There were at least 24,558 "sewage spills" into shellfish areas in 2022, lasting an almost unbelievable 161,044 hours

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Contains OS Data © Crown copyright & database right 2021-2023
© Top of the Poops 2021-2023
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Shellfish Areas Ranked for 2022

Here are all the shellfish areas in England and Wales that had sewage overflows in 2022.

Rank Shellfish Area Company Sewage Dumps Change Duration (Hours) Change
1 Teign South West Water 1,688 -238 10,838 -2,802
2 Fal Estuary South West Water 1,513 -121 9,245 -334
3 NORTH WIRRAL (EAST) United Utilities 1,455 -196 8,665 -2,363
4 MORECAMBE BAY EAST United Utilities 524 142 8,528 2,683
5 Exe South West Water 1,385 -363 6,411 -2,689
6 Dart South West Water 1,305 -36 6,123 -191
7 MORECAMBE BAY (LEVEN) United Utilities 450 -13 5,529 -1,663
8 RIBBLE United Utilities 926 -200 5,155 -3,004
9 Morecambe Bay East and Lune (Broadfleet and Plover Scar) United Utilities 419 -164 5,104 -3,467
10 Solway United Utilities 720 -121 4,604 -1,250
11 Ravenglass United Utilities 204 204 4,603 4,603
12 Morecambe Bay (Leven) United Utilities 347 -24 4,484 -697
13 CHICHESTER HARBOUR (CHICHESTER Southern Water 208 -25 4,289 -863
14 Ribble United Utilities 719 -366 4,078 -5,387
15 Tamar South West Water 523 -23 4,056 -151
16 Silloth United Utilities 467 81 4,013 -275
17 Taw/Torridge South West Water 870 -420 3,819 -4,050
18 SILLOTH United Utilities 449 3 3,806 542
19 Duddon and Walney United Utilities 230 -178 2,778 -3,636
20 Morecambe Bay (Leven) and Roose Beck United Utilities 136 -46 2,659 -1,220
21 SOLWAY United Utilities 208 116 2,254 1,730
22 Salcombe South West Water 380 -96 2,207 -1,609
23 Fowey South West Water 585 -167 2,179 -1,805
24 PORTSMOUTH HARBOUR Southern Water 305 25 2,044 620
25 RYDE Southern Water 239 3 2,010 33
26 SOUTHAMPTON WATER Southern Water 253 5 1,966 502
27 COWES, MEDINA Southern Water 189 -19 1,663 -140
28 COWES, RYDE, SPITHEAD AND STOKES BAY Southern Water 169 -16 1,618 187
29 Camel South West Water 362 9 1,484 -2,356
30 LYMINGTON AND SOWLEY_M, NEWTOWN_M, PENNINGTON, YARMOUTH Southern Water 180 -29 1,369 -108
31 CENTRAL SOLENT, COWES, LEPE MIDDLE BANK, MEDINA, STANSWOOD BAY Southern Water 200 -41 1,350 117
32 CHICHESTER HARBOUR (CHICHESTER, CHICHESTER HARBOUR (THORNHAM C Southern Water 89 75 1,348 1,293
33 WALNEY EAST United Utilities 521 -37 1,330 -1,068
34 Burry Inlet (North) Dwr Cymru Welsh Water 207 207 1,272 1,272
35 Walney and Roose Beck United Utilities 381 19 1,265 -1,175
36 North Wirral East United Utilities 380 -415 1,216 -1,198
37 Avon South West Water 259 22 1,178 -177
38 CHICHESTER HARBOUR (CHICHESTER, CHICHESTER HARBOUR (EMSWORTH C, CHICHESTER HARBOUR (THORNHAM C Southern Water 76 15 1,165 476
39 CENTRAL SOLENT, COWES, MEDINA, SPITHEAD AND STOKES BAY, STANSWOOD BAY Southern Water 120 26 1,055 388
40 Lynher South West Water 198 -54 1,050 -499
41 Dee United Utilities 52 21 1,011 499
42 APPROACHES TO SOUTHAMPTONWATER, SOUTHAMPTON WATER Southern Water 116 23 991 349
43 Morcambe Bay (Leven) United Utilities 96 -19 948 -187
44 Lune (Wyre) United Utilities 265 -35 838 -771
45 CHICHESTER HARBOUR (EMSWORTH C, LANGSTONE HARBOUR, PORTSMOUTH HARBOUR, SPITHEAD AND STOKES BAY Southern Water 114 0 820 130
46 North Wirral United Utilities 333 -74 798 -690
47 Meols, Morton United Utilities 149 -94 779 -995
48 CHICHESTER HARBOUR (EMSWORTH C, LANGSTONE HARBOUR, PORTSMOUTH HARBOUR Southern Water 94 8 726 -93
49 CENTRAL SOLENT, COWES, RYDE, SPITHEAD AND STOKES BAY Southern Water 51 -5 711 122
50 Burry Inlet (South) Dwr Cymru Welsh Water 88 88 667 667
51 POOLE HARBOUR BRANDS BAY / POOLE HARBOUR NORTH / ROCKLEY / SW BROWNSEA ISLAND / WAREHAM CHANNEL / WHITLEY LAKE / WYCH LAKE / NORTH HAVEN PONTOON / LYCHETT BAY / SOUTH DEEP / WEST BROWNSEA RELAY AREA Wessex Water 150 -6 644 -46
52 SWALE EAST, SWALECLIFFE Southern Water 145 -47 643 -441
53 LYMINGTON AND SOWLEY_M, PENNINGTON, TOTLAND, YARMOUTH Southern Water 41 -51 631 -382
54 CENTRAL SOLENT, COWES, MEDINA, SPITHEAD AND STOKES BAY, STANSWOOD BAY, TOTLAND Southern Water 119 -19 576 20
55 NEWTOWN_M Southern Water 37 -14 531 -326
56 Brixham South West Water 69 12 501 322
57 BEAULIEU RIVER, LEPE MIDDLE BANK, LYMINGTON & SOWLEY Southern Water 38 16 445 238
58 Lune (Wyre Estuary) and Lune (Broadfleet and Plover Scar) United Utilities 54 -64 396 -633
59 Morecambe Bay East United Utilities 166 -141 395 -1,076
60 LYMINGTON AND SOWLEY_M, PENNINGTON Southern Water 61 -32 394 6
61 Lune (Wyre Estuary) Lune (Broadfleet) United Utilities 84 1 357 -297
62 Red Wharf Dwr Cymru Welsh Water 63 -136 343 -1,610
63 COWES, MEDINA, RYDE Southern Water 80 -8 311 -90
64 St.Austell Bay South West Water 70 8 300 -127
65 RAVENGLASS United Utilities 33 -22 293 -312
66 CHICHESTER HARBOUR (CHICHESTER, CHICHESTER HARBOUR (EMSWORTH C, CHICHESTER HARBOUR (THORNHAM C, LANGSTONE HARBOUR Southern Water 23 -5 275 -26
67 COWES, MEDINA, RYDE, SPITHEAD AND STOKES BAY Southern Water 45 9 269 169
68 COWES, LEPE MIDDLE BANK, LYMINGTON AND SOWLEY_M, NEWTOWN_M Southern Water 27 -1 254 94
69 PENNINGTON, YARMOUTH Southern Water 72 11 249 55
70 Lune (Wyre Estuary) United Utilities 36 -22 231 -292
71 PORTSMOUTH HARBOUR, SPITHEAD AND STOKES BAY Southern Water 129 10 227 -24
72 SHEPPEY, SOUTHEND Southern Water 46 -33 217 -367
73 West Wash Anglian Water 110 -68 212 -173
74 Yealm South West Water 83 -42 203 -299
75 CENTRAL SOLENT, COWES, PORTSMOUTH HARBOUR, RYDE, SPITHEAD AND STOKES BAY Southern Water 47 -11 187 -5
76 COWES, LEPE MIDDLE BANK, LYMINGTON AND SOWLEY_M, MEDINA, NEWTOWN_M Southern Water 21 -4 178 -4
77 BEAULIEU RIVER, LYMINGTON AND SOWLEY_M, LEPE MIDDLE BANK Southern Water 15 0 176 -88
78 APPROACHES TO SOUTHAMPTONWATER, CENTRAL SOLENT, COWES, SOUTHAMPTON WATER, STANSWOOD BAY Southern Water 29 -17 164 -182
79 Morecambe Bay Leven United Utilities 37 -50 162 -654
80 LYMINGTON AND SOWLEY_M, PENNINGTON, YARMOUTH Southern Water 21 -17 154 -277
81 South East Wash Anglian Water 54 -29 139 -289
82 NEWTOWN_M, YARMOUTH Southern Water 32 10 137 62
83 MARGATE, SWALECLIFFE Southern Water 23 -29 136 -362
84 SWALE CENTRAL, SWALE EAST Southern Water 107 42 134 -48
85 LANGSTONE HARBOUR, PORTSMOUTH HARBOUR, RYDE, SPITHEAD AND STOKES BAY Southern Water 42 7 133 -17
86 Helford South West Water 74 -6 124 -22
87 APPROACHES TO SOUTHAMPTONWATER, CENTRAL SOLENT, SOUTHAMPTON WATER, STANSWOOD BAY Southern Water 16 -14 120 -93
88 PENNINGTON Southern Water 20 -36 119 -768
89 SWALE CENTRAL Southern Water 57 -41 116 -274
90 PORTLAND NORTH EASTERN BREAKWATER Wessex Water 121 -18 111 -15
91 MEDINA Southern Water 58 -31 99 -11
92 COWES, RYDE Southern Water 42 -52 88 -205
93 Start Bay South West Water 16 -42 86 -808
94 Duddon United Utilities 11 -37 73 -486
95 Swans E Dwr Cymru Welsh Water 6 -415 71 -3,732
96 LANGSTONE HARBOUR, PORTSMOUTH HARBOUR Southern Water 18 2 71 41
97 NORTH WIRRAL (WEST) United Utilities 54 -38 70 -345
98 SWALE CENTRAL, SWALE EAST, SWALECLIFFE Southern Water 30 -5 68 -68
99 Lune (Broadfleet and Plover Scar) and Morecambe Bay East United Utilities 25 -11 67 -113
100 Foulness Anglian Water 31 -26 63 -181
101 Osea Island Anglian Water 10 -62 56 -1,123
102 Colne Anglian Water 95 -12 55 -133
103 RYDE, SPITHEAD AND STOKES BAY Southern Water 9 -10 53 0
104 RYDE, SPITHEAD AND STOKES BAY,COWES Southern Water 15 -1 49 -24
105 Deben Anglian Water 63 -14 49 -351
106 ROOSEBECK_E United Utilities 34 -97 48 -443
107 PENNINGTON, YARMOUTH, TOTLAND Southern Water 13 -10 44 -38
108 LYMINGTON AND SOWLEY_M, NEWTOWN_M, YARMOUTH Southern Water 8 -7 43 -35
109 LUNE (WYRE ESTUARY) United Utilities 39 -27 42 -70
110 SWALE EAST, SWALECLIFFE, MARGATE Southern Water 11 -19 42 -39
111 FOULNESS, OUTER THAMES, SHEPPEY, SOUTHEND Southern Water 22 -21 37 -105
112 Colne, Pyfleet Anglian Water 46 -24 34 -213
113 CHICHESTER HARBOUR (EMSWORTH C, CHICHESTER HARBOUR (THORNHAM C, LANGSTONE HARBOUR Southern Water 6 4 33 21
114 OUTER THAMES, SHEPPEY, SOUTHEND Southern Water 5 -11 32 -85
115 APPROACHES TO SOUTHAMPTONWATER, SOUTHAMPTON WATER, STANSWOOD BAY Southern Water 20 -4 31 -16
116 Morcambe Bay East United Utilities 21 -28 30 -336
117 Lune (Plover Scar) United Utilities 31 -33 30 -331
118 OUTER THAMES, SHEPPEY, SWALE EAST, SWALECLIFFE Southern Water 6 -21 30 -161
119 Tollesbury Channel Anglian Water 7 -48 23 -983
120 Porthcawl Dwr Cymru Welsh Water 11 -69 22 -1,027
121 LYMINGTON AND SOWLEY_M, NEWTOWN_M, PENNINGTON, TOTLAND, YARMOUTH Southern Water 15 -1 21 -8
122 Upper Roach Anglian Water 6 -11 19 -6
123 APPROACHES TO SOUTHAMPTONWATER, CENTRAL SOLENT, PORTSMOUTH HARBOUR, SPITHEAD AND STOKES BAY Southern Water 3 3 16 16
124 STOUR ESTUARY (KENT) Southern Water 7 -24 14 -61
125 Walton Backwaters Anglian Water 7 -12 11 -79
126 Menai E Dwr Cymru Welsh Water 3 -1,315 11 -12,962
127 MARGATE Southern Water 13 -23 11 -52
128 OUTER THAMES, SHEPPEY, SWALE CENTRAL, SWALECLIFFE Southern Water 3 -6 9 -29
129 CHICHESTER HARBOUR (EMSWORTH C, LANGSTONE HARBOUR Southern Water 2 2 6 6
130 Lune (Broadfleet and Plover Scar) United Utilities 3 0 5 -6
131 LANGSTONE HARBOUR Southern Water 4 1 4 3
132 Burnham Overy Creek Anglian Water 7 -98 4 -1,549
133 CENTRAL SOLENT, PORTSMOUTH HARBOUR, RYDE, SPITHEAD AND STOKES BAY Southern Water 2 1 4 1
134 OUTER THAMES, SHEPPEY Southern Water 2 -4 2 -1
135 SHEPPEY, SWALE CENTRAL, SWALE EAST, SWALECLIFFE Southern Water 3 -6 2 -25
136 Solway and Silloth United Utilities 2 -3 2 -3
137 PENNINGTON, TOTLAND, YARMOUTH Southern Water 2 -3 2 -12
138 Morecambe Bay East, Lune (Wyre Estuary) and Lune (Broadfleet and Plover Scar) United Utilities 11 -6 1 0
139 LANGSTONE HARBOUR, SPITHEAD AND STOKES BAY Southern Water 1 -1 0 -1
140 DEE (EAST) United Utilities 2 -11 0 -43
141 LUNE (BROADFLEET) United Utilities 2 -8 0 -43
142 North Wirrall (East) and North Wirrall (West) United Utilities 1 0 0 0
143 Dee (East) and North Wirrall (West) United Utilities 0 0 0 0
144 APPROACHES TO SOUTHAMPTONWATER, CENTRAL SOLENT, COWES, SPITHEAD AND STOKES BAY Southern Water 0 0 0 0
145 Osea Island/Blackwater Anglian Water 0 -4 0 0
146 COWES, LYMINGTON AND SOWLEY_M, NEWTOWN_M Southern Water 0 0 0 0
147 APPROACHES TO SOUTHAMPTONWATER Southern Water 0 0 0 0
148 SHEPPEY, SWALE EAST, SWALECLIFFE Southern Water 0 -3 0 -19

Data Sources & Accuracy

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.

This project is not associated, approved or endorsed by any of the companies whose logos you see here.

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