DairyNZ outlines requirements for workable freshwater policy
DairyNZ says freshwater policy in New Zealand has been revised repeatedly since 2010, reflecting the complexity of managing water quality. In its account, regulation should set expectations and provide a baseline, while also recognising actions being taken on farms.
The organisation says rules should be practical, cost-effective, durable and flexible enough to reflect differences among farms and catchments. It also says farmers need confidence that spending on infrastructure, farm systems and environmental improvements will produce returns over time, particularly during an election year when policy uncertainty can complicate long-term planning.
Science and local conditions
DairyNZ says the link between land use and water quality is affected by soil types, rainfall, groundwater and previous land use. Changes made on farms may therefore take time to appear in water-quality monitoring, according to the organisation.
Targets and limits can be useful, it says, but should be combined with local catchment knowledge and practical judgement. DairyNZ advocates an approach that considers both measured outcomes and actions with an established record, allowing farmers flexibility while pursuing improvements in waterways and communities.
Measures on farms
Approximately 84% of dairy farms are operating under comprehensive dairy-company Farm Environment Plans, according to DairyNZ. The organisation also cites the fencing of waterways, planting along stream margins, wetland restoration, improved effluent systems and changes to nutrient management as measures being undertaken by dairy farmers.
DairyNZ says the pace and scale of these changes differ among catchments. It also identifies catchment groups and peer networks as ways for farmers, communities and other participants to coordinate work around shared objectives. The organisation says such groups can support collective action across a catchment when combined with accountability and appropriate support.
Waikato plan
Waikato Regional Council’s Plan Change 1 establishes new rules intended to improve water quality in the Waikato and Waipā catchments. The plan has been in development for 13 years. The Environment Court issued its final decision in June 2026, after which the council was required to revise the plan wording by July 21 to reflect that decision.
The plan is not yet operative. Further steps include any appeals and final drafting. DairyNZ says reforms to the Resource Management Act could affect Plan Change 1, although the timing and extent of those effects remain uncertain. The organisation says it will continue to participate in the process and press for rules it describes as practical and science-based.
