Council.
The neighbourhood was surveyed for environmental effects.
1.4.4 Chemical sampling
Sampling of the Sidewinder Production Station discharge and the Piakau Stream upstream and downstream
of the discharge was scheduled to be carried out on two occasions, however these samples were unable to
be collected during 2021-2022 (this was due to a combination of factors such as COVID measures, the
skimmer pits requiring a large amount of rainfall to discharge, and the site being manned only during
Mangati catchment (Bell Block industrial area) consent monitoring report 2019-2020
regional councils, to enhance knowledge base for policy
development and implementation. Projects with clear
relevance and benefit to Taranaki to be adopted by
"Envirolink" and other funding opportunities (advocacy to
be reported through Council's annual report processes).
Envirolink projects encompassing a High Intensity Rainfall Design
System, Discrete Water Quality Sampling Standards, farm scale
soil mapping and applications, aquatic weeds management,
assessment
Envirolink projects encompassing a revised national High Intensity
Rainfall Design System, development of Discrete Water Quality
Sampling Standards, farm scale soil mapping and applications,
management options for aquatic weeds, assessment criteria for
fish passage and barrier mitigation options, a review of marine
recreational microbiological guidelines and their scientific basis,
weed pest surveillance tool, wetland soils delineation, urban
stormwater flows and quality
development and
implementation. Projects with clear relevance and
benefit to Taranaki to be adopted by "Envirolink"
and other funding opportunities (advocacy to be
reported through Council's annual report processes).
The 2015/2016 'Envirolink' projects are underway: a review of
a national High Intensity Rainfall Design System, and
development of Discrete Water Quality Sampling Standards.
MBIE approval now provided for 4 projects in 2016/2017: farm
scale soil
14
recorded at upstream site 2 (KHI000353) during both the December 2015 (150 g/m3)
and May 2016 (370 g/m3) surveys (Table 2). The exact cause of this result could not be
identified but was likely due to rainfall and/or activities in the headwaters of the
stream.
2.1.2.2 Industrial discharge site (IND005014)
Historical and current results from the industrial discharge from the yellow novaflow
pipe (IND005014) samples are presented in Table 3. Due to a lack of flow
upstream 2 (0.724 g/m3). The reason why there was an increase in zinc concentration
for the December survey from site upstream 1 to site upstream 2 and a subsequent
decrease in zinc concentration from site upstream 1 to site upstream 2 during the May
survey is probably related to rainfall. The spring survey is a ‘dry run’ where no rainfall
can occur three days prior to sampling while the summer survey is a ‘wet run’ and
occurs during heavy rain.
The site upstream 1 had a low pH for the 9
5.73 km2 (TRC Explorer),
with monthly rainfall averaging 176 mm. The catchment geology in the Haehanga is
dominated by Papa mudstones which are easily eroded and can contribute to poor water
clarity in the water ways.
4.2.2.1 Haehanga Stream and tributaries
The Haehanga Stream is an entrenched meandering stream below the site, but adjacent the
composting facility the stream has been modified and channelized to provide drainage away
from the composting activities. The stream was
inspections.
page
10
22 October 2015
The site was inspected during a rainfall event and south westerly wind conditions.
A reasonable quantity of green waste material was found to be present at the time of
inspection. It was observed that the lower western area was nearly full and green waste
material had been dumped towards the river mouth section.
It appeared that contractors were regularly removing material from the drop off areas
of the site that would not be
environmental risks to staff and contractors
body_Text Train staff in Best Management Practice to reduce risk
body_Text Separate ie uncontaminated stormwater from flowing across potentially contaminated areas
body_Text Isolate ie contaminated areas using shut-off valves
body_Text Secure eg keep hazardous liquids or materials secure from tampering or spills
body_Text Clean eg keep outside working areas clean and tidy to prevent rainfall carrying contaminants off site, or clean vehicle