Top of the Poops | Constituency Sewage Map | Clwyd East

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Live data for Clwyd East in 2026

So far this year (as of 26 Oct 2026, 05:15) there has been 5,474 hours of sewage overflows, from 85 CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway s

Totals for Clwyd East in 2025

78 Sites polluted by Dwr Cymru Welsh Water

1,317 sewage dumps

7,038 hours duration

Sewage pollution map of Clwyd East: 1,317 spills in 2025, lasting 7,038 hours, by Dwr Cymru Welsh Water

That's 9.78 months. On average 3.6 times a day

Change Over Time

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Company	Waterway	Site	Sewage Dumps	Duration (Hours)	Reporting %
Dwr Cymru Welsh Water	River Clwyd	RUTHIN STW (FINAL)	93	1,262	99.9
Dwr Cymru Welsh Water	River Dee	LLANGOLLEN WWTW	50	455	99.9
Dwr Cymru Welsh Water	River Glanffyddion	DYSERTH WWTW	34	450	99.9
Dwr Cymru Welsh Water	River Alun	Leeswood Transfer SPS	40	404	99.9
Dwr Cymru Welsh Water	River Alyn	MOLD WwTW	56	359	99.8
Dwr Cymru Welsh Water	Unnamed W/C	HOLYWELL STRAND WALK NR STRAND	13	263	99.7
Dwr Cymru Welsh Water	Gutter Fawr	LLANASA PS CSO / EO	14	208	99.9
Dwr Cymru Welsh Water	River Cylflymen	CSO at THE REAR OF THE TANNERY	54	208	99.9
Dwr Cymru Welsh Water	River Camddwr	GWYDDELWERN PS. - EMERGENCY SC	15	202	99.9
Dwr Cymru Welsh Water	River Alyn	LLANARMON-YN-IAL STW	59	177	99.9
Dwr Cymru Welsh Water	Maescoed Drain	TALACRE STATION ROAD PS	25	167	99.6
Dwr Cymru Welsh Water	Dwr Ial	LLANFAIR DC STW	38	147	99.9
Dwr Cymru Welsh Water	Tan Lan Drains	CSO at Tanlan Bach Pumping Station	8	140	99.9
Dwr Cymru Welsh Water	River Dee	Abbey Road CSO	44	139	99.9
Dwr Cymru Welsh Water	Ffynnongroew Drain	FFYNNON WEST PS	9	137	99.9
Dwr Cymru Welsh Water	New Drain	STATION ROAD PS TALACRE	14	129	99.9
Dwr Cymru Welsh Water	River Alyn	CSO at Mynydd Isa Wylfa Hill	39	127	99.9
Dwr Cymru Welsh Water	Culverted Of Dee	MOSTYN DOCKS CAR PARK - SSO	9	124	99.9
Dwr Cymru Welsh Water	S W Sewer	MYNYDD ISA WATS DYKE AVE PS	23	118	99.9
Dwr Cymru Welsh Water	Sw System	DISCHARGE B 14 FFORDD DDYFRDWY	10	109	99
Dwr Cymru Welsh Water	River Alyn	CSO Mynydd Isa Chambers Lane/Mercia Drive Nr 2	48	102	79.3
Dwr Cymru Welsh Water	Prestatyn Gutter	PRESTATYN SPS MARINE RD EAST	15	93	99.9
Dwr Cymru Welsh Water	Glanfyddian Stream	LOWER DYSERTH PS	17	86	99.9
Dwr Cymru Welsh Water	Northop Brook	Northop Wastewater Treatment Works Settled Storm	6	82	100
Dwr Cymru Welsh Water	Surface Water System	MYNYDD ISA MOLD ROAD/MERCIA DR CSO	34	81	97.2
Dwr Cymru Welsh Water	Llanerchymor Gutter	MOSTYN NEAR FUN SHIP - SSO	18	80	96.9
Dwr Cymru Welsh Water	Prestatyn Gutter	Meliden Holding Tank - CSO	14	77	99.8
Dwr Cymru Welsh Water	River Alun	Mynydd Isa Chambers lane/Mercia Drive CSO	36	76	99.4
Dwr Cymru Welsh Water	Black Brook	Mold Bryn Awelon - CSO	12	68	99.9
Dwr Cymru Welsh Water	River Wheeler	CROOKED HORN SPS NO 3 BRYNFORD	21	63	99.6
Dwr Cymru Welsh Water	Northop Brook	NORTHOP WASTEWATER TREATMENT WORKS	12	59	99.9
Dwr Cymru Welsh Water	Alun	Llanferres SPS	6	59	99.8
Dwr Cymru Welsh Water	Dee	HAND HOTEL GARDENS CSO	44	58	99.9
Dwr Cymru Welsh Water	Wepre Brook	Northop Hall SPS	14	58	99.9
Dwr Cymru Welsh Water	Sluice House Gutter	LLANASA WWTW COLLIERY ROAD TANLAN	5	55	100
Dwr Cymru Welsh Water	River Dee	GREENFIELD IND EST NO 1 HOLYWELL	9	49	98.9
Dwr Cymru Welsh Water	Unnamed W/C	HOLYWELL PEN Y MAES RD/PEN Y M	56	47	98.8
Dwr Cymru Welsh Water	Nant Y Flint	PENTRE HALKYN SPS	10	45	99.9
Dwr Cymru Welsh Water	Marsiandwr	TAI TREVOR PS LLANNERCHYMOR	13	37	99.9
Dwr Cymru Welsh Water	River Dee	WEST STREET CSO	11	36	99.9
Dwr Cymru Welsh Water	River Alyn	Bridge Inn Pumping Station	12	36	90.1
Dwr Cymru Welsh Water	River Dee	PEN Y MAES PUMPING STATION	13	35	99.9
Dwr Cymru Welsh Water	River Alyn	PONTBLYDDYN NO 1 PUMPING STATION	3	27	99.9
Dwr Cymru Welsh Water	Culverted Of Dee	MOSTYN ARMS PS MOSTYN	4	26	99.8
Dwr Cymru Welsh Water	An Open Discharging To Prestatyn Gutter	Dyserth Bay SPS	5	23	99.6
Dwr Cymru Welsh Water	River Dee Estuary	DISCHARGE A 14 FFORDD DDYFRDWY	36	22	99.7
Dwr Cymru Welsh Water	River Alyn	CSO at Mold Gladstone St/Glan Yr Afon Rd	24	21	99.5
Dwr Cymru Welsh Water	Holywell Stream	GREENFIELD PARENT CSO HOLYWELL	19	21	98.8
Dwr Cymru Welsh Water	Dee Estuary	GREENFIELD WWTW (STW) GREENFIELD	13	18	99.9
Dwr Cymru Welsh Water	Prestatyn Gutter	CORONATION GARDENS PS	6	18	66.4
Dwr Cymru Welsh Water	Greenfield Valley	CSO Adjacent A548 Road Bridge	13	16	99.9
Dwr Cymru Welsh Water	River Alyn	CSO at Mold Committee's Sewerage System	17	14	99.9
Dwr Cymru Welsh Water	River Alun	LLANDEGLA CSO , ,	5	14	99.9
Dwr Cymru Welsh Water	Tref Y Nant Brook	Trefor Isaf - CSO	16	14	99.9
Dwr Cymru Welsh Water	Gutter Fawr	ARGOED PS	5	12	99.9
Dwr Cymru Welsh Water	Overflow Via Sewerage System S	PRESTATYN PURBECK PS	7	11	99.9
Dwr Cymru Welsh Water	Prestatyn Gutter	PRESTATYN MELIDEN ROAD - SSO	9	11	99.6
Dwr Cymru Welsh Water	Nant Brook Via A Ditch	Leeswood Bethania SPS	3	7	99.9
Dwr Cymru Welsh Water	Rhyl Cut	MARINE PARK PS	3	6	99.9
Dwr Cymru Welsh Water	Overflow Via Sewerage System S	PRESTATYN MALL PS	4	6	99.9
Dwr Cymru Welsh Water	River Alyn	Mold Gas Lane CSO	10	5	99.7
Dwr Cymru Welsh Water	River Dee Via Surface Water Sewer	BERWYN STREET CSO	5	3	99.5
Dwr Cymru Welsh Water	River Alyn	Mold Old St Davids Lane/Bridge St CSO	4	3	99.6
Dwr Cymru Welsh Water	River Alyn	Mold Football Club Drice CSO	4	2	99.6
Dwr Cymru Welsh Water	River Dee	Royal Hotel CSO	3	1	99.9
Dwr Cymru Welsh Water	River Dee	Llangollen East St CSO	5	1	99.7
Dwr Cymru Welsh Water	Surface Water Sewer	Northop Hall CSO	2	1	89.5
Dwr Cymru Welsh Water	River Dee	Llangollen Chruch St CSO	2	0	97.2
Dwr Cymru Welsh Water	Nant Y Flint	Lygan-Y-Wern Pentre Halkyn SPS	3	0	99.8
Dwr Cymru Welsh Water	River Alyn	Mold Argoed CSO	3	0	96.1
Dwr Cymru Welsh Water	River Dee	Llangollen Riverside Park Printing Works CSO	2	0	99.8
Dwr Cymru Welsh Water	River Dee	Llangollen Victoria Prom Riverside CSO	2	0	100
Dwr Cymru Welsh Water	River Wheeler	YSCEIFIOG CSO	2	0	99.9
Dwr Cymru Welsh Water	Unnamed W/C	GREENFIELD A548 NR ABBEY MILL	1	0	99.7
Dwr Cymru Welsh Water	Unnamed W/C	GWESPYR OLD STW - SSO	1	0	91.5
Dwr Cymru Welsh Water	River Dee	MARSH FARM PUMPING STATION	1	0	99.1
Dwr Cymru Welsh Water	River Dee	Park Avenue CSO	1	0	99.9
Dwr Cymru Welsh Water	River Y Garth	SWN Y DWR CSO	1	0	58.1
Dwr Cymru Welsh Water	Clwyd	Llandyrnog WWTW	0	0	99.9
Dwr Cymru Welsh Water	River Alyn	Mold Bryn Coch Lane/Lon Y Parc CSO	0	0	99.5
Dwr Cymru Welsh Water	Wheeler	Nannerch SPS	0	0	96
Dwr Cymru Welsh Water	Unnamed W/C	PEN Y FFORDD ADJ PEN Y FFORDD	0	0	63.3
Dwr Cymru Welsh Water	Nant Mill Stream	PRESTATYN NANT HALL PS NANT HALL RO	0	0	99.9
Dwr Cymru Welsh Water	Railway Ditch	PRESTATYN NANT HALL PS NANT HALL RO	0	0	99.9
Dwr Cymru Welsh Water	Overflow Via Sewage System Sur	PRESTATYN NANT PS	0	0	99.9
Dwr Cymru Welsh Water	Prestatyn Gutter	PRESTATYN SEVEN SISTERS ROAD SPS	0	0	99.9
Dwr Cymru Welsh Water	Dolfechlas Brook	RHYDYMWYN STW	0	0	0

Clwyd East

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Live data for Clwyd East in 2026

Totals for Clwyd East in 2025

78 Sites polluted by Dwr Cymru Welsh Water

Change Over Time

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