Sewer Main Renewal Program 2019

Icon Water conducts an ongoing program to rehabilitate sewer mains that are about to reach the end of their service life or are at risk of blockage, so that our sewerage network can continue to reliably serve our community. Over five years we aim to renew 80 kilometres of ageing sewer main, or 16 kilometres per year. Where they have been completed these annual works have already reduced the risk of sewer blockages by 60 per cent.

Suburbs in the sewer main rehabilitation program from April 2019 until 30 August 2019 include:
Suburb Estimated start date Total (metres)
Ainslie May-19 839
Aranda May-19 355
Belconnen Apr-19 317
Bonython May-19 8
Braddon May-19 45
Chifley May-19 296
Chisholm May-19 78
City May-19 33
Cook Apr-19 367
Curtin Apr-19 1,471
Deakin May-19 184
Duffy Jun-19 92
Evatt Apr-19 129
Fadden May-19 132
Farrer Jun-19 85
Florey Apr-19 154
Forrest May-19 168
Forrest May-19 31
Fraser Apr-19 473
Garran Apr-19 400
Gordon May-19 40
Greenway May-19 530
Griffith May-19 488
Hawker Apr-19 103
Holder May-19 44
Holt Apr-19 5
Isaacs May-19 18
Kaleen Apr-19 502
Kambah May-19 710
Latham Jul-19 146
Lyons Apr-19 1,551
Macgregor Apr-19 115
Mawson Apr-19 386
Melba Apr-19 146
Narrabundah May-19 692
O'Connor May-19 453
Page Apr-19 173
Pearce May-19 345
Phillip Apr-19 160
Redhill Jun-19 110
Richardson Apr-19 51
Rivett May-19 22
Scullin Apr-19 492
Spence Apr-19 180
Stirling May-19 133
Theodore Jun-19 41
Torrens May-19 426
Turner May-19 127
Wanniassa May-19 572
Waramanga May-19 128
Weetangera Apr-19 1,265
Weston May-19 119
Yarralumla May-19 348
Total 16,275

Access to your property

We may need to access sewer manholes on your property prior to and during rehabilitation works. 

Affected residents will receive a letter from Icon Water once work is confirmed – this may be several months before the work begins. Residents will receive another letter from Icon Water at least seven days prior to access being required. 

Icon Water’s contractors (Pipe Replacement Solutions (PRS) and Interflow) will provide written notification three days prior to work starting on your street. A courtesy letter will be left if we are unable to access your property.

Following works, in cases where we need to return to complete restoration, we will leave a card confirming our intention to return. We will always endeavour to return the areas in which we work to a condition as close as possible to the original condition.

If customers have any concerns about how an area may be affected we encourage them to talk to us prior to the works.

How is the work done?

Sewer mains rehabilitation will be carried out by pipe bursting or pipe lining techniques.

Pipe bursting involves pulling a new polyethylene pipe through an existing vitreous clay or concrete pipe with an aid of a bursting head. As the bursting head is pushed, using either pneumatic or hydraulic hammer, the existing pipe cracks and creates space for the new pipe. A new pipeline can then be installed within the existing alignment, without needing to excavate the whole pipe alignment. 

Pipe lining involves inserting and then expanding a PVC liner inside the existing sewer main. The new liner, when fully installed, is a standalone structural pipe. Some noise will be generated by the installation machinery during the process.  Works will be undertaken  between 6:00am and 6:00pm on working days .

Icon Water has engaged contractors Pipe Replacement Solutions (PRS) and Interflow to undertake these works and their staff will be carrying Icon Water identification cards at all times. Works generally take four weeks, depending on the condition of the sewer main and weather.

Sewer tie replacement

The process may also involve replacement of your sewer tie (the point where your property’s sanitary drain connects to the length of sewer that is to be rehabilitated). This will be assessed following further investigation - our contractor will notify you if any excavation is required.

Sewer tie replacement may require an excavation of approximately one metre by two metres. The sewer tie is typically located just inside the boundary of your property and the whole operation can take a number of days. Your sewer connection will only by disrupted for an hour or two on a nominated day.  

How you can help

We recommend deferring non-essential internal plumbing works (such as plumbing renovations) during the works. Remove any access obstructions from the sewer manhole if one is located within your block. Ensure all external grates are easily removed and free from obstruction. If possible, keep pets inside while the works are being completed. 

Please keep your toilet lids down, in case of negative pressure. Negative pressure may draw the water from toilets or drains back into the sewer mains. If this should happen, flush your toilets and drains with water to prevent odour from escaping. 

It is important that you take care  regarding what goes down your drains. To prevent blockages only the 3Ps – pee, poo and paper – are allowed into the sewerage network.

Our obligations to you

Under the Utilities Act 2000, we must take all reasonable steps to minimise damage and restore land as soon as practicable to a condition similar to its condition before operations began. We are not required to restore land to a condition that would interfere with Icon Water's network or network facility.  

Talk to us  

For general enquiries talk to us on 02 6248 3111 (select option 3) between 8:30am - 5:00pm Monday to Friday, or email us at any time. In the event of a fault or emergency please call 02 6248 3111 (option 1).

We thank you for your patience and cooperation throughout this important program of works. Please respect our assets and staff so that we can continue to provide the highest quality water and sewerage services to the ACT.