Imperial Beach Water Contamination Lawsuit
Thousands of Imperial Beach and Coronado-area residents have spent years living with something that should never have been allowed to happen — a relentless, government-documented wave of raw sewage, toxic chemicals, and airborne contaminants flowing across the U.S.-Mexico border and onto their beaches, into their air, and into their lives. This is not a minor nuisance. It is one of the worst environmental disasters in Southern California’s recent history.
If you live near Imperial Beach, the Tijuana River Valley, or the coastal communities north of the U.S.-Mexico border and you have experienced persistent foul odors, declining property values, business losses, or unexplained health symptoms, you may have the right to seek compensation. Adler Law Group, APLC is currently investigating claims on behalf of affected residents. Our consultations are free, and you pay nothing unless we win.
What Is the Imperial Beach Water Contamination Crisis?
For decades, the communities along San Diego’s South Bay coastline have borne the consequences of a cross-border sewage catastrophe. Tijuana’s aging wastewater infrastructure was built for a fraction of the city’s current population, which has grown by nearly 30 percent over the past 15 years. As Tijuana expanded, its sewage systems did not. The result: hundreds of millions — eventually more than a billion — gallons of raw, untreated wastewater have been discharged into the Tijuana River and the Pacific Ocean.
The South Bay International Wastewater Treatment Plant (SBIWTP) was specifically designed to intercept and treat transboundary sewage before it reaches U.S. communities. Instead, federal records and environmental watchdogs have documented more than 500 illegal discharge incidents from the plant since 2018. The plant’s operator, Veolia Water North America-West, accepted millions of dollars in federal funding to manage the facility. The communities downstream paid the price.
Imperial Beach sits just miles north of the border. Its residents have breathed the air, walked the beaches, and lived in the homes nearest to the source. The beach has been closed to swimming for over 1,000 consecutive days as of 2024. That number continues to grow.
Who Is Responsible?
Veolia Water North America-West
Veolia Water Operating Services and Veolia Water North America-West operate the South Bay International Wastewater Treatment Plant under contract with the International Boundary and Water Commission (IBWC). Despite receiving substantial federal funding, Veolia has allegedly failed to properly maintain, operate, and upgrade the facility. The result is more than 500 documented illegal discharges — well over a billion gallons of raw sewage released into the Tijuana River and Pacific Ocean since 2018.
The International Boundary and Water Commission (IBWC)
The IBWC is the federal agency responsible for overseeing cross-border water infrastructure between the United States and Mexico. Residents and environmental advocates argue that the IBWC has failed to enforce its own permits, compel repairs, and hold Veolia accountable for the ongoing violations. Multiple lawsuits — by environmental groups, municipalities, and now individual residents — have named the IBWC as a key defendant.
A Systemic Failure
The cities of Imperial Beach and Chula Vista, along with the San Diego Port Commission, sued Veolia and the IBWC years before residents filed their own claims. Environmental organizations have pursued parallel federal litigation under the Clean Water Act. The scale of this negligence is not disputed — it has been documented in court records, scientific studies, and government reports for years.
The Impact on Property and Quality of Life
This crisis has gutted the economic and personal lives of thousands of families.
Property values in the affected areas have dropped significantly as the contamination crisis has dragged on. Homeowners who invested in beachside properties have watched their neighborhoods become associated with toxicity and beach closures rather than the coastal lifestyle they paid for. Business owners who depend on beach tourism have seen revenue disappear. Residents report being unable to open windows, work in their yards, or let their children play outside on bad air days.
The Health Consequences Residents Are Reporting
This crisis has not just harmed property and business values, it’s impaired the health of residents. The contamination is not only a water problem. In August 2025, a peer-reviewed study published in Science, conducted by researchers from UC San Diego’s Scripps Institution of Oceanography, UC Riverside, San Diego State University, and the National Science Foundation, linked Tijuana River sewage pollution directly to toxic air quality in Imperial Beach neighborhoods.
The study found that the Tijuana River emits hydrogen sulfide — a toxic gas associated with raw sewage — at levels up to 4,500 times higher than typical urban environments. In some neighborhoods, residents were exposed to hourly averages 70 times greater than California’s one-hour air quality standard. That is not an odor problem. That is a public health emergency.
Residents throughout the affected zip codes (91932, 91933, and 92154) have reported:
- Persistent and nauseating foul odors, often without warning or relief
- Eye and throat irritation, especially after time spent outdoors
- Recurring intestinal illness and gastrointestinal distress
- Debilitating headaches and fatigue
- Chronic respiratory conditions and worsening asthma or breathing difficulties
- Skin rashes and irritation following beach contact
Vulnerable populations — children, the elderly, military personnel stationed at Naval Air Station North Island and Naval Amphibious Base Coronado, and those with preexisting health conditions — face heightened risk.
Long-term exposure to the industrial pollutants documented in this crisis — including DDT, PCBs, heavy metals, and pathogens — raises serious concerns about cancer risk, neurological harm, and developmental effects in children.
What Compensation May Be Available
Residents who have been harmed by the Imperial Beach water contamination crisis may be entitled to recover damages including:
- Diminished property value and loss of use and enjoyment of property
- Lost income for business owners and workers impacted by beach closures and community disruption
- Loss of quality of life and interference with the use of outdoor spaces, beaches, and recreational areas
- Medical expenses, past and future, related to contamination-caused illness
- Emotional distress from living under ongoing environmental harm
Why Act Now
California’s statute of limitations sets deadlines for filing personal injury and property damage claims. Waiting too long — even if the harm has been ongoing — can foreclose your legal options entirely. Environmental contamination cases also require thorough investigation, expert testimony, and preservation of evidence. The earlier you engage legal counsel, the stronger your position.
The litigation against Veolia and the IBWC is active. More residents are joining. Evidence is being developed. The window to protect your rights and participate in this process is open — but it will not remain open indefinitely.
Why Choose Adler Law Group
Adler Law Group, APLC has spent nearly two decades fighting on behalf of individuals harmed by powerful institutions — utilities, corporations, and government entities that put cost savings ahead of public safety. We have recovered over $2 billion for our clients, together with co-counsel. Since our founding in 2006, we have resolved numerous mass tort and class action cases, including thousands of individual lawsuits, and some of the most complex mass tort and environmental litigation in the country.
We have taken leadership positions in major wildfire litigation, product liability cases, and multi-plaintiff environmental claims. We engage the most qualified experts and investigators, and when we take a case, we commit to it fully. Our clients never pay a fee unless we win.
Boutique in structure, but national in reach — that is what we bring to every case.
Contact Us — Free Consultation
The contamination of Imperial Beach is not a problem residents created. It is the direct result of institutional failures by well-funded companies and federal agencies that had the resources and the legal obligation to prevent this crisis. They did not. You deserve attorneys who will hold them accountable.
Call Adler Law Group, APLC today at (619) 531-8700 or use our contact form to request your free consultation. There is no cost to speak with us, no obligation, and no fee unless we recover for you.