According to a post by Yash
Bajaj in AutoBlog, Tesla’s billion-dollar lithium refinery outside Corpus
Christi, marketed by CEO Elon Musk as a clean, acid-free operation, has been
issued a cease-and-desist order for wastewater that has tested positive for
carcinogenic heavy metals and high lithium concentrations. The facility had
been discharging about 231,000 gallons of wastewater per day into a local
drainage ditch. At a 24-hour continuous rate, that is about 160 gallons per
minute.
The Texas Commission on
Environmental Quality (TCEQ) issued Tesla a wastewater permit in January 2025.
However, the permit apparently did not cover heavy metals or lithium.
“Local officials at the Nueces County Drainage District
No. 2 were completely unaware of the arrangement until their maintenance
workers discovered an unfamiliar pipe expelling black liquid across their
easement in early 2026. While the TCEQ conducted a brief investigation in
February 2026, state regulators cleared Tesla of any violations because the
original permit did not require monitoring for lithium or heavy metals.”
According to Arcelia Martin
of Inside Climate News:
“Eurofins Environment Testing, an accredited lab with
locations across the globe, reported traces of hexavalent chromium, a
well-known carcinogen, and arsenic, an environmental poison. Nueces County
Drainage District No. 2, which manages the ditch, commissioned the test.”
Other components of concern
found in the Tesla wastewater are strontium, vanadium, and lithium. These can
be toxic to aquatic organisms, other wildlife, and humans. Other minerals at
significantly higher than background concentrations include sodium, potassium,
calcium, and magnesium put the water’s salinity at near-brackish conditions,
about 10-20 times more salty than typical freshwater. These salts can dehydrate
and kill plants. They can also kill the plants holding the banks of the ditch,
resulting in greater erosion.
High levels of manganese,
iron, and phosphorus were also detected. The iron can deplete dissolved oxygen.
The phosphorus can help trigger harmful algae blooms. There are also elevated
levels of ammonia, which breaks down into nitrite, then nitrate. Nitrate can
fertilize algal growth and increase chemical oxygen demand (COD). This can
cause problems such as suffocation for fish.
All of these chemicals are
indicative of industrial-sourced wastewater. There seems to be nothing else
that could cause such concentrations of these chemicals, although there is a
possibility that some of the arsenic may come from local groundwater through a
nearby overflowing pond. Nueces County Drainage District No. 2 referred to the
water testing results as “quite disturbing.” South Texas is currently
dealing with depleting groundwater levels, and the wastewater will likely have
a negative effect on local water quality and eventually local groundwater
quality as it infiltrates the ground.
As noted, the TCEQ tested the
water in February and found it to meet the permitted conditions. Apparently,
TECQ did not expect elevated levels of these toxic metals and contaminants.
“TCEQ initiated its February investigation after workers
for the drainage district found an unfamiliar pipe stretched across its
easement. The workers reported black liquid expelling into the ditch. The
drainage district, which manages the ditch area, was unaware that the state
gave Tesla permission to use it.”
“District officials were confused how the state could
allow Tesla to discharge an average of 231,000 gallons of lithium refinery
wastewater each day into the district’s ditch without notification. TCEQ said
it doesn’t communicate directly with local drainage districts as part of the
permitting process.”
“Volunteer drainage district engineer Aref Mazloum said
TCEQ didn’t test for heavy metals in its compliance investigation because that
hadn’t been part of the district’s complaint filed earlier this year. When the
investigation concluded, he said he requested the results and commissioned the
third-party wastewater testing to see what else might be in the water.”
Mazloum, now with the TCEQ
Water Supply division, said the discharge would have to be remediated before it
could resume. He said the company should “design and fund an on-site
multi-stage wastewater treatment plant.” He recommended reverse osmosis as
a treatment method. He also noted that the concentrated brine left over after
treatment would have to be hauled away to a hazardous waste facility or
processed through a zero-liquid discharge system.
Fortunately, there are no
water intakes or drinking water wells within five miles downstream of the site.
The drainage ditch flows into Petronila Creek and eventually to Baffin Bay, a
Gulf fishing spot.
References:
Tesla’s
'clean' lithium supply faces questions after toxic metals found in wastewater. Yash
Bajaj. AutoBlog. April 25, 2026. Tesla’s
'clean' lithium supply faces questions after toxic metals found in wastewater
Independent
Testing Where Tesla’s Lithium Refinery Discharges Wastewater Found Toxic Metals:
The drainage district that commissioned the test has now sent a
cease-and-desist letter to Tesla’s operations, near Corpus Christi. Arcelia
Martin. Inside Climate News. April 21,
2026. Independent
Testing Where Tesla’s Lithium Refinery Discharges Wastewater Found Toxic Metals
- Inside Climate News
26.04.15
Tesla Letter and Report. THE LAW OFFICE OFFRANK A. LAZARTE, PLLC. April 15, 2026.
26.04.15
Tesla Letter and Report | DocumentCloud




























