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
injection.
Photo 1 Waihapa Production Station
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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
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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.
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
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
maintenance shall occur within 12 months of the completion of the survey.
5. That the consent holder shall install and operate measuring devices capable of
measuring the water level, at a minimum of 15 minute intervals, in the race at the
locations specified in condition 2, and shall make records of such measurements
available to the Chief Executive at three monthly intervals. The records supplied are
also to include the rainfall data at hourly intervals from the station established at the
surface). Average annual rainfall for the site is 1,043 mm (taken from the nearby Patea monitoring
station).
Origin Energy Ltd’s Kauri D wellsite is situated in the eastern corner of the site, and there is a small coastal
lake inland and to the northeast (up gradient) of the storage pit area. Both of these operational features are
presented in Figure 1.
Figure 1 WRS Waikaikai Landfarm and regional insert
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A summary of the site data is provided below: