Top of the Poops | Constituency | Islwyn| Polluted by Dwr Cymru Welsh Water

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Constituency

✔ means we have experimental daily data since 2023

Totals for Islwyn in 2023

41 Sites polluted by Dwr Cymru Welsh Water

2,128 sewage dumps
11,051 h duration

That's 1.28 years! On average 5.8 times a day

Change Over Time

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Constituencies near Islwyn

Waterways in Islwyn

Pollution Summary 2023

Here are all the reported sewage overflow totals for Islwyn 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 2 of the total 47 CSO locations had reporting enabled for less than half the year, of which 2 had zero reporting.

Company	Waterway	Site	Sewage Dumps	Duration (Hours)	Reporting %
Dwr Cymru Welsh Water	River Ebbw	Tanybryn Risca CSO, Pontymister	115	1,479	98.7
Dwr Cymru Welsh Water	Sirhowy River	CSO 20 OLD MILL NEWPORT ROAD	141	1,404	99.8
Dwr Cymru Welsh Water	River Rhymney	CSO at Glan-yr-Afon Nursing Home No2, Pengam	121	1,080	98.8
Dwr Cymru Welsh Water	River Rhymney	Tredomen AFC CSO, Ystrad Mynach	95	1,045	100
Dwr Cymru Welsh Water	River Ebbw	Crosskeys Waunfawr Park CSO	104	1,023	96.3
Dwr Cymru Welsh Water	Ebbw River	CSO 36 CWMCARN HIGH SCHOOL CHAPEL F	78	684	100
Dwr Cymru Welsh Water	River Bargoed	Bedwellty Road CSO	159	611	74.6
Dwr Cymru Welsh Water	River Sirhowy	Springfield Est CSO, Pontllanfraith	119	574	97.9
Dwr Cymru Welsh Water	River Sirhowy	CSO 42 92 Tredegar St Cross Keys	57	560	100
Dwr Cymru Welsh Water	River Sirhowy	Bottom of Nine Mile Point Colliery CSO	49	324	95.7
Dwr Cymru Welsh Water	Nant Carn Brook	Pontywaun CSO, Newport	71	307	97
Dwr Cymru Welsh Water	River Rhymney	CSO at Glan-yr-Afon Nursing Home 1	101	245	99.3
Dwr Cymru Welsh Water	River Rymney	MAESYCWMMER A472 JUNCTION CSO	83	203	99.4
Dwr Cymru Welsh Water	Sirhowy River	Blackwood Cwmgelli CSO	60	163	85.7
Dwr Cymru Welsh Water	River Rhymney	TRELYN LANE CSO FLEUR-DE-LIS	17	140	9.9
Dwr Cymru Welsh Water	Sirhowy River	WVTS - Wattsville (Recreation Ground) CSO	55	129	98.6
Dwr Cymru Welsh Water	Sirhowy River	Blackwood Oakdale Rhiw Hill CSO	72	123	98.1
Dwr Cymru Welsh Water	River Sirhowy	Old Tram Rd CSO, Pontllanfraith	59	113	99.7
Dwr Cymru Welsh Water	Sirhowy River	CSO 19 Gryphonn Concrete Products	80	111	99.9
Dwr Cymru Welsh Water	River Ebbw	CSO 33 REAR BRYNGWYN ROAD/HIGH ST	61	108	97.8
Dwr Cymru Welsh Water	River Rhymney	CSO Opposite Bowen Ind Estate, Aberbargoed	35	103	97
Dwr Cymru Welsh Water	Sirhowy River	WVTS-WYLLIE HALT SSO	39	94	98.6
Dwr Cymru Welsh Water	River Rhymney	CSO at Pengham High St near Bridge	42	73	98.3
Dwr Cymru Welsh Water	Sirhowy River	CSO CWM ROAD ARGOED CAERPHILLY	23	54	99.7
Dwr Cymru Welsh Water	Nant Gwyddon Via Surface Water Sewer And A Culvert	High Street CSO, Abercarn	47	51	99.9
Dwr Cymru Welsh Water	River Sirhowy	CSO 16 Woodfield Row Blackwood	22	44	100
Dwr Cymru Welsh Water	Ebbw Fawr	CRUMLIN SWFFRYD CSO CAERPHILLY	52	42	73.9
Dwr Cymru Welsh Water	Sirhowy River	Markham Colliery Gun Club CSO	9	34	100
Dwr Cymru Welsh Water	River Ebbw	S/O 108 Commercial St, Risca CSO	41	31	99.3
Dwr Cymru Welsh Water	Ebbw Fawr River	21 Gladstone St CSO, Crosskeys	26	26	98.6
Dwr Cymru Welsh Water	River Rhymney	CSO ASSET NO 90411 PENGAM	35	21	99.7
Dwr Cymru Welsh Water	River Ebbw	MALVERN TERRACE CSO	15	11	100
Dwr Cymru Welsh Water	Rhynys Brook	4 Tredegar Terrace CSO	4	9	39
Dwr Cymru Welsh Water	River Ebbw	WVTS-North Celynen Colliery CSO	5	6	99.7
Dwr Cymru Welsh Water	River Bargoed	63 Bedwellty Rd CSO	15	4	96.8
Dwr Cymru Welsh Water	River Ebbw	R/O Cobden St CSO, Crosskeys	1	3	100
Dwr Cymru Welsh Water	River Ebbw	WVTS - NEWBRIDGE CSO CAERPHILLY	6	1	100
Dwr Cymru Welsh Water	River Sirhowy	Islwyn Rd CSO, Crosskeys	6	1	94.9
Dwr Cymru Welsh Water	Rhynys Brook	Rifleman St CSO, Risca	6	1	98.2
Dwr Cymru Welsh Water	River Rhymney	CSO at Trelyn Park	1	0	99.9
Dwr Cymru Welsh Water	River Rhymney	Rear of Williams St CSO	1	0	100
Dwr Cymru Welsh Water	River Sirhowy	CSO at Hollybush - Ancient Druid	0	0	0
Dwr Cymru Welsh Water	River Sirhowy	Blackwood 100 Steps CSO	0	0	0
Dwr Cymru Welsh Water	River Rhymney	Aberbargoed CSO	0	0	100
Dwr Cymru Welsh Water	Rhymney	Bargoed Colliery CSO	0	0	100
Dwr Cymru Welsh Water	River Sirhowy	Railway Cottages CSO, Cwmfelinfach	0	0	100
Dwr Cymru Welsh Water	River Rhymney	OLD PRINCE ALBERT HOTEL HENGOED	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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Islwyn was polluted by sewage 2,128 times in 2023 lasting 11,051 hours - that's 1.28 years! - but monitoring was disabled in some locations, so could be more

41 Sites polluted by Dwr Cymru Welsh Water

Pollution Summary 2023

Data Sources & Accuracy

Media Queries

Please Support Us

Islwyn was polluted by sewage 2,128 times in 2023
lasting 11,051 hours - that's 1.28 years!
- but monitoring was disabled in some locations, so could be more