with chlorine and fluoride for domestic supply before being pumped to a nearby
reservoir. The water supply is reticulated to approximately 2,300 separate customers.
Filter backwash is discharged via a large pond. The outlet from the pond is an inverted pipe located at the
opposite end of the pond from the inlet. The discharge from the pond emerges from a pipe to fall over a
small waterfall. At the base of the waterfall the discharged water runs down a natural cobbled channel
beneath native …
approximately 300 L/s of the
residual flow past the weir (constructed in 2002). The remaining residual flow passes through an old (and
mostly ineffective) fish pass on the true left bank of the weir.
Much of the scheme is monitored and operated remotely by the Company. Through an automated water
level sensor system, the Company can monitor the residual flows in the Manganui River and Mangaotea
Stream, water levels in the race and lake and how much rain is falling locally. This has allowed the
Quarterly Operational Report March 2018
Quarterly operational report September 2017.
there were no solid flecks of zinc visible around this stormwater drain. Solid flecks of
zinc were visible on both the gravel and concreted areas around the building and
galvanized items were laid out around the perimeter of the yard. It was advised that
zinc flecks be picked up on a regular basis, particularly when heavy rain was forecast.
It was also advised that if the gravel areas around the site were frequently being used
to dry items, that this area be concreted to ensure that any flecks
Fonterra Whareroa Annual Report 2023-2024
STDC Closed Landfills Annual Report 2023-2024
7922-1 Water outlet structure installation and use 12/10/2011 2021 2031
1.3.1 Water abstraction permits
Section 14 of the RMA stipulates that no person may take, use, dam or divert any
water, unless the activity is expressly allowed for by a resource consent or a rule in a
regional plan, or it falls within some particular categories set out in Section 14.
Todd Energy holds water abstraction permit 1226-1 to take water from the Mangahewa
Stream for process, fire fighting and
17.9°C in February 2013 during a period of
low flow conditions. Dissolved oxygen saturation did not fall below 88% during the
period, with this minimum recorded under a period of lengthy very low flow
conditions (Figure 3).
Brief comparison with the previous 1995-2012 period
Aesthetic stream water quality at this site during the 2012-2013 period was slightly
clearer [higher median black disc clarity (by 0.21 m)] although median suspended
solids level and median turbidity remained very
2011 (coincident with
93% dissolved oxygen saturation and pH of 7.6) during moderately low flow
conditions at that time. Dissolved oxygen saturation did not fall below 90% during
the period.
Brief comparison with the previous 1995-2010 period
Aesthetic stream water quality at this site during the 2010-2011 period was slightly
more turbid [lower median black disc clarity (by 0.32 m) and higher median
suspended solids level (by 1 g/m3) although median turbidity remained the same].