Monitored sites in the Lee River catchment
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Lee River
This dashboard shows information on the data collected by the regional councils for water quality indicators, analysed as state and trend.
The state for the catchment is represented by the median concentration for the parameter across all sites within the catchment and then compares that value to the quartiles for all monitored sites in New Zealand.
Click on the parameters state icons to compare this catchment with others in the region.
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State
State shows how the median of samples from this site compares to other sites
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Trend
Trend shows how the quality of water is changing over time. Depending on the sampling history duration, five and ten year timescales are available:
Can I trust this data?
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.
Can I trust the data?
Data Collection
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.
State
All samples were collected using approved field protocols and have been analysed in accredited laboratories. Therefore the data shown here can be trusted.
Trend - SAMPLING FREQUENCY
Samples are collected quarterly at this site. Proposed national guidelines suggest monthly sampling is required for trend analysis. Therefore, any trends shown here are less robust than those calculated from data collected monthly. New Zealand's councils are currently reviewing their sampling procedures and aim to adjust their sampling frequency to monthly. This will increase the robustness of the trend analyses.
Trend - Adjustment for flow
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.
Bacteria
E. coli
State
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Trend
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Clarity
Black disc
State
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Trend
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Clarity
Turbidity
State
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Trend
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Nitrogen
Total Nitrogen
State
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Trend
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Nitrogen
Total Oxidised Nitrogen
State
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Trend
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Nitrogen
Ammoniacal Nitrogen
State
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Trend
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Phosphorus
Dissolved Reactive Phosphorus
State
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Trend
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Phosphorus
Total Phosphorus
State
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Trend
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Download Data
.ZIP file of indicator readings for all sites in New Zealand
Disclaimer
LAWA Partners shall not be liable, whether in contract, tort, equity or otherwise, for any loss or damage of any type (including consequential losses) arising directly or indirectly from the inadequacy, inaccuracy or any other deficiency in information supplied irrespective of the cause. Use of information supplied is entirely at the risk of the recipient and shall be deemed to be acceptance of this liability exclusion.
Environment Canterbury
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