Whilst the
average daily discharge limit was exceeded on two consecutive days under high rainfall conditions, the
Company identified and eliminated stormwater discharges to the system in a timely fashion. Additional
operational changes were made to minimise daily discharge volumes. The wastewater treatment system at
the Retreat did not adversely affect the water quality of the local freshwater and coastal environments. The
results of this sampling suggested that the Retreat was not influencing
chemicals)
Conductivity Conductivity, an indication of the level of dissolved salts in a sample, usually
measured at 25°C and expressed in mS/m
Cr Chromium
Cu* Copper
Fresh Elevated flow in a stream, such as after heavy rainfall
g/m3 Grams per cubic metre, and equivalent to milligrams per litre (mg/L). In water, this is
also equivalent to parts per million (ppm), but the same does not apply to gaseous
mixtures
Incident register A register containing a list of events recorded by
occurring at the
site and everything was secure.
16 March 2018
The inspection was undertaken following very heavy rainfall during the preceding week. The stormwater
system at Cheal Production Station was operating effectively, with all stormwater conveyed to the two big
lined skimmer pits. There was no discharge to the nearby stream observed during the inspection.
Flaring was observed at the time of the inspection and this was giving rise to a small amount of smoke in
the immediate
rainfall >5 days prior to
sampling, however sampling results on 11 February 2013 correlated with elevated
Waitara River flows a week preceding sampling (Figure 7). Conductivity results
were high at the time of sampling indicating no freshwater influence (Figure 3).
At Turanga Reef, ‘Alert’ mode was reached on 18 February (320 cfu/100ml, Figure
11); again this result was unexplained and did not coincide with any elevated
Waitara River flows during the days preceding (Figure 7).
predictions are made at the scale of the overall lake.
Uncertainty is a component of any freshwater monitoring or modelling. For example, river flows and levels
fluctuate throughout the day, and nutrient levels will vary depending on how much rainfall and runoff is
occurring. Pathogens and algae will grow in response to a range of factors, such as temperature, light and
river flow. This uncertainty is described in terms of ‘confidence’. For example, how certain it is that water
quality is
Oaonui Stream. During 2019-2020 5,000 litre tanks were utilised to store excess volumes when rainfall
exceeded capacity of the ponds and recirculation system. Investigations into the potential environmental
impacts of this activity and planning for remediation of the facility are continuing. Wood Group intended to
relocate the training centre to a new site in New Plymouth in early 2020, however the timeline for this has
been delayed due to Covid-19.
In terms of overall environmental and …
Trustpower Motukawa hydro scheme resource consent monitoring report 2019-2020
meetings
and any points of interest be discussed in this item on the agenda. A template will be
issued prior to the next meeting. Members agreed that they will respond to these in future.
Item 10: Forthcoming Events (standing item)
Shared by Marcia that TRST have some events coming up that she is happy to share with
the minutes, but the main two are;
• They have four rural woman events coming up and one for migrant communities.
General Business
Shared that the region has a heavy rainfall
generally rely on rainfall events to provide adequate water,
at flows between 20 and 70m3/s, and the Scheme has been operating for many years.1
The location of a weir on a river used for kayaking would normally be identified as a hazard. A sign
upstream of the weir warning kayakers of its
May 2018.
MacLeod/Hooker
Matters Arising
The impacts of recent extreme rainfall in the Gisborne region and the discharge of
forestry slash to rivers was raised and a discussion held over the likelihood of this
being an issue for Taranaki and how this could be managed under the NES –
Production Forestry. Concerns had been previously expressed by Cr Boyde about
similar incidents in Stratford District.
2. Update on submissions to the Proposed Coastal Plan for Taranaki