After the company was identified , it voluntarily shut down until ion exchange equipment could be installed in accordance with environmental guidelines .
The company was using 220 gallons per month of perchloric acid in a bleaching process , and rinse water was being discharged into the sewage system .
After the company was identified , company voluntarily shut down until ion exchange equipment could be installed in accordance with environmental guidelines .
The company was using 220 gallons per month of perchloric acid in a bleaching process , and rinse water was being discharged into the sewage system .