Events - Opuha Water Limited

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Artificial Fresh – 6th April 2017

Posted by | Events, Featured

Due to high levels of phormidium in the Opuha Gorge, Opuha Water Ltd is planning on carry out an “artificial fresh” on the Opuha river. It is our aim to coincide the artificial fresh with the rain event which is forecast for later in the week, the high river flows generated by the rain would allow any algae to be taken out to sea. We will be aiming for a peak flow of around 60 cumecs in the Opuha River, so any public are advised to stay clear of the Opuha and Opihi Rivers and their banks from Thursday afternoon until midday Friday.

If you require any information in relation to the above, please contact Craig Moore (Operations & Asset Manager) on 027 460 9721.

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Stream Depletion Meetings – 20 & 22 March 2017

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Environment Canterbury is hosting two community meetings to share information about the effects of shallow groundwater takes on river flows (stream depletion) in the Opihi and Temuka catchments and Levels and Seadown Plains area.

The dates for these meetings are:

  • Monday 20th March (10am-11.30am) at the Geraldine Domain Pavilion
  • Wednesday 22nd March (6.30-8.00pm) at the Pleasant Point Rugby Club

Please download the flyer below for further information.

adobe-pdf-logoOTOP Stream depletion meetings advert March2017

 

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ATTENTION – Increased River Flow 13-15 March

Posted by | Events, Featured

After the weekends rain event, the flow in the Opihi River above the confluence has increased to a level where it will now be removing some of the phormidium and other algae from the river bed.

To ensure this is removed from the river and taken out to sea, Opuha Water Ltd will be increasing the flow in the Opuha River this evening, to match what would be naturally occurring.

The Opuha River flow will be increased to approximately 20 cumecs at 8pm on the 13th March, and will likely remain around this elevated flow for up to 12 hours.  River users are to be aware of higher than normal flows in the Opuha River and downstream of the confluence until Wednesday the 15th of March.  Warning signs have been placed at the main areas of river access, along with some down at the lagoon.  Farmers and known river users around the Skipton area will be contacted.

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CANCELLATION of Flushing Flow Release

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After receiving some feedback and discussion on the proposed flushing flow for tomorrow (Tuesday 28th February 2017), we have now decided to cancel the planned flushing flow.

The main reason for the cancellation being that the tide timings for the mouth of the river will not suit a flush and could result in debris being left in the lagoon.

The environmental flow in the Opihi River for March increases by 4 cumecs from what we are currently doing.  We will be increasing to this flow early tomorrow morning and be carrying out a small flushing demonstration tomorrow afternoon.  As this will still be a significant increase in flow, the public are still advised to stay out of the river from the afternoon of Tuesday the 28th of February until the morning of Wednesday 1st March.  The good news is that all irrigation scheme intakes will remain open and there should not be any disruption to irrigation as a result of this.

I apologise for any inconvenience caused by the change of plans.  If there are any questions please feel free to contact me.

Craig Moore, Operations Manager

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Flushing Flow Release – Tuesday 28 February 2017

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FLUSHING FLOW RELEASE  – NOTICE OF INTERRUPTION TO IRRIGATION

Due to high levels of didymo in the Opuha Gorge and high levels of phormidium further down in the Opuha and Opihi Rivers, along with some operational imperatives, we have decided that a flushing flow release from the Downstream Weir is warranted. Our consent requires us to step up the river flow from 3.5 cumecs to 7.5 cumecs between February to March and we have found that this step change alone can create operational problems with didymo being scoured from the gorge and coming down the river and into our intakes over the following week.  We have found it better to precede the change in monthly flow regime with a concentrated flush to remove the nuisance didymo and algae from the river system altogether.

The plan at this stage is for the flush, which will start with a 70 cumec release, to begin on the afternoon of Tuesday the 28th of February. After the initial peak flow release, we will attempt to maintain elevated flows (30 cumecs down to 16 cumecs) for the next 8-10 hours. With a travel time of around 12 hours to Pleasant Point, this will mean that river flows will remain elevated right through Wednesday. The 70 cumec peak flow will attenuate significantly once it comes through Skipton and moves down the river.

As has been seen in previous flushes, the river will become significantly discoloured and bring some debris with it. Due to this we will be closing down the irrigation schemes  while the flush flow passes the intakes. The main reasons behind this is to prevent large quantities of silt entering the scheme races and due to certain consent conditions. Please find below the estimated timings of when each scheme will be shut down, and we will do our very best to minimise the disruption to irrigation.

Kakahu
Pipeline (Opuha River to Kakahu River) valve closed at midday.
Gate at Skipton Bridge closed around 1600hrs
River irrigators to cease irrigation by 1800hrs
Irrigators with takes in the Kakahu main race can continue to run until the race runs dry (approx. 2100hrs onwards)
We will work on having water in the Kakahu River and into the Main Race by 0600hrs on Wednesday the 1st March.

Totara Valley
Intake closed at 1800hrs
Irrigators can continue running until the race is out of water.
Intake re-opened at approx. 2200hrs on Tuesday 28th Feb.
In-river Intake to be assessed Wednesday morning to see if rebuild is required

Levels Plain
Intake closed 1900hrs on Tuesday 28th Feb.
Irrigators can continue until race runs dry.
Intake Re-opened 0700hrs on Wednesday the 1st March and all efforts will be made to get everyone started that day.

Please also note that the river flows will obviously be changing dramatically through this exercise and we would appreciate your assistance in ensuring recreational river users and those property owners adjacent to the river are aware of this. The critical period will be from 5pm Tuesday (high flow at Skipton Bridge) and for the following 18-24 hours.

I do apologise for the relatively short notice any inconvenience caused and all efforts will be made to ensure everyone is back up and running as fast as possible.

For any further information, please contact me directly.
Craig Moore, Operations Manager

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Flushing Flow Trial – 03 November 2016

Posted by | Events, Featured

NOTICE TO OPUHA & OPIHI USERS AND ADJACENT RESIDENTS

A Flushing Flow has been scheduled for Thursday 3rd November 2016.

Opuha Water Ltd (OWL) is planning to release flows of up to 60 cumecs from the Opuha Dam starting at 10.00am on Thursday 3rd November 2016.

The release will result in a rapid increase in the flow in the Opuha River and the Opihi River below Raincliff and the flow is likely to remain elevated above the present flows for approximately 20 hours.

During the period of the flow release, the flow and level in the river may change rapidly – especially in the Opuha River and the Opihi River immediately below Raincliff.  While the actual flow rates will not be more than might be expected following typical moderate seasonal rain periods, river users are advised to take care in and around the river from Thursday morning to early Friday because the rate of change will be higher than typically experienced.

For any issues or questions please do not hesitate to contact the Operations & Asset Manager – Craig Moore, Mobile 027 460 9721

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Notice of Annual General Meeting

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To All Opuha Water Shareholders

The Annual General Meeting of Opuha Water Limited has been scheduled for TUESDAY 8th NOVEMBER 2016 at the Pleasant Point Golf Club, Butlers Road, Pleasant Point.  

Refreshments from 3.30pm, followed by the AGM at 4.00pm.

Please refer to the attached information pack which contains the following important documents:

  • Notice of Annual General Meeting to be held on 8th November 2016
  • A Proxy form for the Annual General Meeting
  • Minutes of Meeting of the Annual General Meeting held on 30th November 2015

A copy of the Annual Report for the year ended 30 June 2016 can be downloaded from this link – http://opuhawater.co.nz/company-information/annual-financial-reports

adobe-pdf-logoTo read this information pack, please download the PDF version here:
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Efficient Irrigation Workshop – 27/05/2015

Posted by | Events, Featured, News

Shareholders –

Next Wednesday 27th May, Opuha Water Ltd are hosting an Efficient Irrigation Workshop, in conjunction with three irrigation service providers – HydroServices, Agri Optics and Lindsay. 
This is being held at the Pleasant Point Rugby Clubrooms from 3pm-5.30pm.   

At this workshop you will be able to build on your knowledge of soil water properties and the latest technologies allowing you to irrigate more effectively and efficiently – all very relevant considering the summer we have just encountered and the increasing pressure we are facing to demonstrate we are using the water resource wisely.  Please see the link below to download the flyer for more information. 

Please register for this workshop by email to julia@opuha.co.nz, or by phoning me on 021 535 174 or 03 614 7801 (office), by Tuesday 26th May.

I look forward to seeing you there.
Julia – Environmental Manager

To read the flyer for the Efficient Irrigation Workshop, please download the PDF version here:
adobe-pdf-logoEfficient Irrigation workshop

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Flushing Flow Notice to River Users

Posted by | Events, News

NOTICE TO OPUHA & OPIHI USERS AND ADJACENT RESIDENTS

A Flushing Flow has been scheduled for Thursday 27th February 2014

Opuha Water Ltd* (OWL) is planning to release flows of up to 40 cumecs from the Opuha Dam starting at 8am on Thursday 27th February 2014. The release will result in a rapid increase in the flow in the Opuha River and the Opihi River below Raincliff and the flow is likely to remain elevated above the present flows for approximately 20 hours

During the period of the flow release, the flow and level in the river may change rapidly – especially in the Opuha River and the Opihi River immediately below Raincliff. While the actual flow rates will not be more than might be expected following typical moderate seasonal rain periods, river users are advised to take care in and around the river from Thursday morning to early Friday because the rate of change will be higher than typically experienced.

For further information and continue reading this notice, please download the PDF file using this link – 
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140224 Flushing Flow Notice to River Users