There were at least 513,234 "sewage spills" into rivers in 2024, lasting an almost unbelievable 4,150,989 hours

An image showing the river network in England and Wales, highlighting those polluted with sewage

Rivers Ranked for 2024

Here are all the rivers in England and Wales that had sewage overflows in 2024. As the list is grouped by company, some rivers may feature more than once, being polluted by different companies along their length.

As there are different rivers with the same name in different parts of the country, it didn't seem sensible to group by river name alone.

The category of "river" is made by the water companies in their "Consent to Discharge with Conditions" - so although there are a number of Seas in this list, that's what they are reporting

Rank River Company Sewage Dumps Change Duration (Hours) Change
1 River Avon Wessex Water 5,221 502 39,065 6,487
2 Unknown South West Water 2,813 -538 30,218 1,939
3 River Trent Severn Trent Water 3,186 247 26,083 4,306
4 River Ouse Yorkshire Water 2,499 -275 25,550 -1,836
5 River Teifi Dwr Cymru Welsh Water 2,232 -347 22,288 -6,083
6 River Severn Severn Trent Water 2,809 -248 21,458 -8,778
7 River Tamar South West Water 2,001 2 21,237 865
8 River Aire Yorkshire Water 3,997 -891 21,191 -8,266
9 River Calder Yorkshire Water 3,373 -804 19,525 -13,207
10 River Great Ouse Anglian Water 1,329 802 17,602 12,965
11 River Welland Anglian Water 1,176 696 17,275 11,877
12 River Avon Severn Trent Water 1,680 550 16,455 6,268
13 River Nene Anglian Water 2,031 885 16,309 9,266
14 River Tawe Dwr Cymru Welsh Water 2,173 -419 16,144 -6,632
15 River Frome Wessex Water 2,048 265 16,043 4,223
16 River Derwent Severn Trent Water 2,675 -57 15,729 -847
17 River Wharfe Yorkshire Water 1,944 -512 14,799 -8,320
18 River Usk Dwr Cymru Welsh Water 1,761 -103 14,743 -695
19 River Wye Dwr Cymru Welsh Water 2,014 -10 14,640 787
20 River Rother Southern Water 1,141 -96 14,178 -1,552
21 Freshwater River Southern Water 1,986 29 13,841 124
22 River Mersey Estuary United Utilities 1,865 153 12,535 -757
23 River Nidd Yorkshire Water 1,104 22 12,527 81
24 River Tyne Saline Estuary Northumbrian Water 1,394 -91 12,156 -1,196
25 River Taff Dwr Cymru Welsh Water 1,449 -45 12,132 -963
26 River Inny South West Water 694 -76 12,124 77
27 River Don Yorkshire Water 1,829 -402 11,996 -6,316
28 River Irwell United Utilities 2,523 -934 11,946 -8,958
29 River Taf Dwr Cymru Welsh Water 793 -61 11,815 -1,778
30 River Llynfi Dwr Cymru Welsh Water 1,286 -58 11,738 828
31 River Bourne Wessex Water 649 226 11,201 5,608
32 River Eden United Utilities 1,646 -375 11,193 -5,452
33 River Teign South West Water 1,025 -136 11,091 -331
34 River Rhymney Dwr Cymru Welsh Water 1,948 148 11,006 -1,403
35 River Torridge South West Water 1,143 -263 10,903 -4,706
36 River Tame United Utilities 1,947 -1,233 10,511 -14,972
37 Solent Southern Water 1,261 -289 10,371 -6,571
38 Wear Northumbrian Water 1,290 -385 10,244 -2,298
39 River Stour Wessex Water 943 50 10,099 465
40 River Chew Wessex Water 824 101 10,002 646
41 Wray Brook South West Water 564 76 9,916 2,954
42 Severn Estuary Dwr Cymru Welsh Water 864 -190 9,805 -1,143
43 River Marlais Dwr Cymru Welsh Water 637 105 9,730 1,694
44 River Dee Dwr Cymru Welsh Water 1,889 291 9,711 1,443
45 River Test Southern Water 556 59 9,627 1,122
46 River Derwent United Utilities 1,066 100 9,606 798
47 River Yeo Wessex Water 813 -3 9,602 -339
48 River Gwili Dwr Cymru Welsh Water 1,077 225 9,441 2,542
49 River Otter South West Water 1,031 155 9,393 2,924
50 River Exe South West Water 649 112 9,377 3,015
51 River Dulais Dwr Cymru Welsh Water 645 7 9,119 -449
52 River Cherwell Thames Water 667 243 9,097 3,566
53 River Cynon Dwr Cymru Welsh Water 1,530 -19 8,870 -1,429
54 River Llyfni Dwr Cymru Welsh Water 795 4 8,821 1,067
55 Salcombe Regis Stream South West Water 366 143 8,772 3,945
56 River Ure Yorkshire Water 1,029 15 8,724 -57
57 River Lwyd Dwr Cymru Welsh Water 1,489 -14 8,663 510
58 River Tees Northumbrian Water 1,128 138 8,585 1,079
59 River Soar Severn Trent Water 1,188 38 8,462 1,184
60 River Erewash Severn Trent Water 1,114 -593 8,429 -5,231
61 River Wear Northumbrian Water 1,421 -434 8,298 -3,981
62 River Sence Severn Trent Water 993 -58 8,263 -575
63 River Ely Dwr Cymru Welsh Water 963 128 8,259 793
64 River Yeo South West Water 807 188 8,138 907
65 River Derwent Yorkshire Water 761 -44 7,990 1,999
66 River Seiont Dwr Cymru Welsh Water 876 -136 7,859 -1,038
67 River Ellen United Utilities 746 -92 7,707 -2,563
68 River Humber Yorkshire Water 838 12 7,688 1,101
69 Misbourne Thames Water 354 233 7,681 5,366
70 River Calder United Utilities 1,059 -273 7,624 -4,387
71 River Dene Severn Trent Water 572 184 7,526 5,296
72 River Blackwater Southern Water 417 51 7,474 639
73 Gwendraeth Fawr Dwr Cymru Welsh Water 1,029 -112 7,376 -2,481
74 River Thames Thames Water 1,077 -17 7,309 1,113
75 River Rother Yorkshire Water 1,376 -275 7,302 -3,367
76 River Itchen Severn Trent Water 439 158 7,062 4,357
77 River Mersey United Utilities 1,368 -414 6,994 -1,432
78 Mounton Brook Dwr Cymru Welsh Water 344 53 6,939 885
79 River Eea United Utilities 371 90 6,858 386
80 R Nene Anglian Water 380 335 6,671 6,212
81 River Loughor Dwr Cymru Welsh Water 683 126 6,567 227
82 Unknown Wessex Water 849 33 6,565 -1,327
83 Unnamed Ditch Dwr Cymru Welsh Water 408 62 6,501 1,548
84 Hexden Channel Southern Water 426 14 6,487 293
85 River Culm South West Water 631 -24 6,454 -848
86 River Bollin United Utilities 1,040 -208 6,434 -2,019
87 River Leam Severn Trent Water 514 176 6,402 2,881
88 River Stour Severn Trent Water 978 125 6,393 192
89 River Medway Southern Water 967 137 6,355 1,101
90 River Arrow Severn Trent Water 549 150 6,267 2,899
91 River Swale Yorkshire Water 826 -190 6,245 -1,349
92 Weaver South West Water 283 25 6,198 985
93 River Ise Anglian Water 627 199 6,184 2,350
94 River Till Wessex Water 295 -4 6,153 -805
95 River Weaver United Utilities 823 50 6,151 -33
96 Hanwell Brook Thames Water 422 144 6,148 2,950
97 River Fal South West Water 546 83 6,087 2,103
98 River Tywi Dwr Cymru Welsh Water 569 112 6,062 1,487
99 River Lydden Wessex Water 411 42 6,061 686
100 River Mole South West Water 574 -133 6,008 -433
101 Western Cleddau Dwr Cymru Welsh Water 550 -91 5,653 -1,193
102 River Meavy South West Water 430 53 5,639 109
103 River Rhondda Fach Dwr Cymru Welsh Water 1,023 -146 5,599 -2,132
104 River Piddle Wessex Water 259 68 5,591 1,350
105 River Kym Anglian Water 418 183 5,566 2,744
106 River Clydach Dwr Cymru Welsh Water 656 239 5,521 3,680
107 Whilton Branch R Nene Anglian Water 247 110 5,499 3,362
108 River Lune United Utilities 724 -183 5,486 -2,464
109 River Amber Severn Trent Water 590 -115 5,442 -2,434
110 River Clyst South West Water 368 -81 5,401 -1,323
111 Brampton Branch River Nene Anglian Water 320 91 5,380 2,079
112 River Bride Wessex Water 318 19 5,376 -165
113 Payhembury Stream South West Water 279 105 5,372 3,664
114 River Amman Dwr Cymru Welsh Water 970 -39 5,369 -1,057
115 Unnamed River Till Northumbrian Water 261 261 5,365 5,365
116 Mill Brook Thames Water 261 99 5,353 2,785
117 River Adur Southern Water 479 43 5,325 11
118 Quinny Brook Severn Trent Water 299 122 5,325 1,473
119 Burry Pill Dwr Cymru Welsh Water 253 39 5,302 1,993
120 River Ebbw Dwr Cymru Welsh Water 609 -38 5,289 876
121 Thornton Beck Yorkshire Water 423 -4 5,272 887
122 River Tone Wessex Water 482 -35 5,261 -150
123 River Dearne Yorkshire Water 921 -300 5,248 -3,501
124 River Walkham South West Water 338 40 5,236 623
125 River Goyt United Utilities 761 -268 5,194 -2,362
126 Cobshaw Dyke Yorkshire Water 282 23 5,127 -57
127 Winterbournestream Thames Water 219 160 5,062 3,775
128 River Tove Anglian Water 459 110 5,051 1,301
129 River Cam Wessex Water 399 34 5,026 185
130 Ogwr Fawr Dwr Cymru Welsh Water 588 -85 5,017 -1,279
131 River Anghof Dwr Cymru Welsh Water 342 -38 5,013 -1,168
132 River Avon Via Sws Wessex Water 1,969 247 5,005 972
133 River Rhyd Hir Dwr Cymru Welsh Water 385 -139 4,994 -1,317
134 River Beult Southern Water 387 -35 4,993 -561
135 Kennet Thames Water 336 48 4,981 1,390
136 Tidal River Ouse Southern Water 280 31 4,979 124
137 Ogwr Fach Dwr Cymru Welsh Water 353 -65 4,936 -1,214
138 River Brue Wessex Water 376 -2 4,870 -214
139 River Mease Severn Trent Water 331 -52 4,850 328
140 Tockington Mill Rhine Wessex Water 283 42 4,831 779
141 River Etherow United Utilities 793 -227 4,822 -3,185
142 River Erch Dwr Cymru Welsh Water 264 -281 4,788 -4,037
143 River Ewenni Dwr Cymru Welsh Water 211 13 4,778 479
144 River Blyth Northumbrian Water 563 -2 4,749 -104
145 Borsdane Brook United Utilities 381 -63 4,724 -811
146 Bristol Avon Wessex Water 294 53 4,718 745
147 Luckington Brook Wessex Water 238 26 4,704 449
148 River Teme Severn Trent Water 574 45 4,684 -66
149 River Ouse Southern Water 512 4 4,670 -529
150 River Fowey South West Water 299 79 4,620 1,439
151 River Llugwy Dwr Cymru Welsh Water 288 -106 4,616 -2,369
152 River Marden Wessex Water 367 17 4,576 345
153 Counterdrain River Nene T Anglian Water 312 76 4,550 1,593
154 River Seaton South West Water 403 -29 4,548 -1,136
155 Forton Brook South West Water 274 126 4,531 2,812
156 Gleaston Beck United Utilities 191 18 4,517 450
157 River Balder Northumbrian Water 273 -10 4,513 562
158 River Bray South West Water 205 27 4,512 573
159 Hardwick Brook Thames Water 217 55 4,482 1,316
160 River Allen South West Water 415 -99 4,476 -469
161 Black Dike Yorkshire Water 286 91 4,472 1,584
162 Shorncote Ditch Thames Water 236 71 4,459 1,588
163 River Arun Southern Water 349 -74 4,455 -2,087
164 River Thaw Dwr Cymru Welsh Water 290 -34 4,448 -142
165 Lowthorpe Beck Yorkshire Water 257 145 4,447 2,315
166 Milton Stream South West Water 231 -63 4,445 -731
167 River Wreake Severn Trent Water 460 92 4,436 1,749
168 Boddington Canal Feeder Thames Water 235 76 4,433 1,600
169 River Sirhowy Dwr Cymru Welsh Water 1,021 51 4,429 949
170 Nant Brisgyll Dwr Cymru Welsh Water 475 9 4,427 -1,030
171 River Ogwen Dwr Cymru Welsh Water 452 -123 4,413 -1,845
172 River Isle Wessex Water 396 10 4,406 66
173 River Kent United Utilities 359 -133 4,389 -2,260
174 River Ise River Nene Anglian Water 203 161 4,380 3,656
175 River Ant Anglian Water 208 89 4,362 2,436
176 River Roch United Utilities 810 -96 4,352 -743
177 River Camnant Dwr Cymru Welsh Water 286 141 4,347 2,810
178 River Taw South West Water 309 -6 4,346 1,633
179 River Coln Thames Water 202 40 4,332 941
180 River Dart South West Water 561 51 4,309 104
181 River Nadder Wessex Water 249 102 4,309 2,371
182 Burghmoor Beck United Utilities 310 93 4,280 1,123
183 River Twymyn Dwr Cymru Welsh Water 190 -64 4,270 -979
184 River Anker Severn Trent Water 617 54 4,258 1,036
185 River Holme Yorkshire Water 571 -155 4,212 -1,847
186 River Cresswell Dwr Cymru Welsh Water 211 -26 4,198 -224
187 Beckamoor Brook South West Water 200 30 4,175 573
188 Cut-Off Channel Anglian Water 192 177 4,144 3,909
189 Scotsgrove Brook Thames Water 233 69 4,134 1,401
190 River Iwerne Wessex Water 197 73 4,133 1,860
191 Shovelstrode Stream Southern Water 193 90 4,130 2,090
192 Aller Brook South West Water 413 -44 4,111 13
193 River Garw Dwr Cymru Welsh Water 409 -202 4,107 -5,716
194 River Cary Wessex Water 258 108 4,096 1,697
195 Lidsey Rife Southern Water 226 62 4,059 574
196 Tyne Northumbrian Water 814 -227 4,044 -1,295
197 River Lew South West Water 406 21 4,028 693
198 River Rhee Anglian Water 321 -2 4,025 141
199 River Axe South West Water 589 -74 4,015 -504
200 River Cleddau Dwr Cymru Welsh Water 189 36 3,997 836
201 River East Allen Northumbrian Water 203 80 3,987 1,544
202 River Cuckmere Southern Water 280 34 3,976 909
203 Loughor Estuary Dwr Cymru Welsh Water 359 -79 3,971 -1,165
204 Windrush Thames Water 180 49 3,967 1,198
205 Coquet Northumbrian Water 332 116 3,966 1,106
206 West Glen Anglian Water 193 116 3,965 2,921
207 River Alyn Dwr Cymru Welsh Water 783 137 3,961 1,200
208 Bidwell Brook South West Water 351 -100 3,961 -1,280
209 Danes Brook Thames Water 226 69 3,948 1,342
210 River Itchen Southern Water 351 114 3,927 1,530
211 River Boyd Wessex Water 283 36 3,924 566
212 River Tavy South West Water 674 25 3,921 -585
213 Penpont Water South West Water 206 61 3,917 1,019
214 Sydling Water Wessex Water 190 19 3,887 197
215 River Worfe Severn Trent Water 284 133 3,868 2,587
216 Holly Water South West Water 188 188 3,864 3,864
217 Deep Meadows Beck United Utilities 216 -19 3,863 -74
218 White Dike Yorkshire Water 186 77 3,862 1,965
219 River Wye Severn Trent Water 357 -109 3,852 -2,655
220 River Witham Anglian Water 304 25 3,802 180
221 River Bran Dwr Cymru Welsh Water 350 -78 3,755 -578
222 River Axe Wessex Water 264 -13 3,736 -63
223 Ridgewood Stream Southern Water 202 42 3,727 735
224 River Tame Severn Trent Water 1,054 259 3,722 1,049
225 Severn Estuary Wessex Water 256 -10 3,713 -90
226 River Lledr Dwr Cymru Welsh Water 219 -29 3,711 -869
227 River Kennal South West Water 171 77 3,687 1,611
228 Bevern Stream Southern Water 285 18 3,677 -166
229 Cam Brook Wessex Water 569 26 3,676 35
230 River Ithon Dwr Cymru Welsh Water 443 -94 3,661 -1,905
231 Cottered Brook Thames Water 190 76 3,648 1,426
232 River Brede Southern Water 323 -8 3,624 -1,016
233 Harbeton Stream South West Water 233 -94 3,603 -1,056
234 River Glaze United Utilities 351 -16 3,589 751
235 Pauper¿S Drain Severn Trent Water 216 110 3,582 2,688
236 Chapel Beck United Utilities 219 -58 3,579 -1,068
237 Lavister Brook Dwr Cymru Welsh Water 245 73 3,579 1,465
238 River Medina Southern Water 473 -54 3,573 -1,036
239 Leigham Mill Stream South West Water 224 124 3,568 2,279
240 Unnamed Of Harley Dyke Yorkshire Water 191 -7 3,552 -236
241 Carlton Beck Severn Trent Water 216 -11 3,546 -154
242 Gainsbridge Brook Thames Water 168 100 3,544 2,286
243 Woodbury Brook South West Water 279 -2 3,544 120
244 River Thame Thames Water 189 139 3,529 3,058
245 Harbourne River South West Water 166 6 3,517 209
246 Cholwell Brook South West Water 169 49 3,505 1,273
247 Stream Dyke Yorkshire Water 193 36 3,493 582
248 Gallos Brook Thames Water 209 146 3,489 2,424
249 Congresbury Yeo Wessex Water 213 -25 3,486 -648
250 River Tyne Northumbrian Water 989 -185 3,483 -773
251 Glynch Brook Severn Trent Water 179 69 3,459 1,695
252 River Ribble United Utilities 641 -289 3,435 -4,137
253 River Lugg Dwr Cymru Welsh Water 406 135 3,430 1,232
254 Ramsey High Lode Anglian Water 236 92 3,430 1,378
255 River Mole Thames Water 254 -28 3,426 -370
256 River Waver United Utilities 260 48 3,418 1,158
257 Manchester Ship Canal United Utilities 986 -472 3,414 -5,703
258 Halfacre Brook Thames Water 172 22 3,402 246
259 Coal Burn Northumbrian Water 227 6 3,401 816
260 River Tweed Northumbrian Water 654 65 3,397 618
261 Tidal Ouse Yorkshire Water 283 93 3,393 1,017
262 River Ver Thames Water 187 183 3,383 3,373
263 River Clwyd Dwr Cymru Welsh Water 306 -78 3,377 -628
264 Irfon River Dwr Cymru Welsh Water 192 163 3,360 2,757
265 River Colne Anglian Water 413 -18 3,359 -419
266 River Gwendraeth Fach Dwr Cymru Welsh Water 172 44 3,356 701
267 River Douglas United Utilities 635 -150 3,354 -677
268 Holy Brook South West Water 276 13 3,339 32
269 River Leven Northumbrian Water 436 3 3,334 607
270 Derril Water South West Water 171 -31 3,332 -308
271 River Yarrow United Utilities 588 -105 3,317 -742
272 River Goedol Dwr Cymru Welsh Water 254 -79 3,314 -1,080
273 River Blythe Severn Trent Water 263 -147 3,301 -2,926
274 Unnamed Drain To River Humber Anglian Water 170 156 3,290 2,978
275 Hillfarrance Brook Wessex Water 343 -57 3,288 -634
276 Keysoe Brook. River Kym Anglian Water 165 66 3,275 1,475
277 River Greta United Utilities 329 -41 3,272 -889
278 Holbeck Yorkshire Water 226 -88 3,266 -267
279 Ouzel Brook Anglian Water 164 38 3,259 1,099
280 River Cynin Dwr Cymru Welsh Water 292 -17 3,245 -962
281 Blackbrook River South West Water 251 -2 3,244 -1,999
282 Calverton Brook Anglian Water 171 68 3,244 1,253
283 River Meon Southern Water 207 -4 3,240 -477
284 River Nevern Dwr Cymru Welsh Water 245 -36 3,238 -839
285 Caundle Brook Wessex Water 213 -81 3,237 -843
286 Gauze Brook Wessex Water 188 -7 3,229 -302
287 Hebble Brook Yorkshire Water 412 -103 3,227 79
288 River Lavant Southern Water 146 127 3,206 3,030
289 River Rhydyfallen Dwr Cymru Welsh Water 194 76 3,204 1,001
290 Pottery Stream Thames Water 162 29 3,198 1,102
291 Dubwath Beck United Utilities 202 -102 3,198 -1,234
292 Wheatley Ditch Thames Water 160 36 3,188 1,111
293 River Marlias Dwr Cymru Welsh Water 227 190 3,186 2,671
294 Bow Brook Severn Trent Water 260 38 3,184 1,337
295 Quy Water Bottisham Lode Anglian Water 167 134 3,182 2,988
296 Nant Cledlyn Dwr Cymru Welsh Water 222 -131 3,181 -1,830
297 Kingston Brook Severn Trent Water 231 -27 3,172 -609
298 Cosheston Pill Dwr Cymru Welsh Water 255 -66 3,163 -694
299 Abberd Brook Wessex Water 154 21 3,160 460
300 Nant Verwig Dwr Cymru Welsh Water 147 56 3,143 1,204
301 River Conwy Dwr Cymru Welsh Water 575 -86 3,130 594
302 Semington Brook Wessex Water 294 124 3,129 1,928
303 Radford Pill Dwr Cymru Welsh Water 231 169 3,125 2,921
304 Medbourne Brook River Welland Anglian Water 238 73 3,109 1,453
305 Ampney Brook Thames Water 147 17 3,103 343
306 River Rhondda Dwr Cymru Welsh Water 696 18 3,089 -390
307 Pulham River South West Water 175 -2 3,077 -362
308 River Sheppey Wessex Water 309 70 3,074 681
309 River Lynher South West Water 272 -16 3,072 -205
310 Ewenny Fach Dwr Cymru Welsh Water 205 14 3,068 885
311 Scour Gutter Yorkshire Water 252 0 3,056 399
312 River Afan Dwr Cymru Welsh Water 662 -10 3,054 -1,459
313 Little Dart River South West Water 305 -61 3,041 -682
314 River Goch Dwr Cymru Welsh Water 379 -135 3,037 -2,295
315 Diddington Brook Anglian Water 162 42 3,032 978
316 Tyne Estuary Northumbrian Water 1,139 -180 3,029 -319
317 Cherwell Thames Water 260 100 3,017 1,283
318 River Erme South West Water 215 47 3,014 183
319 Shill Brook Thames Water 217 21 3,014 153
320 Dee Estuary Dwr Cymru Welsh Water 394 13 3,010 1,094
321 Evenlode Thames Water 218 -80 3,008 -1,657
322 Gaunless Northumbrian Water 349 -34 3,002 105
323 Ebbw Fawr Dwr Cymru Welsh Water 508 47 3,000 336
324 Shutford Stream Thames Water 190 152 2,977 2,705
325 River Doe Lea Yorkshire Water 397 -120 2,961 -2,732
326 River Wylye Wessex Water 142 -18 2,959 473
327 West Cleddua Dwr Cymru Welsh Water 153 25 2,950 726
328 Slade Brook Anglian Water 329 153 2,949 1,849
329 River Hull Yorkshire Water 252 51 2,944 1,486
330 Back Stream Wessex Water 220 101 2,942 1,561
331 Walgrave Brook Anglian Water 148 46 2,936 1,201
332 Knowle Water South West Water 160 -26 2,934 -553
333 River Bovey South West Water 177 -28 2,928 173
334 Dart Estuary South West Water 297 34 2,925 -888
335 River Morgenau Dwr Cymru Welsh Water 244 97 2,895 584
336 Nant Clydach Dwr Cymru Welsh Water 597 -45 2,892 -756
337 Loxwood Stream Southern Water 178 -31 2,892 -1,092
338 River Garnant Dwr Cymru Welsh Water 266 27 2,892 -107
339 River Colne Yorkshire Water 1,151 -262 2,890 -2,709
340 River Derwent Northumbrian Water 466 -104 2,886 -901
341 Lymington River Southern Water 248 9 2,883 113
342 By Brook Wessex Water 362 14 2,881 -533
343 River Crouch Anglian Water 315 68 2,873 1,360
344 River Wyre United Utilities 353 -8 2,866 -241
345 River Sannan Dwr Cymru Welsh Water 222 -11 2,862 -500
346 Warpsgrave Ditch Thames Water 147 15 2,854 652
347 Church Beck United Utilities 166 -12 2,848 -540
348 River Evenlode Thames Water 178 145 2,831 2,602
349 River Lash Dwr Cymru Welsh Water 205 -16 2,831 -460
350 Ebbw River Dwr Cymru Welsh Water 463 78 2,828 1,060
351 Rea Brook Severn Trent Water 515 52 2,825 -897
352 Nant Logyn Dwr Cymru Welsh Water 194 109 2,803 1,200
353 River Gaunless Northumbrian Water 227 -77 2,801 -933
354 Curbridge Ditch Thames Water 141 22 2,800 593
355 Oxon Ray Thames Water 188 35 2,798 1,165
356 Ramsley Brook Severn Trent Water 208 51 2,779 1,924
357 Roughton Beck United Utilities 160 -16 2,778 -336
358 River Lumburn South West Water 139 1 2,776 4
359 River Lyner South West Water 271 76 2,774 1,369
360 Bow Brook Thames Water 231 48 2,752 775
361 Wellow Brook Wessex Water 569 -8 2,750 -403
362 Bolingey Stream South West Water 187 -6 2,749 0
363 Estuarial Waters Of Swansea Ba Dwr Cymru Welsh Water 225 -3 2,743 -286
364 Car Dyke Severn Trent Water 239 -42 2,731 73
365 Black Brook United Utilities 608 -275 2,727 -3,506
366 Mells River Wessex Water 286 -35 2,726 -294
367 River Cothi Dwr Cymru Welsh Water 148 -32 2,722 -605
368 River Dart Estuary South West Water 346 -54 2,722 -687
369 River Cole Thames Water 135 32 2,715 609
370 River Dulas Dwr Cymru Welsh Water 272 -57 2,693 -719
371 River Kennall South West Water 172 19 2,693 281
372 River Teifi Estuary Dwr Cymru Welsh Water 277 -37 2,685 -623
373 River Chess Thames Water 141 136 2,681 2,662
374 River Went Yorkshire Water 207 -62 2,674 -1,611
375 Penryn River South West Water 585 9 2,664 -372
376 River Don Northumbrian Water 446 -131 2,663 -1,186
377 Langham Lake South West Water 236 -18 2,661 -236
378 Littlestock Brook Thames Water 152 26 2,657 515
379 Coles Stream South West Water 222 -35 2,649 -672
380 Bedale Beck Yorkshire Water 321 19 2,647 -256
381 South Winterbourne Wessex Water 223 51 2,641 765
382 Black Beck United Utilities 212 11 2,640 174
383 Barton Brook United Utilities 170 -18 2,640 -500
384 Halwell Stream South West Water 273 -49 2,628 -624
385 Marcham Brook Thames Water 160 39 2,622 888
386 River Hamble Southern Water 248 97 2,597 931
387 Bottle Brook Severn Trent Water 449 36 2,597 504
388 River Keekle United Utilities 344 -10 2,593 -33
389 Hicks Mill Stream South West Water 151 -56 2,588 -467
390 Cradley Brook Severn Trent Water 224 59 2,588 866
391 River Thrushel South West Water 292 -123 2,583 -1,181
392 Nettleham Beck Anglian Water 135 19 2,578 430
393 River Marlas Dwr Cymru Welsh Water 198 -111 2,571 -2,783
394 River Wey Thames Water 217 21 2,564 162
395 Pont Northumbrian Water 295 -66 2,559 -732
396 River Grannell Dwr Cymru Welsh Water 223 -53 2,555 129
397 River Neath Dwr Cymru Welsh Water 638 -89 2,547 -1,416
398 Claydon Brook Anglian Water 150 61 2,545 977
399 River Avon South West Water 317 -73 2,545 -761
400 Windermoor Main Drain United Utilities 188 3 2,541 433
401 Nant Medini Dwr Cymru Welsh Water 266 6 2,539 -714
402 Little Mere River South West Water 191 -56 2,539 -391
403 Tirle Brook Severn Trent Water 250 59 2,537 1,200
404 Groundwater/River Dun Southern Water 156 120 2,536 2,192
405 Fovant Brook Wessex Water 193 54 2,532 825
406 River Croal United Utilities 550 -166 2,530 -1,244
407 Silverbridge Lake South West Water 156 6 2,529 434
408 River Cale Wessex Water 241 38 2,529 189
409 Winestead Drain Yorkshire Water 202 25 2,529 548
410 Aber Bach Dwr Cymru Welsh Water 131 22 2,528 537
411 Aldingbourne Rife Southern Water 128 51 2,527 1,084
412 Neath Estuary Dwr Cymru Welsh Water 231 -26 2,526 -677
413 St Neot River South West Water 245 -27 2,521 459
414 Kingston Stream South West Water 119 -22 2,520 -314
415 Tang Hall Beck Yorkshire Water 268 -27 2,510 -135
416 Wye River Dwr Cymru Welsh Water 241 241 2,484 2,484
417 Thames Thames Water 264 105 2,484 1,289
418 River Colne Thames Water 129 14 2,476 384
419 Black Brook River South West Water 170 -10 2,475 -191
420 River Yar Southern Water 211 -61 2,467 -705
421 Coombe Stream South West Water 152 27 2,465 316
422 Unknown Langton Brook Anglian Water 143 129 2,459 2,212
423 Kislingbury Branch River Nene Anglian Water 137 89 2,455 1,648
424 River Cadnant Dwr Cymru Welsh Water 208 -107 2,447 -2,221
425 River Ryburn Yorkshire Water 358 -220 2,444 -2,895
426 Eastern Yar Southern Water 204 -40 2,435 -863
427 Smithy Brook Yorkshire Water 248 -3 2,428 -227
428 River Churnet Severn Trent Water 534 7 2,425 347
429 River Wensum Anglian Water 487 89 2,410 1,321
430 River Crane Wessex Water 180 18 2,406 -180
431 Walney Channel United Utilities 452 -37 2,394 -911
432 Smallhope Burn Northumbrian Water 398 -102 2,387 -1,022
433 Culverted, River Tawe Dwr Cymru Welsh Water 184 -1 2,377 -143
434 Unknown Anglian Water 412 336 2,374 2,088
435 River Humber Anglian Water 434 -32 2,373 55
436 Mylor Creek South West Water 175 -56 2,369 -522
437 Rhondda Fawr Dwr Cymru Welsh Water 585 -77 2,368 -585
438 River Cam Severn Trent Water 240 107 2,368 1,186
439 Oakhanger Stream Thames Water 123 -24 2,368 -178
440 Leach Thames Water 128 83 2,365 1,677
441 Wellahms Brook Wessex Water 150 22 2,360 523
442 Costa Beck Yorkshire Water 244 -148 2,358 -1,400
443 River Irk United Utilities 829 -297 2,355 -798
444 Mersey Estuary United Utilities 585 -220 2,352 -602
445 Mully Brook South West Water 315 106 2,352 1,238
446 Usk River Dwr Cymru Welsh Water 166 79 2,349 1,212
447 River Wenning United Utilities 355 53 2,348 376
448 Weston Mill Lake South West Water 209 10 2,347 196
449 Great Stour Southern Water 261 22 2,327 166
450 Marston Brook Anglian Water 153 49 2,326 761
451 Abbotsbury Brook Wessex Water 129 31 2,325 310
452 Tremar Stream South West Water 125 8 2,323 136
453 Black Brook Yorkshire Water 288 -50 2,318 -307
454 River Wissey Anglian Water 206 131 2,318 2,015
455 Malpas Brook Dwr Cymru Welsh Water 307 -15 2,311 -246
456 River Mersey Estuary/River Birket United Utilities 219 69 2,306 355
457 River Tove River Great Ouse N Anglian Water 119 53 2,304 1,196
458 Avon Water Southern Water 132 33 2,303 633
459 River Waveney Anglian Water 391 176 2,297 1,254
460 Unknown United Utilities 635 -542 2,295 -5,943
461 River Poulter Severn Trent Water 249 32 2,295 -317
462 Mires Brook Severn Trent Water 250 13 2,294 -323
463 Tyelaw Burn Northumbrian Water 179 30 2,293 439
464 Bashall Brook United Utilities 166 -46 2,287 -1,336
465 Bagpuize Brook Thames Water 143 118 2,286 2,151
466 Brookhouse Brook Thames Water 183 -3 2,286 107
467 Stanbridge Stream Southern Water 116 -11 2,284 -110
468 Belford Burn Northumbrian Water 218 37 2,282 474
469 Kingsclere Brook Thames Water 119 -15 2,271 -291
470 River Cwm-Waun-Gron Dwr Cymru Welsh Water 104 -59 2,270 -1,095
471 Ebbw Estuary Dwr Cymru Welsh Water 251 105 2,267 1,055
472 Rhondda River Fawr Dwr Cymru Welsh Water 229 43 2,262 -37
473 River Brit Wessex Water 301 -3 2,262 -185
474 Unnamed Stream Dwr Cymru Welsh Water 418 -335 2,261 -2,226
475 Ginge Brook Thames Water 128 12 2,255 404
476 Hazelbeach Stream Dwr Cymru Welsh Water 318 49 2,254 -375
477 Sirhowy River Dwr Cymru Welsh Water 570 -70 2,251 -151
478 Unknown Loughor Estuary Dwr Cymru Welsh Water 118 5 2,250 120
479 Bledington Brook Thames Water 114 49 2,248 1,291
480 River Lyd Severn Trent Water 211 -23 2,245 -100
481 River Twrch Dwr Cymru Welsh Water 194 32 2,241 194
482 River Roden Severn Trent Water 263 58 2,239 1,134
483 Dean Brook United Utilities 220 -37 2,236 -479
484 Llandow Brook Dwr Cymru Welsh Water 117 8 2,224 128
485 River Clun Dwr Cymru Welsh Water 234 -40 2,223 -511
486 River Llwyd Dwr Cymru Welsh Water 169 14 2,222 -109
487 River North Petteril United Utilities 139 -7 2,221 -292
488 Mole Thames Water 162 33 2,218 448
489 Hulcote Brook River Tove Anglian Water 118 38 2,215 581
490 Menai Strait Dwr Cymru Welsh Water 357 -37 2,209 -853
491 River Dudwell Southern Water 134 8 2,206 179
492 Coombe Valley Stream South West Water 131 -10 2,204 -463
493 Docker Beck United Utilities 142 79 2,197 1,133
494 Birdwell Dyke Yorkshire Water 165 16 2,191 56
495 Harome Moor Drain Yorkshire Water 142 -7 2,190 -179
496 River Crake United Utilities 200 -24 2,184 -759
497 River Esk Yorkshire Water 466 -89 2,183 -252
498 Chichester Harbour Southern Water 155 -137 2,182 -2,581
499 Monks Ditch Dwr Cymru Welsh Water 155 15 2,177 623
500 River Artro Dwr Cymru Welsh Water 150 -36 2,176 68
501 Milton Creek Southern Water 164 54 2,168 1,575
502 Fosse Way Brook Severn Trent Water 111 -16 2,163 169
503 Harcourt Brook Thames Water 123 32 2,157 800
504 River Arth Dwr Cymru Welsh Water 291 9 2,154 -95
505 River Foss Yorkshire Water 315 -7 2,153 57
506 Sedgemoor Old Rhyne Wessex Water 130 23 2,145 723
507 Salteye Brook United Utilities 282 1 2,143 145
508 River Dulyn Dwr Cymru Welsh Water 148 -22 2,142 -763
509 River Grom Southern Water 234 -5 2,139 -172
510 Caul Bourne Southern Water 165 -7 2,138 -586
511 Common Brook Severn Trent Water 123 76 2,134 1,938
512 Clawdd Brook Dwr Cymru Welsh Water 134 48 2,130 676
513 Tuckmill Brook Thames Water 125 44 2,129 800
514 R Severn Severn Trent Water 96 -110 2,128 -1,740
515 Congresbury Yeo, Lake Wessex Water 108 -5 2,127 -105
516 River Burn Yorkshire Water 229 86 2,124 921
517 River Dove Severn Trent Water 262 -51 2,123 432
518 River Sowe Severn Trent Water 142 47 2,122 742
519 Tidal River Arun Southern Water 188 90 2,118 795
520 Un R Brant Anglian Water 118 42 2,117 679
521 Ray Brook Southern Water 124 0 2,110 24
522 River Gipping Anglian Water 234 30 2,110 -664
523 Dolmead Rhyne Wessex Water 123 60 2,108 905
524 River Lostock United Utilities 447 -11 2,101 -48
525 Stour Wessex Water 149 -23 2,100 -539
526 River Dean United Utilities 422 -141 2,097 -767
527 Angle Bay Dwr Cymru Welsh Water 146 -1 2,094 -579
528 River Dulias Dwr Cymru Welsh Water 145 46 2,094 1,014
529 Coombe Bottom Brook, R Ouzel Anglian Water 131 121 2,081 1,877
530 Blockley Brook Severn Trent Water 121 -61 2,072 -1,469
531 Cheddar Yeo Wessex Water 149 19 2,072 395
532 River Tove River Gre Anglian Water 152 51 2,071 618
533 Gotham Brook Severn Trent Water 88 -12 2,065 228
534 River Bure - Tidal Anglian Water 116 11 2,065 47
535 Barton Brook Anglian Water 152 102 2,064 1,266
536 River Lemon South West Water 168 28 2,058 511
537 River Nent Northumbrian Water 259 -14 2,045 -209
538 River Stowe Severn Trent Water 202 50 2,044 1,083
539 Un-Named Watercourse Dwr Cymru Welsh Water 301 -137 2,033 -528
540 Unnamed Watercourse Dwr Cymru Welsh Water 340 100 2,031 1,499
541 Nant Cledyn Dwr Cymru Welsh Water 146 146 2,029 2,029
542 Hanborough Stream Thames Water 158 38 2,026 547
543 River Leven United Utilities 190 69 2,024 850
544 River Thet Anglian Water 130 31 2,015 759
545 Kyln Clough, R Lostock United Utilities 160 -12 2,010 -822
546 Tyne Saline Estuary Northumbrian Water 465 -125 2,006 -764
547 Hawkridge Brook South West Water 146 -14 2,004 -548
548 Cranleigh Waters Thames Water 160 74 2,002 1,407
549 Wye Estuary Dwr Cymru Welsh Water 195 46 1,998 719
550 Glynde Reach Southern Water 189 12 1,997 -311
551 Nant Y Cefn Dwr Cymru Welsh Water 100 100 1,991 1,991
552 Duddon Estuary United Utilities 215 27 1,991 -150
553 Small Brook Wessex Water 160 4 1,989 61
554 Raddon Stream/Ground South West Water 147 45 1,988 867
555 Bullclose Beck United Utilities 129 -101 1,987 -2,573
556 Tyddyn Drain To Coastal Waters Dwr Cymru Welsh Water 169 -6 1,983 -588
557 River Bourne Thames Water 112 27 1,979 617
558 River Devon Severn Trent Water 231 -20 1,977 -57
559 Unnamed Culverted Watercourse Anglian Water 104 -21 1,977 -660
560 Dockerell Brook River Great Ou Anglian Water 101 0 1,974 92
561 Tarra Carr Gutter United Utilities 149 3 1,973 -90
562 Cunlease Rhyne Wessex Water 116 -3 1,972 -299
563 River Towy Dwr Cymru Welsh Water 548 -168 1,963 -2,223
564 River Lliw Dwr Cymru Welsh Water 365 -146 1,961 -784
565 Aberdraw Stream Dwr Cymru Welsh Water 181 19 1,955 -103
566 Chinnock Brook Wessex Water 165 -7 1,946 5
567 River Kensey South West Water 237 -3 1,945 0
568 River Brain Anglian Water 403 242 1,944 344
569 Nevern Dwr Cymru Welsh Water 102 15 1,943 351
570 Crouds Lake Wessex Water 104 25 1,934 336
571 Nidon Rhyne Wessex Water 99 10 1,933 32
572 Seaton Channel Northumbrian Water 136 -17 1,931 -401
573 Kingsbury Brook Severn Trent Water 116 -1 1,930 -84
574 Deerness Northumbrian Water 212 -17 1,927 -174
575 Everden Brook River Nene Anglian Water 183 94 1,925 1,296
576 Lustrum Beck Northumbrian Water 354 -191 1,921 -1,253
577 Bartley Water Southern Water 180 -9 1,917 200
578 Guc Thames Water 124 72 1,916 1,265
579 Bourne Thames Water 104 37 1,913 771
580 River Lerryn South West Water 101 101 1,913 1,913
581 River Keer United Utilities 168 -85 1,910 -2,187
582 Warslow Brook Severn Trent Water 162 -8 1,908 -387
583 Ure Yorkshire Water 130 -13 1,907 -243
584 River Cledan Dwr Cymru Welsh Water 117 9 1,905 22
585 Wyke Beck And River Aire Yorkshire Water 257 46 1,903 -1,324
586 Mawddach Dwr Cymru Welsh Water 119 1 1,898 -131
587 Digmer Brook Severn Trent Water 103 38 1,894 606
588 Hatfield Heath Watercourse Thames Water 97 -23 1,892 -397
589 River Eden Southern Water 183 5 1,884 -217
590 River Gwenlais Dwr Cymru Welsh Water 294 -18 1,879 -255
591 River Wampool United Utilities 245 -162 1,878 -2,830
592 Nant Glaswg Dwr Cymru Welsh Water 110 -6 1,878 -52
593 Don Northumbrian Water 420 -144 1,874 -798
594 Old River Bain Anglian Water 132 -14 1,869 -631
595 Burton Brook Severn Trent Water 284 -167 1,868 -3,097
596 Shreen Water Wessex Water 251 50 1,865 895
597 Mill Avon Severn Trent Water 169 22 1,860 -125
598 River Wid Anglian Water 208 27 1,857 349
599 Unknown River Nene Anglian Water 162 154 1,857 1,808
600 Black Pool Brook Severn Trent Water 156 9 1,856 82
601 River Tyweli Dwr Cymru Welsh Water 93 -84 1,856 -2,082
602 Stanney Mill Brook United Utilities 167 45 1,853 652
603 Bull Brook Wessex Water 108 23 1,851 176
604 Brailsford Brook Severn Trent Water 178 123 1,849 1,631
605 River Severn Estuary Severn Trent Water 196 196 1,847 1,847
606 Watery Lane Drain Anglian Water 89 3 1,837 186
607 River Dane United Utilities 447 -200 1,833 -1,980
608 River Teise Southern Water 256 53 1,828 -179
609 Full Brook Severn Trent Water 248 -63 1,827 -174
610 Whilton Branch River Nene Anglian Water 117 46 1,827 1,064
611 Cadnant Dwr Cymru Welsh Water 180 14 1,824 -79
612 Hetton Beck Yorkshire Water 110 -53 1,819 -386
613 Unnamed Watercourse To River Goch Dwr Cymru Welsh Water 128 -115 1,819 -1,022
614 Nant Collen Dwr Cymru Welsh Water 150 20 1,812 -124
615 Blyth Saline Estuary Northumbrian Water 117 -41 1,809 -951
616 Willow Brook Anglian Water 127 12 1,809 707
617 Cramfit Brook Severn Trent Water 217 76 1,800 411
618 Langton Brook Anglian Water 208 -1 1,797 535
619 River Irfon Dwr Cymru Welsh Water 224 -268 1,796 -4,117
620 Broadhempston Stream South West Water 105 18 1,791 30
621 River Chater Anglian Water 135 83 1,790 1,512
622 River Frome Severn Trent Water 143 52 1,790 996
623 Erch Dwr Cymru Welsh Water 176 176 1,787 1,787
624 Team Northumbrian Water 413 -110 1,784 -950
625 Blea Beck United Utilities 114 -64 1,783 -1,878
626 River Ken South West Water 99 -27 1,782 -571
627 Little Addington Brook Anglian Water 117 76 1,779 1,446
628 Grand Union Canal Thames Water 157 124 1,775 1,548
629 River Calder And Hebble Brook Yorkshire Water 276 -61 1,774 -1,572
630 Colam Stream South West Water 87 7 1,773 115
631 River Aln Northumbrian Water 300 -31 1,770 -846
632 Howbery Ditch Thames Water 101 89 1,770 1,606
633 Nant-Y-Ci, The Ogwr Fawr Dwr Cymru Welsh Water 153 -34 1,769 -1,150
634 Bury Brook Anglian Water 106 2 1,768 106
635 Ladden Brook Wessex Water 91 -13 1,767 -312
636 River Wen Dwr Cymru Welsh Water 117 -98 1,767 -1,508
637 Grace Dieu Brook Severn Trent Water 175 33 1,765 660
638 Cockhaise Brook Southern Water 102 -7 1,763 434
639 Burstow Stream Thames Water 133 7 1,758 387
640 River Hart Thames Water 120 83 1,758 996
641 Pulworthy Brook South West Water 124 87 1,747 1,141
642 River Gwyrfai Dwr Cymru Welsh Water 265 -93 1,742 -1,274
643 Winford Brook Wessex Water 107 46 1,741 1,162
644 Bradshaw Brook United Utilities 338 -183 1,736 -3,930
645 Weighton Beck Yorkshire Water 121 18 1,735 1,115
646 River Llan Dwr Cymru Welsh Water 463 -23 1,730 -1,117
647 Doniford Stream Wessex Water 167 -26 1,729 -430
648 River Lathkill Severn Trent Water 124 -6 1,727 -241
649 Kemerton Brook Severn Trent Water 118 26 1,724 985
650 Hertford Yorkshire Water 133 11 1,721 -90
651 Lox Yeo Wessex Water 114 -1 1,721 -74
652 Swanspool Brook Anglian Water 232 168 1,710 1,476
653 Bearley Brook Wessex Water 226 28 1,708 315
654 Gwyrfai Dwr Cymru Welsh Water 221 42 1,707 596
655 Spratford Stream South West Water 162 -55 1,699 -1,017
656 River Taf, Via Surface Water Sewer Dwr Cymru Welsh Water 100 -14 1,695 -402
657 North Sea Northumbrian Water 360 -15 1,690 6
658 Silchester Brook Thames Water 99 -15 1,690 -380
659 Moorhouse Beck Severn Trent Water 102 -60 1,689 -1,027
660 Old River Slea Anglian Water 135 37 1,686 271
661 Haw Beck Yorkshire Water 127 4 1,681 -286
662 River Darwen United Utilities 608 -159 1,679 -439
663 Flood Relief Channel Anglian Water 122 52 1,677 520
664 River Sow Severn Trent Water 137 78 1,673 857
665 River Itchen Estuary Southern Water 170 -31 1,672 -366
666 River Plym South West Water 283 3 1,669 181
667 Wignall Brook Anglian Water 77 63 1,666 1,371
668 River Crafnant Dwr Cymru Welsh Water 98 -34 1,665 -502
669 Cartlet Brook Dwr Cymru Welsh Water 105 -113 1,661 -1,059
670 Crummock Beck United Utilities 208 -23 1,658 -1,730
671 Tidal River Tamar South West Water 134 -16 1,657 -431
672 River Parrett Wessex Water 338 43 1,657 284
673 River Frome Dwr Cymru Welsh Water 292 15 1,656 -159
674 Dulas Dwr Cymru Welsh Water 85 -72 1,656 -891
675 Skeffling Clough Drain Yorkshire Water 99 -48 1,647 -820
676 Mobberley Brook United Utilities 171 -25 1,645 200
677 Clay Hill Brook Thames Water 96 -36 1,639 -1,222
678 River Ivel Anglian Water 156 57 1,636 857
679 River Denys Dwr Cymru Welsh Water 93 -16 1,636 -414
680 Somerhill Stream Southern Water 188 24 1,635 228
681 River Duad Dwr Cymru Welsh Water 99 -72 1,635 -1,263
682 River Chelmer Anglian Water 179 -49 1,633 -524
683 River Skerne Northumbrian Water 380 -89 1,633 -493
684 Holmwood Stm Leigh Brk Thames Water 107 -11 1,630 -367
685 M/C Ship Canal United Utilities 145 -29 1,629 -204
686 River Camel/St Lawrence Str South West Water 92 29 1,625 390
687 Bishop Monkton Beck Yorkshire Water 184 72 1,623 125
688 Rookhope Burn Northumbrian Water 153 -14 1,623 -410
689 Galmpton Stream South West Water 104 64 1,622 1,001
690 West Newton Beck United Utilities 100 -11 1,621 298
691 Cunsey Beck United Utilities 86 -18 1,617 -411
692 Lambwath Stream Yorkshire Water 169 149 1,616 1,575
693 Moor Drain Yorkshire Water 126 -5 1,615 173
694 Southampton Water Southern Water 142 -51 1,615 -868
695 River Pang Thames Water 107 24 1,615 319
696 Holbeck/Wharfe South West Water 113 113 1,613 1,613
697 Horsenden Stream Thames Water 95 81 1,611 1,492
698 Langley Beck Northumbrian Water 174 -22 1,611 -80
699 Corry Brook South West Water 97 21 1,610 533
700 Near Stock Beck United Utilities 137 14 1,608 352
701 Lashlake Stream Thames Water 105 67 1,608 1,169
702 Westwood Brook Severn Trent Water 156 -10 1,608 -289
703 Wreningham Stream River Tas N Anglian Water 82 10 1,607 1,101
704 Downmeadow Brook Severn Trent Water 203 -84 1,603 -1,645
705 River Dyfi Dwr Cymru Welsh Water 141 -15 1,599 -94
706 River Swift Severn Trent Water 176 -122 1,596 -1,630
707 Coopers Brook Thames Water 124 51 1,594 394
708 River South Tyne Northumbrian Water 325 26 1,593 237
709 River Isbourne Severn Trent Water 294 169 1,585 1,180
710 Bradwell Brook Severn Trent Water 184 70 1,583 -188
711 Deepford Brook Dwr Cymru Welsh Water 95 -21 1,582 -433
712 Madresfield Brook Severn Trent Water 114 9 1,574 550
713 Of Woolleigh Brook South West Water 327 327 1,573 1,573
714 Aldbrough Beck Northumbrian Water 87 15 1,572 398
715 Dubbs Gutter United Utilities 139 -12 1,571 -241
716 River Cammarch Dwr Cymru Welsh Water 138 -73 1,569 -1,556
717 Ellhirst Beck Yorkshire Water 177 43 1,564 -682
718 River Cedron Dwr Cymru Welsh Water 137 -4 1,562 304
719 River Kird Southern Water 123 -17 1,562 -678
720 Park Brook Wessex Water 84 7 1,561 -20
721 River Coly South West Water 188 36 1,559 742
722 Rowsham Brook Thames Water 113 -43 1,559 -544
723 River Dove Anglian Water 151 52 1,557 774
724 Lowley Brook South West Water 102 26 1,555 358
725 Grendon Brook Anglian Water 165 -13 1,549 41
726 River Elai Dwr Cymru Welsh Water 120 1 1,548 75
727 Pagham Rife Southern Water 101 -28 1,535 -853
728 Crane Brook Southern Water 155 50 1,532 276
729 Mells Stream Wessex Water 160 19 1,532 374
730 River Noe Severn Trent Water 175 -60 1,529 -1,389
731 Knock Brook Dwr Cymru Welsh Water 145 8 1,528 152
732 River Brant Anglian Water 87 -30 1,527 -736
733 River Alham Wessex Water 181 2 1,527 -57
734 River Stiffkey Anglian Water 94 51 1,526 1,084
735 Feltham Brook Wessex Water 145 13 1,525 268
736 Northfield Drain Yorkshire Water 93 63 1,523 1,260
737 Monk Haven Stream Dwr Cymru Welsh Water 100 81 1,518 1,159
738 River Okement South West Water 238 53 1,518 449
739 Dogsmouth Brook Anglian Water 118 33 1,517 844
740 Wootton Brook Anglian Water 88 83 1,513 1,493
741 Boden Brook Severn Trent Water 96 48 1,510 721
742 Soutergate Beck United Utilities 117 -10 1,510 -526
743 River Tamar Estuary South West Water 163 23 1,509 216
744 Chiddingfold Stream Southern Water 91 63 1,507 1,308
745 River Pol South West Water 99 -17 1,504 -341
746 River Brett Anglian Water 202 -36 1,502 -303
747 U River Towy Dwr Cymru Welsh Water 97 10 1,502 442
748 Alfreton Brook Severn Trent Water 254 -145 1,501 -2,368
749 River Wye Estuary Dwr Cymru Welsh Water 303 -50 1,500 -511
750 Eridge Stream Southern Water 163 8 1,497 -181
751 Stanney Brook Dwr Cymru Welsh Water 174 10 1,497 205
752 Tide Brook Southern Water 113 16 1,496 -53
753 Wyre Estuary United Utilities 130 -27 1,495 -718
754 Llansaint Stream Dwr Cymru Welsh Water 97 -2 1,495 84
755 Grendon Brook River Nene Anglian Water 98 7 1,494 84
756 Tarleton Runner United Utilities 158 6 1,490 340
757 Goddens Gill Southern Water 114 5 1,487 -429
758 Ketlam Drain River Nar Anglian Water 68 40 1,486 974
759 Fleet Brook Thames Water 103 17 1,484 264
760 Liverton Brook South West Water 98 -12 1,482 -458
761 River Axe Estuary South West Water 119 8 1,481 259
762 River Ouzel Anglian Water 180 133 1,479 1,033
763 Leonards Cove Stream South West Water 96 2 1,474 -5
764 Denholme Beck Yorkshire Water 184 -93 1,473 -1,328
765 Shortbridge Stream Southern Water 109 36 1,473 457
766 Sankey Brook United Utilities 311 -93 1,469 -465
767 Moor Ditch Thames Water 94 33 1,468 743
768 Exe Estuary South West Water 180 6 1,466 324
769 River Browney Northumbrian Water 327 -84 1,465 -433
770 Crawlwy Brook River Ouzel Anglian Water 85 13 1,459 532
771 Long Eau Anglian Water 108 -30 1,458 -361
772 River Loddon Thames Water 128 94 1,457 1,153
773 River Uck Southern Water 97 -2 1,456 -226
774 Kelwell Drain Yorkshire Water 139 6 1,455 422
775 Marsh Drain United Utilities 93 -32 1,455 -18
776 Wem Brook Severn Trent Water 168 39 1,455 518
777 Hilden Brook Southern Water 121 -37 1,443 -297
778 River Salwarpe Severn Trent Water 180 59 1,442 777
779 Farthingstone Brook River Nene Anglian Water 86 27 1,439 742
780 Causey Burn Northumbrian Water 174 -52 1,438 -596
781 Cannington Brook Wessex Water 162 13 1,433 -8
782 Main Goit Yorkshire Water 112 10 1,430 136
783 Worm Brook Dwr Cymru Welsh Water 87 23 1,424 407
784 Tadnoll Brook Wessex Water 104 -17 1,423 -184
785 River Bain Anglian Water 87 20 1,423 274
786 Browney Northumbrian Water 216 -71 1,419 192
787 Ludgershall Brook Thames Water 99 1 1,416 21
788 Bourne Brook Severn Trent Water 179 -117 1,412 -2,443
789 Hall Lee Brook United Utilities 173 -41 1,410 -439
790 Scaldwell Brook Anglian Water 79 37 1,410 975
791 River Lethi Dwr Cymru Welsh Water 98 -17 1,410 -510
792 Glast Mill Stream Wessex Water 92 -2 1,409 142
793 River Marron United Utilities 169 54 1,406 489
794 River Hiraethlyn Dwr Cymru Welsh Water 88 -6 1,406 -144
795 Crimple Beck Yorkshire Water 199 -38 1,406 -461
796 Right Bank Of River Twrch Dwr Cymru Welsh Water 123 -8 1,404 -303
797 Sor Brook Thames Water 126 88 1,402 1,202
798 River Gwash Anglian Water 151 115 1,398 1,309
799 Spring Brook Severn Trent Water 90 45 1,398 749
800 Eagley Brook United Utilities 301 -342 1,395 -2,585
801 Haye Valley Stream South West Water 153 -1 1,395 55
802 Carew River Dwr Cymru Welsh Water 59 -175 1,391 -2,768
803 River Dove Yorkshire Water 323 -48 1,390 -475
804 River Humber Severn Trent Water 111 -55 1,387 647
805 Nunney Brook Wessex Water 108 -31 1,385 -526
806 Driffield Canal Yorkshire Water 86 29 1,385 618
807 River Cwm Wuan Gron Dwr Cymru Welsh Water 96 96 1,385 1,385
808 Abbey River South West Water 114 5 1,379 -208
809 Long Sutton Catchwater Wessex Water 62 -39 1,376 -897
810 Seend Hill Stream Wessex Water 82 9 1,372 47
811 Whissendine Brook Severn Trent Water 118 -45 1,370 -379
812 Pittington Beck Northumbrian Water 92 -25 1,369 -140
813 Bentley Brook Anglian Water 69 22 1,369 846
814 Tang Beck Yorkshire Water 95 -12 1,368 -437
815 Wyke Beck Yorkshire Water 602 32 1,367 -113
816 Mill Beck Yorkshire Water 140 3 1,360 528
817 Stroom Dyke Severn Trent Water 109 5 1,359 461
818 Gilt Brook Severn Trent Water 169 -35 1,358 -420
819 Pincey Brook Thames Water 102 21 1,358 150
820 Catraw Burn Northumbrian Water 81 1 1,358 -147
821 Chess Brook Southern Water 111 24 1,357 331
822 River Creedy South West Water 321 -24 1,357 -188
823 Birkin Brook United Utilities 178 -49 1,356 -840
824 River Rea Severn Trent Water 697 0 1,354 -81
825 Crowton Brook United Utilities 163 -2 1,352 176
826 Paxtondean Burn Northumbrian Water 78 4 1,347 3
827 Bedford Ouse Anglian Water 66 50 1,343 1,127
828 Hampshire Avon River Wessex Water 81 -28 1,339 -771
829 Morecambe Bay Esturiane Waters United Utilities 88 -13 1,338 -374
830 Ditton Brook United Utilities 159 -96 1,336 -819
831 Pow Burn Northumbrian Water 104 -1 1,336 -592
832 Hey Brook United Utilities 246 -53 1,335 -103
833 Porset Brook Dwr Cymru Welsh Water 139 -44 1,334 -1,223
834 Long Brook Via Sws South West Water 115 4 1,333 667
835 Foudry Brook Thames Water 110 -64 1,327 -2,266
836 Ormsby Beck Northumbrian Water 187 -13 1,326 91
837 Marske Beck Yorkshire Water 136 -28 1,326 -764
838 Bow Street Brook Dwr Cymru Welsh Water 94 15 1,325 31
839 Old Bedford River Anglian Water 94 -4 1,323 -6
840 Est'L Waters Milford Haven Dwr Cymru Welsh Water 126 26 1,322 -160
841 River Loveny South West Water 81 15 1,317 97
842 Lymore Stream Southern Water 84 -31 1,315 -254
843 Nether Beck, River Keer United Utilities 92 9 1,314 86
844 Wootton Creek Southern Water 236 -25 1,313 -302
845 Washford River Wessex Water 121 5 1,312 527
846 River Chwefru Dwr Cymru Welsh Water 149 15 1,312 -106
847 Chadlingtonstream Thames Water 84 84 1,311 1,311
848 River Gwaun Dwr Cymru Welsh Water 97 0 1,311 -353
849 Adur Estuary Southern Water 81 72 1,308 1,213
850 River Tillingham Southern Water 216 30 1,308 -60
851 Hooton Brook Yorkshire Water 153 -125 1,306 -914
852 Marshcourt River Southern Water 100 78 1,303 1,146
853 River Stour Anglian Water 125 -26 1,302 518
854 Stevington Brook Anglian Water 75 61 1,299 987
855 Morlais Brook Dwr Cymru Welsh Water 311 3 1,298 -17
856 Stowlangtoft Stream River Sapi Anglian Water 67 -12 1,297 189
857 Green Bank Drn,New S. Eau Rive Anglian Water 68 9 1,297 119
858 River Quin Thames Water 70 26 1,296 669
859 River Ottery South West Water 184 -81 1,296 -50
860 New Rhyne Wessex Water 69 23 1,292 572
861 Solent/Langstone Harbour Southern Water 94 9 1,292 59
862 St Helens Dike Yorkshire Water 156 103 1,291 781
863 Sulham Brook Thames Water 70 70 1,291 1,291
864 River Kennet Thames Water 82 61 1,289 1,025
865 River Yare Anglian Water 197 43 1,287 447
866 Bulldog Sewer / Glynde Reach Southern Water 104 -1 1,286 -225
867 Duloe Brook Anglian Water 82 65 1,286 1,083
868 Honeybridge Striver R.Adur Southern Water 113 6 1,284 -281
869 Eye Brook River Wellan Anglian Water 98 58 1,283 734
870 Elvington Beck Yorkshire Water 97 10 1,282 197
871 River Usk Estuary Dwr Cymru Welsh Water 303 -61 1,278 -265
872 Whistle Brook, River Ouzel Anglian Water 135 43 1,276 988
873 Sandy Rhine Chestle Pill Wessex Water 86 45 1,275 771
874 Ogmore Estuary Dwr Cymru Welsh Water 100 -21 1,275 -332
875 Middleton Burn Northumbrian Water 102 -26 1,274 -628
876 Summerham Brook Wessex Water 174 77 1,273 559
877 Limb Brook Thames Water 71 -25 1,271 -672
878 Ayleston Brook South West Water 124 -17 1,269 -252
879 Rivers Ember And Mole Thames Water 78 78 1,262 1,262
880 River Kyle Yorkshire Water 307 6 1,261 75
881 Birk Syke United Utilities 184 3 1,258 149
882 Long Preston Beck R Ribbl United Utilities 119 4 1,255 -165
883 Blyth Estuary Northumbrian Water 206 -32 1,255 -337
884 Harmonds Brook West Arm Thames Water 95 -13 1,252 -138
885 Erewash Canal Severn Trent Water 143 1 1,244 -607
886 Falmouth Bay/ Bickland Wat South West Water 77 42 1,243 1,178
887 River Frenze River Waveney Anglian Water 69 -15 1,243 75
888 Dalby Brook Severn Trent Water 103 2 1,239 -32
889 Car Dyke Meth'Gham Delph Rive Anglian Water 93 -21 1,237 -229
890 Stream South West Water 239 -14 1,231 4
891 River Ribble/West Clough Brook United Utilities 125 -18 1,230 -395
892 River Rede Northumbrian Water 88 -37 1,229 -697
893 Market Weighton Beck Yorkshire Water 104 12 1,225 454
894 Conygre Brook Wessex Water 75 6 1,224 79
895 Audley Brook United Utilities 154 19 1,222 315
896 Pasturefields Brook Severn Trent Water 113 18 1,221 307
897 Roundmoor Ditch Thames Water 70 38 1,220 857
898 Valley Brook United Utilities 195 14 1,219 234
899 Cone Brook Severn Trent Water 85 0 1,217 110
900 Gwendraeth Fach Dwr Cymru Welsh Water 123 -10 1,217 111
901 Worminghallbrook Thames Water 93 41 1,215 706
902 River Morda Severn Trent Water 109 -37 1,212 -442
903 River Tyne Estuarine Waters Northumbrian Water 291 -63 1,205 -312
904 Parrett And Hinton Meads Brook Wessex Water 112 -17 1,205 -337
905 Hilton Brook Severn Trent Water 94 3 1,203 105
906 Langton Brook River Welland N Anglian Water 132 -1 1,202 107
907 River Petteril United Utilities 343 -38 1,201 -293
908 Middle Level Catch Drn Anglian Water 67 30 1,201 775
909 River Beane Thames Water 86 13 1,201 241
910 River Tas Anglian Water 97 -14 1,200 -325
911 Broughton Astley Brook Severn Trent Water 155 38 1,198 255
912 Laceby Beck Anglian Water 113 -29 1,198 35
913 Dee Dwr Cymru Welsh Water 254 71 1,198 293
914 Ditch Dwr Cymru Welsh Water 87 -48 1,196 -829
915 River Geirch Dwr Cymru Welsh Water 270 -136 1,195 -1,284
916 Sherford Stream South West Water 96 -166 1,194 -1,937
917 Brook Dike/River Dearne Yorkshire Water 86 11 1,193 87
918 Gwindra Stream South West Water 159 19 1,192 280
919 Lam Brook Stream Wessex Water 81 -2 1,191 110
920 Biddulph Brook United Utilities 261 -3 1,190 209
921 Mag Brook Yorkshire Water 163 -49 1,190 -1,698
922 Lilly Brook South West Water 171 33 1,189 65
923 Pippingford Brook Southern Water 112 -14 1,187 -172
924 Witcombe Bottom Drain Wessex Water 89 17 1,185 204
925 River Sheaf Yorkshire Water 364 -51 1,184 -156
926 Crabley Creek Yorkshire Water 115 -25 1,181 122
927 Bathford Brook Wessex Water 113 -20 1,181 -204
928 River Ding Wessex Water 81 -22 1,177 -429
929 River Tern Severn Trent Water 202 74 1,176 859
930 Astley Brook United Utilities 281 -265 1,172 -773
931 Langford Brook Thames Water 89 23 1,171 331
932 Whitelake Wessex Water 62 2 1,170 -49
933 River Alt United Utilities 159 -98 1,170 -735
934 Pinsley Brook Dwr Cymru Welsh Water 166 23 1,169 231
935 River Cole Severn Trent Water 347 62 1,165 348
936 River Plym Via Sws South West Water 538 -32 1,164 97
937 Longhope Brook Severn Trent Water 97 32 1,159 423
938 Crane Moor Dike Yorkshire Water 100 -5 1,159 -374
939 Clifton Hampden Ditch Thames Water 78 46 1,158 649
940 River Team Northumbrian Water 190 -31 1,157 -132
941 River Gt Ouse Anglian Water 80 80 1,155 1,155
942 Eye Brook Anglian Water 63 54 1,153 993
943 River Alun Dwr Cymru Welsh Water 182 67 1,153 325
944 Barnham Rife Southern Water 124 -13 1,150 -775
945 River Linnet Anglian Water 105 -33 1,149 -467
946 Kidsgrove Stream United Utilities 118 -37 1,147 -42
947 Somerset Frome Wessex Water 82 -20 1,146 -282
948 Pow Beck United Utilities 228 32 1,146 82
949 Biddulph Brook, Rvr Dane United Utilities 108 26 1,145 362
950 Odhay Hill Ditch/River Thames Thames Water 85 47 1,145 792
951 Brighstone Stream Southern Water 75 -21 1,145 -549
952 Bullow Brook South West Water 72 -44 1,143 -644
953 Nant Rhydian-Ddu Dwr Cymru Welsh Water 96 -16 1,141 -441
954 Twenty Foot River Anglian Water 67 -4 1,139 155
955 River Caen South West Water 65 -15 1,137 467
956 Carr Beck Yorkshire Water 361 84 1,134 429
957 Rhondda Fawr River Dwr Cymru Welsh Water 253 -7 1,133 37
958 Ferry Drain Severn Trent Water 83 -22 1,132 -315
959 How Burn Northumbrian Water 73 16 1,130 60
960 Bentley Brook Severn Trent Water 255 127 1,129 495
961 River Ystwyth Dwr Cymru Welsh Water 111 -42 1,126 -266
962 Bardsey Beck Yorkshire Water 80 -46 1,125 -230
963 Waldron Ghyll Southern Water 79 -7 1,124 -280
964 Bridge House Beck Yorkshire Water 118 -48 1,124 -1,627
965 Bloxham Brook Thames Water 71 -23 1,124 -310
966 Nuthurst Stream Southern Water 92 -35 1,123 -838
967 . Anglian Water 214 90 1,121 703
968 Cranbrook Drain River Great Ou Anglian Water 67 22 1,119 556
969 Cresswellshawe Brook Via Sws United Utilities 138 110 1,116 1,107
970 New Stream Ditch Southern Water 150 -43 1,116 -606
971 Kingsbridge Estuary South West Water 182 -16 1,114 371
972 River Nant Cledlyn Dwr Cymru Welsh Water 87 -14 1,110 82
973 Helmdon Brook River Tove Anglian Water 99 64 1,108 816
974 Llynfi River Dwr Cymru Welsh Water 191 100 1,108 595
975 River Tywelli Dwr Cymru Welsh Water 98 50 1,108 791
976 Kennet And Avon Canal Thames Water 67 47 1,106 870
977 River Lud Anglian Water 256 -125 1,105 -377
978 Holgate Beck Yorkshire Water 177 38 1,104 805
979 Glenfield/Braunstone/K/Mux Br Severn Trent Water 93 -14 1,103 -440
980 Foxton Brook River Welland Anglian Water 84 5 1,103 -8
981 Clancutt Brook United Utilities 83 -147 1,101 -1,266
982 Dyer'S Brake Wessex Water 127 -10 1,098 -48
983 Norton Brook Wessex Water 76 10 1,097 265
984 River Leen Severn Trent Water 407 -112 1,096 -751
985 Frampton Town Drain Anglian Water 60 -9 1,093 -111
986 River Honddu Dwr Cymru Welsh Water 85 41 1,092 618
987 Tidal Waters Of Western Cleddau Dwr Cymru Welsh Water 198 -111 1,088 -608
988 Washbourne Brook Severn Trent Water 128 84 1,088 869
989 River Deben Anglian Water 109 28 1,086 651
990 Hurst Haven Southern Water 107 -20 1,086 -172
991 Hog Dyke Anglian Water 138 40 1,085 368
992 Leaton Brook Severn Trent Water 72 22 1,081 195
993 Taf Fechan Dwr Cymru Welsh Water 130 16 1,080 225
994 Whitehall Brook United Utilities 110 -14 1,079 -343
995 Fenwick Burn Northumbrian Water 129 13 1,079 29
996 River Sett United Utilities 98 -77 1,078 -1,185
997 Uffington Brook Thames Water 101 15 1,078 -175
998 Newmill Channel Southern Water 114 -31 1,078 -401
999 Pool Stream United Utilities 119 -37 1,077 -683
1000 Earlswood Brook Thames Water 83 5 1,077 91
1001 River Mawddach Dwr Cymru Welsh Water 111 -10 1,074 -90
1002 Alconbury Brook Anglian Water 124 63 1,074 462
1003 Unnamed Braydon Wessex Water 65 -13 1,073 -261
1004 Byde Mill Brook/River Avon Wessex Water 77 5 1,071 90
1005 Barrow Clough/Pendleton Brook United Utilities 100 -29 1,070 -716
1006 Benfleet Creek Anglian Water 137 30 1,070 300
1007 River Kenn South West Water 86 8 1,069 -347
1008 River Caldew United Utilities 223 -11 1,069 42
1009 Dyffryn Main Drain Dwr Cymru Welsh Water 84 27 1,068 332
1010 Of Combe Lake South West Water 105 -81 1,068 -1,731
1011 Oxon River Ray Thames Water 61 -9 1,067 -135
1012 River Prysor Dwr Cymru Welsh Water 159 -28 1,065 472
1013 Plymouth Sound/Plym Estuary South West Water 127 -14 1,062 -119
1014 Brandon Brook Severn Trent Water 98 24 1,062 53
1015 Unnamed Coastal Stream South West Water 107 -39 1,060 -731
1016 Nightlayers Fen Int Drain Anglian Water 96 12 1,057 83
1017 Stisted Brook River Blackwater Anglian Water 63 14 1,056 260
1018 Broadway Brook Severn Trent Water 66 28 1,055 536
1019 Main Dyke United Utilities 386 -67 1,055 -32
1020 Stretham Catchwater Anglian Water 89 41 1,054 535
1021 Valley Burn Northumbrian Water 157 -34 1,053 -240
1022 Hellifield United Utilities 307 142 1,052 117
1023 Ferryside Stream Dwr Cymru Welsh Water 100 -71 1,052 -777
1024 River Yealm South West Water 136 -22 1,052 -53
1025 River Pilau Dwr Cymru Welsh Water 109 -6 1,050 -69
1026 Pound Street Brook Thames Water 67 -44 1,049 -681
1027 River Esk United Utilities 126 2 1,048 251
1028 Brampton Brook Anglian Water 61 50 1,046 966
1029 Hallgarth Beck United Utilities 114 -6 1,044 -390
1030 Sketchley Brook Severn Trent Water 248 24 1,040 158
1031 Berryfield Stream Wessex Water 95 11 1,039 150
1032 River Wansbeck Northumbrian Water 217 30 1,038 39
1033 River Gannel South West Water 322 41 1,038 307
1034 River Worth Yorkshire Water 363 -37 1,037 -155
1035 Ford Lake Via Stream Southern Water 95 3 1,037 72
1036 Nunn Brook Severn Trent Water 140 -54 1,037 -858
1037 Hibaldstow Catchwater River An Anglian Water 54 2 1,035 35
1038 Congresbury Yeo And Butcombe Wessex Water 62 -105 1,034 -2,154
1039 Bluehouse Gill Northumbrian Water 97 13 1,034 113
1040 Stanley Burn Northumbrian Water 322 -83 1,033 -203
1041 River Myddyfi Dwr Cymru Welsh Water 109 -51 1,032 -1,265
1042 Clackers Brook Wessex Water 81 -2 1,031 58
1043 Unnamed Tidal River Adur Southern Water 75 -8 1,030 -151
1044 River Ecclesbourne Severn Trent Water 96 52 1,025 436
1045 River Ribble Estuary United Utilities 140 -47 1,025 -697
1046 Bradford Beck Yorkshire Water 414 18 1,024 269
1047 River Sapiston Anglian Water 87 -44 1,024 -12
1048 River Dwyryd Dwr Cymru Welsh Water 116 -48 1,024 -460
1049 Tary Of Rattlesden River Anglian Water 49 3 1,022 53
1050 Billinghay Soke Dyke Anglian Water 96 22 1,020 256
1051 River Trym Via Sws Wessex Water 593 -75 1,019 -6
1052 River Ouse Anglian Water 145 82 1,017 574
1053 Padbury Brook Anglian Water 79 -13 1,016 -477
1054 River Biam Severn Trent Water 130 21 1,016 78
1055 Westrop Brook Thames Water 66 6 1,010 135
1056 Cartlett Brook Dwr Cymru Welsh Water 134 134 1,009 1,009
1057 Hamstead Stream Thames Water 86 -7 1,009 -12
1058 Charleton Stream South West Water 73 3 1,003 519
1059 Noleham Brook Severn Trent Water 145 40 1,001 95
1060 Ouse Burn Northumbrian Water 158 -55 1,000 -220
1061 Shabbington Brook Thames Water 67 19 998 423
1062 Cavenham Stream River Lark Anglian Water 54 22 996 485
1063 Tanyard Beck Yorkshire Water 154 5 995 -561
1064 Flagshaw Brook Severn Trent Water 80 30 993 246
1065 Shorwell Stream Southern Water 95 -23 991 -437
1066 Nailsworth Stream Severn Trent Water 177 35 990 428
1067 Enbourn Thames Water 59 9 989 245
1068 Hampshire Avon, River Wessex Water 99 -7 988 -242
1069 Cripsey Brook Thames Water 90 3 987 198
1070 Afan Daulan Dwr Cymru Welsh Water 75 -25 987 -736
1071 Ogwen Dwr Cymru Welsh Water 74 74 987 987
1072 River Hipper Yorkshire Water 315 -32 986 -175
1073 Nafferton Beck Yorkshire Water 134 31 986 165
1074 River Fender United Utilities 253 -51 985 -174
1075 Foundry Drain Dwr Cymru Welsh Water 91 3 985 168
1076 Trusham Stream South West Water 93 -41 983 -917
1077 Bromley Brook Anglian Water 53 53 983 983
1078 Beck Anglian Water 117 2 982 -568
1079 R Welland Anglian Water 72 59 982 781
1080 River Fowey Estuary South West Water 453 43 978 364
1081 Aldford Brook Dwr Cymru Welsh Water 107 8 976 255
1082 Moss Brook United Utilities 112 17 976 296
1083 Mel Brook Leading To R Rhee Anglian Water 119 67 975 630
1084 River Nodwydd Dwr Cymru Welsh Water 103 -56 975 -718
1085 Sth Drain- Lwr Brue Wessex Water 65 -1 974 -196
1086 River Lowman South West Water 122 2 974 18
1087 Goulds Brook Wessex Water 124 -12 972 -127
1088 Whitton Beck Northumbrian Water 98 -44 970 -307
1089 Oak Beck Yorkshire Water 152 -42 967 -370
1090 Fleet Marston Brook Thames Water 63 -12 966 -173
1091 Main Cut Yorkshire Water 77 -9 965 -55
1092 Culvert Of Bwrlais Brook Dwr Cymru Welsh Water 133 -5 965 -11
1093 River Dove And Bulling Dyke Yorkshire Water 126 -25 964 -598
1094 Chilton Brook River Stour Anglian Water 70 -15 961 102
1095 River Barlwyd Dwr Cymru Welsh Water 157 5 961 65
1096 Ridding Sough United Utilities 144 13 959 197
1097 Catchwater Drain Yorkshire Water 78 28 959 207
1098 Drimpton Stream South West Water 124 -43 958 -247
1099 Cowfold Stream River Adur Southern Water 73 1 957 -51
1100 Gwili Dwr Cymru Welsh Water 81 81 957 957
1101 Harpers Brook Anglian Water 90 48 955 600
1102 North Common Drain South West Water 72 -11 954 -265
1103 Kingswood Brook Severn Trent Water 111 18 953 283
1104 River Lea United Utilities 133 73 953 647
1105 River Barle South West Water 213 -51 951 -1,064
1106 New Mill Dike Yorkshire Water 104 -18 950 -555
1107 Fawley Court Stream Thames Water 86 85 950 946
1108 River Hamble Estuary Southern Water 63 -4 949 -243
1109 Little Hulton Stream United Utilities 158 -64 949 -378
1110 Mill Stream Southern Water 74 19 947 239
1111 River Machno Dwr Cymru Welsh Water 71 -14 947 76
1112 Tidal River Solva Dwr Cymru Welsh Water 58 -1 944 -16
1113 Un River Witham Anglian Water 52 -39 943 -922
1114 Nant Myddlyn Dwr Cymru Welsh Water 151 -15 941 -313
1115 River Chelt Severn Trent Water 77 -4 940 45
1116 Malham Beck Yorkshire Water 77 -35 940 -536
1117 Wadley Burn Northumbrian Water 108 -10 939 -302
1118 Low Ham Rhyne Wessex Water 56 -12 938 -176
1119 River Adur East Southern Water 87 -2 937 -173
1120 Charlton Stream Wessex Water 71 1 937 -112
1121 Of Lodgegrove Brook Dwr Cymru Welsh Water 75 18 936 295
1122 Ellington Brook Anglian Water 79 23 936 185
1123 River Ore Anglian Water 126 -20 936 -963
1124 Melin Court Brook Dwr Cymru Welsh Water 85 -19 936 -486
1125 Hammer Stream Southern Water 69 -18 935 -89
1126 Abbotsley Brook Anglian Water 50 -17 935 -172
1127 River Eamont United Utilities 111 -36 932 -765
1128 Little Compton Stream Thames Water 69 12 931 247
1129 Black Dene Burn Northumbrian Water 125 -45 929 -613
1130 Blackwater Thames Water 121 61 927 505
1131 River Alne Severn Trent Water 152 49 925 341
1132 River Win Wessex Water 83 47 925 749
1133 Dibbinsdale Brook United Utilities 109 -6 923 -15
1134 River Stort Thames Water 64 29 922 597
1135 Northweald Brook Thames Water 72 -22 920 -429
1136 Pocklington Beck Yorkshire Water 100 21 919 279
1137 River Tyne Estuary Northumbrian Water 314 61 917 236
1138 Potto Beck Northumbrian Water 79 67 915 794
1139 Felbridge Water Southern Water 108 20 912 2
1140 Higher Ferry Drain Dwr Cymru Welsh Water 83 -37 912 -85
1141 Olveston Common Rhyne Wessex Water 61 5 911 11
1142 Bowburn Beck Northumbrian Water 131 -44 911 -215
1143 Tees Northumbrian Water 222 -83 909 -528
1144 Hawkhurst South Stream Southern Water 112 -12 908 -237
1145 Little Petherick Creek South West Water 107 0 908 74
1146 Heal-Eye Stream South West Water 54 2 907 100
1147 Eller Beck Yorkshire Water 176 -17 906 -311
1148 Thame Thames Water 82 71 906 850
1149 Careys Brook Severn Trent Water 79 23 904 38
1150 Crook Beck Northumbrian Water 158 -47 903 -532
1151 Grand Union Canal Stream Severn Trent Water 69 -14 902 -246
1152 Wince Brook United Utilities 258 -215 901 -953
1153 Gilwiskaw Brook Severn Trent Water 69 11 900 30
1154 River Cerne Wessex Water 50 27 899 533
1155 Cinderford Brook Severn Trent Water 127 34 897 104
1156 Stockerley Burn, Northumbrian Water 148 -6 896 350
1157 River Blakewater United Utilities 390 -629 895 -7,280
1158 Thames Estuary Anglian Water 183 -383 893 -909
1159 Bretton Brook Yorkshire Water 83 -46 892 -740
1160 Cfgin Dwr Cymru Welsh Water 95 8 891 130
1161 Tresillian River Estuary South West Water 76 7 890 -11
1162 Campton Brook, R Ivel Anglian Water 71 66 886 845
1163 River Lud/Louth Canal Anglian Water 89 -56 886 129
1164 Thornton Brook/River Gowy United Utilities 91 0 885 174
1165 Estuarial Waters Of River Dwyryd Dwr Cymru Welsh Water 84 -25 885 -234
1166 Weston Mill Stream South West Water 74 7 884 183
1167 Bourne - South Thames Water 78 33 884 568
1168 Wych Brook Dwr Cymru Welsh Water 112 33 883 457
1169 Lune Estuary United Utilities 95 -39 881 -616
1170 River Maun Severn Trent Water 263 -98 879 -228
1171 Culverted Section Of Gaywood R Anglian Water 217 -39 878 0
1172 Estuarial Waters Of River Neath Dwr Cymru Welsh Water 218 -32 878 -98
1173 Foss Dike Yorkshire Water 77 -7 877 174
1174 Cock Beck Yorkshire Water 126 5 875 -1
1175 East Stream Southern Water 56 -26 875 -259
1176 River Rhondda Fawr Dwr Cymru Welsh Water 118 -9 875 -288
1177 Cresswell Arm - Millwood Brook Severn Trent Water 113 11 875 -49
1178 Tawelan Brook Dwr Cymru Welsh Water 197 -105 874 -644
1179 River Spen Yorkshire Water 219 -111 874 -542
1180 Totty Beck Yorkshire Water 93 -43 873 -369
1181 North Delph Anglian Water 59 -13 871 -172
1182 River Meddanen Dwr Cymru Welsh Water 82 -14 870 -336
1183 Petherton Stream Wessex Water 80 0 869 266
1184 Wash Dike Yorkshire Water 131 -27 868 -344
1185 Tickerage Stream Southern Water 103 22 867 15
1186 Foss Ditch Wessex Water 50 7 865 160
1187 Cross Rhyne Wessex Water 55 36 861 770
1188 Horfield Brook Wessex Water 216 -20 859 62
1189 Cuttle Brook Severn Trent Water 82 2 859 114
1190 River Brefi Dwr Cymru Welsh Water 102 -54 855 -842
1191 Scad Beck United Utilities 86 -23 853 -700
1192 Bere Stream Wessex Water 45 -8 852 -277
1193 Hummer Beck Northumbrian Water 86 -29 852 -937
1194 Blackawton Stream South West Water 71 -44 850 -769
1195 Norbury Brook United Utilities 72 -16 850 -353
1196 Aldreth Canal Anglian Water 60 14 850 18
1197 River Winster United Utilities 71 -13 849 -317
1198 Braint Dwr Cymru Welsh Water 99 0 848 -8
1199 Hessle Beck Yorkshire Water 58 -4 848 -173
1200 Wallington River Southern Water 85 -7 847 -114
1201 Trent And Mersey Canal United Utilities 117 -11 845 343
1202 Summerstown Ditch Thames Water 69 -30 844 -988
1203 Corfe River Wessex Water 129 -26 844 -169
1204 Patten Beck United Utilities 129 -20 843 -801
1205 Newton Creek South West Water 113 35 842 172
1206 Repton Brook Severn Trent Water 88 23 841 160
1207 River Mellte Dwr Cymru Welsh Water 59 -154 841 -1,784
1208 River Teify Dwr Cymru Welsh Water 79 -104 841 -2,047
1209 Ewenni Fach Dwr Cymru Welsh Water 109 -15 841 -386
1210 Pendle Water United Utilities 219 -197 840 -1,080
1211 An Nant Dyfrygi Dwr Cymru Welsh Water 50 10 840 265
1212 Hunton Beck Yorkshire Water 91 -16 839 -386
1213 Tideswell Brook Severn Trent Water 96 -32 838 -874
1214 River Humber T Anglian Water 141 10 836 -121
1215 River Blackwater Thames Water 88 35 834 430
1216 Blue Brook Thames Water 56 28 834 541
1217 Briff Lane Stream Thames Water 73 -12 833 -470
1218 Unknown Dwr Cymru Welsh Water 79 58 833 742
1219 Stell Yorkshire Water 86 -69 831 -859
1220 Tollesbury Fleet To Blackwater Anglian Water 50 24 828 619
1221 Midford Brook Wessex Water 153 47 826 555
1222 River Wylye Via A Reed Bed Wessex Water 191 21 826 266
1223 Henton Stream Thames Water 105 16 825 267
1224 River Tale South West Water 74 -97 824 -1,238
1225 Ransonmoor Drain Anglian Water 47 2 823 42
1226 River Lark Anglian Water 96 32 823 420
1227 Freshwater River Great Stour Southern Water 47 28 822 670
1228 Ouse Yorkshire Water 70 -23 822 731
1229 Yockerton Brook Severn Trent Water 84 5 821 43
1230 Taff Bargoed Dwr Cymru Welsh Water 100 1 820 61
1231 Badsey Brook Severn Trent Water 118 25 819 294
1232 South Milton Stream South West Water 50 -43 819 -691
1233 Loughor Est'Y Dwr Cymru Welsh Water 66 66 819 819
1234 Whiteacres Brook Severn Trent Water 108 -4 818 -158
1235 Unnamed Glynde Reach/Ouse Southern Water 63 -10 817 -263
1236 River Wiske Yorkshire Water 173 29 815 185
1237 Mill Ditch Southern Water 99 -26 814 -242
1238 River Calder And River Spen Yorkshire Water 95 -46 813 -716
1239 Bourne Eau + Black Sluice Dyke Anglian Water 85 66 813 729
1240 Cod Beck Yorkshire Water 167 -3 813 150
1241 River Gwenfro Dwr Cymru Welsh Water 241 -121 811 -444
1242 Fence Burn Northumbrian Water 136 5 811 -135
1243 River Llethi Dwr Cymru Welsh Water 88 -19 811 -128
1244 Nant Bargoed Dwr Cymru Welsh Water 96 13 811 -42
1245 Witton Brook United Utilities 54 6 811 281
1246 Tidal River Rother Southern Water 70 12 811 106
1247 Benny Stream South West Water 69 -8 810 -353
1248 Landrake Stream South West Water 57 9 808 218
1249 Unnamed Culvert Of Eamontriver United Utilities 127 3 807 -217
1250 Dover Beck Severn Trent Water 41 -12 807 -50
1251 River Box Anglian Water 66 30 806 444
1252 River Ceunant Sych Dwr Cymru Welsh Water 114 -35 806 -318
1253 Rubaxton Water Dwr Cymru Welsh Water 98 -74 805 -636
1254 River Beal United Utilities 80 -56 802 -997
1255 Holbeach River Anglian Water 53 12 801 230
1256 Un Swavesey Dra Anglian Water 69 67 799 783
1257 Speringbrook Sewer Southern Water 66 1 798 -116
1258 Kislingbury Branch R Nene Anglian Water 67 16 796 23
1259 Somer Stream Wessex Water 139 7 794 275
1260 Kent Water Southern Water 72 4 793 -37
1261 Langford Brook Wessex Water 46 -14 791 -248
1262 Faringdon Brook/River Thames Thames Water 138 22 790 263
1263 River Penk Severn Trent Water 102 -7 790 308
1264 Broad Rife Southern Water 57 -27 789 -607
1265 Piethorne Brook Rvr Beal United Utilities 61 60 789 789
1266 Nant Y Gro Dwr Cymru Welsh Water 219 44 789 405
1267 Barton Beck Northumbrian Water 131 30 787 81
1268 River Weaver South West Water 72 48 787 583
1269 Bumpstead Brook River Stour N Anglian Water 69 51 787 487
1270 Brislington Brook Wessex Water 184 -3 785 145
1271 Nant Coslech Dwr Cymru Welsh Water 88 -21 785 -211
1272 Longford Brook United Utilities 111 0 785 16
1273 Farley Brook Severn Trent Water 75 53 784 711
1274 River Rib Thames Water 82 34 781 485
1275 Cwmllechen Dwr Cymru Welsh Water 85 -41 781 -788
1276 Mere Gutter United Utilities 93 17 779 89
1277 Wreigh Burn Northumbrian Water 86 1 779 -420
1278 Aylesbeare Brook South West Water 103 -33 779 -576
1279 Fingle Brook South West Water 149 -35 779 154
1280 Brington Brook Anglian Water 65 5 777 486
1281 Bewl Water Southern Water 68 11 777 157
1282 Winterton Mars Dwr Cymru Welsh Water 109 109 777 777
1283 Wey Thames Water 83 19 776 0
1284 River Roding Thames Water 221 -86 775 -184
1285 Pudding Brook Wessex Water 99 -1 773 62
1286 Canker Dyke Yorkshire Water 237 23 773 207
1287 Saltergill Beck, Tees Catchmet Northumbrian Water 59 4 772 99
1288 S.Beck N.Beck South Forty Foot Anglian Water 74 25 771 226
1289 Carr Brook United Utilities 157 -46 769 -345
1290 North Tyne Northumbrian Water 179 35 769 234
1291 Derwent Northumbrian Water 192 -110 769 -694
1292 Winterton Marsh Stream Dwr Cymru Welsh Water 103 34 768 343
1293 Redleadmill Brook Yorkshire Water 82 -58 767 -1,347
1294 Shap Beck United Utilities 44 -6 767 -176
1295 River Laen Dwr Cymru Welsh Water 34 -257 765 -5,046
1296 Glossop Brook United Utilities 182 44 764 35
1297 Fowey Estuary South West Water 91 -9 764 -2
1298 St. Catherines Brook Wessex Water 80 11 763 276
1299 River Bargoed Dwr Cymru Welsh Water 199 -30 763 -1,062
1300 Whittlesey Dyke Anglian Water 45 19 762 397
1301 R Lark Anglian Water 58 53 760 702
1302 Soham Lode Anglian Water 65 32 759 353
1303 Wriggle River Wessex Water 97 -10 757 -40
1304 Golbourne Brook Dwr Cymru Welsh Water 97 6 757 206
1305 Tysoe Brook Severn Trent Water 70 -23 756 -82
1306 South Tyne / Haltwhistle Burn Northumbrian Water 160 -12 755 -190
1307 Adel Beck Yorkshire Water 218 -40 754 -198
1308 Langham Brook Severn Trent Water 59 47 754 733
1309 Wistaton Brook United Utilities 103 -3 753 141
1310 Landcourse Rhyne Wessex Water 66 9 752 565
1311 Upper Clydach Dwr Cymru Welsh Water 116 -15 752 -128
1312 Holton Beck Louth Canal Anglian Water 50 4 752 597
1313 Par Brook Southern Water 76 -13 751 -268
1314 Little Beck Yorkshire Water 67 2 751 61
1315 Pont Burn Northumbrian Water 138 -23 750 -121
1316 Gaddesby Brook Severn Trent Water 113 -56 749 -789
1317 Dunholme Beck Anglian Water 55 -6 749 -111
1318 River Brennig Dwr Cymru Welsh Water 107 -18 745 -297
1319 Farnley Beck Yorkshire Water 139 18 745 103
1320 East Looe River South West Water 109 -49 744 -421
1321 River Pevensey Southern Water 74 2 742 323
1322 River Glaslyn Dwr Cymru Welsh Water 145 -71 742 -1,157
1323 Chichester Harbour Channel Southern Water 65 -40 742 -1,019
1324 Wood Brook Severn Trent Water 110 -36 742 -189
1325 Kidsgrove Stream Wheelock United Utilities 52 38 741 536
1326 Piddle Brook Severn Trent Water 65 12 740 269
1327 Heckington Eau Anglian Water 69 15 739 194
1328 Herrington Burn/Moors Burn Northumbrian Water 66 -5 739 -132
1329 River Winniford Wessex Water 60 0 738 -104
1330 Fleet Severn Trent Water 44 -25 736 -443
1331 Ibstock Brook Severn Trent Water 104 -19 736 -459
1332 River Elwy Dwr Cymru Welsh Water 71 -33 735 -849
1333 Botany Stream Southern Water 90 17 735 285
1334 Springs Watercourse Wessex Water 53 -7 734 -326
1335 Wheatley Beck, River Ribble United Utilities 79 3 734 -441
1336 River Jordan Anglian Water 58 3 733 185
1337 River Dare Dwr Cymru Welsh Water 120 6 732 114
1338 Swansea Bay Dwr Cymru Welsh Water 96 64 731 587
1339 Twizell Burn Northumbrian Water 75 -35 730 -775
1340 Nant Iorwerth Goch Dwr Cymru Welsh Water 118 -15 729 -323
1341 Gatwick Stream Thames Water 65 -16 729 -236
1342 Pembroke River Dwr Cymru Welsh Water 156 -5 728 -334
1343 Brandy Brook Dwr Cymru Welsh Water 57 51 726 707
1344 Sandal Beck United Utilities 83 -43 726 -902
1345 Murk Esk Yorkshire Water 99 -23 724 -368
1346 Hawkbridge Brook South West Water 80 6 724 -45
1347 River Lyne Northumbrian Water 91 -11 722 -245
1348 Hagg Beck Northumbrian Water 127 -43 719 -118
1349 Newton Harcourt Brook Severn Trent Water 67 -13 719 -202
1350 Tref Y Nant Brook Dwr Cymru Welsh Water 158 -19 719 -92
1351 Thorpe Brook Severn Trent Water 81 -21 718 -342
1352 Earby Beck Yorkshire Water 178 -50 718 -547
1353 Red River South West Water 184 35 718 172
1354 Abbey Petty Sewer Southern Water 62 -9 717 -631
1355 Nant Ganna Dwr Cymru Welsh Water 72 3 717 71
1356 Unnamed River Caen South West Water 204 -18 714 -148
1357 Culverted Runwick Beck Yorkshire Water 62 -14 713 -118
1358 Swindale Beck United Utilities 166 -25 712 -568
1359 River Rhythallt Dwr Cymru Welsh Water 70 70 712 712
1360 River Swarbourne Severn Trent Water 61 -4 712 45
1361 South Brook Wessex Water 79 11 711 120
1362 Barden Mill Stream Southern Water 112 45 710 360
1363 Little Hallingbury Brook Thames Water 50 -11 710 -136
1364 Sherford River Wessex Water 68 -11 710 -84
1365 Ditch Yorkshire Water 124 -31 709 113
1366 Toppesfield Brook River Colne Anglian Water 78 42 709 560
1367 River Teifi Via An Un- Dwr Cymru Welsh Water 79 -35 707 88
1368 River Wey And Groundwater Thames Water 62 -37 706 -420
1369 Truro River Estuary South West Water 57 1 706 -2
1370 River Dee Estuary Dwr Cymru Welsh Water 116 31 704 245
1371 Pyrton Stream Thames Water 90 82 703 686
1372 Car Dyke Anglian Water 69 19 702 404
1373 Humble Burn Northumbrian Water 61 4 699 99
1374 Porter Or Little Don River Yorkshire Water 107 -25 698 -435
1375 Bottesford Beck Severn Trent Water 229 -177 698 -266
1376 Fairham Brook Severn Trent Water 68 -26 697 -629
1377 Stainley Beck Yorkshire Water 39 -25 696 -632
1378 Pennington Brook United Utilities 59 -188 695 -3,830
1379 Nant Arberth Dwr Cymru Welsh Water 51 13 695 143
1380 Dyan Beck United Utilities 56 16 695 580
1381 River Cocker United Utilities 138 -68 694 -261
1382 Gagle Brook Thames Water 55 18 693 391
1383 Millbeck United Utilities 194 5 692 -100
1384 Mill Drain Anglian Water 111 -11 692 -640
1385 Carlton Brook Severn Trent Water 73 -1 691 -172
1386 Drain To River Derwent Yorkshire Water 84 -26 689 -251
1387 Bilbrook Severn Trent Water 79 31 688 375
1388 River Lod Southern Water 72 2 687 -177
1389 Counter Drain Anglian Water 77 52 687 367
1390 Skitter Beck Anglian Water 59 -62 683 -1,222
1391 Louth Canal Anglian Water 72 -22 683 -26
1392 Swan Sike Drain Yorkshire Water 59 -28 683 -492
1393 Benefield Brook Anglian Water 80 6 683 388
1394 North Mills Brook Wessex Water 61 1 682 -107
1395 Fenacre Water South West Water 59 -9 682 -84
1396 Chichester Hbr Via Little Deep Southern Water 63 -15 681 -466
1397 Salcombe Estuary South West Water 50 24 679 311
1398 Skell Yorkshire Water 147 -23 678 -316
1399 Washle Brook Thames Water 53 34 678 519
1400 River North Tyne Northumbrian Water 186 -44 678 -2,177
1401 Hyde Brook Severn Trent Water 94 -10 677 -576
1402 Tit Brook Anglian Water 49 13 677 247
1403 York Road Brook Severn Trent Water 204 144 675 392
1404 Bollinhurst Brook United Utilities 54 -9 674 -177
1405 Cald Beck United Utilities 92 -4 673 -434
1406 East House Burn Northumbrian Water 57 0 673 -128
1407 Yelvertoft Brook Severn Trent Water 91 20 672 167
1408 Fen Drain River Great Ouse Anglian Water 69 -16 669 -12
1409 Bushby Brook Severn Trent Water 79 -23 669 -381
1410 Pont Pill South West Water 56 -54 668 -375
1411 Nevills Drain Yorkshire Water 80 -24 667 -79
1412 Ford Brook Severn Trent Water 239 51 665 -190
1413 Rhondda Fach Dwr Cymru Welsh Water 194 -29 665 -147
1414 Seeley Brook Severn Trent Water 89 -18 664 -556
1415 Tees Estuary Northumbrian Water 202 -75 664 -25
1416 Powsey Brook Dwr Cymru Welsh Water 121 7 663 262
1417 Salterwath Beck United Utilities 145 14 661 -10
1418 Skytering Beck Northumbrian Water 48 -10 659 163
1419 Savick Brook United Utilities 190 -52 659 -10
1420 East Stour River Southern Water 58 -16 658 -372
1421 Lower Town Harbour, Fishguard Dwr Cymru Welsh Water 84 9 657 379
1422 River Rawthey United Utilities 94 4 657 -848
1423 Tockington Mill Rhyne Wessex Water 55 13 657 256
1424 Fleet Beck Yorkshire Water 51 17 656 248
1425 Blower'S Brook Severn Trent Water 104 -47 654 -1,383
1426 Letcombe Brook Thames Water 96 18 649 116
1427 Syresham Stream Anglian Water 59 13 648 316
1428 Elsworth Brook Anglian Water 40 12 647 300
1429 River Drywi Dwr Cymru Welsh Water 72 14 647 -101
1430 River Medway Estuary Southern Water 230 -144 647 -592
1431 Bagley Beck Yorkshire Water 196 -16 646 -18
1432 Chatburn Brook United Utilities 75 -30 646 -607
1433 Porthtowan Stream South West Water 44 17 645 325
1434 River Little Went Yorkshire Water 115 -55 645 -816
1435 Brinkworth Brook Wessex Water 60 -8 644 -57
1436 Colden Water Yorkshire Water 49 30 643 442
1437 River Ritec Dwr Cymru Welsh Water 64 -21 642 -147
1438 Dipton Burn Northumbrian Water 113 -8 642 -267
1439 Buckenham Stream Anglian Water 50 26 641 400
1440 Ash Brook, River Great Ouse Anglian Water 52 40 639 558
1441 Estuarial Waters Of Holy Island Strait South Dwr Cymru Welsh Water 53 5 639 -59
1442 Hindsford Brook United Utilities 73 -44 638 -422
1443 Sully Brook Dwr Cymru Welsh Water 85 -11 638 -186
1444 Press Brook Severn Trent Water 72 -37 637 -450
1445 Seaton Burn Northumbrian Water 241 -34 637 29
1446 River Cam Anglian Water 47 -45 637 -853
1447 River Iago Dwr Cymru Welsh Water 46 21 637 209
1448 Farthinghoestream Thames Water 48 45 636 630
1449 Braydon Brook Wessex Water 48 2 635 -40
1450 To River Flit Anglian Water 71 49 635 579
1451 Arch Brook South West Water 81 16 634 -172
1452 Cwmbran Brook Via Surface Water Sewer Dwr Cymru Welsh Water 119 -1 634 230
1453 Plummers Brook Severn Trent Water 41 1 634 -63
1454 Barnwell Brook Anglian Water 35 20 634 408
1455 Fairbourne Stream Wessex Water 65 -7 631 14
1456 Carrwood Pk Brook Lady B United Utilities 92 -28 631 -86
1457 Brook River Nene Anglian Water 90 38 630 487
1458 Coastal Waters Off Llanina Pt Dwr Cymru Welsh Water 48 -38 630 -595
1459 Owland Wood Dyke Severn Trent Water 84 22 629 15
1460 River Ray Thames Water 48 -14 629 -140
1461 Hartshay Brook Severn Trent Water 179 -82 628 -665
1462 River Key Thames Water 53 12 627 45
1463 Skegby Brook Severn Trent Water 123 -88 627 -776
1464 Far Stock Beck United Utilities 108 6 625 -149
1465 River Lowther United Utilities 127 57 625 149
1466 Dulas Brook Dwr Cymru Welsh Water 68 -13 624 -291
1467 Bishop Wilton Beck Yorkshire Water 83 -90 623 -1,308
1468 Lyme Brook Severn Trent Water 355 55 623 131
1469 Crewkerne Stream Wessex Water 141 -31 623 -449
1470 Taff Dwr Cymru Welsh Water 123 30 622 189
1471 Leiston Beck Anglian Water 328 -7 621 272
1472 River Tame Via Sws United Utilities 76 -44 621 -765
1473 Newmarket No.1 Public Drain Anglian Water 82 11 620 248
1474 Rushyford Beck Northumbrian Water 160 -34 619 -415
1475 Slake Northumbrian Water 51 31 619 403
1476 Swale Estuary Southern Water 53 6 618 109
1477 Pearl Brook United Utilities 88 -56 618 -185
1478 River Tean Severn Trent Water 188 82 618 282
1479 River Drone Yorkshire Water 173 -93 618 -644
1480 Ogle Burn Northumbrian Water 47 24 618 336
1481 Nidd And S Yorkshire Water 120 -11 617 -207
1482 Estuary East Of Sandy Haven Dwr Cymru Welsh Water 46 -23 616 -631
1483 Kniveton Brook Severn Trent Water 94 8 615 -525
1484 Oak Beck And Coppice Beck Yorkshire Water 361 -49 615 -153
1485 Cut Thames Water 53 -13 614 -69
1486 Sleek Burn Northumbrian Water 109 -60 614 -433
1487 Tywi Estuary Dwr Cymru Welsh Water 181 -44 614 -625
1488 Ouse Dyke Severn Trent Water 285 -78 612 -144
1489 Hooton Dike Severn Trent Water 57 -20 610 -384
1490 Trent And Mersey Canal Severn Trent Water 130 36 609 -17
1491 Bow Brook Wessex Water 87 2 607 -217
1492 Cullompton Mill Leat South West Water 48 6 607 186
1493 Williamthorpe Reservoir Yorkshire Water 81 -17 607 -521
1494 Holme Beck Via Sws United Utilities 57 55 605 604
1495 Unity Brook United Utilities 79 -1 605 78
1496 Frogmore Creek South West Water 50 -15 604 -357
1497 Gutter Fawr Dwr Cymru Welsh Water 56 -3 604 -44
1498 Julians Pill Dwr Cymru Welsh Water 47 47 604 604
1499 Broughton Brook Dwr Cymru Welsh Water 95 37 603 431
1500 Langley Beck, Northumbrian Water 62 13 603 132
1501 Thurlaston Brook Severn Trent Water 95 -2 602 217
1502 River Goyt Vis Sws United Utilities 98 -40 601 -318
1503 Long Whatton Brook Severn Trent Water 74 -57 601 -843
1504 Black Sewer River Adur Southern Water 39 -25 599 -526
1505 Lavendon Brook River Great Ous Anglian Water 102 35 599 259
1506 Morland Beck United Utilities 135 15 599 -288
1507 River Bly Severn Trent Water 54 3 599 27
1508 Black Brook, Brad Brook Dwr Cymru Welsh Water 77 30 598 292
1509 River Blackwater Anglian Water 63 13 598 160
1510 Tennant Canal Dwr Cymru Welsh Water 142 -18 598 -68
1511 Nidon Brook Wessex Water 140 -32 597 -451
1512 Pendleton Brook United Utilities 121 -20 597 -160
1513 Shafton Beck Yorkshire Water 67 -19 597 -500
1514 Brixworth Branch Of R Nen Anglian Water 58 11 596 418
1515 Milford Haven Waterway Dwr Cymru Welsh Water 152 -47 596 -466
1516 Castle Brook United Utilities 84 -42 596 -577
1517 U Nant Llech Dwr Cymru Welsh Water 96 -5 596 117
1518 Holy Well Burn Northumbrian Water 72 -10 594 -203
1519 Colne Water United Utilities 114 -36 594 -423
1520 Henover Brook Wessex Water 43 -8 594 -42
1521 North Sea Yorkshire Water 82 -10 593 31
1522 River Deerness Northumbrian Water 124 -98 593 -650
1523 Cow Honeybourne Brook Severn Trent Water 57 22 592 294
1524 River Deer South West Water 121 4 591 73
1525 Hancock'S Water Wessex Water 69 -22 590 -199
1526 Wen Dwr Cymru Welsh Water 33 33 590 590
1527 Carrant Brook Severn Trent Water 95 15 590 133
1528 Shilston Brook South West Water 49 49 590 590
1529 Nant Dowlais Dwr Cymru Welsh Water 114 -16 589 -80
1530 Bitham Brook/ Bitham Brook Wessex Water 80 5 589 -198
1531 Coxhoe Beck Northumbrian Water 218 -102 588 -383
1532 Sherburn Beck Northumbrian Water 61 4 588 33
1533 Whitelass Beck Yorkshire Water 89 53 585 480
1534 Pasture Lane Dyke Severn Trent Water 65 5 584 105
1535 Catchwater Drn Yorkshire Water 50 21 584 442
1536 River Wyre Estuary United Utilities 110 94 582 554
1537 Car Brook Yorkshire Water 215 -179 582 -680
1538 River Soar Or S Severn Trent Water 80 27 581 199
1539 Lee Thames Water 61 47 581 467
1540 Middle Brook United Utilities 358 -44 580 -40
1541 Fivehead River Wessex Water 84 -133 580 -460
1542 Hooborough Brook Severn Trent Water 112 -17 579 -28
1543 Ringmore Stream South West Water 46 -40 579 -898
1544 Borle Brook Severn Trent Water 130 -1 579 -139
1545 Normanton Brook Severn Trent Water 109 -37 578 -90
1546 Praze Stream South West Water 61 -16 576 -149
1547 Skerne, A To Northumbrian Water 51 -18 575 -213
1548 Gransden Brook Anglian Water 44 24 575 417
1549 Pont-Shan Brook Dwr Cymru Welsh Water 66 66 575 575
1550 River Hooke Wessex Water 67 -9 574 -117
1551 Beaulieu River Southern Water 43 -17 573 -217
1552 Skellingthorpe Main Drain Anglian Water 40 -10 573 -260
1553 Skeeby Beck Yorkshire Water 52 7 572 417
1554 River Cober South West Water 56 49 572 559
1555 Cholsey Brook Thames Water 45 43 571 567
1556 Dinckley Brook United Utilities 172 1 571 -254
1557 Thornham Watercourse River Dov Anglian Water 31 8 571 105
1558 Holmesfield Brook Yorkshire Water 75 -48 570 -1,193
1559 Nant Helen Dwr Cymru Welsh Water 71 -15 570 -209
1560 River Tafarn Helyg Dwr Cymru Welsh Water 54 -84 569 -916
1561 Small Brook South West Water 47 -29 569 -681
1562 River Stor Southern Water 45 -34 569 -357
1563 Westbury Brook Severn Trent Water 49 31 568 462
1564 Unnamed Herrings Stream Southern Water 77 6 568 214
1565 Freeby Brook Severn Trent Water 132 83 567 389
1566 Pandy Brook Dwr Cymru Welsh Water 134 9 566 84
1567 R Humber Anglian Water 25 -5 566 343
1568 River Caledffrwd Dwr Cymru Welsh Water 125 -49 566 -107
1569 River Darwin United Utilities 96 -24 564 -171
1570 River Derril South West Water 79 -9 563 -153
1571 Langton Beck Northumbrian Water 115 -9 562 -97
1572 Stogursey Brook Wessex Water 62 5 561 125
1573 River Meden Severn Trent Water 182 -56 561 -314
1574 Kenwith Stream South West Water 351 22 560 21
1575 Hook Nortonbrook Thames Water 42 29 559 500
1576 Manifold Beck, Northumbrian Water 112 -152 559 -766
1577 Dodscott Brook South West Water 26 -50 559 158
1578 Eden Vale Stream Southern Water 63 23 558 109
1579 River Hamps Severn Trent Water 45 1 558 -71
1580 Strine Brook Severn Trent Water 59 9 557 98
1581 Byfield Brook Thames Water 31 -20 557 -33
1582 Mainsforth Stell Northumbrian Water 95 -7 556 -28
1583 Gawcott Brook Anglian Water 64 61 556 527
1584 Longnor Brook Severn Trent Water 76 -8 556 -493
1585 Unnamed R Neath Dwr Cymru Welsh Water 60 60 556 556
1586 Houselop Beck, Northumbrian Water 120 33 555 148
1587 Ouse River Anglian Water 45 -1 555 -6
1588 Of Ince Brook Via Sws United Utilities 151 -10 555 -497
1589 Rutland Water Anglian Water 71 -53 554 -215
1590 River Ryton Severn Trent Water 53 -84 554 -1,326
1591 Dyers Brook Wessex Water 135 -11 553 272
1592 Endon Brook Severn Trent Water 108 -11 553 -501
1593 Narberth Brook Dwr Cymru Welsh Water 136 -52 552 -412
1594 Binneford Water South West Water 77 -20 552 -181
1595 Hen Brook Severn Trent Water 29 25 550 524
1596 Pannel Sewer Southern Water 86 -4 549 22
1597 River Tees-Saline Estuary Northumbrian Water 39 2 549 64
1598 Mare Fen Drain Anglian Water 49 2 549 142
1599 Teifi Dwr Cymru Welsh Water 188 139 549 317
1600 Countesthorpe Brook Severn Trent Water 108 -5 548 -513
1601 Don Estuary Northumbrian Water 49 -20 548 -162
1602 Round Wood Beck Yorkshire Water 105 -13 548 -374
1603 Newton Longville Brook Anglian Water 79 0 547 281
1604 River Line Southern Water 76 1 547 -42
1605 Bothel Beck United Utilities 147 -11 546 -166
1606 Woodbridge Brook Wessex Water 48 -41 544 -639
1607 Brunton Burn Northumbrian Water 69 -1 542 -256
1608 Dabholm Gut Northumbrian Water 102 -44 541 -36
1609 Bedford Brook Glaze Brook United Utilities 65 -55 541 -1,061
1610 Eaves Bk, Savick Bk United Utilities 54 -25 541 -635
1611 River Bowydd Dwr Cymru Welsh Water 98 -39 541 -371
1612 River Lambourn Thames Water 35 30 541 503
1613 Goodwick Brook Dwr Cymru Welsh Water 99 -5 540 -327
1614 River Tud Anglian Water 44 8 539 272
1615 Whatley Brook Wessex Water 60 -24 539 -20
1616 Chestle Pill River Wessex Water 40 17 538 253
1617 North Drain Yorkshire Water 33 9 538 167
1618 Chisworth Brook United Utilities 117 -7 538 -137
1619 Nant Y Twlc Dwr Cymru Welsh Water 175 6 537 -16
1620 River Venn South West Water 99 29 537 100
1621 Llugwy Dwr Cymru Welsh Water 30 30 537 537
1622 Stanford Brook Thames Water 73 34 536 248
1623 Sheffield Beck Yorkshire Water 46 -19 536 -388
1624 Nant Corrwg Dwr Cymru Welsh Water 79 25 535 201
1625 Pessall Brook Severn Trent Water 51 10 535 149
1626 Lady Burn Northumbrian Water 56 -21 534 -330
1627 Julian'S Pill Dwr Cymru Welsh Water 46 -221 534 -1,333
1628 Haughley Water Anglian Water 70 14 533 249
1629 Hungerford Stream Southern Water 66 -5 533 25
1630 Glanyrafon Brook Dwr Cymru Welsh Water 111 23 532 366
1631 Cundall Beck Yorkshire Water 153 -100 531 -1,000
1632 Cyt Bach Surface Watercourse Dwr Cymru Welsh Water 135 5 530 50
1633 Little Don River Yorkshire Water 140 -43 530 -366
1634 Inland Waters Dwr Cymru Welsh Water 70 3 529 59
1635 Farnham Park Thames Water 52 15 529 205
1636 Rivers Brook Wessex Water 34 4 529 136
1637 Laverton Brook Severn Trent Water 70 -23 528 44
1638 Padbury Brook River Great Ouse Anglian Water 50 4 526 149
1639 Mobberley Brook Rv Bollin United Utilities 87 -18 525 -108
1640 Finham Brook Severn Trent Water 55 1 524 151
1641 Cam Brook Severn Trent Water 87 47 524 361
1642 Nunburnholme Beck Yorkshire Water 39 2 523 -4
1643 Barkham Brook Thames Water 53 1 522 164
1644 Nearby Ditch Yorkshire Water 78 -2 521 141
1645 River Dafen Dwr Cymru Welsh Water 71 -43 521 -704
1646 Hemsworth Dyke Yorkshire Water 103 -55 521 -1,058
1647 Chivricks Brook Wessex Water 55 5 520 116
1648 Halse Water Wessex Water 75 18 520 131
1649 Paglesham Creek Anglian Water 43 17 519 428
1650 Osbaston Brook Severn Trent Water 75 4 519 109
1651 Northlew Strm And South West Water 69 -45 518 154
1652 River Steeping Anglian Water 35 5 518 268
1653 Conwy Estuary Dwr Cymru Welsh Water 45 -33 518 -446
1654 Crich Brook Severn Trent Water 115 -45 518 -748
1655 Controlled Waters Southern Water 59 -5 517 -103
1656 White Bridge Drain River Great Anglian Water 46 22 516 274
1657 St John'S Lake South West Water 55 -1 516 123
1658 River Nidd Via Sws Yorkshire Water 58 -20 516 -360
1659 Haywards Water Wessex Water 132 8 516 -14
1660 Marsham Sewer Southern Water 71 4 515 51
1661 Cropwell Bishop Brook Severn Trent Water 66 28 515 403
1662 Culvert River Darwen United Utilities 184 -22 515 -313
1663 Black Burn Northumbrian Water 223 -31 514 -76
1664 Cwm Ffrwd Dwr Cymru Welsh Water 81 -22 514 -166
1665 Wells Moat Stream Wessex Water 46 11 513 260
1666 Linburn Beck Northumbrian Water 88 56 512 486
1667 Swine Syke Anglian Water 50 -18 512 -97
1668 River Crouch T Anglian Water 40 12 511 313
1669 Lower River Stour Wessex Water 55 -15 511 -301
1670 Horwood Brk/Claydon Brk River Anglian Water 49 13 511 263
1671 River Mamog River Cych Dwr Cymru Welsh Water 36 -52 510 -1,064
1672 Swaffham Bulbeck Lode Anglian Water 39 36 509 495
1673 Nant Hafren Dwr Cymru Welsh Water 30 -11 507 -329
1674 Applehaigh Beck Yorkshire Water 101 -16 506 -40
1675 Silkstone Beck Yorkshire Water 78 5 506 169
1676 Billingham Beck Northumbrian Water 158 -11 506 7
1677 Duddo Burn Northumbrian Water 38 -2 505 -119
1678 River Pelenna Dwr Cymru Welsh Water 158 -36 505 -867
1679 River Parrett Estuary Wessex Water 56 2 504 51
1680 Little Avon Wessex Water 79 12 504 151
1681 Hornton Stream Thames Water 47 45 503 479
1682 Coombe Brook Southern Water 54 11 503 104
1683 Parsons Brook Southern Water 60 -3 502 -66
1684 Loach Brook United Utilities 52 -20 502 -139
1685 River Cennen Dwr Cymru Welsh Water 104 -1 501 -54
1686 Henmore Brook Severn Trent Water 128 18 501 126
1687 Castle Pond Dwr Cymru Welsh Water 40 14 501 467
1688 Fir Brook United Utilities 51 14 500 131
1689 Arkle Beck Yorkshire Water 135 73 500 292
1690 Venner'S Water Wessex Water 73 2 500 -102
1691 Shire Brook Yorkshire Water 259 -163 498 -395
1692 Greatham Beck Northumbrian Water 110 -7 498 -203
1693 Collier Brook United Utilities 70 -113 498 -1,073
1694 Halton Drain Anglian Water 38 36 498 481
1695 Horfield Brook Via Sws Wessex Water 147 -4 496 70
1696 River Sawdde Dwr Cymru Welsh Water 89 -39 496 -862
1697 River Medlock United Utilities 184 -130 496 -1,390
1698 River Rothay United Utilities 43 -3 496 -85
1699 Markeaton Brook Severn Trent Water 238 -42 495 -48
1700 Lyne Northumbrian Water 83 -16 495 43
1701 Wold Grift Drain Anglian Water 33 -39 494 50
1702 River Camel South West Water 57 -16 494 61
1703 Sinderland Brook United Utilities 99 -16 492 -295
1704 Chantry Stream South West Water 69 7 492 -49
1705 Chalfield Brook Wessex Water 44 12 492 55
1706 Heads Hope Burn Northumbrian Water 51 -13 491 -57
1707 River Torridge Estuary South West Water 69 12 491 145
1708 Wettenhall Brook United Utilities 92 -15 491 87
1709 Mill Hills Beck Yorkshire Water 31 1 490 201
1710 River Ingrebourne Thames Water 46 1 490 -38
1711 Horse Eye Sewer Southern Water 75 -1 490 38
1712 Solway Firth United Utilities 53 0 490 -210
1713 River Ehen United Utilities 104 -50 489 -353
1714 Tetchill Brook Severn Trent Water 61 -4 489 244
1715 River Lwyd - Source To Conf Dowlais Bk Dwr Cymru Welsh Water 90 27 488 178
1716 River Rivelin Yorkshire Water 163 20 488 -37
1717 Smestow Brook Severn Trent Water 143 -32 488 -20
1718 River Lymn Anglian Water 56 22 488 176
1719 Hardenhuish Brook Wessex Water 76 -6 487 29
1720 River Exe Estuary South West Water 168 14 487 67
1721 Bryn Brook South West Water 48 -3 487 -22
1722 R Lyne Northumbrian Water 54 -11 486 -43
1723 Henllan Brook Dwr Cymru Welsh Water 135 1 486 78
1724 Webbs Lane Stream Thames Water 54 -8 486 -44
1725 Fowlea Brook Severn Trent Water 171 -14 486 -271
1726 Crooks Beck United Utilities 73 -8 485 -110
1727 Nant Y Ci Dwr Cymru Welsh Water 95 -20 485 -365
1728 Hook Lake Southern Water 35 -4 484 73
1729 River Whitting Yorkshire Water 81 -23 484 -158
1730 River Rase Anglian Water 69 -27 483 -182
1731 Croal Minor United Utilities 246 8 483 14
1732 Kettleby Beck Anglian Water 46 -16 483 -184
1733 River Eden Estuary United Utilities 62 -37 483 -476
1734 Tidal River Great Ouse Anglian Water 163 -8 483 -576
1735 River Dalch South West Water 133 -45 482 -40
1736 Brancepeth Beck Northumbrian Water 46 46 481 481
1737 Porter Brook Yorkshire Water 225 -52 480 -67
1738 Laugherne Brook Severn Trent Water 85 14 480 64
1739 Longnewton Beck- Northumbrian Water 47 -10 480 -86
1740 Crooked Oak South West Water 111 29 480 -149
1741 Mallows Drain Hobhole Drain Anglian Water 38 -16 479 -222
1742 Whatcote Brook Severn Trent Water 39 22 478 304
1743 Broughton Beck United Utilities 73 10 478 -22
1744 Wyrley Brook Severn Trent Water 133 45 478 255
1745 Red Lane Dike Yorkshire Water 54 -18 477 -481
1746 Hookstone Beck Yorkshire Water 71 -26 477 -375
1747 Of Balderton Brook Dwr Cymru Welsh Water 45 23 476 416
1748 Simonswood Brook United Utilities 80 -24 476 -197
1749 Manchester Ship Canal Via Sws United Utilities 198 -124 476 -482
1750 Bond Croft Drain Anglian Water 58 4 475 102
1751 Showley Brook United Utilities 92 -19 475 -272
1752 Penwood Stream Thames Water 45 -1 472 -48
1753 Mill Stream Yorkshire Water 141 9 472 99
1754 Dean Dam United Utilities 39 -4 472 41
1755 Ashridge Stream Thames Water 74 54 472 319
1756 River Thames Tidal Thames Water 50 22 471 250
1757 R Chelmer Anglian Water 47 38 470 440
1758 Queniborough Brook Severn Trent Water 40 18 469 287
1759 Nant Cwm-Clais Dwr Cymru Welsh Water 110 10 468 -4
1760 Leven Estuary United Utilities 31 0 468 -3
1761 Demons Beck Northumbrian Water 54 -4 467 -10
1762 Howl Beck Yorkshire Water 67 -38 467 -486
1763 Westleigh Brook United Utilities 182 -162 467 -369
1764 Plymouth Sound South West Water 142 -48 467 -128
1765 Plymouth Sound Via Sws South West Water 99 1 467 67
1766 River Asker Wessex Water 91 21 466 82
1767 Heugh Syke - Of River Tees Northumbrian Water 72 35 466 265
1768 Laneham Beck Severn Trent Water 45 -23 466 -283
1769 Bannister Brook United Utilities 215 -58 466 -149
1770 River Mersey Via Sws United Utilities 176 -45 465 -31
1771 South Burn Northumbrian Water 49 -9 464 -168
1772 Paxton Brook Anglian Water 31 14 462 209
1773 Polebrook Brook Anglian Water 39 0 461 72
1774 Chaddesden Brook Severn Trent Water 129 11 461 232
1775 Llanfairfechan Dwr Cymru Welsh Water 181 65 461 205
1776 Sour Beck Yorkshire Water 49 1 460 69
1777 Singret Brook Dwr Cymru Welsh Water 90 2 459 218
1778 River Dane Via Sws United Utilities 269 -96 459 -915
1779 Till Northumbrian Water 67 -124 459 -424
1780 River Bure Anglian Water 58 -41 459 -361
1781 Pipe Strine Severn Trent Water 51 18 459 279
1782 Garsiwn Ditch Dwr Cymru Welsh Water 77 -15 459 -36
1783 Stanton River Sapist Anglian Water 41 11 458 224
1784 Ease Drain Anglian Water 51 43 456 436
1785 Nant Gochen Dwr Cymru Welsh Water 39 14 456 92
1786 River Yeolm South West Water 59 27 455 226
1787 Northop Brook Dwr Cymru Welsh Water 66 40 455 314
1788 Burton Beck Yorkshire Water 49 -10 455 -282
1789 River Idle Severn Trent Water 49 -40 455 -553
1790 River Glyme Thames Water 41 -18 454 -559
1791 Wash Brook Severn Trent Water 70 51 453 419
1792 East Brook Yorkshire Water 201 -169 453 -664
1793 River Redlake Severn Trent Water 29 5 453 96
1794 Holme Beck Yorkshire Water 126 -15 452 -100
1795 Lopen Brook Wessex Water 60 -4 452 2
1796 River Eau Severn Trent Water 34 34 452 452
1797 Longford Brook Severn Trent Water 65 -103 451 -568
1798 Culverted River Aire Yorkshire Water 162 41 449 288
1799 River Wallington Southern Water 46 -8 448 -22
1800 White Roding Thames Water 69 -24 446 47
1801 Coalford Beck Northumbrian Water 75 -60 446 -659
1802 River Hiz Anglian Water 78 -25 445 271
1803 River Irthing United Utilities 130 -15 445 -218
1804 River Brue Mill Stream Wessex Water 57 11 444 197
1805 River Len Southern Water 76 -9 443 -164
1806 Ten Penny Brook River Colne N Anglian Water 73 -25 443 -376
1807 Blowell Drain Yorkshire Water 47 13 442 172
1808 Chester Burn Northumbrian Water 129 -63 442 -221
1809 Of Black Dyke Anglian Water 42 -5 441 -307
1810 Grise Beck United Utilities 111 -34 440 -257
1811 Little Beck Northumbrian Water 50 30 439 356
1812 Surface Water Sewer And Culver To Cwm Bran Brook Dwr Cymru Welsh Water 88 -18 439 -84
1813 Little Calder United Utilities 80 -23 439 -288
1814 Hayton Beck Yorkshire Water 34 -7 439 -152
1815 Un-Named Stream Into Llifon Dwr Cymru Welsh Water 141 62 439 86
1816 Western Yar Southern Water 108 -7 437 -325
1817 River Ouse/Rawcliffe Ings Dr Yorkshire Water 44 11 437 105
1818 Distington Beck United Utilities 97 9 437 104
1819 Aire And Calder Navigation Yorkshire Water 168 27 436 11
1820 Foulton Hall Ditch Anglian Water 41 -1 436 209
1821 Collingham Beck Yorkshire Water 65 48 435 382
1822 Wrea Brook United Utilities 50 -19 434 156
1823 Cockshot Beck United Utilities 120 4 434 -119
1824 Torrington Beck Anglian Water 50 45 434 383
1825 Cold Hiendley Reservoir Yorkshire Water 63 -16 433 -785
1826 Nolton Bay Dwr Cymru Welsh Water 36 -37 433 -669
1827 Deadman'S Lake Stream Dwr Cymru Welsh Water 30 -26 433 -480
1828 Thames Tidal Thames Water 80 34 432 135
1829 Sandon Brook Anglian Water 59 24 432 202
1830 Lees Head Beck Yorkshire Water 104 -29 431 -224
1831 Culverted Birdforth Beck Yorkshire Water 61 11 431 -110
1832 Slack Brook United Utilities 88 -28 430 -69
1833 River Exe Via Sws South West Water 217 -60 429 146
1834 River Wheelock United Utilities 107 -34 429 0
1835 Ffrwd Wyllt Dwr Cymru Welsh Water 126 -8 428 19
1836 Low Northumbrian Water 119 38 427 -94
1837 Glassonby Beck United Utilities 78 -114 427 -1,398
1838 River Coquet Northumbrian Water 161 7 427 -108
1839 River Tiffey Anglian Water 40 -14 427 -47
1840 Offwell Brook South West Water 41 -36 426 -104
1841 Swill Brook Clvrt River Ribble United Utilities 46 35 426 405
1842 Luddenden Brook Yorkshire Water 59 15 426 82
1843 Mill Dike Yorkshire Water 97 -1 426 -217
1844 Hutton Beck Northumbrian Water 68 1 425 117
1845 Fiddington Brook Wessex Water 37 -10 423 -47
1846 Stone Brook Anglian Water 25 -8 423 -214
1847 Bugthorpe Beck Yorkshire Water 41 -1 423 -12
1848 Trevaunance Stream South West Water 70 20 422 191
1849 Shadycombe Creek South West Water 132 -6 421 138
1850 East Stour Southern Water 77 16 421 151
1851 Blackwater River/Stream South West Water 53 -58 421 -40
1852 Usk Estuary Dwr Cymru Welsh Water 91 -8 420 48
1853 Chillington Stream South West Water 44 41 420 415
1854 Mundon Wash River Anglian Water 35 -19 419 -340
1855 Tach Brook Severn Trent Water 86 67 419 353
1856 Uddens Water Wessex Water 85 2 419 94
1857 River Spodden United Utilities 107 -72 418 -377
1858 Black Brook Wessex Water 39 3 418 -40
1859 River Wydden Dwr Cymru Welsh Water 45 -38 418 -580
1860 Labdon Stream South West Water 48 41 418 392
1861 Farlieth Burn Northumbrian Water 43 -6 418 -121
1862 Marton West Beck Northumbrian Water 38 -5 417 25
1863 River Yeo/River Creedy South West Water 72 -1 417 -80
1864 Nant-Y-Derlwyn Dwr Cymru Welsh Water 79 1 416 -10
1865 Sudburn Beck Northumbrian Water 54 -11 416 -28
1866 Sapey Brook Severn Trent Water 35 26 416 345
1867 Bosherton Lake Dwr Cymru Welsh Water 66 33 416 30
1868 Nant Bargoed Rhymney Dwr Cymru Welsh Water 46 -10 416 -174
1869 Horton Burn Northumbrian Water 61 0 416 78
1870 Coastal Wtrs Nr Stackpole Quay Dwr Cymru Welsh Water 66 31 416 27
1871 Whitson Brook Severn Trent Water 61 3 415 148
1872 Temple Brook South West Water 40 8 415 129
1873 River Roe Dwr Cymru Welsh Water 130 -8 415 -187
1874 Knoll Beck Yorkshire Water 139 -26 414 -223
1875 Haverigg Pool United Utilities 46 -17 414 -167
1876 Ham Brook Southern Water 37 -18 414 -443
1877 Grunty Fen Catchwater Anglian Water 44 -1 414 -33
1878 Nant Mynachdy Dwr Cymru Welsh Water 67 67 414 414
1879 Chatcull Brook Severn Trent Water 84 6 413 138
1880 River Arrow Dwr Cymru Welsh Water 102 -39 413 80
1881 Howey Brook Dwr Cymru Welsh Water 64 -22 413 -445
1882 River Clywedog Dwr Cymru Welsh Water 138 -12 413 -318
1883 Gibbs Brook Southern Water 47 5 411 -61
1884 Unnamed Drain To Ebbw Fach Dwr Cymru Welsh Water 125 31 411 47
1885 Nant-Y-Fendrod Dwr Cymru Welsh Water 84 -8 411 -70
1886 Wotton Brook Anglian Water 45 -16 411 -220
1887 Loughor Dwr Cymru Welsh Water 79 10 411 166
1888 Scrase Stream Southern Water 72 2 410 20
1889 Hogwell Sewer Southern Water 34 3 410 63
1890 Estuary Dwr Cymru Welsh Water 140 1 410 92
1891 Culverted Mill Beck Yorkshire Water 56 -39 406 -283
1892 Wash Estuary Anglian Water 45 -10 405 62
1893 Coggins Mill Stream Southern Water 47 5 405 -27
1894 Beggars Reach Daugleddau Dwr Cymru Welsh Water 51 25 404 147
1895 Marthall Brook United Utilities 59 -6 404 40
1896 Jump Valley Stream Yorkshire Water 160 -12 404 -89
1897 Stanningf'D R Lark Anglian Water 32 6 403 207
1898 Farnley Wood Beck Yorkshire Water 174 -20 403 -60
1899 Easton Brook River Welland Anglian Water 64 31 402 223
1900 Pillmawr Creek Dwr Cymru Welsh Water 126 -40 402 48
1901 Harpers Brook, River Nene Anglian Water 45 24 401 258
1902 Denton Brook Via Sws United Utilities 172 -23 401 44
1903 Beck Yorkshire Water 61 11 401 61
1904 Pennys Brook Anglian Water 24 -18 401 -265
1905 Colliers Brook Severn Trent Water 32 21 400 269
1906 Dean Brook R Douglas United Utilities 86 -35 400 -419
1907 Wallsend Burn Estuarine Waters Northumbrian Water 77 -43 399 -552
1908 Broad Ooze, Yealm Estuary South West Water 60 4 398 111
1909 Netherton Brook South West Water 20 -9 398 -113
1910 Old River Tees Northumbrian Water 153 10 398 86
1911 Chinn Brook Severn Trent Water 248 35 398 130
1912 Barton Brook Wessex Water 45 18 397 149
1913 River Lim South West Water 68 -30 396 -558
1914 Portsmouth Harbour Southern Water 193 7 395 -116
1915 Claypole Drain South Anglian Water 49 -2 395 21
1916 Ingleby Beck Northumbrian Water 37 -8 394 -31
1917 Manor Drain Dwr Cymru Welsh Water 59 21 393 148
1918 River Mimram Thames Water 36 34 393 381
1919 South Delph Anglian Water 29 17 392 158
1920 Nunningham Stream Southern Water 56 -24 392 -632
1921 Lytchett Bay Wessex Water 58 -18 391 -178
1922 To River Roding Thames Water 95 24 391 143
1923 Burry Estuary Dwr Cymru Welsh Water 45 -31 391 -342
1924 River Ogwr Fawr Dwr Cymru Welsh Water 43 -74 391 -1,060
1925 River Hertford Yorkshire Water 67 -113 390 -1,035
1926 Colne Estuary Anglian Water 105 50 390 180
1927 Nant-Bran Dwr Cymru Welsh Water 59 -10 390 -24
1928 Cong Burn Northumbrian Water 79 -57 389 -124
1929 Beck To River Sl Anglian Water 91 86 387 368
1930 Bottom Hall Beck Yorkshire Water 89 -25 387 -397
1931 River Niidd Yorkshire Water 55 -7 387 -182
1932 Prestatyn Gutter Dwr Cymru Welsh Water 115 25 387 -36
1933 Silverstone Brook Anglian Water 41 -1 386 154
1934 Dean Bottom Dike Yorkshire Water 80 6 386 -60
1935 Beechburn Beck Northumbrian Water 84 -84 385 -458
1936 Taff Fechan Dwr Cymru Welsh Water 24 24 385 385
1937 Tidal River Orwell Anglian Water 86 -11 384 -11
1938 Looe River South West Water 114 -132 384 -637
1939 Ling Beck United Utilities 82 -7 383 -59
1940 Boldings Brook, River Arun Southern Water 41 -7 383 -124
1941 Stembridge Brook Dwr Cymru Welsh Water 30 30 383 383
1942 Asby Beck United Utilities 69 -22 382 -152
1943 Glastonbury Mill Stream Wessex Water 36 32 381 355
1944 Pool Brook Severn Trent Water 33 15 381 211
1945 Buckington Drove Wessex Water 48 -6 381 105
1946 Nanceroy Stream South West Water 40 -23 381 -300
1947 River Rye Yorkshire Water 90 -53 380 -871
1948 Longwood Brook Yorkshire Water 187 65 380 84
1949 River Wey/Ockham Mill Stream Thames Water 43 21 380 220
1950 Leapmill Burn Northumbrian Water 110 -29 380 -202
1951 River Leadon Severn Trent Water 166 62 380 224
1952 Various Yorkshire Water 33 -56 379 104
1953 Crow Brook United Utilities 48 -30 379 181
1954 Burton Pidsea Drain Yorkshire Water 35 -19 379 -152
1955 Bull Greave Beck Yorkshire Water 128 -70 378 -339
1956 Navenby Beck Anglian Water 39 25 378 284
1957 Slitten Brook United Utilities 133 -31 377 -149
1958 Nant Y Geifr Dwr Cymru Welsh Water 72 -9 377 -52
1959 Blackwater Est Anglian Water 46 12 376 147
1960 Etchilhampton Water Wessex Water 189 27 376 -3,251
1961 River Kemp Severn Trent Water 34 -89 375 -454
1962 Two S Of River Chidd Southern Water 57 -9 375 -11
1963 Torver Beck United Utilities 68 -35 375 0
1964 Lywood Stream Southern Water 36 0 375 9
1965 Bin Brook Anglian Water 31 -15 374 -344
1966 Mill Brook United Utilities 116 -21 374 18
1967 Langham Drain Yorkshire Water 66 -8 373 305
1968 Medbourne Brook Anglian Water 39 30 373 261
1969 Polbathic Lake South West Water 37 -47 373 -365
1970 Rockcliffe Beck United Utilities 79 3 371 39
1971 Blackburn Brook Yorkshire Water 179 9 370 18
1972 River Dorn Thames Water 44 27 370 305
1973 Goit Via A Culvertedsystem Yorkshire Water 56 11 370 -13
1974 River Madford South West Water 59 -8 369 56
1975 Dennington Beck Yorkshire Water 53 41 368 338
1976 Unnamed Leading To River Cynon Dwr Cymru Welsh Water 70 4 368 129
1977 Ruddle Dyke Severn Trent Water 63 -10 367 -108
1978 Tidal Waters Of River Arun Southern Water 92 2 367 -99
1979 Gill Beck United Utilities 54 -17 366 -88
1980 North Sea And River Esk Yorkshire Water 98 -8 366 26
1981 Morecambe Bay United Utilities 74 -20 366 3
1982 River Blyth Anglian Water 62 8 365 29
1983 Harley Dike Yorkshire Water 109 -21 364 -168
1984 Broad Bridge Dyke Severn Trent Water 44 3 364 222
1985 Newbridge Brook Dwr Cymru Welsh Water 183 69 364 -654
1986 Rookery Brook Kidsgrove S United Utilities 57 34 363 195
1987 Chapman Beck Northumbrian Water 53 -11 363 131
1988 Sutton Harbour Via Sws South West Water 70 7 362 41
1989 Smithy Brook Severn Trent Water 71 -11 362 -67
1990 Tidal River Exe South West Water 45 16 361 122
1991 Nant Y Aber Dwr Cymru Welsh Water 81 -20 361 6
1992 Towy Dwr Cymru Welsh Water 136 -12 361 -286
1993 River Great Ouse/River Ouzel Anglian Water 30 22 361 287
1994 River Glem Anglian Water 21 -13 360 -204
1995 River Batherm South West Water 35 -29 359 -347
1996 Aberdare Canal Dwr Cymru Welsh Water 107 -9 359 0
1997 Dorchester Mill Stream Wessex Water 43 -22 359 -265
1998 Millbrook Lake South West Water 27 21 359 328
1999 Steeley Burn Northumbrian Water 68 -60 359 -795
2000 R Dove Anglian Water 40 -1 359 -34
2001 Running Furrows Drain River Wi Anglian Water 50 45 358 316
2002 Pitty Beck Yorkshire Water 90 -9 358 58
2003 Seven Yorkshire Water 35 -7 358 -28
2004 Stainsacre Beck Yorkshire Water 71 13 358 115
2005 Sywell Reservoir Anglian Water 33 -14 358 209
2006 Littlestone Sewer Southern Water 24 -19 357 -478
2007 Unnamed Watercourse Wessex Water 31 23 357 305
2008 Warmley Brook Via Sws Wessex Water 265 -106 357 -113
2009 River Neath Via Surface Water Sewer Dwr Cymru Welsh Water 80 -12 356 101
2010 Badnam Creek Southern Water 58 1 356 15
2011 Witcham Catchwater River Ouse Anglian Water 31 -40 356 -732
2012 Rainton Burn Northumbrian Water 143 -24 355 -51
2013 Wear Estuary Northumbrian Water 95 -12 355 89
2014 Croeserw Brook Dwr Cymru Welsh Water 39 18 355 287
2015 Holland Brook Anglian Water 71 34 355 287
2016 Norton Beck Yorkshire Water 58 -2 354 39
2017 Unnamed River Burn Northumbrian Water 79 -12 354 -63
2018 Un Tingewick Br Anglian Water 35 -1 354 106
2019 Beach Ditch Anglian Water 25 -1 353 15
2020 Weeton Beck Yorkshire Water 50 -17 353 -236
2021 Ham Brook Severn Trent Water 47 0 353 -227
2022 Stoford Brook Wessex Water 50 2 352 -6
2023 Grantham Canal Anglian Water 51 8 352 46
2024 River Bourne Southern Water 48 2 352 66
2025 Priest Burn Northumbrian Water 68 -25 352 -170
2026 Danford Brook Severn Trent Water 77 30 351 -344
2027 Caerfanell Dwr Cymru Welsh Water 36 -40 350 -290
2028 Stannets Creek Brook Anglian Water 28 -6 350 41
2029 Ings Beck Yorkshire Water 64 39 349 335
2030 Medway Estaury Southern Water 84 2 348 21
2031 Unnamed River Trent Severn Trent Water 18 8 348 330
2032 Teign Estuary South West Water 99 -47 348 2
2033 River Tweed Estuary Northumbrian Water 126 18 347 91
2034 Un River Calder United Utilities 126 -5 347 -62
2035 Barkby Brook Severn Trent Water 75 3 347 85
2036 South Drain Wessex Water 76 11 346 128
2037 Coop House Dene Burn Northumbrian Water 42 -20 346 -81
2038 Milton Brook United Utilities 64 27 345 149
2039 Culworth Brook Thames Water 48 37 345 320
2040 Tanner Hole Brook United Utilities 76 -24 345 -195
2041 Didgley Brook Severn Trent Water 52 1 345 30
2042 Rodge Brook Southern Water 37 -17 345 -237
2043 Pillmawr Creek, River Usk Dwr Cymru Welsh Water 62 13 343 123
2044 River Hodder United Utilities 42 4 343 273
2045 Ouse Gill Beck Yorkshire Water 121 83 343 217
2046 Biggin Brook Severn Trent Water 54 -14 342 -70
2047 River Blaen-Y-Cae Dwr Cymru Welsh Water 83 19 342 138
2048 West Looe River South West Water 118 -247 342 -371
2049 Of Kings Moor Main Drain Wessex Water 29 6 342 96
2050 South Forty Foot Drain Anglian Water 48 8 341 176
2051 Nant Morlais Dwr Cymru Welsh Water 78 8 341 212
2052 Watton Brook Anglian Water 28 8 340 83
2053 Saltwell Gill Northumbrian Water 71 -31 340 -154
2054 River Can Anglian Water 80 66 340 74
2055 Graveney Thames Water 175 -2 340 60
2056 Leigh Stream Wessex Water 35 -3 339 43
2057 Sister Beck Yorkshire Water 38 -4 339 25
2058 Arrowe Brook United Utilities 123 -204 339 -3,438
2059 River Roddlesworth United Utilities 40 -13 339 -42
2060 Derry Brook Wessex Water 45 -35 338 -805
2061 Haven Drain Anglian Water 43 -50 338 -549
2062 River Windrush Thames Water 25 25 338 338
2063 Solway Firth Estuarine Wt United Utilities 62 -7 337 60
2064 Hyndburn Brook United Utilities 176 -53 337 -410
2065 Marley Gap Brook Anglian Water 38 9 337 52
2066 Of Gwendraeth Fach Dwr Cymru Welsh Water 71 71 337 337
2067 River Dysynni Dwr Cymru Welsh Water 78 -15 337 -190
2068 Skittergate Gutter Yorkshire Water 78 21 336 78
2069 Spittal Beck Yorkshire Water 41 0 336 23
2070 Slutwell Stream Severn Trent Water 94 8 336 -426
2071 Langley Burn Northumbrian Water 50 -3 335 -19
2072 Dwr Ial Dwr Cymru Welsh Water 66 -18 335 -82
2073 Crane Brook Severn Trent Water 41 8 334 45
2074 Pinch Beck Yorkshire Water 70 -23 333 81
2075 Brierdene Burn Northumbrian Water 68 -6 332 -10
2076 River Menahyl South West Water 48 0 332 216
2077 Castle Pill Dwr Cymru Welsh Water 171 24 331 75
2078 Un River Ouzel Anglian Water 25 13 331 225
2079 Criddell Stream Southern Water 49 -5 331 -211
2080 Emm Brook Thames Water 42 12 331 157
2081 Scots Brook Severn Trent Water 71 -1 331 36
2082 Shirtcliff Brook Yorkshire Water 116 -19 330 -93
2083 Burroughs Bank Brook Severn Trent Water 37 17 330 177
2084 Pytchley Brook Anglian Water 78 73 330 326
2085 River Eden Via Sws United Utilities 82 -8 329 -153
2086 Riber Ellen United Utilities 122 13 329 -2
2087 Wroxall Stream Southern Water 71 23 328 67
2088 River Kenfig Dwr Cymru Welsh Water 42 2 328 -68
2089 Skinningrove Beck Northumbrian Water 58 6 328 92
2090 River Pont Northumbrian Water 51 1 327 27
2091 Foulsham Beck River Wensum Anglian Water 25 17 327 267
2092 Scotch Brook Severn Trent Water 134 -19 327 82
2093 Tidal Thames Thames Water 148 -6 326 46
2094 River Wnion Dwr Cymru Welsh Water 97 -56 326 -1,106
2095 Shonks Brook Thames Water 33 -11 326 -60
2096 Pipers Hill Drain River Great Anglian Water 53 18 326 216
2097 Hemp Dike Yorkshire Water 67 4 325 -13
2098 Barnaby Pil Dwr Cymru Welsh Water 29 -15 325 -323
2099 Don Yorkshire Water 157 24 325 -40
2100 River Bain Yorkshire Water 77 12 325 31
2101 Stocksfield Burn Northumbrian Water 70 -6 324 3
2102 Chacombe Brook Thames Water 51 22 324 256
2103 Alum Beck Leven Catchment Northumbrian Water 93 -12 324 116
2104 River Tiddy South West Water 34 -1 323 -9
2105 Doddiscombsleigh Stream South West Water 61 -14 322 -178
2106 River Caerfanell Dwr Cymru Welsh Water 75 75 322 322
2107 Stream River Great Ouse Anglian Water 38 17 321 278
2108 Of Little Dart River South West Water 77 -1 320 -72
2109 Wear, Northumbrian Water 104 -25 320 -65
2110 River Orwell Anglian Water 193 53 320 130
2111 Redhill Brook Thames Water 26 26 319 319
2112 Elphin Beck Yorkshire Water 90 14 319 90
2113 Drayton Drain Wessex Water 31 17 319 182
2114 Trub Brook River Irwell United Utilities 47 -76 319 -1,017
2115 Burton Stather Drain Severn Trent Water 77 -33 319 -41
2116 River Dun Thames Water 28 16 318 222
2117 Dalton Burn Northumbrian Water 37 -11 317 -76
2118 Clifton Beck Yorkshire Water 110 -48 317 -444
2119 Newton Brook United Utilities 97 -227 317 -3,347
2120 River Biss Via Sws Wessex Water 45 12 317 156
2121 Rhondda River Dwr Cymru Welsh Water 123 7 316 111
2122 Potwell Dyke Severn Trent Water 99 5 315 66
2123 Millwood Brook Severn Trent Water 89 -24 314 98
2124 River Hertford Via Ditch Yorkshire Water 35 30 314 303
2125 Thurnscoe Dike Yorkshire Water 81 -49 314 -442
2126 Blaen Bran Brook Dwr Cymru Welsh Water 57 -31 313 -312
2127 Nant Y Milwr Via Surface Water Sewer And An Unnamed Watercourse Dwr Cymru Welsh Water 53 -8 313 51
2128 Rhoden Stream Southern Water 39 1 313 74
2129 Millbridge Brook Anglian Water 20 -1 313 2
2130 Stoulton Brook Severn Trent Water 45 0 312 22
2131 S W Sewer Dwr Cymru Welsh Water 58 15 312 135
2132 Nant Mwrwg Dwr Cymru Welsh Water 75 -26 312 -426
2133 Sledbrook Dyke Yorkshire Water 59 -18 312 -316
2134 Hebden Water Yorkshire Water 75 -115 311 -640
2135 Aire Yorkshire Water 112 -71 311 -240
2136 Uplowman Stream South West Water 28 -20 310 -481
2137 Cragg Brook Yorkshire Water 44 -22 310 -230
2138 Kyo Burn Northumbrian Water 137 -56 310 -139
2139 Sow Brook Severn Trent Water 46 -5 310 59
2140 River Carrog Dwr Cymru Welsh Water 87 -7 309 -36
2141 River Jordan River Welland Anglian Water 28 28 309 309
2142 Sankey Canal United Utilities 55 -21 309 -12
2143 Kings Sutton Stream Thames Water 36 20 309 271
2144 Seamer Drain Yorkshire Water 28 -18 309 -300
2145 Upper Clydach River Dwr Cymru Welsh Water 122 -33 309 -12
2146 Bentley Mill Stream Yorkshire Water 91 91 309 309
2147 Mar Dyke West Anglian Water 34 6 308 94
2148 Rearsby Brook Severn Trent Water 36 4 308 18
2149 River Trym Wessex Water 123 -16 308 46
2150 Milford Haven Dwr Cymru Welsh Water 147 25 308 -42
2151 Medway Estuary Southern Water 111 4 307 -108
2152 Speet Gill United Utilities 53 2 307 25
2153 Derrings Beck Yorkshire Water 79 0 306 14
2154 Welton Bank Drain Yorkshire Water 54 0 306 126
2155 Balderton Brook Dwr Cymru Welsh Water 109 28 306 -20
2156 Lysdon Burn Northumbrian Water 33 -12 305 -52
2157 Bumpstead Brook Anglian Water 27 -6 305 -40
2158 Tidal River Colne Anglian Water 89 -15 305 28
2159 River Lynher Estuary South West Water 72 -62 304 -288
2160 Scarrow Beck Anglian Water 36 4 304 123
2161 Waylen Brook Wessex Water 36 11 304 122
2162 Unnamed Houghwell Burn Northumbrian Water 41 -23 304 -221
2163 Scothern Fen Drain Anglian Water 23 -55 304 -447
2164 Un-Named Of Broughton Br Dwr Cymru Welsh Water 92 6 303 94
2165 Oak Hill Clough Yorkshire Water 100 73 302 286
2166 Boathouse Sluice United Utilities 25 0 302 -26
2167 Herrington Burn Northumbrian Water 113 -79 302 -496
2168 Elmley Castle Brook Severn Trent Water 32 17 302 175
2169 Dean Brook Trid Of R Douglas United Utilities 76 -33 302 -159
2170 River Wolf South West Water 37 1 302 36
2171 Culverted Knavesmire Beck Yorkshire Water 30 -17 302 -132
2172 Queensferry Ditch Dwr Cymru Welsh Water 38 10 302 135
2173 Blencarn Beck United Utilities 44 30 301 170
2174 Saltmill Creek South West Water 87 39 301 150
2175 River Ribble Via Chain Culvert United Utilities 137 137 301 301
2176 Ram'S Brook United Utilities 60 -2 301 149
2177 Semmington Brook Wessex Water 22 1 300 35
2178 Ruskington Beck Anglian Water 43 38 299 288
2179 Tan Lan Drains Dwr Cymru Welsh Water 26 22 299 254
2180 Hurns Gutter Yorkshire Water 77 -27 299 -201
2181 Loadpit Beck Yorkshire Water 91 -29 298 -132
2182 Hill Hall Dyke Anglian Water 38 34 298 256
2183 A Stormwater Ditch Wessex Water 68 10 298 78
2184 Aberystwyth Harbour Dwr Cymru Welsh Water 45 -29 298 49
2185 River Erme Estuary South West Water 103 -55 297 -557
2186 Dimore Brook Severn Trent Water 40 16 297 182
2187 River Tawe Esturial Waters Dwr Cymru Welsh Water 29 29 297 297
2188 Littleton Brook Severn Trent Water 37 14 296 -104
2189 Pow Maughan Beck United Utilities 73 -15 296 -153
2190 Bothal Burn Northumbrian Water 60 0 296 113
2191 Ellen Brook United Utilities 53 -51 296 -245
2192 Halewood Brook United Utilities 53 -16 295 39
2193 Black Brook Severn Trent Water 52 -15 295 -12
2194 Bickleton Stream South West Water 27 1 295 -40
2195 Dale Brook Severn Trent Water 53 -28 295 8
2196 Lambrook Brook Wessex Water 83 5 295 -100
2197 Latchford Brook Thames Water 30 -6 295 -10
2198 Saltburn Gill Northumbrian Water 43 18 294 67
2199 Hartley Burn Northumbrian Water 64 -23 293 -136
2200 Shuttern Brook South West Water 98 -51 293 -811
2201 Royal Military Canal Southern Water 31 -24 293 -546
2202 Intwood Stream River Yare Anglian Water 20 3 293 60
2203 Stanton Brook River We Anglian Water 54 -12 293 97
2204 Hobhole Drain Anglian Water 32 2 293 115
2205 Receiving Water Not Defined Severn Trent Water 93 -8 292 -42
2206 River Lodden Wessex Water 32 3 292 14
2207 Culvert Leading To River Lwyd Dwr Cymru Welsh Water 51 -37 292 -62
2208 Low Spen Burn Northumbrian Water 51 -3 292 66
2209 Knelle Petty Sewer Southern Water 30 -5 291 -35
2210 Great Langdale Beck United Utilities 32 -9 291 -704
2211 River Till River Witham Anglian Water 54 -40 291 -834
2212 River Ramsey Anglian Water 24 -20 291 -34
2213 Penmire Brook Severn Trent Water 61 6 290 93
2214 Lower River Axe Wessex Water 32 23 289 215
2215 Great Common Drain Yorkshire Water 47 -23 289 -302
2216 River Glenderamackin United Utilities 78 -8 288 -97
2217 Rud Beck Yorkshire Water 60 4 288 86
2218 Colletts Brook Severn Trent Water 44 9 288 104
2219 Hamsteels Beck Northumbrian Water 45 -17 288 -365
2220 Loughor - Conf With Marlais To Conf With Aman Dwr Cymru Welsh Water 55 -18 287 -28
2221 Stoney Rock Beck Yorkshire Water 150 -12 287 -86
2222 Un To River Bran Dwr Cymru Welsh Water 152 -26 286 -326
2223 Wiske/Swale Yorkshire Water 105 32 286 145
2224 Brickhill Brook River Ouzel Anglian Water 35 22 286 256
2225 Unnamed Watercourse South West Water 112 -95 285 -771
2226 Unnamed W/C Dwr Cymru Welsh Water 205 -62 285 -3,921
2227 Hazeley Brook United Utilities 84 6 285 129
2228 Surface Water Drain To Chyandr South West Water 96 -16 285 -36
2229 Three Rivers Severn Trent Water 44 27 284 206
2230 Bradgate Brook Severn Trent Water 39 -1 284 75
2231 Pill Creek South West Water 23 -23 284 -153
2232 Rhyd Hir Dwr Cymru Welsh Water 27 27 284 284
2233 River Seven Yorkshire Water 36 -27 284 -144
2234 Nant Hir Dwr Cymru Welsh Water 71 -19 283 -77
2235 Close Brook R Douglas United Utilities 31 -44 283 -424
2236 River Hyndburn United Utilities 84 -41 283 -295
2237 River Greta Northumbrian Water 57 -6 282 -127
2238 Cradlebridge Sewer Southern Water 34 -16 281 -134
2239 Sike Yorkshire Water 69 -18 281 -109
2240 F/E-River Avon, Cso-River Biss Wessex Water 31 14 281 156
2241 River Tamar Viasws South West Water 28 8 281 42
2242 Blanksmill Creek South West Water 45 9 281 92
2243 Tweed Estuary Northumbrian Water 127 6 280 51
2244 Clywedog Dwr Cymru Welsh Water 46 -23 280 -109
2245 Denton Brook Anglian Water 35 21 280 -23
2246 Bedford Brook United Utilities 128 -6 279 -219
2247 A Stream On Nw Boundary Of The Site Dwr Cymru Welsh Water 62 -29 278 -134
2248 River Mydr Dwr Cymru Welsh Water 59 59 278 278
2249 Gipton Beck Yorkshire Water 187 -71 277 -156
2250 Millstream Wessex Water 33 10 277 70
2251 Maplehurst Stream Southern Water 25 1 277 101
2252 Cromford Canal Severn Trent Water 64 -43 277 -268
2253 Calder Yorkshire Water 119 57 277 200
2254 Leeds/Liverpool Canal United Utilities 28 12 276 141
2255 Marrs Beck Yorkshire Water 35 29 276 262
2256 River Blakewater V Sws United Utilities 133 2 276 -51
2257 Dorton Brook Thames Water 54 8 276 75
2258 Winterton Holmes Dr Anglian Water 22 -53 276 -362
2259 Alyn Dwr Cymru Welsh Water 121 33 276 72
2260 Sough Dyke Yorkshire Water 112 1 276 -51
2261 Many Brooks United Utilities 117 6 276 -18
2262 River Dyfrdwy Dwr Cymru Welsh Water 54 -25 276 -555
2263 Shires Beck Yorkshire Water 32 -6 276 68
2264 River Ash Thames Water 45 0 275 -30
2265 Unnamed Dyke Anglian Water 28 2 275 -56
2266 River Loxley Yorkshire Water 174 -14 275 -56
2267 Crook Beck, Northumbrian Water 45 -10 275 -42
2268 Sprinkle Pill Dwr Cymru Welsh Water 65 -16 274 -73
2269 New Inn Stream Dwr Cymru Welsh Water 31 -20 273 -236
2270 Surface Water Sewer South West Water 68 -12 273 -28
2271 Popping Beck United Utilities 52 -12 273 -156
2272 Princethorpe Brook Severn Trent Water 34 -18 272 -348
2273 Sandy Haven Pill Dwr Cymru Welsh Water 70 -59 272 -552
2274 Black Horse Drain Anglian Water 32 23 272 183
2275 Alun Dwr Cymru Welsh Water 20 6 272 211
2276 River Vyrnwy Severn Trent Water 41 17 271 9
2277 Sidings Drain Yorkshire Water 73 -9 271 -680
2278 River Swarbourn Severn Trent Water 42 27 270 199
2279 Wooler Water Northumbrian Water 124 -28 270 -49
2280 Unnamed Cow Lane Beck Yorkshire Water 44 -27 270 -542
2281 Polser Brook Severn Trent Water 50 -9 270 -32
2282 Dockerel Brook Anglian Water 34 15 270 208
2283 Otterham Creek Southern Water 168 23 269 122
2284 Nant Pwntan Dwr Cymru Welsh Water 20 -33 269 -491
2285 Unknown South Of Dyke Dr Anglian Water 24 22 269 253
2286 Greasbrough Dyke Yorkshire Water 58 -17 269 -57
2287 Lincoln Brook Severn Trent Water 29 17 269 128
2288 Sandmead Rhyne Wessex Water 27 -5 268 -67
2289 Acklam Beck Yorkshire Water 35 7 268 13
2290 River Flit Anglian Water 66 55 268 254
2291 Mans Brook Thames Water 35 -6 268 -59
2292 Smawith Dike Yorkshire Water 26 -1 267 59
2293 Waterloo Road Stream Thames Water 29 29 267 267
2294 Bromers Brook Wessex Water 25 -8 267 -98
2295 Horden Burn Northumbrian Water 81 -5 266 57
2296 Swansell Brook Dwr Cymru Welsh Water 24 -23 266 -335
2297 Mill Stream Severn Trent Water 68 15 266 170
2298 Nant Carn Brook Dwr Cymru Welsh Water 72 1 266 -41
2299 Longbrook South West Water 56 6 265 80
2300 Stromford Brook United Utilities 182 -151 265 -1,437
2301 Dysynni Low Level Drainage Cha Dwr Cymru Welsh Water 68 -15 265 -44
2302 Clvrt Kilnhurst Cut Yorkshire Water 59 -3 264 44
2303 River Rhydhir Dwr Cymru Welsh Water 61 -20 263 -157
2304 Embsay Beck Yorkshire Water 78 12 263 26
2305 East Okement River South West Water 161 21 263 135
2306 Pentrebach Brook Dwr Cymru Welsh Water 73 -15 263 1
2307 Catchwater Drain Anglian Water 49 30 263 146
2308 Bidston Stream United Utilities 132 -20 262 -454
2309 Longford Brk Bent Lanes Brk United Utilities 51 -25 262 -30
2310 Culv'D Hoyle House Brk Yorkshire Water 86 18 261 -28
2311 Nant Llynfell Dwr Cymru Welsh Water 38 -4 261 105
2312 Celery Sewer River Ouse Southern Water 54 -23 261 -220
2313 Bagley Dyke Yorkshire Water 76 -45 260 -88
2314 Graves Park Beck Yorkshire Water 62 -21 260 -415
2315 Rudbaxton Water Dwr Cymru Welsh Water 41 41 260 260
2316 Scotley Brook South West Water 84 -61 260 -435
2317 Timperley Brook United Utilities 154 -93 259 -267
2318 Dallington Brook Anglian Water 69 68 259 259
2319 Old River Tone Wessex Water 36 -28 259 -281
2320 Nant Y Flint Dwr Cymru Welsh Water 36 11 259 9
2321 River Lwyd Via Culvert And Unnamed Watercourse Dwr Cymru Welsh Water 51 12 259 205
2322 Thetford Catchwater Anglian Water 20 17 258 220
2323 Cottages Beck Yorkshire Water 30 2 258 38
2324 Ringshaw Beck Yorkshire Water 82 -4 258 -60
2325 Pitsea Creek Anglian Water 24 0 258 56
2326 Rive Ditch Thames Water 26 18 258 217
2327 Nant Wthan Dwr Cymru Welsh Water 37 -1 258 46
2328 Kessingland Hundred River Anglian Water 20 -18 257 -407
2329 Woodplumpton Brook United Utilities 35 -18 257 -74
2330 Owler Beck Yorkshire Water 116 -34 257 -117
2331 Rains Brook Severn Trent Water 37 2 257 -181
2332 Of Heads Hope Burn Northumbrian Water 68 -15 257 -85
2333 Framfield Stream Southern Water 46 -11 257 -169
2334 Ray/Ditch Thames Water 25 16 257 203
2335 River Briant Dwr Cymru Welsh Water 42 -3 256 -136
2336 Harrow Brook Severn Trent Water 17 -8 254 218
2337 River Tweed Severn Trent Water 37 13 254 100
2338 Kilmersdon Stream Wessex Water 54 15 254 88
2339 Avon Lwyd Dwr Cymru Welsh Water 51 -5 253 78
2340 Mellor Brook United Utilities 100 -2 253 -37
2341 Corston Brook Wessex Water 52 -13 252 3
2342 Angarrack Strean South West Water 73 19 252 125
2343 Loxford Water Thames Water 58 3 252 81
2344 Eaves Brook United Utilities 83 -2 252 -6
2345 Whitecliff Beck Northumbrian Water 29 2 252 76
2346 River Somer Wessex Water 20 -3 251 -29
2347 River Irthing Via Sws United Utilities 85 2 251 -128
2348 Doverte Brook Wessex Water 31 0 251 -70
2349 Unnamed Syd Brook United Utilities 31 -20 251 -109
2350 Helliers Stream Via Sws Wessex Water 29 13 251 141
2351 Albrighton Brook Severn Trent Water 45 20 251 204
2352 River Goyt Via Sws United Utilities 54 -36 250 65
2353 Hatchet Stream Southern Water 21 -14 250 -239
2354 Solway Firth At Silloth Bay United Utilities 36 10 250 104
2355 Watton Beck Yorkshire Water 36 -47 250 -880
2356 River Dee United Utilities 95 5 249 23
2357 Micker Brook United Utilities 64 -5 249 117
2358 Lower Clydach River Dwr Cymru Welsh Water 91 6 249 -31
2359 Old Mill Creek Via Sws South West Water 36 15 248 114
2360 Callow Brook Severn Trent Water 106 20 248 124
2361 Pulford Brook Dwr Cymru Welsh Water 61 19 248 131
2362 River Rheidol Dwr Cymru Welsh Water 38 -20 248 41
2363 Fenay Beck Yorkshire Water 74 -46 248 -105
2364 River Bela United Utilities 27 -61 247 -1,500
2365 North Beck Severn Trent Water 40 -12 247 -142
2366 Mill Shaw Beck Yorkshire Water 92 -35 247 -112
2367 Tranmire Goit Yorkshire Water 74 -1 247 6
2368 North Dene Burn Northumbrian Water 67 13 246 144
2369 Malago Wessex Water 93 21 246 41
2370 Coldbrook Dwr Cymru Welsh Water 93 27 246 -16
2371 Weel Town Drain Yorkshire Water 26 -2 246 -37
2372 Sneyd Brook Severn Trent Water 83 18 246 108
2373 River Croco United Utilities 83 -24 246 -14
2374 Bowbridge Beck Yorkshire Water 50 50 245 245
2375 Overflow Brook Thames Water 51 31 245 195
2376 Kent Estuary United Utilities 48 -11 245 -144
2377 Lavenham Brook River Brett Anglian Water 19 -26 245 -464
2378 Worsley Brook United Utilities 42 -29 245 -101
2379 Houndhill Brook Severn Trent Water 27 13 244 201
2380 Chilcote Brook Severn Trent Water 80 -21 244 -23
2381 Waterfall Beck Northumbrian Water 58 9 244 8
2382 Carnon River South West Water 74 -305 244 -1,236
2383 Borrow Or Ray Creek Anglian Water 23 -27 244 -384
2384 R Nug Dwr Cymru Welsh Water 37 37 244 244
2385 Holme Beck Northumbrian Water 68 -9 244 17
2386 Mere Burn Northumbrian Water 33 -4 243 -71
2387 Wrongway Brook United Utilities 27 -4 243 -81
2388 Butts Beck United Utilities 25 1 243 238
2389 River Meese Severn Trent Water 47 12 243 145
2390 Key Brook To R Stour Wessex Water 66 -3 243 -5
2391 Nant Y Wrach Dwr Cymru Welsh Water 73 -8 243 -232
2392 Stonley Goat Dyke Yorkshire Water 25 -1 243 12
2393 Mill Stream Wessex Water 66 -21 242 -121
2394 Dalton Brook Yorkshire Water 44 6 242 30
2395 Lady Beck Yorkshire Water 73 25 242 165
2396 Whixley Cut Yorkshire Water 93 84 242 235
2397 River Cefni Dwr Cymru Welsh Water 57 -57 241 16
2398 Ching Brook Thames Water 56 -11 241 53
2399 Sence Brook Severn Trent Water 41 10 241 107
2400 Lambrok Stream Wessex Water 36 19 240 125
2401 Stream Dike Yorkshire Water 34 -3 240 25
2402 Wagg Rhyne Wessex Water 17 -28 240 -535
2403 Dike River Witham Anglian Water 27 23 240 229
2404 Chevington Burn Northumbrian Water 25 5 239 69
2405 Holme And Ainderby Beck Yorkshire Water 34 5 239 -78
2406 River Ebbw Fach Dwr Cymru Welsh Water 65 3 239 -37
2407 Etwall Brook Severn Trent Water 34 -41 239 -996
2408 Longton Brook United Utilities 39 -3 239 -38
2409 River Avill Wessex Water 138 -19 239 -119
2410 Clvrt Gransmoor Drain Yorkshire Water 44 -31 239 -295
2411 New Dike Yorkshire Water 65 50 238 192
2412 Matty Beck United Utilities 25 -83 238 -1,553
2413 Fiddington Book Wessex Water 33 6 238 67
2414 Backstone Beck River Derwe Northumbrian Water 35 11 237 33
2415 Unnamed Drain Anglian Water 50 20 237 90
2416 Carrs Northumbrian Water 55 -8 237 -137
2417 River Til Anglian Water 29 11 237 159
2418 Local Stream South West Water 162 -22 237 -106
2419 Bodelwyddan Drain Dwr Cymru Welsh Water 41 16 237 146
2420 Calow Brook Yorkshire Water 68 -9 236 -19
2421 Clvrt Sec Of Sudden Brook United Utilities 70 -26 236 -134
2422 Chapel Beck Northumbrian Water 61 37 236 149
2423 River Aman Dwr Cymru Welsh Water 90 12 236 44
2424 Colliergate Beck United Utilities 28 -2 236 -170
2425 River Clettwr Dwr Cymru Welsh Water 45 -18 236 -98
2426 Sturton Beck River Till Anglian Water 32 -31 235 -474
2427 Dovenby Beck United Utilities 58 -23 235 -94
2428 Stewards Brook United Utilities 81 5 235 19
2429 Squires Gate Lane Dyke United Utilities 94 94 234 234
2430 Main Drain River Hertford Yorkshire Water 68 -8 234 19
2431 Lynmouth Bay South West Water 56 0 234 21
2432 Stock Beck United Utilities 29 -11 233 -179
2433 Wells Brook Thames Water 66 2 233 130
2434 U Creswell River Dwr Cymru Welsh Water 29 -21 233 -301
2435 Bristol Channel Dwr Cymru Welsh Water 51 6 233 62
2436 Muster Brook Yorkshire Water 65 -70 233 -1,466
2437 Applethwaite Gill United Utilities 68 -4 232 -319
2438 Grunty Fen Drain Anglian Water 40 9 232 4
2439 Hockley Brook Severn Trent Water 279 -98 231 -297
2440 Virley Brook Salcottcreek Anglian Water 26 -14 231 -111
2441 River Tonge United Utilities 186 -156 231 -1,771
2442 Toll House Stream Thames Water 26 13 231 169
2443 Whitsun Brook Severn Trent Water 45 -20 230 73
2444 Old Fleet Drain Louth Canal N Anglian Water 28 -7 230 -205
2445 Salmon Brook Thames Water 26 8 230 120
2446 Dagenham Brook Thames Water 43 8 230 120
2447 Ludgvan Stream South West Water 33 4 230 170
2448 Oakenshaw Beck Yorkshire Water 57 -31 230 -224
2449 Wiza Beck United Utilities 144 26 230 60
2450 New Parks Beck Yorkshire Water 26 -5 230 -290
2451 Shropshire Brook Severn Trent Water 49 19 229 89
2452 Wyaston Brook Severn Trent Water 116 109 229 226
2453 Savick Bk, Ribble Est United Utilities 48 8 228 123
2454 Langley Brook Severn Trent Water 65 29 228 89
2455 Mobberley Brook Severn Trent Water 45 -1 228 54
2456 Pipe To River Dee Dwr Cymru Welsh Water 28 28 228 228
2457 Stanwell Brook Anglian Water 32 32 228 228
2458 Monksilver Stream Wessex Water 29 -1 228 -219
2459 Millingford Brook United Utilities 129 -67 228 -142
2460 Mayland Creek River Blackwater Anglian Water 50 -24 228 -316
2461 Norton Brook Grand Union Canal Anglian Water 119 44 228 122
2462 River Nug Dwr Cymru Welsh Water 47 -88 228 -635
2463 River Spodden, River Roch United Utilities 37 -24 227 -270
2464 River Brake Dwr Cymru Welsh Water 101 -27 227 -97
2465 Pill River Wessex Water 34 -3 227 17
2466 Higher Leat Via Sw Sewer South West Water 93 -58 226 -113
2467 Cowbridge Beck Northumbrian Water 20 -8 226 7
2468 River Teign Via S/W Sewer South West Water 32 -14 226 -109
2469 Corn Brook Via Sws United Utilities 36 15 226 203
2470 Loggerheads Brook Severn Trent Water 23 17 226 202
2471 Ogle Letch Northumbrian Water 15 -13 226 -232
2472 Pont Shan Brook Dwr Cymru Welsh Water 85 44 226 63
2473 River Tawd Via Sws United Utilities 108 -14 226 15
2474 King Lane Beck Yorkshire Water 73 9 226 45
2475 Saredon Brook, Ridings Brook Severn Trent Water 34 13 226 106
2476 Nassington Brook Anglian Water 16 11 226 207
2477 Black Brook Dwr Cymru Welsh Water 67 22 225 23
2478 Dow Brook Frecklton Pl United Utilities 74 13 225 76
2479 Todd Hole Dike/Mill Stream Yorkshire Water 79 -10 225 14
2480 Gore Burn Northumbrian Water 34 16 225 126
2481 Shyte Brook Severn Trent Water 76 26 224 92
2482 Bishopton Beck Northumbrian Water 82 -37 224 -14
2483 Bailey Brook Severn Trent Water 130 -14 224 -15
2484 Were Via Sws Wessex Water 54 9 224 82
2485 Unnamed Of River Browney Northumbrian Water 41 -14 224 -92
2486 Dene Burn Northumbrian Water 131 3 224 -17
2487 Kyd Brook Thames Water 53 8 223 75
2488 Hampshire Avon Wessex Water 63 8 222 9
2489 Un-Named River Nene Anglian Water 46 45 222 214
2490 Gunnerton Burn Northumbrian Water 72 3 222 9
2491 Weymouth Harbour Wessex Water 106 14 222 150
2492 Levisham Beck Yorkshire Water 85 -7 221 2
2493 Bogart Brook United Utilities 23 23 221 221
2494 River Chor United Utilities 141 3 221 -24
2495 Danby Beck Yorkshire Water 59 -70 220 -210
2496 Rivacre Brook, Mersey United Utilities 51 44 219 204
2497 Ackhurst Brook R Douglas United Utilities 81 -27 219 -193
2498 Twyford Brook Severn Trent Water 44 13 219 100
2499 Stour Brook Anglian Water 17 6 219 114
2500 Bagley Dike Yorkshire Water 91 -24 218 -36
2501 Meanwood Beck Yorkshire Water 135 24 217 79
2502 Hornsmill Brook United Utilities 37 3 217 101
2503 River Ebbw Fawr Dwr Cymru Welsh Water 61 6 217 29
2504 Ell Brook Severn Trent Water 45 3 217 -265
2505 South Kelsey Drain Anglian Water 49 46 217 193
2506 West Glen Rir Anglian Water 15 15 217 217
2507 River Idle/Maun/Carr Dyke Severn Trent Water 29 -14 216 -146
2508 Mickle Ing Beck Yorkshire Water 110 -34 216 -174
2509 Rowlington Burn Northumbrian Water 57 2 216 40
2510 Nevern River Dwr Cymru Welsh Water 19 19 215 215
2511 Sow Brook United Utilities 20 6 215 82
2512 River Team Saline Estuary Northumbrian Water 40 -16 215 -71
2513 River Weycock Dwr Cymru Welsh Water 26 4 215 48
2514 Somerby Brook Severn Trent Water 58 20 214 84
2515 Caldwell Burn Northumbrian Water 20 -10 214 -169
2516 Hey Cop Drain, River Alt United Utilities 56 -23 214 -462
2517 New Wryde Drain Anglian Water 39 1 214 36
2518 River Medina Estuary Southern Water 85 26 214 111
2519 River Ogwry Dwr Cymru Welsh Water 17 17 213 213
2520 Tregoyd Brook Dwr Cymru Welsh Water 47 4 213 -37
2521 Unnamed Stream To River Medway Southern Water 41 13 213 120
2522 Tidal River Wyre United Utilities 49 -1 213 44
2523 High Royds Beck Yorkshire Water 91 -13 212 -2
2524 Clifton Brook Thames Water 36 23 212 170
2525 Rhymney R - Source To Conf Nant Bargod Rhymni Dwr Cymru Welsh Water 86 -53 212 -758
2526 Embleton Burn Northumbrian Water 68 38 212 79
2527 Clvrt'D Section Knuzden Brook United Utilities 54 -16 211 55
2528 Little Buck Beck Anglian Water 47 -21 211 -2
2529 Dawdon Dene Beck Northumbrian Water 41 -19 211 -103
2530 River Eye + Various Brooks Severn Trent Water 26 13 211 85
2531 Anstey Brook Severn Trent Water 34 -21 210 -178
2532 River Pill Wessex Water 24 5 210 65
2533 Grimmer Severn Trent Water 34 -5 210 -2
2534 Loftus Beck Northumbrian Water 39 3 210 61
2535 Cowage Brook, Wessex Water 52 -25 210 -235
2536 Layer Brook Anglian Water 30 -1 210 38
2537 Blackclose Burn Northumbrian Water 30 17 209 160
2538 North End Stream.River Ouse Southern Water 28 -9 209 -76
2539 Cockermere Burn Northumbrian Water 53 -7 208 -20
2540 Parr Brook Via Sws United Utilities 72 -11 208 85
2541 Kinkerdale Beck Northumbrian Water 35 2 208 31
2542 Rainworth Water Severn Trent Water 48 -2 208 25
2543 Long Whatton/Diseworth Brook Severn Trent Water 30 3 208 37
2544 Gains Brook Severn Trent Water 40 -5 207 52
2545 Starston Beck Anglian Water 22 -1 207 -37
2546 Ulley Brook Yorkshire Water 27 -1 207 90
2547 Unnamed Canal To Tywi Estuary Dwr Cymru Welsh Water 61 -16 207 -280
2548 Axe Estuary Wessex Water 24 -2 207 32
2549 Aman R - Source To Conf River Cynon Dwr Cymru Welsh Water 48 41 206 198
2550 Westfield Pill Dwr Cymru Welsh Water 47 -32 206 -18
2551 Huddersfield Broad Can Yorkshire Water 57 -92 206 -720
2552 R Cam Anglian Water 16 13 206 201
2553 Carleton Beck Yorkshire Water 74 7 206 54
2554 River Eitha Dwr Cymru Welsh Water 40 -5 205 49
2555 Frankton Brook Severn Trent Water 24 18 205 193
2556 River Till Northumbrian Water 72 9 205 -64
2557 Pugney'S Drain Yorkshire Water 33 -8 204 -14
2558 Haughley Water Course River Gi Anglian Water 36 0 204 144
2559 Tregaseal Stream South West Water 41 -70 204 -236
2560 Nailstone Brook Severn Trent Water 23 0 204 82
2561 Dauntsey Brook Wessex Water 34 -8 204 -120
2562 Unnamed Dicth/Stream Southern Water 41 8 204 58
2563 Stanley Burn, Northumbrian Water 43 -7 204 -29
2564 Rodbourne Brook Wessex Water 45 11 203 17
2565 Esturial Waters At Rath Dwr Cymru Welsh Water 95 -16 203 -27
2566 Surface Water Sewer Yorkshire Water 20 -3 203 -14
2567 Willow Beck Yorkshire Water 70 -28 203 -17
2568 Bradley Brook Via Sws United Utilities 41 -24 203 -115
2569 River Dart Via Sws South West Water 94 -10 202 -3
2570 Ellerton Brook Severn Trent Water 40 14 202 118
2571 Roman River Anglian Water 30 0 202 21
2572 River Great Stour Southern Water 21 5 202 109
2573 Spath Brook United Utilities 45 -20 202 -1
2574 River Caledffwrd Dwr Cymru Welsh Water 38 -6 201 22
2575 Hatlex Beck United Utilities 25 5 201 69
2576 Threapland Gill United Utilities 56 7 201 60
2577 Little Wilbraham River Anglian Water 27 -26 201 -418
2578 River Kent Estuary, Morecambe Bay United Utilities 47 14 200 175
2579 Yalberton Stream Via Sws South West Water 30 -8 200 -154
2580 River Rother West Southern Water 47 -6 200 -108
2581 Dowlias Brook Dwr Cymru Welsh Water 45 8 199 82
2582 Oakerthorpe Brook Severn Trent Water 65 -22 198 -53
2583 Rhynys Brook Dwr Cymru Welsh Water 85 75 198 187
2584 Ellams Brook, Newton Brook United Utilities 36 -6 198 47
2585 Stonethwaite Beck United Utilities 43 -3 198 -204
2586 Hogsmill River Thames Water 29 -8 198 8
2587 Barsby Brook Severn Trent Water 31 8 198 119
2588 Bull Brook Thames Water 19 2 198 54
2589 Culverted Mackerel Lake Stream Dwr Cymru Welsh Water 46 -52 198 -897
2590 Longnewton Beck Northumbrian Water 49 -14 198 -24
2591 Waller Hill Beck Yorkshire Water 74 4 197 68
2592 Dene Beck Northumbrian Water 62 20 197 30
2593 Easington Drain Yorkshire Water 33 -2 197 36
2594 Yeovil Yeo, Wessex Water 27 1 196 -17
2595 Culverted River Wharfe Yorkshire Water 56 23 196 95
2596 Lowca Beck United Utilities 62 -3 195 85
2597 River Trent Via Beckvalley Cul Severn Trent Water 105 -43 195 -16
2598 Barlow Brook Yorkshire Water 53 -38 195 -201
2599 O Teign Estuary South West Water 66 -2 195 95
2600 South Tyne Northumbrian Water 103 -9 195 -272
2601 Moston Brook United Utilities 45 21 194 180
2602 Cad Brook Wessex Water 20 1 194 -8
2603 Shepley Dike Yorkshire Water 49 -25 194 -180
2604 Helpringham Eau South Forty Fo Anglian Water 17 0 194 26
2605 Newton Beck Yorkshire Water 23 -4 194 -25
2606 Tafarn Helyg Dwr Cymru Welsh Water 33 33 194 194
2607 Rainford Brook United Utilities 96 -66 194 -347
2608 West Beck Yorkshire Water 46 -13 193 -47
2609 Black Brook River Yarrow United Utilities 40 -22 193 -173
2610 Berthin Brook Dwr Cymru Welsh Water 49 13 193 75
2611 Tin River, River Waveney Anglian Water 32 8 192 31
2612 Sherston Avon Wessex Water 83 -12 192 18
2613 Leven Northumbrian Water 31 6 192 85
2614 River Mamog Dwr Cymru Welsh Water 10 10 192 192
2615 Shell Brook, R Mease Severn Trent Water 27 27 191 191
2616 House Carr Dike Yorkshire Water 30 -17 190 -227
2617 Tidal River Bure Anglian Water 138 -63 190 -59
2618 Portbury Ditch Wessex Water 76 10 190 108
2619 Silford Stream South West Water 32 -18 190 -348
2620 Pingle Brook Severn Trent Water 35 12 190 72
2621 Fords Lake Stream Dwr Cymru Welsh Water 31 8 190 50
2622 River Don Via Public Sewer Yorkshire Water 54 -8 189 -104
2623 Esturial Waters Of Inland Sea Dwr Cymru Welsh Water 57 -4 189 -26
2624 River Stour Southern Water 17 5 189 136
2625 Birdforth Beck Yorkshire Water 58 -13 189 74
2626 River Ashburton South West Water 64 0 189 -247
2627 River Cylflymen Dwr Cymru Welsh Water 49 1 188 122
2628 Tidal Estuary Of River Medway Southern Water 100 45 188 113
2629 Culverted Bedlam Dyke Yorkshire Water 31 -21 188 -111
2630 Newton Regis Brook Severn Trent Water 44 -20 188 -48
2631 Culverted Brayton Junction Yorkshire Water 35 -14 188 -79
2632 No Details Yorkshire Water 74 10 188 39
2633 River Gronw Dwr Cymru Welsh Water 71 -41 187 -222
2634 Ten Mile River Anglian Water 56 12 187 77
2635 Park Gate Dike Yorkshire Water 33 -2 187 -36
2636 Moors River Wessex Water 36 14 187 92
2637 White Ash Brook United Utilities 52 -29 187 -85
2638 Hartley Brook Dike Yorkshire Water 71 -8 186 -16
2639 Leys Drain Yorkshire Water 19 -15 186 -139
2640 River Meirchion Dwr Cymru Welsh Water 80 -10 186 15
2641 Ford Green Brook Severn Trent Water 113 16 185 86
2642 Warmley Brook Wessex Water 82 -28 185 -21
2643 Various Sites River Soar Severn Trent Water 23 -3 185 17
2644 Agden Brook United Utilities 22 5 185 113
2645 Carrog Dwr Cymru Welsh Water 76 -18 185 0
2646 Wain Dike Beck Yorkshire Water 47 10 184 40
2647 Tidal Great River Ouse Anglian Water 21 -24 184 -222
2648 Grimley Brook Severn Trent Water 31 -28 184 -320
2649 Arrowe Brook River Birket United Utilities 61 -4 183 49
2650 River Aber Glesyrch Dwr Cymru Welsh Water 20 -19 183 -283
2651 Ashfield Beck Yorkshire Water 79 -15 183 -42
2652 Howden Dike Drain Yorkshire Water 66 -32 183 -172
2653 Highwood Dike Yorkshire Water 66 7 182 -31
2654 Sheffield Lane Dike Yorkshire Water 76 -29 182 -57
2655 Messingham Catchwater Drain Severn Trent Water 30 17 182 113
2656 Llyn Maelog Dwr Cymru Welsh Water 14 -24 182 -38
2657 Ottringham Drain Yorkshire Water 34 -43 182 -240
2658 Parr Brook United Utilities 75 31 182 111
2659 River Strine Severn Trent Water 53 4 182 43
2660 Penny'S Brook River Blackwater Anglian Water 17 7 182 140
2661 Rough Dene Burn Northumbrian Water 52 -10 181 -7
2662 Buckland Brook Thames Water 12 8 181 143
2663 Wade Brook United Utilities 83 -17 181 -69
2664 Bugbrooke Brook Anglian Water 44 19 181 149
2665 Sandyford Brook United Utilities 40 32 181 118
2666 River Chater River Welland Anglian Water 41 41 181 181
2667 Rushyford Beck, Northumbrian Water 30 2 180 -7
2668 Willow Brook Severn Trent Water 70 -22 180 -19
2669 Stank Beck United Utilities 45 -2 180 -34
2670 South Low Northumbrian Water 23 4 180 59
2671 River Aeron Dwr Cymru Welsh Water 43 -25 180 -547
2672 Firth Park Stream Yorkshire Water 92 -39 180 -81
2673 Unnamed To West Looe Rivr South West Water 21 -9 180 -171
2674 Barsey Clough Yorkshire Water 31 -1 179 -90
2675 Varies With Outlet Yorkshire Water 86 -49 179 -87
2676 Eastcote Brook Severn Trent Water 32 12 179 141
2677 Ebbw Fach Dwr Cymru Welsh Water 73 19 179 109
2678 Walverden Water United Utilities 111 -154 179 -484
2679 Branscombe Stream South West Water 29 16 179 76
2680 Croft Bank Drain Anglian Water 19 -11 179 -245
2681 Captains Clough Brook United Utilities 92 92 178 178
2682 Harworth Sewage Dyke Severn Trent Water 34 -12 178 -112
2683 Ewan Mill Beck United Utilities 19 -8 178 -45
2684 Cound Brook Severn Trent Water 62 13 178 80
2685 River Lee Thames Water 43 36 178 171
2686 Hatfield Waste Drain Yorkshire Water 37 -8 178 -106
2687 Clvrt'D Section Swinnel Brook United Utilities 34 -40 178 -150
2688 River Orwell T Anglian Water 86 -8 178 -11
2689 Moors Burn Northumbrian Water 83 -52 177 -71
2690 Went Beck Yorkshire Water 72 -21 177 -22
2691 Sws To River Yarrow United Utilities 71 -24 177 -112
2692 Soar Brook Severn Trent Water 73 -25 177 62
2693 Holmes Tail Goit Yorkshire Water 55 36 177 94
2694 Penketh Brook United Utilities 76 -17 177 -11
2695 Hascombe Stream Thames Water 30 14 177 118
2696 Seacourt Stream Thames Water 26 -11 177 -24
2697 Cat'S Water Anglian Water 16 10 176 155
2698 River Ashburn Via Sws South West Water 63 -4 176 -200
2699 County Dyke Yorkshire Water 75 -39 176 -202
2700 River Bollin Via Sws United Utilities 47 -28 176 -55
2701 Shaw Brook United Utilities 25 25 176 176
2702 River Tame Northumbrian Water 19 14 176 136
2703 Mother Drain Yorkshire Water 20 -9 175 -165
2704 Wandle Thames Water 51 -13 175 -52
2705 Herons Ghyll Southern Water 29 -8 175 -3
2706 Longhirst Burn Northumbrian Water 29 -5 175 -359
2707 Fleakingley Beck Yorkshire Water 43 -6 175 33
2708 Trough Brook Yorkshire Water 43 -21 175 -35
2709 Fleet Beck Northumbrian Water 48 0 175 74
2710 Wellsyke Drain Yorkshire Water 21 5 175 157
2711 Tidal River Yare Anglian Water 177 -117 174 -399
2712 Batley Beck Yorkshire Water 73 0 174 29
2713 Nant Yr Aber Dwr Cymru Welsh Water 100 -13 174 -170
2714 Hazelrigg Beck United Utilities 29 9 173 104
2715 Tamerton Lake South West Water 43 -17 173 -41
2716 Ebberston Beck Yorkshire Water 73 -56 173 -115
2717 Coastal Waters - River Daron Dwr Cymru Welsh Water 33 -4 173 -69
2718 Sewerbridge Beck Yorkshire Water 57 -3 173 3
2719 Bourne Wessex Water 56 22 173 56
2720 Sheepscar Beck Yorkshire Water 75 1 172 -4
2721 River Need South West Water 19 -12 172 -164
2722 Weir Brook Severn Trent Water 50 -34 172 -73
2723 Three Pools Waterway United Utilities 56 -20 171 63
2724 Billinghan Beck Northumbrian Water 50 -13 171 -55
2725 Great River Ouse Anglian Water 26 22 171 169
2726 Holme Brook Yorkshire Water 85 -36 171 -22
2727 Rvr Irwell Via Langwood Brook United Utilities 96 15 171 70
2728 Bramble Brook Severn Trent Water 22 15 171 106
2729 Ebbw Fach River Dwr Cymru Welsh Water 37 5 171 8
2730 River Eden Dwr Cymru Welsh Water 25 -1 171 83
2731 Bondicarr Burn Northumbrian Water 29 1 170 -107
2732 Taunton United Utilities 71 -87 170 -1,410
2733 Brunsow Beck United Utilities 53 2 170 -144
2734 Murton Beck United Utilities 47 -6 170 142
2735 Brookhouse Dyke Severn Trent Water 49 21 170 100
2736 Castle Hill Stream South West Water 155 -1 170 -21
2737 Tidal River Crouch Anglian Water 18 -4 170 -53
2738 Stanton Brook Severn Trent Water 48 -42 169 -320
2739 Gledhow Beck Yorkshire Water 105 -39 169 -57
2740 Fagley Beck Yorkshire Water 64 -18 169 -33
2741 Red Brook United Utilities 38 -32 169 -526
2742 Middle Fen Drain Anglian Water 20 -3 168 -37
2743 Calfpasture Burn Northumbrian Water 43 -6 168 -41
2744 Cuddington United Utilities 21 21 168 168
2745 Kex Beck Yorkshire Water 54 -24 168 -897
2746 Springs Brook United Utilities 77 -44 168 -197
2747 Bushburn Brook United Utilities 23 23 168 168
2748 Barrock Gill United Utilities 33 0 168 56
2749 Lee Moor Beck Yorkshire Water 29 -13 167 -105
2750 Tuxford Beck Severn Trent Water 28 -12 167 -132
2751 East Fen Catchwater Drain Anglian Water 27 -19 166 -334
2752 Fossdyke Canal Anglian Water 42 -19 165 -264
2753 Cotton Mill Dyke, R Greet Severn Trent Water 52 -58 165 -451
2754 Loughour Estuary Dwr Cymru Welsh Water 59 11 165 19
2755 Wansbeck Northumbrian Water 43 -3 165 76
2756 Shotton Beck, Northumbrian Water 29 -22 165 -382
2757 Shutterton Brook South West Water 109 -24 165 23
2758 River Ceiriog Dwr Cymru Welsh Water 67 -3 164 14
2759 Caldy Brook River Dee United Utilities 19 12 164 101
2760 Culverted Scour Gutter Yorkshire Water 37 7 164 132
2761 Thistleton Brook United Utilities 37 -230 164 -1,319
2762 Team, Northumbrian Water 74 -2 163 86
2763 Holes Bay Wessex Water 22 2 163 -29
2764 Surface Water System Dwr Cymru Welsh Water 59 15 163 65
2765 Willow Brook River Nene Anglian Water 50 -17 163 -50
2766 Upper Fox Drain Yorkshire Water 33 6 163 -173
2767 Deepdale Beck Northumbrian Water 25 -12 163 -67
2768 Black Brook Via Sws United Utilities 47 -37 163 11
2769 River Harbourne South West Water 41 -64 162 -355
2770 Clvrt River Dearne Yorkshire Water 58 -4 162 -1
2771 Chapel Beck - Howl Beck System Northumbrian Water 21 -5 162 -23
2772 Greinton Rhyne Wessex Water 29 3 162 68
2773 Rhondda Fach River Dwr Cymru Welsh Water 63 -4 162 46
2774 Ripton Brook Anglian Water 12 1 162 -38
2775 River Cywyn Dwr Cymru Welsh Water 13 12 162 162
2776 Clwyd Dwr Cymru Welsh Water 27 8 162 54
2777 Lady Brook United Utilities 55 -20 161 13
2778 Holywell Stream Dwr Cymru Welsh Water 90 -2 161 -12
2779 Siston Brook Via Sws Wessex Water 97 41 161 124
2780 Dane In Shaw Brook United Utilities 68 8 161 67
2781 Trevedran Stream South West Water 25 -15 161 -185
2782 River Ystrad Dwr Cymru Welsh Water 40 4 160 95
2783 Mayland Brook Anglian Water 24 -2 159 -54
2784 Stream Bushburn Brook United Utilities 29 29 159 159
2785 River Brent Thames Water 69 0 159 24
2786 Haigh Beck Yorkshire Water 55 7 159 78
2787 O Riv.Teign Via Sw Sewer South West Water 31 -88 159 -2,281
2788 Longwood Mill Brook United Utilities 43 -3 159 -3
2789 Nant Brook Dwr Cymru Welsh Water 30 1 159 53
2790 Syd Brook United Utilities 32 -19 158 -15
2791 Lendall Carr Dyke Yorkshire Water 17 -19 158 -55
2792 Culverted Swale Yorkshire Water 11 -13 158 -134
2793 Darley Beck Yorkshire Water 35 -7 158 -147
2794 River Gowy United Utilities 58 1 158 76
2795 Dart River Estuary South West Water 74 -17 157 -4
2796 Higher Least Via Sw Sewer South West Water 51 0 157 47
2797 Ashby Brook Thames Water 26 8 157 99
2798 Highway - Colwinston Brook Dwr Cymru Welsh Water 10 3 157 122
2799 Cecilly Brook Severn Trent Water 101 17 157 53
2800 North Benfleet Brook Anglian Water 15 -11 156 -132
2801 Germany Beck Yorkshire Water 104 29 156 93
2802 Eitha Dwr Cymru Welsh Water 37 4 156 65
2803 River Kennett Anglian Water 34 1 156 5
2804 Sheep Dike Yorkshire Water 38 16 156 69
2805 Hammock Brook Severn Trent Water 36 15 156 96
2806 Share Ditch Thames Water 13 -6 156 16
2807 Shakerley Brook United Utilities 41 -51 156 -67
2808 River Camel Estuary South West Water 33 0 156 -36
2809 Shadforth Beck Northumbrian Water 46 -32 155 -184
2810 Knightswick Dyke Anglian Water 24 -8 155 -169
2811 Usworth Burn Northumbrian Water 45 7 155 9
2812 Maltby Dyke Severn Trent Water 23 -60 155 -497
2813 Limy Water R Irwell United Utilities 36 -39 155 -139
2814 Sealford Beck United Utilities 40 32 155 139
2815 Martin Brook Severn Trent Water 44 -1 155 15
2816 Cul Tyersal Beck Yorkshire Water 34 34 154 154
2817 Red Brook Yorkshire Water 48 16 154 28
2818 Lakehouse Dingle Brook Severn Trent Water 28 -5 154 -89
2819 Rivacre Brook United Utilities 51 -3 154 32
2820 Tyersal Beck Yorkshire Water 41 -18 153 -50
2821 Ban Brook Severn Trent Water 35 15 153 118
2822 Connington Brook Anglian Water 15 11 153 102
2823 River Nadder Via Sws Wessex Water 56 4 153 85
2824 Culv Old River Dearne Yorkshire Water 27 22 153 136
2825 Swine Syke Drain Anglian Water 14 -35 153 -24
2826 Yardley Brook Severn Trent Water 52 -22 153 -207
2827 Herringthorpe Beck Yorkshire Water 76 -6 153 -11
2828 Freshwater River Thames Water 55 46 153 135
2829 Cotting Burn Northumbrian Water 45 -10 152 39
2830 Guldeford Sewer Southern Water 18 -14 152 -224
2831 Brackendale Beck Yorkshire Water 58 -4 152 4
2832 Bockleton Brook Severn Trent Water 70 68 152 148
2833 Sowy River Wessex Water 21 8 152 71
2834 River Wyre Dwr Cymru Welsh Water 35 9 152 108
2835 Tider Gill Southern Water 34 -6 152 -126
2836 Bagthorpe Brook Severn Trent Water 31 -2 152 90
2837 Garsiwn River Dovey Dwr Cymru Welsh Water 122 29 152 -6
2838 Tidal River Stour Anglian Water 29 -7 152 43
2839 White Cross Beck Northumbrian Water 42 5 152 51
2840 Froghall Drain - Kettleby Beck Anglian Water 23 20 152 130
2841 St Lawrence Stream South West Water 130 -10 151 13
2842 Tri Of River Roden Severn Trent Water 28 13 151 113
2843 Ceiriog Dwr Cymru Welsh Water 12 -132 151 -1,513
2844 Stowlangtoft Stream Anglian Water 23 -2 151 33
2845 Whittle Burn, Tyne Northumbrian Water 34 -5 151 17
2846 Rodden Brook Wessex Water 16 15 151 148
2847 Nant Gyrlais Dwr Cymru Welsh Water 67 7 151 17
2848 Spittal Brook Yorkshire Water 37 -53 151 -773
2849 Avon River Estuary South West Water 12 3 150 78
2850 Asheldham Brook Anglian Water 19 -9 150 -54
2851 Shibden Beck Yorkshire Water 43 -31 150 -304
2852 Warmsworth Beck Severn Trent Water 74 -21 150 -258
2853 Unnamed Of River Test Southern Water 24 8 150 89
2854 Corn Brook Severn Trent Water 39 1 150 21
2855 Nant Yr Ystruth Dwr Cymru Welsh Water 51 -19 149 5
2856 Pentre Ffwrdan Stream Dwr Cymru Welsh Water 18 10 149 123
2857 Letch Beck Northumbrian Water 24 0 149 50
2858 Cossington Brook Wessex Water 53 -18 149 63
2859 Alderbourne Thames Water 30 12 149 98
2860 Nant Y Wilcae Dwr Cymru Welsh Water 51 17 149 -2
2861 Grammar School Brook Severn Trent Water 25 -2 148 52
2862 Mayes Brook Thames Water 49 -38 148 -234
2863 Nant Heol-Y-Geifr Dwr Cymru Welsh Water 47 -33 148 -131
2864 Birker Goit Yorkshire Water 22 0 148 105
2865 Limy Water United Utilities 42 -26 148 28
2866 Broadwell Brook Severn Trent Water 18 16 147 129
2867 River Loughor Estuary Dwr Cymru Welsh Water 32 21 147 -7
2868 Tipalt Burn Northumbrian Water 28 2 147 -6
2869 Blackwater River Anglian Water 33 11 146 104
2870 Straw Brook Anglian Water 15 10 146 112
2871 Un-Named Of Byr Brook Dwr Cymru Welsh Water 39 21 146 91
2872 Graiseley Brook Severn Trent Water 70 -21 146 -26
2873 Red Brook Dwr Cymru Welsh Water 68 -3 146 64
2874 Rush Brook Anglian Water 13 9 146 111
2875 Rasa Brook Dwr Cymru Welsh Water 49 -4 145 23
2876 River Rymney Dwr Cymru Welsh Water 55 -28 145 -58
2877 Nant Gelli-Nedd Dwr Cymru Welsh Water 37 7 145 76
2878 Little Stanney Drain United Utilities 42 -4 144 43
2879 Out Lane Dyke Yorkshire Water 31 -16 144 -68
2880 Meers Brook Yorkshire Water 71 -38 144 -87
2881 Cinderfield Dike Yorkshire Water 56 -11 144 -26
2882 Grindle Brook Via Sws South West Water 24 8 144 74
2883 Waddingham Beck Anglian Water 17 -4 144 -20
2884 Mill Race, River Exe South West Water 36 -4 144 16
2885 Culverted River Hertford Yorkshire Water 28 -11 144 0
2886 Laver Yorkshire Water 34 -12 144 5
2887 Tidal River Nene Anglian Water 30 -17 143 -213
2888 River Irwell Via Sws United Utilities 99 -45 143 -39
2889 Wing Brook River Ouzel Anglian Water 25 20 143 125
2890 Unnamed River Douglas United Utilities 54 -8 143 1
2891 Boardman Brook United Utilities 48 -5 143 4
2892 Unknown Of River Towy Dwr Cymru Welsh Water 75 -5 142 -79
2893 Picknill Green Stream Southern Water 20 -17 142 -27
2894 Weaver Navigation United Utilities 103 -24 142 -1
2895 Poaka Beck United Utilities 63 -14 142 -10
2896 Darlaston Brook Severn Trent Water 54 14 141 43
2897 Station Road Brook Severn Trent Water 34 -10 141 -14
2898 Cvrt Sec Middle Brook R R United Utilities 70 -23 141 -36
2899 Duck Brook Severn Trent Water 70 16 141 28
2900 Dean Brook Severn Trent Water 18 18 141 141
2901 Golftyn Brook Dwr Cymru Welsh Water 38 3 141 -6
2902 Backstone Burn Northumbrian Water 60 -14 140 38
2903 Pandy Brook,Tidal Dee Dwr Cymru Welsh Water 16 16 140 140
2904 Kid United Utilities 30 2 140 60
2905 Liggard Brook United Utilities 63 -4 140 -7
2906 Of Common Lake Stream South West Water 88 -5 140 14
2907 Hole Brook South West Water 13 -16 139 -129
2908 Whitewell Brook United Utilities 53 9 139 -42
2909 Lumley Park Burn Northumbrian Water 32 -18 139 -65
2910 Red House Beck, Northumbrian Water 40 -12 139 -71
2911 Avon Wessex Water 25 -18 139 -337
2912 Shirley Brook Severn Trent Water 21 -18 139 3
2913 River Tees Estuary Northumbrian Water 84 -21 139 -40
2914 Cegin Dwr Cymru Welsh Water 84 15 139 42
2915 River Bradley Dwr Cymru Welsh Water 38 11 139 72
2916 Whetstone Brook Severn Trent Water 23 -8 138 72
2917 Nant Muchydd Dwr Cymru Welsh Water 9 -6 138 12
2918 Camel Estuary South West Water 58 2 138 54
2919 Mill Beck United Utilities 43 37 138 99
2920 Roseworthy Stream South West Water 47 25 137 97
2921 Nant Gurrey Fach Dwr Cymru Welsh Water 40 -24 137 -149
2922 Wash Brook Anglian Water 31 -34 137 -885
2923 Wepre Brook Dwr Cymru Welsh Water 51 13 137 91
2924 Hole Brook United Utilities 19 -10 137 -55
2925 West Sedgemoor M Drain Wessex Water 12 6 137 85
2926 Swinnel Brook United Utilities 42 -197 137 -3,193
2927 Dowlish Brook Wessex Water 21 -3 137 1
2928 Terry Gutter Yorkshire Water 34 8 136 79
2929 Denton Brook United Utilities 43 -36 136 -14
2930 Morecambe Bay Estuarine Wtrs United Utilities 50 8 136 -11
2931 Ormesby Beck Northumbrian Water 47 -10 136 -62
2932 Cudworth Dyke Yorkshire Water 12 -48 136 -80
2933 Pymmes Brook Thames Water 56 33 135 92
2934 Red Burn Northumbrian Water 78 69 135 128
2935 Northbrook South West Water 60 3 135 13
2936 Lemington Gut Northumbrian Water 52 -7 135 -40
2937 Dwyfawr Dwr Cymru Welsh Water 28 28 135 135
2938 Himley Brook Severn Trent Water 25 -41 135 -666
2939 West Brook Anglian Water 50 9 135 39
2940 Cattewater South West Water 79 4 135 -10
2941 Irfon Dwr Cymru Welsh Water 18 17 135 129
2942 River Llifon Dwr Cymru Welsh Water 46 -9 134 -18
2943 Wallsend Burn Saline Estuary Northumbrian Water 53 1 134 31
2944 Tidal River Aire Yorkshire Water 60 60 134 134
2945 Millholme Beck Northumbrian Water 17 2 134 44
2946 Lam Brook Wessex Water 51 -14 134 33
2947 Singing Clough Brook United Utilities 44 -13 134 -45
2948 Nant Menascin Dwr Cymru Welsh Water 10 -17 134 -52
2949 Unknown Severn Trent Water 49 10 134 71
2950 Pictshill Brook, Gt Ouse Anglian Water 7 7 134 134
2951 Blyth Northumbrian Water 37 13 133 62
2952 Tetheringrass Drain Severn Trent Water 20 -28 133 -179
2953 Haveringsgrove Brook Anglian Water 16 4 133 41
2954 Llanerchymor Gutter Dwr Cymru Welsh Water 28 9 133 64
2955 Hartendale Gutter Yorkshire Water 34 -5 133 7
2956 Boughton Dyke Severn Trent Water 30 -12 133 -107
2957 Tidal River Thames Southern Water 69 -7 133 -4
2958 Esturial Waters At Hakin Point Dwr Cymru Welsh Water 69 -5 133 -8
2959 River Roch Via Sws United Utilities 101 -26 133 30
2960 Brinscall Brook United Utilities 25 0 133 -12
2961 Mitchell Brook Thames Water 42 -5 133 17
2962 Nant Mwrwg Tidal Dwr Cymru Welsh Water 77 -19 132 -66
2963 Lavenham Brook Anglian Water 15 15 132 132
2964 Trout Beck United Utilities 42 3 132 -16
2965 Highfield Drain Dwr Cymru Welsh Water 49 12 132 56
2966 Thames Estuary Southern Water 67 -16 132 -160
2967 Little Dike Yorkshire Water 32 -10 131 -84
2968 Grand Union Canal Severn Trent Water 38 19 131 117
2969 Denton Brook River Tame United Utilities 59 -14 131 42
2970 River Waveney T Anglian Water 38 2 131 28
2971 Thistlewood Brook Severn Trent Water 18 0 131 14
2972 Douglas Estuary United Utilities 22 12 131 85
2973 Nant Arian Dwr Cymru Welsh Water 50 -4 131 5
2974 Cotton Mill Beck Yorkshire Water 61 -6 130 -2
2975 Wince Brook, River Irk United Utilities 55 -25 130 -46
2976 Swanback Mill Brook United Utilities 39 4 130 71
2977 Stony Beck United Utilities 30 6 130 89
2978 Nightlayers Fen Drai Anglian Water 35 35 130 130
2979 River Moss Yorkshire Water 63 -58 130 -93
2980 Kenton Brook Thames Water 43 4 130 39
2981 Elmley/Hadley Brook Severn Trent Water 20 -4 130 29
2982 Stubbin Clough Yorkshire Water 33 -30 129 -216
2983 Pegwhistle Burn Northumbrian Water 8 -55 129 -766
2984 Hamoaze South West Water 61 8 129 45
2985 Low Moor Beck Yorkshire Water 44 -2 129 -28
2986 Higher Brixham Stream South West Water 34 -3 128 18
2987 Burton Brook Wessex Water 18 -19 128 -123
2988 Cadnant - Caernarfon Dwr Cymru Welsh Water 83 -14 128 -15
2989 Watercourse To River Tweed Northumbrian Water 30 22 128 107
2990 River Lune Estuary United Utilities 46 -88 128 -1,665
2991 Birdwell Dike Yorkshire Water 31 -18 128 -172
2992 Cefni - Cefni Reservoir West Dwr Cymru Welsh Water 63 -3 128 -4
2993 Haven Anglian Water 61 -14 128 84
2994 Rhondda R - Source To Conf River Rhondda Fach Dwr Cymru Welsh Water 88 -26 128 -245
2995 River Derwent Estuary United Utilities 29 0 127 96
2996 Dick Brook Severn Trent Water 32 9 127 20
2997 Eldersbriar Brook United Utilities 51 -16 127 15
2998 Halam Beck Brook Severn Trent Water 22 22 127 127
2999 Shell Brook Severn Trent Water 39 -10 127 47
3000 Plas Crug Ditch Dwr Cymru Welsh Water 13 5 127 47
3001 Millwood Brook - Creswell Arm Severn Trent Water 32 9 126 79
3002 Cairn Beck United Utilities 53 -17 126 24
3003 Tipton Brook Severn Trent Water 56 13 126 31
3004 Clvrt River Aire Yorkshire Water 38 -9 125 0
3005 Danes Dyke Yorkshire Water 53 -13 125 -9
3006 Drain To River Yar Southern Water 12 -5 125 -34
3007 Chapel Brook United Utilities 41 -42 125 -97
3008 Leasmires Drain Yorkshire Water 34 -2 125 54
3009 Wootton Brook River Nene Anglian Water 40 25 125 106
3010 Overflow Via Sewerage System S Dwr Cymru Welsh Water 26 6 125 32
3011 Robertsbridge Petty Sewer Southern Water 32 16 125 48
3012 Outlet No 2 Burton Latimer Bro Anglian Water 51 47 125 124
3013 Bacchus Brook United Utilities 13 -7 124 -58
3014 Llanion Pill, Milford Haven Dwr Cymru Welsh Water 75 -19 124 24
3015 Nant Cylla Dwr Cymru Welsh Water 46 -3 124 25
3016 Mere Brook Severn Trent Water 35 20 124 63
3017 River Cyll-Y-Felin Dwr Cymru Welsh Water 28 10 124 -5
3018 Riv. Mersey/Kickety Brook United Utilities 17 17 124 124
3019 Bent Lanes Brook Via Sw Sewer United Utilities 55 -26 124 -42
3020 Doncombe Brook Wessex Water 25 7 124 49
3021 Hey Clough Yorkshire Water 22 -30 124 -179
3022 Keswick Beck Yorkshire Water 30 -43 124 -143
3023 Sir Arthur'S Pill South West Water 48 5 124 39
3024 Thorpe Beck Northumbrian Water 35 -27 124 -166
3025 . United Utilities 44 -18 123 -47
3026 Wallsend Burn Northumbrian Water 61 21 123 23
3027 Cranbrook Brook Via Sws Wessex Water 26 -1 123 119
3028 Carr Drain United Utilities 44 44 123 123
3029 Jackson Bridge Dike Yorkshire Water 60 -42 123 -219
3030 Caddle Beck Anglian Water 57 11 123 76
3031 Bache Brook Dwr Cymru Welsh Water 61 -14 123 -39
3032 One Hundred Foot Dra Anglian Water 15 10 123 76
3033 Hennikers Ditch Thames Water 56 1 122 32
3034 Wakendale Beck Yorkshire Water 21 14 122 113
3035 Thornhurst Brook Thames Water 26 3 122 -2
3036 Clvrt Singing Clough Brook United Utilities 55 -16 122 -23
3037 Kearsley Brook Yorkshire Water 52 11 122 0
3038 River Severn Yorkshire Water 15 -13 122 -74
3039 Ochre Dyke Yorkshire Water 53 -11 121 -12
3040 Black Spool Dwr Cymru Welsh Water 37 9 121 55
3041 Bradwell Creek Anglian Water 10 -11 121 -152
3042 Steeton Beck Yorkshire Water 65 -25 121 -147
3043 Key Brook Wessex Water 16 6 121 58
3044 Chainley Burn Northumbrian Water 51 -4 120 6
3045 River Tamar Via Sws South West Water 174 -7 120 -573
3046 Un-Named Solway Firth United Utilities 58 -4 120 34
3047 Ock Brook Severn Trent Water 35 -9 120 -51
3048 Hellaby Dyke Severn Trent Water 21 -7 120 -1
3049 River Par South West Water 55 9 120 38
3050 Fishponds Brook Via Sws Wessex Water 41 8 120 19
3051 Unnamed Stream Wessex Water 23 7 120 38
3052 Rivr Sheppey Wessex Water 16 6 120 74
3053 River Colhuw Dwr Cymru Welsh Water 15 3 119 73
3054 Sturdy Beck Yorkshire Water 37 2 119 9
3055 Sw System Dwr Cymru Welsh Water 14 2 119 -15
3056 Rothley Brook Severn Trent Water 54 3 119 47
3057 Unnamed Of R Nene Anglian Water 22 7 119 104
3058 River Severn Wessex Water 53 -7 119 16
3059 Cockwell Sough Severn Trent Water 39 -20 119 -202
3060 Sws To Aller Brook South West Water 24 -10 119 -135
3061 Dales Beck Yorkshire Water 33 -7 119 45
3062 Drainage Channel River Thames Anglian Water 12 6 118 40
3063 Ecton Brook Anglian Water 6 -42 118 -303
3064 Oil Mill Beck Yorkshire Water 80 19 118 35
3065 Wrinstone Brook Dwr Cymru Welsh Water 19 -48 118 -88
3066 Hunts Brook United Utilities 24 3 118 12
3067 Barn Brook United Utilities 106 -7 118 -128
3068 Greenfield Valley Dwr Cymru Welsh Water 126 5 118 -134
3069 Taw Estuary South West Water 61 -16 117 -265
3070 Oswestry Brook Severn Trent Water 42 -3 117 15
3071 Gamblesby Beck United Utilities 27 -9 117 -12
3072 Ridding Brook Clvrt Via Sws Yorkshire Water 52 -19 117 -17
3073 Ings And Tetherings Drain Yorkshire Water 15 -12 116 -197
3074 Culverted Scarcroft Beck Yorkshire Water 64 1 116 -22
3075 Emral Brook Dwr Cymru Welsh Water 34 12 116 55
3076 River Amble South West Water 28 15 116 44
3077 Brick Yard Rhyne V Sws Wessex Water 14 5 116 45
3078 Olchon Brook Dwr Cymru Welsh Water 13 6 116 69
3079 Quorn Brook Severn Trent Water 52 8 116 25
3080 River Clyne Dwr Cymru Welsh Water 51 -27 116 -91
3081 Lady Beck River Eamont United Utilities 41 -1 115 -27
3082 Bowers Brook United Utilities 80 -15 115 20
3083 Wallers Haven Southern Water 27 -4 115 -59
3084 Lees Hd Beck Colne/Calder Yorkshire Water 17 -25 114 -124
3085 Wash Burn Northumbrian Water 49 -1 114 0
3086 Combe Stream South West Water 62 -19 114 -345
3087 Horsbere Brook Severn Trent Water 11 8 114 103
3088 Little Lawford Brook Severn Trent Water 42 14 114 72
3089 Dalton Beck Northumbrian Water 19 0 114 0
3090 Stirchell Brook Wessex Water 75 -2 114 47
3091 River Wyle Via Were Wessex Water 66 -9 114 13
3092 River Greet Severn Trent Water 44 -38 113 -107
3093 River Crimple Via Sewer Yorkshire Water 30 -17 113 7
3094 Ffos Ddu Dwr Cymru Welsh Water 27 -5 112 -48
3095 Oxleasedrove Rhyne East Wessex Water 15 0 112 44
3096 Dittisham Mill Creek-Estuarine South West Water 32 -8 112 -10
3097 Doupster Burn Northumbrian Water 28 6 111 -7
3098 Un-Named Watercourse South West Water 36 1 111 44
3099 River Corrwg Dwr Cymru Welsh Water 45 20 111 62
3100 Tunstall Beck Yorkshire Water 13 -21 111 -22
3101 Jenny Beck Rvr Croal United Utilities 51 -22 111 -10
3102 Werrington Brook Anglian Water 14 8 111 81
3103 Rillington Beck Yorkshire Water 40 15 111 79
3104 River Dore Dwr Cymru Welsh Water 19 9 111 66
3105 Ickornshaw Beck Yorkshire Water 38 -62 110 -101
3106 Yazor Brook Dwr Cymru Welsh Water 67 11 110 35
3107 River Annas, Syke Beck United Utilities 30 0 110 -40
3108 Bourne Brook River Colne Anglian Water 22 -5 110 -169
3109 Queens Park Culvert United Utilities 45 -29 110 -86
3110 Cradlebridge Petty Swr Southern Water 21 10 110 81
3111 Various - See Outlets Severn Trent Water 17 10 110 59
3112 Glodwick Brook United Utilities 28 -3 110 -2
3113 Colling Lane Brook, Pen Leach United Utilities 16 0 110 43
3114 Grimethorpe Dyke Yorkshire Water 36 12 110 73
3115 Hen Brook Anglian Water 14 14 110 110
3116 Lumb Brook United Utilities 47 -28 110 -32
3117 Portbury Ditch, Wessex Water 23 11 110 48
3118 Cock Shot Brook United Utilities 36 -20 109 -7
3119 River Burn Anglian Water 92 74 109 -26
3120 Clyne River Dwr Cymru Welsh Water 26 -14 109 -15
3121 River Ogwr Dwr Cymru Welsh Water 35 -4 109 26
3122 Riseley Brook River Kym Anglian Water 22 -7 109 -431
3123 Queens Park Culvert Via Sws United Utilities 56 -27 109 -182
3124 Warbleton Stream Southern Water 21 -14 109 -50
3125 Brislington Brook, Via Sws Wessex Water 41 5 109 28
3126 Faversham Creek Southern Water 55 -22 109 52
3127 Erlestoke Stream Wessex Water 20 12 109 90
3128 Lyde Brook Severn Trent Water 28 13 109 63
3129 Stan Beck United Utilities 68 -15 109 21
3130 Prestwold Hall Brook Severn Trent Water 16 -16 108 -61
3131 King Sedgemoors Drain Wessex Water 21 10 108 66
3132 Hoyle Mill Beck Yorkshire Water 28 -11 108 -83
3133 Tinker Sick Yorkshire Water 42 -8 108 21
3134 Culvrtd Glossop Brk Sws United Utilities 31 -12 108 -25
3135 Berry Brook South West Water 55 18 108 92
3136 Cornwell Brook Thames Water 23 5 108 67
3137 Tory Brook South West Water 84 9 108 24
3138 Iburndale Beck Yorkshire Water 29 7 107 18
3139 Bitham Brook Wessex Water 31 12 107 48
3140 Calder+Hebble Navigation Canal Yorkshire Water 64 -2 107 -3
3141 Goat Northumbrian Water 31 11 107 72
3142 Rowletch Burn 9River Team Northumbrian Water 25 14 107 50
3143 Allen'S Brook Wessex Water 17 0 106 -106
3144 Farsley Beck Yorkshire Water 79 8 106 -21
3145 Unnamed Drain River Hertford Yorkshire Water 17 1 106 17
3146 Aller Brook Via Sw Sewer South West Water 67 3 106 45
3147 Hepscott Burn Northumbrian Water 24 -21 106 -94
3148 Mill Race United Utilities 48 -30 106 -321
3149 Fowler Bridge Drain Yorkshire Water 16 -14 105 -46
3150 River Glanffyddion Dwr Cymru Welsh Water 39 -9 105 17
3151 Mill Brook Via Sws United Utilities 18 3 105 36
3152 R Chater Anglian Water 15 14 105 103
3153 Running Furrows Drain Anglian Water 61 1 105 20
3154 Rainham Creek Thames Water 15 -1 105 30
3155 Swinden Clough United Utilities 28 -15 105 -124
3156 Unnamed River Eau Severn Trent Water 18 -7 105 -90
3157 Ports Creek Southern Water 34 -6 104 -10
3158 Hooe Lake South West Water 53 -2 104 -2
3159 Honksford Brook United Utilities 44 -24 104 -30
3160 Cherry Orchard Yorkshire Water 24 -4 104 29
3161 Esturial Water Of River Neath Dwr Cymru Welsh Water 67 -10 104 -34
3162 Leeds/Liverpool Canal Yorkshire Water 58 -23 104 -62
3163 Sheff Yorkshire Water 43 -14 104 -41
3164 Dane-In-Shaw Brook United Utilities 39 -46 104 -122
3165 Rhyd Dwr Cymru Welsh Water 80 -28 104 -126
3166 Ince Brook United Utilities 17 7 104 50
3167 Milton Beck United Utilities 78 -15 104 -88
3168 River Carey Wessex Water 20 1 103 -28
3169 Ffynnon Y Ddol Channel Dwr Cymru Welsh Water 19 -16 103 -124
3170 Clvrtd Dean Beck Yorkshire Water 35 -12 103 -11
3171 Thorpe Dyke Yorkshire Water 52 -10 103 -15
3172 Of Gore Burn Northumbrian Water 20 -3 103 -27
3173 Syke Beck Yorkshire Water 39 15 103 53
3174 Newnes Brook Severn Trent Water 56 -21 103 -11
3175 Milton Brook Anglian Water 32 31 103 101
3176 River Cober Via Sws South West Water 79 -6 102 -13
3177 Pools Dike Yorkshire Water 36 -18 102 -55
3178 Spital Brook Yorkshire Water 27 -9 102 -87
3179 Canley Brook Severn Trent Water 39 12 102 44
3180 Castle Carrock Beck United Utilities 77 -19 102 5
3181 Carden Brook Dwr Cymru Welsh Water 35 4 102 53
3182 Trosnant Brook Dwr Cymru Welsh Water 36 -95 102 -13
3183 Sewer To Aller Brook South West Water 22 -14 102 -41
3184 Foston Brook Severn Trent Water 12 12 102 102
3185 Gilda Brook United Utilities 127 5 102 11
3186 Wheeler Dwr Cymru Welsh Water 21 -105 102 -310
3187 Mill Dam United Utilities 65 16 102 19
3188 Doxey Brook Severn Trent Water 37 35 101 100
3189 Finedon Brook Anglian Water 35 33 101 99
3190 Freshwater Wessex Water 30 -3 101 -74
3191 East Brook Anglian Water 40 39 101 99
3192 Unnamed Catchw Anglian Water 8 7 101 98
3193 Stort Navigation Thames Water 12 7 101 86
3194 River Nene Navigation Anglian Water 19 11 101 91
3195 Orwell Estuary Anglian Water 45 24 101 65
3196 Glynde Reach River Ouse Southern Water 12 -11 101 -194
3197 River Plym Estuary South West Water 41 -18 101 -31
3198 Boundary Brook United Utilities 33 -46 101 -46
3199 Stanley Brook Severn Trent Water 38 3 100 -14
3200 Eastern Cleddau Dwr Cymru Welsh Water 16 16 100 100
3201 Small Bridge Dyke Yorkshire Water 47 -6 100 0
3202 Llyn Nantlle Uchaf Dwr Cymru Welsh Water 45 -26 100 -26
3203 Hale Bourne Thames Water 14 2 100 42
3204 Rver Cherwell Thames Water 30 29 100 96
3205 Collar Beck United Utilities 26 0 100 23
3206 Clarkes Beck United Utilities 39 -43 100 -17
3207 Hunsworth Upper Lane Beck Yorkshire Water 30 -3 100 13
3208 Unknown Yorkshire Water 49 14 100 -5
3209 Welldale Beck Yorkshire Water 15 -12 100 -148
3210 Bat Burn Northumbrian Water 16 -3 99 -21
3211 Harmby Beck Yorkshire Water 31 -5 99 -40
3212 Silkmore Drain Severn Trent Water 7 -2 99 89
3213 Long Sutton Main Drain Wessex Water 15 -5 99 -70
3214 Lady Pool United Utilities 21 6 99 40
3215 Caistor Canal River Ancholme Anglian Water 9 -15 99 -301
3216 Of River Rhyd Hir Dwr Cymru Welsh Water 62 62 99 99
3217 River Henddol Dwr Cymru Welsh Water 19 -5 99 -29
3218 West Fleet Wessex Water 34 6 98 39
3219 Ceri Brook Dwr Cymru Welsh Water 32 1 98 16
3220 Mill Stream Via Sws Wessex Water 46 -2 98 6
3221 Galloper Pool United Utilities 107 -59 98 -2,176
3222 River Thames Estuary Southern Water 45 26 98 83
3223 Cranleigh Waters/Littlemead Thames Water 22 0 98 2
3224 Dub Beck United Utilities 24 -8 98 -24
3225 Bowling Beck Yorkshire Water 56 -70 98 -178
3226 Goch Bach Dwr Cymru Welsh Water 32 6 98 54
3227 River Dean R Bollin United Utilities 26 26 98 98
3228 Shire Brook Severn Trent Water 35 23 97 74
3229 Tees, To Northumbrian Water 56 -7 97 6
3230 Kyle Yorkshire Water 18 7 97 63
3231 Culverted River Colne Yorkshire Water 57 -10 97 -29
3232 Carcut Beck Northumbrian Water 48 -15 96 -16
3233 Ellen Brook Culvert United Utilities 33 -24 96 -21
3234 Hoeford Lake Southern Water 25 -16 96 -79
3235 Cresswell River Dwr Cymru Welsh Water 29 -15 96 -105
3236 Dudgrove Stream Thames Water 8 0 96 52
3237 River Ribble Tidal Via Sws United Utilities 14 0 96 -25
3238 Moss Yorkshire Water 46 12 96 -1
3239 Binstead Stream Southern Water 23 -4 96 -45
3240 Ouse Burn Estuary Northumbrian Water 50 -24 96 -64
3241 Auburn Beck Yorkshire Water 11 -4 95 -23
3242 Unknown Beck Yorkshire Water 22 15 95 78
3243 Poolstock Brook United Utilities 29 -7 95 22
3244 Elsdon Burn Northumbrian Water 35 -2 95 -53
3245 Bobs Brook Severn Trent Water 28 11 95 30
3246 River Monnow Dwr Cymru Welsh Water 40 15 95 57
3247 Leeds Yorkshire Water 56 -4 95 -25
3248 Kirk Bridge Dike Yorkshire Water 45 -25 95 -23
3249 Blackwater Estuary Anglian Water 29 -5 94 83
3250 Hatchford Brook Severn Trent Water 36 19 94 59
3251 Cuddington Brook United Utilities 58 -16 94 -87
3252 Chalybeate Spring Southern Water 13 -21 93 -404
3253 Pinsey Brook Thames Water 15 10 93 69
3254 North Soak Drain Yorkshire Water 36 -27 93 -23
3255 Shelf Brook Via Sws United Utilities 30 -16 93 -148
3256 Merlin'S Brook Dwr Cymru Welsh Water 28 -15 92 -66
3257 Town Dyke Yorkshire Water 35 -2 92 -11
3258 Aberach Stream Dwr Cymru Welsh Water 87 51 92 62
3259 Cockington Stream To Sea South West Water 39 -72 92 -1,376
3260 Tri Of River Strine Severn Trent Water 34 -13 91 -22
3261 Roundwood Brook Yorkshire Water 16 -11 91 -14
3262 R Avon Via S/Water Sewer Wessex Water 57 -7 91 5
3263 Nant Hawen Dwr Cymru Welsh Water 10 0 91 16
3264 River Hindburn United Utilities 39 -142 91 -74
3265 Seamer Stell Northumbrian Water 32 10 91 53
3266 Birkley Burn Northumbrian Water 33 -4 90 -52
3267 Taf Estuary Dwr Cymru Welsh Water 69 10 90 23
3268 Dyke Skellingthorpe Main Anglian Water 13 9 90 55
3269 Ebbw Fach R - Source To Conf Ebbw R Dwr Cymru Welsh Water 45 -37 90 -522
3270 Hundred Foot Drain Anglian Water 15 15 90 90
3271 Rushcombe Stream Wessex Water 31 1 90 0
3272 Fossdyke Navigation Canal Anglian Water 38 -16 90 -41
3273 Common Stell Yorkshire Water 14 3 90 15
3274 Otmoor Lane Ditch Thames Water 10 -12 90 -51
3275 Womersley Beck Yorkshire Water 31 9 90 52
3276 Aln Northumbrian Water 32 2 89 32
3277 Utray Belstead Brook Anglian Water 19 -19 89 -431
3278 Walsden Water Yorkshire Water 26 15 89 84
3279 Barrows Brook Southern Water 17 -1 89 0
3280 Deanoak Brook Thames Water 22 -9 89 -61
3281 Burntwood Brook Severn Trent Water 27 -11 88 0
3282 Unnamed Dyke To River Witham Anglian Water 16 15 88 87
3283 Culverted Section River Darwen United Utilities 66 -13 88 -17
3284 River Tillery Dwr Cymru Welsh Water 46 -3 88 35
3285 Wealdstone Brook Thames Water 45 -14 88 -20
3286 Longton Brook Severn Trent Water 59 22 87 48
3287 Cop Brook United Utilities 71 -6 87 1
3288 Culv Easington Drain Yorkshire Water 20 -33 87 8
3289 Dyke To River Dearne Yorkshire Water 42 4 87 16
3290 Brides Beck United Utilities 33 7 87 -6
3291 Birkin Brook Via Sws United Utilities 40 -30 87 -22
3292 Tinkers Leen Severn Trent Water 17 -8 87 -16
3293 River Chet Anglian Water 7 -9 87 -45
3294 River Avon Via Sw Sewer Wessex Water 30 8 87 57
3295 Red River Via Sws South West Water 18 5 87 82
3296 Clvrtd Pudsey Beck Yorkshire Water 56 -22 86 -89
3297 Holme/Eastburn Beck Yorkshire Water 30 -30 86 -46
3298 River Cale Via Sws Wessex Water 20 -4 86 -26
3299 Rhondda River Via A Culvert Dwr Cymru Welsh Water 150 4 86 -1,148
3300 Tankerton Bay Southern Water 23 -11 86 4
3301 Crimple Beck Or River Crimple Yorkshire Water 40 19 86 77
3302 Of River Soch Dwr Cymru Welsh Water 43 43 86 86
3303 Leak Gride Drain Anglian Water 19 5 86 31
3304 Fowlmere Stream Anglian Water 30 -4 86 45
3305 Fleet Drain Yorkshire Water 42 -18 85 -5
3306 To Chichester Harbour Southern Water 12 -6 85 -99
3307 Harworth Dyke Severn Trent Water 15 -6 85 -35
3308 Longrock Stream South West Water 23 9 85 57
3309 Crosby Garrett Beck United Utilities 24 -18 85 -389
3310 Trb Newmarket No2 Public Drain Anglian Water 16 14 85 82
3311 River Frome Via Sws Wessex Water 82 -3 85 39
3312 Tweed Northumbrian Water 220 190 85 58
3313 Alder Brook Severn Trent Water 22 12 85 67
3314 County Brook United Utilities 56 -89 85 -1,591
3315 Jenny Beck, Rv Croal United Utilities 52 -11 84 7
3316 Crendon Stream Thames Water 19 16 84 79
3317 Godshill Stream Southern Water 32 -2 84 -34
3318 Cranbrook Via Sws Wessex Water 85 -13 84 0
3319 Moat Brook Severn Trent Water 14 13 84 84
3320 Dark Water Southern Water 28 -10 84 -134
3321 Kilby Brook Severn Trent Water 15 8 84 41
3322 Tarset Burn Northumbrian Water 49 49 84 84
3323 Culverted Section Of Gaywood Anglian Water 71 15 84 25
3324 River Onny Severn Trent Water 33 8 83 41
3325 Nant Tyrarlwudd Dwr Cymru Welsh Water 70 -10 83 5
3326 Claverdon Brook Severn Trent Water 17 17 83 83
3327 River Don Via Pubic Sewer Yorkshire Water 39 -7 83 -40
3328 Houghton Burn Northumbrian Water 34 -9 83 11
3329 Rennington Burn Northumbrian Water 15 -8 83 -24
3330 Forcett Beck Northumbrian Water 18 -203 83 -2,832
3331 Stream Dis To Lyme Bay South West Water 46 -1 83 41
3332 Cow Beck Yorkshire Water 60 -10 83 -21
3333 Garmancarr Dike Yorkshire Water 30 -4 82 -2
3334 Holbrook Stream Anglian Water 38 34 82 80
3335 Pildacre Mill Beck Yorkshire Water 35 -15 82 -45
3336 Jumwell Beck Yorkshire Water 13 -8 82 18
3337 River Dwr Cymru Welsh Water 13 13 82 82
3338 River Braint Dwr Cymru Welsh Water 85 42 82 8
3339 Un Castle Ashby Anglian Water 28 20 82 79
3340 Peover Eye United Utilities 93 66 81 51
3341 Bilston/Darlaston Brook Severn Trent Water 29 7 81 57
3342 River Taw Estuary South West Water 79 34 81 64
3343 Running Water River Flit Anglian Water 13 8 81 58
3344 Cefni Reservoir Bypass Channel Dwr Cymru Welsh Water 18 18 81 81
3345 Wood Hill Brook Thames Water 11 0 81 -30
3346 Bourne/Black/Crane Brook Severn Trent Water 21 -11 80 -23
3347 Lady Bank Drain Yorkshire Water 21 5 80 14
3348 Yar Estuary Southern Water 18 1 80 -64
3349 Feeder Stream Daventry Reservo Anglian Water 45 42 80 78
3350 Charlecote Brook Severn Trent Water 12 9 80 70
3351 Nutter Beck Yorkshire Water 12 -6 80 -23
3352 Eller Gill United Utilities 38 0 80 42
3353 Syke Cut Via A Public Sewer Yorkshire Water 19 -4 80 68
3354 Bagley Brook Severn Trent Water 63 -9 79 -591
3355 Stoke Brook Wessex Water 47 5 79 26
3356 Worsborough Reservoir Yorkshire Water 32 -7 79 -24
3357 Culverted Wyke Beck Yorkshire Water 51 0 79 1
3358 Trub Brook River Irk United Utilities 54 -7 79 20
3359 Bellassis Burn Northumbrian Water 28 -14 79 -28
3360 Slate Brook Severn Trent Water 14 10 79 57
3361 River Wey Wessex Water 24 8 78 42
3362 Bell Lane Creek Thames Water 31 -10 78 -23
3363 Ledwyche Brook Severn Trent Water 8 -13 78 22
3364 Shottery Brook Severn Trent Water 56 5 78 43
3365 Stonehouse Creek Via Sws South West Water 110 -162 78 -261
3366 Hundred Foot Anglian Water 11 -18 78 -148
3367 Tidal River Piddle Wessex Water 26 -1 78 -26
3368 St. Osyth Creek Anglian Water 16 -3 78 -3
3369 Byr Brook Dwr Cymru Welsh Water 34 6 78 -126
3370 Alverthorpe Beck Yorkshire Water 66 -54 77 -107
3371 Gatley Brook Via Sws United Utilities 28 -24 77 -9
3372 Kirklees Brook United Utilities 32 -17 77 -58
3373 Plumpton Clough United Utilities 67 -6 77 40
3374 Back Brook Dwr Cymru Welsh Water 37 2 77 21
3375 High Lode Anglian Water 8 4 77 58
3376 Saundersfoot Stream Dwr Cymru Welsh Water 37 -35 77 -60
3377 West Dyke Anglian Water 84 17 77 30
3378 River Tutt Yorkshire Water 30 30 77 77
3379 Flothers Burn Northumbrian Water 40 3 77 16
3380 Rake Beck Yorkshire Water 26 -4 77 14
3381 Seiont Dwr Cymru Welsh Water 10 9 77 76
3382 Inner Harbour Anglian Water 89 -32 76 -17
3383 River Morlais Dwr Cymru Welsh Water 35 -76 76 -1,222
3384 Winniford Wessex Water 18 3 76 9
3385 Fareham Lake Southern Water 29 -48 76 -223
3386 Close Brook United Utilities 17 -71 76 -618
3387 Mousesweet Brook Severn Trent Water 78 -15 76 -26
3388 Rising Brook Severn Trent Water 63 55 75 63
3389 Meers Brook Culverted Yorkshire Water 43 -13 75 -63
3390 Nant Harri Dwr Cymru Welsh Water 47 4 75 -1
3391 Drain To Western Yar Southern Water 17 -6 75 -81
3392 Leven Town Drain Yorkshire Water 8 -24 75 -129
3393 River Abby South West Water 32 9 75 26
3394 River Torne Severn Trent Water 22 0 75 8
3395 Barnsley Beack To River Aire Yorkshire Water 44 -10 75 1
3396 Whaddon Brook Severn Trent Water 29 11 75 48
3397 Marston Brook Severn Trent Water 22 -1 75 -19
3398 Gwersyllt Fishpond Dwr Cymru Welsh Water 32 13 75 28
3399 Shotton Beck Northumbrian Water 40 -1 74 10
3400 Taunton Brook, Medlock United Utilities 30 -11 74 -3
3401 New Burn Northumbrian Water 43 -14 74 -49
3402 River Wampool Estuary United Utilities 29 -10 74 14
3403 Bremere Rife Southern Water 9 0 74 -24
3404 Bessy Brook Via Sws United Utilities 45 -13 74 -4
3405 Coundon Burn Northumbrian Water 9 -76 74 -1,057
3406 R Cadoxton Dwr Cymru Welsh Water 16 2 74 22
3407 Treyarnon Stream South West Water 14 -4 74 1
3408 Monkton Burn Northumbrian Water 24 -8 73 -15
3409 Kent Channel United Utilities 45 15 73 -31
3410 Walmersley Brook United Utilities 62 -13 73 -27
3411 Huntspill River Wessex Water 8 1 73 29
3412 Glaze Brook United Utilities 18 -8 73 6
3413 Marsh House Ditch Anglian Water 15 3 73 30
3414 Brinsley Brook Severn Trent Water 27 13 73 5
3415 Tidal River Ribble United Utilities 19 7 73 6
3416 Upgang Beck Yorkshire Water 40 15 73 38
3417 River Whittle Anglian Water 7 7 73 73
3418 Hebble Brook Culverted Yorkshire Water 59 -36 73 -19
3419 Swanswell Brook Dwr Cymru Welsh Water 20 -24 73 -4
3420 Ditton Brook Via Sws United Utilities 52 -2 72 -39
3421 Hennel Brook, River Darwin United Utilities 12 1 72 -3
3422 Bicton Brook Severn Trent Water 10 5 72 27
3423 Delphi Anglian Water 10 8 72 54
3424 Frodingham Mill Drain Yorkshire Water 30 -15 72 -100
3425 Goitre Brook Dwr Cymru Welsh Water 21 3 72 58
3426 Rudhall Brook Dwr Cymru Welsh Water 105 42 72 32
3427 Gunness South Drain Severn Trent Water 14 -7 72 1
3428 Main Idb River Yare Anglian Water 10 1 72 12
3429 River Kenwyn[S] South West Water 51 51 72 72
3430 Kirby Brook Anglian Water 53 -35 72 -100
3431 River Sid Via Sws South West Water 31 0 71 14
3432 Ogwr Fach Via A Surface Water Sewer Dwr Cymru Welsh Water 61 -2 71 -4
3433 Bristol Channel Wessex Water 49 2 71 4
3434 Estuarial Waters Of River Alaw Dwr Cymru Welsh Water 24 -15 71 -53
3435 Little Harwood Brook United Utilities 83 -6 71 -16
3436 Spital Beck Yorkshire Water 32 5 71 39
3437 Honicknowle Stream South West Water 37 -19 71 -38
3438 Sales Brook United Utilities 34 19 71 49
3439 Roding Thames Water 94 -8 71 -376
3440 Liswerry Pill Reen Dwr Cymru Welsh Water 77 -2 71 16
3441 Unnamed South Fen Drain Anglian Water 118 118 71 71
3442 Spring Mill Beck Yorkshire Water 53 0 71 -10
3443 Estuary Wessex Water 15 5 71 -18
3444 Hunsworth Beck Yorkshire Water 28 11 71 27
3445 Dabholme Beck Northumbrian Water 37 7 70 21
3446 Farnham Bourne Thames Water 11 -9 70 -68
3447 Mangerton River Wessex Water 23 4 70 -5
3448 Grimesmoor Dyke Severn Trent Water 23 4 70 5
3449 River Wriggle Wessex Water 10 -8 70 -37
3450 Gategill Beck United Utilities 41 -18 70 -19
3451 Carr Brook, Of Dow Brook United Utilities 19 1 70 -3
3452 Un Cross Brook United Utilities 13 -9 69 -16
3453 Un River Arun Southern Water 10 4 69 37
3454 River Menalhyl South West Water 14 7 69 47
3455 River Mersey Estuarine Waters United Utilities 63 -8 69 14
3456 Howe Beck Yorkshire Water 7 0 69 18
3457 River Gr Ouse/ Ml Gravel Pit Anglian Water 54 31 69 50
3458 Norton Fine Gill, Northumbrian Water 32 -10 69 -72
3459 Ditch South West Water 27 -15 69 -72
3460 Yellow Brook United Utilities 23 -8 69 0
3461 Greasby Brook United Utilities 36 12 69 32
3462 Northstreet Moor Rhyne Via Sws Wessex Water 35 3 69 36
3463 Hollingworth Clough United Utilities 28 -30 69 -23
3464 Handforth Brook Via Sws United Utilities 16 -4 69 -12
3465 Un-Named Stream Dwr Cymru Welsh Water 101 9 69 4
3466 Serpentine Water United Utilities 50 -17 69 -18
3467 Unmd Drain Riv. Humber Anglian Water 21 -8 69 14
3468 Langton Beck, Tees Catch Northumbrian Water 30 -4 68 38
3469 Measborough Dike Yorkshire Water 40 -5 68 -92
3470 Houghwell Burn Northumbrian Water 24 -24 68 -97
3471 Monks Brook Via Drain Southern Water 9 4 68 39
3472 River Severn Estuary Via Sws Wessex Water 20 -5 68 0
3473 Monktonmead Brook Southern Water 23 -4 68 -78
3474 Bydemill Ditch Thames Water 21 0 68 6
3475 Saffron Brook Severn Trent Water 43 8 68 37
3476 Hetton Burn Northumbrian Water 43 -13 68 -7
3477 Eglingham Burn Northumbrian Water 14 9 68 48
3478 Nor Beck Northumbrian Water 20 2 68 -59
3479 Little Hawden Stream Southern Water 13 1 68 17
3480 To Nant Gwrangon Dwr Cymru Welsh Water 40 -16 68 -7
3481 Thorpe Beck, Bill.Beck Northumbrian Water 39 -22 67 -33
3482 Leas Brook Severn Trent Water 64 -10 67 -68
3483 Bilton Beck Yorkshire Water 32 6 67 34
3484 Lliswerry Pill Reen Dwr Cymru Welsh Water 13 -2 67 -64
3485 Main Drain Yorkshire Water 6 -9 67 10
3486 River Medlock Via Sws United Utilities 57 -3 67 13
3487 Southway Stream South West Water 29 -4 67 26
3488 River Adur Via Sws Southern Water 10 -8 67 -13
3489 Nant Gwawr Dwr Cymru Welsh Water 88 88 67 67
3490 Wollaston Brook Anglian Water 54 17 67 39
3491 Brislington Brook Via Sws Wessex Water 65 17 67 22
3492 Walling Wells Brook Severn Trent Water 12 -4 67 16
3493 Guilders Burn Northumbrian Water 13 1 67 -8
3494 Rhydwaedlyd Brook Dwr Cymru Welsh Water 49 6 67 0
3495 Horn Brook Southern Water 17 -13 66 -65
3496 Franker Brook Severn Trent Water 18 -2 66 -12
3497 Allerston Beck Yorkshire Water 15 12 66 65
3498 Long Clough Brook United Utilities 41 -29 66 -47
3499 Moors River Via Sws Wessex Water 12 -5 66 -27
3500 Rib Thames Water 17 -18 66 -30
3501 Tetney Haven Anglian Water 34 -3 66 22
3502 Fenton Lode Anglian Water 34 3 66 17
3503 Sherbourne Brook Severn Trent Water 4 -10 65 -97
3504 St Mellion Stream South West Water 19 -5 65 -35
3505 River Weaver Via Sws United Utilities 21 1 65 56
3506 Kenyon Brook United Utilities 10 -8 65 -184
3507 Blackbridge Brook Southern Water 22 -20 65 -58
3508 Suddon Brook United Utilities 29 -2 65 18
3509 Pook Bourne Southern Water 28 26 65 60
3510 Unnamed Powdermill Stream Southern Water 21 -4 65 8
3511 Barry Dock No1 Dwr Cymru Welsh Water 28 26 65 64
3512 Latchington Brook Mundon Crk B Anglian Water 7 -27 65 -244
3513 Stour Brook River Stour Anglian Water 15 7 64 32
3514 Nant Bran Dwr Cymru Welsh Water 24 13 64 1
3515 Pickhill Beck Yorkshire Water 23 6 64 33
3516 Smite Brook Severn Trent Water 30 10 64 38
3517 Culverted Holgate Beck Yorkshire Water 60 22 64 35
3518 Sleekburn Northumbrian Water 25 -7 64 0
3519 Philip Burn Northumbrian Water 25 3 64 -6
3520 Healam Beck Yorkshire Water 20 -1 64 9
3521 Stromford Brook Via Sws United Utilities 58 -20 63 -16
3522 Halls Beck United Utilities 43 6 63 11
3523 Of Wollaston Brook Anglian Water 43 38 63 61
3524 Chorlton Brook United Utilities 37 -6 63 11
3525 Mill Beck/ Cavendish Dock United Utilities 20 -5 63 -105
3526 Hardshaw Brook United Utilities 40 -18 63 -18
3527 Combs Beck To Rattlesden River Anglian Water 8 6 62 33
3528 Garden City Drain Dwr Cymru Welsh Water 15 1 62 19
3529 Lea Thames Water 17 14 62 48
3530 Brook Dike Yorkshire Water 66 -21 62 -36
3531 Nidd Yorkshire Water 19 -5 62 -3
3532 Flagstaff Brook Severn Trent Water 5 5 62 62
3533 Sherford Stream Wessex Water 15 0 62 8
3534 Clippingham Stream Southern Water 10 -2 62 -3
3535 Snebra Beck United Utilities 30 19 62 52
3536 Kirkham Stream South West Water 29 -11 62 -11
3537 Shudrick Stream Wessex Water 44 -15 62 -34
3538 Castle Eden Burn Northumbrian Water 18 -7 62 -52
3539 Gore Brook United Utilities 18 -139 62 -2,759
3540 Woodnook Water United Utilities 52 5 61 0
3541 River Perry Severn Trent Water 9 5 61 60
3542 Skegger Beck Anglian Water 30 6 61 30
3543 Trough Beck Yorkshire Water 30 -5 61 8
3544 Redcar Beck Northumbrian Water 35 -2 61 -4
3545 Brookstray Severn Trent Water 26 -7 61 11
3546 Middleton Brook Thames Water 30 26 61 58
3547 Wannock Mill Stream Southern Water 19 -3 61 -153
3548 Waibeck Anglian Water 10 7 61 37
3549 Monks Brook Southern Water 14 -3 61 44
3550 Birk Sike United Utilities 42 4 61 11
3551 Local Ditch Severn Trent Water 12 -13 61 0
3552 Gaywood River Anglian Water 22 11 61 44
3553 Clvrt Dodworth Dyke Yorkshire Water 26 -6 60 -9
3554 Byde Mill Brook Wessex Water 11 -1 60 5
3555 Gill Syke Yorkshire Water 31 17 60 43
3556 Footherley Brook Severn Trent Water 20 -16 60 -53
3557 Dodnash Brook Anglian Water 4 -12 60 -156
3558 Ryebank Rife Via Surface Sewer Southern Water 8 7 60 56
3559 Allebourne Brook Wessex Water 25 4 60 41
3560 Culvrt Singing Clough Brook United Utilities 31 -11 60 -9
3561 River Leach Thames Water 11 8 60 41
3562 Sydenham Stream Thames Water 4 3 60 59
3563 Uunamed Lysdon Burn Northumbrian Water 24 5 59 17
3564 Culvert Of Cwm Gelli Stream Dwr Cymru Welsh Water 61 -19 59 -33
3565 River Condor United Utilities 24 7 59 -16
3566 Waterside Brook United Utilities 13 13 59 59
3567 Bishop Dike Yorkshire Water 16 3 59 57
3568 Bow Brook United Utilities 30 -33 59 -28
3569 Unnamed River Tyne Northumbrian Water 12 -7 59 28
3570 Pelaw Wood Beck Northumbrian Water 32 -3 59 -28
3571 Pennycomequick Stream Via Sws South West Water 70 4 59 -10
3572 Bow Burn Northumbrian Water 40 2 59 4
3573 Carr Brook Severn Trent Water 42 -14 59 2
3574 Dodham Brook Wessex Water 54 -5 59 0
3575 Singleton Brook United Utilities 46 -15 59 8
3576 Lodge Beck Yorkshire Water 30 -1 59 -4
3577 Savick Brook Rvr Ribble United Utilities 8 -3 58 -54
3578 Holme Brook / River Hipper Yorkshire Water 30 9 58 26
3579 Prescot Brook United Utilities 34 -34 58 -13
3580 River Coran Dwr Cymru Welsh Water 59 -10 58 -26
3581 Claydon Brook River Great Ouse Anglian Water 8 8 58 58
3582 Unnamed Ditch Wessex Water 47 21 58 24
3583 Neath - Conf With Nedd Fechan And Mellte To Tl Dwr Cymru Welsh Water 24 -16 58 44
3584 Sun Beck Yorkshire Water 29 -5 58 23
3585 Tingewick Brook Anglian Water 11 8 58 42
3586 River Douglas Via Sws United Utilities 55 -39 58 8
3587 Wellhams Brook Wessex Water 74 -30 57 -58
3588 River Whitewater Thames Water 19 4 57 31
3589 River Pant Anglian Water 13 7 57 15
3590 Loughton Brook Anglian Water 21 8 57 35
3591 Barton Brook Severn Trent Water 15 1 57 4
3592 Riding Mill Burn Northumbrian Water 27 0 57 -73
3593 Pembroke River / Milford Haven Dwr Cymru Welsh Water 21 0 57 -8
3594 Whitehall Brook Via Sws United Utilities 43 13 57 17
3595 Sea Dwr Cymru Welsh Water 67 30 57 28
3596 Unnamed Of Mill Brook United Utilities 23 10 56 9
3597 Whiston Brook Via Pub Swr Yorkshire Water 22 -11 56 -34
3598 Rothley Brook Via Surf Sewer Severn Trent Water 67 -5 56 -85
3599 Lincombe Barn Stream Wessex Water 16 6 56 35
3600 Kirkbridge Dike Yorkshire Water 27 -27 56 -34
3601 Black Brook Southern Water 33 -9 55 -53
3602 Nadder Brook South West Water 13 -49 55 -410
3603 Old Durham Beck Northumbrian Water 12 -9 55 -59
3604 Unnamed Of Grass Dyke United Utilities 9 2 55 11
3605 Town Brook Thames Water 7 7 55 55
3606 Drain To Nant Adail Dwr Cymru Welsh Water 17 8 55 34
3607 Nant-Y-Wedal Dwr Cymru Welsh Water 46 0 55 10
3608 Nearby Dyke Yorkshire Water 15 -9 55 0
3609 Coastal Waters At Overton Mere Dwr Cymru Welsh Water 8 7 55 54
3610 Paddock Beck Yorkshire Water 24 4 55 -3
3611 Swineshaw Brook Rvr Tame United Utilities 39 -17 54 -1
3612 Cloidach Dwr Cymru Welsh Water 19 -88 54 -806
3613 Outgang Drain Yorkshire Water 38 -44 54 -33
3614 Short Brook Yorkshire Water 29 -19 54 -164
3615 Wansbeck, Northumbrian Water 25 -12 54 -62
3616 Sibson Brook Severn Trent Water 27 12 54 12
3617 Clvrt'D Section Hodge Clough United Utilities 19 -17 54 -15
3618 Strad Brook Wessex Water 33 12 54 27
3619 Grewburn Beck Northumbrian Water 36 -17 54 -62
3620 Gypsey Race Yorkshire Water 45 -7 54 21
3621 Clvrt Section Of River Mersey United Utilities 34 5 54 24
3622 Culverted Grindleton Brook United Utilities 47 4 54 -20
3623 Cleugh Burn Northumbrian Water 20 -11 54 -73
3624 River Cynon River Dwr Cymru Welsh Water 47 5 54 14
3625 Todwick Beck Yorkshire Water 16 -3 54 -5
3626 Hortonwood Open Channel Severn Trent Water 35 0 54 2
3627 Langstone Harbour Southern Water 19 -15 54 -68
3628 Burton Beck Northumbrian Water 29 -10 54 -43
3629 Cockshaw Burn Northumbrian Water 45 -10 53 -74
3630 Unnamed Ely Ou Anglian Water 43 7 53 13
3631 Cantern Brook Severn Trent Water 39 7 53 26
3632 Arley Brook United Utilities 34 -38 53 -577
3633 Baston Creek South West Water 24 -24 53 -334
3634 Nant Cwmgelli Via Surface Water Drains Dwr Cymru Welsh Water 58 -9 53 -17
3635 Clvrt Of Captains Clough Brook United Utilities 17 -7 53 0
3636 River Sem Wessex Water 24 9 53 36
3637 Yeadon Gill Yorkshire Water 23 -8 53 -67
3638 Eaves Brook Savick Brook United Utilities 9 -2 52 -69
3639 Lea Brook Severn Trent Water 12 -35 52 -122
3640 Town Beck United Utilities 28 -19 52 -42
3641 Morton Brook Severn Trent Water 16 1 52 -17
3642 Netherton Burn Northumbrian Water 28 13 52 28
3643 Cow House Beck Yorkshire Water 14 -9 52 -36
3644 Dobeller Drain Yorkshire Water 15 -12 52 -19
3645 Knowle Stream South West Water 26 -2 52 0
3646 Unnamed Sm To Scotchells Brook Southern Water 24 1 52 6
3647 Crow Brook Severn Trent Water 34 6 52 6
3648 Harvington Brook Severn Trent Water 8 6 52 38
3649 Alphin Brook South West Water 34 -15 52 5
3650 River Glaven Anglian Water 19 9 52 8
3651 Don Via Surface Water Sewer Yorkshire Water 7 -13 52 -98
3652 Nun Royd Beck Yorkshire Water 42 -4 52 -21
3653 Rayleigh East Brook Anglian Water 10 -4 52 -73
3654 County Dyke To River Rother Yorkshire Water 18 -12 52 -24
3655 Old Fleet Drain Anglian Water 12 2 52 29
3656 River Y Llan Dwr Cymru Welsh Water 28 -12 52 -29
3657 Lustrum Beck, Northumbrian Water 44 -23 51 -607
3658 Stream At Winspit Botttom Wessex Water 40 4 51 -65
3659 River Hwch Dwr Cymru Welsh Water 33 -5 51 2
3660 Sandy River South West Water 28 12 51 17
3661 Laughton Highland Drain Severn Trent Water 10 -9 51 -37
3662 Derwent, Northumbrian Water 45 -25 51 -45
3663 Winter Beck Severn Trent Water 10 8 51 40
3664 Captains Clough United Utilities 18 -10 51 -3
3665 Meltham Dike Yorkshire Water 22 -17 51 -23
3666 Whittle Brook United Utilities 24 3 51 27
3667 North Stainley Beck Yorkshire Water 7 4 51 41
3668 Bullmead Ditch Wessex Water 19 2 50 9
3669 Halstock Stream Wessex Water 14 -24 50 -145
3670 Worthen Brook Severn Trent Water 11 7 50 17
3671 Horton Beck West Brook Clvrtd Yorkshire Water 41 -76 50 -266
3672 Wansbeck Estuary Northumbrian Water 20 10 50 43
3673 Hawes Gill United Utilities 55 15 50 26
3674 Culverted River Nene Anglian Water 22 -8 50 -78
3675 Pigeon Brook Yorkshire Water 13 -6 50 14
3676 Skerne Northumbrian Water 28 -9 50 19
3677 Par River South West Water 58 -1 50 3
3678 Saline Estuary Southern Water 48 6 50 -69
3679 Cyt Mawr Stream Dwr Cymru Welsh Water 12 12 50 50
3680 Yew Tree Farm Brook Severn Trent Water 5 5 50 50
3681 Rhymney River Dwr Cymru Welsh Water 14 5 50 16
3682 Unnamed Stream To Durlston Bay Wessex Water 44 1 50 -16
3683 Willy Beck United Utilities 39 -13 49 -104
3684 Kings Newnham Brook Severn Trent Water 7 3 49 27
3685 Tendring Streams Anglian Water 65 57 49 47
3686 Fowle Brook Via Sws United Utilities 29 1 49 12
3687 Not Defined Severn Trent Water 18 8 49 18
3688 Cofton Stream South West Water 13 -38 49 -161
3689 Barry Brook Dwr Cymru Welsh Water 22 14 49 28
3690 Uphill Great Rhne Wessex Water 10 1 49 10
3691 Grange Pool United Utilities 20 -18 49 -46
3692 Arclid Brook United Utilities 42 -2 49 8
3693 Test Estuary Southern Water 18 -15 49 -17
3694 Shawfords Lake Southern Water 8 0 49 11
3695 Estuary Of River Braint Dwr Cymru Welsh Water 20 20 49 49
3696 Tidal Pill Of Loughor Estuary Dwr Cymru Welsh Water 11 -5 49 -25
3697 Dunkeswell Stream South West Water 18 12 49 39
3698 Tolvaddon Stream South West Water 35 -6 49 -4
3699 Carr Gate Beck Yorkshire Water 27 -11 49 -14
3700 Oundle Wharf Anglian Water 28 27 49 48
3701 Unnamed Dyke East Halton Beck Anglian Water 6 6 49 49
3702 Bowsden Northumbrian Water 34 -3 48 10
3703 Ipstones Brook Severn Trent Water 26 4 48 14
3704 Radipole Lake Wessex Water 46 -5 48 9
3705 Slade River Anglian Water 37 10 48 32
3706 Grimescar Dike Yorkshire Water 30 -7 48 -7
3707 Lupset Beck Yorkshire Water 21 12 48 41
3708 River Roach Anglian Water 25 6 48 -85
3709 Hawke Brook Yorkshire Water 26 -11 48 -10
3710 Culverted Cunningham Brk United Utilities 27 -16 48 4
3711 Cuckmere River Southern Water 14 14 48 48
3712 Westmeadow Brook Severn Trent Water 7 -3 48 21
3713 River Bristol Avon Wessex Water 30 5 48 24
3714 Ridings Brook Severn Trent Water 66 5 48 11
3715 Beddington Effluent Carrier/Wa Thames Water 10 3 48 11
3716 Culverted Holywell Brook Yorkshire Water 5 2 48 44
3717 Mardyke Thames Estuary Anglian Water 9 -1 48 18
3718 Pakenham Stream Anglian Water 4 1 48 40
3719 Rudham Stream, River Wensum Anglian Water 5 5 48 48
3720 Lonco Brook Severn Trent Water 32 -6 48 -7
3721 River Yeo Via Sws Wessex Water 54 5 47 0
3722 Rock Lea River, Lytchett Bay Wessex Water 21 7 47 26
3723 Weymouth Harbour Via Sws Wessex Water 56 -2 47 1
3724 Great Ouse Anglian Water 26 -5 47 -4
3725 Unnamed Strm To Tilmore Brook Southern Water 11 1 47 32
3726 Alan Catchment Dwr Cymru Welsh Water 20 -5 47 -36
3727 Sutton Brook Sankey Brook United Utilities 37 -13 47 -9
3728 West Central Drain, Mersey Est United Utilities 16 13 47 41
3729 Anston Brook Severn Trent Water 18 -5 47 -10
3730 New Reed Brook United Utilities 45 -15 47 -8
3731 River Merddwr Dwr Cymru Welsh Water 14 5 47 38
3732 Prescot Brook Ditton Brk United Utilities 40 -16 47 -168
3733 Sud Brook Severn Trent Water 22 16 47 34
3734 Autherd Drain Yorkshire Water 26 11 47 23
3735 River Mas Culverted Yorkshire Water 33 -11 47 -9
3736 Hickton Brook Severn Trent Water 28 -8 46 -19
3737 Brow Lane Sewer Yorkshire Water 35 -23 46 -43
3738 Hips Burn Northumbrian Water 31 5 46 20
3739 Tinker Brook United Utilities 24 -13 46 2
3740 Greasby Brook Arrow Brook United Utilities 27 2 46 14
3741 Green Letch Northumbrian Water 26 -2 46 12
3742 Wilsden Beck Yorkshire Water 27 -7 46 -12
3743 Golden Brook Severn Trent Water 16 -3 46 -16
3744 New Inn Brook Dwr Cymru Welsh Water 27 12 46 16
3745 Nunroyd Beck Yorkshire Water 28 0 46 -6
3746 Norbeck United Utilities 56 -4 46 14
3747 Nun Brook Severn Trent Water 10 -1 45 23
3748 Marsh Brook United Utilities 30 -16 45 0
3749 Pix Brook Anglian Water 15 9 45 37
3750 Winterbourne Stream Thames Water 7 4 45 33
3751 Of Wear Estuary Northumbrian Water 28 -33 45 -120
3752 Waskerley Beck Northumbrian Water 32 -8 45 -12
3753 Church Burn Northumbrian Water 31 -20 45 -4
3754 West Meadow Brook Severn Trent Water 7 -7 45 13
3755 Cresswellshawe Brk Via Sws United Utilities 49 -6 45 30
3756 Lam Brook Via Sws Wessex Water 47 1 45 19
3757 Wignall Brook Stour Estuary Anglian Water 10 -30 45 -431
3758 Decoy Brook Thames Water 23 -3 45 15
3759 Howley Beck Yorkshire Water 5 -1 45 3
3760 Unnamed Backwater Of River Ise Anglian Water 30 28 45 44
3761 Tidal River Tone Wessex Water 5 -2 44 -69
3762 Winterton Homes Dr Anglian Water 4 0 44 13
3763 Trent United Utilities 49 -15 44 -8
3764 Nant Brook Via A Ditch Dwr Cymru Welsh Water 11 7 44 38
3765 Pîl Dafen Dwr Cymru Welsh Water 24 -4 44 -2
3766 Sprincle Pill,Daucleddau Dwr Cymru Welsh Water 13 4 44 10
3767 Bolton Beck Yorkshire Water 45 -21 44 -39
3768 Alfreton/Normanton Brook Severn Trent Water 12 -11 44 -75
3769 Brook Duck End Elstow Brook Anglian Water 8 8 44 44
3770 River Nant-Y-Goron Dwr Cymru Welsh Water 112 -85 44 -155
3771 Slack Brook Via Suface Water S United Utilities 22 -14 44 -10
3772 Tanners Brook Thames Water 16 9 44 33
3773 Evington Brook Severn Trent Water 18 14 44 35
3774 Harden Beck Yorkshire Water 22 0 44 2
3775 Blackshaw Beck Yorkshire Water 36 26 43 26
3776 Dawlish Water South West Water 86 7 43 13
3777 Unnamed Stream River Gwash Anglian Water 5 -33 43 -499
3778 Nether Ends Beck Yorkshire Water 16 -2 43 5
3779 To Crymlyn Brook Via A Surface Water Culvert Dwr Cymru Welsh Water 24 -1 43 -1
3780 Kent Channel Morecambe Estuary United Utilities 57 -22 43 -29
3781 Crossens Pool United Utilities 9 -4 43 -15
3782 Hermitage Brook Severn Trent Water 17 6 43 24
3783 Stourton Beck Yorkshire Water 14 6 43 20
3784 Carrick Roads South West Water 51 29 43 -165
3785 Unnamed Ditch,Trenance Lake South West Water 59 -3 43 8
3786 English Channel Wessex Water 42 -3 43 -191
3787 Unnamed Dyke Land Drain Anglian Water 7 5 43 32
3788 Oxfield Beck Yorkshire Water 9 0 43 -3
3789 Gnoll Brook Dwr Cymru Welsh Water 20 14 43 32
3790 Potters Bar Brook Thames Water 18 15 43 41
3791 Hosedon Burn Northumbrian Water 26 -38 42 -265
3792 Fordland Brook South West Water 30 -5 42 -14
3793 Balcombe Lake Southern Water 16 2 42 22
3794 Lance Beck Northumbrian Water 21 -16 42 -33
3795 Hagg Bush Dike Yorkshire Water 19 -13 42 -11
3796 Stromford Brk Rvr Mersey United Utilities 26 -16 42 -15
3797 Glenridding Beck United Utilities 38 2 42 -8
3798 Park Brook Severn Trent Water 33 -3 42 -15
3799 Combe Haven Southern Water 14 2 42 -28
3800 Spa Beck Northumbrian Water 6 3 42 23
3801 River Cegidog Dwr Cymru Welsh Water 32 -5 42 -45
3802 Unknown North Delph Anglian Water 12 6 42 6
3803 Lades Pool, River Lune United Utilities 23 23 42 42
3804 Baker Lane Brook Severn Trent Water 26 -20 42 -93
3805 R Wid Anglian Water 16 16 42 42
3806 Lestraines River South West Water 37 -26 41 -43
3807 Nadrid Water South West Water 17 3 41 38
3808 Rede Northumbrian Water 7 1 41 -1
3809 Chad Brook Severn Trent Water 42 17 41 33
3810 Far Moor Dyke Yorkshire Water 19 1 41 16
3811 Leven Drain Yorkshire Water 10 8 41 40
3812 Broughton Beck Northumbrian Water 16 -3 41 13
3813 Black Dike, Keer Estuary United Utilities 29 8 41 0
3814 Culverted River Irk United Utilities 33 -24 41 -7
3815 Clapton Stream South West Water 9 -2 41 11
3816 Lady Beck Culverted Yorkshire Water 23 -5 40 0
3817 Crosby Catchwater Drain Severn Trent Water 15 -21 40 12
3818 Sutton Brook Via Sws United Utilities 13 -4 40 0
3819 Prestwich Clough Via Culvert United Utilities 42 -19 40 -9
3820 Smithy Brook United Utilities 20 -4 40 17
3821 Iron Mill Stream South West Water 11 -18 40 -260
3822 Ise Brook Leading To River Nene Anglian Water 9 9 40 40
3823 Kirk Hammerton Beck Yorkshire Water 13 11 40 38
3824 West Drain Anglian Water 10 9 40 30
3825 Wortley Beck Culverted Yorkshire Water 32 -7 40 -5
3826 Fores Drain Severn Trent Water 12 -8 40 -16
3827 Stanney Brook United Utilities 45 -14 40 7
3828 Hellaby Brook Severn Trent Water 30 2 40 -20
3829 Derwent Yorkshire Water 7 -17 40 -286
3830 Lothersdale Beck Yorkshire Water 18 10 40 33
3831 Old Mill Stream Yorkshire Water 13 -5 40 -8
3832 S/W Sewer To Aller Brook South West Water 42 -25 40 -97
3833 Bickerstaffe Brook United Utilities 12 12 40 40
3834 Holly Brook Thames Water 3 3 40 40
3835 Penny Dike Yorkshire Water 27 -7 40 -18
3836 West Beck - Leven Northumbrian Water 6 2 40 26
3837 Waterside Wessex Water 55 -5 39 0
3838 Merriott Stream Wessex Water 32 -8 39 -196
3839 An Unamed Drain Anglian Water 5 -2 39 -62
3840 Carter Pool United Utilities 18 -26 39 -47
3841 Burrill Beck Yorkshire Water 23 -8 39 -6
3842 Highfurlong Brook Thames Water 7 4 39 33
3843 Sws-New Road Brook-Stoke Brook Wessex Water 18 -7 39 5
3844 Sea Cut Yorkshire Water 12 5 39 14
3845 Shibden Brook Yorkshire Water 17 -147 39 -412
3846 Bellerby Beck Yorkshire Water 13 -5 38 -34
3847 Oakley Bottom Dike Yorkshire Water 31 -12 38 -9
3848 River Soar/Ashlands Brook Severn Trent Water 10 -42 38 -850
3849 Chorlton Brook Via Culvert United Utilities 19 -52 38 -114
3850 Outwood Common R Crouch Anglian Water 14 4 38 11
3851 West Lynn Drain Anglian Water 25 16 38 36
3852 Ashby De La Zouch Canal Severn Trent Water 24 2 38 19
3853 Gissage South West Water 42 -9 38 2
3854 Tarn Beck Northumbrian Water 12 1 38 5
3855 Thelsford Brook Severn Trent Water 25 17 38 9
3856 Castle Gresley Brook Severn Trent Water 23 -7 38 -37
3857 Holmes Goit Yorkshire Water 26 -1 38 -1
3858 Nant Melyn/Rasa Brook Dwr Cymru Welsh Water 20 5 38 12
3859 Tutbury Mill Fleam Severn Trent Water 23 3 38 18
3860 Clydach River Dwr Cymru Welsh Water 12 -51 38 -431
3861 Nant Wilcae Dwr Cymru Welsh Water 10 7 38 32
3862 Well Sike Yorkshire Water 19 -56 38 5
3863 Caerhays Stream South West Water 16 6 37 22
3864 Colwell Bay Southern Water 10 -3 37 -13
3865 Rotherwick Brook Thames Water 11 5 37 -2
3866 River Swale Estuary Southern Water 22 -5 37 -8
3867 High Birks Beck Yorkshire Water 33 -73 37 -647
3868 Hey Brook River Roch United Utilities 26 -24 37 -11
3869 River Clyst Valley Via Sws South West Water 24 2 37 11
3870 Bristol Avon Via Sws Estuarine Wessex Water 33 -10 37 6
3871 East Howle Beck Northumbrian Water 31 -9 37 -51
3872 Bookham Brook Thames Water 13 11 37 28
3873 Brook Dyke Yorkshire Water 26 9 37 -7
3874 Duddo Burn, Northumbrian Water 27 -3 37 -14
3875 River Avon [Black Rocks] Sws Wessex Water 28 -11 37 -4
3876 Higher Leat Via Sws South West Water 4 -4 37 10
3877 Charlton Bottom Via Sws Wessex Water 46 2 37 11
3878 Beaulieu River Via A Stream Southern Water 5 1 37 7
3879 Jarvis Brook Southern Water 27 11 37 13
3880 River Dwyfawr Dwr Cymru Welsh Water 19 -40 37 -688
3881 Henmore/Scow Brook Severn Trent Water 21 -2 36 4
3882 Horden Burn/Thorpe Burn Northumbrian Water 71 23 36 8
3883 Barden Stream Southern Water 26 11 36 16
3884 Turves Brook, Micker Brook United Utilities 26 -55 36 -1,072
3885 Balne Beck Yorkshire Water 28 17 36 0
3886 Clv Whit Brook United Utilities 6 -127 36 -369
3887 Walverden Wtr Pendle Wtr United Utilities 16 3 36 -2
3888 Mincinglake Stream South West Water 12 -4 36 6
3889 Oldcoates Dyke Severn Trent Water 6 -1 36 12
3890 Westbrook Yorkshire Water 15 -15 36 -143
3891 Savick Brk Ribble Est United Utilities 9 -4 36 17
3892 Cranny Brook South West Water 8 -1 36 -20
3893 Beverley Brook Thames Water 15 0 36 14
3894 Chellow Dean Beck Yorkshire Water 32 12 36 23
3895 Hart Beck Northumbrian Water 25 -2 36 -2
3896 River Foulness Or Shipton Beck Yorkshire Water 11 4 35 6
3897 Salfords Stream Thames Water 8 1 35 10
3898 Knowl Water South West Water 12 9 35 33
3899 Hurley Brook Via Sws Severn Trent Water 31 9 35 17
3900 Moston Brook Via Sws United Utilities 21 -7 35 19
3901 Norman'S Gill Thames Water 10 6 35 28
3902 Wom Brook Severn Trent Water 33 5 35 13
3903 Denton Brook Via Clvr Wcourse United Utilities 16 -17 35 29
3904 River Ingol Anglian Water 6 2 35 11
3905 Ilsham Valley Stream South West Water 12 -66 35 -177
3906 Tanyard Brook United Utilities 27 -14 35 -14
3907 Nut Brook Severn Trent Water 39 22 35 8
3908 Uppingham Brook Anglian Water 13 3 35 28
3909 Ing Cliffs Drain Yorkshire Water 39 13 35 24
3910 Sunnyside Stream Southern Water 8 -1 35 1
3911 Culverted Spen River Yorkshire Water 32 -16 35 14
3912 Chorlton Brook Via Sws United Utilities 22 -21 34 -35
3913 River Synderford South West Water 12 -7 34 -18
3914 Tidal River Blyth Anglian Water 22 -1 34 -26
3915 Rundle Beck Severn Trent Water 16 10 34 31
3916 Esturail Waters Milford Haven Dwr Cymru Welsh Water 36 -14 34 -39
3917 Gwendraeth Fach Estuary Dwr Cymru Welsh Water 39 -25 34 -122
3918 River Llwchwr Dwr Cymru Welsh Water 11 -10 34 6
3919 Thornton Le Beans Beck Yorkshire Water 17 5 34 9
3920 Curborough Brook Severn Trent Water 41 23 34 15
3921 Kempnough Brook United Utilities 10 -4 34 8
3922 River Penrhos Dwr Cymru Welsh Water 25 -22 34 -67
3923 Hartburn Beck Northumbrian Water 35 -10 34 -1
3924 Pennington Brook Via Sws United Utilities 21 13 34 26
3925 Brampton Brach Anglian Water 13 9 34 32
3926 Folly Brook United Utilities 82 -2 34 -11
3927 Pudesy Beck Yorkshire Water 24 -35 34 -76
3928 River Clun Via An Unnamed Ditch Dwr Cymru Welsh Water 15 -51 34 -74
3929 Unnamed River Steeping Anglian Water 4 3 34 33
3930 Rothely Brook Severn Trent Water 15 4 34 22
3931 Raven Beck, River Eden United Utilities 47 -6 33 6
3932 River Severn Via Sws Wessex Water 12 0 33 11
3933 Kings Sedgemoor Drain Wessex Water 6 2 33 11
3934 Silsden Beck Yorkshire Water 25 0 33 -4
3935 Stambridge Brook Anglian Water 7 3 33 15
3936 Dodham Brook Via Sws Wessex Water 29 -4 33 -7
3937 Dulas North Dwr Cymru Welsh Water 3 -10 33 -127
3938 Frickley Beck Yorkshire Water 9 -2 33 -31
3939 Slade Anglian Water 62 43 33 27
3940 Holywell Brook Yorkshire Water 35 -31 33 -44
3941 Blackbrook Stream Southern Water 8 -12 33 -44
3942 Bye Gill United Utilities 9 7 33 33
3943 Great Stour River Southern Water 17 -8 33 -157
3944 Billingley Dyke Yorkshire Water 7 -8 33 -37
3945 Millers Brook Via Sws United Utilities 27 -17 33 0
3946 Culverted River Roch United Utilities 26 -21 33 -5
3947 Dean Clough River Calder United Utilities 19 -5 33 0
3948 Coldwell Burn/Murton Dene Northumbrian Water 8 -9 33 -19
3949 River Skell Via A Public Sewer Yorkshire Water 31 -36 33 -4
3950 Black Lane Brook United Utilities 12 -5 32 -17
3951 Surface Water Sewer Draining To Gors-Fawr Brook Dwr Cymru Welsh Water 21 -31 32 -26
3952 Matley Bog Stream Southern Water 12 4 32 2
3953 Ash Brook United Utilities 27 -27 32 -28
3954 Tidal River Neath Dwr Cymru Welsh Water 33 -5 32 -9
3955 River Kenwyn South West Water 61 -35 32 -326
3956 Bar Brook Severn Trent Water 5 1 32 -7
3957 Black Dyke Anglian Water 9 8 32 32
3958 Culverted Section Moston Brook United Utilities 26 -10 32 8
3959 Swillbrook Clvrt R Ribble United Utilities 5 -13 32 -68
3960 Tidal River Chelmer Anglian Water 9 -20 32 -185
3961 Clough Brook United Utilities 19 -27 31 -16
3962 Towerhead Brook Wessex Water 7 1 31 15
3963 Bretton Drain Dwr Cymru Welsh Water 5 2 31 -2
3964 Horkesley Black Brook Anglian Water 6 6 31 31
3965 Hazel Grove Brook United Utilities 28 28 31 31
3966 Nore Rithe/Emsworth Harbour Southern Water 4 -12 31 -116
3967 St Andrews Stream Wessex Water 16 -7 31 5
3968 White Cliffe Beck Northumbrian Water 9 -3 31 -10
3969 Castle Donington Brook Severn Trent Water 24 -4 31 2
3970 Claydon Brook-Great River Ouse Anglian Water 5 5 31 31
3971 Flood Relief Channel Sur W Sew Anglian Water 39 3 31 3
3972 Holes Bay Estuarine Wessex Water 15 1 30 -29
3973 Unnamed To Ystwyth Dwr Cymru Welsh Water 9 4 30 9
3974 Rush Brook Severn Trent Water 7 5 30 28
3975 Chigwell Brook Thames Water 18 1 30 15
3976 Mire Beck Via Sws Yorkshire Water 17 14 30 29
3977 Holes Bay Via Sws Wessex Water 9 -2 30 -33
3978 Griffins Brook Severn Trent Water 14 10 30 25
3979 Uttoxeter Brook Severn Trent Water 36 -55 30 -71
3980 Sindsley Brook Via Sws United Utilities 42 -20 30 -3
3981 Pattishall Brook Anglian Water 13 13 30 30
3982 Wharfe Yorkshire Water 19 7 30 10
3983 Gallows Brook Severn Trent Water 6 -3 30 20
3984 Dallam Brook Via Sws United Utilities 5 5 30 30
3985 Coldwell Burn Northumbrian Water 13 -19 30 -20
3986 River Ceiliog Dwr Cymru Welsh Water 6 6 30 30
3987 Sarah Beck United Utilities 26 -24 29 -20
3988 Old Rhyne Via Sws Wessex Water 5 3 29 14
3989 Combs Reservoir United Utilities 24 -6 29 -15
3990 Fryston Beck Yorkshire Water 10 -22 29 -136
3991 Salteye Brook Via Sws United Utilities 50 -11 29 -3
3992 Quarlton Brook United Utilities 15 -5 29 -9
3993 Askham Beck United Utilities 17 -6 29 -24
3994 Hinton Meads Brook Wessex Water 22 -8 29 -8
3995 Dog Pool Bk,Trb Of Borsdane Bk United Utilities 25 -13 29 8
3996 Unnamed Dyke Leading Padmoor D Anglian Water 3 3 29 29
3997 Cottingley Beck Yorkshire Water 52 1 29 -11
3998 Waterhead Brook Severn Trent Water 23 11 29 18
3999 Estuarial Waters Of Llantwit Stream Dwr Cymru Welsh Water 30 5 29 -1
4000 Motts Farm Drain R Black Anglian Water 9 2 29 13
4001 Pillmawr Reen Dwr Cymru Welsh Water 35 7 29 10
4002 River Blithe Severn Trent Water 19 10 29 26
4003 Barton Haven Anglian Water 37 -16 29 -7
4004 R Cynon - Conf Aman R To Conf R Taff Dwr Cymru Welsh Water 25 -7 29 -20
4005 Kingsforth Brook Severn Trent Water 13 -11 28 -34
4006 Newlands Brook Severn Trent Water 17 2 28 -5
4007 Tiddy Brook South West Water 26 -8 28 -34
4008 Dow Beck Culvert United Utilities 21 -45 28 -38
4009 Polbathic Stream South West Water 16 9 28 11
4010 Stock Brook Via Sws United Utilities 29 -21 28 0
4011 Warney Brook Severn Trent Water 51 -4 28 -35
4012 Wells Creek Anglian Water 6 4 28 13
4013 Caldy Brook Dwr Cymru Welsh Water 15 3 28 5
4014 Common Watercourse No 7 Anglian Water 29 1 28 -21
4015 River Lliedi Dwr Cymru Welsh Water 46 12 28 0
4016 Plock Wood Stream United Utilities 29 -14 28 -23
4017 Parham Beck United Utilities 21 0 28 11
4018 Black Burn, Northumbrian Water 13 -5 28 8
4019 Pudsey Beck Yorkshire Water 28 -2 28 -6
4020 River Bourne Severn Trent Water 5 1 28 3
4021 Liverpool Bay United Utilities 28 -3 28 3
4022 Boathouse Creek Anglian Water 8 -8 28 -207
4023 Nant Dyfaty Dwr Cymru Welsh Water 9 -10 28 -32
4024 Main Dyke River Wyre United Utilities 35 35 28 28
4025 Cefni Estuary Dwr Cymru Welsh Water 34 -18 28 -25
4026 Ulwell Stream Wessex Water 10 -8 27 -19
4027 Whitewall Creek Southern Water 4 -2 27 -49
4028 Alltami Brook Dwr Cymru Welsh Water 9 1 27 -11
4029 Ravensden Brook - River Great Ouse Anglian Water 10 9 27 25
4030 Relief Channel Anglian Water 22 -22 27 -52
4031 Backgill Burn Northumbrian Water 17 -14 27 -26
4032 River Lune Est United Utilities 11 1 27 9
4033 Sugley Dene Northumbrian Water 29 -4 27 4
4034 Via Sws Manchester Ship Canal United Utilities 11 1 27 7
4035 South Burn River Wear Northumbrian Water 17 -13 27 -53
4036 River Team Estuarine Waters Northumbrian Water 16 -8 27 -14
4037 Ibbetsons' Sike Northumbrian Water 17 -16 27 -22
4038 Strines Beck Yorkshire Water 12 12 27 27
4039 Pedley Brook United Utilities 8 3 27 13
4040 Nant Creuddyn Dwr Cymru Welsh Water 35 -7 27 0
4041 River Hubberston Pill Dwr Cymru Welsh Water 16 0 27 -2
4042 Birmingham Canal Severn Trent Water 53 4 27 6
4043 Dow Brook United Utilities 8 -2 27 -45
4044 Jackson Bridge Dyke Yorkshire Water 20 4 26 -5
4045 To River Alver Southern Water 7 0 26 -30
4046 Culverted Star Beck Yorkshire Water 18 8 26 15
4047 Holbeache Brook Severn Trent Water 19 7 26 14
4048 Chivericks Brook Wessex Water 53 0 26 3
4049 Sailors Stream Southern Water 6 2 26 -17
4050 Sandycroft Drain Dwr Cymru Welsh Water 6 -6 26 -24
4051 Stonehill Drain Yorkshire Water 19 -3 26 -3
4052 Mill Stream Eastburn Beck Yorkshire Water 17 -3 26 1
4053 River Worth Via Knowle Pk Spng Yorkshire Water 27 -5 26 -4
4054 Beaulieu River Estuary Southern Water 5 -3 26 -30
4055 Pity Me Beck Northumbrian Water 16 -14 26 -43
4056 Blue Beck, Ouse Yorkshire Water 10 10 26 26
4057 Cattewater Plym Estuary South West Water 19 7 26 0
4058 Horsecombe Brook Wessex Water 37 6 26 12
4059 Rive Don Yorkshire Water 14 2 26 -12
4060 Unnamed Utuary Of Gwendreath Fach Dwr Cymru Welsh Water 20 14 26 10
4061 Peneont Water South West Water 7 4 25 17
4062 Withycombe Brook South West Water 25 -10 25 2
4063 Cefni Dwr Cymru Welsh Water 32 -12 25 -14
4064 Culverted River Cheswold Yorkshire Water 8 3 25 11
4065 Rhyl Cut Dwr Cymru Welsh Water 32 12 25 -29
4066 Potwell Southern Water 6 -3 25 15
4067 Hindsford Brook/Shakerley Broo United Utilities 17 17 25 25
4068 Fleet Northumbrian Water 11 4 25 9
4069 Shropshire Union Canal United Utilities 19 12 25 16
4070 River Ogden United Utilities 9 -55 25 -343
4071 An Unnamed Shef Yorkshire Water 9 5 25 10
4072 Freshwater South West Water 2 2 25 25
4073 Horton Beck Yorkshire Water 39 -2 25 -11
4074 Broughton Brook Wessex Water 10 1 25 11
4075 Purnell'S Brook Severn Trent Water 7 6 25 19
4076 Longbrook Stream South West Water 30 2 25 -14
4077 Scrase Bridge Stream Southern Water 9 1 25 -2
4078 Chaffinch Brook Thames Water 12 -1 25 0
4079 Dollis Brook Thames Water 13 1 25 6
4080 Nant Ddu Dwr Cymru Welsh Water 10 -20 25 -258
4081 Riseley Brook River Ky Anglian Water 4 4 25 25
4082 Cliffe Creek Southern Water 2 2 25 25
4083 Bodmin Town Leat South West Water 36 -2 25 -6
4084 Slade Brook River Ise Anglian Water 20 18 25 24
4085 Crindau Pill Dwr Cymru Welsh Water 36 17 24 16
4086 Cross Beck Northumbrian Water 11 0 24 6
4087 Polecat End Ditch Thames Water 5 2 24 18
4088 Shaw Dyke Yorkshire Water 11 2 24 0
4089 Wortley Beck Pumped Outlet Yorkshire Water 17 7 24 2
4090 Whit Brook United Utilities 34 -22 24 -14
4091 River Chor River Yarrow United Utilities 48 46 24 24
4092 Drain, Valley Brook United Utilities 18 -7 24 4
4093 Barlow Burn Northumbrian Water 32 -6 24 -186
4094 Adderlane Gill Park Burn Northumbrian Water 11 -6 24 -30
4095 Hoyle House Brook Yorkshire Water 23 -17 24 -230
4096 River Limden Southern Water 18 -23 24 -619
4097 Dog Pool Brook United Utilities 11 2 24 3
4098 Basingstoke Canal Thames Water 9 6 24 13
4099 Bowstead Brook River Blackwate Anglian Water 14 -4 24 -17
4100 Slade River Cam Anglian Water 24 20 24 22
4101 Lopen Stream Wessex Water 6 2 24 -1
4102 Bourn Brook Severn Trent Water 56 13 24 8
4103 Darklands Brook Severn Trent Water 16 -5 24 3
4104 Warren Hill Brook Severn Trent Water 13 -10 24 -5

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. 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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