UPDATE: FRIDAY 18 FEBRUARY
NEXT UPDATE: MONDAY 21 FEBRUARY by 5pm

SITUATION

The wastewater level has dropped a little, thanks to dry weather and the fantastic effort from our community, but inflows remain above what we can discharge.  There are a few man-hole covers in the reticulated network which are still overflowing, which indicates a lot of pressure / excess water in the system.

WHAT WE NEED FROM YOU

You can now happily flush your loo 😊

We are asking you still please MINIMISE the discharge of greywater into the wastewater system, as we are expecting more rain over the weekend.

THIS MEANS:
You CAN use your washing machine, BUT please try to minimise your use to only when needed.

You CAN take showers, BUT please try to keep them as short as possible.

Please also be mindful with activities such as washing dishes and washing cars – please keep this to a minimum.

Please continue to let us know about areas of concern by placing a service request either online at  https://cdc.govt.nz/service-request/ or by calling 06 379 4030.

NEXT STEPS AND GOOD NEWS

Greater Wellington Regional Council has granted us permission to increase our discharge flows during this time to 148 litres per second.  This will continue over the weekend.

Rainfall forecasts are for light rain especially on Saturday and we are hoping this will not cause too many issues on top of what we are already dealing with.

Because you are now able to flush your toilet, we will reopen the public toilets and remove the portaloos.

The flow and inundation investigations continue and as mentioned earlier in the week have identified an area of interest, which we will explore further once flows reduce.

The team are working hard on dealing with the excess flows and cleaning up the roads and properties when the flows reduce. Massive shout out to our staff members who are out there cleaning up some not-so-nice messes for our community.

We are very thankful to everyone who has helped us get through last weekend’s events – from emergency services, to residents, community groups, council staff, elected members, portaloo providers, businesses and schools. It really has been a community effort and shows how we can pull together when there’s an emergency.

UPDATE: WEDNESDAY 16 FEBRUARY
NEXT UPDATE: FRIDAY 18 FEBRUARY by 5pm

Teams yesterday worked backwards in the network to trace the source of high in-flows. We have identified an area of interest (six blocks in total) where high flows remain and will investigate this further when the network flows reduce.
Thank you once more for responding to our requests for help.
We greatly appreciate everyone’s patience while we deal with this situation.

CURRENT SITUATION
The water levels at the wastewater treatment plant remain high and taking longer to subside than expected.

WHAT WE NEED FROM YOU
Please continue MINIMISING TOILET FLUSHING, showers and washing machine usage where possible to help reduce the flows into our wastewater treatment plant.
THIS MEANS:
You CAN flush your toilet, BUT only when necessary.
You CAN take showers, BUT please keep them as short as possible.
You CAN use your washing machine, BUT only if it’s urgent.

We expect we will be able to lift these restrictions by the weekend, however we will confirm this on FRIDAY 18 FEBRUARY by 5pm.

OTHER ACTIONS
We are reducing the level of our wastewater reservoirs, however, we can only discharge as fast as the UV treatment allows. We anticipate additional capacity from the first new Dalefield pond being available for storage at the end of next week.
The weather forecast is looking okay for the next few days, which will help with the water levels.
Part of the work we’re doing is making sure we maintain hygiene without adding extra greywater to the system. We will do a full flush once water levels are low enough.
We know you have been asking about whether we can discharge some of the water to the new ponds and whether they will be in a better position to cope with this type of extreme weather event once they are operational.
The first of the new ponds will be open by the end of this month, but is not quite ready for us to discharge water to right now.
Later in the year we will also have an upgraded UV system which will give us the ability to discharge more water.

MANHOLE COVERS
We are aware of a few manhole covers with sewage overflowing. The water should stop flowing as the levels drop at the treatment plant. However, PLEASE REPORT THESE TO COUNCIL by calling 06 379 4030 or filling out a service request.
In some instances we are able to chemical dose and clean down the area with super-chlorinated water, however, we need the water to stop flowing out the manhole cover first.
Once it stops we can attend to it as a high priority.

PORTALOOS
More portable toilets have been set up around Carterton. These will be available until Friday at the following locations:
• Bird’s Park: Two [one at each entrance, to Frederick St and Charles St]
• Memorial Square: Two
• Moreton Rd Reserve
• South End Park
• Carrington Park: Four
• Sparks Park
• Clareville Cemetery

HOW CAN I STAY UP TO DATE
Like and follow our Facebook page @cartertondistrictcouncil
Check the home page of our website www.cdc.govt.nz/news
Listen for updates on local radio More FM 89.5FM
Subscribe to our email list www.cdc.govt.nz/newsletter
Please keep in contact with friends, whānau and elderly neighbours who may not be as connected.

Flooding event in Carterton: UPDATE 5pm, Monday 14 February

NEXT UPDATE: Midday Wednesday 16 February

Current situation

The water levels at the wastewater treatment plant are still very high and taking longer to subside than expected. We are reducing the level of our wastewater reservoirs, however, we can only discharge as fast as the UV treatment allows. After observing flows today, we now expect the backlog of water to take several days to subside. We anticipate additional capacity from the first new Dalefield pond being available for storage at the end of next week.

Manhole covers

We are aware of a few manhole covers with sewage overflowing. The water should stop flowing as the levels drop at the treatment plant. However, PLEASE REPORT THESE TO COUNCIL by calling 06 379 4030 or filling out a service request here. In some instances we are able to chemical dose and clean down the area with super-chlorinated water, however, we need the water to stop flowing out the manhole cover first. Once it stops we can attend to it as a high priority.

What we need from you

Please continue MINIMISING TOILET FLUSHING, showers, and washing machine usage where possible to help reduce the flows into our wastewater treatment plant. This means:

  • You CAN flush your toilet, BUT only when necessary.
  • You CAN take showers, BUT please keep them as short as possible.
  • You CAN use your washing machine, BUT only if it’s urgent.

The good news

Portaloos

We are working hard to get the network back to normal and to put measures in place in the meantime. We will have 2 additional portaloos and 2 Little Green Dunny toilets from tomorrow afternoon at the following locations:

  • South End Park
  • Moreton Road Reserve
  • Memorial Square

This is in addition to the 2 existing toilets at Carrington Park. We will continue to source more portaloos as they become available.

The weather forecast is looking okay for the next few days, which will help with the water levels.Part of the work we’re doing is making sure we maintain hygiene without adding extra greywater to the system. We will do a full flush once water levels are low enough.

We know you have been asking about whether we can discharge some of the water to the new ponds and whether they will be in a better position to cope with this type of extreme weather event once they are operational. The first of the new ponds will be open by the end of this month, but is not quite ready for us to discharge water to right now. Later in the year we will also have an upgraded UV system which will give us the ability to discharge up to 300 litres per second (a much greater capacity and match inflow than the current system).

How can I stay up to date?

 


UPDATE: 1pm MONDAY 14 FEBRUARY

1PM UPDATE
All roads are now open.
Unfortunately, the water levels at the wastewater treatment plant are still very high so we are asking you please continue to MINIMISE TOILET FLUSHING, showers and washing machine usage where possible to help reduce the flows into our wastewater treatment plant. We’ve added some photos in the comments to show current water levels.
FAQ:
HOW LONG WILL THIS GO ON FOR?
We will be able to provide you with a clearer picture at our 5pm update. This is because we are monitoring throughout the day how quickly/slowly the water is subsiding. Please note, you CAN still flush and use your washing machine when absolutely necessary, we’re just asking you to minimise this as much as possible to help the system recover quicker.
WHY CAN’T YOU PUMP THE WATER OUT?
We are pumping out to the stream and doing this as fast as the ultraviolet [UV] pumps  will allow. The UV is the controlling factor for the rate.
 
NEXT UPDATE: 5PM

Update: 9:30am Monday 14 February

Due to lack of rainfall overnight, most of the flooding in the district has now eased.

However, our wastewater treatment plant is still underwater and overwhelmed.

Therefore we are still asking you to please MINIMISE TOILET FLUSHING where possible to help reduce the flows into our wastewater treatment plant.

If you must flush the toilet, you can.

It will take a further reduction in water to return our network to normal.

Please also minimise other water use including washing machines and take shorter showers.

The culvert on Chester Road has been cleared and Clareville Cemetery is no longer underwater.

[Further updates due 1pm and 5pm]

ROADS

CLOSED: Mangatarere Valley Road, Kokotau Rd at Ruamahanga River Bridge

All other roads in Carterton District have been reviewed and are now reopened.

Next update: 1pm

 


6PM UPDATE

WHAT’S HAPPENED

Overnight Saturday, Carterton received a substantial amount of rainfall, like many other areas of the Wellington region.
Roads have excessive surface flooding and has entered some homes.
Our wastewater treatment plan is overwhelmed by the sheer amount of rainfall and is causing some backflow issues when people try to flush their toilets. The wastewater inflows were twice what we are normally able to deal with.. The sewer system is mostly gravity so when the water inundates the system it can’t go anywhere which is why there is no flushing happening for some urban residential properties.

WHAT WE’RE DOING

We are coordinating with contractors and emergency services, as well as other agencies to control the situation as much as possible.
This means trying to source sandbags for properties in immediate flooding risk, closing roads, clearing slips and storm drains and keeping everyone as up to date as possible.
We also have 2 portaloos at Carrington Park. These were the only 2 which were available to us as other towns are experiencing the same issues as us.

WHAT WE NEED FROM YOU:

  • Please continue to minimise toilet flushing where possible to help reduce the flows into our Wastewater treatment plant. If you must flush the toilet, you can, but be aware the system is overloaded and may create some back flow issues It will take a reduction in rainfall to return our network to normal.
  • Please also minimise other water use including washing machines and take shorter showers.
  • Keep travel to a minimum. Only travel if you need to and take precautions. Please do not go ‘sight seeing’. It makes it worse for those residents and people are getting stuck which causes extra unnecessary work for emergency services
  • Like and follow our Facebook page and keep an eye on our website. This is not because we’re desperate for followers, it’s so we can help get the word out quickly when events like this happen. We will post a further update tomorrow morning.
  • If your property is at immediate risk of flooding, please call emergency services on 111
  • If you have any urgent service requests (there’s been a landslip on your road we don’t know about) please call 06 379 4030 or fill out an online form here
  • If you have any concerns about the information in this email and would like your feedback passed on to our Chief Executive, please reply to this email or email direct to comms@cdc.govt.nz

ROAD CLOSURES:
Kokotau Rd Closed at Ruamahanga River Bridge
Dalefield Rd Closed at Lincoln Rd Intersection
Lincoln Rd Closed At Dalefield Rd Intersection
Brooklyn Rd Closed at Lincoln Rd
Mannings Rd Closed at Brooklyn Rd
Matarawa Rd Closed at SH 2
Mangaterere Valley Road – Closed – Slips, Trees down – This will be closed till 14-02-2022 10am

2.45PM UPDATE
Mangatarere Valley Road CLOSED. Diggers are being sent to clear slips and fallen trees.
Traffic management at Dalefield Road has been attended to.
Again, we ask you to avoid any unnecessary travel. If you do need to travel, drive with caution.
The heavy rain and wind is expected to dissipate around 4pm this afternoon.

11.45am UPDATE

We will have 2 portaloos available at Carrington Park from around 1.30pm. These were the only portaloos available.

9.30am

PLEASE AVOID FLUSHING THE TOILET 😬💩
With the amount of rain overnight, the wastewater inflows are twice what we normally deal with and is overwhelming the network. The sewer system is mostly gravity so when the water inundates the system it can’t go anywhere which is why there is no flushing happening. We know it’s a BIG ask but the only thing we can do is:
1. Avoid flushing toilets where possible, or use of anything dicharges greywater (e.g washing machines)
2. Please be patient while flows reduce and allow the system to return to normal operations.
We will review and update this late today.
ROAD CLOSURES
There is surface flooding in many parts of the region please avoid travel where possible. If you do need to travel, please take extra caution.
– Kokotau Rd Closed at Ruamahanga River Bridge
– Dalefield Rd Closed at Lincoln Rd Intersection
-Lincoln Rd Closed At Dalefield Rd Intersection
-Brooklyn Rd Closed at Lincoln Rd
-Mannings Rd Closed at Brooklyn Rd
-Matarawa Rd Closed at SH 2

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