This is an HTML version of an attachment to the Official Information request 'Porirua Treatment Plant'.
ATTACHMENT 2:  Porirua WWTP Discharge Events
Note:
 - Resource Consent WGN 980083[24384] came into effect on 6 July 2000
 - Porirua Treatment Plant Commissioned 1988
Finish (Date + 
Duration 
Start (Date + time)
Volume Treated 
Total Daily 
Total Daily 
Total 
time)
hrs/mins
Bypass as %  
Date
(dd/mm/yy 
(dd/mm/yy 
(Automatical y  During Bypass 
Influent Flow 
Treated Flow 
Volume of 
Consented
Comments
Monitoring Results
of Daily
hh:mm)
hh:mm)
populated)
(m³)
(m³)
(m³)
Bypass (m³)
14 May 2012
14/05/2012 0:00
15/05/2012 0:01
24hr 01m
N/A
N/A
N/A
1935.3
N/A
N
unknown
unknown
19 Jun 2012
19/06/2012 19:17
21/06/2012 14:54
43hr 37m
N/A
N/A
N/A
1655.1
N/A
N
unknown
unknown
18 Mar 2013
18/03/2013 1:51
19/03/2013 13:02
35hr 11m
N/A
N/A
N/A
2411
N
unknown
unknown
Discharge of sludge from clarifier. Not rainfal  event but GWRC notified 
01 Dec 2014
1/12/2014 21:30
2/12/2014 3:10
05hr 40m
N/A
N/A
N/A
N/A
N/A
N
No sampling initiated.
as elevated BOD, SS and FC results
Discharge of sludge from clarifier. Not rainfal  event but GWRC notified 
07 Jan 2015
7/01/2015 12:15
7/01/2015 13:30
01hr 15m
N/A
N/A
N/A
N/A
N/A
N
No sampling initiated.
as elevated BOD, SS and FC results
Discharge of sludge from clarifier. Not rainfal  event but GWRC notified 
15 Jan 2015
15/01/2015 10:04
15/01/2015 11:30
01hr 26m
N/A
N/A
N/A
N/A
N/A
N
No sampling initiated.
as elevated BOD, SS and FC results
Discharge of sludge from clarifier. Not rainfal  event but GWRC notified 
05 Feb 2015
5/02/2015 9:49
5/02/2015 10:45
00hr 56m
N/A
N/A
N/A
N/A
N/A
N
No sampling initiated.
as elevated BOD, SS and FC results
Discharge of sludge from clarifier. Not rainfal  event but GWRC notified 
18 Feb 2015
18/02/2015 22:40
18/02/2015 23:40
01hr 00m
N/A
N/A
N/A
N/A
N/A
N
No sampling initiated.
as elevated BOD, SS and FC results
Discharge of sludge from clarifier. Not rainfal  event but GWRC notified 
03 Mar 2015
3/03/2015 11:54
3/03/2015 12:12
00hr 18m
N/A
N/A
N/A
N/A
N/A
N
No sampling initiated.
as elevated BOD, SS and FC results
Discharge of sludge from clarifier. Not rainfal  event but GWRC notified 
07 Mar 2015
7/03/2015 0:00
7/03/2015 9:15
09hr 15m
N/A
N/A
N/A
N/A
N/A
N
No sampling initiated.
as elevated BOD, SS and FC results
Discharge of sludge from clarifier. Not rainfal  event but GWRC notified 
08 Mar 2015
8/03/2015 10:00
8/03/2015 10:03
00hr 03m
N/A
N/A
N/A
N/A
N/A
N
No sampling initiated.
as elevated BOD, SS and FC results
Discharge of sludge from clarifier. Not rainfal  event but GWRC notified 
07 Apr 2015
7/04/2015 0:00
7/04/2015 9:15
09hr 15m
17,115
34,740
32,588
2927
8.42%
N
No sampling initiated.
as elevated BOD, SS and FC results
Flows into the plant did not exceed 720l/s during the time of bypassing 
and from what we saw visually we estimate 5l/s was bypassing. I have  No sampling required, no 
02 Dec 2015
2/12/2015 13:49
2/12/2015 13:54
00hr 05m
444
22984.9
23552.4
0
0.00%
N
contacted Phil Garrity and spoken with Eddie Carson onsite as this is an 
signs erected
issue that needs investigating ASAP. We need to investigate why the 
treatment plant began bypassing at such a low level of flow
High flows into the Porirua WWTP causing issues with elevated sludge  Samples undertaken and 
27 Jun 2016
27/06/2016 8:00
27/06/2016 12:00
04hr 00m
N/A
N/A
N/A
N/A
N/A
N
levels. #1 clarifier carried sludge over during peak inflow
signage erected
Samples undertaken and 
06 Oct 2018
6/10/2018 12:15
6/10/2018 15:00
02hr 45m
N/A
N/A
N/A
4,260
N/A
N
Sludge carry over during dry weather due to plant malfunction. 
signage erected
Note: The flow rates for the wastewater treatment plant could not be obtained for some of the sludge carry-over periods. This was due to Programmable Logic Control er issues during these periods. That is why the values are N/A.

Porirua Network Discharge Events
Note:
- These are al  unconsented discharges.
Finish (Date + 
Total 
Start (Date + time)
(dd/mm/yy 
time)
Duration 
Volume of 
(dd/mm/yy 
(hrs/mins)
Location of Discharge
Cause of Discharge
Comments & Actions Taken
hh:mm)
Discharged 
hh:mm)
(m³)
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 7/4/15. This is most likely due to the heavy rainfal  event preceding the 
7/04/2015 17:54
7/04/2015 19:18
01hr 24m
 PS31 Vel a St
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 7/4/15. This is most likely due to the heavy rainfal  event preceding the 
7/04/2015 19:04
7/04/2015 20:04
01hr 00m
 PS02 Postgate
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 7/4/15. This is most likely due to the heavy rainfal  event preceding the 
7/04/2015 18:20
7/04/2015 22:06
03hr 46m
 PS39 Brandon St
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 7/4/15. This is most likely due to the heavy rainfal  event preceding the 
7/04/2015 19:12
8/04/2015 6:56
11hr 44m
 PS38 The Cottage
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 27/4/15. This is most likely due to the heavy rainfal  event preceding the 
27/04/2015 22:55
28/04/2015 7:55
09hr 00m
 PS38 The Cottage
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.
A cal  was logged with the PCC Cal  Centre at 10pm on 28/7/15. This request was passed onto the PCC Work Business Unit who is in charge of dealing with these 
28/04/2015 22:00
29/04/2015 9:00
11hr 00m
11 Roiri Way
Unknown
Blocked sewer main
incidents at 8am on 29/7/15. The PCC Work Business Unit rodded the line and root cut to restore service to the line. The overflow has stopped since. The delay in 
response times is being investigated by Porirua City Council.
A cal  was logged with the PCC Cal  Centre at 10pm on 28/7/15. This request was passed onto the PCC Work Business Unit who is in charge of dealing with these 
28/04/2015 22:00
29/04/2015 9:00
11hr 00m
11 Roiri Way
Unknown
Blocked sewer main
incidents at 8am on 29/7/15. The PCC Work Business Unit rodded the line and root cut to restore service to the line. The overflow has stopped since. The delay in 
response times is being investigated by Porirua City Council.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 12/5/15. This is most likely due to the heavy rainfal  event preceding the 
12/05/2015 0:18
12/05/2015 1:15
00hr 57m
 PS31 Vel a St
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 12/5/15. This is most likely due to the heavy rainfal  event preceding the 
12/05/2015 0:48
12/05/2015 1:24
00hr 36m
 PS Onepoto
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 12/5/15. This is most likely due to the heavy rainfal  event preceding the 
12/05/2015 0:41
12/05/2015 1:37
00hr 56m
 PS39 Brandon St
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 14/5/15. This is most likely due to the heavy rainfal  event preceding the 
14/05/2015 7:33
14/05/2015 9:22
01hr 49m
 PS Browns Bay
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 14/5/15. This is most likely due to the heavy rainfal  event preceding the 
14/05/2015 9:49
14/05/2015 10:10
00hr 21m
Moana Rd Pump Station
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 14/5/15. This is most likely due to the heavy rainfal  event preceding the 
14/05/2015 10:09
14/05/2015 10:57
00hr 48m
Steyne Ave Pump Station
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 14/5/15. This is most likely due to the heavy rainfal  event preceding the 
14/05/2015 6:49
14/05/2015 11:03
04hr 14m
 PS Te Parip Rd
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 14/5/15. This is most likely due to the heavy rainfal  event preceding the 
14/05/2015 7:12
14/05/2015 14:51
07hr 39m
Plimmerton Boat Club Pump Station Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 14/5/15. This is most likely due to the heavy rainfal  event preceding the 
14/05/2015 8:37
14/05/2015 15:11
06hr 34m
 PS The Portage
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 14/5/15. This is most likely due to the heavy rainfal  event preceding the 
14/05/2015 12:54
14/05/2015 15:11
02hr 17m
Broora Cres Pump Station 
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 14/5/15. This is most likely due to the heavy rainfal  event preceding the 
14/05/2015 6:51
14/05/2015 21:50
14hr 59m
 PS Wairaka Rd
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 14/5/15. This is most likely due to the heavy rainfal  event preceding the 
14/05/2015 7:02
14/05/2015 23:02
16hr 00m
 PS02 Postgate
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 14/5/15. This is most likely due to the heavy rainfal  event preceding the 
14/05/2015 8:22
14/05/2015 23:07
14hr 45m
 PS31 Vel a St
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 14/5/15. This is most likely due to the heavy rainfal  event preceding the 
14/05/2015 11:17
14/05/2015 23:34
12hr 17m
 PS Onepoto
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 14/5/15. This is most likely due to the heavy rainfal  event preceding the 
14/05/2015 7:19
15/05/2015 12:43
29hr 24m
Station Rd Pump Station
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 14/5/15. This is most likely due to the heavy rainfal  event preceding the 
14/05/2015 7:18
15/05/2015 12:46
29hr 28m
 PS Duck Creek
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 14/5/15. This is most likely due to the heavy rainfal  event preceding the 
14/05/2015 6:55
15/05/2015 13:11
30hr 16m
Paremata Cres 6B
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 14/5/15. This is most likely due to the heavy rainfal  event preceding the 
14/05/2015 7:28
15/05/2015 13:43
30hr 15m
 PS38 The Cottage
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 14/5/15. This is most likely due to the heavy rainfal  event preceding the 
14/05/2015 6:38
15/05/2015 14:33
31hr 55m
 PS39 Brandon St
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 14/5/15. This is most likely due to the heavy rainfal  event preceding the 
14/05/2015 8:17
15/05/2015 14:37
30hr 20m
Rukutane Pt
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.

Finish (Date + 
Total 
Start (Date + time)
(dd/mm/yy 
time)
Duration 
Volume of 
(dd/mm/yy 
(hrs/mins)
Location of Discharge
Cause of Discharge
Comments & Actions Taken
hh:mm)
Discharged 
hh:mm)
(m³)
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 4/6/15. This is most likely due to the heavy rainfal  event preceding the 
3/06/2015 22:16
4/06/2015 1:46
03hr 30m
Seaview Pump Station
Unknown
Rainfal
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 10/07/15. This is most likely due to the heavy rainfal  event preceding the 
10/07/2015 10:30
10/07/2015 15:59
05hr 29m
 PS39 Brandon St
Unknown
Rainfal
potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 10/07/15. This is most likely due to the heavy rainfal  event preceding the 
10/07/2015 10:30
10/07/2015 15:59
05hr 29m
 PS39 Brandon St
Unknown
Rainfal
potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 19/7/15. This is most likely due to the heavy rainfal  event preceding the 
18/07/2015 22:30
19/07/2015 1:24
02hr 54m
 PS02 Postgate
Unknown
Rainfal
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 19/7/15. This is most likely due to the heavy rainfal  event preceding the 
18/07/2015 22:30
19/07/2015 1:24
02hr 54m
 PS02 Postgate
Unknown
Rainfal
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 18/07/15. This is most likely due to the heavy rainfal  event preceding the 
18/07/2015 23:02
19/07/2015 3:09
04hr 07m
 PS39 Brandon St
Unknown
Rainfal
potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 18/07/15. This is most likely due to the heavy rainfal  event preceding the 
18/07/2015 23:02
19/07/2015 3:09
04hr 07m
 PS39 Brandon St
Unknown
Rainfal
potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 19/7/15. This is most likely due to the heavy rainfal  event preceding the 
19/07/2015 0:05
19/07/2015 3:09
03hr 04m
 PS38 The Cottage
Unknown
Rainfal
potential overflow event. Further monitoring has indicated the levels 
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 19/7/15. This is most likely due to the heavy rainfal  event preceding the 
19/07/2015 0:05
19/07/2015 3:09
03hr 04m
 PS38 The Cottage
Unknown
Rainfal
potential overflow event. Further monitoring has indicated the levels 
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 06/08/15. This is most likely due to the heavy rainfal  event preceding the 
6/08/2015 9:06
6/08/2015 14:13
05hr 07m
 PS39 Brandon St
Unknown
Rainfal
potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 06/08/15. This is most likely due to the heavy rainfal  event preceding the 
6/08/2015 9:06
6/08/2015 14:13
05hr 07m
 PS39 Brandon St
Unknown
Rainfal
potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 06/08/15. This is most likely due to the heavy rainfal  event preceding the 
6/08/2015 7:59
6/08/2015 14:27
06hr 28m
 PS35 Rukutane Point
Unknown
Rainfal
potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 06/08/15. This is most likely due to the heavy rainfal  event preceding the 
6/08/2015 7:59
6/08/2015 14:27
06hr 28m
 PS35 Rukutane Point
Unknown
Rainfal
potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 06/08/15. This is most likely due to the heavy rainfal  event preceding the 
6/08/2015 10:48
6/08/2015 15:30
04hr 42m
 PS38 The Cottage
Unknown
Rainfal
potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 06/08/15. This is most likely due to the heavy rainfal  event preceding the 
6/08/2015 10:48
6/08/2015 15:30
04hr 42m
 PS38 The Cottage
Unknown
Rainfal
potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 11/08/15. This is most likely due to the heavy rainfal  event preceding the 
11/08/2015 6:04
11/08/2015 11:06
05hr 02m
 PS39 Brandon St
Unknown
Rainfal
potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 11/08/15. This is most likely due to the heavy rainfal  event preceding the 
11/08/2015 6:04
11/08/2015 11:06
05hr 02m
 PS39 Brandon St
Unknown
Rainfal
potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 11/08/15. This is most likely due to the heavy rainfal  event preceding the 
11/08/2015 5:51
11/08/2015 12:27
06hr 36m
 PS38 The Cottage
Unknown
Rainfal
potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 11/08/15. This is most likely due to the heavy rainfal  event preceding the 
11/08/2015 5:51
11/08/2015 12:27
06hr 36m
 PS38 The Cottage
Unknown
Rainfal
potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 10/08/15. This is most likely due to the heavy rainfal  event preceding the 
10/08/2015 21:27
11/08/2015 13:13
15hr 46m
 PS02 Postgate
Unknown
Rainfal
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 10/08/15. This is most likely due to the heavy rainfal  event preceding the 
10/08/2015 21:27
11/08/2015 13:13
15hr 46m
 PS02 Postgate
Unknown
Rainfal
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 10/09/15. This is most likely due to the heavy rainfal  event preceding the 
10/09/2015 21:08
11/09/2015 8:13
11hr 05m
 PS02 Postgate
Unknown
Rainfal
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 10/09/15. This is most likely due to the heavy rainfal  event preceding the 
10/09/2015 21:08
11/09/2015 8:13
11hr 05m
 PS02 Postgate
Unknown
Rainfal
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 21/09/15. This is most likely due to the heavy rainfal  event preceding the 
21/09/2015 21:25
22/09/2015 8:46
11hr 21m
 PS02 Postgate
Unknown
Rainfal
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 22/09/15. This is most likely due to the heavy rainfal  event preceding the 
22/09/2015 7:02
22/09/2015 8:46
01hr 44m
 PS39 Brandon St
Unknown
Rainfal
potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 21/09/15. This is most likely due to the heavy rainfal  event preceding the 
21/09/2015 22:09
22/09/2015 11:12
13hr 03m
 PS20 City Centre
Unknown
Rainfal
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 29/10/15. This is most likely due to the heavy rainfal  event preceding the 
29/10/2015 7:35
29/10/2015 8:17
00hr 42m
 PS39 Brandon St
Unknown
Rainfal
potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 29/10/15. This is most likely due to the heavy rainfal  event preceding the 
29/10/2015 7:10
29/10/2015 12:03
04hr 53m
 PS02 Postgate
Unknown
Rainfal
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 29/10/15. This is most likely due to the heavy rainfal  event preceding the 
29/10/2015 7:39
29/10/2015 12:27
04hr 48m
 PS38 The Cottage
Unknown
Rainfal
potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 2/04/16. This is most likely due to the heavy rainfal  event preceding the 
2/04/2016 20:14
3/04/2016 8:39
12hr 25m
 PS5 Ivy Bay
Unknown
Rainfal
potential overflow event. Further monitoring has indicated the levels have returned to normal.

Finish (Date + 
Total 
Start (Date + time)
(dd/mm/yy 
time)
Duration 
Volume of 
(dd/mm/yy 
(hrs/mins)
Location of Discharge
Cause of Discharge
Comments & Actions Taken
hh:mm)
Discharged 
hh:mm)
(m³)
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 5/5/16. This is most likely due to the heavy rainfal  event preceding the 
5/05/2016 10:06
5/05/2016 10:19
00hr 13m
 PS04 Seaview
Unknown
Rainfal
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 5/5/16. This is most likely due to the heavy rainfal  event preceding the 
5/05/2016 9:54
5/05/2016 13:13
03hr 19m
 PS15 Brora Crescent
Unknown
Rainfal
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 5/5/16. This is most likely due to the heavy rainfal  event preceding the 
5/05/2016 9:28
5/05/2016 13:48
04hr 20m
 PS31 Vel a St
Unknown
Rainfal
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 5/5/16. This is most likely due to the heavy rainfal  event preceding the 
5/05/2016 9:29
5/05/2016 14:10
04hr 41m
 PS32 Onepoto
Unknown
Rainfal
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 5/5/16. This is most likely due to the heavy rainfal  event preceding the 
5/05/2016 9:31
5/05/2016 14:46
05hr 15m
 PS20 City Centre
Unknown
Rainfal
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 5/5/16. This is most likely due to the heavy rainfal  event preceding the 
5/05/2016 9:27
5/05/2016 16:22
06hr 55m
 PS02 Postgate
Unknown
Rainfal
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 13/05/16. This is most likely due to the heavy rainfal  event preceding the 
13/05/2016 4:37
13/05/2016 7:38
03hr 01m
 PS31 Vel a St
Unknown
Power Outage
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 28/05/16. This is most likely due to the heavy rainfal  event preceding the 
28/05/2016 9:35
28/05/2016 12:23
02hr 48m
 PS32 Onepoto
Unknown
Rainfal
potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 28/05/16. This is most likely due to the heavy rainfal  event preceding the 
28/05/2016 9:08
28/05/2016 13:03
03hr 55m
 PS31 Vel a St
Unknown
Rainfal
potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 28/05/16. This is most likely due to the heavy rainfal  event preceding the 
28/05/2016 11:02
28/05/2016 13:32
02hr 30m
 PS38 The Cottage
Unknown
Rainfal
potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 28/05/16. This is most likely due to the heavy rainfal  event preceding the 
28/05/2016 6:56
28/05/2016 13:45
06hr 49m
 PS35 Rukutane Point
Unknown
Rainfal
potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 28/05/16. This is most likely due to the heavy rainfal  event preceding the 
28/05/2016 6:56
28/05/2016 15:11
08hr 15m
 PS20 City Centre
Unknown
Rainfal
potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 28/05/16. This is most likely due to the heavy rainfal  event preceding the 
28/05/2016 7:56
28/05/2016 16:30
08hr 34m
 PS39 Brandon St
Unknown
Rainfal
potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 12/6/16. This is most likely due to the heavy rainfal  event preceding the 
12/06/2016 18:25
12/06/2016 22:04
03hr 39m
 PS Duck Creek
Unknown
Rainfal
potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 12/6/16. This is most likely due to the heavy rainfal  event preceding the 
12/06/2016 19:39
12/06/2016 22:31
02hr 52m
 PS Station Rd
Unknown
Rainfal
potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 12/6/16. This is most likely due to the heavy rainfal  event preceding the 
12/06/2016 19:56
12/06/2016 23:42
03hr 46m
 PS39 Brandon St
Unknown
Rainfal
potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 12/6/16. This is most likely due to the heavy rainfal  event preceding the 
12/06/2016 17:23
13/06/2016 1:48
08hr 25m
 PS35 Rukutane Point
Unknown
Rainfal
potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 12/6/16. This is most likely due to the heavy rainfal  event preceding the 
12/06/2016 18:04
13/06/2016 9:54
15hr 50m
 PS20 City Centre
Unknown
Rainfal
potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 12/6/16. This is most likely due to the heavy rainfal  event preceding the 
12/06/2016 15:14
13/06/2016 12:22
21hr 08m
 PS02 Postgate
Unknown
Rainfal
potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 12/6/16. This is most likely due to the heavy rainfal  event preceding the 
12/06/2016 18:45
13/06/2016 12:22
17hr 37m
 PS32 Onepoto
Unknown
Rainfal
potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 12/6/16. This is most likely due to the heavy rainfal  event preceding the 
12/06/2016 17:39
13/06/2016 12:26
18hr 47m
 PS Paremata Cres 6B
Unknown
Rainfal
potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 14/07/2016. This is most likely due to the heavy rainfal  event preceding the 
14/07/2016 2:46
14/07/2016 4:02
01hr 16m
 PS02 Postgate
Unknown
Heavy rainfall
potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 14/07/2016. This is most likely due to the heavy rainfal  event preceding the 
14/07/2016 4:16
14/07/2016 4:27
00hr 11m
 PS The Bridge 
Unknown
Heavy rainfall
potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 14/07/2016. This is most likely due to the heavy rainfal  event preceding the 
14/07/2016 2:43
14/07/2016 5:27
02hr 44m
 PS31 Vel a St
Unknown
Heavy rainfall
potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 14/07/2016. This is most likely due to the heavy rainfal  event preceding the 
14/07/2016 3:16
14/07/2016 7:22
04hr 06m
 PS Duck Creek
Unknown
Heavy rainfall
potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 14/07/2016. This is most likely due to the heavy rainfal  event preceding the 
14/07/2016 2:53
14/07/2016 8:34
05hr 41m
 PS35 Rukutane
Unknown
Heavy rainfall
potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 14/07/2016. This is most likely due to the heavy rainfal  event preceding the 
14/07/2016 4:05
14/07/2016 8:43
04hr 38m
 PS Station Rd 
Unknown
Heavy rainfall
potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 14/07/2016. This is most likely due to the heavy rainfal  event preceding the 
14/07/2016 2:58
14/07/2016 9:14
06hr 16m
 PS Moana Rd
Unknown
Heavy rainfall
potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 14/07/2016. This is most likely due to the heavy rainfal  event preceding the 
14/07/2016 3:11
14/07/2016 9:32
06hr 21m
 PS Steyne Ave
Unknown
Heavy rainfall
potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 14/07/2016. This is most likely due to the heavy rainfal  event preceding the 
14/07/2016 2:49
14/07/2016 9:35
06hr 46m
 PS6B Paremata Cres
Unknown
Heavy rainfall
potential overflow event. Further monitoring has indicated the levels have returned to normal.

Finish (Date + 
Total 
Start (Date + time)
(dd/mm/yy 
time)
Duration 
Volume of 
(dd/mm/yy 
(hrs/mins)
Location of Discharge
Cause of Discharge
Comments & Actions Taken
hh:mm)
Discharged 
hh:mm)
(m³)
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 14/07/2016. This is most likely due to the heavy rainfal  event preceding the 
14/07/2016 3:39
14/07/2016 9:38
05hr 59m
 PS39 Brandon
Unknown
Heavy rainfall
potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 13/08/16. This is most likely due to the heavy rainfal  event preceding the 
13/08/2016 8:49
13/08/2016 10:23
01hr 34m
 PS Moana Rd
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 13/08/16. This is most likely due to the heavy rainfal  event preceding the 
13/08/2016 10:07
13/08/2016 13:47
03hr 40m
 PS38 The Cottage
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 13/08/16. This is most likely due to the heavy rainfal  event preceding the 
13/08/2016 2:55
14/08/2016 1:46
22hr 51m
 PS20 City Centre
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 13/08/16. This is most likely due to the heavy rainfal  event preceding the 
13/08/2016 8:40
14/08/2016 9:37
24hr 57m
 PS Browns Bay
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 13/08/16. This is most likely due to the heavy rainfal  event preceding the 
13/08/2016 8:16
14/08/2016 14:14
29hr 58m
 PS Bridge
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 13/08/16. This is most likely due to the heavy rainfal  event preceding the 
13/08/2016 7:47
14/08/2016 14:46
30hr 59m
 PS Duck Creek
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 13/08/16. This is most likely due to the heavy rainfal  event preceding the 
13/08/2016 7:37
14/08/2016 17:17
33hr 40m
 PS Station Rd 
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 13/08/16. This is most likely due to the heavy rainfal  event preceding the 
13/08/2016 5:17
14/08/2016 19:19
38hr 02m
 PS Paremata
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 13/08/16. This is most likely due to the heavy rainfal  event preceding the 
13/08/2016 1:19
14/08/2016 20:20
43hr 01m
 PS035 Rukutane Pt
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 13/08/16. This is most likely due to the heavy rainfal  event preceding the 
13/08/2016 5:34
14/08/2016 20:40
39hr 06m
 PS39 Brandon
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 13/08/16. This is most likely due to the heavy rainfal  event preceding the 
13/08/2016 4:51
14/08/2016 21:23
40hr 32m
 PS02 Postgate
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 13/08/16. This is most likely due to the heavy rainfal  event preceding the 
13/08/2016 4:21
15/08/2016 12:07
55hr 46m
 PS31 Vel a St
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 8/9/16. This is most likely due to the heavy rainfal  event preceding the 
8/09/2016 17:46
8/09/2016 18:04
00hr 18m
 PS Station Rd 
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 8/9/16. This is most likely due to the heavy rainfal  event preceding the 
8/09/2016 18:06
8/09/2016 19:18
01hr 12m
 PS Fire Station
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 8/9/16. This is most likely due to the heavy rainfal  event preceding the 
8/09/2016 18:50
8/09/2016 19:35
00hr 45m
 PS Steyne Ave
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 8/9/16. This is most likely due to the heavy rainfal  event preceding the 
8/09/2016 18:16
8/09/2016 19:37
01hr 21m
 PS Rawhiti Rd 
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 8/9/16. This is most likely due to the heavy rainfal  event preceding the 
8/09/2016 18:35
8/09/2016 19:38
01hr 03m
 PS Te Pari Pari
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 8/9/16. This is most likely due to the heavy rainfal  event preceding the 
8/09/2016 19:12
8/09/2016 19:40
00hr 28m
 PS Plimmerton 
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 18/9/16. This is most likely due to the heavy rainfal  event preceding the 
18/09/2016 7:45
18/09/2016 14:17
06hr 32m
 PS Duck Creek
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 18/9/16. This is most likely due to the heavy rainfal  event preceding the 
18/09/2016 4:45
18/09/2016 15:37
10hr 52m
 PS Station Rd 
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 17/9/16. This is most likely due to the heavy rainfal  event preceding the 
17/09/2016 13:26
18/09/2016 16:56
27hr 30m
 PS Paremata
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 18/9/16. This is most likely due to the heavy rainfal  event preceding the 
17/09/2016 14:29
18/09/2016 16:59
26hr 30m
 PS39 Brandon
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 18/9/16. This is most likely due to the heavy rainfal  event preceding the 
17/09/2016 14:30
18/09/2016 19:10
28hr 40m
 PS35 Rukutane
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 18/9/16. This is most likely due to the heavy rainfal  event preceding the 
17/09/2016 8:56
18/09/2016 21:14
36hr 18m
 PS02 Postgate
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 18/9/16. This is most likely due to the heavy rainfal  event preceding the 
17/09/2016 11:41
19/09/2016 0:09
36hr 28m
 PS20 City Centre
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.
Once identified through CCTV, Operational team organised repair crew. The team was on-site immediately to carry out remedial repairs which consisted of 
N/A
5/10/2016 15:00
N/A
Rear of 29 Observatory Close
Unknown
Fault in sewer pipe
renewing a smal  section of the sewer pipe approximately 3m long. The sewer network was fully operational by 3pm with no further faults identified.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 10/11/16. This is most likely due to the heavy rainfal  event preceding the 
10/11/2016 2:22
10/11/2016 3:37
01hr 15m
 PS Duck Creek
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 10/11/16. This is most likely due to the heavy rainfal  event preceding the 
10/11/2016 2:18
10/11/2016 4:40
02hr 22m
 PS Paremata
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 10/11/16. This is most likely due to the heavy rainfal  event preceding the 
10/11/2016 2:43
10/11/2016 4:55
02hr 12m
 PS Station Rd 
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.

Finish (Date + 
Total 
Start (Date + time)
(dd/mm/yy 
time)
Duration 
Volume of 
(dd/mm/yy 
(hrs/mins)
Location of Discharge
Cause of Discharge
Comments & Actions Taken
hh:mm)
Discharged 
hh:mm)
(m³)
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 10/11/16. This is most likely due to the heavy rainfal  event preceding the 
10/11/2016 1:55
10/11/2016 5:25
03hr 30m
 PS20 City Centre
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 10/11/16. This is most likely due to the heavy rainfal  event preceding the 
10/11/2016 2:02
10/11/2016 5:46
03hr 44m
 PS02 Postgate
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 10/11/16. This is most likely due to the heavy rainfal  event preceding the 
10/11/2016 2:56
10/11/2016 6:16
03hr 20m
 PS39 Brandon
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 10/11/16. This is most likely due to the heavy rainfal  event preceding the 
10/11/2016 4:07
10/11/2016 7:47
03hr 40m
 PS38 The Cottage
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 10/11/16. This is most likely due to the heavy rainfal  event preceding the 
10/11/2016 2:02
10/11/2016 9:34
07hr 32m
 PS35 Rukutane
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 12/11/16. This is most likely due to the heavy rainfal  event preceding the 
12/11/2016 8:57
12/11/2016 9:53
00hr 56m
 PS Station Rd 
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 12/11/16. This is most likely due to the heavy rainfal  event preceding the 
12/11/2016 7:57
12/11/2016 11:12
03hr 15m
 PS Paremata 6B
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 12/11/16. This is most likely due to the heavy rainfal  event preceding the 
12/11/2016 8:43
12/11/2016 12:36
03hr 53m
 PS39 Brandon
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 12/11/16. This is most likely due to the heavy rainfal  event preceding the 
12/11/2016 7:46
12/11/2016 13:08
05hr 22m
 PS02 Postgate
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 12/11/16. This is most likely due to the heavy rainfal  event preceding the 
12/11/2016 6:53
12/11/2016 14:28
07hr 35m
 PS35 Rukutane
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 12/11/16. This is most likely due to the heavy rainfal  event preceding the 
12/11/2016 6:20
13/11/2016 1:05
18hr 45m
 PS20 City Centre
Unknown
Heavy rainfall
overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 2/2/2017. This is most likely due to the heavy rainfal  event preceding the 
2/02/2017 16:33
2/02/2017 18:03
01hr 30m
 PS31 Vel a St
Unknown
Heavy rainfall
potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 2/2/2017. This is most likely due to the heavy rainfal  event preceding the 
2/02/2017 17:17
2/02/2017 21:24
04hr 07m
 PS Duck Creek
Unknown
Heavy rainfall
potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 2/2/2017. This is most likely due to the heavy rainfal  event preceding the 
2/02/2017 16:24
2/02/2017 22:11
05hr 47m
 PS  Station Rd
Unknown
Heavy rainfall
potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 2/2/2017. This is most likely due to the heavy rainfal  event preceding the 
2/02/2017 15:50
2/02/2017 22:19
06hr 29m
 PS02 Postgate
Unknown
Heavy rainfall
potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 2/2/2017. This is most likely due to the heavy rainfal  event preceding the 
2/02/2017 15:56
2/02/2017 22:39
06hr 43m
 PS35 Rukutane
Unknown
Heavy rainfall
potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 2/2/2017. This is most likely due to the heavy rainfal  event preceding the 
2/02/2017 15:48
2/02/2017 23:04
07hr 16m
 PS Paremata 6B
Unknown
Heavy rainfall
potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 2/2/2017. This is most likely due to the heavy rainfal  event preceding the 
2/02/2017 17:01
2/02/2017 23:17
06hr 16m
 PS39 Brandon
Unknown
Heavy rainfall
potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 2/2/2017. This is most likely due to the heavy rainfal  event preceding the 
2/02/2017 15:20
3/02/2017 0:00
08hr 40m
 PS20 City Centre
Unknown
Heavy rainfall
potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 12/3/2017. This is most likely due to the heavy rainfal  event preceding the 
12/03/2017 5:52
12/03/2017 7:25
01hr 33m
 PS Browns Bay
Unknown
Heavy rainfall
potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 12/3/2017. This is most likely due to the heavy rainfal  event preceding the 
12/03/2017 6:41
12/03/2017 7:50
01hr 09m
 PS Moana Rd
Unknown
Heavy rainfall
potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 12/3/2017. This is most likely due to the heavy rainfal  event preceding the 
12/03/2017 5:48
12/03/2017 10:15
04hr 27m
 PS31 Vel a St
Unknown
Heavy rainfall
potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 12/3/2017. This is most likely due to the heavy rainfal  event preceding the 
12/03/2017 6:21
12/03/2017 16:10
09hr 49m
 PS01 Duck Creek
Unknown
Heavy rainfall
potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 12/3/2017. This is most likely due to the heavy rainfal  event preceding the 
12/03/2017 6:54
12/03/2017 17:35
10hr 41m
 PS20 City Centre
Unknown
Heavy rainfall
potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 12/3/2017. This is most likely due to the heavy rainfal  event preceding the 
12/03/2017 6:06
12/03/2017 17:52
11hr 46m
 PS Station Rd 
Unknown
Heavy rainfall
potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 12/3/2017. This is most likely due to the heavy rainfal  event preceding the 
12/03/2017 6:15
12/03/2017 19:06
12hr 51m
 PS39 Brandon St 
Unknown
Heavy rainfall
potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 12/3/2017. This is most likely due to the heavy rainfal  event preceding the 
12/03/2017 8:02
12/03/2017 19:19
11hr 17m
 PS38 The Cottage
Unknown
Heavy rainfall
potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 12/3/2017. This is most likely due to the heavy rainfal  event preceding the 
12/03/2017 5:58
12/03/2017 20:19
14hr 21m
 PS35 Rukutane
Unknown
Heavy rainfall
potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 12/3/2017. This is most likely due to the heavy rainfal  event preceding the 
12/03/2017 5:20
12/03/2017 20:29
15hr 09m
 PS02 Postgate
Unknown
Heavy rainfall
potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 05/04/2017. This is most likely due to the power outage and the heavy 
5/04/2017 4:51
5/04/2017 6:07
01hr 16m
 PS12 Plimmerton Boat Club
Unknown
Heavy rainfall
rainfal  event preceding the potential overflow event. Further monitoring has indicated the levels have returned to normal.

Finish (Date + 
Total 
Start (Date + time)
(dd/mm/yy 
time)
Duration 
Volume of 
(dd/mm/yy 
(hrs/mins)
Location of Discharge
Cause of Discharge
Comments & Actions Taken
hh:mm)
Discharged 
hh:mm)
(m³)
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 05/04/2017. This is most likely due to the power outage and the heavy 
5/04/2017 5:08
5/04/2017 9:40
04hr 32m
 PS38 The Cottage
Unknown
Heavy rainfall
rainfal  event preceding the potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 05/04/2017. This is most likely due to the power outage and the heavy 
5/04/2017 22:32
6/04/2017 0:22
01hr 50m
 PS Moana Rd
Unknown
Heavy rainfall
rainfal  event preceding the potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 06/04/2017. This is most likely due to the power outage and the heavy 
6/04/2017 4:54
6/04/2017 5:00
00hr 06m
 PS Fire Station
Unknown
Heavy rainfall
rainfal  event preceding the potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 05/04/2017. This is most likely due to the power outage and the heavy 
5/04/2017 19:18
6/04/2017 14:47
19hr 29m
 PS Duck Creek
Unknown
Heavy rainfall
rainfal  event preceding the potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 05/04/2017. This is most likely due to the power outage and the heavy 
5/04/2017 19:21
6/04/2017 15:49
20hr 28m
 PS Station Rd 
Unknown
Heavy rainfall
rainfal  event preceding the potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 05/04/2017. This is most likely due to the power outage and the heavy 
5/04/2017 18:12
6/04/2017 23:24
29hr 12m
 PS02 Postgate
Unknown
Heavy rainfall
rainfal  event preceding the potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 05/04/2017. This is most likely due to the power outage and the heavy 
5/04/2017 18:48
6/04/2017 23:31
28hr 43m
 PS35 Rukutane
Unknown
Heavy rainfall
rainfal  event preceding the potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 05/04/2017. This is most likely due to the power outage and the heavy 
5/04/2017 19:23
6/04/2017 23:57
28hr 34m
 PS39 Brandon St 
Unknown
Heavy rainfall
rainfal  event preceding the potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 05/04/2017. This is most likely due to the power outage and the heavy 
5/04/2017 19:15
7/04/2017 1:55
30hr 40m
 PS20 City Centre
Unknown
Heavy rainfall
rainfal  event preceding the potential overflow event. Further monitoring has indicated the levels have returned to normal.
We have just been informed of a ruptured sewer 200mm main just prior to the crossing from Huanui St Ranui across the highway.  Not sure what has happened. Just 
getting eyes on site.  A pump suction truck, flusher truck and camera truck are on their way to site. Hopefully we can pump from one MH to the other either side of 
11/04/2017 12:20
11/04/2017 15:30
03hr 10m
53 Huanui Overflow 
Unknown
Broken sewer main
where the discharge is coming up from to get a clearer picture of what is happening.  Location is just before it disappears under the Hwy1 outside Number 53 
Huanui 200mm Sewer main.  Al  resources are heading to site at the time of this writing.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 14/04/2017. This is most likely due to the power outage and the heavy 
14/04/2017 5:45
14/04/2017 6:13
00hr 28m
 PS35 Rukutane
Unknown
Heavy rainfall
rainfal  event preceding the potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 14/04/2017. This is most likely due to the power outage and the heavy 
14/04/2017 6:40
14/04/2017 10:30
03hr 50m
 PS20 City Centre
Unknown
Heavy rainfall
rainfal  event preceding the potential overflow event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 18/05/17  is due to the heavy rainfal  event preceding the potential overflow 
18/05/2017 7:54
18/05/2017 8:11
00hr 17m
 PS Station Rd 
Unknown
Heavy rainfall
event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 18/05/17  is due to the heavy rainfal  event preceding the potential overflow 
18/05/2017 7:39
18/05/2017 9:27
01hr 48m
 PS39 Brandon St 
Unknown
Heavy rainfall
event. Further monitoring has indicated the levels have returned to normal.
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 18/05/17  is due to the heavy rainfal  event preceding the potential overflow 
18/05/2017 7:45
18/05/2017 9:45
02hr 00m
 PS20 City Centre
Unknown
Heavy rainfall
event. Further monitoring has indicated the levels have returned to normal.
13/07/2017 8:06
13/07/2017 9:43
01hr 37m
 PS07 Bridge St 
Unknown
Heavy rainfall
13/07/2017 9:17
13/07/2017 9:51
00hr 34m
 PS15 Brora Cres
Unknown
Heavy rainfall
13/07/2017 7:11
13/07/2017 22:00
14hr 49m
 PS Duck Creek
Unknown
Heavy rainfall
13/07/2017 5:28
14/07/2017 1:23
19hr 55m
 PS Station Rd
Unknown
Heavy rainfall
13/07/2017 8:36
14/07/2017 2:37
18hr 01m
 PS38 The Cottage
Unknown
Heavy rainfall
13/07/2017 6:39
14/07/2017 5:24
22hr 45m
 PS20 City Centre
Unknown
Heavy rainfall
13/07/2017 5:53
14/07/2017 7:44
25hr 51m
 PS35 Rukutane Pt
Unknown
Heavy rainfall
13/07/2017 5:43
14/07/2017 9:26
27hr 43m
 PS39 Brandon St
Unknown
Heavy rainfall
13/08/2017 18:47
14/08/2017 2:25
07hr 38m
 PS35 Rukutane Pt
Unknown
Heavy rainfall
14/08/2017 6:17
14/08/2017 8:11
01hr 54m
 PS Station Rd
Unknown
Heavy rainfall
14/08/2017 7:31
14/08/2017 8:22
00hr 51m
 PS01 Duck Creek
Unknown
Heavy rainfall
14/08/2017 19:31
14/08/2017 21:22
01hr 51m
 PS01 Duck Creek
Unknown
Heavy rainfall
14/08/2017 11:37
15/08/2017 1:04
13hr 27m
 PS35 Rukutane Pt
Unknown
Heavy rainfall
14/08/2017 11:07
15/08/2017 9:32
22hr 25m
 PS Station Rd
Unknown
Heavy rainfall
14/08/2017 13:21
15/08/2017 10:11
20hr 50m
 PS20 City Centre
Unknown
Heavy rainfall
14/08/2017 18:37
15/08/2017 10:22
15hr 45m
 PS39 Brandon St
Unknown
Heavy rainfall
20/02/2018 9:47
20/02/2018 10:23
00hr 36m
 PS Station Rd
Unknown
Heavy rainfall event

Finish (Date + 
Total 
Start (Date + time)
(dd/mm/yy 
time)
Duration 
Volume of 
(dd/mm/yy 
(hrs/mins)
Location of Discharge
Cause of Discharge
Comments & Actions Taken
hh:mm)
Discharged 
hh:mm)
(m³)
20/02/2018 9:50
20/02/2018 10:27
00hr 37m
 PS Fire Station
Unknown
Heavy rainfall event
20/02/2018 9:55
20/02/2018 11:04
01hr 09m
 PS01 Duck Creek
Unknown
Heavy rainfall event
20/02/2018 9:50
20/02/2018 16:10
06hr 20m
 PS35 Rukutane Pt
Unknown
Heavy rainfall event
20/02/2018 9:25
20/02/2018 22:40
13hr 15m
 PS20 City Centre
Unknown
Heavy rainfall event
10/04/2018 8:35
10/04/2018 10:13
01hr 38m
PS6A Station Road
Unknown
Heavy rainfall event
The site is monitored by Wel ington Water’s SCADA system and recorded high levels
10/04/2018 8:35
10/04/2018 10:13
01hr 38m
 PS Station Rd
Unknown
Heavy rainfall event
10/04/2018 8:31
10/04/2018 10:28
01hr 57m
 PS38 The Cottage
Unknown
Heavy rainfall event
10/04/2018 7:47
10/04/2018 11:39
03hr 52m
PS01 Duck Creek
Unknown
Heavy rainfall event
The site is monitored by Wel ington Water’s SCADA system and recorded high levels
10/04/2018 7:47
10/04/2018 11:39
03hr 52m
 PS01 Duck Creek
Unknown
Heavy rainfall event
10/04/2018 8:46
10/04/2018 13:35
04hr 49m
 PS39 Brandon St
Unknown
Heavy rainfall event
10/04/2018 7:50
10/04/2018 22:35
14hr 45m
PS20 City Center
Unknown
Heavy rainfall event
The site is monitored by Wel ington Water’s SCADA system and recorded high levels 
10/04/2018 7:50
10/04/2018 22:35
14hr 45m
 PS20 City Centre
Unknown
Heavy rainfall event
10/04/2018 19:56
10/04/2018 23:50
03hr 54m
 PS39 Brandon St
Unknown
Heavy rainfall event
11/04/2018 17:10
11/04/2018 22:35
05hr 25m
PS20 City Center
Unknown
Heavy rainfall event
The site is monitored by Wel ington Water’s SCADA system and recorded high levels 
11/04/2018 17:10
11/04/2018 22:35
05hr 25m
 PS20 City Centre
Unknown
Heavy rainfall event
11/04/2018 21:17
11/04/2018 23:19
02hr 02m
 PS39 Brandon St
Unknown
Heavy rainfall event
11/04/2018 21:53
11/04/2018 23:43
01hr 50m
PS01 Duck Creek
Unknown
Heavy rainfall event
The site is monitored by Wel ington Water’s SCADA system and recorded high levels 
11/04/2018 21:53
11/04/2018 23:43
01hr 50m
 PS01 Duck Creek
Unknown
Heavy rainfall event
11/04/2018 21:52
11/04/2018 23:56
02hr 04m
PS6A Station Road
Unknown
Heavy rainfall event
The site is monitored by Wel ington Water’s SCADA system and recorded high levels
11/04/2018 21:52
11/04/2018 23:56
02hr 04m
 PS Station Rd
Unknown
Heavy rainfall event
11/04/2018 22:49
11/04/2018 23:56
01hr 07m
 PS35 Rukutane Pt
Unknown
Heavy rainfall event
5/05/2018 0:00
5/05/2018 0:00
00hr 00m
Bothamley Park 
Unknown
Pipe fault
13/05/2018 10:25
13/05/2018 10:45
00hr 20m
 PS20 City Centre
Unknown
Heavy rainfall event
19/05/2018 7:22
19/05/2018 8:04
00hr 42m
 PS39 Brandon St
Unknown
Heavy rainfall event
8/06/2018 17:00
8/06/2018 19:45
02hr 45m
 PS39 Brandon St
Unknown
Heavy rainfall event
18/06/2018 17:55
18/06/2018 18:53
00hr 58m
 PS01 Duck Creek
Unknown
Heavy rainfall event
18/06/2018 18:21
18/06/2018 20:15
01hr 54m
 PS Station Rd
Unknown
Heavy rainfall event
18/06/2018 19:32
18/06/2018 20:45
01hr 13m
 PS35 Rukutane Pt
Unknown
Heavy rainfall event
18/06/2018 19:00
18/06/2018 23:02
04hr 02m
 PS39 Brandon St
Unknown
Heavy rainfall event
8/07/2018 7:38
9/07/2018 1:23
17hr 45m
PS01 Duck Creek
Unknown
Heavy rainfall event
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 08/07/2018
8/07/2018 18:11
9/07/2018 3:02
08hr 51m
PS6A Station Road
Unknown
Heavy rainfall event
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 08/07/2018
8/07/2018 8:58
9/07/2018 4:10
19hr 12m
PS38 The Cottage
Unknown
Heavy rainfall event
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 08/07/2018
8/07/2018 19:38
9/07/2018 4:10
08hr 32m
PS35 Rukutane
Unknown
Heavy rainfall event
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 08/07/2018
8/07/2018 7:30
9/07/2018 4:30
21hr 00m
PS20 City Center
7614
Heavy rainfall event
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 08/07/2018
8/07/2018 7:19
9/07/2018 8:47
25hr 28m
PS39 Brandon St
Unknown
Heavy rainfall event
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 08/07/2018
22/07/2018 0:13
22/07/2018 0:44
00hr 31m
PS01 Duck Creek
Unknown
Heavy rainfall event
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 08/07/2018
22/07/2018 0:05
22/07/2018 1:50
01hr 45m
PS20 City Center
83
Heavy rainfall event
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 08/07/2018
20/08/2018 21:35
20/08/2018 22:30
00hr 55m
PS20 City Center
?
Heavy rainfall event
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 20/08/2018
20/08/2018 21:28
21/08/2018 0:07
02hr 39m
PS35 Rukutane
?
Heavy rainfall event
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 20/08/2018
20/08/2018 22:19
21/08/2018 2:12
03hr 53m
PS39 Brandon St
Unknown
Heavy rainfall event
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 21/08/2018
21/08/2018 5:17
21/08/2018 5:30
00hr 13m
PS6A Station raod
Unknown
Heavy rainfall event
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 21/08/2018
21/08/2018 6:52
21/08/2018 7:22
00hr 30m
PS38 The Cottage
Unknown
Heavy rainfall event
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 21/08/2018
21/08/2018 1:10
21/08/2018 8:47
07hr 37m
PS01 Duck Creek
Unknown
Heavy rainfall event
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 21/08/2018
3/09/2018 19:25
3/09/2018 22:32
03hr 07m
PS01 Duck Creek
Unknown
Heavy rainfall event
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 21/08/2018
3/09/2018 17:15
4/09/2018 1:15
08hr 00m
PS20 City Center
Unknown
Heavy rainfall event
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 20/08/2018
3/09/2018 10:49
4/09/2018 3:07
16hr 18m
PS39 Brandon St
Unknown
Heavy rainfall event
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 21/08/2018
12/10/2018 11:26
12/10/2018 12:22
00hr 56m
PS35 Rukutane
?
Heavy rainfall event
The site is monitored by Wel ington Water’s SCADA system and recorded high levels 
12/10/2018 11:55
12/10/2018 14:55
03hr 00m
PS20 City Center
Unknown
Heavy rainfall event
The site is monitored by Wel ington Water’s SCADA system and recorded high levels 
30/10/2018 5:35
30/10/2018 8:56
03hr 21m
PS20 City Center
Unknown
Heavy rainfall event
The site is monitored by Wel ington Water’s SCADA system and recorded high levels 
30/10/2018 7:11
30/10/2018 8:56
01hr 45m
PS39 Brandon St
Unknown
Heavy rainfall event
The site is monitored by Wel ington Water’s SCADA system and recorded high levels 
The site is monitored by Wel ington Water’s SCADA system and recorded high levels on 12/6/16. This is most likely due to the heavy rainfal  event preceding the 
12/06/2016 0:00
N/A
N/A
 PS39 Brandon St
Unknown
Rainfal
potential overflow event. Further monitoring has indicated the levels have returned to normal.

Document Outline