Investment boosts plant efficiency - Business News
Fonterra’s $85 million investment in a new wastewater treatment plant at its Hautapu site is already delivering more than environmental gains, helping secure the long-term future of one of the region’s key processing assets. At the co-operative’s annual community meeting last month, staff outlined how the Wai Mahia plant, opened in February and now fullyRead More
Fonterra’s $85 million investment in a new wastewater treatment plant at its Hautapu site is already delivering more than environmental gains, helping secure the long-term future of one of the region’s key processing assets. At the co-operative’s annual community meeting last month, staff outlined how the Wai Mahia plant, opened in February and now fully operational, is improving compliance, reducing risk and strengthening relationships with regulators and mana whenua. The story of Fonterra Hautapu dairy factory. Jude van BommelEnvironmental manager Jude van Bommel told the meeting there had been three reportable incidents to Waikato Regional Council last season, down from six the previous year. Complaints had also reduced, with one odour issue and one noise complaint compared to four previously. The improvements came as the plant transitioned from its commissioning phase to full operation. The new treatment process is designed to significantly reduce nutrient loads before water is discharged to land or the Waikato River, a change expected to deliver long term benefits for groundwater quality. Quarterly monitoring of nitrates and sodium in surrounding bores is continuing, with early indications pointing to a gradual improvement as lower nitrogen loads move through the system. Fonterra said it expects a turnaround in bore water quality over time, reflecting the reduced nutrient levels in treated wastewater. The company is also refining how and when it discharges water, balancing irrigation to land with river discharge depending on seasonal conditions and rainfall, in line with consent requirements. Supporting that work is DairyFert, the co-operative’s by-product management arm, which continues to spread treated material onto farms under separate consents. Janelle Jenson Dairy FertManager Janelle Jenson outlined new equipment and future plans for real time nutrient monitoring, allowing more precise application of by-products to land. At present, nutrient levels are confirmed through laboratory testing, which can take up to 10 days, meaning estimates are used in the interim for compliance reporting. Real time data would tighten that process, improving accuracy and operational efficiency. Alongside environmental upgrades, the site is also continuing work on energy use, including its transition from coal to biomass, as Fonterra looks to reduce emissions across its network. Hautapu has been recognised internally for its performance, winning the company’s Best Medium Size Site Cup and Quality Cup in 2025, followed by the Japan Cup in 2026 for cheese quality. But alongside the operational gains, Fonterra says one of the most important outcomes has been the strengthening of its relationship with mana whenua. National environmental operations manager Dale Arbury said the project had shifted the company’s approach from a transactional model to one focused on long term partnership. Dale ArburyRegular engagement with Ngāti Korokī Kahukura and Ngāti Hauā throughout the project has seen cultural practices incorporated into site activities, including karakia for key milestones and the gifting of the name Wai Mahia for the treatment plant. That relationship is also reflected in wider site developments, including the upcoming unveiling of a carved pou created from a tōtara treeIn a regulatory environment where environmental performance and community expectations continue to tighten, the ability to demonstrate improvement and build trust is becoming critical to maintaining a licence to operate. At Hautapu, the co-operative is positioning itself for that future by combining capital investment, operational change and closer engagement with those connected to the land. Fonterra HautapuIwi and Fonterra staff at the opening of the Hautapu Wastewater Treatment Plant earlier this year. Photo: Fonterra