A report has suggested that a Tesla lithium refinery in Robstown, Texas, could be exploiting a gap in testing to discharge two toxic metals and other concerning pollutants. Nueces County Drainage District No. 2 asked for the test from Eurofins Environment Testing after local workers were alarmed to see that a pipe unknown to them was sending a black liquid into a drainage ditch, per The Texas Tribune. Further testing detected hexavalent chromium…