Neither hexavalent chromium nor arsenic appears in Tesla’s TCEQ discharge permit as an allowable pollutant. Neither was tested for during TCEQ’s February investigation.

Oh wow the state of Texas authorized it? Well in that case I’m sure it’s fine! They’re renowned for their environmental safety and concern.

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