Here are all the reported sewage overflow totals for Carmarthen East and Dinefwr in 2022. Sometimes sewage can be being dumped for months at a time.
Company | Waterway | Site | Sewage Dumps | Duration (Hours) | Reporting % |
---|---|---|---|---|---|
Dwr Cymru Welsh Water | River Marlas | Settled Storm Overflow at Carmel Wastewater Treatment Works | 226 | 3,900 | 99.9 |
Dwr Cymru Welsh Water | River Marlais | CSO 6 NR BRYN MARLAIS FARM | 193 | 3,271 | 99.8 |
Dwr Cymru Welsh Water | River Lash | PENYGROES WWTW SSO PONTLASH | 167 | 2,809 | 99.9 |
Dwr Cymru Welsh Water | River Y Bantwen | Settled Storm Overflow at Llanddarog Wastewater Treatment Works | 132 | 2,700 | 100 |
Dwr Cymru Welsh Water | River Loughor | CSO 14/43 PONT Y CLERC Rd AMMANFORD | 120 | 2,252 | 99.8 |
Dwr Cymru Welsh Water | River Bran | LLANDOVERY WASTEWATER TREATMENT | 136 | 2,244 | 100 |
Dwr Cymru Welsh Water | River Teifi | CSO at Pentrecwrt STW | 265 | 2,216 | 98.5 |
Dwr Cymru Welsh Water | River Bargoed | Llysnewydd SPS | 108 | 2,064 | 100 |
Dwr Cymru Welsh Water | River Tyweli | PENCADER STW STORM TANKS | 101 | 2,015 | 100 |
Dwr Cymru Welsh Water | River Gwenlais | Storm Overflow at Cilycwm Wastewater Treatment Works | 270 | 1,776 | 100 |
Dwr Cymru Welsh Water | River Sannan | LLANFYNYDD STW | 173 | 1,738 | 100 |
Dwr Cymru Welsh Water | River Towy | CSO at FFAIRFACH STW | 120 | 1,722 | 99.5 |
Dwr Cymru Welsh Water | River Myddyfi | SALEM STW Settled Storm | 124 | 1,691 | 99.8 |
Dwr Cymru Welsh Water | River Sawdde | LLANGADOG STW | 122 | 1,519 | 100 |
Dwr Cymru Welsh Water | Marlais | BRECHFA STW - EMERGENCY DISCHA | 102 | 1,476 | 100 |
Dwr Cymru Welsh Water | River Marlas | McKays Crossing CSO | 97 | 1,335 | 99.4 |
Dwr Cymru Welsh Water | River Dulias | MYNNYDD CERRIG PUMPING STATION | 92 | 1,245 | 100 |
Dwr Cymru Welsh Water | River Amman | CSO 33 5M DOWNSTREAM OF PIPE BRIDGE | 90 | 1,082 | 100 |
Dwr Cymru Welsh Water | River Gwili | 100M D/S R'DBR CWMGWILI (CSO) CARMS | 119 | 1,031 | 100 |
Dwr Cymru Welsh Water | River Tywi | Ashfield Road P.S. Ashfield Llangado | 70 | 1,020 | 99.6 |
Dwr Cymru Welsh Water | River Marlais | CSO 4 Manhole 225A Adj 3 Rawlings | 57 | 960 | 100 |
Dwr Cymru Welsh Water | Nant Rhydian-Ddu | Porthyrhyd PS | 77 | 958 | 100 |
Dwr Cymru Welsh Water | River Teifi Via An Un- | Llanybydder CSO | 90 | 884 | 100 |
Dwr Cymru Welsh Water | River Mamog | CAPEL IWAN STW | 54 | 860 | 99.9 |
Dwr Cymru Welsh Water | River Teifi | Emlyn Arms CSO Newcastle Emlyn | 312 | 847 | 99.6 |
Dwr Cymru Welsh Water | River Loughor | CSO 16 PANTYFFYNON RAILWAY BRIDGE | 92 | 838 | 100 |
Dwr Cymru Welsh Water | Ferryside Stream | FERRYSIDE STW FERRYSIDE CARMS | 91 | 766 | 100 |
Dwr Cymru Welsh Water | River Amman | CSO Near 11 Upper Station Rd | 90 | 728 | 95.2 |
Dwr Cymru Welsh Water | River Amman | CSO 28 AT MANHOLE 89 NR AMMAN RFC | 84 | 720 | 100 |
Dwr Cymru Welsh Water | River Marlais | 29 Aberlash Rd CSO, Llandybie | 51 | 655 | 100 |
Dwr Cymru Welsh Water | River Cothi | PONTARGOTHI P.S.EMERG. | 48 | 573 | 99.9 |
Dwr Cymru Welsh Water | Gwendraeth Fawr | BLAENHIRWAUN CSO CEFNEITHIN | 98 | 544 | 99.9 |
Dwr Cymru Welsh Water | River Bran | CYNGHORDY WWTW INLET STORM OVERFLOW | 113 | 516 | 100 |
Dwr Cymru Welsh Water | Nant Y Ci | CSO 9 10 METRES DOWNSTREAM - BRIDGE | 97 | 508 | 99.8 |
Dwr Cymru Welsh Water | Llansaint Stream | LLANSAINT WWTW LLANSAINT FERRYSIDE | 26 | 485 | 99.8 |
Dwr Cymru Welsh Water | River Teifi | CENARTH PS | 47 | 469 | 100 |
Dwr Cymru Welsh Water | Cloidach | CSO at Felingwm Wastewater Treatment Works | 108 | 458 | 100 |
Dwr Cymru Welsh Water | River Amman | CS0 34 100M DOWNSTREAM OF BRIDGE | 56 | 448 | 100 |
Dwr Cymru Welsh Water | Nant Y Wrach | CAERBRYN R'D CSO PENYGROES CARMS | 81 | 446 | 100 |
Dwr Cymru Welsh Water | River Teify | CSO and SPS at LLANBYTHER (MANHOLE 7 )EMERGEN | 55 | 405 | 74.7 |
Dwr Cymru Welsh Water | Unnamed Stream | Ty Hen Rhos PS | 61 | 399 | 99.8 |
Dwr Cymru Welsh Water | River Amman | CSO 37, Manhole 24B, Betws Rd Bridge | 94 | 390 | 99.3 |
Dwr Cymru Welsh Water | River Brake | Albion SPS | 80 | 383 | 100 |
Dwr Cymru Welsh Water | Gwendraeth Fawr | Parc y Dai CSO | 64 | 364 | 98.8 |
Dwr Cymru Welsh Water | River Towy | Golden Grove WwTW Inlet CSO Llandie | 92 | 338 | 99.2 |
Dwr Cymru Welsh Water | Nant Cwm Croes Y Ceiliog | IDOLE CWMFFRWD SEWERAGE SCHEME | 49 | 317 | 99.9 |
Dwr Cymru Welsh Water | River Loughor | Penybanc Rd 2 CSO | 85 | 314 | 99.9 |
Dwr Cymru Welsh Water | Loughor - Conf With Marlais To Conf With Aman | Nant Arw CSO, Capel Hendre | 57 | 307 | 100 |
Dwr Cymru Welsh Water | Nant Gurrey Fach | Sawmills Y'd CSO Llandeilo Carmarthen | 41 | 304 | 98.3 |
Dwr Cymru Welsh Water | Un To River Bran | Myddfai Village Sewerage Scheme CSO | 127 | 301 | 100 |
Dwr Cymru Welsh Water | River Gwili | Abergwili SPS | 80 | 295 | 99.5 |
Dwr Cymru Welsh Water | River Bantwen | LLANDDAROG PS EO CWMISFAEL CARMS | 56 | 277 | 100 |
Dwr Cymru Welsh Water | River Amman | CSO 36 Manhole 31c Opp Bettws Pk | 122 | 272 | 99.7 |
Dwr Cymru Welsh Water | Gwendraeth Fawr | Tom Jones Nursery CSO | 65 | 253 | 99.8 |
Dwr Cymru Welsh Water | River Bran | Llandovery No1 SPS | 86 | 237 | 100 |
Dwr Cymru Welsh Water | River Tywi | Llansadwrn SPS | 27 | 227 | 100 |
Dwr Cymru Welsh Water | Nant Alltwalis | ALLTWALIS PS | 45 | 211 | 100 |
Dwr Cymru Welsh Water | River Amman | CSO 21 NR FORGE WASHERY BRYNAMMAN | 101 | 202 | 99.9 |
Dwr Cymru Welsh Water | Gwendraeth Fawr | SOC4 PONTYATES AREA CSO | 42 | 195 | 100 |
Dwr Cymru Welsh Water | Unknown Of River Towy | Carmarthen - Sticle Path | 78 | 186 | 99.5 |
Dwr Cymru Welsh Water | Gwendraeth Fawr | Parc Y Dai No1 CSO Drefach | 57 | 175 | 39.4 |
Dwr Cymru Welsh Water | River Tywi | LLANDEILO CSO | 100 | 160 | 83.8 |
Dwr Cymru Welsh Water | River Cennen | Primary School CSO Ffairfach | 43 | 156 | 99.5 |
Dwr Cymru Welsh Water | River Teifi | Cwmann SPS | 125 | 150 | 99.7 |
Dwr Cymru Welsh Water | River Towy | Llandeilo Yscubor Abad CSOs | 81 | 148 | 95.5 |
Dwr Cymru Welsh Water | River Ddu | TALLEY WWTW INLET PUMPING STATION | 30 | 139 | 99.6 |
Dwr Cymru Welsh Water | River Marlais | Llansawel WWTW Settled Storm | 24 | 134 | 100 |
Dwr Cymru Welsh Water | River Twrch | GEORGE IV CSO 23 UPPER CWMTWRCH | 18 | 130 | 100 |
Dwr Cymru Welsh Water | Gwendraeth Fach | Pencader Bridge CSO | 30 | 121 | 100 |
Dwr Cymru Welsh Water | River Tywelli | Pencader SPS | 30 | 117 | 100 |
Dwr Cymru Welsh Water | River Twrch | CSO Felinfach Rd. Ystradowen. | 10 | 104 | 75.8 |
Dwr Cymru Welsh Water | Gwendraeth Fawr | CSO at Cwm Mawr Rb No1 Gwendreath Catchmen | 29 | 104 | 100 |
Dwr Cymru Welsh Water | River Dulas | CWRT HENRI WWTW INLET STORM OVERFLW | 55 | 102 | 100 |
Dwr Cymru Welsh Water | River Amman | CSO 38 500 M UP/STRM CONF LOUGHER | 51 | 93 | 100 |
Dwr Cymru Welsh Water | Nant Llynfell | Swo No 11 Nr Glanyrafon Cwmlly CSO | 30 | 84 | 76.7 |
Dwr Cymru Welsh Water | Nant Harri | Rhosmaen PS | 40 | 72 | 99.6 |
Dwr Cymru Welsh Water | Gwendraeth Fach | Llanddarog | 8 | 63 | 29 |
Dwr Cymru Welsh Water | Gwendraeth Fawr | Ddoll Las Temporary CSO Llanelli | 16 | 58 | 99.9 |
Dwr Cymru Welsh Water | River Amman | Station Road CSO, Brynamman | 49 | 58 | 100 |
Dwr Cymru Welsh Water | River Lash | Gate Road Sewage Pumping Station Penygroes | 21 | 54 | 100 |
Dwr Cymru Welsh Water | River Gwili | CSO 50m D/S From Culvert Meadows R'd | 25 | 36 | 100 |
Dwr Cymru Welsh Water | River Marlais | Llandybie RFC CSO | 40 | 34 | 100 |
Dwr Cymru Welsh Water | Ferryside Stream | FERRYSIDE PS . . | 31 | 29 | 99.8 |
Dwr Cymru Welsh Water | Gwendraeth Fawr | HEOL MEINCIAU CSO | 12 | 27 | 100 |
Dwr Cymru Welsh Water | Nant-Y-Ci | 153 Saron Rd CSO | 22 | 15 | 99.9 |
Dwr Cymru Welsh Water | Nant Grenig | CSO 32 30M D/STRM A474 ROADBRIDGE | 9 | 14 | 57.5 |
Dwr Cymru Welsh Water | Gwendraeth Fawr | CARWAY WWTW CARWAY CARMS | 27 | 9 | 99.9 |
Dwr Cymru Welsh Water | River Bran | FELIN FRAN PS LLANGADOG , | 2 | 9 | 100 |
Dwr Cymru Welsh Water | River Teifi | CWMANN SPS(EMERG'Y) CWMANN LAMPETER | 9 | 9 | 99.7 |
Dwr Cymru Welsh Water | Nant Arw | Capel Hendre Sewage Scheme CSO | 3 | 8 | 99.9 |
Dwr Cymru Welsh Water | Unnamed Utory Of River Sawdde | Llangadog Common CSO | 19 | 6 | 100 |
Dwr Cymru Welsh Water | River Twrch | FARMERS STW | 5 | 6 | 100 |
Dwr Cymru Welsh Water | River Amman | CSO 19 HALL STREET BRYNAMMAN | 9 | 6 | 99.9 |
Dwr Cymru Welsh Water | River Tywi | CSO at Cwm Ifor STW Storm Tanks Manordei | 6 | 5 | 100 |
Dwr Cymru Welsh Water | River Teifi | WILKES HEAD CSO LLANDYSUL CERED'N | 8 | 4 | 94 |
Dwr Cymru Welsh Water | River Duar | Llanybydder - Oriel Jones CSO | 10 | 4 | 52.2 |
Dwr Cymru Welsh Water | Gwendraeth Fawr | HEOL NAZARETH 2 CSO | 6 | 1 | 100 |
Dwr Cymru Welsh Water | River Melinddwr | Llansawel Village CSO No2 | 3 | 1 | 98.4 |
Dwr Cymru Welsh Water | River Gorlech | ABERGORLECH SPS | 1 | 0 | 58.2 |
Dwr Cymru Welsh Water | River Amman | CSO 29 At Manhole 76c Nr Hospital | 1 | 0 | 99.7 |
Dwr Cymru Welsh Water | River Loughor | Old NCB Yard CSO, Penybanc | 1 | 0 | 24.4 |
Dwr Cymru Welsh Water | Gwendraeth Fach | Settled Storm Overflow at Llangyndeyrn Wastewater Treatment Works | 1 | 0 | 100 |
Dwr Cymru Welsh Water | Unnamed Utuary Of Gwendreath Fach | CSO at Llangynderyn PS into R Gwendraeth Fach | 0 | 0 | 100 |
Dwr Cymru Welsh Water | River Gwili | Cwmgwili WwTW Cwmgwili Nr Ammanford Settled Storm | 0 | 0 | 100 |
Dwr Cymru Welsh Water | River Amman | CSO 23 Manhole 125B Nr Brynbach FM | 0 | 0 | 0 |
Dwr Cymru Welsh Water | River Teifi | RHYDFACH PS | 0 | 0 | 72.3 |
Dwr Cymru Welsh Water | Nant Wthan | Saron - A484 O.S. Maesgeler | 0 | 0 | 0 |
Dwr Cymru Welsh Water | Nant Gwenlais | Cilyrychen PS CSO | 0 | 0 | 0 |
Dwr Cymru Welsh Water | River Melinddwr | LLANSAWEL . . | 0 | 0 | 0 |
Dwr Cymru Welsh Water | River Cothi | Pont-ar-Gothi & Nantgaredig Wastewater Treatment Works | 0 | 0 | 99.7 |
Dwr Cymru Welsh Water | River Amman | Penpound Lane CSO | 0 | 0 | 0 |
Dwr Cymru Welsh Water | Nant Crychiau | PENIEL PS PENIEL CARMARTHEN , | 0 | 0 | 0 |
Dwr Cymru Welsh Water | River Amman | CSO 31 Manhole 72C Maesgrenig | 0 | 0 | 6 |
EDM (Event Duration Monitoring) data and Consented Discharges to Controlled Waters with Conditions from Environment Agency & Data Map Wales
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.
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