Exeter · Tuesday 21 July 2026The Exe catchment · 339 monitored outfallsData as of 21 Jul 2026 · 11:20
An open-data investigation
Nothing is discharging into the Exe. All 339 outfalls, watched continuously.
At this hour, no outfalls have been discharging for over a quarter of an hour into the Exe and its tributaries with no rainfall recorded at the nearest gauge — 497 hours since the last rainfall recorded there, the one condition their permits rest on.
Reported entirely from public data · Environment Agency EDM feeds · EA Hydrology API · South West Water WaterFit Live · No paywall, no press office
Dry spills · discharging nowno rain recorded
0
Outfalls discharging for at least 15 minutes with no rainfall recorded at their nearest gauges in 24h. Brief monitor activations are recorded but never counted here.
Rainfall · last 24h0.0 mm
EA gauge 45184flatlined — dry for 497h
A spill on a dry day has no rainfall to point to. That is the anomaly this site tracks.
Storm overflows are only permitted to operate during times of rainfall and snowmelt.
— Environment Agency, permit conditions for storm overflows
Hours since rainfall at the Exeter gauge: 497 · Outfalls discharging now: 0
Part I — The scene
Every monitored outfall on the Exe, in one view.
339 storm overflows feed the Exe and its tributaries. Colour is state, not decoration — coral means discharging with no rainfall recorded.
Not dischargingDischarging (rain)Dry spillUnverifiedRiver levelBathing water
Fig. 1 — Monitored outfalls on the Exe, live. Coral marks an outfall discharging with no rainfall recorded at the nearest gauge. Positions come from the EDM feed's own coordinates. Toggle for the schematic view.
When the discharge line rises and the rain line doesn't.
We cross every discharge against the nearest rainfall gauge. No rain, still discharging — flagged automatically.
Nothing is currently discharging with no rainfall recorded at its nearest gauge.
Part III — The record
Every spill day for one outfall, the way a chart should show it.
COFTON SPS · PSCSOEO · DAWLISH · each square is a day. Deeper coral means longer discharge; the reddest days had no rain recorded.
Jul '25SepNovJan '26MarMayJul
6 spill days · 6 with no rain · since 11 Jul 2026
no record · LessMore · dry
Fig. 3 — Discharges at one works, day by day. The reddest squares are days it discharged with no rainfall recorded; dimmed squares predate this site's live records (day-level history before then isn't published anywhere — only audited yearly totals exist). See all six years of the audited record, every outfall ranked →
Part IV — The named
The outfalls discharging longest, ranked.
By total discharge hours this year. The coral figure is the share with no rainfall recorded at the nearest gauge.