Recent wastewater overflow details are listed below. Information will be updated as discharge is confirmed ceased and pollution may take up to 2 days to clear completely.

Discharge began Discharge ceased Overflow location Waterway affected Cause
18/4/2017 14:27   27 Dyers Pass Road Heathcote River Damaged Pipe
14/4/2017 06:30 15/4/2017 7:00 Hagley Park - Deans Avenue Avon River High Rainfall
14/4/2017 08:50 14/4/2017 14:00 PS615 Akaroa Fire Station Akaroa Harbour High Rainfall
14/4/2017 08:50 14/4/2017 12:00 Duvauchelle Wastewater Treatment Plant Akaroa Harbour High Rainfall
14/4/2017 08:00 14/4/2017 16:00 Diamond Harbour Wastewater Treatment Plant Lyttelton Harbour High Rainfall
14/4/2017 07:30 14/4/2017 16:00 Lyttelton Wastewater Treatment Plant Lyttelton Harbour High Rainfall
6/4/2017 13:30 6/4/2017 23:30 PS1/11 - 317 River Road Avon River High Rainfall
6/4/2017 14:00 7/4/2017 0:00 PS22/1 Eastern Terrace Heathcote River High Rainfall
6/4/2017 12:00 7/4/2017 0:00 PS20/3 Tennyson Street Heathcote River High Rainfall
6/4/2017 12:00 7/4/2017 0:00 PS20/5 Fisher Avenue Heathcote River High Rainfall
6/4/2017 12:00 6/4/2017 21:00 Lyttelton Wastewater Treatment Plant Lyttelton Harbour High Rainfall
6/4/2017 13:30  7/4/2017 0:00 Diamond Harbour Wastewater Treatment Plant Lyttelton Harbour High Rainfall
6/4/2017 02:30 6/4/2017 06:00 Akaroa Fire Station, Akaroa Akaroa Harbour High Rainfall
23/2/2017 09:30 23/2/2017 10:30 Akaroa Fire Station, Akaroa Akaroa Harbour Blocked Sewer
5/2/2017 19:00 5/2/2017 23:00 22 Marine Drive, Diamond Harbour Lyttelton Harbour Blocked Sewer
25/10/2016 16:00 25/10/2016 18:00 Lake Kate Sheppard adjacent to Anzac Drive Avon River Burst Water main flowed into wastewater overloading the system.
27/8/2016 09:30  27/8/2016 10:15 Diamond Harbour Wastewater Treatment Plant Lyttelton Harbour High Rainfall
26/8/2016 15:15 26/8/2016 15:45 Lyttelton Wastewater Treatment Plant Outfall Lyttelton Harbour High Rainfall
19/7/2016 13:00 19/7/2016 13:20 81 Cashmere Road Heathcote River Blocked Sewer
18/7/2016 11:30 18/7/2016 12:40 475 New Brighton Road Avon River Blocked Sewer
6/7/2016 11:10 6/7/2016 12:30 2 Bengal Drive Heathcote River Blocked Sewer
30/6/2016 08:00 30/6/2016 12:30 Ferrymead Bridge Heathcote River/Estuary Blocked Sewer
2/6/2016 10:00 2/6/2016 13:15 Cnr McCormacks Bay Road and Soleares Ave Avon Heathcote Estuary Blocked Sewer Main
30/5/2016 22:29 31/5/2016 00:15 Lyttelton Wastewater Treatment Plant Outfall Lyttelton Harbour High Rainfall
28/5/2016 06:55 28/5/2016 09:15 Lyttelton Wastewater Treatment Plant Outfall Lyttelton Harbour High Rainfall
23/5/2016 03:40  23/5/2016 07:40 Lyttelton Wastewater Treatment Plant Outfall Lyttelton Harbour High Rainfall
21/5/2016 19:30  21/5/2016 20:45 Duvauchelle Wastewater Treatment Plant Outfall Akaroa Harbour Power Cut

21/5/2016 16:00

21/5/2016 17:24 Lyttelton Wastewater Treatment Plant Outfall Lyttelton Harbour High Rainfall

13/4/2016 16:03

13/4/2016 18:28 3 O'Halloran Drive, Halswell Halswell River Broken pressure main

7/4/2016 07:30

7/4/2016 08:40 Gould Cresent, Woolston Heathcote River  Contractor works failure

3/4/2016 12:30

3/4/2016 13:00 Bayview Cresent, Duvauchelle Akaroa Harbour Damaged Pipe

16/3/2016 06:40

16/3/2016 10:00 303 Cambridge Terrace Avon River Excessive rainfall intrusion

25/2/2016 14:30

25/2/2016 15:00 Cnr Sloane and Centaurus Road Heathcote River Blocked Sewer

18/2/2016 02:00

18/2/2016 04:00 Lyttelton Wastewater Treatment Plant Lyttelton Harbour High Rainfall

14/02/2016 12:30

14/02/2016 13:30 277 Hoonhay Rd Heathcote River Wastewater main Blockage

12/02/2016 10:40

12/02/2016 11:40 Diamond Harbour Wastewater Treatment Plant Lyttelton Harbour Overflow from Manhole

3/2/2016 12:00 noon

3/2/2016 13:00 55 Cashmere Road Heathcote River Blocked Sewer

19/1/2016 09:43

19/1/16 10:45 Corner Major Aitken Dr and Centaurus Road Heathcote River Blocked Sewer

29/12/2015 18:30

29/12/2015 21:00 Corner of Owles Terrace and Hardy Street Avon River Temporary overland sewer pipe split

31/10/2015 17:30

31/10/2015 11 Coppell Place, Halswell Heathcote River Blocked Manhole
23/10/2015 17:30 23/10/2015 19:00 10 Dyers Pass Road Heathcote River Blocked Sewer
13/10/2015 07:14 13/10/2015 12:30 Akaroa Wastewater Treatment Plant Akaroa Harbour UV treatment fault
13/10/2015 07:30  13/10/2015 11:00 9 Richmond Hill Road Sumner Beach Blocked Sewer
10/10/2015 10:16 10/10/2015 11:30 Diamond Harbour Wastewater Treatment Plant Lyttelton Harbour Power Outage disrupted UV treatment
10/10/2015 10:16 10/10/2015 11:30 Governors Bay Wastewater Treatment Plant Lyttelton Harbour Power Outage disrupted UV treatment
10/10/2015 10:16 10/10/2015 11:30 Duvauchelle Wastewater Treatment Plant Akaroa Harbour Power Outage disrupted UV treatment
10/10/2015 10:16 10/10/2015 14:10 Akaroa Fire Station Akaroa Harbour Power Outage stopped Pump Station 615
23/09/2015 14:00  23/09/15 15:50 174 Clarence Street Avon River Excessive rainfall intrusion
22/08/2015 time unknown 23/08/2015 13:00 71 Cashmere Road Heathcote River Blocked sewer
13/08/2015 09:00 13/08/2015 11:15 Whitewash Head Rd and Scarborough Hill Rd    Sumner Beach Blocked sewer
24/07/2015 09:00 24/7/15 09:30 26 Centaurus Road Heathcote River Sewer blockage on Kidson Terrace
18/07/2015 14:30 20/7/2015 10:00 Duvauchelles Wastewater Treatment Plant  Akaroa Harbour Failure of UV treatment equipment
06/07/2015 14:00  06/07/2015 23:59 Kilmore Street Bridge Avon River Pipe failure
20/06/2015 13:44 20/06/2015 14:30 49 Beach Road Akaroa Harbour Pipe blockage
19/06/2015 02:00 19/06/2015 09:00 Diamond Harbour Wastewater Treatment Plant Lyttelton Harbour Excessive rainfall intrusion
19/06/2015 02:00 19/06/2015 09:00 Lyttelton Waste Water Lyttelton Harbour Excessive rainfall intrusion
04/06/2015 04:00 04/06/2015 16:00 Diamond Harbour Wastewater Treatment Plant Lyttelton Harbour Excessive rainfall intrusion
04/06/2015 10:00 04/06/2015 15:00 21 Ranui Street Diamond Harbour  Lyttelton Harbour Excessive rainfall intrusion
04/06/2015 14:00 04/06/2015 14:30 Lyttelton Wastewater Treatment Plant Lyttelton Harbour Excessive rainfall intrusion
04/06/2015 10:37 04/06/2015 13:16 Fisher Ave and Eastern Terrace Heathcote River Excessive rainfall intrusion
23/04/2015 07:30 23/04/2015 08:45 Corner of Churchill St and Cambridge Tce Avon River Blocked sewer
15/04/2015 14:30 15/04/2015 14:40 120 Scarborough Hill Road Lyttelton Harbour Sewer overflow from manhole
18/03/2015 08:00 18/03/2015 08:15 13 Clifton Terrace Avon Heathcote Estuary/Sumner Beach Blocked sewer main
09/03/2015 16:50 09/03/2015 17:20 38 Park Terrace Avon River Overflow from manhole
08/02/2015 09:50 08/02/2015 11:30 47 Rue Balguerie Akaroa Harbour Contractor works failure
06/02/2015 10:05 06/02/2015 11:00 46 Yardley Street Avon River Blocked sewer main