Local Govt | National News Video | Parliament Headlines | Politics Headlines | Search

 


Devonport sewer upgrade reducing overflows

Devonport sewer upgrade reducing overflows

North Shore City ' s five-year, $14 million investment in repairing or replacing Devonport ' s leaky sewers looks set to pay off with tests showing the extensive work is halving the amount of rainwater leaking into the pipes and far fewer sewage overflows expected as a result.

The Devonport project has been undertaken as part of Project CARE, North Shore City ' s $210 million, 20-year programme of work to improve beach water quality. Back in 1998, the council set a target of reducing wet weather sewage overflows events from approximately 12 to an average of two a year.

North Shore City Council ' s works and environment committee chairperson, Joel Cayford, says that to date all the public sewers identified as needing repair have been completed.

" Results show that the amount of stormwater leaking into the Devonport wastewater network has been reduced by 51 per cent, a significant milestone in Project CARE.

" Approximately half of the private property drains needing repair, that is 721 out of a total of 1439, are still to be upgraded by property owners, " Councillor Cayford says.

" The Devonport project was our city ' s priority because leakage of stormwater into the pipes in Devonport overloaded the wastewater network (to the Rosedale wastewater treatment plant), all the way to Wairau and contributed to overflows on Takapuna and Milford beaches.

" Keeping rainwater out of Devonport ' s sewers is a work-in-progress which will probably never finish. But once the remaining private sewer lines are brought up to standard and through regular inspections to identify new leaks, we will have a drainage system that is the best we can reasonably achieve using available technologies, " says Joel Cayford.

The council ' s general manager of water services, Geoff Mason, says once the remaining private drains were repaired, further reductions in the amount of stormwater infiltrating sewers could be expected.

Mr Mason says the work began with detecting leaks using smoke, dye or closed circuit television. Leakage into, or out of, the pipes was repaired by lining the pipes, inserting a sealant, or digging up the pipes and replacing them.

" The repair and renewal programme in Devonport together with wastewater storage facilities at Northboro and Torpedo Bay, and increased capacity in the network provided by the Birkley Tunnel in Bayswater, are all contributing to the achievement of our Project CARE objectives.

" The improvements are also projected to provide sufficient capacity for Devonport ' s population through to at least the year 2050, " says Geoff Mason.

The total cost of the Devonport sewer repair and renewal programme was approximately $14 million. The sewer repair work is ongoing and the council ' s attention is currently focused on detecting leaks in Hauraki, Belmont and older parts of Northcote.

Repair and renewal work in Hauraki and Belmont is expected to be finished by June next year. Detecting leaks in parts of Takapuna and Milford will start later this year. Work will also start in older Northcote next year.


© Scoop Media

 
 
 
 
 
Parliament Headlines | Politics Headlines | Regional Headlines

 

Also, Loan Interest: Productivity Commission On Tertiary Education

Key recommendations include better quality control; making it easier for students to transfer between courses; abolishing University Entrance; enabling tertiary institutions to own and control their assets; making it easier for new providers to enter the system; and facilitating more and faster innovation by tertiary education providers... More>>

ALSO:

Higher Payments: Wellington Regional Council Becomes A Living Wage Employer

Councillor Sue Kedgley said she was delighted that the Wellington Regional Council unanimously adopted her motion to become a Living Wage employer, making it the first regional council in New Zealand to do so. More>>

ALSO:

Scoop Images:
Dame Patsy Reddy Sworn In As Governor-General

This morning Dame Patsy Reddy was sworn in as the New Zealand Realm’s 21st Governor-General. The ceremony began with a pōwhiri to welcome Dame Patsy and her husband Sir David Gascoigne to Parliament. More>>

ALSO:

Ruataniwha: DOC, Hawke's Bay Council Developer Take Supreme Court Appeal

The Department of Conservation and Hawke's Bay Regional Investment Company (HBRIC) are appealing to the Supreme Court over a conservation land swap which the Court of Appeal halted. More>>

ALSO:

With NZ's Marama Davidson: Women’s Flotilla Leaves Sicily – Heading For Gaza

Women representing 13 countries spanning five continents began their journey yesterday on Zaytouna-Oliva to the shores of Gaza, which has been under blockade since 2007. On board are a Nobel Peace Laureate, three parliamentarians, a decorated US diplomat, journalists, an Olympic athlete, and a physician. A list of the women with their background can be found here. More>>

Gordon Campbell: On The Key Style Of Crisis Management

At Monday’s post Cabinet press conference Key was in his finest wide- eyed “Problem? What problem?” mode. No, there wasn’t really a problem that top MPI officials had been at odds with each other over the meaning of the fisheries policy and how that policy should be pursued... More>>

ALSO:

Mt Roskill: Greens Will Not Stand In Likely Post-Goff By-Election

“The Green Party’s priority is changing the Government in 2017, and as part of that we’ve decided that we won’t stand a candidate in the probable Mt Roskill by-election... This decision shows the Memorandum of Understanding between Labour and the Green Party is working." More>>

ALSO:

Get More From Scoop

 

LATEST HEADLINES

 
 
 
 
 
 
 
 
 
Regional
Search Scoop  
 
 
Powered by Vodafone
NZ independent news