FCL Water Quality Map

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Show sewage overflows (CSOs)

All Recently discharged Discharging now

River health (WFD)

Colours waterbodies by an estimated WFD-style classification, pooling all sample sites within each one. Click a waterbody for details. Not official EA/NRW/SEPA classification.

Show river names

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Get a kit to start measuring water quality near you.

You can search for a particular point of interest or a postcode. You can also select a different metric from the metric window to display national water quality data for Total Oxidised Nitrogen, Phosphate and E. coli.

Sampling site Catchment Upstream rivers Rainfall station

Sewage outfall: Discharging Recently discharged Not discharging

Each hexagon aggregates water quality samples from that area. Zooming in shows more detailed water quality data for specific sampling sites. Click a hexagon to explore.

See individual measurements alongside daily rainfall and upstream sewage discharge events, helping you understand what is driving pollution. Ideal target values for each analyte are shown and highlighted on the graph. Hovering over a sewage discharge event highlights the corresponding outfall site on the map.