Ōpononi Wastewater Treatment Plant The Ōpononi wastewater treatment plant is located on Baker Road, Ōmāpere. This plant treats wastewater from the Ōpononi and Ōmāpere townships
Whatuwhiwhi Wastewater Treatment Plant The Whatuwhiwhi wastewater treatment plant is located approximately 1 kilometre northwest of Whatuwhiwhi on the Karikari peninsula. The plant serves the townships of Tokerau beach as well as Whatuwhiwhi.