Automatic H2S alarm in the Waste Water purification

Incident
Occurence
Automatic H2S alarm in the Waste Water purification
Date
June 1, 2021 - 16:15
Location
Waste Water purification
Category
V4 - deployment emergency plan
Result
Deployment of company emergency plan and turnout by municipal fire brigade with sirens and flashing lights at the location.
Effect
Possible noise nuisance due to arrival of the fire brigade.
Complaints
None.
Action
The possible cause of the release of H2S gas is due to the warm weather, which causes residual sludge to evaporate from the funnels of the sampling points. These have been flushed, then no more notifications were received.