A sewage pump station in south Nanaimo will undergo some upgrades when repairs are made to a damaged sewerage line in the Haliburton Street area. (CHRIS BUSH/The News Bulletin)

RDN shelling out $200K for pipe and pump station upgrade design

Leak discovered at sewage pipe in Haliburton Street area in March 2017

Regional District of Nanaimo will spend close to $200,000 on engineering plans as it prepares to fix damaged sewer pipe and upgrade a pump station in south Nanaimo.

Force main pipe stemming from the Chase River pump station and installed in 1980 was estimated to last between 60 to 80 years, according to an RDN staff report, but major leaks were discovered in the Haliburton Street area in March 2017 and emergency repairs were performed. The pump station also needs upgrades and the RDN board awarded a $199,682 contract to CH2M Hill Canada Limited to prepare a detailed design for the project.

The pipes are made of ductile iron and severe corrosion was found at the lower part, which staff said was likely caused by “gravel and grit.” According to Sean De Pol, RDN director of water and wastewater services, grit gets into wastewater systems through various sources and the pump station also accepts septic tank sewage, another source of grit. Although it is separated at the pump station, some gets through.

“The force mains they’re epoxy coated … and over time with stones sort of bouncing along the pipe, it can be quite abrasive and it removes that epoxy coating on the outside and then can ultimately be an area of corrosion and an area that will start to deteriorate,” said De Pol.

In addition to pipe replacement, plans will include enhanced rock and gravel removal at the pump station, expansion of the force main valve chamber, septic reception upgrades and replacement of motor control.

“The motor control is the electrical component,” said De Pol. “We run our pumps at varying speeds and rotating reuse of each pump depending upon the flows, so we run a lead pump and then we put that off service and we run another one, so there is an electronic motor control system that is aging and needs to be upgraded and components replaced. It’s what allows us to run that pump station in an optimal way.”

Design work is expected to be completed in 2018 with tendering and construction anticipated for 2019.

There is currently $1.7 million in the RDN’s current budget for construction and should the cost exceed that, De Pol said staff will seek further direction from the board.

“We do our budgets typically September/October for 2019, when construction will be underway … and we will be examining what the budget is,” said De Pol. “We’ll either change it as part of that budget process, which I don’t think will happen just purely on the timing, so then the other way we get picked up is we’d carry the $1.7 million and then we would tender the project and at time of award, we would note the new budget amount that would either be less or more.

“If it’s more we would make a recommendation accordingly, either to award or for us to go back to the drawing board and see if we can make the project smaller or less.”



reporter@nanaimobulletin.com

Like us on Facebook and follow Karl on Twitter and Instagram

Just Posted

New champion takes over bathtub race title

Trevor Short wins the Great International World Championship Bathtub Race in Nanaimo

Editorial: Be a fan of our unofficial civic sport, bathtubbing

Nanaimo’ Bathtub Weekend starts today, July 20, and culminates with the great race Sunday, July 22

Lantzville politicians deny claims made against them in lawsuit

Civil lawsuit involves an accounting business sold by Colin and Denise Haime

Accident in Nanaimo after artillery gun rolls down hill and damages taxi

Accident happened in Comox Road and Terminal Avenue area Saturday afternoon

Lantzville teen breaks BC Summer Games race walking record

Zone 6 athlete Olivia Lundman crossed finish line with ease, to loud cheers in Cowichan

BC Wildfire merges two Okanagan wildfires

Large plume of smoke seen over the fire was a controlled event

Beefs & Bouquets, July 19

To submit a beef or a bouquet to the Nanaimo News Bulletin, e-mail bulletinboard@nanaimobulletin.com

Sr. A Timbermen can clinch a berth in WLA playoffs

A Burnaby loss tonight or a Nanaimo win on Sunday would put the T-men in the post-season

Final arguments made at tent city hearing, court won’t rule immediately

Lawyer says City of Nanaimo is concerned occupants would consume hand sanitizer

Government sets full-time salary range for Justin Trudeau’s nanny

At its top range, the order works out to a rate of $21.79 per hour, assuming a 40-hour work week

Lower Mainland teams battle for baseball gold at BC Games

Vancouver Coastal squeaked out a 3-2 win against Fraser Valley

The Northern Secwepemc te Qelmucw people signed an agreement-in-principle with the B.C. government

The signing ceremony, at the Eliza Archie Memorial School, was 25 years in the making

Canada to resettle dozens of White Helmets and their families from Syria

There are fears the volunteers would become a target for government troops

Francesco Molinari wins British Open at Carnoustie

It is his first win at a major and the first by an Italian

Most Read