Area of Outstanding Natural Beauty

Cranborne Chase & West Wiltshire Downs - Live Sewage

Polluted by sewage 7,426 hours in 2026 , monitoring offline 28 hours so far..

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Contains OS Data © Crown copyright & database right 2021-2024
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Totals for Cranborne Chase & West Wiltshire Downs in 2026

Sewage7,426 hours
Monitoring offline28 hours
Potential pollution0 hours
Storm overflows33

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Daily Data - when it rained, and when they spilled

Square = rainfall none → heavy
Drop = sewage minutes → all day
Potential pollution Monitoring offline
Jan - 1,949 hours
Feb - 4,212 hours , 4 offline
Mar - 1,101 hours
Apr - 2 hours , 8 offline
May - 4 hours
Jun - 0 hours
Jul - 0 hours
Aug - 12 hours , 10 offline
Sept - 14 hours , 4 offline
Oct - 128 hours , 1 offline
Nov - 0 hours

Storm overflows in and around Cranborne Chase & West Wiltshire Downs

Company Site Name Receiving Waterway Overflow Days Total Duration (hours) Offline/Potential Pollution
Wessex Water HANGING LANGFORD River Wylye Via A Reed Bed 65 1,504h 50m -
Wessex Water FOVANT STORM TANK Fovant Brook 62 1,189h 24m -
Wessex Water CRANBORNE HIGHER HOLWELL STORM TANK River Crane 50 1,022h -
Wessex Water HINDON INLET Groundwater Via Infilt System 62 811h 49m -
Wessex Water Unknown Unknown 52 805h 46m -
Wessex Water BARFORD ST MARTIN BURCOMBE STORM TANK River Nadder 41 771h 9m -
Wessex Water HINDON THE DENE River Nadder 32 672h 20m -
Wessex Water BARFORD ST MARTIN River Nadder 25 413h 5m -
Wessex Water TISBURY NADDER CLOSE PLAYING FIELDS River Nadder Via Sws 31 101h 2m -
Wessex Water MAIDEN BRADLEY INLET Groundwater Via Infilt System 51 94h 50m -
Wessex Water SEMLEY INLET River Sem 14 20h 52m -
Wessex Water SUTTON WALDRON Fontmell Brook 3 12h 24m -
Wessex Water Unknown Unknown 1 4h 47m -
Wessex Water CHILMARK River Nadder 1 2h 20m -
Wessex Water MAIDEN BRADLEY OFF KINGSTON LANE River Wylye 1 0h 8m -
Wessex Water PENSELWOOD PENN MILL River Stour 0 0h -
Wessex Water FOVANT STORM TANK Fovant Brook 0 0h -
Wessex Water MAIDEN BRADLEY OFF KINGSTON LANE River Wylye 0 0h -
Wessex Water Unknown Unknown 0 0h 6 h
Wessex Water MAIDEN BRADLEY INLET Groundwater Via Infilt System 0 0h -
Wessex Water HINDON THE DENE River Nadder 0 0h -
Wessex Water BARFORD ST MARTIN BURCOMBE STORM TANK River Nadder 0 0h -
Wessex Water HINDON INLET Groundwater Via Infilt System 0 0h -
Wessex Water SUTTON WALDRON Fontmell Brook 0 0h -
Wessex Water CHILMARK River Nadder 0 0h -
Wessex Water TISBURY NADDER CLOSE PLAYING FIELDS River Nadder Via Sws 0 0h -
Wessex Water HANGING LANGFORD River Wylye Via A Reed Bed 0 0h -
Wessex Water MONKTON DEVERILL HINDON ROAD STORM TANK River Wylye 0 0h -
Wessex Water PENSELWOOD PENN MILL River Stour 0 0h -
Wessex Water CRANBORNE HIGHER HOLWELL STORM TANK River Crane 0 0h -
Wessex Water MONKTON DEVERILL HINDON ROAD STORM TANK River Wylye 0 0h 21 h
Wessex Water BARFORD ST MARTIN River Nadder 0 0h -
Wessex Water SEMLEY INLET River Sem 0 0h -

Data Sources & Accuracy

EDM (Event Duration Monitoring) data and Consented Discharges to Controlled Waters with Conditions from Environment Agency & Data Map Wales, and Scottish Water

Experimental derived data from Thames Water API, Some data may be missing or inaccurate. Live sewage data from Stream Water API

Annual figures up to and including 2025 come from official water company returns. The 2026 figure is our own estimate, derived continuously from the companies' live data feeds.

Uses Environment Agency rainfall data from the real-time data API (Beta) - Rainfall data is delayed by up to two days.

This website is intended to provide an accurate representation of the Environment Agency data. The data is hard to use, and thus some errors may have been made. If you find something that is incorrect, please raise an issue at the GitHub issues page and we'll endeavour to fix it quickly.

This project is not associated, approved or endorsed by any of the companies whose logos you see here.