Chehalis Regional Wastewater Treatment Plant

The Chehalis Regional Water Reclamation Plant was a new waste water treatment plant replacing the existing City of Chehalis WWTP.  The project is a $25 million waste water treatment plant with a peak capacity of 13 MGD.  The plant utilizes a sequence batch reactor (SBR) system to treat the waste water which after treatment will be utilized to irrigate a poplar tree plantation.