and detaching or detached mats accumulating on the river’s edge triggered the
‘Alert’ level at the same four sites (Waingongoro River at Ohawe, Kaupokonui River at the mouth, and
Waiwhakaiho River at the last riffle and at Merrilands Domain) on a total of 8 surveys. Levels of
cyanobacteria were higher than in the previous season; and lower than the preceding three seasons,
probably a reflection of the relative amounts of rainfall causing freshes that scour streambeds of
created no noticeable visual effects in the
receiving environment. The site was deemed compliant at the time of inspection.
11 December 2023
The inspection occurred during fine weather; there had been heavy rainfall during the previous day. Upon
arrival, the site gates were shut and locked. There was no change to the site since the last inspection as no
new material had been discharged. The swale contained water which was not discharging to the tributary.
No dust or odour issues were noted
caddisflies). The MCI index (widely used to monitor macroinvertebrates in
streams) is high (typically >100) in streams dominated by mayflies, stoneflies and caddisflies and low
(typically <80) in streams dominated by worms, snails and chironimids.
In Taranaki, nutrients are not such a problem because of fast flowing and relatively short rivers and
streams. High rainfall leads to frequent flushing events in rivers and streams that provide natural
scouring. Even in summer, most Taranaki rivers do
on aquatic life.
4.4.3 Climate
NIWA virtual Climate Station -38.975, 174.525 Thirty years of rainfall and evaporation data is
summarised in Table 1 below
Table 1: NIWA Virtual Climate Station 30-year data for a site near Uruti Site
Uruti Jan Feb Mar Apr May Jun Jul Aug Sept Oct Nov Dec Total
Rainfall 120.0 107.0 119.2 151.2 181.2 189.5 181.8 178.0 175.4 188.4 149.4 149.0 1890.
Evaporation 134.5 108.0 88.6 52.7 31.1 21.4 25.4 39.0 57.5 85.1 109.3 126.0 878.6
4.4.4
Report 2017-2020.
5.2 It was noted that Council would like to increase the number of monitoring bores,
especially within the eastern parts of Taranaki, to improve understanding of areas
where there is limited data and information.
5.3 Water allocation in the region is well within current allocation limits and monitoring
shows that groundwater levels are generally stable, with fluctuations the result of
seasonal rainfall and pumping effects. It was noted that we are already starting to see
performance for consent 7470-1.1 16
List of figures
Figure 1 Location of TTR site production and monitoring bores 5
Figure 2 Daily abstraction volumes under consent 7470-1.1 (July 2014-June 2015) 10
Figure 3 Daily abstraction volumes under consent 7470-1.1 (2009-2015) 10
Figure 4 Maximum daily abstraction rate under consent 7470-1.1 (2014-2015) 11
Figure 5 Maximum daily abstraction rate under consent 7470-1.1 (2009-2015) 11
Figure 6 Observed groundwater levels and rainfall
State of the Environment Report 2015
Policy and Planning Agenda March 2025
Revised Assessment of Environmental Effects (AEE) - June 2020
the
second inspection there had been 16.5mm of rainfall at the Waiwhakaiho meteorological station. The
pond was full and flowing slowly to the vegetated swale. The flow into the farm drain was a trickle and
could not be sampled.
The consent also imposes contaminant limits on water quality of the farm drain beyond a mixing zone
of approximately 7m. During each inspection there was no water flow in the farm drain. The second
inspection noted a few puddles in the drain. The drain is well