levels. This had been addressed through extension of the irrigation disposal
system in 2007-2008, and by more intensive wastewater and groundwater monitoring. During the year
under review, there was a higher nitrogen load applied to the paddocks than in the 2017-2020 years. The
nitrogen application rates increased by about 14% on Farm 1 and 20% on Farms 2 and 3 in the 2019-2020
year, with further increases of 10% on Farm 1, 4% on Farm 2, and 18% on Farm 3 during the year under
review. On Farm 3,
administrative compliance
Besides discussing the various details of the performance and extent of compliance by the consent holders,
this report also assigns a rating as to each Company’s environmental and administrative performance during
the period under review. The rating categories are high, good, improvement required and poor for both
environmental and administrative performance. The interpretations for these ratings are found in
Appendix II.
For reference, in the 2020-2021 year, consent
Operations and Regulatory Agenda Nov 2023 web
CDEM Joint Committee Agenda 19 May 2022
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 administrative performance
Besides discussing the various details of the performance and extent of compliance by the consent holders,
this report also assigns a rating as to each Company’s environmental and administrative performance during
the period under review. The rating categories
maintenance of the Motukawa HEPS.
Is a structure on, under, or over a river bed required? No
What is the maximum rate of taking proposed
(litres/second)?
8000
What is the maximum rate of taking proposed (cubic
metres per day)?
345600
What is the maximum volume proposed to be taken in a
7-day period (m3)?
2419200
Please indicate below how your taking will vary through a typical year
Maximum or near to maximum: Jul
May
Jun
Less than
development of the
region’s resources.
Evaluation of environmental performance
Besides discussing the various details of the performance and extent of compliance by the consent holders,
this report also assigns a rating as to each Company’s environmental and administrative performance during
the period under review. The rating categories are high, good, improvement required and poor for both
environmental and administrative performance. The interpretations for these ratings are found in
applications relating to the continued operation and
maintenance of the Mangorei HEPS.
Is a structure on, under, or over a river bed required? No
What is the maximum rate of taking proposed
(litres/second)?
10000
What is the maximum rate of taking proposed (cubic metres
per day)?
864000
What is the maximum volume proposed to be taken in a 7-
day period (m3)?
6048000
Please indicate below how your taking will vary through a typical year
Maximum or near to
can result in substantial changes in sediment regimes.
Streams in pastureland generally have a greater sediment yield than those under forested areas
(Davis-Colley, 1997). National literature of erosion rates in New Zealand suggest erosion rates are
between 3 – 11 times higher in catchments under pasture than those under forest, and sediment
yields are 50 – 80 % higher in pastureland than forested catchments (Basher, 2013). The processes
operating on Mount Taranaki may be contrary to this,
the consent holders,
this report also assigns a rating as to each Company’s environmental and administrative performance during
the period under review. The rating categories are high, good, improvement required and poor for both
environmental and administrative performance. The interpretations for these ratings are found in
Appendix II.
For reference, in the 2021-2022 year, consent holders were found to achieve a high level of environmental
performance and compliance for 88% of the