After Texas regulators said Tesla Inc.’s lithium refinery near Corpus Christi wasn’t violating its permits by discharging black wastewater into a drainage ditch, independent water testing commissioned by a local drainage district found two toxic metals and other contaminants..
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.
Neither hexavalent chromium nor arsenic is included as an allowable discharge pollutant in Tesla’s wastewater permit…