Ceredigion Preseli - Live Sewage

Polluted by sewage 28,441 hours in 2026 - That's 3.29 years so far..

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View Annual Sewage Data

You're looking at the totals that we have calculated for sewage in Ceredigion Preseli so far for 2026. It is an estimate, based on very poor quality live data from the Water Companies. The water companies report their sewage to the Environment Agency every year in April. You can see the last reported year in the other page

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Constituencies near Ceredigion Preseli

Daily Data

We get information about overflowing CSOs since January 2025. Here is a chart of the last three months of data for Ceredigion Preseli, 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.

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Totals so far

Company	CSO ID	Overflow Days	Total Duration (hours)	Total Duration (days)
Dwr Cymru Welsh Water	a3ef6b9a8888e185683572e253997decb47904e7fc7f66095b4075b0834777c3	47	1,076 h 5m	44.83
Dwr Cymru Welsh Water	4973612024d0eb3b94d0d9c04e1d6c281fd4b0399c7eadf4e12fd0768f53edf6	48	1,017 h 25m	42.38
Dwr Cymru Welsh Water	54649073b931dd26bc899943a92ac09c1772dc65ff06d44b02005e4225c5e411	43	990 h 5m	41.25
Dwr Cymru Welsh Water	4fab3e03c6ae73fe9570ad7c0bbf18b7ae49dc1bf9b3d98165aef812bf07f061	44	957 h 5m	39.88
Dwr Cymru Welsh Water	9e536fc598a204a159a72299f652e17f2891cdcc48d194fad7d0da839c0c9e3b	44	953 h 25m	39.71
Dwr Cymru Welsh Water	30ae2ae58a3e8d8617340e97e2cfce8370e46e1e02d1b6bce8cdceb42f453ae8	42	945 h 50m	39.38
Dwr Cymru Welsh Water	c6648940d03914816f494c77c15f6d19ffbd49579e2376c858eb7b17ff3965f1	42	945 h 5m	39.38
Dwr Cymru Welsh Water	da40e9136efa2d3afb9734a45cb2f5048037506479e2b16d2492b6ab5a04ea5b	43	936 h 52m	39
Dwr Cymru Welsh Water	2f12f77eeeb518a706154b67399cd977a364c11cb7d87aa6a5c96e9c7f6cd408	42	901 h 50m	37.54
Dwr Cymru Welsh Water	b4868e3c669cc34f92848fc9d71cf105f5e467631b8eb2322fe31266b21a11e9	47	893 h 50m	37.21
Dwr Cymru Welsh Water	00384d6c4fc829698456739d0c5ad600152930aefaede8bff80cc73a0193fdec	39	804 h 5m	33.5
Dwr Cymru Welsh Water	81b1c21072a8dab45d8b8d2a16a5460377345889eff048597ab49f81f271e852	40	787 h 5m	32.79
Dwr Cymru Welsh Water	a90b4a3dfa6e366b869bf3f7b0bc281fb2aac7b268db120d0410202bd2af2713	36	779 h 41m	32.46
Dwr Cymru Welsh Water	e58c47768fbbed85bc6dbdbb6fba2003d3a31f033eb0f57bea00bf8544147f9f	42	740 h 9m	30.83
Dwr Cymru Welsh Water	af136e86b65e69bba9ea46d4c270de4031f0567f828c984d9319724e5a16b152	38	719 h 20m	29.96
Dwr Cymru Welsh Water	7e83141fcfec05583edfc57cfab9e055af6401eb180c0bc6d709f6d82d3c8daf	36	684 h	28.5
Dwr Cymru Welsh Water	8978e7e8a05788187129f78efa2b3db20507bd879a4c4a52e707e8879e57e99d	37	678 h	28.25
Dwr Cymru Welsh Water	af9585e7d1a97300d4918859df2d44d03584948657972354487ae9baf8bb247e	47	646 h 45m	26.92
Dwr Cymru Welsh Water	dd66055e98733b01df976eafcaa021e1640a9b620aa79c977201b96b6a7f6a76	32	620 h 20m	25.83
Dwr Cymru Welsh Water	5d16d23d869820f007e35fa316998084dec478af035cb9cb5de4eaec10a92cf0	32	594 h 40m	24.75
Dwr Cymru Welsh Water	e3f4a50f151c8f16e455f272893448baa4977d14c7bbe8f9dbc318fd08f89a77	34	575 h 20m	23.96
Dwr Cymru Welsh Water	b58dbfac4fefca3c630dfe7f43ee1e54d5a255509cfdd9c11ea2948470c60396	33	573 h 30m	23.88
Dwr Cymru Welsh Water	b2094a5814a0ee30e7ea8ec576439960db2e139753021ce069369298c75073b6	38	498 h 29m	20.75
Dwr Cymru Welsh Water	53f972aec21d53f7b15fb4f1c7b6611fb2f6442f766ef27fd5fe38b7a04532e9	36	486 h 52m	20.25
Dwr Cymru Welsh Water	421a8c7589c20ccad0518f27d7c79126590aa160892010dd8e02dd5884bcc39f	24	466 h 45m	19.42
Dwr Cymru Welsh Water	e5c7970d6da7ec20bf6b3072993cda02ef140bc64da1ea6c771c4dc38953db58	29	436 h 14m	18.17
Dwr Cymru Welsh Water	f6db24bd228c16caf981ae1987a42d2b2727607f465cabf606a6e64648b4f5b9	41	435 h 16m	18.12
Dwr Cymru Welsh Water	cec817b28d3526bd6e2c6cb9ef0a64af943831d509895cf50af5cee91d8c6d45	32	408 h 15m	17
Dwr Cymru Welsh Water	a84b05746ec9ac4111b1f92a8f3aa702bbd4aa8cad15c98058a92129d3e954c1	42	404 h 45m	16.83
Dwr Cymru Welsh Water	d6edc99aa6922236d4f1910a4e98930a478ee55328200278b826deddaab88b8d	20	398 h 15m	16.58
Dwr Cymru Welsh Water	fd08729092d2f3cefb129751c3d9786265e16710ed1d3be164c06c5a0cd8134e	24	373 h	15.54
Dwr Cymru Welsh Water	19de3f88b28c84264a12d37b9887fed081fe7a7d4fd0398e35ae335c8d549812	19	358 h	14.92
Dwr Cymru Welsh Water	5ee00de9b1ca76b1103feb3ad93be6f123786fc5758ba83cfa9c77116256d4c1	36	350 h 15m	14.58
Dwr Cymru Welsh Water	0f41ccbb1bf8a40679a1553edd720efe80636e5a83c02b3d12946f0b9ba0f7cb	27	349 h 30m	14.54
Dwr Cymru Welsh Water	e3f6a39aab42d8797cfdce8defe3291910177e7dbfdb4b3b847d9a06caa01d35	23	314 h 50m	13.08
Dwr Cymru Welsh Water	5551476abba9eb4c771e06aa233724dd97eea490bfa08b7748a5965741e70b70	22	295 h 14m	12.29
Dwr Cymru Welsh Water	9e114e1516c15a222992bbdd524e149072d2a9c2f258e842e7621a67decd3817	29	290 h 45m	12.08
Dwr Cymru Welsh Water	45b35f497df9b14b9f7fd14dbb066709b1a4131f48084c55e84d4d1f1f204615	23	279 h	11.62
Dwr Cymru Welsh Water	86610815ccd8a7c34cfe2374b36af423b0d3e1099a15e46e447c5782b13b2f5f	20	264 h	11
Dwr Cymru Welsh Water	bf5a1a0dc9c3a333c4c0813cbc4eea0f76aefd2d50a5797aae36afe45438e669	19	239 h 5m	9.96
Dwr Cymru Welsh Water	33d1f6ad1eb3fbe0f4af87a759c0575caad554c39f8f731a8ff78fbfd2047410	31	234 h	9.75
Dwr Cymru Welsh Water	0cd089d057b3e9f3e131658349dbd71c28ceacea53a64e8fe9afa6d3d749bda2	20	227 h	9.46
Dwr Cymru Welsh Water	a99c37a3662d38d703870f90f5831fd5bac27e47302d6f13254562cac99a3d52	15	218 h 14m	9.08
Dwr Cymru Welsh Water	12df989fcfe96b6b6944247a5a2dd07bcb95be5c9d784f68d841331fd8d88370	24	215 h 30m	8.96
Dwr Cymru Welsh Water	57225cb2e1f148cdb618eefb47c665f655987fc7f2bcad110b49568ab003009d	14	214 h 19m	8.92
Dwr Cymru Welsh Water	b85a9d2b83e89716e7a72bba50d75718e903fe02436550804678966eac2e2161	13	179 h 45m	7.46
Dwr Cymru Welsh Water	cb48e8b6357f18d23b10d19fddde6cc405d4a9a06dc4b6a8e643849248522c03	9	179 h 20m	7.46
Dwr Cymru Welsh Water	f818d7a465e23773e4a883291af754945917cb459029a9c6bc75dabf2620d0a0	19	172 h 20m	7.17
Dwr Cymru Welsh Water	8c2bb8874d6ab5dd9925f9e7b95a4d940853ffbcffb4484fbe0804c03b21bd61	11	171 h	7.12
Dwr Cymru Welsh Water	f563a2b9fc4d7d2feea96c14520bf45d6ded673c7623d7732593aea48b7efa3f	12	145 h 30m	6.04
Dwr Cymru Welsh Water	e1c3c9ae3a818ee67c6d58fc9d5d41ca2c593fd54a911382e1163b57274f7689	11	128 h 5m	5.33
Dwr Cymru Welsh Water	4a92935e24733b271d536e34a32afa51a896bb56f2376f2f1cc3f20cd71bbbbc	19	122 h 48m	5.08
Dwr Cymru Welsh Water	71c3fc1b1e28102f6ed9b97029d397c6cfa54c7d856dc645dcb78f103578a0d8	19	111 h 53m	4.62
Dwr Cymru Welsh Water	fd4b6f5afe638317495bf060e56a3f4978a6e1c6cdd5213436bb7b4f65df31c3	13	102 h 45m	4.25
Dwr Cymru Welsh Water	6ac233434d6ddc92807d56c77fad8ad22cb5cd019127f3a31963a21371990fb7	20	92 h 31m	3.83
Dwr Cymru Welsh Water	150a092d8e5057b73da179068be804e46c919f646766a3bbb1216ad815c1cf10	15	90 h 45m	3.75
Dwr Cymru Welsh Water	273e1111b2f035aeab59dc309342a2d6cb64bf280d0741cfb6d3197c04d0a242	20	89 h 15m	3.71
Dwr Cymru Welsh Water	579e4eadb7eb9d0a5d3f7841ffa8f107110963e4a4a7cd1bb35650642802532c	7	89 h	3.71
Dwr Cymru Welsh Water	6f01380fe24355e8f853d652f01310651298b081c5f4227963289795348f2aea	12	84 h	3.5
Dwr Cymru Welsh Water	66a0b1c99e782cb739b687a1c2576f3511f0a167c12a0435ce42439d492dbf71	28	81 h 45m	3.38
Dwr Cymru Welsh Water	1cec313f16e9b24ca7fd5937ed1937a5a27246c686a327377282bef2eba2a43f	26	76 h	3.17
Dwr Cymru Welsh Water	d627ba92d9f170f435a003cfb519a93581e20f30635e724342b6389fa62f3569	8	71 h 15m	2.96
Dwr Cymru Welsh Water	9515444a4a96fd0365d34add4a2e81f08a9fcc5866b4f899662e26bf91f34527	14	66 h 21m	2.75
Dwr Cymru Welsh Water	08d30606c848d495c054be2af478ef124cd9db511757842e4d06c7fec6e66025	26	60 h 8m	2.5
Dwr Cymru Welsh Water	c3995b416b394bc7d2daac94e0f83a828d5e2ab50aed9e8c6dada70ca1e68145	15	54 h	2.25
Dwr Cymru Welsh Water	5cff4a06e89b891cdbfd7fc6377e10d340497de87c070e32d4bafbd0a9f821e3	12	52 h 15m	2.17
Dwr Cymru Welsh Water	c6df12a3fa4c82dc4917586f3685f0feae43cbb1477c808828d31a4511df6575	17	51 h 11m	2.12
Dwr Cymru Welsh Water	7f4b52eeea9093ac94175c353f30ae8ff6ee5caa5f032aa353bf3a5228977bf2	10	49 h 15m	2.04
Dwr Cymru Welsh Water	860113e5326028d400b0b3cfcc2d59afd6d2e282b7abc1feaaa9519e8af66fe6	31	44 h 26m	1.83
Dwr Cymru Welsh Water	2b1e5dee5c3e3ca1097351e41214848e8a1602b55f0fd34e1dbc223e60f74690	10	43 h 57m	1.79
Dwr Cymru Welsh Water	7713c432c88ca308059a606eea9d1cef3bb489c15074d876bce3d4ef93991853	6	41 h 30m	1.71
Dwr Cymru Welsh Water	e1e77cefc593e3c68ebf9779fd29f6b9baddfddb0060611a0bbcad5a9c6eef8c	28	38 h 45m	1.58
Dwr Cymru Welsh Water	06b8cfb0c00e791664c03de3288f1e7334a48c82b8fc43feafa2ecad98104535	5	37 h 45m	1.54
Dwr Cymru Welsh Water	11745e7dad8ce9605b8ac2c153b6f1860a176d9ddc136ae9dea8ecf5ee25a520	8	34 h 56m	1.42
Dwr Cymru Welsh Water	a227c1933add604b077299f46a07d17a4ff6bc228c3ce8179169ee2e32210ae6	5	29 h 15m	1.21
Dwr Cymru Welsh Water	8a7a167a7f2e112e7bd1dcd9add2dc3a4892c95f9cbdfe4c3be20550484b4a9f	3	28 h 15m	1.17
Dwr Cymru Welsh Water	ffa88f6ef1d67e5002602650353db681f30b6cb6a2403721552b49d00c75e643	4	28 h 10m	1.17
Dwr Cymru Welsh Water	4b68478e07c3d0a641e94ff90219ef570a80cc866038ecfb6be8f918ea3f1587	5	26 h 5m	1.08
Dwr Cymru Welsh Water	479eb1224d72b8e313ba28dbf2a090db35e77f45bc276f7c3eece7aef469908e	5	25 h 15m	1.04
Dwr Cymru Welsh Water	f139d5fa417b96b5b1b926679c2bf273d4c0a7a8223d19d6820e70921258aebf	6	17 h 4m	0.71
Dwr Cymru Welsh Water	b9a9e8fa8a0edb26ea357741e2fa399419720f0761ea29db0ad9e5784d65a7aa	4	14 h	0.58
Dwr Cymru Welsh Water	97da7d3aa387a9b612f1d02ef4e1c003b0c6e5f65c93d7978b6e2375de128a38	10	12 h 30m	0.5
Dwr Cymru Welsh Water	17bc4ade4684358975ebf592c3bcf0d9d16d0bee2378c330236c263f9cb682cd	3	11 h 15m	0.46
Dwr Cymru Welsh Water	ab2ec07507588e6a0bede97ff9231f4e5b0e7c2e6543cd3c7cafb3e3ce876768	8	10 h 45m	0.42
Dwr Cymru Welsh Water	0f50927cab7b4a2cf77efea571df10fa2cdac16484ee07ec6a116dae5a61e1d3	5	9 h 42m	0.38
Dwr Cymru Welsh Water	7b650b3589ba8d53d68a7fa64541ac0e0576a2a69dea209953f1a7568638cda2	7	8 h 12m	0.33
Dwr Cymru Welsh Water	43363866bc81e8e4113eb61789117b7894bb64fc53006128732856c8c0e60b6e	4	8 h	0.33
Dwr Cymru Welsh Water	4b5b35bb3e2e077b027602f1d53f1cd2f144001858da5a513715d3110c3d0bde	4	7 h 15m	0.29
Dwr Cymru Welsh Water	f33e2dc0fb513814a328a255755dee39b10cba43f47a780f8f115af2778e4aa2	3	6 h 45m	0.25
Dwr Cymru Welsh Water	36c4d65fb7be30750272109df277f1258347860cf1dfc6fd8730339b78da3abf	5	6 h 41m	0.25
Dwr Cymru Welsh Water	55626960417dd8fed118832164ef86930155352c3ca5ce6e37c735e3cf916398	1	6 h 15m	0.25
Dwr Cymru Welsh Water	12e1ea67752a9705535981b823e2332320dc2750c8b34f5e0fefb0011ef46fb7	5	5 h 44m	0.21
Dwr Cymru Welsh Water	5d7b61145cab4a4e1e2441d498386e170910480d05a3d27e1646c00e3f15e0d8	2	5 h 40m	0.21
Dwr Cymru Welsh Water	15e2a445b38711e518910ed4162a51af0e0a11f29b2c0ad7d7ffbd76e6a707c8	5	5 h 15m	0.21
Dwr Cymru Welsh Water	f489c5bc545a245bdf436bf173d3bcc8125cbe3d902ec6eadf721a574cf829fb	1	4 h 30m	0.17
Dwr Cymru Welsh Water	6ac19b03bb4d73d145b3b67e178093175f8ec3cc1116e62d23e83e156ffc3586	2	4 h 15m	0.17
Dwr Cymru Welsh Water	ba7d2864155d6f1759348cc079a89e8796e0801cb1e04dedd7815a960db21870	4	3 h 29m	0.12
Dwr Cymru Welsh Water	79288f109de887a5501171b3c602f8e736c5db0b3a8f06c459c6e52a371bb07c	2	3 h	0.12
Dwr Cymru Welsh Water	6d17a245ec441a5664f9bfd24e74f6dabdf516c634209540b9b8022a902a872a	1	3 h	0.12
Dwr Cymru Welsh Water	a50f6c9975b1e1810b59fbb53c147307cc52fdd573258022be3f181a875b34af	4	2 h 30m	0.08
Dwr Cymru Welsh Water	328e62d5a280dc523fa9b345dcd4d10e7ac2385328c539a7adf16986c5b6adaa	1	2 h 30m	0.08
Dwr Cymru Welsh Water	84f51bcf5d06871b8e4afa6cce761ec3da1bad88ffcac5205eef4abbc7051039	2	2 h 15m	0.08
Dwr Cymru Welsh Water	1f7df783a641a65cb81ae901556724cd8015fa2996bd7295e4ad27e0ece3f35f	1	1 h 59m	0.04
Dwr Cymru Welsh Water	db58c028f06a348942a2e1c62b93a9cfe471578dfcd4fa5fca15e46071e7331d	1	0 h 45m	0
Dwr Cymru Welsh Water	d2fdc364a6a3c219a0bb707af2e2658c67cc6b64f80097950223a76982b9f336	1	0 h 30m	0
Dwr Cymru Welsh Water	de703b88a517d9f9619787d9cd14f072872dce791344437aa55a2d4b28f3d388	1	0 h 13m	0
Dwr Cymru Welsh Water	73527d3e5d70c0246d574adc79b7c59a99b4a996cae3d60bb679aeaa59caf20d	0	0 h	0
Dwr Cymru Welsh Water	582a809bff862d31ff9a2ceccb077f4bef906bd98866511e2a1e384c541bfaf1	0	0 h	0
Dwr Cymru Welsh Water	58c1e542e79478ef5b5ce09d590bc1e1658564671e545383a0794d562d6413ac	0	0 h	0
Dwr Cymru Welsh Water	e3859b9de5d8381b4afed035de1bcc32783142d31d9a61370cd38b4bee99b350	0	0 h	0
Dwr Cymru Welsh Water	9b70896cf572c538efc412cd972ab60cb19a3aa86fbaf12b3f76b3bff16cdf8c	0	0 h	0
Dwr Cymru Welsh Water	e2fe0dde4c89f877350f467230680eb008f3fed15979ba53ad32149059364cdf	0	0 h	0
Dwr Cymru Welsh Water	85c10186b168e0b00a912efa669b144afe371506a3e9a05bfe6227a65fda6d48	0	0 h	0
Dwr Cymru Welsh Water	30bb0cb8b56065feae1ee4e574327be896e4b40e06dd739b3bb445a8a0ec22a8	0	0 h	0
Dwr Cymru Welsh Water	4ad243e2788df7047e9eca2ef045c8d5c61d3ed856a4ca8a0e423d646727006c	0	0 h	0
Dwr Cymru Welsh Water	c0ae04133f09e6de38cd22b3c5146e635bc0bf5d7d2bd4566d4e10d07aa4d709	0	0 h	0
Dwr Cymru Welsh Water	742606591086b9e783a82d6edad365a90ab53a20331673a7508c49b4e7531be6	0	0 h	0
Dwr Cymru Welsh Water	9a3f84fb2c3e75a279985d293255a76aa9f2fef28a564f2c70dcbf3c62be4001	0	0 h	0
Dwr Cymru Welsh Water	74dd0f7d87e0d8c2c0f6f8c083713ea2824f202922d09c79673a54d327092e98	0	0 h	0
Dwr Cymru Welsh Water	fd8273a13c6b1685ad444ad2be38a01f7a67a9f8657802f122a927c2ac4e689a	0	0 h	0
Dwr Cymru Welsh Water	94ae49a8a727c7324515b19bd88ffb75bc428891dcd70ab11ab5092fcc8df109	0	0 h	0
Dwr Cymru Welsh Water	b7ef25e782dc9c59e22276090bb511ed6df0e37e5dcc2bb56246e2334a018d48	0	0 h	0
Dwr Cymru Welsh Water	ce0307771cbe77943ac87a4c9a4c74ded9ae741f20461a25ae64d58f6b61d9b3	0	0 h	0
Dwr Cymru Welsh Water	1a92ad29ba8973dd3eb39887c13005c0bdf0e4884f285ccfcff3b3fab119c104	0	0 h	0
Dwr Cymru Welsh Water	5c70a75d55cc04b7f60060d9d2ddafd5171c062515eb64f125b8eb9ab0cdbbb3	0	0 h	0
Dwr Cymru Welsh Water	4bd42257100c3533b12b353b81c4fd001d3fcd7eb5c1c21719b63baf5c9bd717	0	0 h	0
Dwr Cymru Welsh Water	727e288c23dc8ad0a1316f2b01eb45108198ce4e78e3b9a26a631a15b96bfa9f	0	0 h	0
Dwr Cymru Welsh Water	9c7c10c54352a4d4bbbb7cb9c925393bd60d52b96c85e253b1b4a34347ea0d5e	0	0 h	0
Dwr Cymru Welsh Water	06f1a1fecd168bd8be245158062c24210b4cdf64b82170d4eae8840431f2e67e	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.

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Analysing sewage pollution by the Water Industry

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Ceredigion Preseli - Live Sewage Polluted by sewage 28,441 hours in 2026 - That's 3.29 years so far..

Ceredigion Preseli - Live Sewage