taken and assess as compliant based on the results.
29 June 2020
Scheduled inspection undertaken by an investigating officer, during moderate rainfall with rainfall having
occurred since the previous night. The Kurapete Stream was running discoloured (brown) due to the
weather and the unnamed tributary was a slight, turbid grey due to quarry activities. The site inspection as
unable to be undertaken due to earthworks and electrical works being carried out. The stream and outfall of
the …
Figure 1 SEM beach bathing bacteriological survey sites
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4. Results
From 9 November 2010 to 12 April 2011 a total of 13 samples were collected at each
site for the purpose of state of the environment monitoring (SEM). Whenever
possible, no SEM sampling was undertaken within three days following significant
river freshes. However, occasionally sampling was affected by localised rainfall and
elevated river flows. An additional seven samples were taken at five of
NPDC NP wastewater treatment plant consent monitoring report - Taranaki Regional Council.
7
2 Results
2.1 Water
2.1.1 Inspections
26 October 2018
Scheduled inspection undertaken by two investigating officers. It was noted that rainfall had occurred the
night before. The wash pad was active at the time of inspection. Water discharging from the site appeared
visually very slightly turbid and downstream of the discharge was clear. Scheduled samples were taken. New
ponds had been installed as per proposed in the consent review application and the quarry size had
diversion to the New Plymouth WWTP was completed prior to 2000, only intermittent
discharges from the Inglewood WWTP have occurred, related to intense rainfall events and high stormwater
inflows. Any periods of overflow events are monitored by NPDC (wastewater only), with samples collected
and analysed by them at the time of each event.
Prior to the wastes diversion, the consent holder had been required to monitor effluent quality on a two-
monthly basis, as a special condition of discharge
........ ......... .......
.11
5.3 Monitoring Review and Actions .... .... .... .............. ......................... ..... ................... .......
..13
6.0 ......................................................................................................................................13
7.0 Uruti Site Rainfall
..................................................................................................
13
8.0 Haehanga Stream Flow.............. ...
Remediation NZ Ltd consent monitoring report - Taranaki Regional Council.
the site, therefore the concentration of
contaminants will likely be higher after smaller rainfall events as a result of lower
dilution. As the windrows act like sponges, slowly releasing moisture as well as
absorbing it, there may also be some drainage (leachate) from the site after rainfall
events have stopped.
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18
75. A washdown pad is also used to clean trucks after they have offloaded organic waste.
Water used for washing is pumped from the washdown supply
Taranaki State of the Environment Report 2009.
later.
However, a thick layer of mixed-up rock and soil
remains beneath. Smaller slumps or earthflows may
re-activate, during heavy rainfall or wet winters.
Figure 2. Typical slump terrain
Earthflows and slumps are widespread on fine-
grained rocks that weather to clay. Examples are
mudstone, argillite and schist. On coarse-grained
rocks such as sandstone, greywacke or volcanics,
they are restricted to localities where the rock has
been excessively weathered; for instance crush zones
along