Council water supplies

Kaikohe-Ngawha

Updated 5 March 2021

Kaikohe's raw water is drawn from two sources and treated at two water treatment plants; a groundwater supply at Tokareireia (Monument Hill) and the Wairoro Stream near the Taraire Hills water treatment plant. Wairoro Stream supplies about 70 per cent of the town’s water, while the secondary water source at Monument Hill supplies the remaining 30 per cent. 

Supply improvements

A new deep-aquifer bore being drilled at Tokareireia could meet up to 45 per cent of Kaikohe’s summer water requirements. Estimates suggest the 120-metre-deep bore could provide about 900 cubic metres of water a day, although that volume would only be used if Wairoro Steam, Kaikohe’s primary water source, was running low.

Water flows

Kaikohe 4 Mar.png    

Flows in Kaikohe’s main water source, Wairoro Stream, have stabilised since falling following an upward spike on 14 February. They remain above the consented limit of 13 litres a second and are significantly higher than where they were this time last year.

Level 2 water restrictions. No automatic sprinklers or irrigation devices. 

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Okaihau

Updated 5 March 2021

The source of water for Okaihau is an underground aquifer and currently our two bores serve a population of about 800.

Supply improvements

Work on a new bore tapping into the same aquifer as the existing supply is due for completion by the end of February 2021. The existing bores were ageing and producing increasingly turbid (dirty) water that needed extra treatment. Testing of the new supply is now underway and will be completed by the third week of February. 

Water flows

No graph available

Water restrictions

Level 1 No water restrictions. Use water sensibly.

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Kerikeri-Waipapa

Updated 5 March 2021

The Waingaro Reservoir normally supplies 65 per cent of water to Kerikeri. This reservoir is owned and operated by the Kerikeri Irrigation Company. Some Kerikeri residents and businesses are connected directly to Kerikeri Irrigation Company supplies, which is provided for irrigation and stock use only. Council water restrictions do not apply to Kerikeri Irrigation Company supplies. The remaining 35 per cent of raw water comes from the Puketotara Stream.

Together the reservoir and Puketotara Stream provide Kerikeri-Waipapa with a stable water supply. However, water restrictions will be applied when demand exceeds the capacity of the treatment plant to treat water. Restrictions may also be applied if supplies from Waingaro Reservoir are disrupted. This occurred during the drought when very dry ground caused several breakages in the supply line. When the line breaks, air enters the water and fine air bubbles reduce our ability to treat water. It can take days for bubbles to disappear. During this time, we rely solely on the Puketotara stream to supply Kerikeri and Waipapa.

Water flows

 Kerikeri 4 Mar.png

Flows in Puketotara Stream, the town’s secondary supply, have increased following recent rain and are well above the NRC consent level. We have no concerns currently about either infrastructure or water quality at the primary water source, Waingaro Reservoir. The blue line in the graph above shows flows since 13 January. The green line shows flows during the same period in 2019/20. The red line shows the consented flow level of 113 litres per second. The Council must get permission from the Northland Regional Council to take water from the river when flows fall below the consent level.

Water restrictions

Level 1 No water restrictions. Use water sensibly. 

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Kaitaia

Updated 5 March 2021

Kaitaia’s primary water source is the Awanui River with a secondary, much smaller supply from the Okahu Stream. The Council has a consent to take water from the Awanui at flows above 460 litres a second at the water intake.

Supply improvements

The Council is developing a bore site at Sweetwater near Kaitaia to permanently supplement supplies from the Awanui River. The water will be piped to the Council’s water treatment plant in Okahu Road and is due to be operational before the 2021/22 summer. 

The Council will build a permanent weir in the Awanui River below its intake pipe to raise the water level and improve supplies during dry weather.

A Council bore at Sweetwater near Awanui will be used to supply water tankers if required this summer, easing pressure on the Awanui. The bore was reopened at the height of last summer’s drought to meet rising demand for water from bulk carriers.

Water flows

 Kaitaia 4 Mar.png

Flows in Kaitaia’s main water source, the Awanui River, had been falling following an upward spike on 14 February. However, they have risen again over the last couple of days following recent rain. We are therefore reducing water restrictions from Level 3 to Level 2. The blue line in the graph above shows flows since 1 January. The green line shows flows in 2019/20. The red line shows the consented flow level of 460 litres per second. 

Water restrictions

Level 2 water restrictions. No automatic sprinklers or irrigation devices.  

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Kawakawa-Moerewa

Updated 5 March 2021

Kawakawa and Moerewa sources water from bores fed by the Tirohanga Stream. The Council has consent to take water while Tirohanga Stream flows above 170 litres a second.

Supply improvements

The Council is undertaking research on how closely bore water levels are connected to flows in Tirohanga Stream. We suspect that bore water levels may not follow flow levels in the stream as closely as previously thought. If that is the case, we may apply to adjust our consent with NRC so that the Council can continue to take groundwater for Kawakawa and Moerewa customers even when flows in the Tirohanga are lower. 

Water flows 

 Kawakawa 4 Mar.png

Flows in the Tirohanga Stream have recovered after falling below the consented limit of 170 litres a second in the last week of February. They were above the consented limit earlier this week so we are reducing water restrictions from Level 3 to Level 2. The blue line in the graph above shows flows since 1 February. The green line shows flows in 2019/20. The red line shows the consented flow level of 170 litres per second. 

Water restrictions

Level 2 water restrictions. No automatic sprinklers or irrigation devices.  

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Paihia-Opua-Waitangi

Updated 5 March 2021

Water for the Paihia-Opua-Waitangi supply is sourced from the Waitangi River. There is no consent limit applied to this water source. Restrictions are occasionally applied when the river is in flood or when demand exceeds the capacity of the treatment plant to treat water.

Supply improvements

The Council has an initial business case prepared to build a new water treatment plant for Paihia-Opua-Waitangi. The Council will investigate securing land for the plant before moving the project into detailed design.

Water flows 

 Waitangi 4 Mar.png

Flows in the Waitangi River are well above the level that would trigger a water conservation strategy and demand is also below levels experienced during the peak holiday season. The blue line in the graph shows flows since 22 January. The green line shows flows in 2019/20. While there is no consent limit for the river, flows less than 522 litres per second would trigger a water conservation strategy.   

Water restrictions

Level 1 No water restrictions. Use water sensibly.

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Omanaia-Rawene

Updated 5 March 2021

The only source of water for Omanaia-Rawene is Petaka Stream. The Petaka Stream is very small and our water take point is at the edge of the bushline in the Waima Ranges.

Supply improvements

A $2.8 million water treatment plant and storage tanks near Omanaia was completed in 2019 and is now supplying the Omanaia and Rawene communities. The facility has increased the supply’s resilience meaning Level 2 water restrictions no longer need to be applied automatically in December. 

Water flows

 Omanaia 4 Mar.png

 

The Petaka Stream has remained very resilient this summer and flows are well above the consent limit. The blue line and dot (11 litres per second at 24 February) in the graph above shows flows since 22 January. The red line shows the consented flow level of 2 litres per second. 

Water restrictions

Level 1 No water restrictions. Use water sensibly.

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Opononi-Omapere

Updated 5 March 2021

A bore at Smoothy Road is the primary water source for the Opononi-Omapere community in the summer and the Waiotemarama Stream is a secondary supply.

Supply improvements

Until 2020, Waiotemarama Stream was the primary raw water source for the community. However, it was very vulnerable to dry weather, requiring the Council to automatically apply Level 2 water restrictions to the supply each December.

Water flows

No graph available

Flows in Opononi's secondary water source, the Waiotemarama Stream, have reached the NRC consent limit and water is no longer being taken from this waterway. The Smoothy Road bore, the primary water source for Opononi-Omapere, is currently the only water source for the community. There are no concerns about this supply and no restrictions are required.   

Water restrictions

Level 1 No water restrictions. Use water sensibly. 

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