Repairs are underway on the Grohman Narrows wastewater force main after the City of Nelson was alerted to two leaks.
The city said one leak has already been successfully repaired, but another was identified on Oct. 6.
A remotely operated vehicle has been deployed to locate it. Dive crews will be dispatched soon to complete repairs.
“The City of Nelson’s proactive safeguards and contingency planning ensure minimal environmental impact while long‑term infrastructure upgrades continue,” said the city in a statement.
Water samples are being taken from the Kootenay River every other day for testing. So far, results are all within regular parameters and do not pose a risk to residents.
The city has reported the incident to provincial authorities, ensuring compliance with environmental regulations. It’s also maintained communication with the province.
The force main is monitored 24 hours a day by an automated system that triggers alarms if flows change unexpectedly. Professional divers also conduct inspections of both the pipe and the surrounding riverbed biannually.
“These inspections not only assess the condition of the infrastructure but also ensure the surrounding aquatic environment remains protected,” said the city.
While small leaks are consistent with natural wear over time, the city said the incident highlights why replacing aging infrastructure is a priority.
“The city’s proactive planning and rapid‑response protocols ensure that leaks are addressed swiftly and responsibly. Environmental protections are in place and long‑term infrastructure renewal is already underway.”
Replacing the city’s 1971 wastewater treatment plant is already in the works.
Prior to 2021, the force main only required one major repair. However, since the fall of 2021 there have been six small leaks identified, all of which were repaired and reported to the province.
In 2023, the city launched a comprehensive replacement plan. It’s also applied for B.C.’s 2025 Strategic Priorities Fund seeking $7 million toward the estimated $11.6 million cost of replacing the force main.
Project designs are expected to be completed in 2026, with a goal of beginning construction in 2027.
A survey gathering feedback launched last month and is open until Oct. 31. It can be found here.Â
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