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 companies environmental and administrative performance during
the period under review. The rating categories are high,
Streams. In the unnamed tributary, no
significant detrimental effects were found. However at the time of both surveys, the results suggested poor
preceding water quality that may be indicative of adverse effects associated with the landfill leachate.
Air quality monitoring showed that there were no significant adverse effects in relation to suspended
particulates, dust deposition rates or odour beyond the site boundary.
An enclosed gas flare system was installed for air quality control
led to mass loadings of nitrogen per hectare that were well in
excess of those recommended by the Council and the description of N loadings previously provided by
RNZ. As was the case for the 2021-2022 year, the rates of application in 2022-2023 raise questions about
whether the ability of pasture to take up nitrogen could be or is being surpassed. On the other hand, the
timing and volume of irrigation events in 2022-2023 suggest that these inputs were being managed more
intentionally as a
discharge:
These details are provided in sections 3 and 5 of the attached
Assessment of Environmental Effects.
page
Liquids discharged to water
What is the proposed maximum rate of discharge?
Rate 55000.0
Unit Litres per second
How frequent is the discharge? Not constant
Hours per day 0.00
Days per week 0.00
Other
Give full details of the method of discharge: The discharge of water to the Mako Stream will occur at times
when the
any
treatment it will receive prior to discharge:
These details are provided in sections 3 and 5 of the attached
Assessment of Environmental Effects.
Liquids discharged to water
What is the proposed maximum rate of discharge?
Rate 2000.0
Unit Litres per second
How frequent is the discharge? Not constant
Hours per day 0.00
Days per week 0.00
Other Will occur during maintenance periods only.
page
Give full details of the method of
to help fund this network.
Affordability is both a local, regional and national issue. Therefore, new tools, such as time and location-
based charging to manage demand, are not just welcomed – they are necessary.
The current funding system based on Fuel Excise Duty (FED), Road User Charges (RUC) and rates is under
extreme pressure. The local government sector wish to work with the Ministry of Transport and NZTA in a
collaborative process to investigate and implement a
of the volume of water abstracted and the volume of wastewater
discharged.
During the year, Silver Fern Farms demonstrated a good level of environmental and high level of
administrative performance with the resource consents.
Breaches of the abstraction permits were recorded during the monitoring period. This related to two matters.
In one case, subsidence of the pump shed was causing pipes to break affecting the volume and rate of take. A
temporary repair by the consent holder was
Lake Mangamahoe 23
5.1 Historic aerial imagery analysis 23
5.2 Observed morphology and processes 25
5.3 Bathymetric surveys 26
5.4 Annual sediment infill rate 29
6 Summary 32
7 Applicability 35
8 References 36
Appendix A : Catchment scale sediment sources
Appendix B : Downstream geomorphic assessment
page
Tonkin & Taylor Ltd
Mangorei HEPS Consent Renewal - Lake Mangamahoe Sediment Assessment
Trustpower Ltd
November 2020
Job
Landscape Guidance Note2
and its signposts to examples of best practice.
1.2.2 Effects Ratings and Definitions
An outline of the effects ratings and definitions used in this assessment is provided in the Boffa
Miskell: Natural Character, Landscape and Visual Effects Assessment Methodology (11
February 2019) attached as Appendix 1. In summary, the significance of effects identified within
this assessment are based upon a seven-point scale which includes very low; low; moderate-
low;
filtering, while for the weasel data set 141,825 SNPs were retained. Given the
different sizes of the two data sets and the filtering parameters that are affected by
sample size, these numbers may not reflect the relative genetic diversity of these two
species accurately. However, it appears that weasels have considerably more genetic
variation than stoats in Taranaki. All quality metrics for each SNP were high, with the mean
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sample depth (8.4) and mean co-call rate