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Taranaki Regional Council Monthly Rainfall and Environmental
Data Report for March 2024
Note: The data presented here are provisional data only and may change as a result of quality control at a later date.
1. Rainfall
Map 1: March total rainfall (mm) and percentage of long-term mean (colour key).
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Map 1a. Total rainfall 1 January to end March (mm) and percentage of long-term mean (colour key).
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Table 1: Rainfall March
(Ministry for the Environment, 2020).
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Technical Memorandum | Draft Baseline State for Periphyton in Taranaki Rivers
Periphyton monitoring in the Taranaki region
In 2018, Taranaki Regional Council (TRC) initiated a monthly State of Environment (SoE) periphyton
monitoring programme, tailored to the requirements of the NPS-FM. Twelve sites are included in this
monitoring programme, many of which were selected to align with sites monitored in the state of the
to
provide maps containing information that relates to
your risk identification and action selection process.
The regulations allow you to present maps in a way
that makes sense to you, providing the requirements
are met. This means you can choose any mapping
tools, the form, size, the number of maps, and the
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However, you should check with your
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from the RHA in that it
requires underwater visual assessments at 20 underwater points along the reach (four locations across five
transects if possible).
Baseline states for sediment
The NPS-FM requires all regional councils to identify baseline states for all attributes described in Appendix
2A and 2B of the NPS-FM within each Freshwater Management Unit (FMU). When compared against national
bottom lines and the relevant objectives for an FMU, baselines provide the
Joanne Margaret Morgan 30-Aug-24 Replacement for expiring consent To discharge farm dairy effluent onto land and after treatment in an
oxidation pond system into the Oaoiti Stream if the land disposal area
is unsuitable for effluent disposal
Discharge Permit 94 Upper Ngariki Road, Rahotu Oaoiti
24-11248-1.0 11248-1.0 New Plymouth District Council 3-Sep-24 New consent To remove a structure, in, on, under or over the bed of Lake
Mangamahoe
Land Use Consent Lake Mangamahoe, Burgess Park,
condition in New Zealand lakes. User Manual Version 2.
National Institute of Water & Atmospheric Research: Hamilton, New Zealand. (see clause 1.8)
Lake SPI surveying in the Taranaki Region
In 2021, Taranaki Regional Council (TRC) engaged NIWA to survey three lakes (Lakes Kaikura, Mangawhio,
and Rotokare) using LakeSPI (Table 3, Figure 1). These lakes were the first in the region to be assessed using
this method. Lake SPI surveys were completed in November and December 2021. Detailed
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sites considered in this assessment is 22
(Appendix A). These sites have been used to inform the identification of draft ammonia, nitrate, and DRP
baseline states.
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Technical Memorandum | Draft Baseline State for Nutrients in Taranaki Rivers
Baseline states for nutrients
The NPS-FM requires all regional councils to identify baseline states for all attributes described in Appendix
2A and 2B of the NPS-FM within each Freshwater Management Unit (FMU). When compared
taxa present
at a site. Note that while the NPS-FM requires QMCI as a numeric attribute state for macroinvertebrates,
Taranaki Regional Council (TRC) uses the semi-quantitative MCI value (SQMCI), which provides a similar
output and will be considered surrogate to QMCI in relation to the NPS-FM. Unlike the MCI, the SQMCI is
not multiplied by a scaling factor of 20, thus provides a smaller numerical output. This attribute uses the same
methods applied as those applied to the MCI