Tasman region

Groundwater Zone: Motueka - Riwaka Plains GroundWater Zone

The Motueka-Riwaka Plains is situated northwest of Nelson. Gravels deposited into Tasman Bay from the Motueka and Riwaka rivers have formed the Motueka-Riwaka coastal plains. Covering an area of approximately 40 km2, these plains support intensive horticulture and the towns of Motueka and Riwaka. Underlying the coastal plains is the Motueka-Riwaka aquifer system.

The aquifer system underlying the Motueka-Riwaka Plains is a primary source of water for irrigation, industrial, community, domestic and stockwater supplies. Both the Motueka township and the nearby Riwaka settlement provide reticulated community water supplies from the aquifer system. Many other houses outside of the reticulated supply areas have individual shallow domestic wells for potable water supply. Water is also exported from the aquifer system to the north of the Motueka River for potable supply to the nearby Kaiteriteri community.

Resource Consent information for this zone is current to the 2023/24 season.

Water Use

Groundwater in this zone

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

Groundwater available: {{waterSource.availableToAllocate}} Irrigation
{{waterUsage.irrigationLabel}} Industrial
{{waterUsage.industrialLabel}} Stock
{{waterUsage.stockLabel}} Hydroelectrical
{{waterUsage.hydroLabel}} Town supply
{{waterUsage.drinkingLabel}}

Groundwater in this zone

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Groundwater in this zone

Accurately estimating the total amount of water available in a groundwater management zone is not currently possible. Regional Councils are working with the Ministry for the Environment on the best way to calculate this figure. We will include these figures on LAWA when they become available. In the meantime, for more information about a particular groundwater management zone, contact your regional council.

Water consents: How much water is consented and used?

Groundwater available to consent

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Consented water in this groundwater 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

Comparing consents and use
Amount available to consent	In this groundwater 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 groundwater zone

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Consented water in this zone

Overall annual volume for {{waterAvailable.year}}

Relative breakdown

Activity	Percentage of total consented	Total volume	Number of consents
{{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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