RTOs remove toxic compounds from emissions like formaldehyde, benzene and Volatile Organic Compounds. The company indicated it costs $3 million each year to operate RTOs, which need to be replaced every 10 years at a cost of $10 million. The mill's RTOs are due to be replaced.

Manitoba Conservation allowed LP to stop using the RTOs on an interim basis. In March 2009, the Minister of Conservation requested Manitoba's Clean Environment Commission (CEC) to conduct an investigation and public meeting regarding the permanent request.

Environmental group, Concerned Citizens of the Valley, accuse Conservation Minister Stan Struthers and the CEC of restricting the public to ask questions and cross-examine the government and Louisiana Pacific at the upcoming CEC investigation meetings. To date it appears there may be no transcript, evidence or public registry ability.