Marine Terraces South

The Marine Terraces comprise a series of wave-cut platforms found in coastal areas to the north and south of the volcanic ring plain. These terraces have been cut into the underlying Tertiary sedimentary formations and are overlain by flat-lying deposits of sand, siltstone, conglomerate, peat, and coal. These cover beds are approximately 35 metres thick.

Numerous shallow wells and bores draw from unconfined aquifers within the cover beds, typically yielding between 0.3 and 2.6 litres per second. No confined aquifers occur within the Marine Terraces.

There are many permitted takes (less than 50 cubic metres per day) across the Marine Terraces, supplying water for stock, general farm use, and domestic supply. Due to generally low yields, the aquifers cannot support high-demand activities such as pasture irrigation. As a result, there are currently no consented groundwater takes from the Marine Terraces that exceed 50 cubic metres per day.

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.

Total allocated volume includes consented use only and no allowance has been made for 'permitted' use volumes.

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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