Top of the Poops | Constituency - 2025 Data| Llanelli

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You're looking at the totals that we have calculated for sewage in Llanelli for 2025. It is an estimate, based on very poor quality live data from the Water Companies. This may not align with the 'official' reported sewage values from the water companies, which is reported in April following then end of the year - so 2025 numbers are reported in April 2026.

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Company	Site Name	Receiving Waterway	Overflow Days	Total Duration (hours)	Total Duration (days)
Dwr Cymru Welsh Water	Llannon WwTW Storm Overflow	Afon Morlais	129	2,523 h 45m	105.12
Dwr Cymru Welsh Water	Pontyberem WwTW Storm Overflow	Gwendraeth Fawr	119	2,171 h 59m	90.46
Dwr Cymru Welsh Water	Pembrey WwTW Storm Overflow	Unnamed Tributary of The Loughor Estuary	106	1,944 h 33m	81
Dwr Cymru Welsh Water	Trimsaran WwTW Storm Overflow	Gwendraeth Fawr	107	1,890 h 45m	78.75
Dwr Cymru Welsh Water	Carway WwTW Storm Overflow	Tributary of Gwendraeth Fawr	119	1,372 h 48m	57.17
Dwr Cymru Welsh Water	Crosshands WwTW Storm Overflow	River Gwili	76	1,354 h 18m	56.42
Dwr Cymru Welsh Water	Cwmtawel WwTW Storm Overflow	River Gwili	88	1,050 h 44m	43.75
Dwr Cymru Welsh Water	Mynydd Cerrig Storm Overflow	River Dulais	82	982 h 16m	40.92
Dwr Cymru Welsh Water	Croes Y Ceiliog Overflow	Nant Cwm-Croesyceiliog	60	836 h	34.83
Dwr Cymru Welsh Water	Llansaint WwTW Storm Overflow	Llansaint Stream	34	620 h	25.83
Dwr Cymru Welsh Water	Llanedi WwTW Storm Overflow	River Gwili	89	601 h 4m	25.04
Dwr Cymru Welsh Water	Carmarthen Road Cefneithin Storm Overflow	Gwendraeth Fawr	66	534 h 54m	22.25
Dwr Cymru Welsh Water	Llanelli Pwll Park Storm Overflow	Unnamed Tributary of Barnaby Pil	34	519 h 48m	21.62
Dwr Cymru Welsh Water	Trimsaran WwTW Inlet Storm Overflow	Gwendraeth Fawr	104	502 h	20.92
Dwr Cymru Welsh Water	Pontyates Heol Y Meinciau Storm Overflow	Gwendraeth Fawr	58	451 h 25m	18.79
Dwr Cymru Welsh Water	Pwll Storm Overflow	River Dulais	25	425 h 15m	17.71
Dwr Cymru Welsh Water	Penybanc Storm Overflow	River Loughor	71	404 h 40m	16.83
Dwr Cymru Welsh Water	Pantyffynnon Mill Terrace Storm Overflow	River Loughor	59	390 h 23m	16.25
Dwr Cymru Welsh Water	Ferryside Storm Overflow	Ferryside Stream	47	383 h 46m	15.96
Dwr Cymru Welsh Water	Parc y Dai No1 Drefach Storm Overflow	Gwendraeth Fawr	71	361 h 8m	15.04
Dwr Cymru Welsh Water	Llanelli Coastal WwTW Storm Overflow	Loughor Estuary	43	342 h 15m	14.25
Dwr Cymru Welsh Water	Pembrey Danlan Park Storm Overflow	Unnamed Drain leading to Afon Llwchwr	54	338 h 37m	14.08
Dwr Cymru Welsh Water	Clos Isaf Storm Overflow	Gwendraeth Fawr	67	326 h 2m	13.58
Dwr Cymru Welsh Water	Llanelli St Michaels Storm Overflow	River Dafen	28	307 h 2m	12.79
Dwr Cymru Welsh Water	Heol Plas Isaf Storm Overflow	Nant Mwrwg	60	295 h 45m	12.29
Dwr Cymru Welsh Water	Kingfisher Court East Storm Overflow	River Dafen	34	292 h	12.17
Dwr Cymru Welsh Water	Heol Y Bryn Storm Overflow	Gwendraeth Fawr	43	276 h 15m	11.5
Dwr Cymru Welsh Water	Maerdy Bridge Storm Overflow	Gwendraeth Fawr	42	241 h 45m	10.04
Dwr Cymru Welsh Water	Cwm Mawr Heol Cwmbach Storm Overflow	Gwendraeth Fawr	33	233 h 45m	9.71
Dwr Cymru Welsh Water	Cwm Capel Overflow	Nant Dyfatty	15	225 h 15m	9.38
Dwr Cymru Welsh Water	Kidwelly Garreg Storm Overflow	Gwendraeth Fach	25	218 h 30m	9.08
Dwr Cymru Welsh Water	Tycoch Storm Overflow	Tributary of Gwendraeth Fawr	43	209 h 30m	8.71
Dwr Cymru Welsh Water	Cefneithin Road Gorslas Storm Overflow	Gwendraeth Fawr	47	202 h 56m	8.42
Dwr Cymru Welsh Water	Pontyberem Storm Overflow	Gwendraeth Fawr	55	177 h 45m	7.38
Dwr Cymru Welsh Water	Dafen Industrial Estate Storm Overflow	River Dafen	15	154 h 30m	6.42
Dwr Cymru Welsh Water	Next to Heol Y Meinciau Bridge Pontyates Storm Overflow	Gwendraeth Fawr	22	153 h 15m	6.38
Dwr Cymru Welsh Water	Pembrey Links Storm Overflow	Swan Pool Drain	30	143 h 9m	5.96
Dwr Cymru Welsh Water	Parc y Dai No 2 Drefach Storm Overflow	Gwendraeth Fawr	40	142 h 21m	5.92
Dwr Cymru Welsh Water	Llanelli Sandy Road Storm Overflow	River Dulais	41	133 h	5.54
Dwr Cymru Welsh Water	Burry Port Storm Overflow	Unnamed Tributary of Barnaby Pill	19	112 h 45m	4.67
Dwr Cymru Welsh Water	Heol Ddu Storm Overflow	Nant Dyfaty	15	103 h 21m	4.29
Dwr Cymru Welsh Water	Llangennech Storm Overflow	River Loughor	55	92 h 3m	3.83
Dwr Cymru Welsh Water	Ponthenri Storm Overflow	Gwendraeth Fawr	17	91 h 30m	3.79
Dwr Cymru Welsh Water	Iscoed Road Storm Overflow	River Loughor	37	86 h 45m	3.58
Dwr Cymru Welsh Water	Llanelli Northumberland Tanks Storm Overflow	Loughor Estuary	27	84 h 45m	3.5
Dwr Cymru Welsh Water	Basset Terrace Storm Overflow	River Dulais	24	77 h 12m	3.21
Dwr Cymru Welsh Water	Llanelli Bynea Storm Overflow	Tidal Pill of Loughor Estuary	12	69 h 30m	2.88
Dwr Cymru Welsh Water	Station Road Kidwelly Storm Overflow	Gwendraeth Fach	31	60 h 2m	2.5
Dwr Cymru Welsh Water	Station Road Kidwelly Overflow	Gwendraeth Fach	30	59 h 47m	2.46
Dwr Cymru Welsh Water	Rhosnewydd Tumble Storm Overflow	Tributary of Gwendraeth Fawr	31	56 h 7m	2.33
Dwr Cymru Welsh Water	Pontardulais Road Llangennech Storm Overflow	Afon Morlais	22	56 h	2.33
Dwr Cymru Welsh Water	Cefneithin Road Ddol Las Storm Overflow	Gwendraeth Fawr	15	53 h	2.21
Dwr Cymru Welsh Water	Llanelli Tir Einon Storm Overflow	River Dafen	19	49 h 24m	2.04
Dwr Cymru Welsh Water	Bryngwili Road Green Storm Overflow	River Gwili	17	44 h 35m	1.83
Dwr Cymru Welsh Water	Llanelli Station Road Junction Storm Overflow	River Lliedi	25	43 h 19m	1.79
Dwr Cymru Welsh Water	Ashburnham Storm Overflow	Burry Port Harbour	8	32 h 42m	1.33
Dwr Cymru Welsh Water	Hendy Arlan Gwili Storm Overflow	River Gwili	38	30 h 36m	1.25
Dwr Cymru Welsh Water	Andrew Street Bridge Storm Overflow	River Lliedi	7	29 h 10m	1.21
Dwr Cymru Welsh Water	Waungoch Storm Overflow	Unnamed Tributary of the Nant Glas	4	26 h 30m	1.08
Dwr Cymru Welsh Water	Llanelli Cambrian Storm Overflow	Loughor Outer	11	17 h 30m	0.71
Dwr Cymru Welsh Water	Llangyndeyrn Storm Overflow	Unnamed Tributary of Gwendraeth Fach	5	12 h 45m	0.5
Dwr Cymru Welsh Water	Pontyberem WwTW Inlet Storm Overflow	Gwendraeth Fawr	10	12 h 30m	0.5
Dwr Cymru Welsh Water	Llanelli Havard Road Storm Overflow	River Dafen	10	10 h 5m	0.42
Dwr Cymru Welsh Water	Unknown	Unknown	6	9 h	0.38
Dwr Cymru Welsh Water	Burry Port Ashburnham Road Storm Overflow	Disused Canal	8	8 h 9m	0.33
Dwr Cymru Welsh Water	Llanelli Penyfan Playing Field Storm Overflow	River Lliedi	11	6 h 44m	0.25
Dwr Cymru Welsh Water	Llwynuhilwg PS Overflow	Tributary of the River Dafen	2	6 h 30m	0.25
Dwr Cymru Welsh Water	Lower Trostre Road Llanelli Overflow	River Dafen	6	5 h 45m	0.21
Dwr Cymru Welsh Water	Llangyndeyrn WwTW Storm Overflow	Gwendraeth Fach	1	5 h 15m	0.21
Dwr Cymru Welsh Water	Y Gaer Llanelli Overflow	Dafen	8	5 h	0.21
Dwr Cymru Welsh Water	Church Road Burry Port Storm Overflow	Nant Dyfatty	6	4 h 14m	0.17
Dwr Cymru Welsh Water	Y Llwyn Llanelli Storm Overflow	River Dafen	3	4 h	0.17
Dwr Cymru Welsh Water	Bryn Avenue Burry Port Storm Overflow	Tributary of Barnaby Pill	3	3 h 58m	0.12
Dwr Cymru Welsh Water	Heol Goffa Bridge Storm Overflow	River Lliedi	1	1 h 44m	0.04
Dwr Cymru Welsh Water	Heol Nazareth Pontyates Storm Overflow	Gwendraeth Fawr	2	0 h 59m	0
Dwr Cymru Welsh Water	Llanelli Halfway Storm Overflow	River Dafen	2	0 h 45m	0
Dwr Cymru Welsh Water	Upper Cross Road Llanelli Storm Overflow	River Dafen	1	0 h 15m	0
Dwr Cymru Welsh Water	Dyfatty Park Overflow	Drain leading to the River Loughor	1	0 h 15m	0
Dwr Cymru Welsh Water	Ferryside Near Railway Track WwTW Storm Overflow	Ferryside Stream	1	0 h 15m	0
Dwr Cymru Welsh Water	Unknown	Unknown	0	0 h	0
Dwr Cymru Welsh Water	Llanelli Y Llwyn Storm Overflow	River Dafen	0	0 h	0
Dwr Cymru Welsh Water	Thomas Street Storm Overflowi	River Lliedi	0	0 h	0
Dwr Cymru Welsh Water	Maestir Llanelli Storm Overflow	River Lliedi	0	0 h	0
Dwr Cymru Welsh Water	Trimsaran Heol Llanelli Storm Overflow	Afon Morlais	0	0 h	0
Dwr Cymru Welsh Water	Hendy Storm Overflow	River Gwili	0	0 h	0
Dwr Cymru Welsh Water	Llanelli Swanfield Place Storm Overflow	River Lliedi	0	0 h	0
Dwr Cymru Welsh Water	Unknown	Unknown	0	0 h	0
Dwr Cymru Welsh Water	Burry Port Shoreline Overflow	Unnamed Stream Flowing to Outer Harbour	0	0 h	0
Dwr Cymru Welsh Water	Unknown	Unknown	0	0 h	0
Dwr Cymru Welsh Water	Llangennech Recreation Ground Storm Overflow	River Loughor	0	0 h	0
Dwr Cymru Welsh Water	Heol Hen Storm Overflow	Unnamed Tributary of the River Loughor	0	0 h	0
Dwr Cymru Welsh Water	Unknown	Unknown	0	0 h	0
Dwr Cymru Welsh Water	Trostre Industrial Park Storm Overflow	River Dafen	0	0 h	0

Llanelli - 2025 Sewage

Polluted by sewage 25,110 hours in 2025 - That's 2.91 years

Llanelli - 2025 Sewage

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Llanelli - 2025 Sewage Polluted by sewage 25,110 hours in 2025 - That's 2.91 years

Llanelli - 2025 Sewage

Which Year?

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View Annual Sewage Data

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Constituencies near Llanelli

Daily Data

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Totals so far

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Llanelli - 2025 Sewage

Polluted by sewage 25,110 hours in 2025 - That's 2.91 years