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Manawatū-Whanganui region

Surface Water Zone: Rangitīkei

The Rangitīkei River is 253 km long and its catchment covers an area of 3,948 square km. Streams total 6,214 km. The Rangitīkei catchment has a number of tributaries including the Moawhango (97 km), Hautapu (83 km), Kawhatau (53 km) and Mangawharariki (33 km) Rivers.

The headwaters of the Rangitīkei are situated in the Kaimanawa Ranges, south-east of Lake Taupo. It flows south through the Central Plateau, past Taihape, Mangaweka, Hunterville, Marton and Bulls to the Tasman Sea at Tangimoana, 40 km south-east of Whanganui. The Rangitīkei flows through rural areas with sheep and beef farming accounting for about half its land use and dairy farming about 20%. In the Rangitīkei catchment the ‘National Water Conservation (Rangitīkei River) Order 1993’ is in place which affects the allowed abstraction in the Upper Rangitīkei (no abstraction) and the Middle Rangitīkei (allocation of only 5% of the natural flow). The existing hydro-electricity take by Genesis Energy’s Tongariro Power Development also impacts on water availability in the Moawhango River. This is reflected in Schedule B of the One Plan where the allocation limits for the Moawhango sub-zones are set at zero. Currently, Rangitīkei catchment sub-zones Rang_1a, Rang_2c, Rang_2d, Rang_2e and Rang_4c are fully allocated and sub-zone Rang_4d is over-allocated. At the ‘Whole Zone Cumulative’ and ‘Catchment Cumulative’ levels there is water available for further allocation.

Water Use
Surface Water in this Zone

Regional councils collect information about how much water is available and manage resource consents for those wishing to take water from rivers and streams. Use the buttons below to view information on: how much water is available, where it comes from and how its used.

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Rainfall {{waterAvailable.rainfall}} Runoff to sea {{waterAvailable.runoff}} Surface Water available: {{waterSource.availableToAllocate}} Irrigation
{{waterUsage.irrigationLabel}} Industrial
{{waterUsage.industrialLabel}} Stock
{{waterUsage.stockLabel}} Hydroelectrical
{{waterUsage.hydroLabel}} Town supply
{{waterUsage.drinkingLabel}}
  • How much surface water is there in this zone?

    Rainfall and flow in this surface water zone

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    Rainfall and runoff

    Relative breakdown Source Volume
    Rainfall total:
    {{waterAvailable.rainfall }}
         		rainfall Rainfall Total {{waterAvailable.rainfall}}
    Runoff total:
    {{waterAvailable.runoff }}
         		runoff Runoff to sea {{waterAvailable.runoff}}

    The table above shows the average amount of rainfall the water management zone receives each year and how much of that flows out to sea. These are approximate figures only.

    33260260

  • Water consents: How much water is consented and used?

    Surface water available to consent

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    Consented water in this surface water zone

    Use the tables below to look at how much water is available compared with how much is actually consented within this water management zone. Click the plus to expand subzones where available

    {{item.zoneId}}
    Comparing consents and use
    Amount available to consent In this surface water management zone:
    {{item.data.totalAvailableAmount}} {{item.data.totalAvailableUnits}}
    available to consent
    Amount consented
    measured and non measured
    Amount used (measured)
    Amount Units Consented or used as a percentage of available
    Total available to consent {{item.data.totalAvailableAmount}} {{item.data.totalAvailableAmount}} {{item.data.totalAvailableUnits}}
    Total consented {{item.data.totalConsented.amount}} {{item.data.totalConsented.amount}} {{item.data.totalAvailableUnits}} {{item.data.totalConsented.percentText}}
    Total consented and measured {{item.data.totalMeasured.amount}} {{item.data.totalMeasured.amount}} {{item.data.totalAvailableUnits}} {{item.data.totalMeasured.percentText}}
    Total measured amount used {{item.data.totalAmountUsed.amount}} {{item.data.totalAvailableUnits}} {{item.data.totalAmountUsed.percentText}}
    Total measured volume used {{item.data.totalAnnualVolumeUsed}} {{item.data.totalAnnualVolumeUnits}}

    The table above shows the amount of water that is available for use compared to the amount that has been consented. The ‘Total Consented’ and ‘Total Consented and Measured’ fields are based on percentages of the ‘Total available to Consent’ field. If this field is not populated no data will be displayed. Some consents require actual use to be monitored and this is presented as 'Total measured volume Used' where available.

  • Water consents: How is consented water used?

    Consents by use in this surface water zone

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    Consented water

    Overall annual volume for {{waterAvailable.year}}
    Relative breakdown
    Activity Percentage of total consented Total volume Number of consents
    {{item.displayText}} {{item.displayText}} - - No data available {{item.breakdownPercentage}}% {{item.totalVolume}} m3 {{item.numberOfConsents}}
    Total {{waterUsage.total.percentageConsented}}% {{waterUsage.total.totalVolume}} m3 {{waterUsage.total.numberOfConsents}}

    The above table shows the proportion of water consented for irrigation, industrial, stock, town supply and other. It excludes hydro electricity. In this region/management zone {{hydroUsage.totalVolume}} m3/year is consented for hydro-electricity and makes up {{hydroUsage.percentageConsented}}% of the total water volume consented for this region/management zone

Sites

Monitored sites in this Zone

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