Wrexham was polluted by sewage 717 times in 2023
lasting 3,782 hours
- but monitoring was disabled in some locations, so could be more

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Constituency

✔ means we have experimental daily data since 2023

Totals for Wrexham in 2023

20 Sites polluted by Dwr Cymru Welsh Water

717 sewage dumps
3,782 h duration

That's 5.25 months. On average 2 times a day

Change Over Time

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Constituencies near Wrexham

Waterways in Wrexham

Pollution Summary 2023

Here are all the reported sewage overflow totals for Wrexham in 2023. 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 23 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	172	2,113	97.3
Dwr Cymru Welsh Water	Dee	HOLT STW	63	406	100
Dwr Cymru Welsh Water	Singret Brook	LLAY SINGRET (BOREEN CAM) CSO	88	241	95
Dwr Cymru Welsh Water	River Alyn	GRESFORD STW	23	172	99.8
Dwr Cymru Welsh Water	Alyn	BRADLEY OLD STW - SSO	51	118	100
Dwr Cymru Welsh Water	Pulford Brook	Pulford CSO	39	115	99.6
Dwr Cymru Welsh Water	River Gwenfro	CSO NEAR MINAFON QUEENS PARK WREXH	53	99	100
Dwr Cymru Welsh Water	River Alyn	llay Chapel Lane CSO, opposite Garden Centre	43	94	98.3
Dwr Cymru Welsh Water	River Clywedog	LLWYN ONN CSO	38	93	100
Dwr Cymru Welsh Water	River Gwenfro	Wrexham Maesglas SPS	24	71	99.5
Dwr Cymru Welsh Water	River Dee	Holt PS	19	70	99.9
Dwr Cymru Welsh Water	River Alyn	Cefn y Bedd PS	21	50	97.2
Dwr Cymru Welsh Water	Gwersyllt Fishpond	Gwersyllt Glan Llyn (Fishpond) CSO	19	46	100
Dwr Cymru Welsh Water	River Gwenfro	CSO NR King’s Mills Queens Park WR	18	40	100
Dwr Cymru Welsh Water	River Gwenfro	CSO O/S TOP RANK CLUB BROOK ST WREXHAM	20	22	100
Dwr Cymru Welsh Water	River Alyn	Pandy SPS, Wrexham	16	20	99.4
Dwr Cymru Welsh Water	Pond Adj	Wrexham Acton SPS	4	2	99.8
Dwr Cymru Welsh Water	Surface Water Sewer	CSO Adj Mount St/Yorke St	2	1	100
Dwr Cymru Welsh Water	Surface Water Sewer Adj To River Gwenfro	CSO Nr Rivulet Rd Queens Park Wrex	2	1	100
Dwr Cymru Welsh Water	Plas Devon Brook	HOLT STW	2	0	100
Dwr Cymru Welsh Water	Gwenfro	SEWERAGE SYSTEM WEST OF WEALDS CHES CSO	0	0	96.4
Dwr Cymru Welsh Water	River Cegidog	CSO at Woodland View Cefn Y Bedd	0	0	58
Dwr Cymru Welsh Water	River Alun	Rossett Level Crossing CSO	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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