animals is the predominant land use in Taranaki. Associated
with that land use is the discharge of animal excreta onto land with associated faecal
microorganisms, which can end up in waterways through overland flow during rainfall
events. These microorganisms can affect human health and animal health if ingested and
impact the instream values of waterways.
In Taranaki, and in other parts of New Zealand, there has been significant investment in
recent times by the farming sector in adopting a
Todd Energy Waitui/Mystone wellsite consent monitoring report - Taranaki Regional Council.
results were available. A sample was obtained from the second
skimmer pit.
2 July 2014
Inspection was conducted following a heavy rainfall event. The skimmer pits
appeared clear of visual contaminants. The ring drains and bunds also appeared
clear. Some combustion had been undertaken via the thermal oxidisers and no
offensive smoke or odours were detected in conjunction with this.
17 July 2014
Inspection found that production was continuing on site. The site was found to be in
a general
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5
Stormwater from the production station is collected and discharged at three separate
points. The water level in the firewater pond in the north western corner of the site is
maintained by an abstraction from the Ngaere Stream. Overflow due to rainfall
entering this pond is discharged to land and to the Ngaere Stream to the north of the
pond. Stormwater from the process areas is directed to a large separator system to the
north east of the site. The effluent from this
NPDC Waitara wastewater treatment plant consent monitoring report - Taranaki Regional Council.
addition, perched water tables are found above
various impermeable layers throughout the volcanic deposits. These are caused by
localised iron pans and mudstones, and have been found at almost any depth from a
few metres down to about 230 m. Groundwater levels in wells drilled in volcanic
deposits on the ring plain are generally close to the surface (Taylor and Evans, 1999).
Recharge of the Volcanics Formation aquifers is primarily from rainfall infiltration.
The Matemateaonga Formation
Waitaha catchment consent monitoring report 2017-2018
1 Wastewater irrigation areas, surface water monitoring and point source discharge locations in
the Inaha Stream and tributaries
Stormwater generated in the main yard, garage and raw material reception areas is diverted to a stormwater
treatment system (near B, Figure 1) before being discharged via a pipe (E) into the Firewater Pond which
itself discharges into the Inaha Stream. The stormwater discharge only occurs under high rainfall conditions
and so samples are collected from the