commenced in
early November 2009 with three of the sampling surveys performed prior to January
2010. The majority of the surveys were performed over the latter half of the summer
period. Bathing water samples were normally taken between the hours of 0900 and
1800 hours (NZDST) with none collected within a three day period following
significant river fresh conditions. [NB: regional differences in rainfall patterns have
caused difficulties at various sites in the past as localised rainfall may
involved flow metering at key locations in the network to identify
catchments with high I&I, and installation of fibre optic cables throughout 2,681 m of pipes in the
catchment with the biggest reaction to rainfall, to monitor the temperature differences before, during, and
after rainfall events. A report was produced that included recommendations to support a targeted I&I
remediation plan and deliver reductions in I&I, which NPDC will implement moving forward. This
investigation was completed to
industries 2021-2022 compliance monitoring sampling sites
The first of two dedicated stormwater sampling surveys scheduled for 2021-2022 was carried out between
07:30 and 11:00 on 30 November 2021. The survey was preceded by moderate rainfall overnight (23.2 mm)
recorded between 02:00 and 07:00 at Brooklands Zoo rain gauge. Light rain fell intermittently from the
morning to the early afternoon. There had been very little rainfall for 12 days preceding this survey. Samples
collected were also
Council’s hydrological monitoring team, as the weather conditions meant the demand for
irrigation was high, with irrigation starting as early as the middle of October.
The Council carried out compliance monitoring inspections at 68 sites during the 2015-2016
irrigation season. The inspections included visual checks of the intake structures, screens, staff
gauges, fencing around the pump sheds, downloading of data and stream gaugings.
For the summer irrigation period, the rainfall recorded at
‘Drain Decision’. Winning a Council prize was not a new experience for Shan as he
received an award last year. Congratulations to all three winners.
Science and Technology Fair awards
page
SITE OCTOBER 2011 ISSUE NO.59
Altitude and rainfall
In most cases there is a direct
link between rainfall figures and
altitude. Below are some
figures for both.
Multi choice mountain quiz
Te Maunga the mountain
Mt Taranaki rises to 2,518 metres making it the
North Island’s
State of the Environment Report 2015
increasing, and measures of water quality are trending in the right
direction. The region is not facing an unmanaged crisis in water quality, quite the opposite situation
is evident.
22) Over 300 rivers and streams radiate from Mount Taranaki across the ring plain. These are generally
short, narrow, incised, cool, and fast flowing, and water leaving the Egmont National Park has usually
reached the sea within 24 hours. High rainfall on the mountain generally means that most ring plain
investigations, and interventions summary table 20
Table 10 Summary of performance for consent 5079-2 23
Table 11 Summary of performance for consent 7520-1 24
Table 12 Evaluation of environmental performance over time 25
List of figures
Figure 1 Configuration of the HWWTP (adapted from NIWA, 2012) 4
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 …
observed at the top of the weir. There were elevated
flows at the time of the inspection due to heavy rainfall previously.
The lamprey baffle was viewed during the inspection on 4 October 2023 as the flow in the river was lower than
the previous inspection. It was noted that no rocks had been installed above the lamprey baffle to further
reduce flow, but this was no longer needed as the required timeframe for lamprey passage (1st June to 30th
September) had passed. Tree debris was observed
occur in heavy rainfall events. These flood flows spill overland but generally rejoin the main
channels before they enter the urban area. These overland flows will generally be caught by
the diversion channels which cut across the lay of land.
1.9 Climate
Because of its exposure to disturbed weather systems from the Tasman Sea, the Taranaki
region is often quite windy, but has few climate extremes. The most settled weather occurs
during summer and early autumn.
The mountain and