Significant deteriorations in black disc clarity
were recorded at two sites, one of which reflected historical erosion events in the headwaters.
The most improvement in long term water quality has been illustrated in the Waingongoro River at SH 45,
with significantly improving trends in dissolved reactive and total phosphorus, and with reduction in nitrate
and total nitrogen by slightly less than the rate defined as significant. This improvement has been
coincident with land-irrigation of a major
following
the same procedure as short vegetation, as fencing has been shown to result in rapid reductions in
sediment exports (McKergow, Weaver et al. 2003), although little is currently known about fencing
impacts on bank erosion rates (Hughes 2016), which will depend on stream size, bank height, and
bank material.
Index 3 was designed to more accurately quantify the effects of stream shading by riparian
vegetation by comparing shading to the relative width of the stream.
refinement of methods and
considered responsible resource utilisation, to move closer to achieving sustainable
development of the region’s resources.
1.1.4 Evaluation of environmental and administrative performance
Besides discussing the various details of the performance and extent of compliance by
NPDC, this report also assigns them a rating for their environmental and
administrative performance during the period under review.
Environmental performance is concerned with actual or
method for controlling possums on the Taranaki ring plain with
the vast majority of the ring plain now encompassed by the self help programme. However it is unlikely to be cost effective to apply the
programme to properties in the eastern hill country.
The Council proposes to maintain low possum numbers through a sustained control Programme, by continuing to maintain landholders
capacity to carry out control, but at a less intensive rate than properties in the self help programme. This will
ultimately, through the
refinement of methods and considered responsible resource utilisation, to move closer
to achieving sustainable development of the region’s resources.
1.1.4 Evaluation of environmental and consent performance
Besides discussing the various details of the performance and extent of compliance by
the consent holder/s during the period under review, this report also assigns a rating
as to each Company’s environmental and administrative performance.
Environmental
grating system on the original outlet from the second pond was
undertaken in late 1999. This outlet was then sealed but was raised and re-opened in
2004 and was utilised whenever stormwater infiltration volumes increase effluent rates
beyond the capacity of the re-positioned outlet.
page
4
Connection of the new saleyards’ partially treated wastes into the sewerage
reticulation was approved during the 2002-2003 period and has operated without
problems since the saleyards
research. Trapping success varied, but it can be easily
improved to increase capture rates and minimise impacts on live-caught animals.
Modifications to traps may be required to prevent moisture from urine or the environment
contacting animals. Edgar traps might also be considered in the future for easily accessible
areas, as these have nest boxes attached (although they are much heavier and more difficult
to deploy). Also, to minimise the time an animal spends in the trap, checking traps later in …
2017-2018 33
Table 12 Irrigation area soil samples 2017-2018 34
Table 13 Summary of performance for consent 5838-2.2 49
Table 14 Summary of consent 5839-2 52
Table 15 Summary of consent 5893-2 53
Table 16 Summary of consent 5892-2.0 54
Table 17 Summary of consent 5938-2.0 55
Table 18 Summary of consent 6211-1 56
Table 19 Summary of consent 6212-1 56
Table 20 Summary of consent 10063-1.0 57
Table 21 RNZ consent compliance rating 2017-2018 59
page
iii
Mangaoraka Stream at
Corbett Road and Punehu Stream at SH45). Significant deteriorations in black disc clarity
were recorded at three sites, two of which reflected historical erosion events in the
headwaters.
The most improvement in long term water quality has been illustrated in the Waingongoro
River at SH 45, with significantly improving trends in DRP and total phosphorus, and with
reduction in nitrate and total nitrogen by slightly less than the rate defined as significant.
This improvement
purposes of these consents, the 'Collection Pond', the Duck Pond and Pad 3 are
shown on Figure 1, attached as Appendix I of these consents.
Irrigation
14. From a date no later than 60 days after these consents commencing, the consent holder s a>>
must measure and record the rate and volume of discharge from the Irrigation Pond at
intervals not exceeding 1 minute to an accuracy of -+1sr/oc_
___ __ _ ______ _. _ __ _ ____ _ __ _. _
_ _____ ____ ___
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15. The consent holder s