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 the region’s coastal fringes to areas of higher elevation across the eastern hill
country and the slopes of Taranaki Maunga. Much of this rainfall rapidly flows to the sea via rivers
(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
Notices. These applications are currently sitting with the Council, who
are continuing to liaise with NPDC regarding the situation.
0
10
20
30
40
50
60
70
80
90
0
10
20
30
40
50
60
70
80
90
Vo
lu
m
e
(m
³/
da
y)
Ra
in
fa
ll
(m
m
/d
ay
)
Daily Rainfall at Motunui (mm/day) Onaero SPS Consented Maximum Flow
page
11
In the 2022-2023 period, the Council was not required to undertake
Mangati Catchment Joint Annual Report 2022-2023
presently under
significant pressure. While there may be an increase in demand as people look to move away from less
secure surface water sources, this is not expected to place groundwater under significant pressure in the
short to medium term.
As expected, monitored groundwater sites display fluctuations in water level as a result of seasonal
variations in rainfall recharge. The magnitude of these changes varies considerably by site, ranging from
a few millimetres up to several metres. The …
https://www.nems.org.nz/documents/water-quality-part-3-lakes/
page
Technical Memorandum | Draft Baseline State for Escherichia coli and Cyanobacteria (Planktonic) in Taranaki Rivers and Lakes
year at 40 popular primary contact sites, including a range of beaches, rivers and lakes around Taranaki. There
are 23 freshwater sites (i.e. rivers and lakes) included in the current CISH programme.
The monitoring results highlight the impact that rainfall has on recreational water quality. Escherichia coli
concentrations can be
measured and achieved. In first iteration plans, it will
also be particularly difficult to meet many of these ‘musts’, rather it will be a case of making
incremental progress over time.
• The E.coli component of the NOF is problematic. The E.coli grade is based on the lowest scoring
area across four different criteria. One of these – the 95th percentile – is highly influenced by
heavy rainfall. In a region like Taranaki, where such rainfall is common, achieving the
improvements
Ordinary Council Agenda May 2024
CDEM Joint Committee March 2024
a week between 1 November and 31 March each
year at 40 popular primary contact sites, including a range of beaches, rivers and lakes around Taranaki.
There are 23 freshwater sites (i.e. rivers and lakes) included in the current CISH programme.
The monitoring results highlight the impact that rainfall has on recreational water quality. Escherichia coli
concentrations can be significantly elevated at primary contact sites for up to three days following heavy
rainfall. This is owing to the