by NPDC assessed for compliance upon receipt.
The monitoring showed that the activities were generally being carried out in compliance with the
conditions of the resource consent. The results of surface and groundwater quality monitoring undertaken
show no adverse effects of the activity on local fresh water resources. Site visits undertaken found the site
to be tidy and well managed.
During this monitor year, following higher than average rainfall the minimum separation distance
Mangati Catchment Annual Report 2023-2024
................................................................................................ 43
3.1.6 Hot days ................................................................................................... 46
3.1.7 Growing degree days ............................................................................... 49
3.2 Rainfall .................................................................................................................... 52
3.2.1 Rainfall totals ........................................................................................... 52
3.2.2 Dry
(NPS-FM) regarding water quantity and specifically the requirements to
set environmental flows and levels, and associated limits. The memorandum also provides information on the
current state of water allocation across Taranaki and details the technical work done to help support the
implementation of the NPS-FM requirements.
Overview of surface water quantity
Taranaki receives frequent and plentiful rainfall. The amount of rainfall is extremely variable however,
increases significantly from
that so
few limits were breached indicates excellent management of the scheme.
There are certain operational requirements also set by consents, which require flushing flows of 400L/s to be
released down the residual flow reach once the Tariki weir has not naturally overtopped for 30 days. There
was one occasion during April 2024 when the Company provided a notification with regard to extremely low
flows in the Manganui River due to unusually low rainfall for a sustained period. Generation
Operations and Regulatory Committee Agenda April 2023
page
Doc. No: 3004955
TARANAKI REGIONAL COUNCIL MONTHLY RAINFALL AND RIVER REPORT FOR February 2022
Provisional Data Only
Note: some sites record a number of parameters
Table 1: Rainfall at 27 sites throughout the region
Station Sub-region
Monthly Year to Date
Records Began Number of rain
days (>0.5mm)
Total Monthly
Rainfall (mm)
% of Monthly
Normal (%)
Total to date
(mm)
% of Normal for
year to date
% of average full
calendar year
Nth
community conversation about the
best approach.
This is a major issue on the road ahead as climate
change is expected to have wide-ranging impacts
on our region.
The temperature is expected to increase by
between 0.5°C and 1.5°C by 2040, while rainfall
will become more variable, increasing the risk of
drought on one hand and the risk of floods on
the other. Rising sea levels will increasingly
threaten coastal communities and these changes
will put more stress on already struggling
Table 11 Summary of performance for consent 10810-1 23
Table 12 Evaluation of environmental performance over time 24
List of figures
Figure 1 Configuration of the HWWTP (adapted from NIWA, 2012) 3
Figure 2 Daily hours where DO is greater than 0 g/m3 in Pond 1 and 2 8
Figure 3 Daily discharge volumes (m3/day) from the HWWTP and daily rainfall data (mm) from a
Council rainfall station located approximately 5 km east of the site (2022-2023) 12
Figure 4 Location of intertidal
Civil Defence Emergency Management Joint Committee Agenda Aug 2025