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
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.
page
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
growth, as well as from losing oxygen in bottom waters of deep lakes.
>12 >60
For lakes and lagoons that are intermittently open to the sea, monitoring data should be analysed separately for closed
periods and open periods.
Lake monitoring in the Taranaki region
Prior to 2022, lake monitoring undertaken by the Taranaki Regional Council largely focused on a single lake,
Lake Rotorangi. Lake Rotorangi is an artificial lake used for hydroelectric generation and monitoring has
Clayton J, and
Edwards T. 2006. LakeSPI: A method for monitoring ecological condition in New Zealand lakes. User Manual Version 2.
National Institute of Water & Atmospheric Research: Hamilton, New Zealand. (see clause 1.8)
page
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
R2/11364-1.0 New Plymouth District Council 11-Mar-25 New consent To install a rock revetment structure for erosion control purposes Coastal Permit Tongaporutu Bridge, State Highway 3, Tongaporutu Tongaporutu
25-11365-1.0 R2/11365-1.0 New Plymouth District Council 11-Mar-25 New consent To remove an existing weir structure in the Huatoki Stream Land Use Consent Huatoki Domain, Huatoki Street, Frankleigh Park Huatoki
25-06274-2.1 R2/6274-2.1 Jones Quarry Limited 12-Mar-25 Change of consent conditions
To
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 reference point from
which councils must either maintain or improve an attribute, which
Regional Council (TRC) receives data from nine permanent dissolved oxygen monitoring sites
within the region. All of these monitoring sites are maintained by the TRC, with data being continuously
recorded at an interval of 15 minutes, as per the National Environmental Monitoring Standard (NEMS) for
Dissolved Oxygen (NEMS, 2016). In determining the appropriate dataset to inform baseline state, available
site data was assessed for the best state against the options set out in the NPS-FM
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Taranaki Regional Council:
a) takes as read and confirms the minutes of the Executive, Audit and Risk Committee
meeting of the Taranaki Regional Council held in the Taranaki Regional Council
chambers, 47 Cloten Road, Stratford on Monday 8 May at 10am
b) notes the recommendations therein were adopted by the Taranaki Regional Council on
Tuesday 16 May 2023.
Matters arising
Appendices/Attachments
Document: 3170404 Minutes Executive Audit and Risk Committee – 8 May 2023