As a resident or visitor to Wolfville, you may have noticed intermittent sewer smells during the past month. Some of the odours can be attributed to the annual spreading of manure on our surrounding agricultural fields, but there have also been intermittent sewer smells coming from the sewer treatment plant (located on the north-east side of town along the dykes).
Over the past year, extensive upgrades have been completed at the plant in order to improve treatment levels and the quality of effluent being discharged. In order to complete the upgrades, the aeration system for the lagoons had to be turned off over the winter and early spring. The aeration system was switched back on in May, and although the dissolved oxygen levels in the lagoons are now improving, it has also led to increased odours as the biological process restarts to the way the plant is designed.
The odours are improving and are expected to dissipate over the coming weeks. Staff continue to monitor the situation on a daily basis, while making the necessary changes to transition out of this phase as quickly as possible.