Polluted by sewage 39,909 hours in 2025 - That's 4.62 years
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We get information about overflowing CSOs since January 2025. Here is a chart of the last three months of data for North Cornwall, 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.
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Donate Now| Company | Site Name | Receiving Waterway | Overflow Days | Total Duration (hours) | Total Duration (days) |
|---|---|---|---|---|---|
| South West Water | ALTARNUN STW_SSO_ALTARNUN | Penpont Water | 130 | 2,465 h 37m | 102.71 |
| South West Water | DELABOLE STW_SSO_DELABOLE | River Allen | 117 | 2,254 h 57m | 93.92 |
| South West Water | BEALS MILL STW_SO_REZARE | River Inny | 94 | 1,767 h 52m | 73.62 |
| South West Water | ALTARNUN STW_SSO_ALTARNUN | Penpont Water | 65 | 1,544 h 32m | 64.33 |
| South West Water | DELABOLE STW_SSO_DELABOLE | River Allen | 56 | 1,241 h 7m | 51.71 |
| South West Water | BEALS MILL SPS_PSCSOEO_BEALS MILL | River Inny | 59 | 1,216 h 27m | 50.67 |
| South West Water | LEZANT SPS_PSCSOEO_LEZANT | River Inny | 61 | 1,128 h 40m | 47 |
| South West Water | ST LEONARDS STW_SSO_LAUNCESTON | River Tamar | 63 | 1,105 h 10m | 46.04 |
| South West Water | SOUTH PETHERWIN SPS_PSCSOEO_LAUNCESTON | Lowley Brook | 59 | 1,096 h 44m | 45.67 |
| South West Water | TREBULLETT STW_SO_TREBULLETT | River Inny | 77 | 1,070 h 38m | 44.58 |
| South West Water | ST MERRYN_CSO_ST MERRYN | Mother Iveys Bay | 76 | 1,053 h 59m | 43.88 |
| South West Water | POLYPHANT SPST_PSCSOEO_POLYPHANT | River Inny | 81 | 1,018 h 56m | 42.42 |
| South West Water | NORTH PETHERWIN STW_SO_NORTH PETHERWIN | River Ottery | 57 | 1,014 h 17m | 42.25 |
| South West Water | WARBSTOW STW_SO_WARBSTOW | Middle River Ottery | 50 | 980 h 1m | 40.83 |
| South West Water | BEALS MILL SPS_PSCSOEO_BEALS MILL | River Inny | 43 | 949 h 21m | 39.54 |
| South West Water | SHOP STW_SO_SHOP | Coombe Valley Stream | 44 | 915 h 53m | 38.12 |
| South West Water | LEZANT SPS_PSCSOEO_LEZANT | River Inny | 43 | 892 h 28m | 37.17 |
| South West Water | ST MERRYN_CSO_ST MERRYN | Mother Iveys Bay | 46 | 875 h 25m | 36.46 |
| South West Water | NORTH PETHERWIN STW_SO_NORTH PETHERWIN | River Ottery | 39 | 828 h 51m | 34.5 |
| South West Water | TREBULLETT STW_SO_TREBULLETT | River Inny | 40 | 800 h 37m | 33.33 |
| South West Water | KILKHAMPTON STW_SSO_KILKHAMPTON | Coombe Valley Stream | 66 | 787 h 19m | 32.79 |
| South West Water | NEWPORT_CSO_LAUNCESTON | River Kensey | 97 | 783 h 8m | 32.62 |
| South West Water | SOUTH PETHERWIN SPS_PSCSOEO_LAUNCESTON | Lowley Brook | 34 | 763 h 21m | 31.79 |
| South West Water | ST LEONARDS STW_SSO_LAUNCESTON | River Tamar | 37 | 716 h 5m | 29.83 |
| South West Water | POLYPHANT SPST_PSCSOEO_POLYPHANT | River Inny | 55 | 703 h 46m | 29.29 |
| South West Water | EGLOSKERRY STW_SO_EGLOSKERRY | River Kensey | 38 | 687 h 9m | 28.62 |
| South West Water | STOKE CLIMSLAND STW_SO_STOKE CLIMSLAND | Unknown | 39 | 590 h 46m | 24.58 |
| South West Water | LITTLE PETHERICK STW_SO_WADEBRIDGE | Little Petherick Creek | 40 | 568 h 28m | 23.67 |
| South West Water | WARBSTOW STW_SO_WARBSTOW | Middle River Ottery | 24 | 527 h 36m | 21.96 |
| South West Water | EGLOSKERRY STW_SO_EGLOSKERRY | River Kensey | 63 | 481 h 11m | 20.04 |
| South West Water | KILKHAMPTON STW_SSO_KILKHAMPTON | Coombe Valley Stream | 29 | 456 h 55m | 19 |
| South West Water | WAR MEMORIAL SPS_PSCSOEO_ALTARNUN | Peneont Water | 23 | 432 h | 18 |
| South West Water | NANSTALLON STW_SSO_BODMIN | River Camel/St Lawrence Str | 24 | 408 h 47m | 17 |
| South West Water | TREVONE SPST_PSCSOEO_PADSTOW | Trevone Bay | 20 | 391 h 28m | 16.29 |
| South West Water | NANSTALLON STW_SSO_BODMIN | River Camel/St Lawrence Str | 26 | 382 h 14m | 15.92 |
| South West Water | BEALS MILL STW_SO_REZARE | River Inny | 28 | 367 h 41m | 15.29 |
| South West Water | SHOP STW_SO_SHOP | Coombe Valley Stream | 22 | 356 h 18m | 14.83 |
| South West Water | NORTH HILL STW_SO_NORTH HILL | River Lynher | 86 | 313 h 41m | 13.04 |
| South West Water | LITTLE PETHERICK STW_SO_WADEBRIDGE | Little Petherick Creek | 66 | 309 h 12m | 12.88 |
| South West Water | BATHPOOL STW_SO_BATHPOOL | River Lyner | 15 | 253 h 9m | 10.54 |
| South West Water | HELEBRIDGE STW_SO_BUDE | Bude Bay | 51 | 229 h 3m | 9.54 |
| South West Water | TREKNOW STW_SSO_TREBARWITH | Unknown | 11 | 213 h 56m | 8.88 |
| South West Water | YEOLMBRIDGE_CSO_YEOLMBRIDGE | River Yeolm | 21 | 211 h 49m | 8.79 |
| South West Water | STOKE CLIMSLAND STW_SO_STOKE CLIMSLAND | Unknown | 51 | 205 h 18m | 8.54 |
| South West Water | TREDRIZZICK SPS_PSCSOEO_TREDRIZZICK | Unknown | 19 | 199 h 36m | 8.29 |
| South West Water | YEOLMBRIDGE_CSO_YEOLMBRIDGE | River Yeolm | 24 | 190 h 48m | 7.92 |
| South West Water | YEOLMBRIDGE SPST_PSCSOEO_YEOLMBRIDGE | River Ottery | 36 | 189 h 38m | 7.88 |
| South West Water | HELEBRIDGE STW_SO_BUDE | Bude Bay | 23 | 177 h 3m | 7.38 |
| South West Water | TINTAGEL CASTLE ROAD_PSCSOEO_TINTAGEL | Atlantic Ocean | 15 | 167 h 3m | 6.96 |
| South West Water | CAMELFORD STW_SO_CAMELFORD | River Camel | 25 | 163 h 6m | 6.79 |
| South West Water | CAMELFORD STW_SO_CAMELFORD | River Camel | 20 | 160 h 28m | 6.67 |
| South West Water | BOSSINEY BACK LANE_PSCSOEO_TINTAGEL | Atlantic Ocean | 10 | 153 h 21m | 6.38 |
| South West Water | EGLOSKERRY SPS_PSCSOEO_LAUNCESTON | River Ottery | 16 | 152 h 44m | 6.33 |
| South West Water | NEWPORT_CSO_LAUNCESTON | River Kensey | 31 | 152 h 25m | 6.33 |
| South West Water | BATHPOOL STW_SO_BATHPOOL | River Lyner | 13 | 146 h 9m | 6.08 |
| South West Water | MADEIRA DRIVE SPS_PSCSOEO_BUDE | Widemouth Bay | 24 | 144 h 42m | 6 |
| South West Water | SCARNE IND ESTATE SPS_PSCSOEO_LAUNCESTON | Lowley Brook | 19 | 142 h 17m | 5.92 |
| South West Water | OLD COACH RD_CSO_LANIVET | Lanivet Stream | 15 | 135 h 34m | 5.62 |
| South West Water | YEOLMBRIDGE SPST_PSCSOEO_YEOLMBRIDGE | River Ottery | 36 | 133 h 43m | 5.54 |
| South West Water | TREHEMBOURNE SPS_PSCSOEO_ST MERRYN | Treyarnon Stream | 14 | 109 h 29m | 4.54 |
| South West Water | TREDRIZZICK SPS_PSCSOEO_TREDRIZZICK | Unknown | 13 | 102 h 35m | 4.25 |
| South West Water | MADEIRA DRIVE SPS_PSCSOEO_BUDE | Widemouth Bay | 16 | 100 h 36m | 4.17 |
| South West Water | EGLOSKERRY SPS_PSCSOEO_LAUNCESTON | River Ottery | 9 | 88 h 54m | 3.67 |
| South West Water | TREKNOW STW_SSO_TREBARWITH | Unknown | 7 | 82 h 3m | 3.42 |
| South West Water | WEEK ST MARY STW_SO_WEEK ST MARY | Unknown | 18 | 79 h 39m | 3.29 |
| South West Water | ST LEONARDS STW_SO_LAUNCESTON | River Tamar | 13 | 74 h 40m | 3.08 |
| South West Water | ST LEONARDS STW_SO_LAUNCESTON | River Tamar | 26 | 72 h 10m | 3 |
| South West Water | NORTH HILL STW_SO_NORTH HILL | River Lynher | 6 | 70 h 47m | 2.92 |
| South West Water | ST TEATH STW_SO_ST TEATH | River Allen | 33 | 68 h 47m | 2.83 |
| South West Water | CHAPEL AMBLE S T SEPTNK_SO_CHAPEL AMBLE | River Amble | 10 | 67 h 18m | 2.79 |
| South West Water | ST COLUMB STW_SSO_ST COLUMB | River Menahyl | 7 | 62 h 1m | 2.58 |
| South West Water | OLD MILL SPST_PSCSOEO_STOKE CLIMSLAND | Alren Stream | 7 | 61 h 10m | 2.54 |
| South West Water | WADEBRIDGE SPST_PSCSOEO_WADEBRIDGE | Camel Estuary | 11 | 60 h 56m | 2.5 |
| South West Water | VILLAGE SPS_PSCSOEO_ST MAWGAN | River Menalhyl | 10 | 60 h 53m | 2.5 |
| South West Water | BOSSINEY BACK LANE_PSCSOEO_TINTAGEL | Atlantic Ocean | 10 | 52 h 36m | 2.17 |
| South West Water | PADSTOW FORESHORE SPST_PSCSOEO_PADSTOW | River Camel Estuary | 12 | 52 h 10m | 2.17 |
| South West Water | TREVONE SPST_PSCSOEO_PADSTOW | Trevone Bay | 4 | 50 h 34m | 2.08 |
| South West Water | CHAPEL AMBLE S T SEPTNK_SO_CHAPEL AMBLE | River Amble | 7 | 50 h 12m | 2.08 |
| South West Water | PADSTOW FORESHORE SPST_PSCSOEO_PADSTOW | River Camel Estuary | 13 | 47 h 34m | 1.96 |
| South West Water | TINTAGEL CASTLE ROAD_PSCSOEO_TINTAGEL | Atlantic Ocean | 9 | 47 h 16m | 1.96 |
| South West Water | WADEBRIDGE SPST_PSCSOEO_WADEBRIDGE | Camel Estuary | 7 | 45 h 35m | 1.88 |
| South West Water | SCARNE IND ESTATE SPS_PSCSOEO_LAUNCESTON | Lowley Brook | 7 | 42 h 44m | 1.75 |
| South West Water | OLD MILL SPST_PSCSOEO_STOKE CLIMSLAND | Alren Stream | 12 | 41 h 16m | 1.71 |
| South West Water | WEEK ST MARY STW_SO_WEEK ST MARY | Unknown | 12 | 40 h 10m | 1.67 |
| South West Water | DRAGONS PIT_CSO_BODMIN | St Lawrence Stream | 31 | 37 h 42m | 1.54 |
| South West Water | TREHEMBOURNE SPS_PSCSOEO_ST MERRYN | Treyarnon Stream | 4 | 32 h 41m | 1.33 |
| South West Water | BLOWING HSE LN_CSO_BODMIN | St Lawrence Stream | 19 | 32 h 13m | 1.33 |
| South West Water | JACOBSTOW STW_SO_JACOBSTOW | River Need | 8 | 31 h 18m | 1.29 |
| South West Water | ST MABYN STW_SO_ST MABYN | River Allen | 12 | 29 h 57m | 1.21 |
| South West Water | ST TEATH STW_SO_ST TEATH | River Allen | 14 | 22 h 47m | 0.92 |
| South West Water | LAWHITTON STW_SO_LAWHITTON | River Tamar | 2 | 20 h 51m | 0.83 |
| South West Water | ST GENNYS STW_SSO_ST GENNYS | Unknown | 10 | 20 h 12m | 0.83 |
| South West Water | MARHAMCHURCH SPS_PSCSOEO_BUDE | River Strat | 3 | 20 h 5m | 0.83 |
| South West Water | NEW POLZEATH SPS_PSCSOEO_POLZEATH | Unknown | 5 | 18 h 58m | 0.75 |
| South West Water | JACOBSTOW STW_SO_JACOBSTOW | River Need | 4 | 16 h 1m | 0.67 |
| South West Water | NEW POLZEATH SPS_PSCSOEO_POLZEATH | Unknown | 1 | 14 h 27m | 0.58 |
| South West Water | STIBB STW_SO_STIBB | Coombe Valley Str | 7 | 11 h 29m | 0.46 |
| South West Water | ST GENNYS STW_SSO_ST GENNYS | Unknown | 5 | 11 h 28m | 0.46 |
| South West Water | ST BREWARD STW_SSO_ST BREWARD | Unknown | 5 | 11 h 24m | 0.46 |
| South West Water | LANGORE SPS_PSCSOEO_LAUNCESTON | River Otter | 7 | 10 h 40m | 0.42 |
| South West Water | ST COLUMB STW_SSO_ST COLUMB | River Menahyl | 5 | 10 h 36m | 0.42 |
| South West Water | PORT ISAAC SPS_PSCSOEO_PORT ISAAC | Haven, Atlantic Ocean | 5 | 9 h 58m | 0.38 |
| South West Water | OLD JAIL_CSO_BODMIN | Bodmin Town Leat | 12 | 9 h 52m | 0.38 |
| South West Water | STIBB STW_SO_STIBB | Coombe Valley Str | 4 | 9 h 37m | 0.38 |
| South West Water | PADSTOW HARBOUR SPS_PSCSOEO_PADSTOW | River Camel Estuary | 3 | 9 h 33m | 0.38 |
| South West Water | BLOWING HSE LN_CSO_BODMIN | St Lawrence Stream | 8 | 9 h 22m | 0.38 |
| South West Water | OLD JAIL_CSO_BODMIN | Bodmin Town Leat | 20 | 9 h 21m | 0.38 |
| South West Water | DRAGONS PIT_CSO_BODMIN | St Lawrence Stream | 8 | 8 h 18m | 0.33 |
| South West Water | PORT ISAAC SPS_PSCSOEO_PORT ISAAC | Haven, Atlantic Ocean | 10 | 7 h 26m | 0.29 |
| South West Water | PORTHILLY COVE SPST_PSCSOEO_PORTHILLY 2 | River Camel Estuary Via Sws | 4 | 6 h 18m | 0.25 |
| South West Water | DELABOLE STW_SO_DELABOLE | River Allen | 9 | 6 h 13m | 0.25 |
| South West Water | THE STRAND_CSO_BUDE | River Neet | 5 | 5 h 59m | 0.21 |
| South West Water | MARHAMCHURCH SPS_PSCSOEO_BUDE | River Strat | 2 | 5 h 56m | 0.21 |
| South West Water | LANGORE SPS_PSCSOEO_LAUNCESTON | River Otter | 6 | 5 h 43m | 0.21 |
| South West Water | ST MABYN STW_SO_ST MABYN | River Allen | 2 | 5 h 32m | 0.21 |
| South West Water | ROCK SPS_PSCSOEO_ST MINVER | River Camel Estuary | 2 | 5 h 31m | 0.21 |
| South West Water | STRATTON SPS_PSCSOEO_BUDE | River Neet | 2 | 4 h 43m | 0.17 |
| South West Water | PORT GAVERNE_CSO_PORT GAVERNE | Coastal Stream | 4 | 3 h 55m | 0.12 |
| South West Water | BOSCASTLE SPS_PSCSOEO_BOSCASTLE | Atlantic Ocean | 2 | 3 h 9m | 0.12 |
| South West Water | LAWHITTON STW_SO_LAWHITTON | River Tamar | 3 | 3 h 4m | 0.12 |
| South West Water | ST THOMAS RD_CSO_LAUNCESTON | River Kensey | 4 | 3 h | 0.12 |
| South West Water | PORT GAVERNE_CSO_PORT GAVERNE | Coastal Stream | 3 | 2 h 39m | 0.08 |
| South West Water | PORTHILLY COVE SPST_PSCSOEO_PORTHILLY 2 | River Camel Estuary Via Sws | 1 | 2 h 16m | 0.08 |
| South West Water | STRATTON SPS_PSCSOEO_BUDE | River Neet | 1 | 1 h 56m | 0.04 |
| South West Water | MOYLE RD_CSO_PADSTOW | Camel | 8 | 1 h 35m | 0.04 |
| South West Water | CASTLE SPST_PSCSOEO_BUDE | River Neet | 1 | 1 h 25m | 0.04 |
| South West Water | ST BREWARD STW_SSO_ST BREWARD | Unknown | 2 | 1 h 25m | 0.04 |
| South West Water | LEWANNICK STW_SO_LEWANNICK | Penpont | 1 | 1 h 25m | 0.04 |
| South West Water | LANIVET INN_CSO_LANIVET | Lanivet Stream | 1 | 1 h 3m | 0.04 |
| South West Water | VILLAGE SPS_PSCSOEO_ST MAWGAN | River Menalhyl | 1 | 0 h 59m | 0 |
| South West Water | ST THOMAS RD_CSO_LAUNCESTON | River Kensey | 2 | 0 h 58m | 0 |
| South West Water | NANNY MOORES BRIDGE_CSO_BUDE | River Neet | 1 | 0 h 57m | 0 |
| South West Water | DUTSON ROAD_CSO_LAUNCESTON | River Kensey | 3 | 0 h 48m | 0 |
| South West Water | OLD COACH RD_CSO_LANIVET | Lanivet Stream | 1 | 0 h 40m | 0 |
| South West Water | LEWANNICK STW_SO_LEWANNICK | Penpont | 1 | 0 h 30m | 0 |
| South West Water | WAR MEMORIAL SPS_PSCSOEO_ALTARNUN | Peneont Water | 2 | 0 h 29m | 0 |
| South West Water | HELEBRIDGE STW_SSO_BUDE | Bude Bay | 2 | 0 h 27m | 0 |
| South West Water | EGLOSHAYLE ROAD SPS_PSCSOEO_WADEBRIDGE | Camel Estuary | 1 | 0 h 22m | 0 |
| South West Water | LANIVET INN_CSO_LANIVET | Lanivet Stream | 3 | 0 h 20m | 0 |
| South West Water | BOSCASTLE SPS_PSCSOEO_BOSCASTLE | Atlantic Ocean | 1 | 0 h 15m | 0 |
| South West Water | MOYLE RD_CSO_PADSTOW | Camel | 1 | 0 h 6m | 0 |
| South West Water | PORT ISAAC STW_SO_PORT ISAAC | Port Issac Bay, Atlantic | 1 | 0 h 2m | 0 |
| South West Water | TREGADILLET SPS_PSCSOEO_LAUNCESTON | River Kensey | 0 | 0 h | 0 |
| South West Water | DUTSON ROAD_CSO_LAUNCESTON | River Kensey | 0 | 0 h | 0 |
| South West Water | BUDE CAR PARK_CSO_BUDE | Bude Bay | 0 | 0 h | 0 |
| South West Water | NORTH PETHERWIN_PSCSOEO_LAUNCESTON | River Ottery | 0 | 0 h | 0 |
| South West Water | PENPONT VIEW_CSO_ALTARNUN | Mill Leat | 0 | 0 h | 0 |
| South West Water | NANNY MOORES BRIDGE_CSO_BUDE | River Neet | 0 | 0 h | 0 |
| South West Water | DELABOLE STW_SO_DELABOLE | River Allen | 0 | 0 h | 0 |
| South West Water | CROOKLETS_CSO_BUDE | River Neet | 0 | 0 h | 0 |
| South West Water | EGLOSHAYLE ROAD SPS_PSCSOEO_WADEBRIDGE | Camel Estuary | 0 | 0 h | 0 |
| South West Water | ST. COLUMB MAJOR_CSO_ST COLUMB | River Menathyl | 0 | 0 h | 0 |
| South West Water | MARKET PLACE_CSO_CAMELFORD | River Camel | 0 | 0 h | 0 |
| South West Water | THE STRAND_CSO_BUDE | River Neet | 0 | 0 h | 0 |
| South West Water | HELEBRIDGE STW_SSO_BUDE | Bude Bay | 0 | 0 h | 0 |
| South West Water | MARKET SQUARE_CSO_CAMELFORD | River Camel | 0 | 0 h | 0 |
| South West Water | CASTLE SPST_PSCSOEO_BUDE | River Neet | 0 | 0 h | 0 |
| South West Water | PORT ISAAC STW_SO_PORT ISAAC | Port Issac Bay, Atlantic | 0 | 0 h | 0 |
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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