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

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

#161

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> This is a racist sentiment. Shame on you.

He’s talking about outsourcing/pollution economics, not rhat Chinese people are inferior .. not every inelegant sentence needs to be turned into a civil rights case .. [insert clown emoji here]

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

#162

> 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 t…

>> 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.

That's some top notch weasel wording right there. If sampling from the ditch reveals contaminants that are not natural to the area but are the same contaminants that are measured from the output of the pipe, then a natural question could be "are the contaminants leaking from upstream and leaching into the ground run off into the ditch?" which would still be a Tesla problem.

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

#163
post #22

Earlier quoted context omitted.

So, it's fine as long as it's legal, then? How about when it enters the food chain and starts to accumulate? Will the elements say that "we're under legal limits, and accumulate slowly, so we will act nice and don't poison the organism we're in?" Love that way of thinking.

> So, it's fine as long as it's legal, then? > Love that way of thinking. I mean.. yeah, kinda'? We live in a society made up of laws, that's kind of the premise. So if we don't think something is fine, we can make it illegal (and we often do). It's a pretty good way of thinking methinks, what's your alternative?

The issue lies in how the laws are decided and by whom.

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

#164
post #4

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 0.002…

Those levels are low enough that they might be coming from the water going into the plant.

Arsenic and hexavalent chromium are both naturally occurring substances in low quantities. You can pull uncontaminated water out of the ground in remote locations and detect low levels of arsenic and hexavalent chromium.

That hexavalent chromium number would be just barely about California's strict limit for drinking water, but it's 1/10th of the EPA's limit.

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

#165
post #4

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 0.002…

If I wanted to fall under that reporting limit, can I just dilute my wastewater a bit more?

That level of arsenic is so low that diluting it with groundwater might cause the arsenic number to go up, depending on where this is located.

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

#166

> 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 t…

> Tesla have the right to dump water or not? I would assume that this is exactly what a permit is for? My guess is this is a question of overlapping jurisdictions. The Texas Commission on Environmental Quality is presumably responsible for water quality, and so gets a say on what kinds of discharge in the state are safe. The drainage district has to manage the actual ditches and water on the ground, so they get a say…

> Just like how the DOT gets to create rules about locomotives but Railways still get to decide who can run trains on their tracks.

Fun fact, in 2005, as of Texas Railroad Commission no longer has anything to do with railroads and moved that oversight to the DoT. The TRC now is only involved with oil&gas. It is one of my favorite dumb things about Texas. Why not just rename the group and eliminate the TRC altogether, oh right, politics.

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

#167

Anyone else remembering Neal Stephenson's "Zodiac"?

First thing I thought of, except in this story the outfall seems to have been discovered through the ordinary diligence of government, rather than by a plucky eco-buccaneer.

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

#168

I'm no lover of Elon Musk but this article reads like a hit piece and I literally laughed when I read the findings: > 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 bel…

> Neither hexavalent chromium nor arsenic appears in Tesla’s TCEQ discharge permit as an allowable pollutant

Also the fact that this pipe was not included in the permit is a problem:

> What it 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. Its workers found out the way drainage district workers in any small Texas county find out about things: by walking the ditch and seeing something new.

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