Forest of Dean was polluted by sewage 1,495 times in 2023
lasting 15,180 hours - that's 1.76 years!
- but monitoring was disabled in some locations, so could be more

© OpenStreetMap contributors
Contains OS Data © Crown copyright & database right 2021-2023
© Top of the Poops 2021-2023
✔ means we have experimental daily data since 2023
Totals for Forest of Dean in 2023
30 Sites polluted by Dwr Cymru Welsh Water, Severn Trent Water
1,495 sewage dumps
15,180 h duration
That's 1.76 years! On average 4.1 times a day
Change Over Time
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Pollution Summary 2023

Here are all the reported sewage overflow totals for Forest of Dean in 2023. 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 3 of the total 37 CSO locations had reporting enabled for less than half the year, of which 3 had zero reporting.

Company Waterway Site Sewage Dumps Duration (Hours) Reporting %
Dwr Cymru Welsh Water River Wye NEWLAND SEWAGE TREATMENT WORKS 164 2,310 100
Severn Trent Water River Lyd EAST MARSH SEWAGE PUMPING STATION 147 2,030 99.8
Severn Trent Water Glynch Brook PITTS MILL SEWAGE TREATMENT WORKS 110 1,763 97
Dwr Cymru Welsh Water Wye Estuary ST BRIAVELS SEWAGE TREATMENT WORKS 149 1,278 99.8
Severn Trent Water River Severn BLAKENEY SEWAGE TREATMENT WORKS 129 1,214 100
Severn Trent Water Cone Brook ALVINGTON PUMPING STATION 85 1,107 95.8
Severn Trent Water Longhope Brook LONGHOPE STW 65 736 99
Severn Trent Water Cinderford Brook CINDERFORD CRUMP MEADOW STW 57 703 69.3
Severn Trent Water Plummers Brook OLDCROFT - OLD DAM ROAD SPS 40 698 93.1
Dwr Cymru Welsh Water Of Lodgegrove Brook RUARDEAN STW 57 641 71
Dwr Cymru Welsh Water River Wye SEDBURY SEWAGE PUMPING STATION 95 577 99.9
Severn Trent Water Ell Brook NEWENT SEWAGE TREATMENT WORKS 37 478 99.8
Severn Trent Water Ley Brook CHURCHAM SEWAGE TREATMENT WORKS 32 367 85.4
Severn Trent Water River Lyd LYDNEY - CHURCH ROAD CSO 87 315 96.3
Severn Trent Water Dry Brook ELLWOOD - HOLLY LANE SPS 15 254 98.6
Severn Trent Water River Severn BROADOAK SEWAGE TREATMENT WORKS 57 254 67.1
Severn Trent Water Colliers Brook WATERSMEET SPS 11 130 95.8
Severn Trent Water Westbury Brook CHURCH WESTBURY CSO 18 106 97.5
Severn Trent Water Cinderford Brook LORRY PARK STORM OVERFLOW 27 67 69.5
Severn Trent Water River Roden TUTNALLS STREET - HAMS ROAD CSO 27 36 96.2
Severn Trent Water Cinderford Brook RAILWAY ROAD CSO 8 22 97
Severn Trent Water River Leadon ORCHARD WAY CSO 14 20 98.4
Severn Trent Water River Leadon DYMOCK STW 7 18 100
Dwr Cymru Welsh Water River Wye WYEBANK RD CSO 36 18 99.7
Dwr Cymru Welsh Water River Wye LYDBROOK SEWAGE TREATMENT WORKS SSO 6 17 99.9
Severn Trent Water Ell Brook CLEEVE MILL LANE CSO 5 4 97.7
Severn Trent Water River Severn NEWNHAM PUMPING STATION 4 2 100
Dwr Cymru Welsh Water Cannop Brook CANNOP ROAD SEWAGE PUMPING STATION 2 0 99.8
Severn Trent Water Cinderford Brook GREENWAY ROAD CSO 1 0 99.9
Severn Trent Water Peacocks Brook NEWENT THE CROFT CSO 3 0 99.7
Severn Trent Water River Severn Estuary LYDNEY SEWAGE TREATMENT WORKS 0 0 0
Dwr Cymru Welsh Water River Wye GREAT HOUGHBROOK PS ADJACENT TO FOR 0 0 17.3
Severn Trent Water River Severn BROADOAK SEWAGE PUMPING STATION 0 0 100
Severn Trent Water Ley Brook HUNTLEY STW 0 0 0
Dwr Cymru Welsh Water River Wye LOWER LYDBROOK RIVER WYE CSO 0 0 98.2
Severn Trent Water Westbury Brook LITTLEDEAN STW 0 0 100
Dwr Cymru Welsh Water River Wye JOYFORD MILL PUMPING STATION 0 0 0

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.