have included an additional sediment settling pond being added to
the stormwater system (Photo 4). This discharges to the stream via a new pipe (STW002101) into the same
manhole as STW002016. The original connection from the skimmer pits (STW002016) has been retained so
that during times of high rainfall the flow can come directly from the skimmer pits rather than flushing out
the sediment settling pond.
Sampling of the discharge from the Kaimiro Production Station was undertaken twice
monitoring by OMV
OMV monitors the combined stormwater discharge from the site, with sampling triggered by rainfall events.
Table 3 shows the results obtained during the 2021-2022 monitoring year. There was no discharge at the
time of scheduled sampling during April 2022. In all samples pH, hydrocarbons, and suspended solids levels
were all within/below the limits set by consents 5997-1, 6269-1 and 10933-1, and were indicative of a
consistently clean discharge. OMV initiated daily stormwater
… and river erosion.
• Flood control schemes will be maintained to the 1 in 100 year levels of protection or to the standard set in the
relevant asset management plan for minor schemes. Rainfall and river levels will be monitored and timely flood
warnings issued.
Recreation, Culture and Heritage
• Facilitate the continued development and maintenance of Yarrow Stadium and ensure that Tupare, Hollard Gardens
and Pukeiti are maintained as regionally significant recreational and heritage
Operations and Regulatory Agenda Nov 2023 web
Lower Waiwhakaiho Catchment consent monitoring Annual report 2016-2017
distances and location of the stockpiling
facilities.
The predominant soil type has been identified as gravelly sand and the vegetation
cover is pasture, recently converted from native bush. Average annual rainfall for the
site is 1,942 mm (taken from the nearby ‘Stratford’ monitoring station).
No consents were initially held to discharge stormwater from this stockpiling site, as it
was expected to comply with the permitted activity criteria in Rule 23 of the Regional
Freshwater Plan.
discrete areas, such as near river mouths
and in close proximity to wastewater discharges. At river mouths, water quality can be
reduced as a result of contaminants from land use and development (e.g. farming,
earthworks, urban centres, industrial sites) entering waterways, particularly during or
following heavy rainfall events. Accidental discharges of largely untreated wastewater can
have temporary adverse effects on coastal water quality. Wastewater discharges from
large
Trustpower Mangorei HEP Annual Report 2020 2021
ammoniacal nitrogen in samples. The
autumn sampling in 2013-2016 sampling periods were collected after heavy rainfall which resulted in
elevated the ammoniacal nitrogen concentrations of the samples compared to those collected in 2009-2012
(Figure 3).
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Figure 3 Ammoniacal nitrogen concentration of the Inglewood landfill stormwater/leachate (RTP002005)
for monitoring to date
2.2.3 Results of receiving environment monitoring
2.2.3.1 Chemical analysis …
the standard set in the
relevant asset management plan for minor schemes. Rainfall and river levels will be monitored and timely flood
warnings issued.
Recreation, culture and heritage
Facilitate the continued development and maintenance of Yarrow Stadium and ensure that Tupare, Hollard Gardens
and Pukeiti are maintained as regionally significant recreational and heritage amenities.
Regional representation, advocacy and investment management
Ensure that the