injection.
Photo 1 Waihapa Production Station
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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
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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.
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
Tawhiti Catchment combined consent monitoring report 2019-2020
Waitaha catchment consent monitoring report 2017-2018
identified as
black loamy sand and vegetation growth consists mostly of pasture. Test pitting and the logging of
boreholes on site indicated a relatively shallow water table. Test bores were augured to 10 m both around
the waste holding pit area and to the south-western site boundary, revealing alternating layers of sand and
clays. Bore construction also revealed localised peat layers within some augured cores (approximately 4–8 m
below surface). Average annual rainfall for the site is 1,043 mm