“Owens Corning’s action plan to reduce hexavalent chromium will result in an 88 per cent reduction in the concentration of hexavalent chromium.” 

Read about the decision here:
http://www.ebr.gov.on.ca/ERS-WEB-External/displaynoticecontent.do?noticeId=MTI1OTI2&statusId=MTkzNjUx&language=en

Thank you,

Cam