Here are all the reported sewage overflow totals for River Derwent in 2023. Sometimes sewage can be being dumped for months at a time.
These numbers are very slightly different from the Rivers page. We're working on it.
Company | Waterway | Site | Sewage Dumps | Duration (Hours) | Reporting % |
---|---|---|---|---|---|
Severn Trent Water | River Derwent | DUFFIELD STW | 139 | 1,749 | 100 |
Severn Trent Water | River Derwent | BASLOW STW | 115 | 1,684 | 57.2 |
Severn Trent Water | River Derwent | DERBY SEWAGE TREATMENT WORKS | 96 | 1,083 | 99.8 |
Severn Trent Water | River Derwent | RIDDINGS LANE CSO | 123 | 1,071 | 97.2 |
Severn Trent Water | River Derwent | DARLEY DALE NO 11 CSO | 95 | 955 | 98.9 |
Severn Trent Water | River Derwent | WHATSTANDWELL STW | 57 | 852 | 82.8 |
Severn Trent Water | River Derwent | HATHERSAGE STW | 62 | 725 | 37 |
Severn Trent Water | River Derwent | DARLEY BRIDGE CSO | 83 | 645 | 100 |
Severn Trent Water | River Derwent | MATLOCK BATH - DALE ROAD (COAL ME- | 117 | 640 | 99.9 |
Severn Trent Water | River Derwent | AREAS MILFORD & BELPER/SM & EM O/F | 173 | 586 | 94.17 |
Severn Trent Water | River Derwent | ALVASTON CSO | 82 | 575 | 100 |
Severn Trent Water | River Derwent | MATLOCK LEA STW | 44 | 527 | 98 |
Severn Trent Water | River Derwent | THE RAILWAY LINE CSO | 80 | 447 | 91 |
Severn Trent Water | River Derwent | DALE ROAD NORTH CSO | 71 | 419 | 74.7 |
Severn Trent Water | River Derwent | SEWER MH CROMFORD MEADOWS | 30 | 303 | 96.2 |
Severn Trent Water | River Derwent | KEDLESTON ROAD CSO | 88 | 284 | 100 |
Severn Trent Water | River Derwent | AMBERGATE PS - STORM/EMERGENCY O/F | 37 | 265 | 64.4 |
Severn Trent Water | River Derwent | GREEN LANE PUMPING STATION | 40 | 257 | 83.1 |
Severn Trent Water | River Derwent | DARLEY DALE - FOUR ENDS SPS | 54 | 240 | 99.7 |
Severn Trent Water | River Derwent | RAILWAY BRIDGE/DALE ROAD CSO | 72 | 203 | 100 |
Severn Trent Water | River Derwent | CSO @ DARLEY BRIDGE PUMPING STATION | 36 | 199 | 98.4 |
Severn Trent Water | River Derwent | DALE ROAD NORTH (RLWY) CSO | 54 | 199 | 95.3 |
Severn Trent Water | River Derwent | MH AT JUNCTION OF BLACK TOR ROAD | 27 | 196 | 98.9 |
Severn Trent Water | River Derwent | BELPER SEWAGE TREATMENT WORKS | 12 | 188 | 98.4 |
Severn Trent Water | River Derwent | EASTGATE PENTAGON ISLAND CSO | 34 | 187 | 99.1 |
Severn Trent Water | River Derwent | OPPOSITE THE LODGE CSO | 59 | 178 | 98.4 |
Severn Trent Water | River Derwent | BRIDGE STREET CSO | 97 | 147 | 92.3 |
Severn Trent Water | River Derwent | DERBY ROAD CSO | 57 | 130 | 96.9 |
Severn Trent Water | River Derwent | CARBOLITE CSO | 32 | 124 | 100 |
Severn Trent Water | River Derwent | OKER-SNITTERTON-SNITTERTON ROAD SPS | 32 | 118 | 99 |
Severn Trent Water | River Derwent | STATION APPROACH CSO | 46 | 112 | 98.7 |
Severn Trent Water | River Derwent | SANDRINGHAM DRIVE CSO | 44 | 110 | 98.9 |
Severn Trent Water | River Derwent | WAYZGOOSE COMBINED SEWER OVERFLOW | 33 | 101 | 96.1 |
Severn Trent Water | River Derwent | DALE RD SOUTH-OFF OLD HACKNEY LANE | 37 | 95 | 100 |
Severn Trent Water | River Derwent | DRAYCOTT SPS - EMERGENCY OVERFLOW | 9 | 89 | 97.5 |
Severn Trent Water | River Derwent | BRIDGE FOOT COMBINED SEWER OVERFLOW | 16 | 86 | 85.1 |
Severn Trent Water | River Derwent | BRIDGE STREET-FIELD LANE JCN CSO | 81 | 78 | 99.9 |
Severn Trent Water | River Derwent | CHURCH ROAD CSO | 35 | 76 | 97.9 |
Severn Trent Water | River Derwent | BROADHOLME PUMPING STATION | 13 | 70 | 88.4 |
Severn Trent Water | River Derwent | MH NR STARKHOLMES FOOTBRIDGE | 22 | 59 | 77.5 |
Severn Trent Water | River Derwent | DERBY ROAD CSO | 18 | 55 | 99.85 |
Severn Trent Water | River Derwent | ENDSOR SEWAGE P S | 20 | 50 | 100 |
Severn Trent Water | River Derwent | ANGLERS LANE CSO | 13 | 50 | 99.8 |
Severn Trent Water | River Derwent | ALLESTREE SEWAGE PUMPING STATION | 18 | 49 | 100 |
Severn Trent Water | River Derwent | MATLOCK MH79 UDC - IMPERIAL ROAD CS | 41 | 43 | 97.7 |
Severn Trent Water | River Derwent | NOTTINGHAM ROAD CSO | 24 | 40 | 93.5 |
Severn Trent Water | River Derwent | LIME GROVE WALK/BANK ROAD PO CSO | 13 | 34 | 95.4 |
Severn Trent Water | River Derwent | HOMESFORD SEWAGE PUMPING STN | 11 | 32 | 99.9 |
Severn Trent Water | River Derwent | MEADOW ROAD SPS | 2 | 31 | 93.1 |
Severn Trent Water | River Derwent | DARLEY ABBEY CSO | 35 | 19 | 98 |
Severn Trent Water | River Derwent | DERBY ROAD | 18 | 18 | 98.7 |
Severn Trent Water | River Derwent | BARGATE ROAD CSO | 5 | 17 | 98.6 |
Severn Trent Water | River Derwent | DARLEY ABBEY/ALLESTREE SW-STM/EMG | 27 | 15 | 94.2 |
Severn Trent Water | River Derwent | WILMORTON COLLEGE/HARROW STREET CSO | 17 | 14 | 98.8 |
Severn Trent Water | River Derwent | CASTLE ORCHARD PUMPING STATION | 4 | 12 | 100 |
Severn Trent Water | River Derwent | DERBY ROAD/NEWBRIDGE ROAD JCT CSO | 2 | 5 | 100 |
Severn Trent Water | River Derwent | BONSALL DALE MH AT JUNCTION | 3 | 5 | 64 |
Severn Trent Water | River Derwent | BAKEWELL ROAD / DIMPLE ROAD CSO | 11 | 3 | 89.1 |
Severn Trent Water | River Derwent | NORTHWOOD LANE CSO | 6 | 2 | 98.6 |
Severn Trent Water | River Derwent | STATION ROAD CSO | 4 | 0 | 93.3 |
Severn Trent Water | River Derwent | SEWER MH WOODEND LEA ROAD | 1 | 0 | 97 |
Severn Trent Water | River Derwent | BANK ROAD COMBINED SEWER OVERFLOW | 2 | 0 | 87.5 |
Severn Trent Water | River Derwent | CASTLE ORCHARD CSO | 1 | 0 | 99.9 |
Severn Trent Water | River Derwent | THE FLEET COMBINED SEWER OVERFLOW | 2 | 0 | 46.6 |
Severn Trent Water | River Derwent | NEAR MASSON HILL | 0 | 0 | 0 |
Severn Trent Water | River Derwent | MH NEAR BONSALL CROSS | 0 | 0 | 97.8 |
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.