Top of the Poops | Place | Y Coed Duon| Polluted by Dwr Cymru Welsh Water

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Totals for Y Coed Duon in 2024

16 Sites polluted by Dwr Cymru Welsh Water

778 sewage dumps

3,484 hours duration

That's 4.84 months. On average 2.1 times a day

Change Over Time

Waterways in Y Coed Duon

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Pollution Summary 2024

Here are all the reported sewage overflow totals for Y Coed Duon 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 locality 2 of the total 18 CSO locations had reporting enabled for less than half the year.

Company	Waterway	Site	Sewage Dumps	Duration (Hours)	Reporting %
Dwr Cymru Welsh Water	River Rhymney	CSO at Glan-yr-Afon Nursing Home No2, Pengam	119	1,138	87.4
Dwr Cymru Welsh Water	River Sirhowy	Springfield Est CSO, Pontllanfraith	112	882	96.7
Dwr Cymru Welsh Water	River Rhymney	CSO at Glan-yr-Afon Nursing Home 1	93	320	99
Dwr Cymru Welsh Water	River Rhymney	CSO Opposite Bowen Ind Estate, Aberbargoed	37	250	96.2
Dwr Cymru Welsh Water	River Rhymney	Tir-y-Berth behind William St	67	197	98.5
Dwr Cymru Welsh Water	River Sirhowy	Old Tram Rd CSO, Pontllanfraith	55	163	95.5
Dwr Cymru Welsh Water	River Rhymney	TRELYN LANE CSO FLEUR-DE-LIS	33	125	86.8
Dwr Cymru Welsh Water	River Rhymney	CSO at Pengham High St near Bridge	56	121	99.1
Dwr Cymru Welsh Water	River Sirhowy	Blackwood 100 Steps CSO	36	59	71.8
Dwr Cymru Welsh Water	River Rhymney	CSO at rear of Margaret St., Gilfach	34	57	98.7
Dwr Cymru Welsh Water	River Sirhowy	CSO 16 Woodfield Row Blackwood	36	54	99.8
Dwr Cymru Welsh Water	Sirhowy River	Blackwood Cwmgelli CSO	26	53	37.9
Dwr Cymru Welsh Water	River Rhymney	CSO ASSET NO 90411 PENGAM	47	36	96.9
Dwr Cymru Welsh Water	River Rhymney	High St CSO, Glan-y-Nant	20	19	99.8
Dwr Cymru Welsh Water	Rhymney R - Nant Bargod Rhymni To Conf Nant Cyl	Fleur-de-Lys - Rear of Glanddu CSO	5	4	98.9
Dwr Cymru Welsh Water	River Rhymney	CSO at Trelyn Park	2	1	99.3
Dwr Cymru Welsh Water	River Rhymney	Rear of Williams St CSO	0	0	99.7
Dwr Cymru Welsh Water	Sirhowy River	Blackwood Oakdale Rhiw Hill CSO	0	0	46.9

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. Live sewage data from Stream Water API

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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© 2020-2025 Top-Of-The-Poops CC-BY-SA 4.0,
© Openstreetmap contributors, Contains OS data © Crown copyright and database right 2021-2025,
Contains Water UK National Storm Overflow Hub Data CC-BY-SA 4.0 and analysis © 2025 Top-Of-The-Poops

Some data reproduced under Open Government Licence

Y Coed Duon Polluted by sewage 778 times in 2024 lasting 3,484 hours Monitoring fell below 50% in some locations so could be more

Y Coed Duon