Top of the Poops | Waterway | River Derwent | Polluted by Severn Trent Water

Pollution Summary 2025

Here are all the reported sewage overflow totals for River Derwent in 2025. Sometimes sewage can be being dumped for months at a time.

Company	Waterway	Site	Sewage Dumps	Duration (Hours)	Reporting %
Severn Trent Water	River Derwent	MATLOCK LEA STW	77	1,281	100
Severn Trent Water	River Derwent	WHATSTANDWELL STW	58	986	100
Severn Trent Water	River Derwent	MATLOCK BATH - DALE ROAD (COAL ME-	118	976	100
Severn Trent Water	River Derwent	BASLOW STW	86	915	100
Severn Trent Water	River Derwent	DARLEY DALE NO 11 CSO	84	803	99.9
Severn Trent Water	River Derwent	DUFFIELD STW	57	657	99.1
Severn Trent Water	River Derwent	DERBY SEWAGE TREATMENT WORKS	49	458	100
Severn Trent Water	River Derwent	HATHERSAGE STW	58	451	100
Severn Trent Water	River Derwent	BELPER SEWAGE TREATMENT WORKS	44	373	100
Severn Trent Water	River Derwent	THE RAILWAY LINE CSO	67	337	99.9
Severn Trent Water	River Derwent	DALE ROAD NORTH CSO	71	314	99.6
Severn Trent Water	River Derwent	CSO @ DARLEY BRIDGE PUMPING STATION	63	299	100
Severn Trent Water	River Derwent	GREEN LANE PUMPING STATION	53	295	99.1
Severn Trent Water	River Derwent	DARLEY BRIDGE CSO	52	217	97.8
Severn Trent Water	River Derwent	ALVASTON CSO	47	197	100
Severn Trent Water	River Derwent	AMBERGATE PS - STORM/EMERGENCY O/F	30	183	99.7
Severn Trent Water	River Derwent	AREAS MILFORD & BELPER/SM & EM O/F	98	180	98.75
Severn Trent Water	River Derwent	DALE ROAD NORTH (RLWY) CSO	44	177	99.7
Severn Trent Water	River Derwent	KEDLESTON ROAD CSO	46	146	100
Severn Trent Water	River Derwent	DRAYCOTT SPS - EMERGENCY OVERFLOW	31	141	64.8
Severn Trent Water	River Derwent	OKER-SNITTERTON-SNITTERTON ROAD SPS	21	110	100
Severn Trent Water	River Derwent	OPPOSITE THE LODGE CSO	32	102	100
Severn Trent Water	River Derwent	OFF STONEY GATE ROAD CSO	39	87	100
Severn Trent Water	River Derwent	RAILWAY BRIDGE/DALE ROAD CSO	23	86	98.8
Severn Trent Water	River Derwent	EASTGATE PENTAGON ISLAND CSO	15	83	100
Severn Trent Water	River Derwent	DARLEY DALE - FOUR ENDS SPS	16	70	100
Severn Trent Water	River Derwent	DALE RD SOUTH-OFF OLD HACKNEY LANE	25	70	100
Severn Trent Water	River Derwent	BARGATE ROAD CSO	12	69	100
Severn Trent Water	River Derwent	STATION APPROACH CSO	30	61	99.9
Severn Trent Water	River Derwent	DERBY ROAD	31	60	96.3
Severn Trent Water	River Derwent	BRIDGE FOOT COMBINED SEWER OVERFLOW	18	57	100
Severn Trent Water	River Derwent	DERBY ROAD CSO	37	56	91.8
Severn Trent Water	River Derwent	MATLOCK MH79 UDC - IMPERIAL ROAD CS	37	52	100
Severn Trent Water	River Derwent	WAYZGOOSE COMBINED SEWER OVERFLOW	20	46	100
Severn Trent Water	River Derwent	RIDDINGS LANE CSO	48	41	99.3
Severn Trent Water	River Derwent	CARBOLITE CSO	23	40	99.8
Severn Trent Water	River Derwent	SANDRINGHAM DRIVE CSO	28	40	100
Severn Trent Water	River Derwent	LIME GROVE WALK/BANK ROAD PO CSO	61	33	100
Severn Trent Water	River Derwent	MH AT JUNCTION OF BLACK TOR ROAD	22	32	93.3
Severn Trent Water	River Derwent	ANGLERS LANE CSO	7	32	100
Severn Trent Water	River Derwent	BRIDGE HILL/BELPER LANE CSO	46	31	100
Severn Trent Water	River Derwent	WILMORTON COLLEGE/HARROW STREET CSO	21	25	92.1
Severn Trent Water	River Derwent	NOTTINGHAM ROAD CSO	17	22	100
Severn Trent Water	River Derwent	BRIDGE STREET CSO	35	20	100
Severn Trent Water	River Derwent	BROADHOLME PUMPING STATION	6	20	96.1
Severn Trent Water	River Derwent	ENDSOR SEWAGE P S	8	19	100
Severn Trent Water	River Derwent	DARLEY ABBEY CSO	8	12	100
Severn Trent Water	River Derwent	ALLESTREE SEWAGE PUMPING STATION	3	8	100
Severn Trent Water	River Derwent	CASTLE ORCHARD CSO	4	6	100
Severn Trent Water	River Derwent	HOMESFORD SEWAGE PUMPING STN	9	5	99
Severn Trent Water	River Derwent	BRIDGE STREET-FIELD LANE JCN CSO	11	2	100
Severn Trent Water	River Derwent	BONSALL DALE MH AT JUNCTION	3	1	98.8
Severn Trent Water	River Derwent	MEADOW ROAD SPS	1	1	100
Severn Trent Water	River Derwent	BANK ROAD COMBINED SEWER OVERFLOW	4	1	100
Severn Trent Water	River Derwent	STATION ROAD CSO	6	0	98.8
Severn Trent Water	River Derwent	NORTHWOOD LANE CSO	4	0	91.4
Severn Trent Water	River Derwent	DERBY ROAD CSO	4	0	100
Severn Trent Water	River Derwent	THE FLEET COMBINED SEWER OVERFLOW	2	0	84.7
Severn Trent Water	River Derwent	MH NEAR BONSALL CROSS	1	0	98.7
Severn Trent Water	River Derwent	DERBY ROAD/NEWBRIDGE ROAD JCT CSO	0	0	100
Severn Trent Water	River Derwent	DARLEY ABBEY/ALLESTREE SW-STM/EMG	0	0	100
Severn Trent Water	River Derwent	BAKEWELL ROAD / DIMPLE ROAD CSO	0	0	100
Severn Trent Water	River Derwent	MH NR STARKHOLMES FOOTBRIDGE	0	0	0
Severn Trent Water	River Derwent	SEWER MH CROMFORD MEADOWS	0	0	100
Severn Trent Water	River Derwent	SEWER MH WOODEND LEA ROAD	0	0	100
Severn Trent Water	River Derwent	BRIDGE INN/RAILWAY CROSSING - O/F	0	0	100
Severn Trent Water	River Derwent	CASTLE ORCHARD PUMPING STATION	0	0	100

It's a Dirty Business

River Derwent polluted by sewage 1,971 times in 2025 - lasting 10,811 hours

59 Sites polluted by Severn Trent Water

Pollution Summary 2025

Data Sources & Accuracy

Media Queries

Please Support Us