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Pollution Summary 2023

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	MH NEAR BONSALL CROSS	0	0	97.8
Severn Trent Water	River Derwent	NEAR MASSON HILL	0	0	0

River Derwent polluted by sewage 2,732 times in 2023 - lasting 16,576 hours

64 Sites polluted by Severn Trent Water

Pollution Summary 2023

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