redistributed it as an apron, known as a ringplain. In addition,
significant volumes of ash and tephra were deposited on the ringplain area during
these successive volcanic events.
The drainage capacity of the soils within the ringplain area is variable due to the
variations in soil depositional sequence and structure. In different areas of the
ringplain the effects of erosional deposition and ash fall can vary. Laharic deposition
is more prevalent on the western side of the ringplain,
introduced to the litter
resulting in greater chance of odours; and
(iii) It has less wear on the building as the air is balanced and seals are
not put under pressure continuously;
(i) Water consumption is alarmed, so that any irregularities in water usage is
automatically flagged up to on duty staff;
(j) Use of nipple drinkers to avoid water falling on litter. Constant monitoring of
water usage to avoid leakage or overflow, and audits 4-5 times daily to detect
Resource consents held by
Westown Haulage/Westown Agriculture
(For a copy of the signed resource consent
please contact the TRC Consents department)
page
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. Permits authorising the
Policy and Planning Committee Agenda July 2024
previous monitoring carried out between 2016 and 2020
that show PM2.5 concentrations are consistently very low at the Central School site.
25. Under MfE’s grading criteria, 96% of daily mean concentrations measured at the site
achieved either an ‘excellent’ or a ‘good’ grading across the 2016 to 2021 period, with all
but one day of the remaining 4% falling into the ‘Acceptable’ category.
26. The annual mean concentration of PM2.5 at the Central School site across the 2016-2021
period was 4
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 riparian vegetation for approximately 10 metres
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.