Monitored sites in the Waitara River catchment
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Including Egmont National Park, the Waitara catchment has a total of 6,748 km of stream bank. Many of the headwaters of tributaries within the Waitara catchment are in the Eastern Hill country where much of the streambank is protected by natural vegetation. The exact length of stream bank protected by riparian vegetation in this area has not been calculated and is not included in the current figures provided below for the extent of riparian vegetation. Therefore, the current figures do not represent the total amount of riparian vegetation in the Waitara catchment.
25% of the stream banks have riparian vegetation that is either covered by a Taranaki Regional Council riparian management plan (21%) or within the National Park (4%). 31% of stream banks are protected by riparian fencing outside of Egmont National Park and another 4% is protected within the Park. There are stretches of stream bank that are both fenced and planted.
38% of the stream banks outside of Egmont National Park are covered by riparian plans (June 2017).
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This dashboard shows information on the data collected by the regional councils for water quality indicators, analysed as
The state for the catchment is represented by theconcentration for the across all sites within the catchment and then compares that value to the for all monitored sites in New Zealand.
Click on the parameters state icons to compare this catchment with others in the region.
State shows how theof samples from this site compares to other sites
Trend shows how the quality of water is changing over time. Depending on the sampling history duration, five and ten year timescales are available:
The Cawthron Institute has worked alongside regional councils to verify the processes and methods used for data collection, laboratory analysis of samples collected and the statistical analysis and interpretation of the results presented.
If all Cawthron ticks are green, then you can trust this data. However, if one or more ticks are orange, then conclusions should be treated with some caution.
For more details on each tick, see our 'Can I Trust This Data?' Factsheet.
All samples were collected using approved field protocols and have been analysed in accredited laboratories. Therefore the data shown here has been collected and analysed following best practice.
All samples were collected using approved field protocols and have been analysed in accredited laboratories.
Samples are collected monthly at this site. Proposed national guidelines suggest monthly sampling is required for trend analysis. Therefore, any trends shown here are based on best practice in terms of sampling frequency.
This data is not flow adjusted. National guidelines suggest that flow-sensitive variables are flow 'adjusted' before trend analysis. Therefore, any trends shown here may be affected by variations in flow across sampling occasions.
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