2.3 Mr B Pope, Compliance Manager, in response to the question regarding Clark Peters
Farms Limited, advised that every dairy effluent discharge application is assessed on a
case by case basis and there are a number of environmental factors that are looked at
including land area, land size, and rainfall in the area.
2.4 Mr K Holswich, Iwi Representative, noted that the reporting provided by officers in
relation to consent applications are appreciated, it is very useful for hapū
2024 sample results, notably an increase of 40mS/m at ARW000999 (downstream location). This
increase is likely a result of the unusually low rainfall in the region, which has reduced the natural mixing
and dilution of stream water.
Figure 5 Potassium trend from April 2021 to March 2024.
Potassium levels also remained at a low level throughout the surface water monitoring, with the exception
of higher levels recorded at all sites in March 2024. As noted in previous reports, control site
3.1 Water balance method.............................................................................................9
3.2 Site Selection.........................................................................................................10
3.2.1 Rainfall and potential evapotranspiration .................................................10
3.2.2 Soil Types.................................................................................................. 11
3.3 Irrigation
daily average results fell
into the Ministry's 'excellent' or 'good' categories and 41% of the results met the 'acceptable'
category. Six daily results from the total 138 of days monitored fell into the ‘alert’ category. It
is noted that all of those six results happened during moderate to heavy rainfall events, and
in the majority of cases, during fresh onshore winds. These findings confirm those of the
previous inhalable particulate surveys that found sea salt spray to be a major PM10 source.
investigation and design. No
construction occurred.
During the 2022/23 period expenditure on inflow and infiltration reduction consisted of:
• $457,127 spent on pipe renewals
• $17,774 spent on CCTV.
A wastewater network modelling project has recently been completed. This used rainfall and sewer flow
data to create a calibrated digital model of the entire Inglewood wastewater network. The calibrated model
will be used to assess network performance under different storm events of varying
boundary – bank erosion
page
i
Table of contents
Page
1. Purpose 1
2. Introduction 1
3. Background 1
3.1 Ring plain 1
3.2 Elevation 2
3.3 Stability 3
3.4 Rainfall 3
3.5 Run off 4
3.6 Channels 4
4. Legal status and background 6
4.1 Ownership 6
4.2 Control 6
4.3 Land ownership 6
4.4 Catchment authorities 7
4.5 Regional Water Boards 7
4.6 Control of gravel extraction 7
5. Geology 8
6. Watercourses 9
7. Event/effect relationship 10
2019-2020 monitoring year, with most
commencing irrigation in late October and concluding in March. Rainfall recorded at the Council’s
monitoring locations over the summer irrigation period ranged between 85% and 114% of historical mean
values. Total usage during the 2019-2020 irrigation season, across all exercised irrigation consents was 8,835
ML. This was more than that used during the preceding 2018-2019 monitoring year, when 56 irrigation
consents were exercised, and a total usage of 6,906 ML. …
cyanobacteria were higher than in the previous
three seasons, and similar to the preceding two seasons, probably a reflection of the relative amounts of
rainfall causing freshes that scour streambeds of periphyton.
page
Timely reporting of the results of bacteriological water quality and cyanobacteria numbers/cover was
undertaken by use of the Taranaki Regional Council website (www.trc.govt.nz) and LAWA website
(www.lawa.org.nz), as well as liaison with territorial local
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
(the Council) to assess the environmental
performance during the period under review, and the results and effects of the consent
holder’s activities.
The Council’s monitoring programme included three regular inspections, one additional
inspection, and two biological receiving water surveys. Three short duration overflows (four
to nine days) following prolonged and intensive rainfall events, occurred between mid April
and late June 2015.
Regular inspections indicated no problems