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Forest of Dean

Polluted by sewage 1,413 times in 2025 lasting 12,644 hours - That's 1.46 years!

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Contains OS Data © Crown copyright & database right 2021-2024
© Top of the Poops 2021-2024

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Live data for Forest of Dean in 2026

So far this year (as of 15 Aug 2026, 18:46) there has been 12,447 hours of sewage overflows, from 80 CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway s - that's 1.44 years!

Totals for Forest of Dean in 2025

33 Sites polluted by Dwr Cymru Welsh Water Severn Trent Water
1,413 sewage dumps
12,644 hours duration
That's 1.46 years. On average 3.9 times a day

Change Over Time

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Pollution Summary 2025

Here are all the reported sewage overflow totals for Forest of Dean in 2025. 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 all the declared CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway s appeared to have monitoring enabled for more than 50% of the year

Company Waterway Site Sewage Dumps Duration (Hours) Reporting %
Severn Trent Water River Severn BLAKENEY SEWAGE TREATMENT WORKS 233 2,042 99.83
Severn Trent Water River Severn Estuary LYDNEY SEWAGE TREATMENT WORKS 178 1,476 89.7
Dwr Cymru Welsh Water Wye Estuary ST BRIAVELS SEWAGE TREATMENT WORKS 136 1,198 99.9
Severn Trent Water River Severn BROADOAK SEWAGE TREATMENT WORKS 87 1,127 99.8
Severn Trent Water Glynch Brook PITTS MILL SEWAGE TREATMENT WORKS 51 907 93.2
Dwr Cymru Welsh Water River Wye NEWLAND SEWAGE TREATMENT WORKS 91 862 98.8
Severn Trent Water River Lyd EAST MARSH SEWAGE PUMPING STATION 48 703 99.7
Severn Trent Water Longhope Brook LONGHOPE STW 44 564 100
Severn Trent Water Cone Brook ALVINGTON PUMPING STATION 51 538 93.1
Severn Trent Water Plummers Brook OLDCROFT - OLD DAM ROAD SPS 30 480 100
Dwr Cymru Welsh Water Of Lodgegrove Brook RUARDEAN STW 36 426 98.5
Dwr Cymru Welsh Water River Wye JOYFORD MILL PUMPING STATION 24 375 99.9
Severn Trent Water Cinderford Brook CINDERFORD CRUMP MEADOW STW 31 351 99.4
Dwr Cymru Welsh Water River Wye SEDBURY SEWAGE PUMPING STATION 59 332 99.9
Severn Trent Water Colliers Brook WATERSMEET SPS 21 266 100
Dwr Cymru Welsh Water River Wye LYDBROOK SEWAGE TREATMENT WORKS SSO 24 251 99.9
Severn Trent Water Westbury Brook CHURCH WESTBURY CSO 27 216 100
Severn Trent Water River Lyd LYDNEY - CHURCH ROAD CSO 57 102 99.9
Severn Trent Water River Severn BROADOAK SEWAGE PUMPING STATION 13 94 100
Severn Trent Water Ell Brook NEWENT SEWAGE TREATMENT WORKS 17 85 100
Severn Trent Water River Leadon ORCHARD WAY CSO 23 47 100
Severn Trent Water Cinderford Brook LORRY PARK STORM OVERFLOW 14 41 100
Severn Trent Water Cinderford Brook RAILWAY ROAD CSO 15 30 100
Severn Trent Water River Severn NEWNHAM PUMPING STATION 26 30 100
Dwr Cymru Welsh Water River Wye WYEBANK RD CSO 28 29 78.9
Severn Trent Water River Roden TUTNALLS STREET - HAMS ROAD CSO 20 27 99.3
Severn Trent Water Cinderford Brook GREENWAY ROAD CSO 3 9 100
Severn Trent Water Ell Brook CLEEVE MILL LANE CSO 7 9 97.8
Dwr Cymru Welsh Water Cannop Brook CANNOP ROAD SEWAGE PUMPING STATION 7 7 99.8
Dwr Cymru Welsh Water River Wye GREAT HOUGHBROOK PS ADJACENT TO FOR 3 4 99.8
Severn Trent Water Peacocks Brook NEWENT THE CROFT CSO 6 2 100
Severn Trent Water River Leadon DYMOCK STW 2 1 95.9
Dwr Cymru Welsh Water River Wye LOWER LYDBROOK RIVER WYE CSO 1 0 100
Severn Trent Water Ley Brook CHURCHAM SEWAGE TREATMENT WORKS 0 0 98.9
Severn Trent Water Dry Brook ELLWOOD - HOLLY LANE SPS 0 0 100
Severn Trent Water Westbury Brook LITTLEDEAN STW 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. Live sewage data from Stream Water API

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.

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Analysing sewage pollution by the Water Industry

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