- 2013 Wastewater overflow information for Christchurch [PDF, 114 KB]
- CRC131405 Wastewater overflows information - unavoidable overflows as a result of earthquake-repair work [PDF, 568 KB] July 2013
A wastewater overflow is when wastewater flows out from the pipes or manholes from where it is usually contained into a stream, river or the sea. This is not normal and preventing this from occurring is a high priority for the Council.
Wastewater overflow details are listed below. Information will be updated as soon as possible, and once discharge has ceased. Pollution may take up to two days to completely clear after the discharge has ceased.
|Discharge began||Discharge ceased||Overflow location||Waterway affected||Cause|
|1/3/2018 11:30||1/3/2018 12:00||Bayview Place, Cass Bay||Lyttelton Harbour||Blocked Sewer|
|23/2/2018 06:00||23/2/2018 10:00||Jetty Road, Governors Bay||Lyttelton Harbour||Blocked Sewer|
|22/2/2018 09:00||22/2/2018 09:30||90 Grants Road||Papanui Creek to Dudley Creek to Avon River||Blocked Sewer|
|21/2/2018||21/2/2018||PS616, 259 Beach Road||Akaroa Harbour||High Rainfall|
|20/2/2018 23:00||21/2/2018||PS615, Fire Station||Akaroa Harbour||High Rainfall|
|20/2/2018 23:00||21/2/2018 02:00||PS20/1, Corner of Locarno St and Fifield Terrace||Heathcote River||High Rainfall|
|20/2/2018 23:00||21/2/2018 02:00||PS112/1, 47 Kibblewhite Street||Avon River||High Rainfall|
|21/2/2018 01:00||21/2/2018 10:00||PS37/1 178a Estuary Road||Avon Heathcote Estuary||High Rainfall|
|20/2/2018 21:00||20/2/2018 23:30||P1/21 Grassmere, 133 Paparoa Street||Avon River||High Rainfall|
|20/2/2018 21:00||21/2/2018 04:00||P6/3 Thames, 70 Thames St||Avon River||High Rainfall|
|20/2/2018 23:00||21/2/2018 05:00||Oakford Close/Deans Ave||Riccarton Stream/Avon River||High Rainfall|
|20/2/2018 22:30||21/2/2018 02:00||PS13/1 Tilford, 12 Richardson Terrace||Heathcote River||High Rainfall|
|20/2/2018 22:30||20/2/2018 23:30||PS130/1, 5 Lomond Place||Linwood Canal/Avon Heathcote Estuary||Pump Fault and High Rainfall|
|20/2/2018 22:00||20/2/2018 23:59||PS20/4 Fisher Ave||Heathcote River||High Rainfall|
|20/2/2018 22:00||21/2/2018 02:00||PS31/1 Barnet Park||Avon Heathcote Estuary||High Rainfall|
|20/2/2018 20:00||20/2/2018 02:30||PS1/15 St Andrews, Corner Shrewsbury St and Carlton Mill Rd||Avon River||High Rainfall|
|6/1/2018 10:53||6/1/2018 14:00||PS616 The Glen, Akaroa||Akaroa Harbour||High tide flooded sewer|
|4/1/2018 09:00||4/1/2018 15:00||Kilmore Street Bridge||Avon River||Pipe Fault|
|2/1/2018 10:00||3/1/2018 11:00||229 Beach Road, Akaroa||Akaroa Harbour||Pipe Fault|
|Overflow location||Waterway affected||Possible cause|
|Lyttelton Wastewater Treatment Plant Outfall||Lyttelton Harbour||
Intermittent overloading of the reticulation during rainfall. Possible cause is cross-connection between stormwater and wastewater. A project is ongoing to reduce inflow and infiltration in the Lyttelton reticulation.
NB: All overflow incidents will be recorded in the table above.