Clwyd East

Polluted by sewage 2,091 times in 2024 lasting 11,093 hours - That's 1.28 years!

Monitoring was disabled in some locations, so could be more

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Constituency

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✔ means we have experimental daily data since 2023

Totals for Clwyd East in 2024

68 Sites polluted by Dwr Cymru Welsh Water

2,091 sewage dumps

11,093 hours duration

That's 1.28 years! On average 5.7 times a day

Change Over Time

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Constituencies near Clwyd East

Waterways in Clwyd East

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Pollution Summary 2024

Here are all the reported sewage overflow totals for Clwyd East in 2024. 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 5 of the total 75 CSO locations had reporting enabled for less than half the year. Of these 1 had zero reporting.

Company	Waterway	Site	Sewage Dumps	Duration (Hours)	Reporting %
Dwr Cymru Welsh Water	River Clwyd	RUTHIN STW (FINAL)	107	1,298	99.9
Dwr Cymru Welsh Water	River Alyn	MOLD WwTW	106	1,079	99.6
Dwr Cymru Welsh Water	River Alun	Leeswood Transfer SPS	79	968	99.9
Dwr Cymru Welsh Water	River Dee	LLANGOLLEN WWTW	74	736	99.9
Dwr Cymru Welsh Water	Gutter Fawr	LLANASA PS CSO / EO	56	604	99.9
Dwr Cymru Welsh Water	Northop Brook	Northop Wastewater Treatment Works Settled Storm	66	455	99.9
Dwr Cymru Welsh Water	River Alyn	CSO Mynydd Isa Chambers Lane/Mercia Drive Nr 2	103	393	97.6
Dwr Cymru Welsh Water	River Alyn	CSO at Mynydd Isa Wylfa Hill	79	386	99.9
Dwr Cymru Welsh Water	River Alyn	LLANARMON-YN-IAL STW	84	352	99.9
Dwr Cymru Welsh Water	Dwr Ial	LLANFAIR DC STW	66	335	99.9
Dwr Cymru Welsh Water	S W Sewer	MYNYDD ISA WATS DYKE AVE PS	58	312	99.9
Dwr Cymru Welsh Water	River Dee	MARSH FARM PUMPING STATION	31	312	99.8
Dwr Cymru Welsh Water	River Alyn	Bridge Inn Pumping Station	28	305	79.8
Dwr Cymru Welsh Water	Tan Lan Drains	CSO at Tanlan Bach Pumping Station	26	299	99.9
Dwr Cymru Welsh Water	Prestatyn Gutter	PRESTATYN SPS MARINE RD EAST	44	275	99.8
Dwr Cymru Welsh Water	Alun	Llanferres SPS	20	272	99.8
Dwr Cymru Welsh Water	Nant Y Flint	PENTRE HALKYN SPS	31	258	99.9
Dwr Cymru Welsh Water	River Cylflymen	CSO at THE REAR OF THE TANNERY	49	188	99.9
Dwr Cymru Welsh Water	Surface Water System	MYNYDD ISA MOLD ROAD/MERCIA DR CSO	59	163	96.3
Dwr Cymru Welsh Water	Holywell Stream	GREENFIELD PARENT CSO HOLYWELL	90	161	86.5
Dwr Cymru Welsh Water	Dee	HAND HOTEL GARDENS CSO	71	144	99.9
Dwr Cymru Welsh Water	Llanerchymor Gutter	MOSTYN NEAR FUN SHIP - SSO	28	133	98.3
Dwr Cymru Welsh Water	River Dee	Abbey Road CSO	51	131	99.9
Dwr Cymru Welsh Water	Black Brook	Mold Bryn Awelon - CSO	34	126	99.9
Dwr Cymru Welsh Water	Overflow Via Sewerage System S	PRESTATYN PURBECK PS	25	125	99.9
Dwr Cymru Welsh Water	Sw System	DISCHARGE B 14 FFORDD DDYFRDWY	14	119	98.8
Dwr Cymru Welsh Water	River Glanffyddion	DYSERTH STW	39	105	99.9
Dwr Cymru Welsh Water	Wheeler	Nannerch SPS	21	102	58
Dwr Cymru Welsh Water	Greenfield Valley	CSO Adjacent A548 Road Bridge	46	102	99.9
Dwr Cymru Welsh Water	River Dee	PEN Y MAES PUMPING STATION	36	96	99.9
Dwr Cymru Welsh Water	Prestatyn Gutter	Meliden Holding Tank - CSO	17	89	97.8
Dwr Cymru Welsh Water	Unnamed W/C	HOLYWELL PEN Y MAES RD/PEN Y M	102	84	65.5
Dwr Cymru Welsh Water	Tref Y Nant Brook	Trefor Isaf - CSO	23	76	99.9
Dwr Cymru Welsh Water	Wepre Brook	Northop Hall SPS	18	72	99.9
Dwr Cymru Welsh Water	Nant Brook Via A Ditch	Leeswood Bethania SPS	11	44	99.9
Dwr Cymru Welsh Water	River Alyn	CSO at Mold Committee's Sewerage System	39	40	99.9
Dwr Cymru Welsh Water	River Alyn	Llanarmon yn Ial WwTW (Storm)	7	33	100
Dwr Cymru Welsh Water	River Dee	GREENFIELD IND EST NO 1 HOLYWELL	7	29	70.1
Dwr Cymru Welsh Water	River Alyn	PONTBLYDDYN NO 1 PUMPING STATION	8	26	99.9
Dwr Cymru Welsh Water	River Alun	LLANDEGLA CSO , ,	11	24	99.9
Dwr Cymru Welsh Water	Prestatyn Gutter	PRESTATYN MELIDEN ROAD - SSO	54	22	98.3
Dwr Cymru Welsh Water	An Open Discharging To Prestatyn Gutter	Dyserth Bay SPS	4	18	98.8
Dwr Cymru Welsh Water	Dolfechlas Brook	RHYDYMWYN STW	2	18	99.9
Dwr Cymru Welsh Water	River Alyn	CSO at Mold Gladstone St/Glan Yr Afon Rd	20	17	98.7
Dwr Cymru Welsh Water	River Alyn	Mold Gas Lane CSO	21	15	98.7
Dwr Cymru Welsh Water	River Camddwr	GWYDDELWERN PS. - EMERGENCY SC	2	14	6
Dwr Cymru Welsh Water	River Dee	Llangollen Riverside Park Printing Works CSO	3	14	84.8
Dwr Cymru Welsh Water	River Dee Estuary	DISCHARGE A 14 FFORDD DDYFRDWY	10	13	43.1
Dwr Cymru Welsh Water	River Alyn	Mold Football Club Drice CSO	8	13	98.3
Dwr Cymru Welsh Water	Dee Estuary	GREENFIELD WWTW (STW) GREENFIELD	20	13	100
Dwr Cymru Welsh Water	River Dee	Park Avenue CSO	3	12	99.9
Dwr Cymru Welsh Water	Maescoed Drain	TALACRE STATION ROAD PS	2	9	13.3
Dwr Cymru Welsh Water	River Dee Via Surface Water Sewer	BERWYN STREET CSO	8	7	99.9
Dwr Cymru Welsh Water	River Alun	Mynydd Isa Chambers lane/Mercia Drive CSO	11	7	98.9
Dwr Cymru Welsh Water	River Alyn	Mold Old St Davids Lane/Bridge St CSO	6	6	98.4
Dwr Cymru Welsh Water	River Dee	WEST STREET CSO	12	6	99.9
Dwr Cymru Welsh Water	Estuarial Waters Of River Dee	GREENFIELD WWTW (STW) GREENFIELD	10	4	100
Dwr Cymru Welsh Water	River Dee	Llangollen East St CSO	7	3	85.9
Dwr Cymru Welsh Water	River Dee	Royal Hotel CSO	2	2	99.9
Dwr Cymru Welsh Water	Surface Water Sewer	Northop Hall CSO	4	2	93.4
Dwr Cymru Welsh Water	Clwyd	Llandyrnog WWTW	3	2	99.9
Dwr Cymru Welsh Water	Nant Y Flint	Lygan-Y-Wern Pentre Halkyn SPS	5	1	99.8
Dwr Cymru Welsh Water	Unnamed W/C	GREENFIELD A548 NR ABBEY MILL	3	1	99.2
Dwr Cymru Welsh Water	Unnamed W/C	GWESPYR OLD STW - SSO	1	0	99.1
Dwr Cymru Welsh Water	River Dee	Llangollen Chruch St CSO	2	0	99.4
Dwr Cymru Welsh Water	River Alyn	Mold Bryn Coch Lane/Lon Y Parc CSO	2	0	98.2
Dwr Cymru Welsh Water	Overflow Via Sewage System Sur	PRESTATYN NANT PS	1	0	99.9
Dwr Cymru Welsh Water	Overflow Via Sewerage System S	PRESTATYN MALL PS	1	0	99.9
Dwr Cymru Welsh Water	River Wheeler	YSCEIFIOG CSO	0	0	99.9
Dwr Cymru Welsh Water	Unnamed W/C	HOLYWELL STRAND WALK NR STRAND	0	0	98.9
Dwr Cymru Welsh Water	River Dee	Llangollen Victoria Prom Riverside CSO	0	0	98.9
Dwr Cymru Welsh Water	Unnamed W/C	PEN Y FFORDD ADJ PEN Y FFORDD	0	0	18.9
Dwr Cymru Welsh Water	River Alyn	Mold Argoed CSO	0	0	99.2
Dwr Cymru Welsh Water	River Y Garth	SWN Y DWR CSO	0	0	0
Dwr Cymru Welsh Water	Dolfechlas Brook	Rhydymwyn Wastewater Treatment Works Storm Overflow	0	0	100

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.

Analysing sewage pollution by the Water Industry

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Clwyd East Polluted by sewage 2,091 times in 2024 lasting 11,093 hours - That's 1.28 years! Monitoring was disabled in some locations, so could be more

Clwyd East