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

What's a potential overflow? If the CSO goes 'Offline' while its Overflowing, we don't know if it stopped overflowing until we get a 'Stop' event.

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Sewage pollution map of North Cornwall: 39,768 hours in 2025

Company	Site Name	Receiving Waterway	Overflow Days	Total Duration (hours)	Offline/Potential Pollution
South West Water	ALTARNUN STW_SSO_ALTARNUN	Penpont Water	130	2,465h 37m	-
South West Water	DELABOLE STW_SSO_DELABOLE	River Allen	117	2,254h 57m	-
South West Water	BEALS MILL STW_SO_REZARE	River Inny	94	1,767h 52m	-
South West Water	ALTARNUN STW_SSO_ALTARNUN	Penpont Water	66	1,568h 32m	-
South West Water	BEALS MILL SPS_PSCSOEO_BEALS MILL	River Inny	59	1,216h 27m	-
South West Water	DELABOLE STW_SSO_DELABOLE	River Allen	54	1,176h 12m	88 h
South West Water	LEZANT SPS_PSCSOEO_LEZANT	River Inny	61	1,128h 40m	-
South West Water	ST LEONARDS STW_SSO_LAUNCESTON	River Tamar	63	1,105h 10m	-
South West Water	SOUTH PETHERWIN SPS_PSCSOEO_LAUNCESTON	Lowley Brook	59	1,096h 44m	-
South West Water	TREBULLETT STW_SO_TREBULLETT	River Inny	77	1,070h 38m	-
South West Water	ST MERRYN_CSO_ST MERRYN	Mother Iveys Bay	76	1,053h 59m	-
South West Water	POLYPHANT SPST_PSCSOEO_POLYPHANT	River Inny	81	1,018h 56m	-
South West Water	NORTH PETHERWIN STW_SO_NORTH PETHERWIN	River Ottery	57	1,014h 17m	-
South West Water	WARBSTOW STW_SO_WARBSTOW	Middle River Ottery	50	980h 1m	-
South West Water	BEALS MILL SPS_PSCSOEO_BEALS MILL	River Inny	43	949h 21m	-
South West Water	SHOP STW_SO_SHOP	Coombe Valley Stream	44	915h 53m	-
South West Water	LEZANT SPS_PSCSOEO_LEZANT	River Inny	43	892h 28m	-
South West Water	ST MERRYN_CSO_ST MERRYN	Mother Iveys Bay	46	875h 25m	-
South West Water	NORTH PETHERWIN STW_SO_NORTH PETHERWIN	River Ottery	39	828h 51m	-
South West Water	TREBULLETT STW_SO_TREBULLETT	River Inny	40	800h 37m	-
South West Water	KILKHAMPTON STW_SSO_KILKHAMPTON	Coombe Valley Stream	66	787h 19m	-
South West Water	NEWPORT_CSO_LAUNCESTON	River Kensey	97	783h 8m	-
South West Water	SOUTH PETHERWIN SPS_PSCSOEO_LAUNCESTON	Lowley Brook	34	763h 21m	-
South West Water	ST LEONARDS STW_SSO_LAUNCESTON	River Tamar	37	716h 5m	-
South West Water	POLYPHANT SPST_PSCSOEO_POLYPHANT	River Inny	56	704h	-
South West Water	EGLOSKERRY STW_SO_EGLOSKERRY	River Kensey	38	687h 9m	-
South West Water	STOKE CLIMSLAND STW_SO_STOKE CLIMSLAND	Unknown	39	590h 46m	-
South West Water	WARBSTOW STW_SO_WARBSTOW	Middle River Ottery	24	527h 36m	-
South West Water	LITTLE PETHERICK STW_SO_WADEBRIDGE	Little Petherick Creek	37	485h 48m	82 h
South West Water	EGLOSKERRY STW_SO_EGLOSKERRY	River Kensey	63	481h 11m	165 h
South West Water	KILKHAMPTON STW_SSO_KILKHAMPTON	Coombe Valley Stream	29	456h 55m	-
South West Water	WAR MEMORIAL SPS_PSCSOEO_ALTARNUN	Peneont Water	23	432h	-
South West Water	NANSTALLON STW_SSO_BODMIN	River Camel/St Lawrence Str	24	408h 47m	-
South West Water	TREVONE SPST_PSCSOEO_PADSTOW	Trevone Bay	20	391h 28m	-
South West Water	NANSTALLON STW_SSO_BODMIN	River Camel/St Lawrence Str	26	382h 14m	-
South West Water	BEALS MILL STW_SO_REZARE	River Inny	28	367h 41m	-
South West Water	SHOP STW_SO_SHOP	Coombe Valley Stream	22	356h 18m	-
South West Water	NORTH HILL STW_SO_NORTH HILL	River Lynher	86	313h 41m	-
South West Water	LITTLE PETHERICK STW_SO_WADEBRIDGE	Little Petherick Creek	66	309h 12m	-
South West Water	BATHPOOL STW_SO_BATHPOOL	River Lyner	15	253h 9m	-
South West Water	HELEBRIDGE STW_SO_BUDE	Bude Bay	51	229h 3m	-
South West Water	TREKNOW STW_SSO_TREBARWITH	Unknown	11	213h 56m	-
South West Water	YEOLMBRIDGE_CSO_YEOLMBRIDGE	River Yeolm	21	211h 49m	-
South West Water	STOKE CLIMSLAND STW_SO_STOKE CLIMSLAND	Unknown	51	205h 18m	-
South West Water	YEOLMBRIDGE_CSO_YEOLMBRIDGE	River Yeolm	24	190h 48m	-
South West Water	YEOLMBRIDGE SPST_PSCSOEO_YEOLMBRIDGE	River Ottery	36	189h 38m	-
South West Water	TREDRIZZICK SPS_PSCSOEO_TREDRIZZICK	Unknown	19	183h 6m	16 h
South West Water	HELEBRIDGE STW_SO_BUDE	Bude Bay	23	177h 3m	-
South West Water	TINTAGEL CASTLE ROAD_PSCSOEO_TINTAGEL	Atlantic Ocean	15	167h 3m	-
South West Water	CAMELFORD STW_SO_CAMELFORD	River Camel	25	163h 6m	-
South West Water	CAMELFORD STW_SO_CAMELFORD	River Camel	20	160h 28m	-
South West Water	BOSSINEY BACK LANE_PSCSOEO_TINTAGEL	Atlantic Ocean	10	153h 21m	-
South West Water	EGLOSKERRY SPS_PSCSOEO_LAUNCESTON	River Ottery	16	152h 44m	-
South West Water	NEWPORT_CSO_LAUNCESTON	River Kensey	31	152h 25m	-
South West Water	BATHPOOL STW_SO_BATHPOOL	River Lyner	13	146h 9m	-
South West Water	MADEIRA DRIVE SPS_PSCSOEO_BUDE	Widemouth Bay	24	144h 42m	-
South West Water	SCARNE IND ESTATE SPS_PSCSOEO_LAUNCESTON	Lowley Brook	19	142h 17m	-
South West Water	OLD COACH RD_CSO_LANIVET	Lanivet Stream	15	135h 34m	-
South West Water	YEOLMBRIDGE SPST_PSCSOEO_YEOLMBRIDGE	River Ottery	36	133h 43m	-
South West Water	TREHEMBOURNE SPS_PSCSOEO_ST MERRYN	Treyarnon Stream	14	109h 29m	-
South West Water	TREDRIZZICK SPS_PSCSOEO_TREDRIZZICK	Unknown	13	102h 35m	-
South West Water	MADEIRA DRIVE SPS_PSCSOEO_BUDE	Widemouth Bay	16	100h 36m	-
South West Water	EGLOSKERRY SPS_PSCSOEO_LAUNCESTON	River Ottery	9	88h 54m	-
South West Water	TREKNOW STW_SSO_TREBARWITH	Unknown	7	82h 3m	-
South West Water	WEEK ST MARY STW_SO_WEEK ST MARY	Unknown	18	79h 39m	-
South West Water	ST LEONARDS STW_SO_LAUNCESTON	River Tamar	13	74h 40m	-
South West Water	ST LEONARDS STW_SO_LAUNCESTON	River Tamar	26	72h 10m	-
South West Water	NORTH HILL STW_SO_NORTH HILL	River Lynher	6	70h 47m	-
South West Water	ST TEATH STW_SO_ST TEATH	River Allen	33	68h 47m	8 h
South West Water	CHAPEL AMBLE S T SEPTNK_SO_CHAPEL AMBLE	River Amble	10	67h 18m	-
South West Water	ST COLUMB STW_SSO_ST COLUMB	River Menahyl	7	62h 1m	-
South West Water	OLD MILL SPST_PSCSOEO_STOKE CLIMSLAND	Alren Stream	7	61h 10m	192 h
South West Water	WADEBRIDGE SPST_PSCSOEO_WADEBRIDGE	Camel Estuary	11	60h 56m	-
South West Water	VILLAGE SPS_PSCSOEO_ST MAWGAN	River Menalhyl	10	60h 53m	-
South West Water	BOSSINEY BACK LANE_PSCSOEO_TINTAGEL	Atlantic Ocean	10	52h 36m	-
South West Water	PADSTOW FORESHORE SPST_PSCSOEO_PADSTOW	River Camel Estuary	12	52h 10m	-
South West Water	TREVONE SPST_PSCSOEO_PADSTOW	Trevone Bay	4	50h 45m	-
South West Water	CHAPEL AMBLE S T SEPTNK_SO_CHAPEL AMBLE	River Amble	7	50h 12m	-
South West Water	PADSTOW FORESHORE SPST_PSCSOEO_PADSTOW	River Camel Estuary	13	47h 34m	-
South West Water	TINTAGEL CASTLE ROAD_PSCSOEO_TINTAGEL	Atlantic Ocean	9	47h 16m	-
South West Water	WADEBRIDGE SPST_PSCSOEO_WADEBRIDGE	Camel Estuary	7	45h 35m	-
South West Water	SCARNE IND ESTATE SPS_PSCSOEO_LAUNCESTON	Lowley Brook	7	42h 44m	-
South West Water	OLD MILL SPST_PSCSOEO_STOKE CLIMSLAND	Alren Stream	12	41h 16m	-
South West Water	WEEK ST MARY STW_SO_WEEK ST MARY	Unknown	12	40h 10m	-
South West Water	DRAGONS PIT_CSO_BODMIN	St Lawrence Stream	31	37h 42m	-
South West Water	TREHEMBOURNE SPS_PSCSOEO_ST MERRYN	Treyarnon Stream	4	32h 41m	-
South West Water	BLOWING HSE LN_CSO_BODMIN	St Lawrence Stream	19	32h 13m	-
South West Water	JACOBSTOW STW_SO_JACOBSTOW	River Need	8	31h 18m	-
South West Water	ST MABYN STW_SO_ST MABYN	River Allen	12	29h 57m	-
South West Water	ST TEATH STW_SO_ST TEATH	River Allen	14	22h 47m	-
South West Water	LAWHITTON STW_SO_LAWHITTON	River Tamar	2	20h 51m	-
South West Water	ST GENNYS STW_SSO_ST GENNYS	Unknown	10	20h 12m	13 h
South West Water	MARHAMCHURCH SPS_PSCSOEO_BUDE	River Strat	3	20h 5m	-
South West Water	NEW POLZEATH SPS_PSCSOEO_POLZEATH	Unknown	5	18h 58m	-
South West Water	JACOBSTOW STW_SO_JACOBSTOW	River Need	4	16h 1m	-
South West Water	NEW POLZEATH SPS_PSCSOEO_POLZEATH	Unknown	1	14h 27m	-
South West Water	ST BREWARD STW_SSO_ST BREWARD	Unknown	6	12h 2m	213 h
South West Water	STIBB STW_SO_STIBB	Coombe Valley Str	7	11h 29m	-
South West Water	ST GENNYS STW_SSO_ST GENNYS	Unknown	5	11h 28m	-
South West Water	LANGORE SPS_PSCSOEO_LAUNCESTON	River Otter	7	10h 40m	-
South West Water	ST COLUMB STW_SSO_ST COLUMB	River Menahyl	5	10h 36m	-
South West Water	PORT ISAAC SPS_PSCSOEO_PORT ISAAC	Haven, Atlantic Ocean	5	9h 58m	-
South West Water	OLD JAIL_CSO_BODMIN	Bodmin Town Leat	12	9h 52m	-
South West Water	STIBB STW_SO_STIBB	Coombe Valley Str	4	9h 37m	-
South West Water	PADSTOW HARBOUR SPS_PSCSOEO_PADSTOW	River Camel Estuary	3	9h 33m	-
South West Water	BLOWING HSE LN_CSO_BODMIN	St Lawrence Stream	8	9h 22m	-
South West Water	OLD JAIL_CSO_BODMIN	Bodmin Town Leat	20	9h 21m	-
South West Water	DRAGONS PIT_CSO_BODMIN	St Lawrence Stream	8	8h 18m	-
South West Water	MARHAMCHURCH SPS_PSCSOEO_BUDE	River Strat	3	7h 34m	7 h
South West Water	PORT ISAAC SPS_PSCSOEO_PORT ISAAC	Haven, Atlantic Ocean	10	7h 26m	-
South West Water	PORTHILLY COVE SPST_PSCSOEO_PORTHILLY 2	River Camel Estuary Via Sws	4	6h 18m	-
South West Water	DELABOLE STW_SO_DELABOLE	River Allen	9	6h 13m	-
South West Water	LANGORE SPS_PSCSOEO_LAUNCESTON	River Otter	6	5h 43m	-
South West Water	ST MABYN STW_SO_ST MABYN	River Allen	2	5h 32m	-
South West Water	ROCK SPS_PSCSOEO_ST MINVER	River Camel Estuary	2	5h 31m	-
South West Water	STRATTON SPS_PSCSOEO_BUDE	River Neet	2	4h 43m	-
South West Water	PORT GAVERNE_CSO_PORT GAVERNE	Coastal Stream	4	3h 55m	-
South West Water	BOSCASTLE SPS_PSCSOEO_BOSCASTLE	Atlantic Ocean	2	3h 9m	-
South West Water	LAWHITTON STW_SO_LAWHITTON	River Tamar	3	3h 4m	-
South West Water	ST THOMAS RD_CSO_LAUNCESTON	River Kensey	4	3h	-
South West Water	PORT GAVERNE_CSO_PORT GAVERNE	Coastal Stream	3	2h 39m	-
South West Water	PORTHILLY COVE SPST_PSCSOEO_PORTHILLY 2	River Camel Estuary Via Sws	1	2h 16m	-
South West Water	THE STRAND_CSO_BUDE	River Neet	5	2h 6m	191 h
South West Water	STRATTON SPS_PSCSOEO_BUDE	River Neet	1	1h 56m	-
South West Water	MOYLE RD_CSO_PADSTOW	Camel	8	1h 35m	-
South West Water	CASTLE SPST_PSCSOEO_BUDE	River Neet	1	1h 25m	-
South West Water	ST BREWARD STW_SSO_ST BREWARD	Unknown	2	1h 25m	494 h
South West Water	LEWANNICK STW_SO_LEWANNICK	Penpont	1	1h 25m	-
South West Water	LANIVET INN_CSO_LANIVET	Lanivet Stream	1	1h 3m	-
South West Water	VILLAGE SPS_PSCSOEO_ST MAWGAN	River Menalhyl	1	0h 59m	-
South West Water	ST THOMAS RD_CSO_LAUNCESTON	River Kensey	2	0h 58m	-
South West Water	NANNY MOORES BRIDGE_CSO_BUDE	River Neet	1	0h 57m	3 h
South West Water	DUTSON ROAD_CSO_LAUNCESTON	River Kensey	3	0h 48m	-
South West Water	OLD COACH RD_CSO_LANIVET	Lanivet Stream	1	0h 40m	-
South West Water	LEWANNICK STW_SO_LEWANNICK	Penpont	1	0h 30m	-
South West Water	WAR MEMORIAL SPS_PSCSOEO_ALTARNUN	Peneont Water	2	0h 29m	-
South West Water	HELEBRIDGE STW_SSO_BUDE	Bude Bay	2	0h 27m	2,847 h
South West Water	EGLOSHAYLE ROAD SPS_PSCSOEO_WADEBRIDGE	Camel Estuary	1	0h 22m	-
South West Water	LANIVET INN_CSO_LANIVET	Lanivet Stream	3	0h 20m	-
South West Water	BOSCASTLE SPS_PSCSOEO_BOSCASTLE	Atlantic Ocean	1	0h 15m	-
South West Water	MOYLE RD_CSO_PADSTOW	Camel	1	0h 6m	-
South West Water	PORT ISAAC STW_SO_PORT ISAAC	Port Issac Bay, Atlantic	1	0h 2m	-
South West Water	BUDE CAR PARK_CSO_BUDE	Bude Bay	0	0h	0 h
South West Water	DUTSON ROAD_CSO_LAUNCESTON	River Kensey	0	0h	-
South West Water	MARKET SQUARE_CSO_CAMELFORD	River Camel	0	0h	-
South West Water	EGLOSHAYLE ROAD SPS_PSCSOEO_WADEBRIDGE	Camel Estuary	0	0h	-
South West Water	CROOKLETS_CSO_BUDE	River Neet	0	0h	0 h
South West Water	PENPONT VIEW_CSO_ALTARNUN	Mill Leat	0	0h	-
South West Water	BUDE CAR PARK_CSO_BUDE	Bude Bay	0	0h	-
South West Water	THE STRAND_CSO_BUDE	River Neet	0	0h	-
South West Water	NORTH PETHERWIN_PSCSOEO_LAUNCESTON	River Ottery	0	0h	-
South West Water	CROOKLETS_CSO_BUDE	River Neet	0	0h	-
South West Water	DELABOLE STW_SO_DELABOLE	River Allen	0	0h	-
South West Water	ST. COLUMB MAJOR_CSO_ST COLUMB	River Menathyl	0	0h	-
South West Water	TREGADILLET SPS_PSCSOEO_LAUNCESTON	River Kensey	0	0h	95 h
South West Water	CASTLE SPST_PSCSOEO_BUDE	River Neet	0	0h	-
South West Water	NANNY MOORES BRIDGE_CSO_BUDE	River Neet	0	0h	-
South West Water	HELEBRIDGE STW_SSO_BUDE	Bude Bay	0	0h	-
South West Water	PORT ISAAC STW_SO_PORT ISAAC	Port Issac Bay, Atlantic	0	0h	-
South West Water	MARKET PLACE_CSO_CAMELFORD	River Camel	0	0h	-

North Cornwall - 2025 Sewage

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