Wrexham was polluted by sewage 1,570 times in 2024
lasting 10,732 hours - that's 1.24 years!
- but monitoring was disabled in some locations, so could be more

Constituency

Select the constituency from the drop-down

✔ means we have experimental daily data since 2023

Totals for Wrexham in 2024

33 Sites polluted by Dwr Cymru Welsh Water

1,570 sewage dumps
10,732 h duration

That's 1.24 years! On average 4.3 times a day

Change Over Time

Take Action

Your local MP is Andrew Ranger (Labour) - Find out more about their interests, donors, and voting at They Work For You

Constituencies near Wrexham

Waterways in Wrexham

Pollution Summary 2024

Here are all the reported sewage overflow totals for Wrexham 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 1 of the total 37 CSO locations had reporting enabled for less than half the year, of which 1 had zero reporting.

Company	Waterway	Site	Sewage Dumps	Duration (Hours)	Reporting %
Dwr Cymru Welsh Water	Lavister Brook	Storm Overflow at Lavister Wastewater Treatment Works	245	3,579	98.5
Dwr Cymru Welsh Water	River Dee	BANGOR ON DEE STW	104	1,488	99.9
Dwr Cymru Welsh Water	River Dee	FIVE FORDS STW	65	710	99.8
Dwr Cymru Welsh Water	Dee	HOLT STW	74	653	100
Dwr Cymru Welsh Water	River Alyn	GRESFORD STW	70	649	99.9
Dwr Cymru Welsh Water	Singret Brook	LLAY SINGRET (BOREEN CAM) CSO	90	459	88.8
Dwr Cymru Welsh Water	River Dee	OVERTON WWTW	122	367	100
Dwr Cymru Welsh Water	River Gwenfro	Talwrn Road No 2 CSO	87	326	99.2
Dwr Cymru Welsh Water	Clywedog	Coedpoeth Nant PS	46	280	99
Dwr Cymru Welsh Water	River Dee	Eyton Grove SPS	21	253	99.9
Dwr Cymru Welsh Water	Pulford Brook	Pulford CSO	57	247	98.4
Dwr Cymru Welsh Water	River Clywedog	Gwynfryn CSO	60	243	99.9
Dwr Cymru Welsh Water	River Alyn	llay Chapel Lane CSO, opposite Garden Centre	56	180	97.2
Dwr Cymru Welsh Water	River Gwenfro	Southsea Rollers Arms - CSO	28	161	99.9
Dwr Cymru Welsh Water	Nant Brook	Brymbo SPS CSO	30	159	99.9
Dwr Cymru Welsh Water	Alyn	BRADLEY OLD STW - SSO	54	148	99.9
Dwr Cymru Welsh Water	River Gwenfro	Settled Storm Overflow at Heol Y Fro	36	126	99.8
Dwr Cymru Welsh Water	Emral Brook	Penley Hospital SPS	34	116	99.9
Dwr Cymru Welsh Water	River Clywedog	LLWYN ONN CSO	53	115	99.9
Dwr Cymru Welsh Water	River Gwenfro	CSO NEAR MINAFON QUEENS PARK WREXH	33	89	97.6
Dwr Cymru Welsh Water	Gwersyllt Fishpond	Gwersyllt Glan Llyn (Fishpond) CSO	32	75	99.9
Dwr Cymru Welsh Water	River Gwenfro	CSO NR King’s Mills Queens Park WR	25	54	99.9
Dwr Cymru Welsh Water	River Clywedog	Ruthin/Berse Road Coedpoeth CSO	25	53	98.8
Dwr Cymru Welsh Water	River Gwenfro	Wrexham Maesglas SPS	22	50	98.6
Dwr Cymru Welsh Water	Dee	OVERTON WWTW (STORM)	10	41	100
Dwr Cymru Welsh Water	River Alun	Rossett Level Crossing CSO	27	39	60.4
Dwr Cymru Welsh Water	Gwenfro	Ruthin Rd CSO, Gegin	13	20	96.9
Dwr Cymru Welsh Water	River Alyn	Pandy SPS, Wrexham	11	17	99.8
Dwr Cymru Welsh Water	River Dee	Holt PS	17	14	99.8
Dwr Cymru Welsh Water	River Gwenfro	CSO O/S TOP RANK CLUB BROOK ST WREXHAM	8	3	99.1
Dwr Cymru Welsh Water	River Alyn	Cefn y Bedd PS	10	3	99.5
Dwr Cymru Welsh Water	Pond Adj	Wrexham Acton SPS	3	3	99.9
Dwr Cymru Welsh Water	River Gwenfro	New Broughton CSO	2	0	83.7
Dwr Cymru Welsh Water	Surface Water Sewer Adj To River Gwenfro	CSO Nr Rivulet Rd Queens Park Wrex	0	0	98.9
Dwr Cymru Welsh Water	Gwenfro	SEWERAGE SYSTEM WEST OF WEALDS CHES CSO	0	0	98.9
Dwr Cymru Welsh Water	Surface Water Sewer	CSO Adj Mount St/Yorke St	0	0	98.8
Dwr Cymru Welsh Water	River Cegidog	CSO at Woodland View Cefn Y Bedd	0	0	0

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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