Godalming and Ash was polluted by sewage 384 times in 2024
lasting 4,450 hours

Constituency

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✔ means we have experimental daily data since 2023

Live data for Godalming and Ash in 2025

So far this year (as of Apr 16, 2025, 5:30 PM) there has been 1,661 hours of sewage overflows

Totals for Godalming and Ash in 2024

11 Sites polluted by Southern Water, Thames Water

384 sewage dumps
4,450 h duration

That's 6.18 months. On average 1.1 times a day

Change Over Time

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Constituencies near Godalming and Ash

Waterways in Godalming and Ash

Daily Data

We get information about overflowing CSOs since January 2025. Here is a chart of the last three months of data for Godalming and Ash, here you can see overflows in red, the darker the red, the more the CSO overflowed that day.

Each CSO has a row, the most recent data is on the right hand side.

Monitoring Online Monitoring Offline Polluting Potentially Polluting Unknown

Daily data is experimental and data is not guaranteed to be accurate. Please inform us of any issue, we will fix.

Pollution Summary 2024

Here are all the reported sewage overflow totals for Godalming and Ash in 2024. Sometimes sewage can be being dumped for months at a time.

Reporting refers to how much of the time the monitoring was active. In this constituency 0 of the total 14 CSO locations had reporting enabled for less than half the year, of which 0 had zero reporting.

Company	Waterway	Site	Sewage Dumps	Duration (Hours)	Reporting %
Thames Water	Cranleigh Waters	CRANLEIGH STW, CRANLEIGH, SURREY	103	1,565	98.9
Southern Water	Chiddingfold Stream	CHIDDINGFOLD WWTW	91	1,507	100
Thames Water	Cranleigh Waters	LITTLEMEAD INDUSTRIAL ESTATE CSO	52	414	99.8
Thames Water	River Wey	GODALMING WWTW	25	233	99.9
Thames Water	Blackwater	Ash Vale	23	208	100
Thames Water	Hascombe Stream	Bramley	30	177	99.8
Southern Water	Freshwater River	TURNERS MEAD P.S.	23	152	99.9
Thames Water	Cranleigh Waters/Littlemead	CSO AT KNOWLE LANE	22	98	100
Southern Water	Un River Arun	HAMBLEDON PUMPING STATION	8	63	100
Thames Water	Cranleigh Waters	Taylors Crescent, Cranleigh	5	23	100
Southern Water	Un River Arun	NORTHBRIDGE WASTEWATER PUMPING STN	2	6	99.5
Thames Water	Cranleigh Waters	SHAMLEY GREEN (WONERSH) WWTW	0	0	100
Thames Water	Littlemead Brook	EWHURST ROAD, CRANLEIGH, SURREY	0	0	99.2
Southern Water	Un River Arun	COOPERS PLACE WORMLEY CEO	0	0	100

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. This 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.

Analysing sewage pollution by the Water Industry

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