlier coverage of the San Juan Creek pushback.

Regional Health Fears Add Urgency

The timing of Newport Beach's vote is inseparable from mounting anxiety across South Orange County over a potential pediatric cancer cluster in nearby Ladera Ranch, where roughly six children have been diagnosed with Ewing sarcoma, prompting calls for federal EPA investigations into local pesticide applications, according to Patch. That concern has already moved county government to act. Orange County Vice Chair Katrina Foley requested that state public health and agricultural officials investigate regional pesticide exposure after she initiated a countywide pause on routine herbicide spraying along county-managed property in May 2026, Voice of OC reported.

The chemical industry's local ties add another layer to the story. AMVAC Chemical Corp., an agrochemical manufacturer headquartered in Newport Beach, complied with a federal ban by voluntarily withdrawing its synthetic herbicide DCPA, sold as Dacthal, from the market after regulators identified significant fetal health risks, CalMatters reported in 2024. The U.S. Environmental Protection Agency had issued an emergency order suspending all registrations of DCPA that same year, its first such emergency action in nearly 40 years, citing evidence of irreversible fetal thyroid harm and decreased IQ, according to TPG Online Daily.

With the new sod management program in place, Newport Beach now joins Irvine among Orange County cities that have formally moved away from synthetic weedkillers on public athletic fields. The city's 17 fields will be maintained going forward through organic treatments and mechanical weed control between sod replacements, with the multi-year replacement cycle intended to keep the turf both weed-resistant and safely playable for the youth leagues and recreational users who rely on them.