Tesla's lithium refinery discharges 231,000 gallons of polluted wastewater a day

autonocion.com

397 points by atombender 4 hours ago


something765478 - 3 hours ago

> The permit, a Texas Pollutant Discharge Elimination System authorization known as TPDES, allowed up to 231,000 gallons of treated wastewater per day to be discharged into an unnamed ditch that flows into Petronila Creek and from there into Baffin Bay, a longtime South Texas saltwater fishing destination.

Ok, so sounds like Tesla got the necessary legal provisions.

> What it did not do, explicitly, was grant Tesla the right to use public or private property for wastewater conveyance.

I'm confused, does Tesla have the right to dump water or not? I would assume that this is exactly what a permit is for?

> The drainage district that manages the ditch the pipe was discharging into was never notified that the permit existed

This should be on the Texas Commission on Environmental Quality; they issued the permit, so it should be on them to notify the affected area.

> Tesla also argues that the Eurofins sampling methodology was inappropriate, because the lab placed its sampling equipment in the ditch downstream of the outfall pipe rather than at the outfall itself. The permit requires monitoring at the outfall point, and the company has pointed out that ditch samples can pick up contaminants from sources that have nothing to do with Tesla’s wastewater.

As the article itself says, that is a legitimate argument.

porphyra - 4 hours ago

Obviously, discharging "dark and murky" polluted water is bad. But some of the figures from the lab report don't seem that terrible:

* Hexavalent chromium at 0.0104 milligrams per liter, just above the lab’s reporting limit of 0.01 mg/L. Hexavalent chromium is classified as a known human carcinogen by the US National Toxicology Program. It is the substance the Erin Brockovich case was built around.

* Arsenic at 0.0025 mg/L. That is below the federal drinking water standard of 0.01 mg/L, but present.

The hexavalent chromium is also just barely above the California drinking water standard [1]

[1] https://www.waterboards.ca.gov/drinking_water/certlic/drinki...

xg15 - 3 hours ago

> What [the wastewater discharge permit] did not do, explicitly, was grant Tesla the right to use public or private property for wastewater conveyance. The drainage district that manages the ditch the pipe was discharging into was never notified that the permit existed.

I find it kinda worrying that so much of the legal weight of this case doesn't seem to be about the untreated wastewater discharge at all but only about the detail that they used a county-owned ditch to do so.

So if Tesla had dug their own ditch or built the pipe all the way to Petronila Creek, the discharge would have been no problem?

(Well, that's not completely true as the additional pollutants aren't covered by the permit either - but without the ditch issue, probably no one would have commissioned an analysis of the water?)

TheJoeMan - 3 hours ago

Jason Bevan, Senior Manager of Site Operations at the Robstown plant, said in a written statement that the company “routinely monitors and tests its permitted wastewater discharge” and “remains in complete compliance with all requirements of its state-issued wastewater discharge permit, including applicable water quality standards.”

What an awful character. I am thankful I don't have to deceive or tell half-truths for a paycheck. The dispute is that they are discharging things not listed in the permit, and their response is that they don't exceed the limits of the things that are listed in the permit.

I also fault the government employee who submits a sample for testing from a lithium plant and doesn't check a box "test for lithium".