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Pollution Summary 2024

Here are all the reported sewage overflow totals for River Cynon in 2024. Sometimes sewage can be being dumped for months at a time.

These numbers are very slightly different from the Rivers page. We're working on it.

Company	Waterway	Site	Sewage Dumps	Duration (Hours)	Reporting %
Dwr Cymru Welsh Water	River Cynon	MIKES FIELD CSO ABERAMAN	135	1,847	99.8
Dwr Cymru Welsh Water	River Cynon	PONTCYNON PIPE BRIDGE CSO ABERCYNON	106	1,276	98.1
Dwr Cymru Welsh Water	River Cynon	CSO ABERAMAN IND EST ABERAMAN	94	1,076	80.3
Dwr Cymru Welsh Water	River Cynon	CSO Opposite Arthurs Place Trecynon	120	1,014	99.8
Dwr Cymru Welsh Water	River Cynon	Penderyn CSO - Tank In Field Raked Scre	97	679	97.8
Dwr Cymru Welsh Water	River Cynon	CSO At Bottom Monk Street	88	477	99.8
Dwr Cymru Welsh Water	River Cynon	Oxford St CSO, Mountain Ash	107	457	98.3
Dwr Cymru Welsh Water	River Cynon	CSO at West Bank Of River South Of A455 Br	89	377	99.8
Dwr Cymru Welsh Water	River Cynon	CSO AT BOTTOM MONK STREET (Station St Aberdare)	83	273	99.8
Dwr Cymru Welsh Water	River Cynon	CSO Opposite Miskin Hotel, far side of railway	46	224	42.3
Dwr Cymru Welsh Water	River Cynon	Cwmbach CSO - Outside Bro Deg	75	213	97.8
Dwr Cymru Welsh Water	River Cynon	Glassbrook Terrace CSO, Penrhiwceiber	56	137	98.1
Dwr Cymru Welsh Water	River Cynon	Cwmbach Bro Deg Near No44	56	122	98.4
Dwr Cymru Welsh Water	River Cynon	NEWTOWN COMMUNITY HALL CSO	36	93	99
Dwr Cymru Welsh Water	River Cynon	Duffryn Rd Mount 2 CSO	28	86	99
Dwr Cymru Welsh Water	River Cynon	Aberaman Curre St CSO	35	56	99.5
Dwr Cymru Welsh Water	River Cynon	HIRWAUN - REAR OF BUTE TERRACE	20	53	99.3
Dwr Cymru Welsh Water	River Cynon	CSO at Hirwaun Trenant No 66 Rear of Garden	14	51	9.3
Dwr Cymru Welsh Water	River Cynon	CSO at Cwmbach Side of Police House	36	50	99.6
Dwr Cymru Welsh Water	River Cynon	Elizabeth St CSO	30	41	79.8
Dwr Cymru Welsh Water	River Cynon	Penrhiwceiber Point D CSO	37	39	96.6
Dwr Cymru Welsh Water	River Cynon	Canal Rd CSO, Cwmbach	15	37	98.7
Dwr Cymru Welsh Water	River Cynon	ABERNANT RUGBY CLUB CSO	29	36	99.8
Dwr Cymru Welsh Water	River Cynon	CSO at Rear of No12 Bonhaul, Cwmbach	15	35	98.9
Dwr Cymru Welsh Water	River Cynon	CSO at Aberaman	16	34	99.7
Dwr Cymru Welsh Water	River Cynon	Cwmbach SPS	6	28	99.8
Dwr Cymru Welsh Water	River Cynon	Cwmbach Sion Terrace No 11 CSO	17	17	99.1
Dwr Cymru Welsh Water	River Cynon	Penywaun - Rear Of 37/39 Erw L	13	7	98.1
Dwr Cymru Welsh Water	River Cynon	Abercwmboi Parkview Capcoch Infant School CSO	11	6	98.9
Dwr Cymru Welsh Water	River Cynon	No. 29 Maeshyfryd CSO, Cwmbach	7	4	99.4
Dwr Cymru Welsh Water	River Cynon	CSO at Rear Of St Winifreds Church Hirwa	3	4	99.6
Dwr Cymru Welsh Water	River Cynon	TOWN HALL	2	4	99.8
Dwr Cymru Welsh Water	River Cynon	CSO at Cwmbach Bryngolwg No 45	3	3	99.4
Dwr Cymru Welsh Water	River Cynon	No 1 Wellington St CSO, Robertstown	1	1	42.1
Dwr Cymru Welsh Water	River Cynon	Cwmpennar CSO, Adj Low Rd, Mountain Ash	2	1	59.3
Dwr Cymru Welsh Water	River Cynon	Pentre - Llewellyn Street CSO	2	0	98.8
Dwr Cymru Welsh Water	River Cynon	CSO at Hirwaun Trenant No70 Rear of Garden	0	0	0
Dwr Cymru Welsh Water	River Cynon	Abercynon Rugby Club CSO	0	0	96.9
Dwr Cymru Welsh Water	River Cynon	No 10 Hamilton St CSO, Mountain Ash	0	0	17.7
Dwr Cymru Welsh Water	River Cynon	CSO Meadow Street Pontycymmer	0	0	35.5

River Cynon polluted by sewage 1,530 times in 2024 - lasting 8,870 hours

36 Sites polluted by Dwr Cymru Welsh Water

Pollution Summary 2024

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