We should flood it with seawater.
You go there and the lake looks... concentrated.
I recall reading something Mark Twain wrote about it:
"The lake is two hundred feet deep, and its sluggish waters are so strong with alkali that if you only dip the most hopelessly soiled garment into them once or twice, and wring it out, it will be found as clean as if it had been through the ablest of washerwomen’s hands."
Look up the Los Angelas Aqueduct.
Spoiler alert: people put terrible contaminants in the water that are now dust-borne, and it smells terrible. These are unrelated phenomena.
I hope someday they connect it to the sea. The area below sea level, El Centro and such, is good for farming, but another inland port seems like a reasonable trade. I'm sure the residents would disagree though. Given enough time, nature will do it for us, as that is one of the rare places where a rift valley is forming on land.
"Metcalf & Eddy, a Massachusetts based firm with almost a century of experience in large scale water resources management, has proposed building two canals, the largest of which would be navigable for ocean going vessels. The cost for digging the U.S. section is estimated at $300 million, with the final pricetag for the completed canals approaching $3 billion. While this is indeed a considerable chunk of money, it is nonetheless a good bargain, considering the increased revenue in land and commerce taxes which local governments stand to gain."
My comment was in jest anyways, nothing wrong with the Death Valley ecosystem.