Chiquita Canyon Landfill Update: Fall 2026
Real Estate October 26, 2026
Real Estate October 26, 2026
Here in Hasley Canyon, we seem to be experiencing many more days lately when the air feels improved and landfill odors are less noticeable. We are not directly next to Chiquita Canyon Landfill, and our experience does not necessarily reflect conditions for neighbors closer to the property. Still, those better days are welcome.
As residents and real estate professionals, we want to understand what is happening beyond what we personally observe. For our neighbors throughout Castaic, Val Verde, and the surrounding Santa Clarita Valley, the questions remain: What is improving? What concerns remain? And what does all of this mean for living, buying, and selling here?
Recent records show additional cover installation, new federal requirements, and continued oversight. They also show equipment interruptions, unresolved environmental concerns, and criticism of the public agency response. There is progress worth acknowledging, with substantial work still ahead.
Chiquita Canyon stopped accepting waste on January 1, 2025. The operator remains responsible for managing the property, addressing the underground reaction, and completing closure and post-closure activities. Closing to incoming waste did not end the reaction or those responsibilities.
Federal EPA describes a subsurface elevated-temperature event that began around May 2022. The reaction can generate excessive heat, additional gases, and increased quantities of leachate, the liquid that moves through waste and collects dissolved substances. Controlling those gases and liquids remains central to the response.
Additional engineered cover is one of the more tangible developments.
In its October 16 report, the operator stated that approximately 4.3 million square feet—about 99 acres—of newer geomembrane cover had been installed as of October 9, with repairs and sealing work continuing. These are operator-reported figures, rather than an independent agency determination that all required work is complete.
That distinction matters. In May, Los Angeles County announced that its Solid Waste Facilities Hearing Board upheld an order requiring coverage of the entire landfill, including a disputed 66-acre portion, with an August 31 deadline. The records reviewed for this update do not establish that the full County requirement has been satisfied.
On October 19, EPA issued an amended work order requiring further improvements to gas collection and treatment, leachate-vapor controls, and sulfur-pollution treatment. It replaces the September 24 order and provides additional milestones for the work ahead.
These developments give the community concrete items to track. Their effectiveness will ultimately need to be demonstrated through sustained results.
Equipment reliability continues to be an issue. The operator reported unplanned downtime involving two flares on October 18, with both returning to operation later that morning. Its October reporting also documented leachate incidents and another AQMD notice of violation.
CalEPA reports that leachate associated with the reaction has contained benzene at levels requiring hazardous-waste management. This finding concerns liquid at the landfill; it should not be interpreted as a finding about a particular home’s drinking water.
EPA and California’s Department of Toxic Substances Control have required long-term leachate-treatment planning and emergency offsite storage arrangements. EPA has also directed work to reinforce the western slope and improve liquid treatment.
Our experience of better days is encouraging, but it cannot establish a regional air-quality trend or resolve questions about long-term control.
On October 27, 2026, California Attorney General Rob Bonta, alongside the Department of Toxic Substances Control, announced a civil lawsuit against Chiquita Canyon, LLC, Chiquita Canyon, Inc., and Waste Connections US, Inc. The complaint alleges repeated failures to properly manage hazardous waste, including leachate spills and deficiencies in hazardous-waste transportation, treatment, storage, and disposal. The state is seeking civil penalties, recovery of profits allegedly obtained through unlawful conduct, and court-ordered remedies, including an abatement fund to address environmental pollution and protect natural resources. This is an additional state enforcement action, separate from the existing County and AQMD lawsuits. These are allegations and requested remedies, not a final court ruling. From our local perspective, the filing is a significant accountability development, although it does not establish a new recovery deadline or guarantee immediate relief for nearby residents.The County’s Response Is Also Under Review
A September 29 California State Auditor report found that Los Angeles County Public Health’s response had been incomplete. Findings included shortcomings in documenting review of certain air-quality data, communicating with residents, and maintaining current information about reported health conditions. The report also criticized the delay in directing the operator to fund temporary relocation assistance.
In a response reported by KHTS, Supervisor Kathryn Barger acknowledged that affected families deserve relief and emphasized accountability, ongoing County litigation, and keeping residents informed. The audit recommended that the Board of Supervisors direct improvements in community engagement and two-way communication.
Clear communication is part of the work. Residents should be able to understand what has been completed, what remains outstanding, and what monitoring results mean for their community.
A September 29 California State Auditor report found that Los Angeles County Public Health’s response had been incomplete. Findings included shortcomings in documenting review of certain air-quality data, communicating with residents, and maintaining current information about reported health conditions. The report also criticized the delay in directing the operator to fund temporary relocation assistance.
In a response reported by KHTS, Supervisor Kathryn Barger acknowledged that affected families deserve relief and emphasized accountability, ongoing County litigation, and keeping residents informed. The audit recommended that the Board of Supervisors direct improvements in community engagement and two-way communication.
Clear communication is part of the work. Residents should be able to understand what has been completed, what remains outstanding, and what monitoring results mean for their community.
We reviewed 219 closed residential sales sourced from the California Regional Multiple Listing Service (CRMLS) for the last 365 days, including 198 in Castaic outside the Val Verde MLS area and 21 within Val Verde. Across the recent sales data, the median time on market was 29 days, with an average of approximately 48 days. Castaic’s median was 28.5 days, compared with 36 days in Val Verde. Results varied considerably: 78 listings recorded two weeks or fewer on the market, while 36 exceeded 90 days. Approximately 35% of the closed listings had a final asking price below their original asking price. Among those properties, the median net asking-price reduction was approximately $37,835, or 4.4%. In Castaic, the corresponding medians were $36,170 and 4.1%; in Val Verde, they were $74,000 and 10.6%, although Val Verde’s figures reflect just seven reduced listings and should be viewed cautiously.
These numbers illustrate a market in which some homes continue to find buyers quickly, while others require more time and pricing adjustments. They do not establish that the landfill caused those outcomes or that market times have increased compared with a previous year. Property condition, initial pricing, financing costs, insurance, and buyer confidence all deserve consideration alongside location-specific landfill concerns. This analysis includes closed sales only, with recorded closing dates from October 29, 2025, through October 23, 2026. Reductions compare original and final recorded asking prices—not closing prices—and may not capture every adjustment or earlier listing history. They should not be interpreted as equivalent declines in property value.
In our professional view, the local market needs to be considered through several factors together:
The supplied sales data does not isolate the contribution of any one of these factors. We would not assign a specific “landfill discount” from these numbers.
We also believe this is a highly localized issue. Distance, location, wind direction, terrain, and conditions around a particular property deserve attention. A broad Castaic address—or even a neighborhood name—does not fully describe someone’s day-to-day experience.
For sellers, our perspective is to approach pricing with current, closely comparable sales and realistic expectations. For buyers, it is to research the specific property, review available information, and consider the full cost and experience of ownership.
The records reviewed do not establish a completion date for the overall recovery, but they do identify specific steps ahead. South Coast AQMD currently lists an October 28, 2026 hearing to review the landfill’s abatement order and possible modifications. Residents should check the agency’s hearing page for schedule changes and participation details.
Under EPA’s October 19 order, the operator must submit a gas-system improvement plan by November 2, followed by rerouting leachate-tank vapors to appropriate treatment equipment by November 30. Work extends into 2027: a sulfur-control pilot plan for Flare 4 is due February 1, changes separating treatment of reaction gas from higher-methane landfill gas are required by March 1, and the Flare 4 pilot must begin by April 1. A plan for a thermal oxidizer with sulfur controls is due May 1, followed by an updated flare-capacity assessment by June 1. Operation and performance testing of the specified thermal-oxidizer/sulfur-control unit must begin by December 1, 2027. These milestones provide a schedule for corrective work, subject to subsequent agency action; they are not promised dates for the end of odors or the underground reaction.
At the state level, Governor Newsom signed AB 28, concerning landfill subsurface temperatures, on September 20, 2026. That legislative development is separate from completion of the work at Chiquita Canyon. For our community, the meaningful measures will be completed improvements, reliable operation, and sustained results.
At 35 Oaks Property Group, we live and work in this community. We appreciate the better days we have experienced, and we recognize that neighbors closer to the landfill may continue to face very different conditions.
Our perspective is grounded in local experience, available sales data, and current agency updates. We want our clients and neighbors to have useful information without overstating either the improvements or the concerns.
Residents can follow current developments through:
Odor complaints can be reported to South Coast AQMD at 1-800-CUT-SMOG (1-800-288-7664).
This article provides general information and 35 Oaks Property Group’s professional market perspective as of the publication date. It is not a legal opinion, appraisal, environmental assessment, or determination of health risk. The sales analysis does not establish the cause of any individual property’s marketing time, price adjustment, or sale result.
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