Water quality for swimming categories for rivers 4th order and above. This dataset was used to compose the current state for water quality for swimming.
Note this data is under review and will be updated in due course. This information is based on modelled and measured data using the approach outlined at www.mfe.govt.nz/fresh-water/freshwater-management-... .
The modelling methods used are outlined in Snelder et al. (2016) Strategic assessment of New Zealand’s freshwaters for recreational use: a human health perspective. LWP Client Report 2016-011 www.mfe.govt.nz/publications/fresh-water/strategic...
This dataset is the geometric version of this: data.mfe.govt.nz/table/53620-river-water-quality-f...
This dataset has now been superseded due to consultation with local authorities, and this is the latest version: data.mfe.govt.nz/layer/95555-river-water-quality-f...
NZREACH: NZREACH from the River Environment Classification Version 1
ORDER: Strahler stream order
Category: Water quality for swimming category see www.mfe.govt.nz/fresh-water/national-targets-swimm...
PrGT540: percentage of samples that exceeded 540 E.coli per 100mL
PrGT260: percentage of samples that exceeded 260 E.coli per 100mL
Median: median E.coli per 100mL
Q95: 95th percentile E.coli per 100mL
Note: blank cells are reaches where a prediction was not possible because of missing predictor variables.
You may use this work for commercial purposes.
You must attribute the creator in your own works.
|Data type||Vector linestring||Feature count||570577|
|Attributes||ORDER, NZREACH, PrGT540, PrGT260, Median, Q95, Category|
|Services||Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W)|