Fracking and oil drilling are some of the thirstiest industries in the world. Every barrel of oil brings up several barrels of toxic wastewater, a brew laced with heavy metals, carcinogens like benzene, PFAS “forever chemicals,” and even radioactive isotopes. This so-called produced water is one of fossil fuel’s dirtiest secrets: the U.S. generates billions of gallons every day, far more wastewater than oil.
Instead of paying to safely treat or contain it, oil companies are lobbying to rebrand this hazardous waste as a “resource.” In drought-stricken states like California, Texas, New Mexico, and Colorado, industry is pitching wastewater reuse as a climate solution — a way to stretch limited water supplies. But peer-reviewed studies and independent reviews show this is a false solution that shifts risk onto communities, farmers, and consumers while keeping fossil fuels alive.
Produced water contains hundreds of chemicals — some naturally occurring, others added during drilling and fracking. A 2020 review in Environmental Health Perspectives found contaminants include heavy metals, volatile organic compounds, radionuclides, and persistent toxic chemicals, many with no established safety thresholds for reuse (Wollin et al. 2020, PMC).
Treatment technologies can remove some salts and metals, but no method can guarantee the elimination of all toxic constituents (Texas Produced Water Consortium 2024, Texas Tech). The science is clear: produced water is not equivalent to freshwater, and using it outside oilfields exposes people and ecosystems to unknown, potentially irreversible harm.
For decades, farmers in California’s Kern County have irrigated almonds, pistachios, citrus, grapes, and vegetables with oilfield wastewater blended with surface water. State regulators say fracked water is excluded, but the same chemicals used in fracking are also used in “conventional” drilling — and those chemicals can end up in irrigation streams (California Water Board fact sheet).
The health implications remain uncertain. A 2021 peer-reviewed study in Risk Analysis modeled human exposure to trace metals from crops irrigated with oilfield water. Most consumers fell below thresholds of concern, but arsenic-related cancer risks increased for vegetarians consuming large amounts of these foods (Redmon et al. 2021, PMC). Another study in Environmental Science & Technology found soils irrigated with blended oilfield water accumulated salts and boron, raising long-term risks for soil health and crop viability (Kondash et al. 2020, PubMed).
Meanwhile, real contamination has already occurred. Chevron’s Lost Hills facility allowed unlined ponds of wastewater to leak into groundwater and even the California Aqueduct, a critical drinking water source (Grist, 2023). Despite these warnings, California continues to normalize wastewater reuse under the banner of “drought resilience.”
Texas is moving even faster. In June 2025, Governor Greg Abbott signed a law authorizing treated fracking wastewater for agricultural irrigation. The state generates about 33 million barrels of produced water every day — more than 1,500 Olympic swimming pools — or nearly 12 billion barrels annually (Texas Produced Water Consortium 2024).
The law also shields oil companies and landowners from liability if wastewater reuse causes harm. Yet the Texas Commission on Environmental Quality (TCEQ) has no comprehensive water quality standards for produced water, only a nascent database of its chemical contents.
Scientific evidence suggests risks are real. A 2020 experiment published in Science of the Total Environment showed irrigating wheat with just 5% produced water decreased crop yields, reduced soil microbial diversity, and damaged soil health (Miller et al. 2020, ScienceDirect).
Despite this, TCEQ is already reviewing permits to discharge treated produced water directly into waterways like the Pecos River, raising alarm among communities and environmental advocates (EDF & Texas Living Waters 2025 report).
In May 2025, after 18 months of debate, New Mexico’s Water Quality Control Commission prohibited the discharge of treated fracking wastewater to rivers, croplands, or other uses, citing a lack of science-based safeguards. Environmental groups praised the ruling as responsible and necessary.
But within a month, an industry lobby — Water, Access, Treatment and Reuse (WATR), backed by Chevron, ConocoPhillips, and Occidental Petroleum — pressured the commission to reopen the debate immediately. Legislators condemned the maneuver as an abuse of administrative process.
Scientists warn the risks are too great. New Mexico produces more than two billion barrels of produced water annually. Without strict regulation, companies could spread carcinogens, heavy metals, and radioactive particles into communities, crops, and waterways.
Colorado became the first state to mandate recycling, requiring 4% of oilfield wastewater to be reused in 2026, ramping up to 35% by 2038. While hailed as precedent-setting, critics note the rules are modest compared to the billions of gallons produced, lack penalties for violators, and may add air pollution from treatment plants and trucking.
The Colorado Produced Water Consortium, a legislatively created group of scientists, community members, and industry reps, framed the rules as a cautious start. But even its members admit the approach legitimizes reuse without fully protecting frontline communities.
Human health: Produced water carries carcinogens, endocrine disruptors, salts, and radionuclides. Treatment cannot guarantee full removal.
Food chain: Studies show irrigating with produced water changes soils and reduces yields (Miller et al. 2020). Long-term accumulation of toxins in crops is poorly understood.
Soils and aquifers: Boron and salts accumulate, threatening soil viability and groundwater quality (Kondash et al. 2020).
Seismic activity: Deep-well injection of wastewater, still the industry’s main disposal method, has triggered earthquakes across Oklahoma and Texas.
Labeling produced water reuse as “climate resilience” is deceptive. In reality, it:
Shifts disposal costs from oil companies to communities and farmers.
Puts consumers at risk by introducing toxins into food and water supplies.
Greenwashes fossil fuels, helping prolong drilling.
Distracts from real solutions like phasing out oil, conserving water, and scaling regenerative agriculture.
Peer-reviewed science and government reports all agree: there is no evidence that produced water can be treated to a standard safe for unrestricted agricultural or municipal use. And yet, under the pressure of drought and industry lobbying, states are rushing ahead.
From almonds in Kern County to wheat fields in Texas, fossil fuel waste is being smuggled into our food system under the banner of drought relief. The science shows risks to soil, crops, and human health — and the industry admits treatment is costly and incomplete.
This is not water conservation. It is toxic waste disposal in disguise. Communities across the Southwest deserve real solutions, not benzene with their breakfast.
Key Sources:
Redmon et al. 2021, Risk Analysis: PMC
Kondash et al. 2020, Environmental Science & Technology: PubMed
Miller et al. 2020, Science of the Total Environment: ScienceDirect
Wollin et al. 2020, Environmental Health Perspectives: PMC
Texas Produced Water Consortium 2024: Texas Tech
EDF & Texas Living Waters 2025: Report PDF
California Water Board factsheet: Waterboards.ca.gov