9 December 2019
It was found that there were recently placed green waste material around the center of site. There was some
leachate/contaminated stormwater runoff observed due to the heavy rainfall at the time of inspection. It was
noted that the discharges were contained in the center of the site, and no discharges were observed off site.
There was some odour noted off site, however it was deemed to be minor at the time of inspection. The
Company was advised that there were no issues …
supply and no discharge of
wastewater occurs to the stormwater drain. However, because the uncovered settlement ponds receive
stormwater both directly and as run off from certain areas of the site, an excess of water may enter the
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system during heavy or sustained rainfall, or if rainfall occurs when the plant is not operating. This excess is
discharged via a sand filter prior to entering the NPDC stormwater system, which discharges to the
Mangaone Stream immediately
those anticipated if
the township was being created from green fields.
Although my comments here indicate that the I & I problem may not be as significant a
problem as previously thought, the Council has taken a precautionary approach and is
seeking to reduce I & I on an ongoing basis. It remains a fact that the response to
rainfall observed in Waitara is greater than the response at New Plymouth and any
work done to reduce Inflow and Infiltration will have a positive benefit in reducing the
underlying
coastal dune sands. Pit construction revealed mostly tightly packed sand at the pit
bases (approximately 4-5 m below surface). Average annual rainfall for the site is 1023
mm (taken from the nearby ‘Duffy’ monitoring station). As with the other South
Taranaki coastal sites, this Site is subject to strong winds.
Site data
Location
Word descriptor: Manawapou Road, Manutahi, Taranaki
Map reference: E 1717244
(NZTM) N 5608736
Mean annual rainfall:
used
at Cheal-E with nothing untoward noted. The pipeline between Cheal-E and the
production station had been completed without any issues. Re-fencing of the pipeline
corridor was underway.
All sites were well managed and tidy. Any stormwater discharges to adjacent streams
had not given rise to any adverse effects. Everything was satisfactory.
29 June 2015
The Cheal sites were inspected following an extreme rainfall event the previous
weekend. The design and management of the
Ordinary Council Agenda Sept web v2
rainfall events can
lead to rapid rises in river levels and flooding in hill country valleys and elsewhere.
Figure 2: The Taranaki Region
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18
The people
Figures from the 2018 census show Taranaki total population stands at 117,561, an increase of 7.3% over the
2013 census figure. In the previous census period (2006-2013) the region’s population increased by 5.3%.
Taranaki accounts for 2.5% of New Zealand’s total population.
Population changes have also varied
Ballance Agri-Nutrients Kapuni consent monitoring report - Taranaki Regional Council.
STDC Waverley-Kaponga-Manaia-Patea oxidation ponds consent monitoring report - Taranaki Regional Council.
Tawhiti catchment consent monitoring report - Taranaki Regional Council.