The National Policy Statement requires regional authorities to set objectives for water quality and quantity. These objectives will determine appropriate limits for all indicators of water quality.
DairyNZ is supporting the collaborative decision-making process by providing technical advice. Our water scientists have worked with the Bay of Plenty Regional Council to analyse and report on trends of water quality indicators from 2004-2013.
Click on the infographic (right) to see water quality trends for 25 frequently monitored stations.
From 2004 to 2013, six of 100 indicators exhibited a worsening (increasing) trend whereas 39 indicators exhibited an improving (decreasing) trend. This means increasing concentrations were observed at three sites for phosphorus, two sites for sediment and one site for nitrogen. All 25 sites either improved or exhibited no trend for E.coli. During the same period, milking cow numbers increased by 6% to 336,306 cows and milksolid production rose by 8% to 108.8 million kg.
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