
The US Environmental Protection Agency (EPA) regulates dry kiln condensate in 40 CFR 429.130 under the “Finishing” subcategory. The EPA asserts that there shall be no discharge of process wastewater pollutants into navigable water. Furthermore, lumber manufacturers are subject to Industrial Stormwater Permitting Regulations under the National Pollutant Discharge Elimination System (NPDES). Lumber manufacturers are covered under Sector A: Timber Products of the EPA’s Multi-Sector General Permit (MSGP), which states that as a process water discharge, kiln condensate is considered a non-allowable stormwater discharge. Section 6 of the MSGP states that any discharges not expressly authorized in the MSGP cannot become authorized or shielded from liability under the Clean Water Act section 402(k), preventing state environmental divisions from permitting kiln condensate to discharge into state waters. Because of the multiple layers of regulations, there can be no direct discharge of kiln condensate to state waters, regardless of how well the kiln condensate is treated. Continue reading “Discharge of Lumber Dry Kiln Condensate” →