advised that
these should be collected before the next rainfall event to prevent them entering waterways. There was a
low-flow discharge from the southern stormwater pond but not enough to collect a sample from. Water in
the stormwater drains was flowing. Water samples were collected from the remaining monitoring locations.
There was no foam or odour at any stream location.
2.1.2 Water quality sampling
Results of the two sampling surveys carried out in the 2022-20223 monitoring year are
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CO AS TAL P L AN F O R TARANAK I S chedu le 6 – H i s t o r i c he r i t age
has become a challenge, many are still caught in the months of June, July and August by Taranaki Iwi
families.
Relatively high rainfall up on the mountain quickly drains through these river systems, contributing to high
water flows and the swift clearance of excessive
on reworked dune fields. The Waikaikai Stream flows
approximately through the centre of the site. The proximity of the site to this
recognised ecosystem has been taken into account in the setting of buffer distances
and location of the stockpiling facilities.
The predominant soil type has been identified as black loamy sand and vegetation
growth is primarily pasture. Average annual rainfall for the site is 1043 mm (taken
from the nearby ‘Patea’ monitoring station). As with the other
Ordinary Council Agenda February 2024 Part 1
includes effluent storage that is sized with account
for historic local rainfall data, but does not specifically take into
account climate change effects on rainfall. Climate change
predictions for Taranaki generally anticipate more drought and
a greater frequency and intensity of storm events. I will use best
practice dairy effluent management, to maintain suitable
effluent storage capacity that will enable deferred effluent
discharge to land until suitable weather and soil conditions. My
November 2022 and 1 March 2023) are presented
in Table 3, along with a summary of the historical data. Ammoniacal nitrogen results can fluctuate due to
factors like recent grazing, topography of the surrounding area and/or leachate generation from additional
stormwater infiltration. Since 2017 ammoniacal nitrogen has been consistently below 10 g/m3-N. Figure 3
shows ammoniacal nitrogen results since 2005. Some of the higher results (e.g. 2015), can be attributed to
heavy rainfall preceding
paddocks (green) and
regular paddocks (blue). 20
Figure 7 The average volume of wastewater discharged to the Kahouri Stream in
relation to stream flow and the 100:1 consent limit 22
Figure 8 The volume of wastewater irrigated to land and discharged to water,
compared with the monthly rainfall totals 23
Figure 9 The proportion of wastewater irrigated to land over summer and winter
since November 2011 24
Figure 10 Monthly wastewater volume compared with monthly total kill and total
Regional Transport agenda September 2021
illustrating the wind direction and strength over the Taranaki
Sawmills PM10 monitoring period 99
Figure 13 PM10 results in the vicinity of Taranaki Sawmills site expressed as a
moving 1 hour average 99
Figure 14 PM10, PM10 (24 hour average), and wind direction for ambient monitoring
in the vicinity of Taranaki Sawmills site 100
Figure 15 Rainfall recorded at SH3 in the neighbouring Mangati catchment 101
Figure 16 Property of TBS Coatings Limited, and related monitoring sites 107
Figure 17
Tawhiti catchment consent monitoring report - Taranaki Regional Council.