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Sewer odours in North Lethbridge

​On October 27, the Wastewater Treatment Plant (WWTP) suffered a digester process upset which resulted in odourous material being deposited into the plant lagoons located behind the Peenaquim ball diamonds.

Staff have been taking every step possible to reduce odours being generated at the lagoons, including enhanced daily lagoon and digester monitoring, and a number of strategies are being deployed to reprocess, chemically treat and remove the odourous material.

Residents should expect a general reduction in odours during the winter months as the lagoons freeze over. In the spring, the odours may return but should be less intense. Any remaining odourous material will be removed during the spring sludge haul. The digesters continue to recover, which will eliminate further addition of odourous material to the lagoons.

The WWTP staff apologizes for the inconvenience and appreciates your continued patience on this matter. 


For Public Inquiries:

Call 311 |  Monday to Friday, 8 a.m. to 4:30 p.m.