Bell Island WWTP Odour Mitigation

BPO was engaged by Bell Island WWTP to provide a practical odour risk assessment after a significant period of complaints. Prior to the practical review being undertaken the WWTP was looking at approximately $750,000 worth of potential  investigations, many of which were of unknown effectiveness.


BPO assessed each potential odour source assigning them a risk level and giving each a priority. Concept solutions where provided for each significant odour source.  A focus was on solutions that could be self-performed by the client.


Subsequently the WWTP management have been able to work through each mitigation measure systematically, resulting in a reduction in odour events without wasting resources.

89 Colombo Street

PO Box 5067, Frankton, Hamilton, New Zealand

570 Hillside Road,

Dunedin, New Zealand



T: +64 7 858 2101


T: +64 3 951 0240

AUS Free 1 800 751 806


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