Caerfyrddin - 2025 Sewage

Polluted by sewage 89,826 hours in 2025 - That's 10.4 years

© OpenStreetMap contributors
Contains OS Data © Crown copyright & database right 2021-2024
© Top of the Poops 2021-2024

Which Year?

Select Another Constituency

Select the constituency from the drop-down
โœ” means we have live data (๐‘ฅ if not)

View Annual Sewage Data

You're looking at the totals that we have calculated for sewage in Caerfyrddin 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.

Take Action

Your local MP is Ann Davies (Plaid Cymru) - Find out more about their interests, donors, and voting at They Work For You

Share this page, post a message, and tell others about the huge problem of sewage pollution across the UK
Post
Post

Constituencies near Caerfyrddin

Daily Data

We get information about overflowing CSOs since January 2025. Here is a chart of the last three months of data for Caerfyrddin, here you can see overflows in red, the darker the red, the more the CSO overflowed that day.

Each CSO has a row, the most recent data is on the right hand side.

Monitoring Online
Monitoring Offline
Polluting
Potentially Polluting
Unknown
Daily data is experimental and data is not guaranteed to be accurate. Please inform us of any issue, we will fix.
We need your support!

We managed to raise ยฃ150 in 2024. That's not enough to keep the site running. Please consider a one-off or small recurring donation.

Donate Now

Totals so far

Company Site Name Receiving Waterway Overflow Days Total Duration (hours) Total Duration (days)
Dwr Cymru Welsh Water Waunfarlais Road Brynmarlais Storm Overflow Afon Marlais 153 2,574 h 12m 107.25
Dwr Cymru Welsh Water Rhydfach Storm Overflow River Teifi 117 2,517 h 37m 104.88
Dwr Cymru Welsh Water Llanddarog WwTW Storm Overflow Gwendraeth Fach 120 2,458 h 29m 102.42
Dwr Cymru Welsh Water Pont-ar-gothi & Nantgaredig WwTW Storm Overflow Afon Cothi 107 2,203 h 47m 91.79
Dwr Cymru Welsh Water Carmel WwTW Storm Overflow Tributary of Afon Marlais 111 2,123 h 59m 88.46
Dwr Cymru Welsh Water Pencader WwTW Storm Overflow Afon Tyweli 119 2,117 h 34m 88.21
Dwr Cymru Welsh Water Manordeilo Overflow River Towy 100 2,114 h 57m 88.08
Dwr Cymru Welsh Water St. Clears Storm Overflow Afon Cynin 145 2,086 h 28m 86.92
Dwr Cymru Welsh Water Cwm Ifor WwTW Storm Overflow River Towy 119 2,024 h 15m 84.33
Dwr Cymru Welsh Water Penygroes Storm Overflow Afon Lash 132 2,022 h 16m 84.25
Dwr Cymru Welsh Water Whitland WwTW Storm Overflow River Taff 117 2,011 h 45m 83.79
Dwr Cymru Welsh Water Bronwydd WwTW Storm Overflow River Gwili 147 1,972 h 53m 82.17
Dwr Cymru Welsh Water Brechfa Overflow Afon Marlais 113 1,951 h 59m 81.29
Dwr Cymru Welsh Water Pentrecwrt WwTW Storm Overflow River Teifi 213 1,942 h 18m 80.92
Dwr Cymru Welsh Water Cynwyl Elfed WwTW Storm Overflow Afon Duad 88 1,873 h 44m 78.04
Dwr Cymru Welsh Water Bishop Road Ammanford Storm Overflow River Loughor 117 1,821 h 45m 75.88
Dwr Cymru Welsh Water Ffairfach WwTW Storm Overflow River Towy 134 1,806 h 4m 75.25
Dwr Cymru Welsh Water Llanfynydd WwTW Storm Overflow Afon Sannen 138 1,738 h 28m 72.42
Dwr Cymru Welsh Water Bancyfelin WwTW Storm Overflow Afon Cywyn 97 1,693 h 18m 70.54
Dwr Cymru Welsh Water Llandovery WwTW Storm Overflow Afon Bran 101 1,673 h 45m 69.71
Dwr Cymru Welsh Water Laugharne WwTW Storm Overflow Taf Estuary 98 1,632 h 26m 68
Dwr Cymru Welsh Water Cwmduad WwTW Storm Overflow Afon Duad 84 1,614 h 6m 67.25
Dwr Cymru Welsh Water Brynmarlais Crossing Storm Overflow Afon Marlais 104 1,609 h 47m 67.04
Dwr Cymru Welsh Water Pontamman Pipe Crossing Storm Overflow River Amman 109 1,581 h 29m 65.88
Dwr Cymru Welsh Water Drefach WwTW Storm Overflow Nant Bargod 88 1,420 h 14m 59.17
Dwr Cymru Welsh Water Llansteffan WwTW Overflow River Towy 91 1,254 h 45m 52.25
Dwr Cymru Welsh Water Porthyrhyd Storm Overflow Nant Rhydian Ddu 82 1,218 h 41m 50.75
Dwr Cymru Welsh Water Cilycwm WwTW Storm Overflow River Gwenlais 161 1,160 h 28m 48.33
Dwr Cymru Welsh Water Craigwen New Storm Overflow River Taff 76 985 h 44m 41.04
Dwr Cymru Welsh Water Llangain Storm Overflow Tributary of Afon Tywi 65 983 h 46m 40.96
Dwr Cymru Welsh Water Southwest of Margaret Road Storm Overflow Afon Marlas 49 973 h 6m 40.54
Dwr Cymru Welsh Water Capel Iwan WwTW Storm Overflow Afon Mamog 49 955 h 30m 39.79
Dwr Cymru Welsh Water Alltwallis Overflow Nant Alltwalis 69 924 h 20m 38.5
Dwr Cymru Welsh Water Llanybydder Cattle Market Storm Overflow River Teifi 70 916 h 38.17
Dwr Cymru Welsh Water Salem WwTW Storm Overflow Afon Myddyfi 83 891 h 59m 37.12
Dwr Cymru Welsh Water Aberlash Road Storm Overflow Afon Marlais 51 890 h 4m 37.08
Dwr Cymru Welsh Water Upper Station Road Glanaman Storm Overflow River Amman 92 840 h 27m 35
Dwr Cymru Welsh Water Heol Y Deri Storm Overflow River Gwili 78 829 h 48m 34.54
Dwr Cymru Welsh Water Cenarth South of Afon Storm Overflow River Teifi 70 821 h 45m 34.21
Dwr Cymru Welsh Water Llanpumpsaint WwTW Storm Overflow River Gwili 67 781 h 20m 32.54
Dwr Cymru Welsh Water Ashfield Llangadog Storm Overflow River Towy 43 771 h 15m 32.12
Dwr Cymru Welsh Water Pantyffynnon Station Storm Overflow River Loughor 81 764 h 46m 31.83
Dwr Cymru Welsh Water South of Roundabout A40 A485 Storm Overflow River Gwili 91 744 h 33m 31
Dwr Cymru Welsh Water Heol Llangynnwr Carmarthen Overflow River Towy 93 736 h 31m 30.67
Dwr Cymru Welsh Water Cwmgwili WwTW Storm Overflow River Gwili 50 721 h 27m 30.04
Dwr Cymru Welsh Water Llangadog WwTW Storm Overflow River Sawdde 67 714 h 29.75
Dwr Cymru Welsh Water Parc Golwg Yr Aman Storm Overflow River Amman 81 681 h 12m 28.38
Dwr Cymru Welsh Water Clos Pentre St Clears Overflow Afon Cynin 90 671 h 24m 27.96
Dwr Cymru Welsh Water Llanybydder Storm Overflow River Teifi 60 636 h 15m 26.5
Dwr Cymru Welsh Water Newcastle Emlyn Arms Storm Overflow River Teifi 91 621 h 22m 25.88
Dwr Cymru Welsh Water Pendine WwTW Storm Overflow Soakaway in W, Marsh 43 611 h 48m 25.46
Dwr Cymru Welsh Water Tanerdy Storm Overflow River Towy 83 574 h 40m 23.92
Dwr Cymru Welsh Water Talley WwTW Overflow Afon Ddu 47 568 h 49m 23.67
Dwr Cymru Welsh Water Old Llansteffan Road Carmarthen Storm Overflow Towy 92 535 h 44m 22.29
Dwr Cymru Welsh Water Saron Storm Overflow Nant Wthan 33 532 h 40m 22.17
Dwr Cymru Welsh Water Capel Silo Storm Overflow Unnamed Stream 40 525 h 13m 21.88
Dwr Cymru Welsh Water Pothouse Wharf Storm Overflow River Towy 81 522 h 38m 21.75
Dwr Cymru Welsh Water Dyffryn Road Ammanford Storm Overflow Nant-Y-Ci 86 488 h 25m 20.33
Dwr Cymru Welsh Water Llansadwrn Storm Overflow Unnamed Tributary of Afon Tywi 39 482 h 15m 20.08
Dwr Cymru Welsh Water Park Street Ammanford Storm Overflow River Amman 77 469 h 53m 19.54
Dwr Cymru Welsh Water Heol Bethlehem Llandeilo Storm Overflow River Cennen 68 462 h 31m 19.25
Dwr Cymru Welsh Water Caio WwTW Overflow Annell 41 451 h 59m 18.79
Dwr Cymru Welsh Water Ffarmers WwTW Overflow Afon Twrch 45 449 h 30m 18.71
Dwr Cymru Welsh Water Pontargothi Overflow River Cothi 38 439 h 32m 18.29
Dwr Cymru Welsh Water Abergorlech Storm Overflow Afon Gorlech 30 424 h 30m 17.67
Dwr Cymru Welsh Water Quarry Place Storm Overflow River Amman 59 416 h 30m 17.33
Dwr Cymru Welsh Water Wogan Street Laugharne Storm Overflow Culverted Section of Mackerel Lake Stream 64 401 h 58m 16.71
Dwr Cymru Welsh Water Felingwm Uchaf WwTW Storm Overflow Cloidach 73 383 h 18m 15.96
Dwr Cymru Welsh Water Whitland Storm Overflow River Taff 70 369 h 45m 15.38
Dwr Cymru Welsh Water Meidrim WwTW Overflow Afon Dewi Fawr 88 355 h 45m 14.79
Dwr Cymru Welsh Water Red Roses WwTW Overflow Tributary of Trelissey Stream 39 350 h 42m 14.58
Dwr Cymru Welsh Water Morfa Lane Carmarthen Storm Overflow River Towy 101 342 h 25m 14.25
Dwr Cymru Welsh Water Caerbryn Road Penygroes Storm Overflow Nant Y Wrach 66 340 h 32m 14.17
Dwr Cymru Welsh Water Llanddowror Village Storm Overflow Nant Hedfron 30 336 h 23m 14
Dwr Cymru Welsh Water Llysnewydd Storm Overflow River Taff Bargoed 29 333 h 18m 13.88
Dwr Cymru Welsh Water Carmarthen Sticle Footpath Storm Overflow Tributary of Afon Tawe 53 304 h 29m 12.67
Dwr Cymru Welsh Water Pencader Storm Overflow Afon Tyweli 36 297 h 2m 12.38
Dwr Cymru Welsh Water Cwmdwyfran Storm Overflow River Gwili 25 295 h 45m 12.29
Dwr Cymru Welsh Water Lon Hafren St Clears Overflow Dewi Fawr 41 289 h 6m 12.04
Dwr Cymru Welsh Water Penpound Lane Storm Overflow River Amman 52 286 h 57m 11.92
Dwr Cymru Welsh Water Llandeilo Near A483 Road Bridge Storm Overflow River Tywi 84 285 h 40m 11.88
Dwr Cymru Welsh Water Trelech WwTW Storm Overflow Afon Cawnen 44 285 h 30m 11.88
Dwr Cymru Welsh Water New Road Cwmllynfell Storm Overflow Nant Llynfell 52 275 h 30m 11.46
Dwr Cymru Welsh Water Llanddarog Overflow Tributary of Afon Y Bantwen 69 270 h 45m 11.25
Dwr Cymru Welsh Water Llanboidy WwTW Storm Overflow Afon Gronw 38 269 h 11.21
Dwr Cymru Welsh Water High Street Ammanford Storm Overflow River Amman 54 248 h 37m 10.33
Dwr Cymru Welsh Water Cwm-twrch Uchaf Car Park Storm Overflow Afon Twrch 38 247 h 40m 10.29
Dwr Cymru Welsh Water Clos Y Cwm Storm Overflow River Loughor 44 237 h 33m 9.88
Dwr Cymru Welsh Water Pen Y Banc Road Ammanford Storm Overflow River Loughor 52 224 h 52m 9.33
Dwr Cymru Welsh Water Cwmann Storm Overflow River Teifi 67 222 h 50m 9.25
Dwr Cymru Welsh Water Llandeilo Yscubor Abad North Storm Overflow River Towy 61 220 h 27m 9.17
Dwr Cymru Welsh Water Maesquarre Road Storm Overflow River Amman 28 219 h 57m 9.12
Dwr Cymru Welsh Water Llandovery Storm Overflow Afon Brรขn 58 215 h 5m 8.96
Dwr Cymru Welsh Water Old Priory Road Storm Overflow River Towy 70 188 h 55m 7.83
Dwr Cymru Welsh Water Peniel Overflow Nant Crychiau 16 183 h 27m 7.62
Dwr Cymru Welsh Water Heol Llanbedr Llanybydder Storm Overflow Afon Duar 30 182 h 56m 7.58
Dwr Cymru Welsh Water Brynmeillion Storm Overflow Tributary of the Nant Corrwg 41 178 h 18m 7.42
Dwr Cymru Welsh Water Meadow's Road Storm Overflow Unnamed Tributary of Afon Gwili 32 174 h 47m 7.25
Dwr Cymru Welsh Water Myddfai Storm Overflow Tributary of Afon Bran 96 169 h 7.04
Dwr Cymru Welsh Water Station Road Glanaman Storm Overflow River Amman 43 167 h 46m 6.96
Dwr Cymru Welsh Water Cwrt Henri WwTW Storm Overflow Afon Dulas 42 167 h 30m 6.96
Dwr Cymru Welsh Water Cynghordy Storm Overflow Afon Bran 39 163 h 45m 6.79
Dwr Cymru Welsh Water Whitland Bridge Storm Overflow Afon Gronw 38 158 h 23m 6.58
Dwr Cymru Welsh Water Job's Well Road Storm Overflow Tawelan Brook 40 147 h 1m 6.12
Dwr Cymru Welsh Water Golden Grove WwTW Storm Overflow Tributary of Afon Tywi 60 145 h 15m 6.04
Dwr Cymru Welsh Water Heol Marlais Llandybie Storm Overflow Afon Marlas 37 132 h 15m 5.5
Dwr Cymru Welsh Water Cwmgarw Road Footbridge Brynamman Storm Overflow River Amman 53 131 h 11m 5.46
Dwr Cymru Welsh Water Carmarthen Bridge Storm Overflow River Towy 62 115 h 25m 4.79
Dwr Cymru Welsh Water Albion Near Railway Crossing Storm Overflow Afon Brake 52 114 h 45m 4.75
Dwr Cymru Welsh Water Pont Cynwyl Storm Overflow Nant Gochen 13 111 h 12m 4.62
Dwr Cymru Welsh Water Felinfran Overflow The Afon Bran 15 109 h 34m 4.54
Dwr Cymru Welsh Water The Grist Storm Overflow River Coran 31 101 h 28m 4.21
Dwr Cymru Welsh Water Fair Trade Way Storm Overflow River Amman 40 99 h 4.12
Dwr Cymru Welsh Water Old Station Road Storm Overflow River Towy 63 88 h 39m 3.67
Dwr Cymru Welsh Water Caerbryn Woods Storm Overflow unnamed tributary of Afon Lash 26 77 h 53m 3.21
Dwr Cymru Welsh Water Station Road Brynamman Storm Overflow River Amman 32 76 h 8m 3.17
Dwr Cymru Welsh Water Amman Road Storm Overflow River Amman 27 68 h 56m 2.83
Dwr Cymru Welsh Water Cwmamman Road Storm Overflow Nant Grenig 11 61 h 7m 2.54
Dwr Cymru Welsh Water Llandeilo of Station Road Storm Overflow Nant Gurrey Fach 17 56 h 53m 2.33
Dwr Cymru Welsh Water Pentremeurig Road 1 Storm Overflow Tawelan Brook 11 55 h 20m 2.29
Dwr Cymru Welsh Water Gate Road Storm Overflow Tributary of Afon Lash 11 53 h 45m 2.21
Dwr Cymru Welsh Water Pencader Bridge Storm Overflow River Talog 17 49 h 41m 2.04
Dwr Cymru Welsh Water Saron Road Saron Storm Overflow Nant-Y-Ci 19 46 h 51m 1.92
Dwr Cymru Welsh Water Rhosmaen Storm Overflow Nant Harri 28 40 h 59m 1.67
Dwr Cymru Welsh Water Park Mill Road Ammanford Storm Overflow River Loughor 22 39 h 45m 1.62
Dwr Cymru Welsh Water Pensarn Overflow Unnamed Watercourse 4 38 h 2m 1.58
Dwr Cymru Welsh Water Brickyard Lane Storm Overflow River Towy 10 35 h 15m 1.46
Dwr Cymru Welsh Water Cwmann Overflow Tributary of Afon Teifi 12 32 h 45m 1.33
Dwr Cymru Welsh Water Parc Hinds Storm Overflow River Tywi 2 29 h 30m 1.21
Dwr Cymru Welsh Water Llangain Pwntan Storm Overflow Nant Pwntan 6 22 h 59m 0.92
Dwr Cymru Welsh Water Hall Street Brynamman Storm Overflow Unnamed Tributary of Afon Amman 12 19 h 46m 0.79
Dwr Cymru Welsh Water Llanddarog Storm Overflow Gwendraeth Fach 12 18 h 27m 0.75
Dwr Cymru Welsh Water Llangynog WwTW Storm Overflow Tributary of Afon Taf 10 9 h 30m 0.38
Dwr Cymru Welsh Water Caer Bryn Road Pen Y Groes Overflow The Lash 5 5 h 42m 0.21
Dwr Cymru Welsh Water Lon Tanerdy Storm Overflow River Teifi 7 3 h 15m 0.12
Dwr Cymru Welsh Water Llansawel No. 2 Storm Overflow Afon Melindwr 3 2 h 56m 0.08
Dwr Cymru Welsh Water Russell Terrace Storm Overflow Tawelan 4 2 h 28m 0.08
Dwr Cymru Welsh Water Unknown Unknown 2 0 h 59m 0
Dwr Cymru Welsh Water Llangadog Off A4069 Storm Overflow Unnamed Tributary of Afon Sawdde 2 0 h 30m 0
Dwr Cymru Welsh Water No1 Llansawel Village Storm Overflow Afon Melindwr 0 0 h 0
Dwr Cymru Welsh Water Capel Hendre Hendre Road Storm Overflow Nant Arw 0 0 h 0
Dwr Cymru Welsh Water Pentremeurig Road 2 Storm Overflow Tawelan Brook 0 0 h 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. 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.

Top of the Poops

Analysing sewage pollution by the Water Industry

Follow on Instagram

Media Queries

Get in touch if you have queries or want to discuss our data.

press [at] top-of-the-poops.org

Please Support Us

We rely on donations to fund our work. Please support us if you can
Yes! Support TOTP!

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

Some data reproduced under Open Government Licence

Full Copyright information available at: our GitHub page