There were at least 559,546 "sewage spills" into rivers in 2023, lasting an almost unbelievable 4,513,992 hours

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

Rivers Ranked for 2023

Here are all the rivers in England and Wales that had sewage overflows in 2023. 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 Calder Yorkshire Water 4,177 1,209 32,732 14,653
2 River Avon Wessex Water 4,719 2,060 32,577 23,486
3 River Severn Severn Trent Water 3,057 789 30,236 12,741
4 River Aire Yorkshire Water 4,888 1,317 29,458 15,648
5 River Teifi Dwr Cymru Welsh Water 2,579 690 28,371 14,292
6 Unknown South West Water 3,351 1,306 28,279 8,883
7 River Ouse Yorkshire Water 2,774 1,118 27,386 17,630
8 River Tame United Utilities 3,180 1,116 25,484 14,472
9 River Wharfe Yorkshire Water 2,456 769 23,120 12,322
10 River Tawe Dwr Cymru Welsh Water 2,592 774 22,776 8,795
11 River Trent Severn Trent Water 2,939 1,026 21,776 12,668
12 River Irwell United Utilities 3,457 1,072 20,904 7,965
13 River Tamar South West Water 1,999 476 20,372 4,826
14 River Don Yorkshire Water 2,231 739 18,312 10,562
15 River Carron Scottish Water 392 -201 17,781 7,321
16 Solent Southern Water 1,550 537 16,942 8,279
17 River Eden United Utilities 2,021 329 16,645 4,865
18 River Derwent Severn Trent Water 2,732 755 16,576 7,634
19 River Rother Southern Water 1,237 453 15,730 5,764
20 River Torridge South West Water 1,406 465 15,610 8,428
21 River Usk Dwr Cymru Welsh Water 1,864 304 15,439 4,398
22 Clyde Estuary Scottish Water 2,090 936 15,194 4,297
23 River Wye Dwr Cymru Welsh Water 2,024 503 13,853 6,894
24 Freshwater River Southern Water 1,957 704 13,717 5,160
25 River Erewash Severn Trent Water 1,707 507 13,661 6,465
26 River Taf Dwr Cymru Welsh Water 854 218 13,593 4,353
27 River Tyne Saline Estuary Northumbrian Water 1,485 461 13,353 6,653
28 River Mersey Estuary United Utilities 1,712 369 13,293 6,681
29 River Taff Dwr Cymru Welsh Water 1,494 379 13,095 3,533
30 Wear Northumbrian Water 1,675 624 12,542 8,257
31 River Nidd Yorkshire Water 1,082 375 12,445 6,771
32 River Rhymney Dwr Cymru Welsh Water 1,800 249 12,410 2,582
33 River Clyde Scottish Water 2,042 -138 12,298 -3,040
34 River Wear Northumbrian Water 1,855 646 12,279 7,654
35 River Inny South West Water 770 178 12,047 4,044
36 River Calder United Utilities 1,332 430 12,012 6,031
37 River Frome Wessex Water 1,783 817 11,819 8,189
38 River Teign South West Water 1,161 309 11,423 4,208
39 Severn Estuary Dwr Cymru Welsh Water 1,054 368 10,949 3,546
40 River Llynfi Dwr Cymru Welsh Water 1,344 240 10,910 2,723
41 River Rother Yorkshire Water 1,651 382 10,669 3,425
42 River Cynon Dwr Cymru Welsh Water 1,549 189 10,299 2,763
43 River Ellen United Utilities 838 -44 10,271 -1,459
44 River Avon Severn Trent Water 1,130 150 10,187 4,469
45 River Yeo Wessex Water 816 433 9,942 6,608
46 Gwendraeth Fawr Dwr Cymru Welsh Water 1,141 311 9,857 3,385
47 River Garw Dwr Cymru Welsh Water 611 -223 9,824 -6,310
48 River Stour Wessex Water 893 362 9,634 4,946
49 River Dulais Dwr Cymru Welsh Water 638 214 9,569 4,354
50 River Chew Wessex Water 723 333 9,356 5,694
51 Manchester Ship Canal United Utilities 1,458 287 9,117 2,054
52 River Seiont Dwr Cymru Welsh Water 1,012 352 8,898 3,971
53 Biggar Burn Scottish Water 243 48 8,855 713
54 River Sence Severn Trent Water 1,051 248 8,838 3,918
55 River Erch Dwr Cymru Welsh Water 545 83 8,825 2,035
56 River Derwent United Utilities 966 36 8,807 3,586
57 River Ure Yorkshire Water 1,014 257 8,782 5,424
58 River Dearne Yorkshire Water 1,221 409 8,749 4,018
59 River Test Southern Water 497 412 8,504 7,530
60 River Bollin United Utilities 1,248 404 8,454 1,524
61 River Mersey United Utilities 1,782 595 8,427 5,080
62 River Dee Dwr Cymru Welsh Water 1,598 461 8,268 3,333
63 Unknown United Utilities 1,177 681 8,239 7,206
64 River Blakewater United Utilities 1,019 522 8,176 5,989
65 River Lwyd Dwr Cymru Welsh Water 1,503 116 8,153 1,562
66 River Marlais Dwr Cymru Welsh Water 532 147 8,035 2,866
67 River Etherow United Utilities 1,020 259 8,007 1,644
68 River Lune United Utilities 907 390 7,950 4,986
69 Unknown Wessex Water 816 464 7,892 5,110
70 River Amber Severn Trent Water 705 94 7,877 2,994
71 River Llyfni Dwr Cymru Welsh Water 791 240 7,753 3,170
72 River Rhondda Fach Dwr Cymru Welsh Water 1,169 151 7,732 1,875
73 River Nith Scottish Water 651 39 7,729 -5,101
74 River Swale Yorkshire Water 1,016 130 7,595 2,930
75 River Ribble United Utilities 930 487 7,572 4,081
76 River Goyt United Utilities 1,029 193 7,557 1,330
77 River Tees Northumbrian Water 990 440 7,506 4,795
78 Clyde Estuary/Firth of Clyde Scottish Water 464 79 7,466 3,666
79 River Ely Dwr Cymru Welsh Water 835 311 7,465 3,731
80 River Culm South West Water 655 338 7,303 4,223
81 River Soar Severn Trent Water 1,150 469 7,277 4,168
82 River Yeo South West Water 619 386 7,231 4,454
83 River Nene Anglian Water 1,146 434 7,042 4,335
84 River Llugwy Dwr Cymru Welsh Water 394 90 6,986 2,188
85 Wray Brook South West Water 488 219 6,962 3,044
86 River Till Wessex Water 299 160 6,958 3,989
87 River Gwili Dwr Cymru Welsh Water 852 49 6,899 2,345
88 Western Cleddau Dwr Cymru Welsh Water 641 231 6,846 3,814
89 River Blackwater Southern Water 366 159 6,835 3,226
90 Cluden Water Scottish Water 980 296 6,726 369
91 River Clyst South West Water 449 80 6,725 4,776
92 River Kent United Utilities 492 79 6,649 1,857
93 River Humber Yorkshire Water 826 430 6,587 5,922
94 River Arun Southern Water 423 226 6,542 3,669
95 River Wye Severn Trent Water 466 166 6,507 3,709
96 River Eea United Utilities 281 -127 6,471 900
97 River Otter South West Water 876 318 6,469 2,053
98 River Mole South West Water 707 349 6,441 3,096
99 River Amman Dwr Cymru Welsh Water 1,009 235 6,427 2,254
100 River Exe South West Water 537 182 6,362 2,697
101 River Loughor Dwr Cymru Welsh Water 557 95 6,340 1,529
102 River Rhyd Hir Dwr Cymru Welsh Water 524 87 6,311 2,093
103 Ogwr Fawr Dwr Cymru Welsh Water 673 277 6,296 3,959
104 River Ogwen Dwr Cymru Welsh Water 575 234 6,259 3,137
105 Black Brook United Utilities 883 291 6,233 2,527
106 River Blythe Severn Trent Water 410 203 6,228 3,597
107 River Stour Severn Trent Water 853 224 6,200 3,664
108 River Thames Thames Water 1,094 425 6,195 3,112
109 Hexden Channel Southern Water 412 218 6,193 4,048
110 River Weaver United Utilities 773 370 6,184 2,510
111 River Anghof Dwr Cymru Welsh Water 380 166 6,182 3,774
112 Ogwr Fach Dwr Cymru Welsh Water 418 168 6,150 3,091
113 River Holme Yorkshire Water 726 286 6,059 3,140
114 Mounton Brook Dwr Cymru Welsh Water 291 228 6,053 4,641
115 River Derwent Yorkshire Water 805 297 5,991 3,608
116 River Irfon Dwr Cymru Welsh Water 492 81 5,913 821
117 River Laen Dwr Cymru Welsh Water 291 30 5,811 2,148
118 River Doe Lea Yorkshire Water 517 245 5,693 4,204
119 River Seaton South West Water 432 234 5,684 3,956
120 Bradshaw Brook United Utilities 521 214 5,667 3,773
121 River Colne Yorkshire Water 1,413 130 5,600 2,667
122 River Bourne Wessex Water 423 256 5,592 3,157
123 River Ithon Dwr Cymru Welsh Water 537 254 5,567 3,543
124 River Beult Southern Water 422 203 5,554 3,316
125 River Bride Wessex Water 299 160 5,541 3,055
126 Borsdane Brook United Utilities 444 213 5,535 4,842
127 River Cherwell Thames Water 424 227 5,530 4,079
128 River Meavy South West Water 377 102 5,530 1,317
129 Nant Brisgyll Dwr Cymru Welsh Water 466 102 5,457 2,788
130 River Tone Wessex Water 517 235 5,412 3,183
131 River Welland Anglian Water 480 151 5,398 2,052
132 River Lydden Wessex Water 369 106 5,374 1,865
133 River Marlas Dwr Cymru Welsh Water 309 -14 5,354 118
134 Tyne Northumbrian Water 1,041 408 5,340 3,460
135 River Ryburn Yorkshire Water 578 132 5,339 3,628
136 River Goch Dwr Cymru Welsh Water 514 355 5,332 5,053
137 River Adur Southern Water 436 177 5,313 2,639
138 River Ayr Scottish Water 577 126 5,271 1,700
139 Leader Water Scottish Water 58 19 5,261 515
140 River Medway Southern Water 830 212 5,254 1,787
141 River Twymyn Dwr Cymru Welsh Water 254 135 5,250 3,086
142 Blackbrook River South West Water 253 253 5,244 5,244
143 Bidwell Brook South West Water 451 152 5,241 2,250
144 Weaver South West Water 258 258 5,212 5,212
145 River Ouse Southern Water 508 233 5,200 2,309
146 Cobshaw Dyke Yorkshire Water 259 113 5,185 3,327
147 Milton Stream South West Water 294 53 5,177 511
148 Loughor Estuary Dwr Cymru Welsh Water 438 155 5,136 2,052
149 River Roch United Utilities 906 41 5,095 -748
150 River Brue Wessex Water 378 160 5,085 2,430
151 Nant Cledlyn Dwr Cymru Welsh Water 353 -13 5,012 731
152 North Sea Scottish Water 634 17 4,999 3,390
153 Burton Brook Severn Trent Water 451 214 4,966 3,576
154 Unnamed Ditch Dwr Cymru Welsh Water 346 140 4,953 2,079
155 River Allen South West Water 514 164 4,946 2,590
156 Ladywell Burn Scottish Water 18 3 4,887 2,394
157 Tidal River Ouse Southern Water 249 99 4,855 2,423
158 River Blyth Northumbrian Water 565 310 4,854 3,950
159 River Cam Wessex Water 365 198 4,840 3,409
160 Salcombe Regis Stream South West Water 223 223 4,827 4,827
161 Chichester Harbour Southern Water 292 185 4,764 3,306
162 River Teme Severn Trent Water 529 32 4,750 2,420
163 River Wampool United Utilities 407 146 4,708 1,862
164 River Cadnant Dwr Cymru Welsh Water 315 91 4,668 1,841
165 Evenlode Thames Water 298 167 4,665 3,373
166 Harbeton Stream South West Water 327 67 4,659 640
167 Chapel Beck United Utilities 277 6 4,648 -113
168 River Brede Southern Water 331 161 4,641 2,373
169 River Great Ouse Anglian Water 527 217 4,636 2,611
170 River Walkham South West Water 298 -17 4,613 -627
171 River Medina Southern Water 527 213 4,609 2,555
172 River Thaw Dwr Cymru Welsh Water 324 180 4,591 3,181
173 River Lledr Dwr Cymru Welsh Water 248 73 4,581 1,631
174 River Tywi Dwr Cymru Welsh Water 457 170 4,574 2,824
175 Bullclose Beck United Utilities 230 62 4,560 1,645
176 Pennington Brook United Utilities 247 189 4,526 3,948
177 River Mease Severn Trent Water 383 173 4,521 2,039
178 River Axe South West Water 663 222 4,519 2,150
179 River Afan Dwr Cymru Welsh Water 672 88 4,514 1,080
180 River Tavy South West Water 649 223 4,507 1,829
181 Holy Loch Scottish Water 210 -78 4,488 1,293
182 Unnamed Stream Dwr Cymru Welsh Water 753 302 4,488 2,191
183 Dubwath Beck United Utilities 304 50 4,432 790
184 River Tay Scottish Water 133 116 4,427 4,373
185 River Cresswell Dwr Cymru Welsh Water 237 58 4,422 1,870
186 River Ebbw Dwr Cymru Welsh Water 647 118 4,412 933
187 River Goedol Dwr Cymru Welsh Water 333 96 4,395 1,382
188 Thornton Beck Yorkshire Water 427 159 4,385 2,752
189 Forth Estuary Scottish Water 248 114 4,347 1,853
190 River Isle Wessex Water 386 153 4,339 2,016
191 River Bran Dwr Cymru Welsh Water 428 91 4,334 1,327
192 River Tweed Scottish Water 217 41 4,332 1,787
193 River Ewenni Dwr Cymru Welsh Water 198 73 4,299 1,471
194 River Went Yorkshire Water 269 140 4,285 2,946
195 River Annan Scottish Water 371 -12 4,280 -832
196 River Tyne Northumbrian Water 1,174 401 4,256 2,778
197 Luckington Brook Wessex Water 212 82 4,255 1,514
198 River Piddle Wessex Water 191 169 4,241 3,838
199 Shotts Burn Scottish Water 301 56 4,236 611
200 River Marden Wessex Water 350 180 4,230 2,427
201 South Calder Water Scottish Water 265 21 4,214 973
202 Unnamed W/C Dwr Cymru Welsh Water 267 140 4,207 4,114
203 River Cynin Dwr Cymru Welsh Water 309 159 4,207 2,799
204 River Dart South West Water 510 148 4,205 2,096
205 River Towy Dwr Cymru Welsh Water 716 149 4,186 1,491
206 River Greta United Utilities 370 44 4,161 1,324
207 Carew River Dwr Cymru Welsh Water 234 107 4,160 2,281
208 Avon Water Scottish Water 553 11 4,144 674
209 Congresbury Yeo Wessex Water 238 179 4,135 3,483
210 Aller Brook South West Water 457 115 4,098 1,795
211 River Keer United Utilities 253 133 4,097 2,285
212 Caundle Brook Wessex Water 294 170 4,080 2,359
213 River Nevern Dwr Cymru Welsh Water 281 52 4,077 1,643
214 Gleaston Beck United Utilities 173 74 4,066 1,830
215 River Yarrow United Utilities 693 59 4,060 998
216 Tockington Mill Rhine Wessex Water 241 212 4,052 3,608
217 River Avon Via Sws Wessex Water 1,722 595 4,033 2,591
218 River Douglas United Utilities 785 266 4,032 727
219 River Clwyd Dwr Cymru Welsh Water 384 167 4,005 2,287
220 Loxwood Stream Southern Water 209 100 3,985 2,343
221 River Fal South West Water 463 123 3,983 1,055
222 Eagley Brook United Utilities 643 355 3,981 2,819
223 Bristol Avon Wessex Water 241 145 3,973 2,540
224 River Neath Dwr Cymru Welsh Water 727 161 3,963 1,584
225 River Balder Northumbrian Water 283 244 3,951 3,831
226 River Bray South West Water 178 178 3,939 3,939
227 River Tyweli Dwr Cymru Welsh Water 177 76 3,938 1,923
228 Deep Meadows Beck United Utilities 235 99 3,938 1,278
229 Hillfarrance Brook Wessex Water 400 167 3,923 2,669
230 River Rhee Anglian Water 323 190 3,884 3,480
231 Alfreton Brook Severn Trent Water 399 163 3,869 2,487
232 R Severn Severn Trent Water 206 146 3,868 3,061
233 Cosheston Pill Dwr Cymru Welsh Water 321 58 3,857 1,447
234 River Eden Scottish Water 355 298 3,856 2,371
235 Bourne Brook Severn Trent Water 296 173 3,855 3,026
236 Quinny Brook Severn Trent Water 177 123 3,852 2,835
237 River Don Northumbrian Water 577 203 3,850 2,277
238 Bevern Stream Southern Water 267 113 3,843 1,885
239 River Ise Anglian Water 428 180 3,834 2,134
240 Dart Estuary South West Water 263 88 3,813 1,032
241 River Dane United Utilities 647 311 3,813 3,005
242 Severn Estuary Wessex Water 266 137 3,803 2,433
243 River Axe Wessex Water 277 189 3,800 2,674
244 River Mole Thames Water 282 119 3,796 1,681
245 Unnamed Of Harley Dyke Yorkshire Water 198 99 3,789 2,759
246 River Derwent Northumbrian Water 570 124 3,787 1,917
247 Kingston Brook Severn Trent Water 258 131 3,781 2,349
248 River Colne Anglian Water 431 193 3,778 2,895
249 Arrowe Brook United Utilities 327 239 3,777 3,697
250 River Croal United Utilities 716 220 3,774 1,792
251 River Thrushel South West Water 415 144 3,765 882
252 Costa Beck Yorkshire Water 392 152 3,758 2,195
253 River Tove Anglian Water 349 248 3,749 3,137
254 River Gaunless Northumbrian Water 304 109 3,735 2,332
255 River Cynllo Dwr Cymru Welsh Water 184 44 3,725 1,225
256 Little Dart River South West Water 366 159 3,724 2,371
257 Rea Brook Severn Trent Water 463 183 3,722 2,114
258 River Meon Southern Water 211 130 3,717 2,498
259 Carlton Beck Severn Trent Water 227 142 3,700 2,562
260 Sydling Water Wessex Water 171 109 3,689 2,545
261 Newton Brook United Utilities 324 258 3,664 3,259
262 Blea Beck United Utilities 178 74 3,662 1,688
263 Nant Clydach Dwr Cymru Welsh Water 642 103 3,649 1,068
264 Cam Brook Wessex Water 543 200 3,640 2,088
265 Derril Water South West Water 202 63 3,640 1,178
266 Etchilhampton Water Wessex Water 162 91 3,627 2,294
267 Bashall Brook United Utilities 212 61 3,624 962
268 River Witham Anglian Water 279 85 3,622 1,797
269 Beckamoor Brook South West Water 170 155 3,601 3,282
270 Foudry Brook Thames Water 174 80 3,594 1,870
271 Kennet Thames Water 288 247 3,591 3,163
272 Blockley Brook Severn Trent Water 182 25 3,542 243
273 Holbeck Yorkshire Water 314 -6 3,533 1,613
274 Gauze Brook Wessex Water 195 101 3,532 2,376
275 River Leam Severn Trent Water 338 128 3,521 2,611
276 Knowle Water South West Water 186 112 3,487 2,599
277 Lidsey Rife Southern Water 164 86 3,485 1,906
278 River Sirhowy Dwr Cymru Welsh Water 970 101 3,480 648
279 River Rhondda Dwr Cymru Welsh Water 678 186 3,479 1,550
280 Pulham River South West Water 177 166 3,439 3,389
281 Woodbury Brook South West Water 281 125 3,424 1,780
282 By Brook Wessex Water 348 163 3,414 2,485
283 River Dulas Dwr Cymru Welsh Water 329 52 3,413 2,115
284 Smallhope Burn Northumbrian Water 500 197 3,410 2,418
285 River Dart Estuary South West Water 400 -197 3,409 1,744
286 River Coln Thames Water 162 97 3,391 2,367
287 Church Beck United Utilities 178 24 3,389 333
288 Crummock Beck United Utilities 231 -17 3,389 92
289 River Arrow Severn Trent Water 399 191 3,368 1,964
290 River Cwm-Waun-Gron Dwr Cymru Welsh Water 163 55 3,366 1,287
291 River Sannan Dwr Cymru Welsh Water 233 60 3,362 1,624
292 River Boyd Wessex Water 247 108 3,357 2,214
293 Tyne Estuary Northumbrian Water 1,319 277 3,348 1,355
294 River Calder And Hebble Brook Yorkshire Water 337 109 3,347 1,868
295 Loch Linnhe Scottish Water 650 124 3,340 2,284
296 River Lew South West Water 385 -147 3,335 514
297 Swinnel Brook United Utilities 239 195 3,330 3,226
298 River Cothi Dwr Cymru Welsh Water 180 132 3,328 2,754
299 Coles Stream South West Water 257 75 3,322 463
300 Burry Pill Dwr Cymru Welsh Water 214 87 3,308 1,316
301 River Teifi Estuary Dwr Cymru Welsh Water 314 16 3,308 507
302 Harbourne River South West Water 160 58 3,308 1,166
303 River Avon South West Water 390 131 3,307 2,129
304 Holy Brook South West Water 263 32 3,307 1,096
305 Walney Channel United Utilities 489 131 3,305 1,992
306 Brampton Branch River Nene Anglian Water 229 146 3,301 2,816
307 Eastern Yar Southern Water 244 125 3,299 2,336
308 River Lash Dwr Cymru Welsh Water 221 33 3,292 428
309 Pont Northumbrian Water 361 195 3,291 2,539
310 Green Brook United Utilities 183 183 3,290 3,290
311 River Lynher South West Water 288 -24 3,278 853
312 River Wen Dwr Cymru Welsh Water 215 99 3,275 2,002
313 Nant Medini Dwr Cymru Welsh Water 260 35 3,253 1,016
314 Halwell Stream South West Water 322 190 3,252 2,398
315 Downmeadow Brook Severn Trent Water 287 90 3,249 1,553
316 Wyke Beck And River Aire Yorkshire Water 211 0 3,227 1,461
317 River Swift Severn Trent Water 298 100 3,226 1,379
318 River Anker Severn Trent Water 563 61 3,221 785
319 Neath Estuary Dwr Cymru Welsh Water 257 82 3,203 1,987
320 Hanwell Brook Thames Water 278 180 3,198 2,630
321 Congresbury Yeo And Butcombe Wessex Water 167 128 3,188 2,532
322 River Fowey South West Water 220 119 3,180 1,958
323 Lustrum Beck Northumbrian Water 545 188 3,174 1,750
324 River Yar Southern Water 272 129 3,173 1,718
325 Hardwick Brook Thames Water 162 55 3,166 1,234
326 River Cleddau Dwr Cymru Welsh Water 153 20 3,161 627
327 Burghmoor Beck United Utilities 217 -228 3,157 -3,121
328 Halfacre Brook Thames Water 150 110 3,156 2,614
329 River Irk United Utilities 1,126 274 3,153 -1,618
330 Wellow Brook Wessex Water 577 193 3,153 1,776
331 Hebble Brook Yorkshire Water 515 78 3,148 1,779
332 Barton Brook United Utilities 188 47 3,140 869
333 Sherford Stream South West Water 262 45 3,131 1,878
334 River Cammarch Dwr Cymru Welsh Water 211 21 3,125 1,265
335 Roughton Beck United Utilities 176 50 3,114 1,661
336 River Wyre United Utilities 361 106 3,107 2,143
337 The Minch Scottish Water 453 96 3,086 -69
338 Kyles of Bute Scottish Water 477 -292 3,079 946
339 River Cuckmere Southern Water 246 148 3,066 1,773
340 Menai Strait Dwr Cymru Welsh Water 394 149 3,063 1,831
341 Hicks Mill Stream South West Water 207 70 3,055 1,169
342 Penryn River South West Water 576 182 3,036 1,591
343 Estuarial Waters Of Swansea Ba Dwr Cymru Welsh Water 228 85 3,029 1,644
344 Mells River Wessex Water 321 134 3,020 1,298
345 River Gwyrfai Dwr Cymru Welsh Water 358 66 3,016 679
346 River Garnant Dwr Cymru Welsh Water 239 36 2,999 1,144
347 Ridgewood Stream Southern Water 160 50 2,992 1,080
348 Counterdrain River Nene T Anglian Water 236 170 2,957 2,360
349 Mersey Estuary United Utilities 805 -272 2,954 -7,359
350 Rhondda Fawr Dwr Cymru Welsh Water 662 106 2,954 887
351 River Crake United Utilities 224 60 2,944 999
352 Little Mere River South West Water 247 71 2,931 869
353 Nant-Y-Ci, The Ogwr Fawr Dwr Cymru Welsh Water 187 56 2,920 1,184
354 River Noe Severn Trent Water 235 99 2,919 1,572
355 Forcett Beck Northumbrian Water 221 70 2,915 1,804
356 Stream Dyke Yorkshire Water 157 157 2,910 2,910
357 River Dulyn Dwr Cymru Welsh Water 170 43 2,905 739
358 Bedale Beck Yorkshire Water 302 195 2,904 1,987
359 River Duad Dwr Cymru Welsh Water 171 33 2,899 975
360 Penpont Water South West Water 145 -15 2,898 545
361 Langham Lake South West Water 254 12 2,898 -127
362 Gaunless Northumbrian Water 383 155 2,896 2,051
363 Mylor Creek South West Water 231 -13 2,891 1,252
364 Mag Brook Yorkshire Water 212 49 2,888 1,424
365 Black Dike Yorkshire Water 195 101 2,888 2,033
366 River Teify Dwr Cymru Welsh Water 183 19 2,888 608
367 Shorncote Ditch Thames Water 165 98 2,870 2,464
368 River Dean United Utilities 563 202 2,864 1,323
369 Shill Brook Thames Water 196 135 2,861 2,170
370 Clay Hill Brook Thames Water 132 76 2,861 1,730
371 Coquet Northumbrian Water 216 60 2,860 1,477
372 River North Tyne Northumbrian Water 230 55 2,855 248
373 River Llan Dwr Cymru Welsh Water 486 112 2,848 959
374 Unnamed Watercourse To River Goch Dwr Cymru Welsh Water 243 133 2,842 1,487
375 River Glaze United Utilities 367 105 2,837 -305
376 Kingston Stream South West Water 141 53 2,835 1,096
377 Kyln Clough, R Lostock United Utilities 172 62 2,833 1,682
378 Boddington Canal Feeder Thames Water 159 105 2,833 2,092
379 River Erme South West Water 168 -64 2,831 727
380 River Kym Anglian Water 235 123 2,822 1,557
381 Gore Brook United Utilities 157 149 2,821 2,785
382 Denholme Beck Yorkshire Water 277 125 2,802 2,134
383 Of Combe Lake South West Water 186 186 2,800 2,800
384 East Loch Tarbert Scottish Water 72 10 2,798 -85
385 River Tweed Northumbrian Water 589 112 2,779 1,699
386 River Gipping Anglian Water 204 132 2,774 1,907
387 River Lumburn South West Water 138 39 2,771 732
388 Tyne Saline Estuary Northumbrian Water 590 223 2,771 1,784
389 Lymington River Southern Water 239 107 2,770 1,762
390 Windrush Thames Water 131 121 2,769 2,635
391 River Alyn Dwr Cymru Welsh Water 646 250 2,761 1,748
392 Blyth Saline Estuary Northumbrian Water 158 82 2,760 1,678
393 Ampney Brook Thames Water 130 82 2,759 1,814
394 River Bovey South West Water 205 87 2,754 1,291
395 Bridge House Beck Yorkshire Water 166 99 2,752 2,114
396 Bolingey Stream South West Water 193 75 2,749 1,261
397 River Lliw Dwr Cymru Welsh Water 511 130 2,746 645
398 Team Northumbrian Water 523 237 2,735 2,093
399 River Clun Dwr Cymru Welsh Water 274 53 2,734 1,402
400 Scotsgrove Brook Thames Water 164 81 2,733 1,284
401 River Leven Northumbrian Water 433 238 2,727 1,595
402 Caul Bourne Southern Water 172 103 2,725 2,056
403 Cartlet Brook Dwr Cymru Welsh Water 218 -9 2,720 931
404 Spratford Stream South West Water 217 102 2,717 2,246
405 Moorhouse Beck Severn Trent Water 162 141 2,716 2,612
406 Dean Brook United Utilities 257 78 2,715 961
407 River Taw South West Water 315 78 2,712 778
408 River Itchen Severn Trent Water 281 74 2,704 547
409 Abberd Brook Wessex Water 133 109 2,700 2,324
410 River Wreake Severn Trent Water 368 38 2,686 850
411 Angle Bay Dwr Cymru Welsh Water 147 140 2,674 2,563
412 Don Northumbrian Water 564 222 2,673 1,561
413 River Tame Severn Trent Water 795 80 2,673 892
414 Coombe Valley Stream South West Water 141 70 2,667 1,384
415 Black Brook River South West Water 180 168 2,667 2,463
416 Ebbw Fawr Dwr Cymru Welsh Water 461 120 2,664 1,905
417 Car Dyke Severn Trent Water 281 204 2,658 2,142
418 Scour Gutter Yorkshire Water 252 116 2,657 1,827
419 Smithy Brook Yorkshire Water 251 61 2,655 1,329
420 River Gwendraeth Fach Dwr Cymru Welsh Water 128 128 2,654 2,654
421 Tang Hall Beck Yorkshire Water 295 130 2,645 1,397
422 Stour Wessex Water 172 150 2,639 2,497
423 Unnamed Culverted Watercourse Anglian Water 125 102 2,637 2,301
424 Hazelbeach Stream Dwr Cymru Welsh Water 269 27 2,629 2,138
425 River Keekle United Utilities 354 127 2,627 334
426 Black Brook Yorkshire Water 338 168 2,625 2,111
427 River Mellte Dwr Cymru Welsh Water 213 36 2,625 797
428 Firth of Clyde Scottish Water 449 53 2,625 -102
429 Mires Brook Severn Trent Water 237 144 2,617 951
430 River Aln Northumbrian Water 331 181 2,617 2,237
431 River Poulter Severn Trent Water 217 98 2,612 1,910
432 Danes Brook Thames Water 157 125 2,606 2,208
433 River Crane Wessex Water 162 135 2,587 2,480
434 Coal Burn Northumbrian Water 221 -88 2,584 -2,449
435 Tyddyn Drain To Coastal Waters Dwr Cymru Welsh Water 175 48 2,572 1,057
436 Un-named tributary of River Nith Scottish Water 257 -36 2,570 -576
437 Mill Brook Thames Water 162 151 2,568 2,514
438 Kingsclere Brook Thames Water 134 66 2,562 1,450
439 Un-Named Watercourse Dwr Cymru Welsh Water 438 98 2,561 1,272
440 Malpas Brook Dwr Cymru Welsh Water 322 113 2,558 1,011
441 Porset Brook Dwr Cymru Welsh Water 183 47 2,557 1,406
442 Lugar Water Scottish Water 125 23 2,555 170
443 Hawkridge Brook South West Water 160 65 2,553 759
444 Dulas Dwr Cymru Welsh Water 157 104 2,547 1,906
445 Oakhanger Stream Thames Water 147 107 2,546 2,127
446 River Conwy Dwr Cymru Welsh Water 661 141 2,535 410
447 Culverted, River Tawe Dwr Cymru Welsh Water 185 58 2,520 976
448 River North Petteril United Utilities 146 52 2,514 567
449 Marlais Dwr Cymru Welsh Water 158 56 2,502 1,026
450 Old River Bain Anglian Water 146 92 2,501 2,301
451 River Wylye Wessex Water 160 143 2,485 2,367
452 Southampton Water Southern Water 193 105 2,483 1,729
453 Bay of Firth Scottish Water 1,053 427 2,480 -93
454 River Geirch Dwr Cymru Welsh Water 406 204 2,480 1,336
455 Skeffling Clough Drain Yorkshire Water 147 68 2,467 1,622
456 Black Beck United Utilities 201 32 2,465 941
457 River Brit Wessex Water 304 112 2,447 1,377
458 River East Allen Northumbrian Water 123 -19 2,443 -248
459 O Riv.Teign Via Sw Sewer South West Water 119 26 2,441 413
460 River Esk Yorkshire Water 555 86 2,435 1,130
461 River Grannell Dwr Cymru Welsh Water 276 136 2,425 1,656
462 River Kennall South West Water 153 54 2,411 1,304
463 Sirhowy River Dwr Cymru Welsh Water 640 74 2,403 605
464 River Wey Thames Water 196 53 2,401 656
465 River Cary Wessex Water 150 71 2,399 1,286
466 River Itchen Southern Water 237 140 2,397 1,440
467 Stanbridge Stream Southern Water 127 111 2,394 2,266
468 River Sheppey Wessex Water 239 110 2,393 1,744
469 Pagham Rife Southern Water 129 67 2,388 1,366
470 Tidal Ouse Yorkshire Water 190 55 2,376 1,333
471 Harome Moor Drain Yorkshire Water 149 59 2,369 1,252
472 Clancutt Brook United Utilities 230 151 2,367 722
473 River Ken South West Water 126 71 2,354 1,533
474 River Lyd Severn Trent Water 234 126 2,345 1,182
475 River Cale Wessex Water 203 120 2,340 1,649
476 Seaton Channel Northumbrian Water 153 56 2,333 1,521
477 River Llwyd Dwr Cymru Welsh Water 155 39 2,332 782
478 River Humber Anglian Water 466 159 2,317 1,529
479 Misbourne Thames Water 121 55 2,314 1,108
480 River Grom Southern Water 239 73 2,312 1,177
481 River Morgenau Dwr Cymru Welsh Water 147 22 2,310 171
482 Glynde Reach Southern Water 177 51 2,308 755
483 Rhondda River Fawr Dwr Cymru Welsh Water 186 6 2,299 585
484 River Myddyfi Dwr Cymru Welsh Water 160 36 2,298 606
485 Warslow Brook Severn Trent Water 170 82 2,296 1,377
486 Hatfield Heath Watercourse Thames Water 120 50 2,289 1,055
487 Galloper Pool United Utilities 166 -30 2,275 -2,191
488 Long Sutton Catchwater Wessex Water 101 72 2,273 1,614
489 River Iwerne Wessex Water 124 103 2,272 2,147
490 Cunlease Rhyne Wessex Water 119 29 2,271 783
491 River Sett United Utilities 175 81 2,264 1,266
492 River Brant Anglian Water 117 70 2,263 1,477
493 River Waver United Utilities 212 18 2,259 515
494 River Nent Northumbrian Water 273 143 2,254 1,965
495 River Arth Dwr Cymru Welsh Water 282 52 2,249 809
496 Ellhirst Beck Yorkshire Water 134 48 2,246 1,296
497 River Kird Southern Water 140 69 2,241 1,535
498 Congresbury Yeo, Lake Wessex Water 113 44 2,233 982
499 Cholwell Brook South West Water 120 17 2,231 393
500 River Dene Severn Trent Water 388 99 2,229 868
501 West Cleddua Dwr Cymru Welsh Water 128 70 2,224 1,875
502 Kirkgunzeon Lane Scottish Water 105 -8 2,223 -1,824
503 Cottered Brook Thames Water 114 46 2,222 1,211
504 Hooton Brook Yorkshire Water 278 50 2,220 545
505 Wyre Estuary United Utilities 157 80 2,214 1,396
506 Hetton Beck Yorkshire Water 163 54 2,206 1,712
507 Curbridge Ditch Thames Water 119 72 2,206 1,487
508 River Rhydyfallen Dwr Cymru Welsh Water 118 118 2,202 2,202
509 Warpsgrave Ditch Thames Water 132 101 2,201 1,864
510 River Lugg Dwr Cymru Welsh Water 271 80 2,198 191
511 Birkin Brook United Utilities 227 155 2,196 2,147
512 Tremar Stream South West Water 117 58 2,187 1,377
513 Ewenny Fach Dwr Cymru Welsh Water 191 73 2,182 1,514
514 Brookhouse Brook Thames Water 186 67 2,178 1,175
515 River Crafnant Dwr Cymru Welsh Water 132 61 2,168 1,148
516 Great Stour Southern Water 239 115 2,161 1,550
517 Doniford Stream Wessex Water 193 84 2,160 1,282
518 Ouzel Brook Anglian Water 126 109 2,160 2,044
519 River Chelmer Anglian Water 228 148 2,158 1,722
520 Ditton Brook United Utilities 255 98 2,156 774
521 Weston Mill Lake South West Water 199 47 2,151 458
522 Ure Yorkshire Water 143 69 2,151 1,412
523 River Lostock United Utilities 458 190 2,149 1,662
524 Coombe Stream South West Water 125 31 2,149 785
525 Nettleham Beck Anglian Water 116 33 2,148 1,447
526 Littlestock Brook Thames Water 126 53 2,141 1,160
527 Duddon Estuary United Utilities 188 49 2,141 1,479
528 Whilton Branch R Nene Anglian Water 137 78 2,136 1,784
529 Birdwell Dyke Yorkshire Water 149 72 2,135 1,448
530 River Gwenlais Dwr Cymru Welsh Water 312 42 2,134 357
531 Lowthorpe Beck Yorkshire Water 112 107 2,132 2,131
532 Unknown Loughor Estuary Dwr Cymru Welsh Water 113 64 2,129 1,702
533 River Skerne Northumbrian Water 469 118 2,127 1,306
534 River Darwen United Utilities 767 -46 2,119 -1,714
535 Redleadmill Brook Yorkshire Water 140 76 2,115 1,842
536 Lavister Brook Dwr Cymru Welsh Water 172 137 2,113 1,805
537 Hampshire Avon River Wessex Water 109 79 2,110 1,738
538 Windermoor Main Drain United Utilities 185 44 2,108 552
539 River Artro Dwr Cymru Welsh Water 186 139 2,108 1,721
540 River Cole Thames Water 103 67 2,106 1,476
541 River Allan Scottish Water 305 49 2,103 616
542 Rowsham Brook Thames Water 156 58 2,103 586
543 River Eden Southern Water 178 82 2,102 1,129
544 Deerness Northumbrian Water 229 160 2,102 1,926
545 River Taf, Via Surface Water Sewer Dwr Cymru Welsh Water 114 46 2,098 895
546 Llandow Brook Dwr Cymru Welsh Water 109 71 2,096 1,593
547 River Foss Yorkshire Water 322 86 2,096 1,138
548 Pottery Stream Thames Water 133 118 2,095 1,931
549 Silverbridge Lake South West Water 150 62 2,094 807
550 Bottle Brook Severn Trent Water 413 124 2,093 816
551 River Colne Thames Water 115 64 2,092 1,290
552 Marske Beck Yorkshire Water 164 35 2,090 470
553 Tidal River Tamar South West Water 150 30 2,088 687
554 Ray Brook Southern Water 124 72 2,085 1,436
555 Ladden Brook Wessex Water 104 83 2,079 1,786
556 River Churnet Severn Trent Water 527 11 2,078 210
557 Wheatley Ditch Thames Water 124 83 2,077 1,510
558 River Kennal South West Water 94 94 2,075 2,075
559 Silchester Brook Thames Water 114 113 2,070 2,069
560 Tarra Carr Gutter United Utilities 146 41 2,063 927
561 River Tale South West Water 171 51 2,062 757
562 St Neot River South West Water 272 43 2,062 820
563 Aberdraw Stream Dwr Cymru Welsh Water 162 27 2,059 1,075
564 Diddington Brook Anglian Water 120 93 2,054 1,721
565 Ramsey High Lode Anglian Water 144 106 2,052 1,522
566 River Denys Dwr Cymru Welsh Water 109 18 2,050 222
567 River Twrch Dwr Cymru Welsh Water 162 119 2,046 1,769
568 Shovelstrode Stream Southern Water 103 52 2,039 1,165
569 River Itchen Estuary Southern Water 201 121 2,038 1,399
570 Blower'S Brook Severn Trent Water 151 83 2,037 1,277
571 Soutergate Beck United Utilities 127 62 2,036 1,452
572 Causey Burn Northumbrian Water 226 60 2,034 897
573 River Devon Severn Trent Water 251 38 2,034 394
574 Rookhope Burn Northumbrian Water 167 56 2,033 1,144
575 Mawddach Dwr Cymru Welsh Water 118 32 2,030 746
576 Cunsey Beck United Utilities 104 37 2,028 722
577 River Dudwell Southern Water 126 101 2,026 1,681
578 Ditch Dwr Cymru Welsh Water 135 40 2,026 927
579 River Bure - Tidal Anglian Water 105 76 2,017 1,850
580 Deepford Brook Dwr Cymru Welsh Water 116 50 2,015 965
581 Kingsbury Brook Severn Trent Water 117 64 2,015 1,275
582 River Barle South West Water 264 31 2,015 94
583 Abbotsbury Brook Wessex Water 98 74 2,014 1,945
584 River Wye Estuary Dwr Cymru Welsh Water 353 208 2,011 1,649
585 River Teise Southern Water 203 71 2,007 1,206
586 River Tonge United Utilities 342 85 2,002 1,549
587 Full Brook Severn Trent Water 311 83 2,002 935
588 River Tyne Scottish Water 107 -8 2,001 599
589 Holmwood Stm Leigh Brk Thames Water 118 46 1,997 943
590 Salteye Brook United Utilities 281 203 1,997 843
591 Fosse Way Brook Severn Trent Water 127 66 1,994 1,094
592 Aber Bach Dwr Cymru Welsh Water 109 41 1,991 945
593 Calverton Brook Anglian Water 103 62 1,991 1,306
594 Mill Avon Severn Trent Water 147 28 1,986 876
595 Winestead Drain Yorkshire Water 177 115 1,980 1,681
596 Bow Brook Thames Water 183 108 1,976 1,345
597 River Wenning United Utilities 302 119 1,971 1,066
598 River Lathkill Severn Trent Water 130 46 1,969 904
599 Haw Beck Yorkshire Water 123 55 1,968 1,384
600 Nuthurst Stream Southern Water 127 50 1,961 809
601 Cander Water Scottish Water 478 126 1,961 647
602 River Mersey Estuary/River Birket United Utilities 150 2 1,950 771
603 Astley Brook United Utilities 546 361 1,946 1,465
604 River Kensey South West Water 240 10 1,945 -14
605 Limb Brook Thames Water 96 22 1,944 461
606 Chinnock Brook Wessex Water 172 80 1,941 1,178
607 Liverton Brook South West Water 110 46 1,940 984
608 Nant Verwig Dwr Cymru Welsh Water 91 85 1,939 1,918
609 River Nadder Wessex Water 147 128 1,937 1,883
610 Nant Collen Dwr Cymru Welsh Water 130 82 1,937 1,100
611 Sankey Brook United Utilities 404 -70 1,935 -1,433
612 Bishop Wilton Beck Yorkshire Water 173 84 1,932 1,488
613 Nant Glaswg Dwr Cymru Welsh Water 116 54 1,931 887
614 Pow Burn Northumbrian Water 105 68 1,928 1,615
615 Small Brook Wessex Water 156 94 1,928 1,186
616 River Rede Northumbrian Water 125 125 1,927 1,927
617 River Ant Anglian Water 119 -20 1,925 -610
618 Barnham Rife Southern Water 137 80 1,925 942
619 Ford Brook South West Water 96 32 1,921 748
620 Pendle Water United Utilities 416 114 1,921 -1,267
621 River Lethi Dwr Cymru Welsh Water 115 23 1,920 647
622 Goddens Gill Southern Water 109 51 1,916 1,135
623 Dee Estuary Dwr Cymru Welsh Water 381 180 1,916 1,417
624 Nunney Brook Wessex Water 139 87 1,912 1,325
625 Skitter Beck Anglian Water 121 49 1,906 1,155
626 River Alt United Utilities 257 95 1,905 1,169
627 Middleton Burn Northumbrian Water 128 128 1,903 1,903
628 Cadnant Dwr Cymru Welsh Water 166 71 1,903 972
629 Trusham Stream South West Water 134 119 1,901 1,576
630 Nidon Rhyne Wessex Water 89 53 1,901 1,185
631 River Ore Anglian Water 146 105 1,900 1,702
632 River Glaslyn Dwr Cymru Welsh Water 216 -138 1,899 -2,395
633 River Browney Northumbrian Water 411 122 1,899 1,417
634 Westwood Brook Severn Trent Water 166 58 1,898 686
635 White Dike Yorkshire Water 109 27 1,896 1,615
636 Nunn Brook Severn Trent Water 194 36 1,896 985
637 River Medlock United Utilities 314 -45 1,887 1,017
638 River Cledan Dwr Cymru Welsh Water 108 96 1,882 1,830
639 Dockerell Brook River Great Ou Anglian Water 101 48 1,881 1,312
640 River Ryton Severn Trent Water 137 48 1,880 1,034
641 South Winterbourne Wessex Water 172 123 1,875 1,595
642 Crimple Beck Yorkshire Water 237 82 1,867 954
643 Julian'S Pill Dwr Cymru Welsh Water 267 20 1,867 1,066
644 River Dove Yorkshire Water 371 22 1,866 -384
645 Un River Witham Anglian Water 91 55 1,865 1,118
646 Wince Brook United Utilities 473 160 1,854 681
647 Tyelaw Burn Northumbrian Water 149 102 1,854 1,679
648 Erewash Canal Severn Trent Water 142 79 1,851 1,624
649 Ginge Brook Thames Water 116 84 1,851 1,348
650 Hall Lee Brook United Utilities 214 67 1,850 -34
651 River Leen Severn Trent Water 519 221 1,847 1,200
652 Teviot Water Scottish Water 57 18 1,847 623
653 Bow Brook Severn Trent Water 222 -42 1,846 -726
654 River Pol South West Water 116 29 1,845 381
655 River Clydach Dwr Cymru Welsh Water 417 76 1,841 461
656 Wellahms Brook Wessex Water 128 91 1,836 1,724
657 Gotham Brook Severn Trent Water 100 89 1,836 1,775
658 M/C Ship Canal United Utilities 174 -8 1,834 -1,391
659 Summerstown Ditch Thames Water 99 35 1,833 637
660 Ferryside Stream Dwr Cymru Welsh Water 171 49 1,829 1,033
661 Bonny Water Scottish Water 152 36 1,827 705
662 River Bargoed Dwr Cymru Welsh Water 229 -32 1,826 -793
663 Glassonby Beck United Utilities 192 192 1,825 1,825
664 Long Eau Anglian Water 138 99 1,819 1,551
665 River Frome Dwr Cymru Welsh Water 277 108 1,815 1,263
666 Dubbs Gutter United Utilities 151 -26 1,812 -499
667 Hertford Yorkshire Water 122 35 1,811 799
668 Belford Burn Northumbrian Water 181 51 1,807 867
669 Tang Beck Yorkshire Water 107 29 1,806 660
670 River Brett Anglian Water 238 190 1,805 1,698
671 Thames Estuary Anglian Water 566 430 1,803 1,228
672 Barbauchlaw Burn Scottish Water 52 1 1,802 -828
673 River Beal United Utilities 136 52 1,799 1,014
674 Keysoe Brook. River Kym Anglian Water 99 53 1,799 1,028
675 Lox Yeo Wessex Water 115 71 1,795 1,303
676 River Lune Estuary United Utilities 134 104 1,793 1,725
677 Matty Beck United Utilities 108 7 1,791 1,567
678 Unnamed Coastal Stream South West Water 146 -17 1,791 336
679 Nant Cwm Croes Y Ceiliog Dwr Cymru Welsh Water 115 66 1,791 1,474
680 Hummer Beck Northumbrian Water 115 27 1,790 1,712
681 Bullow Brook South West Water 116 60 1,788 831
682 Barrow Clough/Pendleton Brook United Utilities 129 -14 1,786 -141
683 Couston Water Scottish Water 114 51 1,784 -55
684 Thorpe Brook River Nene Anglian Water 101 43 1,784 875
685 Gilt Brook Severn Trent Water 204 90 1,779 1,008
686 Black Pool Brook Severn Trent Water 147 116 1,773 1,614
687 Bradwell Brook Severn Trent Water 114 26 1,771 288
688 Mole Thames Water 129 72 1,769 796
689 Ebbw River Dwr Cymru Welsh Water 385 103 1,768 505
690 Holmesfield Brook Yorkshire Water 123 57 1,764 1,015
691 Glynch Brook Severn Trent Water 110 83 1,763 1,299
692 The String Scottish Water 253 35 1,762 314
693 Chichester Harbour Channel Southern Water 105 60 1,762 971
694 Pool Stream United Utilities 156 39 1,761 529
695 Broadhempston Stream South West Water 87 -26 1,760 711
696 Culverted Pendle Water United Utilities 78 78 1,754 1,754
697 Whissendine Brook Severn Trent Water 163 -265 1,750 -5,524
698 River Bela United Utilities 88 62 1,748 1,450
699 Hilden Brook Southern Water 158 48 1,740 768
700 Kittoch Water Scottish Water 155 -293 1,737 -5,123
701 Walgrave Brook Anglian Water 102 97 1,734 1,684
702 Marcham Brook Thames Water 121 102 1,734 1,660
703 Cherwell Thames Water 160 75 1,733 981
704 Pound Street Brook Thames Water 111 67 1,731 1,137
705 Afan Daulan Dwr Cymru Welsh Water 100 82 1,724 1,527
706 New Stream Ditch Southern Water 193 103 1,722 1,118
707 River Ribble Estuary United Utilities 187 80 1,722 990
708 Cradley Brook Severn Trent Water 165 -17 1,721 -218
709 Forton Brook South West Water 148 51 1,719 920
710 Bartley Water Southern Water 189 90 1,716 1,029
711 Tideswell Brook Severn Trent Water 128 29 1,712 533
712 Morecambe Bay Esturiane Waters United Utilities 101 23 1,712 796
713 Payhembury Stream South West Water 174 -117 1,708 -517
714 Right Bank Of River Twrch Dwr Cymru Welsh Water 131 31 1,708 373
715 Fovant Brook Wessex Water 139 81 1,707 1,133
716 Stromford Brook United Utilities 333 48 1,702 514
717 Muster Brook Yorkshire Water 135 68 1,699 1,392
718 River Brefi Dwr Cymru Welsh Water 156 72 1,698 1,553
719 Leckhampstead Brook Anglian Water 104 79 1,698 1,487
720 River Eamont United Utilities 147 56 1,698 532
721 Tidal Waters Of Western Cleddau Dwr Cymru Welsh Water 309 82 1,697 704
722 Brighstone Stream Southern Water 96 48 1,695 987
723 River Nodwydd Dwr Cymru Welsh Water 159 92 1,694 1,152
724 River Dyfi Dwr Cymru Welsh Water 156 100 1,693 1,374
725 Stell Yorkshire Water 155 -21 1,691 123
726 Langley Beck Northumbrian Water 196 117 1,691 1,442
727 River Dove Severn Trent Water 313 46 1,690 -214
728 North Sea Northumbrian Water 375 29 1,684 500
729 River Uck Southern Water 99 51 1,682 918
730 Eridge Stream Southern Water 155 60 1,679 826
731 Cheddar Yeo Wessex Water 130 77 1,676 1,241
732 County Brook United Utilities 145 145 1,676 1,676
733 Bull Brook Wessex Water 85 31 1,674 909
734 Avon Water Southern Water 99 85 1,669 1,564
735 River Hamble Southern Water 151 94 1,666 1,308
736 Ceiriog Dwr Cymru Welsh Water 144 124 1,664 1,626
737 River Gwaun Dwr Cymru Welsh Water 97 -15 1,664 330
738 Bury Brook Anglian Water 104 53 1,662 1,094
739 Colam Stream South West Water 80 48 1,658 1,125
740 Medbourne Brook River Welland Anglian Water 165 52 1,656 810
741 River Morda Severn Trent Water 146 88 1,655 1,366
742 Watery Lane Drain Anglian Water 86 70 1,651 1,470
743 Patten Beck United Utilities 149 25 1,644 -163
744 Hulcote Brook River Tove Anglian Water 80 41 1,633 1,542
745 Oxon Ray Thames Water 153 53 1,633 908
746 Bretton Brook Yorkshire Water 129 -7 1,633 869
747 Tributary of Loch Leven Scottish Water 107 -5 1,629 696
748 Sandal Beck United Utilities 126 -32 1,629 -991
749 River Ribble/West Clough Brook United Utilities 143 52 1,625 316
750 Blackawton Stream South West Water 115 44 1,620 861
751 River Linnet Anglian Water 138 106 1,617 1,368
752 Wootton Creek Southern Water 261 124 1,615 1,097
753 Tadnoll Brook Wessex Water 121 75 1,608 1,447
754 Ogmore Estuary Dwr Cymru Welsh Water 121 53 1,608 808
755 River Ding Wessex Water 103 34 1,607 656
756 Bedford Brook Glaze Brook United Utilities 120 44 1,603 593
757 Nant Logyn Dwr Cymru Welsh Water 85 44 1,603 1,349
758 River Brain Anglian Water 161 63 1,599 848
759 Crouds Lake Wessex Water 79 -10 1,597 158
760 Lyne Water Scottish Water 64 9 1,593 145
761 Blyth Estuary Northumbrian Water 238 75 1,592 920
762 Nevern Dwr Cymru Welsh Water 87 8 1,592 11
763 Abbey River South West Water 109 35 1,587 924
764 River Alham Wessex Water 179 84 1,584 952
765 River Elwy Dwr Cymru Welsh Water 104 49 1,584 1,032
766 Nant Rhydian-Ddu Dwr Cymru Welsh Water 112 35 1,583 624
767 Park Brook Wessex Water 77 36 1,581 867
768 Taunton United Utilities 158 54 1,581 395
769 Hemsworth Dyke Yorkshire Water 158 61 1,579 931
770 River Mamog River Cych Dwr Cymru Welsh Water 88 88 1,575 1,575
771 Collier Brook United Utilities 183 116 1,572 930
772 Lymore Stream Southern Water 115 90 1,569 1,404
773 Cwmllechen Dwr Cymru Welsh Water 126 20 1,569 367
774 Claydon Brook Anglian Water 89 37 1,567 1,448
775 Honeybridge Striver R.Adur Southern Water 107 43 1,565 725
776 Marston Brook Anglian Water 104 74 1,564 1,217
777 River Dove And Bulling Dyke Yorkshire Water 151 61 1,563 864
778 Tanyard Beck Yorkshire Water 149 144 1,556 1,505
779 Monks Ditch Dwr Cymru Welsh Water 140 38 1,554 627
780 Bletchingdon Brook Thames Water 120 72 1,554 1,061
781 Scad Beck United Utilities 109 30 1,553 1,007
782 Beck Anglian Water 115 60 1,551 1,404
783 River Hiraethlyn Dwr Cymru Welsh Water 94 41 1,550 599
784 Tide Brook Southern Water 97 38 1,549 865
785 River Lemon South West Water 140 -147 1,547 29
786 River Creedy South West Water 345 324 1,545 1,526
787 River Usk Estuary Dwr Cymru Welsh Water 364 82 1,544 724
788 Glenfield/Braunstone/K/Mux Br Severn Trent Water 107 60 1,543 1,416
789 Black Dene Burn Northumbrian Water 170 80 1,543 1,398
790 Parrett And Hinton Meads Brook Wessex Water 129 41 1,542 727
791 Gaddesby Brook Severn Trent Water 169 37 1,539 583
792 River Camnant Dwr Cymru Welsh Water 145 40 1,536 732
793 Crane Moor Dike Yorkshire Water 105 42 1,534 912
794 Cundall Beck Yorkshire Water 253 -8 1,531 -42
795 River Calder And River Spen Yorkshire Water 141 50 1,530 711
796 River Tas Anglian Water 111 69 1,526 1,065
797 Ayleston Brook South West Water 141 60 1,522 740
798 Tawelan Brook Dwr Cymru Welsh Water 302 99 1,519 592
799 River Tyne Estuarine Waters Northumbrian Water 354 108 1,518 867
800 River Crouch Anglian Water 247 -5 1,513 257
801 Levern Water Scottish Water 216 4 1,513 -50
802 Bulldog Sewer / Glynde Reach Southern Water 105 38 1,511 543
803 South Milton Stream South West Water 93 62 1,511 1,321
804 Pittington Beck Northumbrian Water 117 63 1,510 1,171
805 Grendon Brook Anglian Water 178 48 1,508 520
806 River Wid Anglian Water 181 96 1,507 653
807 River Rawthey United Utilities 90 22 1,505 1,153
808 Twizell Burn Northumbrian Water 110 74 1,505 1,412
809 Catraw Burn Northumbrian Water 80 45 1,505 966
810 New Mill Dike Yorkshire Water 122 -133 1,505 355
811 Lune Estuary United Utilities 134 -88 1,498 -3,051
812 Bishop Monkton Beck Yorkshire Water 112 70 1,498 1,159
813 River Petteril United Utilities 381 168 1,494 744
814 Seil Sound Scottish Water 370 -330 1,494 -978
815 Padbury Brook Anglian Water 92 38 1,494 805
816 River Cam Anglian Water 92 59 1,490 1,471
817 River Plym South West Water 280 68 1,488 731
818 River Tafarn Helyg Dwr Cymru Welsh Water 138 28 1,486 684
819 River Dwyryd Dwr Cymru Welsh Water 164 74 1,484 868
820 Thistleton Brook United Utilities 267 -33 1,483 239
821 River Lud Anglian Water 381 180 1,483 1,276
822 Est'L Waters Milford Haven Dwr Cymru Welsh Water 100 64 1,483 1,463
823 Wyke Beck Yorkshire Water 570 13 1,480 157
824 Carnon River South West Water 379 127 1,480 840
825 Hanborough Stream Thames Water 120 66 1,479 973
826 Leonards Cove Stream South West Water 94 31 1,479 465
827 Newmill Channel Southern Water 145 85 1,479 1,036
828 Ringmore Stream South West Water 86 75 1,478 1,474
829 Malham Beck Yorkshire Water 112 35 1,477 661
830 Marsh Drain United Utilities 125 43 1,474 945
831 River Elai Dwr Cymru Welsh Water 119 30 1,472 683
832 Cockington Stream To Sea South West Water 111 84 1,468 1,275
833 Car Dyke Meth'Gham Delph Rive Anglian Water 114 64 1,467 1,112
834 Derwent Northumbrian Water 302 114 1,463 922
835 River Little Went Yorkshire Water 170 50 1,462 887
836 River Hull Yorkshire Water 201 91 1,457 1,162
837 Clawdd Brook Dwr Cymru Welsh Water 86 25 1,454 633
838 River Tove River Gre Anglian Water 101 53 1,452 912
839 River Ogwr Fawr Dwr Cymru Welsh Water 117 59 1,451 430
840 Ferry Drain Severn Trent Water 105 77 1,447 1,264
841 Red Burn Scottish Water 162 77 1,445 922
842 Mobberley Brook United Utilities 196 16 1,445 580
843 Long Whatton Brook Severn Trent Water 131 118 1,445 1,227
844 Moray Firth Scottish Water 328 185 1,444 1,062
845 River Rhydyfallen-Uatroy Of Eastern Cleddau Dwr Cymru Welsh Water 96 -69 1,443 -832
846 Aldingbourne Rife Southern Water 77 75 1,442 1,416
847 Moor Drain Yorkshire Water 131 36 1,442 306
848 Cannington Brook Wessex Water 149 85 1,442 1,098
849 Rubaxton Water Dwr Cymru Welsh Water 172 86 1,441 857
850 Hey Brook United Utilities 299 162 1,439 405
851 Tees Northumbrian Water 305 141 1,438 1,203
852 Un R Brant Anglian Water 76 60 1,438 1,288
853 Crook Beck Northumbrian Water 205 60 1,436 944
854 River Rea Severn Trent Water 697 66 1,435 -742
855 Hallgarth Beck United Utilities 120 21 1,434 580
856 Bloxham Brook Thames Water 94 94 1,434 1,434
857 River Wnion Dwr Cymru Welsh Water 153 57 1,433 1,275
858 Somerset Frome Wessex Water 102 20 1,429 181
859 Shorwell Stream Southern Water 118 70 1,429 1,060
860 River Hertford Yorkshire Water 180 116 1,425 1,081
861 Whitehall Brook United Utilities 124 27 1,423 314
862 Melin Court Brook Dwr Cymru Welsh Water 104 31 1,422 469
863 Sedgemoor Old Rhyne Wessex Water 107 59 1,421 1,205
864 Long Preston Beck R Ribbl United Utilities 115 -17 1,421 -465
865 Black Cart Water Scottish Water 117 54 1,419 949
866 River Chwefru Dwr Cymru Welsh Water 134 25 1,418 598
867 River Kenn South West Water 78 -57 1,416 -1,045
868 River Spen Yorkshire Water 330 101 1,416 724
869 Old River Slea Anglian Water 98 61 1,414 1,236
870 Llansaint Stream Dwr Cymru Welsh Water 99 73 1,411 925
871 Grendon Brook River Nene Anglian Water 91 39 1,409 533
872 Somerhill Stream Southern Water 164 42 1,407 463
873 Waldron Ghyll Southern Water 86 42 1,405 841
874 River Lyner South West Water 195 -16 1,404 -525
875 Skegby Brook Severn Trent Water 211 101 1,404 1,025
876 Broad Rife Southern Water 84 37 1,397 628
877 Ludgershall Brook Thames Water 98 28 1,394 446
878 Bearley Brook Wessex Water 198 95 1,393 739
879 River Ystwyth Dwr Cymru Welsh Water 153 -44 1,392 -114
880 Harmonds Brook West Arm Thames Water 108 54 1,390 802
881 Cramfit Brook Severn Trent Water 141 23 1,389 701
882 River Tame Via Sws United Utilities 120 82 1,386 1,363
883 Bathford Brook Wessex Water 133 4 1,385 317
884 River Y Bantwen Dwr Cymru Welsh Water 64 -68 1,383 -1,316
885 Back Stream Wessex Water 119 101 1,380 1,330
886 River Sowe Severn Trent Water 95 70 1,379 1,149
887 Knock Brook Dwr Cymru Welsh Water 137 35 1,375 533
888 Dagnell Brook Severn Trent Water 73 52 1,375 1,242
889 River Dane Via Sws United Utilities 365 83 1,374 1,083
890 River Pelenna Dwr Cymru Welsh Water 194 35 1,373 659
891 River Parrett Wessex Water 295 101 1,372 825
892 Burstow Stream Thames Water 126 51 1,370 694
893 River Tillingham Southern Water 186 37 1,368 737
894 River Bourne Thames Water 85 15 1,362 149
895 Pippingford Brook Southern Water 126 43 1,359 267
896 River Sawdde Dwr Cymru Welsh Water 128 6 1,358 -161
897 Harcourt Brook Thames Water 91 84 1,357 1,329
898 Bardsey Beck Yorkshire Water 126 51 1,356 920
899 River South Tyne Northumbrian Water 299 182 1,355 1,177
900 Aylesbeare Brook South West Water 136 71 1,355 794
901 Northweald Brook Thames Water 94 94 1,349 1,349
902 Abbey Petty Sewer Southern Water 71 43 1,348 950
903 River Ottery South West Water 265 46 1,346 457
904 Paxtondean Burn Northumbrian Water 74 74 1,344 1,344
905 River Sheaf Yorkshire Water 415 96 1,341 301
906 Haye Valley Stream South West Water 154 43 1,339 551
907 Oak Beck Yorkshire Water 194 62 1,338 574
908 Tirle Brook Severn Trent Water 191 107 1,337 823
909 Trub Brook River Irwell United Utilities 123 34 1,336 446
910 River Endrick Scottish Water 339 -812 1,335 -3,718
911 Unnamed Braydon Wessex Water 78 39 1,334 843
912 Mill Drain Anglian Water 122 62 1,332 817
913 Old Bedford River Anglian Water 98 36 1,330 862
914 Tuckmill Brook Thames Water 81 67 1,329 1,211
915 Cockhaise Brook Southern Water 109 23 1,328 200
916 Stainley Beck Yorkshire Water 64 58 1,328 1,324
917 Fairham Brook Severn Trent Water 94 40 1,327 659
918 Little Hulton Stream United Utilities 222 88 1,327 762
919 Manifold Beck, Northumbrian Water 264 264 1,325 1,325
920 Seend Hill Stream Wessex Water 73 37 1,324 794
921 Tidal River Arun Southern Water 98 43 1,323 472
922 West Newton Beck United Utilities 111 17 1,322 297
923 Douglas Water Scottish Water 197 -48 1,321 66
924 Morlais Brook Dwr Cymru Welsh Water 308 23 1,316 293
925 Briff Lane Stream Thames Water 85 54 1,303 1,045
926 River Morlais Dwr Cymru Welsh Water 111 -80 1,298 -1,187
927 Shiel Burn Scottish Water 26 3 1,296 -422
928 River Pang Thames Water 83 83 1,295 1,295
929 Valley Burn Northumbrian Water 191 28 1,294 664
930 Bow Street Brook Dwr Cymru Welsh Water 79 43 1,293 862
931 Hartshay Brook Severn Trent Water 261 34 1,293 426
932 Main Goit Yorkshire Water 102 10 1,293 794
933 River Tamar Estuary South West Water 140 1 1,293 139
934 Stanney Brook Dwr Cymru Welsh Water 164 58 1,291 768
935 River Team Northumbrian Water 221 74 1,289 806
936 Leigham Mill Stream South West Water 100 -59 1,288 -749
937 Digmer Brook Severn Trent Water 65 13 1,287 400
938 River Teviot Scottish Water 154 112 1,287 220
939 Winterbournestream Thames Water 59 59 1,287 1,287
940 Swindale Beck United Utilities 191 -82 1,281 -1,208
941 River Worfe Severn Trent Water 151 67 1,280 589
942 Wye Estuary Dwr Cymru Welsh Water 149 59 1,278 754
943 Whitton Beck Northumbrian Water 142 63 1,278 954
944 Dalby Brook Severn Trent Water 101 41 1,272 632
945 Glast Mill Stream Wessex Water 94 46 1,267 756
946 Crich Brook Severn Trent Water 160 41 1,266 411
947 Earby Beck Yorkshire Water 228 54 1,265 696
948 Car Brook Yorkshire Water 394 35 1,262 26
949 River Drone Yorkshire Water 266 89 1,262 328
950 Langton Brook Anglian Water 209 156 1,261 1,059
951 Hurst Haven Southern Water 127 42 1,258 459
952 Gainsbridge Brook Thames Water 68 9 1,258 205
953 River Cedron Dwr Cymru Welsh Water 141 44 1,258 388
954 Crane Brook Southern Water 105 35 1,256 316
955 River Gwenfro Dwr Cymru Welsh Water 362 160 1,256 462
956 Near Stock Beck United Utilities 123 9 1,256 177
957 Feltham Brook Wessex Water 132 75 1,256 893
958 River Thet Anglian Water 99 91 1,255 1,238
959 Nant Myddlyn Dwr Cymru Welsh Water 166 30 1,254 608
960 Hyde Brook Severn Trent Water 104 54 1,254 606
961 Chatburn Brook United Utilities 105 35 1,253 620
962 Uffington Brook Thames Water 86 45 1,253 924
963 River Rye Yorkshire Water 143 42 1,252 1,058
964 Small Brook South West Water 76 37 1,250 944
965 Estuary East Of Sandy Haven Dwr Cymru Welsh Water 69 69 1,248 1,248
966 River Deerness Northumbrian Water 222 104 1,243 837
967 Totty Beck Yorkshire Water 136 49 1,243 1,122
968 Wadley Burn Northumbrian Water 118 118 1,241 1,241
969 River Medway Estuary Southern Water 374 160 1,239 933
970 Tywi Estuary Dwr Cymru Welsh Water 225 -39 1,239 627
971 Stanley Burn Northumbrian Water 405 113 1,237 655
972 Etwall Brook Severn Trent Water 75 37 1,236 902
973 Rhondda River Via A Culvert Dwr Cymru Welsh Water 146 113 1,235 1,217
974 Ormsby Beck Northumbrian Water 200 64 1,235 568
975 River Camel/St Lawrence Str South West Water 63 23 1,234 490
976 Solent/Langstone Harbour Southern Water 85 33 1,232 585
977 Hampshire Avon, River Wessex Water 106 80 1,231 949
978 Nether Beck, River Keer United Utilities 83 24 1,227 626
979 Stream South West Water 253 157 1,227 970
980 Browney Northumbrian Water 287 46 1,227 814
981 Ewenni Fach Dwr Cymru Welsh Water 124 54 1,227 724
982 Hunton Beck Yorkshire Water 107 45 1,226 965
983 Coastal Waters Off Llanina Pt Dwr Cymru Welsh Water 86 51 1,225 762
984 River Dafen Dwr Cymru Welsh Water 114 52 1,225 559
985 River Axe Estuary South West Water 111 50 1,221 707
986 River North Esk Scottish Water 9 2 1,221 623
987 River Loveny South West Water 66 43 1,220 835
988 Fleet Brook Thames Water 86 22 1,220 387
989 Seeley Brook Severn Trent Water 107 39 1,220 154
990 Ouse Burn Northumbrian Water 213 98 1,220 777
991 Whitelake Wessex Water 60 37 1,220 838
992 North Common Drain South West Water 83 59 1,220 1,090
993 Cold Hiendley Reservoir Yorkshire Water 79 79 1,219 1,219
994 Eller Beck Yorkshire Water 193 16 1,217 516
995 Wash Dike Yorkshire Water 158 32 1,213 417
996 Ebbw Estuary Dwr Cymru Welsh Water 146 84 1,212 666
997 Pincey Brook Thames Water 81 31 1,207 506
998 Drimpton Stream South West Water 167 64 1,206 559
999 River Meddanen Dwr Cymru Welsh Water 96 28 1,206 280
1000 Frampton Town Drain Anglian Water 69 48 1,204 1,044
1001 Norbury Brook United Utilities 88 22 1,203 331
1002 River Burn Yorkshire Water 143 40 1,203 913
1003 Dolmead Rhyne Wessex Water 63 63 1,203 1,203
1004 Oxon River Ray Thames Water 70 70 1,202 1,202
1005 Stanney Mill Brook United Utilities 122 82 1,201 1,124
1006 Semington Brook Wessex Water 170 63 1,200 598
1007 Coopers Brook Thames Water 73 -3 1,200 352
1008 Wreigh Burn Northumbrian Water 85 34 1,199 647
1009 Lowley Brook South West Water 76 53 1,196 998
1010 Ibstock Brook Severn Trent Water 123 31 1,195 201
1011 Thames Thames Water 159 91 1,194 679
1012 River Worth Yorkshire Water 400 106 1,193 450
1013 River Hamble Estuary Southern Water 67 28 1,192 612
1014 Kidsgrove Stream United Utilities 155 -75 1,189 -3,328
1015 River Kyle Yorkshire Water 301 84 1,186 749
1016 Woodbridge Brook Wessex Water 89 45 1,183 816
1017 Trelissey Stream Dwr Cymru Welsh Water 105 45 1,183 796
1018 Unnamed Tidal River Adur Southern Water 83 37 1,182 425
1019 Plymouth Sound/Plym Estuary South West Water 141 39 1,182 252
1020 River Cam Severn Trent Water 133 34 1,181 358
1021 Fleet Severn Trent Water 69 54 1,180 1,157
1022 Green Bank Drn,New S. Eau Rive Anglian Water 59 40 1,177 887
1023 Eaves Bk, Savick Bk United Utilities 79 79 1,176 1,176
1024 Wheatley Beck, River Ribble United Utilities 76 43 1,175 928
1025 Swan Sike Drain Yorkshire Water 87 36 1,175 812
1026 Crowton Brook United Utilities 165 63 1,175 884
1027 River Leven United Utilities 121 50 1,173 716
1028 Aldbrough Beck Northumbrian Water 72 56 1,173 1,079
1029 Castle Brook United Utilities 126 92 1,173 1,040
1030 Gore Water Scottish Water 28 4 1,172 187
1031 Sth Drain- Lwr Brue Wessex Water 66 32 1,171 659
1032 River Frenze River Waveney Anglian Water 84 50 1,167 934
1033 River Winster United Utilities 84 34 1,166 693
1034 East Looe River South West Water 158 81 1,166 581
1035 River Mawddach Dwr Cymru Welsh Water 121 56 1,165 804
1036 Benny Stream South West Water 77 77 1,164 1,164
1037 River Rhondda Fawr Dwr Cymru Welsh Water 127 24 1,163 525
1038 Laceby Beck Anglian Water 142 37 1,162 768
1039 River Hipper Yorkshire Water 347 143 1,162 734
1040 River Fender United Utilities 304 39 1,160 166
1041 Mells Stream Wessex Water 141 82 1,157 987
1042 Flood Relief Channel Anglian Water 70 35 1,156 677
1043 Steeley Burn Northumbrian Water 128 88 1,154 909
1044 River Esk Scottish Water 33 9 1,153 891
1045 River Earn Scottish Water 65 -39 1,151 -99
1046 Tarleton Runner United Utilities 152 -24 1,149 -1,092
1047 Grand Union Canal Stream Severn Trent Water 83 38 1,148 682
1048 River Bain Anglian Water 67 38 1,148 1,024
1049 Chichester Hbr Via Little Deep Southern Water 78 55 1,147 871
1050 Dyer'S Brake Wessex Water 137 74 1,146 840
1051 Hawkhurst South Stream Southern Water 124 57 1,146 501
1052 Conygre Brook Wessex Water 69 27 1,144 640
1053 Derry Brook Wessex Water 80 36 1,144 628
1054 Kniveton Brook Severn Trent Water 86 -41 1,141 -739
1055 Bourne Thames Water 67 47 1,141 862
1056 Exe Estuary South West Water 174 100 1,141 944
1057 Fleet Marston Brook Thames Water 75 20 1,140 376
1058 Usk River Dwr Cymru Welsh Water 87 31 1,137 865
1059 East Stream Southern Water 82 65 1,135 956
1060 Porter Or Little Don River Yorkshire Water 132 38 1,134 591
1061 Coundon Burn Northumbrian Water 85 5 1,131 703
1062 Watton Beck Yorkshire Water 83 45 1,131 685
1063 Bere Stream Wessex Water 53 49 1,130 1,090
1064 Williamthorpe Reservoir Yorkshire Water 98 13 1,128 188
1065 River Wey And Groundwater Thames Water 99 37 1,127 531
1066 Black Sewer River Adur Southern Water 64 29 1,126 601
1067 Bowburn Beck Northumbrian Water 175 62 1,126 798
1068 River Till River Witham Anglian Water 94 39 1,125 903
1069 River Ceunant Sych Dwr Cymru Welsh Water 149 48 1,125 571
1070 Lilly Brook South West Water 138 115 1,124 1,028
1071 Raddon Stream/Ground South West Water 102 -59 1,121 -1,375
1072 River Pilau Dwr Cymru Welsh Water 115 23 1,120 435
1073 Estuarial Waters Of River Dwyryd Dwr Cymru Welsh Water 109 18 1,119 462
1074 Campbeltown Loch Scottish Water 521 399 1,118 858
1075 East Brook Yorkshire Water 370 60 1,117 408
1076 Low Ham Rhyne Wessex Water 68 42 1,115 712
1077 Carr Brook United Utilities 203 10 1,115 215
1078 Mully Brook South West Water 209 168 1,113 435
1079 Foxton Brook River Welland Anglian Water 79 54 1,111 870
1080 River Adur East Southern Water 89 39 1,111 451
1081 Gwyrfai Dwr Cymru Welsh Water 179 112 1,111 993
1082 Turves Brook, Micker Brook United Utilities 81 54 1,109 1,076
1083 Cald Beck United Utilities 96 21 1,108 566
1084 River Maun Severn Trent Water 361 140 1,108 527
1085 Birk Syke United Utilities 181 21 1,108 538
1086 River Tove River Great Ouse N Anglian Water 66 35 1,108 755
1087 Abbotsley Brook Anglian Water 67 54 1,107 957
1088 Stowlangtoft Stream River Sapi Anglian Water 79 47 1,107 664
1089 Cone Brook Severn Trent Water 85 76 1,107 1,067
1090 Loch Carron Scottish Water 253 -91 1,107 84
1091 Brook Dike/River Dearne Yorkshire Water 75 62 1,106 955
1092 Gwendraeth Fach Dwr Cymru Welsh Water 133 68 1,106 830
1093 Coalford Beck Northumbrian Water 135 121 1,106 1,071
1094 River Yealm South West Water 158 101 1,105 560
1095 Grace Dieu Brook Severn Trent Water 142 26 1,105 -100
1096 Shuttern Brook South West Water 149 143 1,104 1,034
1097 River Roden Severn Trent Water 205 70 1,104 626
1098 Nolton Bay Dwr Cymru Welsh Water 73 47 1,102 895
1099 Willow Brook Anglian Water 115 37 1,101 710
1100 Goulds Brook Wessex Water 136 29 1,100 345
1101 Slade Brook Anglian Water 176 114 1,100 978
1102 Hilton Brook Severn Trent Water 91 45 1,097 858
1103 Shafton Beck Yorkshire Water 86 26 1,097 485
1104 Rhondda Fawr River Dwr Cymru Welsh Water 260 50 1,096 445
1105 Culverted Mackerel Lake Stream Dwr Cymru Welsh Water 98 80 1,095 1,069
1106 Langton Brook River Welland N Anglian Water 133 83 1,094 867
1107 Murk Esk Yorkshire Water 122 40 1,092 659
1108 River Wensum Anglian Water 398 164 1,089 796
1109 Witcham Catchwater River Ouse Anglian Water 71 54 1,088 1,003
1110 Press Brook Severn Trent Water 109 36 1,088 402
1111 Main Dyke United Utilities 453 220 1,087 718
1112 Elvington Beck Yorkshire Water 87 21 1,085 327
1113 Unnamed Glynde Reach/Ouse Southern Water 73 37 1,081 593
1114 Lam Brook Stream Wessex Water 83 35 1,081 561
1115 River Dulias Dwr Cymru Welsh Water 99 7 1,080 -164
1116 Corry Brook South West Water 76 72 1,076 1,014
1117 River Irk Via Sws United Utilities 74 23 1,073 234
1118 Crewkerne Stream Wessex Water 172 122 1,072 945
1119 How Burn Northumbrian Water 57 57 1,070 1,070
1120 River Okement South West Water 185 34 1,069 257
1121 River Plym Via Sws South West Water 570 79 1,066 463
1122 Kex Beck Yorkshire Water 78 31 1,066 611
1123 Gallos Brook Thames Water 63 37 1,065 723
1124 Docker Beck United Utilities 63 63 1,064 1,064
1125 Pow Beck United Utilities 196 -55 1,064 69
1126 Milford Haven Waterway Dwr Cymru Welsh Water 199 120 1,062 908
1127 Countesthorpe Brook Severn Trent Water 113 31 1,062 189
1128 Pembroke River Dwr Cymru Welsh Water 161 50 1,062 841
1129 Hindsford Brook United Utilities 117 101 1,061 1,014
1130 Springs Watercourse Wessex Water 60 34 1,060 665
1131 Thorpe Brook Severn Trent Water 102 66 1,060 893
1132 U River Towy Dwr Cymru Welsh Water 87 52 1,059 845
1133 Tidal River Great Ouse Anglian Water 171 25 1,059 873
1134 Crabley Creek Yorkshire Water 140 47 1,059 660
1135 Unnamed Watercourse South West Water 207 166 1,057 490
1136 Mill Ditch Southern Water 125 64 1,056 689
1137 Endon Brook Severn Trent Water 119 48 1,054 104
1138 Of Ince Brook Via Sws United Utilities 161 34 1,052 587
1139 Nant Iorwerth Goch Dwr Cymru Welsh Water 133 46 1,052 485
1140 Bushby Brook Severn Trent Water 102 49 1,050 582
1141 Charlton Stream Wessex Water 70 51 1,050 849
1142 Fenwick Burn Northumbrian Water 116 103 1,050 1,002
1143 Longnor Brook Severn Trent Water 84 26 1,049 452
1144 Nidon Brook Wessex Water 172 118 1,048 673
1145 Sleek Burn Northumbrian Water 169 33 1,047 464
1146 West Glen Anglian Water 77 63 1,044 932
1147 Pont Pill South West Water 110 51 1,044 925
1148 North Delph Anglian Water 72 52 1,043 839
1149 River Brennig Dwr Cymru Welsh Water 125 61 1,043 773
1150 River Waveney Anglian Water 215 83 1,042 469
1151 Fivehead River Wessex Water 217 80 1,040 492
1152 Langford Brook Wessex Water 60 50 1,039 918
1153 River Sapiston Anglian Water 131 87 1,037 763
1154 Rushyford Beck Northumbrian Water 194 47 1,035 605
1155 Kelwell Drain Yorkshire Water 133 40 1,033 637
1156 East Stour River Southern Water 74 43 1,030 784
1157 River Nant Cledlyn Dwr Cymru Welsh Water 101 64 1,028 731
1158 River Caldew United Utilities 234 34 1,026 686
1159 Chess Brook Southern Water 87 51 1,026 698
1160 River Trym Via Sws Wessex Water 668 197 1,025 583
1161 Unnamed Culvert Of Eamontriver United Utilities 124 11 1,024 357
1162 Hammer Stream Southern Water 87 39 1,024 573
1163 Nunningham Stream Southern Water 80 51 1,024 858
1164 Madresfield Brook Severn Trent Water 105 36 1,023 455
1165 Wash Brook Anglian Water 65 -15 1,023 -213
1166 Hessle Beck Yorkshire Water 62 23 1,022 464
1167 Looe River South West Water 246 28 1,021 203
1168 Hamstead Stream Thames Water 93 36 1,021 122
1169 Main Cut Yorkshire Water 86 31 1,020 706
1170 Par Brook Southern Water 89 30 1,020 366
1171 Longford Brook Severn Trent Water 168 33 1,019 724
1172 Nant Hedfron, River Taf Dwr Cymru Welsh Water 91 91 1,019 1,019
1173 Newbridge Brook Dwr Cymru Welsh Water 114 54 1,018 945
1174 Colne Water United Utilities 150 29 1,018 -285
1175 Worm Brook Dwr Cymru Welsh Water 64 42 1,016 808
1176 Shortbridge Stream Southern Water 73 19 1,015 273
1177 Corfe River Wessex Water 155 109 1,013 776
1178 River Glyme Thames Water 59 10 1,013 425
1179 River Almond Scottish Water 145 8 1,013 435
1180 Cowfold Stream River Adur Southern Water 72 26 1,009 510
1181 Brandon Brook Severn Trent Water 74 55 1,009 988
1182 River Idle Severn Trent Water 89 59 1,008 920
1183 Hibaldstow Catchwater River An Anglian Water 52 50 1,000 993
1184 River Wansbeck Northumbrian Water 187 50 999 551
1185 River Wydden Dwr Cymru Welsh Water 83 71 998 976
1186 Higher Ferry Drain Dwr Cymru Welsh Water 120 15 998 62
1187 Nant Coslech Dwr Cymru Welsh Water 109 42 996 693
1188 Great Langdale Beck United Utilities 41 12 996 690
1189 Skell Yorkshire Water 170 105 995 722
1190 Hooton Dike Severn Trent Water 77 9 994 583
1191 Earlswood Brook Thames Water 78 26 986 361
1192 River Nethan Scottish Water 119 -21 985 -201
1193 Valley Brook United Utilities 181 92 985 911
1194 Twenty Foot River Anglian Water 71 31 983 422
1195 Biddulph Brook United Utilities 264 31 981 -133
1196 Witcombe Bottom Drain Wessex Water 72 28 981 486
1197 Byde Mill Brook/River Avon Wessex Water 72 26 980 414
1198 Whiteacres Brook Severn Trent Water 112 17 977 339
1199 Estuarial Waters Of River Neath Dwr Cymru Welsh Water 250 39 977 80
1200 Culvert Of Bwrlais Brook Dwr Cymru Welsh Water 138 46 976 593
1201 Nightlayers Fen Int Drain Anglian Water 84 53 973 726
1202 Clackers Brook Wessex Water 83 35 973 639
1203 Coxhoe Beck Northumbrian Water 320 149 972 627
1204 Rhymney R - Source To Conf Nant Bargod Rhymni Dwr Cymru Welsh Water 139 58 970 813
1205 Shreen Water Wessex Water 201 113 969 608
1206 Greenspeck Burn Scottish Water 73 12 969 469
1207 Tary Of Rattlesden River Anglian Water 46 33 969 755
1208 River Lyne Northumbrian Water 102 25 968 607
1209 Gatwick Stream Thames Water 81 34 965 485
1210 Ford Lake Via Stream Southern Water 92 12 965 -118
1211 Conwy Estuary Dwr Cymru Welsh Water 78 42 965 817
1212 Bottesford Beck Severn Trent Water 406 109 964 404
1213 Narberth Brook Dwr Cymru Welsh Water 188 88 964 756
1214 Frogmore Creek South West Water 65 21 962 285
1215 Wallington River Southern Water 92 45 961 630
1216 Tidal River Solva Dwr Cymru Welsh Water 59 53 961 955
1217 River Stowe Severn Trent Water 152 43 960 0
1218 River Roding Thames Water 307 164 959 464
1219 River Eden Estuary United Utilities 99 -15 959 158
1220 Red Lane Dike Yorkshire Water 72 37 959 686
1221 River Beane Thames Water 73 73 959 959
1222 Manchester Ship Canal Via Sws United Utilities 322 54 958 256
1223 River Humber T Anglian Water 131 131 957 957
1224 River Lowman South West Water 120 38 956 351
1225 Bledington Brook Thames Water 65 40 956 633
1226 River Cocker United Utilities 206 28 955 407
1227 River Lim South West Water 98 33 954 252
1228 Howl Beck Yorkshire Water 105 -31 954 282
1229 Gormack Burn Scottish Water 56 0 953 496
1230 Adel Beck Yorkshire Water 258 97 953 479
1231 Sidings Drain Yorkshire Water 82 31 952 604
1232 Hebden Water Yorkshire Water 190 84 951 522
1233 Wallsend Burn Estuarine Waters Northumbrian Water 120 24 951 553
1234 Blane Water Scottish Water 60 -13 949 -56
1235 Fence Burn Northumbrian Water 131 34 947 447
1236 Muir Burn Scottish Water 130 68 947 -587
1237 South Tyne / Haltwhistle Burn Northumbrian Water 172 54 945 506
1238 Shap Beck United Utilities 50 16 943 355
1239 Broughton Astley Brook Severn Trent Water 117 25 943 552
1240 Drain To River Derwent Yorkshire Water 110 18 940 291
1241 River Llethi Dwr Cymru Welsh Water 107 67 940 750
1242 Dibbinsdale Brook United Utilities 115 60 938 739
1243 River Biam Severn Trent Water 109 59 938 842
1244 Pinsley Brook Dwr Cymru Welsh Water 143 40 938 540
1245 Wem Brook Severn Trent Water 129 85 937 686
1246 Hellifield United Utilities 165 17 935 315
1247 Wood Brook Severn Trent Water 146 53 931 618
1248 Crawlwy Brook River Ouzel Anglian Water 72 47 927 600
1249 Huddersfield Broad Can Yorkshire Water 149 47 926 617
1250 River Stor Southern Water 79 53 926 631
1251 Sheffield Beck Yorkshire Water 65 33 925 631
1252 Spittal Brook Yorkshire Water 90 77 924 902
1253 Cresswell Arm - Millwood Brook Severn Trent Water 102 67 924 778
1254 Round Wood Beck Yorkshire Water 118 37 922 497
1255 Bluehouse Gill Northumbrian Water 84 13 921 305
1256 Newton Harcourt Brook Severn Trent Water 80 33 921 545
1257 River Goyt Vis Sws United Utilities 138 40 920 440
1258 River Marron United Utilities 115 6 917 129
1259 Dulas Brook Dwr Cymru Welsh Water 81 16 915 330
1260 Speringbrook Sewer Southern Water 65 32 914 532
1261 Pasturefields Brook Severn Trent Water 95 45 913 610
1262 Deadman'S Lake Stream Dwr Cymru Welsh Water 56 37 913 902
1263 River Bowydd Dwr Cymru Welsh Water 137 41 912 410
1264 Sauchet Water Scottish Water 80 51 912 751
1265 Gwindra Stream South West Water 140 97 911 636
1266 Felbridge Water Southern Water 88 30 910 409
1267 Dipton Burn Northumbrian Water 121 121 909 909
1268 Audley Brook United Utilities 135 70 907 318
1269 Noleham Brook Severn Trent Water 105 21 906 553
1270 Dee Dwr Cymru Welsh Water 183 21 904 440
1271 River Gryfe Scottish Water 143 1 902 7
1272 Tresillian River Estuary South West Water 69 29 902 395
1273 Woodston Burn Scottish Water 47 11 901 401
1274 River Dee Estuary United Utilities 37 -38 900 -864
1275 Olveston Common Rhyne Wessex Water 56 52 899 835
1276 Stroom Dyke Severn Trent Water 104 2 897 129
1277 Pegwhistle Burn Northumbrian Water 63 50 896 766
1278 Little Don River Yorkshire Water 183 59 896 576
1279 River Chelt Severn Trent Water 81 8 895 586
1280 River Barlwyd Dwr Cymru Welsh Water 152 55 895 467
1281 Shire Brook Yorkshire Water 422 89 894 -63
1282 Pauper¿S Drain Severn Trent Water 106 104 894 885
1283 Berryfield Stream Wessex Water 84 31 889 476
1284 River Soar/Ashlands Brook Severn Trent Water 52 50 888 868
1285 Haven Drain Anglian Water 93 78 888 706
1286 Morland Beck United Utilities 120 -147 888 -606
1287 Leaton Brook Severn Trent Water 50 -22 886 -326
1288 Till Northumbrian Water 191 182 883 878
1289 Sketchley Brook Severn Trent Water 224 58 882 418
1290 Upper Clydach Dwr Cymru Welsh Water 131 26 880 305
1291 Culverted Section Of Gaywood R Anglian Water 256 158 877 781
1292 River Nidd Via Sws Yorkshire Water 78 24 877 559
1293 Cock Beck Yorkshire Water 121 16 877 367
1294 River Meden Severn Trent Water 238 65 876 139
1295 Westrop Brook Thames Water 60 30 874 540
1296 Pont Burn Northumbrian Water 161 67 872 589
1297 Herrington Burn/Moors Burn Northumbrian Water 71 71 871 871
1298 River Machno Dwr Cymru Welsh Water 85 14 870 18
1299 Gilwiskaw Brook Severn Trent Water 58 8 869 321
1300 Goodwick Brook Dwr Cymru Welsh Water 104 61 867 804
1301 Lady Burn Northumbrian Water 77 12 865 596
1302 Careys Brook Severn Trent Water 56 26 865 632
1303 River Lod Southern Water 70 34 864 504
1304 Carlton Brook Severn Trent Water 74 24 863 210
1305 River Nug Dwr Cymru Welsh Water 135 29 863 342
1306 Unnamed River Caen South West Water 222 14 862 324
1307 Cloidach Dwr Cymru Welsh Water 107 -1 861 402
1308 Dunholme Beck Anglian Water 61 21 860 482
1309 Chilton Brook River Stour Anglian Water 85 36 859 773
1310 Howey Brook Dwr Cymru Welsh Water 86 45 858 614
1311 Dover Beck Severn Trent Water 53 53 857 857
1312 Ham Brook Southern Water 55 28 857 522
1313 Braint Dwr Cymru Welsh Water 99 30 856 558
1314 Ford Brook Severn Trent Water 188 43 856 643
1315 Ramsley Brook Severn Trent Water 157 21 855 174
1316 Taf Fechan Dwr Cymru Welsh Water 114 -19 855 -1,157
1317 River Erme Estuary South West Water 158 158 854 854
1318 Nant Bargoed Dwr Cymru Welsh Water 83 22 853 353
1319 100 Foot River Anglian Water 74 44 852 634
1320 Hookstone Beck Yorkshire Water 97 36 852 504
1321 Bollinhurst Brook United Utilities 63 63 852 852
1322 Tickerage Stream Southern Water 81 34 851 257
1323 Nant Y Ci Dwr Cymru Welsh Water 115 18 850 342
1324 River Ddu Dwr Cymru Welsh Water 76 46 848 709
1325 Little Hallingbury Brook Thames Water 61 30 846 441
1326 Beechburn Beck Northumbrian Water 168 80 844 633
1327 River Ehen United Utilities 154 -1 842 112
1328 River Winniford Wessex Water 60 25 842 479
1329 Royal Military Canal Southern Water 55 33 840 640
1330 River Yare Anglian Water 154 107 840 487
1331 Tysoe Brook Severn Trent Water 93 20 839 412
1332 Langford Brook Thames Water 66 41 839 612
1333 Diggle Brook United Utilities 174 174 839 839
1334 Hagg Beck Northumbrian Water 170 170 837 837
1335 Westleigh Brook United Utilities 344 149 837 341
1336 Nant Hafren Dwr Cymru Welsh Water 41 8 836 269
1337 Littlestone Sewer Southern Water 43 14 835 315
1338 Little Petherick Creek South West Water 107 -6 834 459
1339 Skellingthorpe Main Drain Anglian Water 50 29 833 636
1340 Culverted Runwick Beck Yorkshire Water 76 51 832 617
1341 Norton Brook Wessex Water 66 24 832 381
1342 Mill Beck Yorkshire Water 137 11 831 710
1343 Aldreth Canal Anglian Water 46 35 831 798
1344 River Dyfrdwy Dwr Cymru Welsh Water 79 27 831 316
1345 Kent Water Southern Water 68 40 830 586
1346 River Kemp Severn Trent Water 123 52 829 548
1347 Culvert River Darwen United Utilities 206 206 828 828
1348 River Alun Dwr Cymru Welsh Water 115 43 828 396
1349 Dinckley Brook United Utilities 171 55 826 324
1350 Bow Brook Wessex Water 85 37 825 524
1351 Nidd And S Yorkshire Water 131 49 825 473
1352 Sandy Haven Pill Dwr Cymru Welsh Water 129 -11 825 292
1353 Sully Brook Dwr Cymru Welsh Water 96 59 824 572
1354 River Bantwen Dwr Cymru Welsh Water 86 30 824 547
1355 Nafferton Beck Yorkshire Water 103 2 821 475
1356 River Bure Anglian Water 99 56 820 637
1357 Dean Brook R Douglas United Utilities 121 47 819 542
1358 Ten Penny Brook River Colne N Anglian Water 98 89 819 809
1359 River Cole Severn Trent Water 285 58 817 184
1360 River Coly South West Water 152 145 816 766
1361 Foundry Drain Dwr Cymru Welsh Water 88 31 816 317
1362 River Sow Severn Trent Water 59 4 816 11
1363 Lower River Stour Wessex Water 70 53 812 732
1364 Rhondda Fach Dwr Cymru Welsh Water 223 -55 812 -350
1365 Unnamed Cow Lane Beck Yorkshire Water 71 31 812 513
1366 Tref Y Nant Brook Dwr Cymru Welsh Water 177 58 811 627
1367 Un-named watercourse discharging to Dornoch Firth Scottish Water 37 12 809 434
1368 Arch Brook South West Water 65 48 807 729
1369 Heal-Eye Stream South West Water 52 28 807 559
1370 Kislingbury Branch River Nene Anglian Water 48 11 806 470
1371 Pearl Brook United Utilities 144 85 804 466
1372 Himley Brook Severn Trent Water 66 5 801 -16
1373 West Glen River Anglian Water 90 64 801 504
1374 East House Burn Northumbrian Water 57 11 801 366
1375 Brunton Burn Northumbrian Water 70 28 799 697
1376 Holy Well Burn Northumbrian Water 82 23 798 468
1377 Herrington Burn Northumbrian Water 192 102 798 636
1378 Wriggle River Wessex Water 107 58 798 548
1379 Barton Brook Anglian Water 50 46 797 794
1380 Horfield Brook Wessex Water 236 82 797 321
1381 River Esk United Utilities 124 -135 797 -4,114
1382 River Spodden United Utilities 179 35 796 280
1383 Stisted Brook River Blackwater Anglian Water 49 32 795 586
1384 Sherford River Wessex Water 79 22 794 377
1385 River Frome Severn Trent Water 91 48 794 620
1386 Millbeck United Utilities 189 -41 793 181
1387 Cinderford Brook Severn Trent Water 93 24 793 390
1388 Uplowman Stream South West Water 48 29 792 552
1389 Beaulieu River Southern Water 60 22 791 345
1390 Hancock'S Water Wessex Water 91 63 790 560
1391 North Mills Brook Wessex Water 60 30 789 595
1392 River Ritec Dwr Cymru Welsh Water 85 57 789 597
1393 Skerne, A To Northumbrian Water 69 32 789 663
1394 Cripsey Brook Thames Water 87 40 789 411
1395 Boden Brook Severn Trent Water 48 44 788 740
1396 Sinderland Brook United Utilities 115 47 788 -51
1397 Bitham Brook/ Bitham Brook Wessex Water 75 30 787 183
1398 Bottom Hall Beck Yorkshire Water 114 55 784 623
1399 Washford River Wessex Water 116 41 784 405
1400 River Stour Anglian Water 151 73 783 522
1401 Biddulph Brook, Rvr Dane United Utilities 82 41 783 462
1402 Sea channel btwn Islay and Orsay Scottish Water 14 4 782 674
1403 River Dove Anglian Water 99 48 782 177
1404 Ransonmoor Drain Anglian Water 45 16 781 420
1405 Nant Helen Dwr Cymru Welsh Water 86 -75 779 -179
1406 River Ivel Anglian Water 99 -46 779 556
1407 Wey Thames Water 64 28 777 289
1408 Yockerton Brook Severn Trent Water 79 31 777 337
1409 Wagg Rhyne Wessex Water 45 31 775 561
1410 Far Stock Beck United Utilities 102 26 775 412
1411 Kislingbury Branch R Nene Anglian Water 51 43 773 744
1412 Ettrick Water Scottish Water 25 9 771 524
1413 Market Weighton Beck Yorkshire Water 92 68 771 650
1414 River Ray Thames Water 62 30 770 454
1415 Benfleet Creek Anglian Water 107 73 770 521
1416 Rutland Water Anglian Water 124 40 769 -46
1417 Hawkbridge Brook South West Water 74 -22 769 -179
1418 Longford Brook United Utilities 111 26 768 483
1419 Oak Beck And Coppice Beck Yorkshire Water 410 92 768 329
1420 Fowey Estuary South West Water 100 20 767 290
1421 Fenacre Water South West Water 68 46 767 583
1422 Driffield Canal Yorkshire Water 57 47 767 755
1423 Llangwm Pill Dwr Cymru Welsh Water 77 2 766 -566
1424 Billinghay Soke Dyke Anglian Water 74 32 764 484
1425 Western Yar Southern Water 115 58 763 557
1426 Whilton Branch River Nene Anglian Water 71 22 762 332
1427 Slutwell Stream Severn Trent Water 86 60 762 688
1428 Clifton Beck Yorkshire Water 158 123 762 725
1429 River Hart Thames Water 37 36 762 761
1430 Ridding Sough United Utilities 131 35 761 414
1431 Nant Pwntan Dwr Cymru Welsh Water 53 33 760 561
1432 Mundon Wash River Anglian Water 54 24 760 466
1433 Cfgin Dwr Cymru Welsh Water 87 33 760 364
1434 Taff Bargoed Dwr Cymru Welsh Water 99 16 759 173
1435 Fowlea Brook Severn Trent Water 185 23 758 96
1436 Pendleton Brook United Utilities 141 49 757 401
1437 River Lud/Louth Canal Anglian Water 145 72 757 465
1438 Thurnscoe Dike Yorkshire Water 130 45 757 420
1439 Ouse Dyke Severn Trent Water 363 174 756 570
1440 Bradford Beck Yorkshire Water 396 13 755 -1,289
1441 Ellington Brook Anglian Water 56 -18 751 -35
1442 Catchwater Drain Yorkshire Water 50 36 751 688
1443 Scothern Fen Drain Anglian Water 78 25 751 196
1444 Laneham Beck Severn Trent Water 68 57 750 713
1445 Of Black Dyke Anglian Water 47 36 749 679
1446 Hyndburn Brook United Utilities 229 40 748 -129
1447 River Drywi Dwr Cymru Welsh Water 58 58 748 748
1448 Showley Brook United Utilities 111 16 747 170
1449 Nevills Drain Yorkshire Water 104 16 747 188
1450 Flagshaw Brook Severn Trent Water 50 3 746 -57
1451 Loch Gilp Scottish Water 40 -22 746 -1,156
1452 Cuttle Brook Severn Trent Water 80 62 745 722
1453 Enbourn Thames Water 50 24 743 445
1454 Kingsbridge Estuary South West Water 198 121 743 615
1455 River Nairn Scottish Water 45 39 742 703
1456 River Humber Severn Trent Water 166 -7 740 -71
1457 Kemerton Brook Severn Trent Water 92 51 738 575
1458 Nant Mwrwg Dwr Cymru Welsh Water 101 32 738 465
1459 Polbathic Lake South West Water 84 2 738 27
1460 Burton Beck Yorkshire Water 59 20 737 318
1461 Dyffryn Main Drain Dwr Cymru Welsh Water 57 27 736 537
1462 Longhope Brook Severn Trent Water 65 28 736 503
1463 River Darwin United Utilities 120 27 735 246
1464 Binneford Water South West Water 97 97 734 734
1465 Burry Estuary Dwr Cymru Welsh Water 76 36 733 251
1466 River Clywedog Dwr Cymru Welsh Water 150 -63 731 -992
1467 River Gannel South West Water 281 84 731 387
1468 Stornoway Harbour Scottish Water 84 -1 730 -304
1469 Tidal River Lerryn South West Water 84 37 730 634
1470 Glossop Brook United Utilities 138 88 729 660
1471 Sheepwash Southern Water 66 33 728 431
1472 River Aeron Dwr Cymru Welsh Water 68 38 727 287
1473 Little Calder United Utilities 103 35 727 350
1474 Praze Stream South West Water 77 40 726 438
1475 Moor Ditch Thames Water 61 33 725 511
1476 River Dwyfawr Dwr Cymru Welsh Water 59 59 725 725
1477 River Ise River Nene Anglian Water 42 36 723 708
1478 Aldford Brook Dwr Cymru Welsh Water 99 22 721 358
1479 New Rhyne Wessex Water 46 43 720 716
1480 Bin Brook Anglian Water 46 29 719 550
1481 Borle Brook Severn Trent Water 131 11 719 -154
1482 Bull Greave Beck Yorkshire Water 198 57 718 319
1483 River Derril South West Water 88 57 717 400
1484 Carrwood Pk Brook Lady B United Utilities 120 64 717 608
1485 Bidston Stream United Utilities 152 -50 717 -1,419
1486 Hog Dyke Anglian Water 98 40 716 328
1487 West Looe River South West Water 365 335 713 300
1488 Summerham Brook Wessex Water 97 32 713 334
1489 Bothel Beck United Utilities 158 1 712 145
1490 Don Estuary Northumbrian Water 69 38 711 511
1491 Pudding Brook Wessex Water 100 50 711 334
1492 Thornton Brook/River Gowy United Utilities 91 17 710 338
1493 Lavenham Brook River Brett Anglian Water 45 36 709 652
1494 Louth Canal Anglian Water 94 41 709 403
1495 Sturton Beck River Till Anglian Water 63 43 709 640
1496 Truro River Estuary South West Water 56 31 709 442
1497 Close Brook R Douglas United Utilities 75 47 708 534
1498 Mill Stream Southern Water 55 31 708 556
1499 River Batherm South West Water 64 0 707 189
1500 Barton Beck Northumbrian Water 101 85 706 684
1501 Foss Ditch Wessex Water 43 43 705 705
1502 Carr Beck Yorkshire Water 277 27 705 302
1503 Tidal River Rother Southern Water 58 34 704 539
1504 Foss Dike Yorkshire Water 84 34 702 344
1505 Brinkworth Brook Wessex Water 68 40 702 496
1506 Greatham Beck Northumbrian Water 117 45 702 414
1507 Mallows Drain Hobhole Drain Anglian Water 54 19 701 216
1508 Weston Mill Stream South West Water 67 35 701 256
1509 Solway Firth United Utilities 53 10 700 235
1510 Estuarial Waters Of Holy Island Strait South Dwr Cymru Welsh Water 48 13 698 211
1511 Culverted Of Dee Dwr Cymru Welsh Water 35 34 698 698
1512 Grise Beck United Utilities 145 18 698 128
1513 Plummers Brook Severn Trent Water 40 32 698 604
1514 Farthingstone Brook River Nene Anglian Water 59 36 697 592
1515 Danford Brook Severn Trent Water 47 3 695 159
1516 Red Brook United Utilities 70 35 695 561
1517 Scotley Brook South West Water 145 132 695 598
1518 Nant Alltwalis Dwr Cymru Welsh Water 65 20 695 483
1519 Close Brook United Utilities 88 -41 694 -102
1520 River Tamar Via Sws South West Water 181 62 694 499
1521 River Hooke Wessex Water 76 33 691 480
1522 Little Beck Yorkshire Water 65 10 690 305
1523 Culverted Mill Beck Yorkshire Water 95 14 690 404
1524 Tees Estuary Northumbrian Water 277 53 689 209
1525 Mere Gutter United Utilities 76 45 689 437
1526 Leach Thames Water 45 42 688 674
1527 High Birks Beck Yorkshire Water 106 59 684 488
1528 Cut Thames Water 66 23 683 218
1529 Little Compton Stream Thames Water 57 21 683 447
1530 Nanceroy Stream South West Water 63 41 681 598
1531 Fen Drain River Great Ouse Anglian Water 85 79 681 658
1532 Repton Brook Severn Trent Water 65 2 681 229
1533 Cwm Ffrwd Dwr Cymru Welsh Water 103 25 681 191
1534 River Tyne Estuary Northumbrian Water 253 78 680 350
1535 Moss Brook United Utilities 95 -66 680 -757
1536 River South Esk Scottish Water 35 -8 680 -277
1537 Hey Cop Drain, River Alt United Utilities 79 16 677 402
1538 Braydon Brook Wessex Water 46 23 676 371
1539 Graves Park Beck Yorkshire Water 83 25 676 265
1540 Chisworth Brook United Utilities 124 68 675 398
1541 Simonswood Brook United Utilities 104 104 674 674
1542 River Caledffrwd Dwr Cymru Welsh Water 174 41 673 179
1543 Dogsmouth Brook Anglian Water 85 71 673 639
1544 Saltergill Beck, Tees Catchmet Northumbrian Water 55 55 672 672
1545 Salterwath Beck United Utilities 131 21 672 200
1546 Bagley Brook Severn Trent Water 72 51 671 638
1547 Kingswood Brook Severn Trent Water 93 32 670 367
1548 Newton Creek South West Water 78 53 669 606
1549 River Caen South West Water 80 42 669 437
1550 Nant Dowlais Dwr Cymru Welsh Water 130 49 669 420
1551 Savick Brook United Utilities 242 73 669 161
1552 Normanton Brook Severn Trent Water 146 91 668 504
1553 Dyke North Kelsey Anglian Water 62 62 667 667
1554 Kettleby Beck Anglian Water 62 23 667 375
1555 Chadlington Stream Thames Water 64 40 667 533
1556 Pennys Brook Anglian Water 42 32 666 610
1557 River Swarbourne Severn Trent Water 65 34 666 352
1558 Tennant Canal Dwr Cymru Welsh Water 160 34 666 263
1559 River Rase Anglian Water 96 67 665 603
1560 River Salwarpe Severn Trent Water 121 38 665 305
1561 Long Brook Via Sws South West Water 111 32 665 465
1562 Bagley Beck Yorkshire Water 212 116 665 459
1563 Kessingland Hundred River Anglian Water 38 35 664 642
1564 Walverden Water United Utilities 265 21 664 250
1565 Chester Burn Northumbrian Water 192 44 664 337
1566 River Irthing United Utilities 145 32 663 368
1567 Cod Beck Yorkshire Water 170 19 662 -231
1568 Langton Beck Northumbrian Water 124 68 660 524
1569 Holme Fen Drain Anglian Water 37 22 659 447
1570 Lustrum Beck, Northumbrian Water 67 -25 658 -282
1571 Lees Head Beck Yorkshire Water 133 31 656 302
1572 River Wyer Estuary United Utilities 116 32 655 297
1573 Hamsteels Beck Northumbrian Water 62 33 653 417
1574 Maltby Dyke Severn Trent Water 83 69 652 571
1575 Guc Thames Water 52 29 650 446
1576 Barnaby Pil Dwr Cymru Welsh Water 44 36 649 641
1577 Spring Brook Severn Trent Water 45 45 648 648
1578 Gutter Fawr Dwr Cymru Welsh Water 59 38 648 501
1579 Towy Dwr Cymru Welsh Water 148 84 648 483
1580 Nant Ganna Dwr Cymru Welsh Water 69 59 645 582
1581 River Limden Southern Water 41 28 644 622
1582 Mill Dike Yorkshire Water 98 -12 643 499
1583 River Whitting Yorkshire Water 104 29 642 266
1584 Farnley Beck Yorkshire Water 121 40 641 291
1585 Of Lodgegrove Brook Dwr Cymru Welsh Water 57 16 641 183
1586 Loach Brook United Utilities 72 33 641 423
1587 Caerfanell Dwr Cymru Welsh Water 76 25 641 328
1588 Brislington Brook Wessex Water 187 95 640 392
1589 Pocklington Beck Yorkshire Water 79 39 640 545
1590 Knoll Beck Yorkshire Water 165 56 638 345
1591 Winterton Holmes Dr Anglian Water 75 60 638 620
1592 Stone Brook Anglian Water 33 -8 638 6
1593 Bishopdale Beck Yorkshire Water 79 -157 636 -985
1594 Henover Brook Wessex Water 51 26 636 353
1595 Mobberley Brook Rv Bollin United Utilities 105 8 634 210
1596 Bentley Brook Severn Trent Water 128 1 634 201
1597 South Burn Northumbrian Water 58 14 632 317
1598 Wotton Brook Anglian Water 61 33 632 513
1599 Arley Brook United Utilities 72 -19 631 437
1600 Crooked Oak South West Water 82 44 630 -77
1601 River Hamps Severn Trent Water 44 28 629 443
1602 River Wiske Yorkshire Water 144 8 629 -84
1603 River Avon Scottish Water 24 6 629 -48
1604 Sledbrook Dyke Yorkshire Water 77 35 628 411
1605 Everden Brook River Nene Anglian Water 89 42 628 520
1606 Borrow Or Ray Creek Anglian Water 50 44 628 590
1607 River Quin Thames Water 44 24 627 481
1608 Blaen Bran Brook Dwr Cymru Welsh Water 88 47 626 421
1609 Trent And Mersey Canal Severn Trent Water 94 51 626 509
1610 Fingle Brook South West Water 184 108 624 365
1611 Dorchester Mill Stream Wessex Water 65 38 624 539
1612 Duddo Burn Northumbrian Water 40 31 624 574
1613 Tanner Beck Yorkshire Water 47 24 622 444
1614 Princethorpe Brook Severn Trent Water 52 -33 621 -542
1615 Galmpton Stream South West Water 40 26 620 590
1616 Controlled Waters Southern Water 64 26 620 243
1617 Middle Brook United Utilities 402 69 620 132
1618 Weighton Beck Yorkshire Water 103 40 620 467
1619 Bewl Water Southern Water 57 13 619 235
1620 Little Wilbraham River Anglian Water 53 46 619 595
1621 River Teifi Via An Un- Dwr Cymru Welsh Water 114 24 619 -265
1622 River Dare Dwr Cymru Welsh Water 114 114 618 618
1623 Cotton Mill Dyke, R Greet Severn Trent Water 110 71 616 443
1624 Fairbourne Stream Wessex Water 72 39 616 310
1625 Bannister Brook United Utilities 273 25 615 33
1626 River Fowey Estuary South West Water 410 -22 614 89
1627 Owland Wood Dyke Severn Trent Water 62 34 614 504
1628 Balmaleedy Burn Scottish Water 3 -1 613 -182
1629 Un To River Bran Dwr Cymru Welsh Water 178 51 613 311
1630 Ebbw Fach R - Source To Conf Ebbw R Dwr Cymru Welsh Water 82 25 612 526
1631 Alconbury Brook Anglian Water 61 27 612 229
1632 Wistaton Brook United Utilities 106 42 611 325
1633 Seamer Drain Yorkshire Water 46 40 610 579
1634 Swine Syke Anglian Water 68 29 609 489
1635 Seaton Burn Northumbrian Water 275 108 608 380
1636 River Len Southern Water 85 42 608 435
1637 Hooborough Brook Severn Trent Water 129 44 608 44
1638 Pulworthy Brook South West Water 37 37 606 606
1639 Irfon River Dwr Cymru Welsh Water 29 29 603 603
1640 Petherton Stream Wessex Water 80 42 602 463
1641 River Roe Dwr Cymru Welsh Water 138 30 602 291
1642 Venner'S Water Wessex Water 71 71 602 602
1643 Swansell Brook Dwr Cymru Welsh Water 47 33 601 452
1644 Humble Burn Northumbrian Water 57 57 599 599
1645 Crooks Beck United Utilities 81 13 596 396
1646 Ditch Yorkshire Water 155 60 596 439
1647 Plymouth Sound South West Water 190 64 595 286
1648 River Lune Estuarine Waters United Utilities 30 -196 595 -4,740
1649 Cranleigh Waters Thames Water 86 21 595 56
1650 River Prysor Dwr Cymru Welsh Water 187 78 593 325
1651 River Lynher Estuary South West Water 134 37 593 265
1652 Great Common Drain Yorkshire Water 70 48 592 542
1653 Milton Creek Southern Water 110 62 592 488
1654 Black Burn Northumbrian Water 254 80 591 342
1655 South Brook Wessex Water 68 23 591 247
1656 Hayton Beck Yorkshire Water 41 27 591 511
1657 Nant Bargoed Rhymney Dwr Cymru Welsh Water 56 52 591 568
1658 Byfield Brook Thames Water 51 27 590 301
1659 Weeton Beck Yorkshire Water 67 27 590 330
1660 Landrake Stream South West Water 48 13 590 170
1661 River Line Southern Water 75 36 589 313
1662 River Ecclesbourne Severn Trent Water 44 -68 588 -1,319
1663 Moorbrook Culvert -> River Ribble United Utilities 26 26 587 587
1664 Mainsforth Stell Northumbrian Water 102 32 585 367
1665 River Alne Severn Trent Water 103 10 583 433
1666 Liddel Water Scottish Water 54 -10 583 -8
1667 Leapmill Burn Northumbrian Water 139 54 583 386
1668 Rodge Brook Southern Water 54 27 582 328
1669 Haverigg Pool United Utilities 63 52 582 508
1670 River Rothay United Utilities 46 -11 582 -214
1671 River Key Thames Water 41 22 581 453
1672 Ham Brook Severn Trent Water 47 25 580 397
1673 River Hyndburn United Utilities 125 124 578 578
1674 Winford Brook Wessex Water 61 38 578 534
1675 Dabholm Gut Northumbrian Water 146 46 578 290
1676 An Nant Dyfrygi Dwr Cymru Welsh Water 40 24 575 480
1677 Shabbington Brook Thames Water 48 16 575 331
1678 Tidal River Yare Anglian Water 294 104 574 391
1679 River Bly Severn Trent Water 51 -40 571 114
1680 Lytchett Bay Wessex Water 76 29 570 341
1681 Holbeach River Anglian Water 41 20 570 502
1682 River Niidd Yorkshire Water 62 49 570 515
1683 Parsons Brook Southern Water 63 20 569 158
1684 Longnewton Beck- Northumbrian Water 57 29 567 376
1685 Mouse Water Scottish Water 129 -68 567 -182
1686 Wolds Dyke, R Waveney Anglian Water 36 28 566 530
1687 Canker Dyke Yorkshire Water 214 54 566 361
1688 River Glem Anglian Water 34 26 564 523
1689 Cranbrook Drain River Great Ou Anglian Water 45 31 563 387
1690 Nailsworth Stream Severn Trent Water 142 24 562 469
1691 North Sea Yorkshire Water 92 59 562 533
1692 Ouse River Anglian Water 46 39 561 520
1693 River Wylye Via A Reed Bed Wessex Water 170 -18 560 270
1694 Whatley Brook Wessex Water 84 47 559 436
1695 Henton Stream Thames Water 89 80 558 490
1696 River Cennen Dwr Cymru Welsh Water 105 62 555 399
1697 Sherburn Beck Northumbrian Water 57 28 554 409
1698 Nant Y Twlc Dwr Cymru Welsh Water 169 8 554 135
1699 Swavesey Drain Anglian Water 24 24 553 553
1700 Cockshot Beck United Utilities 116 12 553 328
1701 Holme Beck Yorkshire Water 141 70 553 125
1702 Aire Yorkshire Water 183 65 552 332
1703 Nant Arberth Dwr Cymru Welsh Water 38 24 552 462
1704 Applethwaite Gill United Utilities 72 -2 551 144
1705 Golbourne Brook Dwr Cymru Welsh Water 91 14 551 296
1706 Eye Brook River Wellan Anglian Water 40 31 549 524
1707 Heads Hope Burn Northumbrian Water 64 27 549 374
1708 Porter Brook Yorkshire Water 277 11 548 -353
1709 Shotton Beck, Northumbrian Water 51 5 547 110
1710 River Jordan Anglian Water 55 28 547 332
1711 Applehaigh Beck Yorkshire Water 117 34 546 354
1712 Stockerley Burn, Northumbrian Water 154 66 546 342
1713 Red River South West Water 149 107 546 408
1714 Cromford Canal Severn Trent Water 107 59 545 413
1715 Heckington Eau Anglian Water 54 39 545 452
1716 Llyfni Dwr Cymru Welsh Water 87 10 545 120
1717 S.Beck N.Beck South Forty Foot Anglian Water 49 21 544 386
1718 Mayland Creek River Blackwater Anglian Water 74 41 544 358
1719 Markeaton Brook Severn Trent Water 280 46 544 319
1720 Unnamed Stream River Gwash Anglian Water 38 -2 543 388
1721 Criddell Stream Southern Water 54 13 543 214
1722 River Claw South West Water 70 47 542 406
1723 Chantry Stream South West Water 62 0 542 -921
1724 Rainford Brook United Utilities 162 95 541 343
1725 Ellen Brook United Utilities 104 40 541 263
1726 Old River Tone Wessex Water 64 31 541 357
1727 Culverted Birdforth Beck Yorkshire Water 50 30 541 439
1728 Tanner Hole Brook United Utilities 100 30 540 241
1729 Riseley Brook River Kym Anglian Water 29 23 540 531
1730 Cragg Brook Yorkshire Water 66 22 540 335
1731 Farlieth Burn Northumbrian Water 49 31 539 403
1732 West Bradford Brook United Utilities 73 26 538 271
1733 Brampton Branch Of River Nene Anglian Water 29 23 538 531
1734 Silford Stream South West Water 50 19 538 133
1735 Kenwith Stream South West Water 329 181 538 224
1736 River Coquet Northumbrian Water 154 -59 535 -307
1737 Asby Beck United Utilities 91 -39 535 -19
1738 North Tyne Northumbrian Water 144 -17 535 200
1739 Longhirst Burn Northumbrian Water 34 34 535 535
1740 U Creswell River Dwr Cymru Welsh Water 50 35 534 475
1741 Clvrt Gransmoor Drain Yorkshire Water 75 29 534 382
1742 Letcombe Brook Thames Water 78 65 533 478
1743 Harley Dike Yorkshire Water 130 34 532 267
1744 Burton Pidsea Drain Yorkshire Water 54 46 532 473
1745 Unnamed Watercourse Dwr Cymru Welsh Water 240 6 532 -33
1746 Offwell Brook South West Water 77 21 531 123
1747 Haywards Water Wessex Water 124 51 531 88
1748 Webbs Lane Stream Thames Water 62 33 531 382
1749 R Lyne Northumbrian Water 65 4 530 -27
1750 Witton Brook United Utilities 48 46 529 528
1751 Hockley Brook Severn Trent Water 377 53 529 30
1752 River Ingrebourne Thames Water 45 17 529 169
1753 Nunburnholme Beck Yorkshire Water 37 32 528 476
1754 Timperley Brook United Utilities 247 84 527 81
1755 Slitten Brook United Utilities 164 89 527 355
1756 River Dysynni Dwr Cymru Welsh Water 93 48 527 408
1757 Faringdon Brook/River Thames Thames Water 116 57 527 438
1758 Pannel Sewer Southern Water 90 52 526 401
1759 Unity Brook United Utilities 80 6 526 245
1760 River Rivelin Yorkshire Water 143 77 526 341
1761 Badsey Brook Severn Trent Water 93 47 525 243
1762 Unnamed Houghwell Burn Northumbrian Water 64 33 525 435
1763 Surface Water Sewer And Culver To Cwm Bran Brook Dwr Cymru Welsh Water 106 50 523 284
1764 Bentley Brook Anglian Water 47 44 523 519
1765 River Dalch South West Water 178 99 522 274
1766 Hart Thames Water 46 16 522 216
1767 Priest Burn Northumbrian Water 93 57 522 420
1768 Low Northumbrian Water 81 16 522 348
1769 New Parks Beck Yorkshire Water 31 31 521 521
1770 Penwood Stream Thames Water 46 28 521 398
1771 Utray Belstead Brook Anglian Water 38 -23 520 197
1772 Stretham Catchwater Anglian Water 48 36 519 455
1773 Broadway Brook Severn Trent Water 38 26 518 381
1774 Somer Stream Wessex Water 132 58 518 347
1775 River Harbourne South West Water 105 47 518 323
1776 River Deer South West Water 117 53 518 413
1777 River Marlias Dwr Cymru Welsh Water 37 37 515 515
1778 Cong Burn Northumbrian Water 136 26 514 244
1779 Llynfi River Dwr Cymru Welsh Water 91 80 512 509
1780 Portsmouth Harbour Southern Water 186 16 512 125
1781 Netherton Brook South West Water 29 25 512 491
1782 Ketlam Drain River Nar Anglian Water 28 28 511 511
1783 Holme Beck United Utilities 90 90 511 511
1784 Cavenham Stream River Lark Anglian Water 32 12 511 304
1785 New Inn Stream Dwr Cymru Welsh Water 51 38 510 402
1786 Bryn Brook South West Water 51 19 510 240
1787 St Helens Dike Yorkshire Water 53 35 509 408
1788 Clifton Hampden Ditch Thames Water 32 32 509 509
1789 Swale Estuary Southern Water 47 24 509 335
1790 Smestow Brook Severn Trent Water 175 -63 509 -103
1791 Worminghallbrook Thames Water 52 35 509 377
1792 Hungerford Stream Southern Water 71 53 508 469
1793 Boldings Brook, River Arun Southern Water 48 22 507 215
1794 Wreningham Stream River Tas N Anglian Water 72 61 506 465
1795 Yelvertoft Brook Severn Trent Water 71 5 505 105
1796 Sandy Rhine Chestle Pill Wessex Water 41 -19 504 92
1797 Grimley Brook Severn Trent Water 59 19 504 294
1798 Trent And Mersey Canal United Utilities 128 92 502 444
1799 East Fen Catchwater Drain Anglian Water 46 30 501 449
1800 Doddiscombsleigh Stream South West Water 75 42 501 391
1801 Hurns Gutter Yorkshire Water 104 21 501 350
1802 Broughton Beck United Utilities 63 -3 500 -33
1803 Slack Brook United Utilities 116 -2 499 -120
1804 Bedford Brook United Utilities 134 53 499 439
1805 Billingham Beck Northumbrian Water 169 121 498 9
1806 River Spodden, River Roch United Utilities 61 21 498 274
1807 Chalybeate Spring Southern Water 34 2 498 72
1808 River Yeo/River Creedy South West Water 73 28 497 302
1809 River Mersey Via Sws United Utilities 221 60 497 188
1810 River Glaze Via Sws United Utilities 88 -21 497 -103
1811 Skytering Beck Northumbrian Water 58 33 495 377
1812 Saltwell Gill Northumbrian Water 102 102 495 495
1813 Garsiwn Ditch Dwr Cymru Welsh Water 92 76 495 488
1814 Jump Valley Stream Yorkshire Water 172 -10 493 82
1815 Lyme Brook Severn Trent Water 300 1 491 202
1816 Hatchet Stream Southern Water 35 21 490 318
1817 Stanton Brook Severn Trent Water 90 -142 490 -3,771
1818 Unnamed Canal To Tywi Estuary Dwr Cymru Welsh Water 77 31 488 415
1819 St. Catherines Brook Wessex Water 69 31 487 368
1820 River Tees-Saline Estuary Northumbrian Water 37 3 484 112
1821 Charleton Stream South West Water 70 37 484 352
1822 Laverton Brook Severn Trent Water 93 8 483 -445
1823 Ell Brook Severn Trent Water 42 16 483 288
1824 River Eden Via Sws United Utilities 90 51 482 369
1825 Nant-Y-Fendrod Dwr Cymru Welsh Water 92 18 482 126
1826 Celery Sewer River Ouse Southern Water 77 41 481 300
1827 Pandy Brook Dwr Cymru Welsh Water 125 11 481 53
1828 River Penk Severn Trent Water 109 38 481 90
1829 North Brook River Gwash Anglian Water 23 -2 480 19
1830 Cyt Bach Surface Watercourse Dwr Cymru Welsh Water 130 27 479 131
1831 Pasture Lane Dyke Severn Trent Water 60 26 479 326
1832 U Nant Llech Dwr Cymru Welsh Water 101 31 479 105
1833 Demons Beck Northumbrian Water 58 33 478 289
1834 Avon Wessex Water 43 10 476 370
1835 Wignall Brook Stour Estuary Anglian Water 40 32 476 461
1836 River Lowther United Utilities 70 -93 476 -743
1837 Ruddle Dyke Severn Trent Water 73 33 475 290
1838 Crosby Garrett Beck United Utilities 42 -154 475 -2,667
1839 Nant Y Wrach Dwr Cymru Welsh Water 81 0 475 29
1840 River Tiffey Anglian Water 54 33 474 318
1841 River Honddu Dwr Cymru Welsh Water 44 5 474 170
1842 Gibbs Brook Southern Water 42 23 473 352
1843 Nant Cwm-Clais Dwr Cymru Welsh Water 100 17 473 41
1844 Leven Estuary United Utilities 31 26 471 451
1845 Piddle Brook Severn Trent Water 53 27 471 412
1846 Fiddington Brook Wessex Water 47 34 471 390
1847 River Thame Thames Water 50 44 471 401
1848 River Wallington Southern Water 54 31 471 341
1849 Langley Beck, Northumbrian Water 49 38 471 468
1850 Inland Waters Dwr Cymru Welsh Water 67 14 470 159
1851 Lumphanan Burn Scottish Water 17 8 470 416
1852 Warmley Brook Via Sws Wessex Water 371 198 470 346
1853 Clydach River Dwr Cymru Welsh Water 63 -5 469 -189
1854 Croal Minor United Utilities 238 130 468 349
1855 South Tyne Northumbrian Water 112 27 467 282
1856 Thornham Watercourse River Dov Anglian Water 23 23 466 466
1857 Nadder Brook South West Water 62 15 466 130
1858 Tidal Waters Of River Arun Southern Water 90 15 466 183
1859 River Aber Glesyrch Dwr Cymru Welsh Water 39 14 466 211
1860 Marsham Sewer Southern Water 67 29 464 232
1861 Farnley Wood Beck Yorkshire Water 194 62 464 166
1862 Blackwater River/Stream South West Water 111 35 461 179
1863 Dean Brook Trid Of R Douglas United Utilities 109 19 461 143
1864 Tidal Estaury Of River Medway Southern Water 26 26 461 461
1865 Combe Stream South West Water 81 45 459 423
1866 River Dee Estuary Dwr Cymru Welsh Water 85 12 459 -56
1867 Strine Brook Severn Trent Water 50 18 459 318
1868 Black Brook Wessex Water 36 29 459 439
1869 Ogle Letch Northumbrian Water 28 28 459 459
1870 Hardenhuish Brook Wessex Water 82 27 458 152
1871 R Nene Anglian Water 45 45 458 458
1872 Carrant Brook Severn Trent Water 80 -1 457 -384
1873 Shibden Beck Yorkshire Water 74 4 455 200
1874 Gill Beck United Utilities 71 -6 454 -220
1875 Oakenshaw Beck Yorkshire Water 88 -7 454 -425
1876 River Parrett Estuary Wessex Water 54 38 452 325
1877 River Clarach Dwr Cymru Welsh Water 35 18 452 298
1878 Shibden Brook Yorkshire Water 164 44 452 235
1879 Horse Eye Sewer Southern Water 76 27 451 174
1880 Lyne Northumbrian Water 99 18 451 284
1881 Lopen Brook Wessex Water 64 29 450 250
1882 Pow Maughan Beck United Utilities 88 19 450 186
1883 Kyo Burn Northumbrian Water 193 73 449 279
1884 Botany Stream Southern Water 73 34 449 196
1885 Eden Vale Stream Southern Water 40 19 448 245
1886 Monksilver Stream Wessex Water 30 23 447 423
1887 Roding Thames Water 102 34 447 190
1888 Grunty Fen Catchwater Anglian Water 45 31 447 372
1889 Dean Bottom Dike Yorkshire Water 74 39 447 275
1890 Cowage Brook, Wessex Water 77 47 445 413
1891 River Ouzel Anglian Water 47 35 445 341
1892 Sudburn Beck Northumbrian Water 65 33 444 369
1893 Wold Grift Drain Anglian Water 72 51 444 325
1894 Ling Beck United Utilities 89 25 443 297
1895 River Ouse Anglian Water 63 14 442 114
1896 River Stiffkey Anglian Water 43 39 442 429
1897 Tregaseal Stream South West Water 111 111 441 441
1898 Lashlake Stream Thames Water 38 30 438 390
1899 Rains Brook Severn Trent Water 35 16 438 296
1900 Pill Creek South West Water 46 14 438 23
1901 River Blackwater Anglian Water 50 35 437 294
1902 River Venn South West Water 70 31 436 353
1903 Chalfield Brook Wessex Water 32 12 436 233
1904 Stogursey Brook Wessex Water 57 38 436 328
1905 River Ashburton South West Water 64 51 436 277
1906 Old Fleet Drain Louth Canal N Anglian Water 35 25 436 356
1907 Bugthorpe Beck Yorkshire Water 42 19 435 355
1908 River Deben Anglian Water 81 27 435 98
1909 Scaldwell Brook Anglian Water 42 37 435 396
1910 Gipton Beck Yorkshire Water 258 45 434 43
1911 Culverted Knavesmire Beck Yorkshire Water 47 7 434 342
1912 River Camel South West Water 73 -32 433 293
1913 Taff Dwr Cymru Welsh Water 93 41 433 330
1914 Coggins Mill Stream Southern Water 42 20 432 319
1915 Danby Beck Yorkshire Water 129 65 431 352
1916 Green Lane Brook Severn Trent Water 26 -81 430 -347
1917 Dean Dam United Utilities 43 -42 430 -916
1918 Fossdyke Canal Anglian Water 61 31 430 175
1919 Loadpit Beck Yorkshire Water 120 30 430 184
1920 Nant Y Geifr Dwr Cymru Welsh Water 81 45 430 350
1921 Smithy Brook Severn Trent Water 82 76 430 421
1922 Hartley Burn Northumbrian Water 87 35 429 267
1923 Tit Brook Anglian Water 36 14 429 276
1924 River Wheelock United Utilities 141 46 429 294
1925 Popping Beck United Utilities 64 16 429 219
1926 River Seven Yorkshire Water 63 -7 428 246
1927 Coop House Dene Burn Northumbrian Water 62 13 427 227
1928 River Iago Dwr Cymru Welsh Water 25 -5 427 192
1929 Mill Race United Utilities 78 54 427 401
1930 Framfield Stream Southern Water 57 8 426 -31
1931 Nant-Y-Derlwyn Dwr Cymru Welsh Water 78 0 426 20
1932 Horfield Brook Via Sws Wessex Water 151 50 426 196
1933 Wych Brook Dwr Cymru Welsh Water 79 33 426 205
1934 Ingleby Beck Northumbrian Water 45 12 425 93
1935 Middle Level Catch Drn Anglian Water 37 -34 425 -642
1936 Aire And Calder Navigation Yorkshire Water 141 112 425 399
1937 Winterton Marsh Stream Dwr Cymru Welsh Water 69 65 425 421
1938 Croft Bank Drain Anglian Water 30 24 424 387
1939 Shirtcliff Brook Yorkshire Water 135 33 424 142
1940 Prestatyn Gutter Dwr Cymru Welsh Water 90 49 423 332
1941 Ottringham Drain Yorkshire Water 77 19 422 285
1942 Blackwater Thames Water 60 13 422 174
1943 Ecton Brook Anglian Water 48 14 421 -174
1944 River Rhydhir Dwr Cymru Welsh Water 81 31 421 214
1945 Cullompton Mill Leat South West Water 42 5 421 -37
1946 Colville Hall Brook Thames Water 27 27 420 420
1947 River Exe Estuary South West Water 154 75 419 249
1948 River Pevensey Southern Water 72 37 419 193
1949 House Carr Dike Yorkshire Water 47 14 418 169
1950 Dwr Ial Dwr Cymru Welsh Water 84 34 417 259
1951 Unnamed River Burn Northumbrian Water 91 45 417 298
1952 . Anglian Water 124 25 417 62
1953 Laugherne Brook Severn Trent Water 71 37 416 142
1954 River Spey Scottish Water 39 -8 416 -212
1955 Cradlebridge Sewer Southern Water 50 27 415 268
1956 Medway Estuary Southern Water 107 44 415 357
1957 Nant-Bran Dwr Cymru Welsh Water 69 18 414 144
1958 Biggin Brook Severn Trent Water 68 35 413 232
1959 Ackhurst Brook R Douglas United Utilities 108 17 413 172
1960 Wheeler Dwr Cymru Welsh Water 126 101 413 303
1961 Stock Beck United Utilities 40 10 412 150
1962 A Stream On Nw Boundary Of The Site Dwr Cymru Welsh Water 91 37 412 217
1963 Hook Lake Southern Water 39 23 410 290
1964 River Greta Northumbrian Water 63 14 410 232
1965 Un River Calder United Utilities 131 6 409 53
1966 Osbaston Brook Severn Trent Water 71 29 409 262
1967 Ffrwd Wyllt Dwr Cymru Welsh Water 134 31 409 125
1968 River Gronw Dwr Cymru Welsh Water 112 62 409 308
1969 Warmsworth Beck Severn Trent Water 95 25 408 301
1970 Fleet Beck Yorkshire Water 34 1 408 105
1971 River Soar - Severn Trent Water 67 35 408 323
1972 Henllan Brook Dwr Cymru Welsh Water 134 31 408 217
1973 Houselop Beck, Northumbrian Water 87 -61 407 -97
1974 Rainton Burn Northumbrian Water 167 43 407 213
1975 Mare Fen Drain Anglian Water 47 31 407 295
1976 Tidal Great River Ouse Anglian Water 45 10 407 282
1977 Colliergate Beck United Utilities 30 14 406 198
1978 Soham Lode Anglian Water 33 18 406 355
1979 Clv Whit Brook United Utilities 133 133 405 405
1980 River Blackwater Thames Water 53 29 404 285
1981 River Isbourne Severn Trent Water 125 -189 404 -1,181
1982 Wettenhall Brook United Utilities 107 -55 404 -68
1983 Cwmbran Brook Via Surface Water Sewer Dwr Cymru Welsh Water 120 21 404 105
1984 Chivricks Brook Wessex Water 50 15 403 165
1985 Stonethwaite Beck United Utilities 46 2 403 242
1986 River Lark Anglian Water 64 32 402 314
1987 Littleton Brook Severn Trent Water 23 -24 401 -349
1988 Powsey Brook Dwr Cymru Welsh Water 114 36 400 274
1989 Tockington Mill Rhyne Wessex Water 42 38 400 384
1990 Caistor Canal River Ancholme Anglian Water 24 -7 400 31
1991 Dodscott Brook South West Water 76 76 400 400
1992 Plymouth Sound Via Sws South West Water 98 41 399 296
1993 White Roding Thames Water 93 93 398 398
1994 Coombe Brook Southern Water 43 18 398 159
1995 River Simene Wessex Water 54 19 397 187
1996 Barlow Brook Yorkshire Water 91 44 397 252
1997 Tidal River Orwell Anglian Water 97 36 396 141
1998 River Kenfig Dwr Cymru Welsh Water 40 16 396 246
1999 Lambrook Brook Wessex Water 78 31 395 315
2000 R Dove Anglian Water 41 34 394 349
2001 Dalton Burn Northumbrian Water 48 23 393 285
2002 Rivers Brook Wessex Water 30 30 393 393
2003 Of Little Dart River South West Water 78 65 393 249
2004 St John'S Lake South West Water 56 23 393 108
2005 River Briant Dwr Cymru Welsh Water 45 13 393 149
2006 Marton West Beck Northumbrian Water 43 22 392 301
2007 Sike Yorkshire Water 87 -32 390 129
2008 Sour Beck Yorkshire Water 48 22 390 247
2009 Mickle Ing Beck Yorkshire Water 144 10 390 61
2010 Scrase Stream Southern Water 70 20 390 91
2011 Clywedog Dwr Cymru Welsh Water 69 44 390 322
2012 North Beck Severn Trent Water 52 18 389 239
2013 Anstey Brook Severn Trent Water 55 20 389 226
2014 Kent Estuary United Utilities 59 0 389 252
2015 Polebrook Brook Anglian Water 39 30 389 329
2016 Coastal Wtrs Nr Stackpole Quay Dwr Cymru Welsh Water 35 3 388 165
2017 Halse Water Wessex Water 57 40 388 306
2018 Baston Creek South West Water 48 39 388 381
2019 Two S Of River Chidd Southern Water 66 8 387 42
2020 Seven Yorkshire Water 42 25 386 302
2021 Shonks Brook Thames Water 44 23 386 213
2022 Nant Henstaff Dwr Cymru Welsh Water 67 31 386 103
2023 River Glenderamackin United Utilities 86 7 385 95
2024 Bosherton Lake Dwr Cymru Welsh Water 33 1 385 162
2025 Pessall Brook Severn Trent Water 41 8 385 159
2026 Wear, Northumbrian Water 129 27 385 233
2027 Thurlaston Brook Severn Trent Water 97 47 384 331
2028 Caldwell Burn Northumbrian Water 30 20 384 276
2029 River Asker Wessex Water 70 28 384 221
2030 Taw Estuary South West Water 77 31 383 117
2031 Nant Y Gro Dwr Cymru Welsh Water 175 43 383 235
2032 Goit Via A Culvertedsystem Yorkshire Water 45 17 383 322
2033 Mayes Brook Thames Water 87 -3 383 -234
2034 Un-named tributary of River Gryfe Scottish Water 29 9 382 244
2035 River Soar Or S Severn Trent Water 53 -25 381 -166
2036 River Roddlesworth United Utilities 53 23 381 147
2037 River Irthing Via Sws United Utilities 83 83 380 380
2038 Nearby Ditch Yorkshire Water 80 30 380 284
2039 County Dyke Yorkshire Water 114 38 378 163
2040 Padbury Brook River Great Ouse Anglian Water 46 16 377 107
2041 Guldeford Sewer Southern Water 32 11 376 173
2042 River Ashburn Via Sws South West Water 67 20 376 244
2043 Torver Beck United Utilities 103 103 376 376
2044 Carrs Northumbrian Water 63 42 375 354
2045 Shepley Dike Yorkshire Water 74 15 375 146
2046 Henmore Brook Severn Trent Water 110 -24 374 -149
2047 Owler Beck Yorkshire Water 150 46 374 181
2048 Stoney Rock Beck Yorkshire Water 162 35 374 158
2049 Rhondda R - Source To Conf River Rhondda Fach Dwr Cymru Welsh Water 114 26 373 176
2050 Claypole Drain South Anglian Water 51 21 373 226
2051 Mill Stream Yorkshire Water 132 57 373 178
2052 Bond Croft Drain Anglian Water 54 1 372 -27
2053 Finham Brook Severn Trent Water 54 24 372 238
2054 Usk Estuary Dwr Cymru Welsh Water 99 27 371 194
2055 Newmarket No.1 Public Drain Anglian Water 71 38 371 236
2056 North Drain Yorkshire Water 24 17 371 365
2057 Clvrt Sec Of Sudden Brook United Utilities 96 11 371 103
2058 Millingford Brook United Utilities 196 81 370 227
2059 Fir Brook United Utilities 37 20 369 227
2060 River Ogden United Utilities 64 50 369 318
2061 Salcombe Estuary South West Water 26 23 367 365
2062 Ley Brook Severn Trent Water 32 -28 367 -39
2063 Black Brook River Yarrow United Utilities 62 32 367 303
2064 Lywood Stream Southern Water 36 -8 366 -368
2065 Don Yorkshire Water 133 50 365 263
2066 River Cerne Wessex Water 23 23 365 365
2067 Bromers Brook Wessex Water 33 13 365 286
2068 Springs Brook United Utilities 121 30 365 110
2069 Whittlesey Dyke Anglian Water 26 11 365 208
2070 Nant Gochen Dwr Cymru Welsh Water 25 16 364 344
2071 Unnamed Drain To Ebbw Fach Dwr Cymru Welsh Water 94 80 364 289
2072 Northlew Strm And South West Water 114 30 364 -362
2073 Mill Stream Wessex Water 87 16 364 180
2074 Marthall Brook United Utilities 65 36 363 252
2075 River Idle/Maun/Carr Dyke Severn Trent Water 43 27 363 306
2076 Roundmoor Ditch Thames Water 32 24 363 299
2077 River Box Anglian Water 36 30 362 329
2078 Morecambe Bay United Utilities 94 31 362 213
2079 Unnamed Syd Brook United Utilities 51 21 361 134
2080 Firth of Forth Scottish Water 158 87 360 77
2081 Yardley Brook Severn Trent Water 74 11 360 272
2082 Nant Hir Dwr Cymru Welsh Water 90 20 360 54
2083 Burton Stather Drain Severn Trent Water 110 51 360 185
2084 Dilham Canal Anglian Water 51 49 360 357
2085 Unknown River Ant Anglian Water 51 51 360 360
2086 Meathop Marsh Drain United Utilities 26 17 360 330
2087 Mill Shaw Beck Yorkshire Water 127 21 359 140
2088 Monk Haven Stream Dwr Cymru Welsh Water 19 -23 359 -117
2089 River Kenwyn South West Water 96 36 359 335
2090 Aberdare Canal Dwr Cymru Welsh Water 116 22 359 41
2091 Stoford Brook Wessex Water 48 20 359 183
2092 Lysdon Burn Northumbrian Water 45 25 358 279
2093 River Avill Wessex Water 157 51 358 261
2094 Barkham Brook Thames Water 52 38 358 280
2095 Tidal River Nene Anglian Water 47 41 357 335
2096 Denton Brook Via Sws United Utilities 195 41 357 133
2097 River Redlake Severn Trent Water 24 3 357 36
2098 Mill Brook United Utilities 137 -36 356 63
2099 Harpers Brook Anglian Water 42 21 355 114
2100 Howden Dike Drain Yorkshire Water 98 31 355 98
2101 Nant Y Aber Dwr Cymru Welsh Water 101 30 355 159
2102 Yalberton Stream Via Sws South West Water 38 21 354 297
2103 Culvert Leading To River Lwyd Dwr Cymru Welsh Water 88 8 354 53
2104 Langley Burn Northumbrian Water 53 28 354 255
2105 Fenay Beck Yorkshire Water 120 43 354 207
2106 Unnamed Herrings Stream Southern Water 71 6 353 -202
2107 Pillmawr Creek Dwr Cymru Welsh Water 166 56 353 56
2108 Odhay Hill Ditch/River Thames Thames Water 38 38 353 353
2109 River Tawd United Utilities 146 146 353 353
2110 Little Avon Wessex Water 67 45 352 270
2111 Un-Named Stream Into Llifon Dwr Cymru Welsh Water 79 -5 352 96
2112 Blackburn Brook Yorkshire Water 170 36 351 128
2113 Unnamed To West Looe Rivr South West Water 30 30 351 351
2114 Barden Mill Stream Southern Water 67 33 350 174
2115 Milford Haven Dwr Cymru Welsh Water 122 67 350 295
2116 Bagley Dyke Yorkshire Water 121 59 349 192
2117 Leiston Beck Anglian Water 335 147 349 208
2118 Culvert Culvert St United Utilities 23 -55 348 -513
2119 Cluny Burn Scottish Water 7 -20 347 -843
2120 Elsworth Brook Anglian Water 28 18 347 250
2121 Sprinkle Pill Dwr Cymru Welsh Water 81 38 347 230
2122 Hogwell Sewer Southern Water 31 20 347 234
2123 Stubbin Clough Yorkshire Water 63 13 346 120
2124 Trevedran Stream South West Water 40 -14 346 -178
2125 Teign Estuary South West Water 146 89 346 278
2126 River Carrog Dwr Cymru Welsh Water 94 13 346 95
2127 Worsley Brook United Utilities 71 71 346 346
2128 River Torridge Estuary South West Water 57 10 345 148
2129 Bumpstead Brook Anglian Water 33 5 345 183
2130 River Dwyfor Dwr Cymru Welsh Water 34 13 345 108
2131 Mel Brook Leading To R Rhee Anglian Water 52 31 345 98
2132 Nant Yr Aber Dwr Cymru Welsh Water 113 -24 344 -79
2133 Groundwater/River Dun Southern Water 36 3 344 128
2134 Luddenden Brook Yorkshire Water 44 44 343 343
2135 Local Stream South West Water 184 28 343 9
2136 Wash Estuary Anglian Water 55 21 343 171
2137 Brierdene Burn Northumbrian Water 74 39 343 280
2138 Of Heads Hope Burn Northumbrian Water 83 52 342 274
2139 Jackson Bridge Dike Yorkshire Water 102 82 342 298
2140 Virley Brook Salcottcreek Anglian Water 40 40 342 342
2141 Sound Of Mull Scottish Water 66 5 341 57
2142 Mother Drain Yorkshire Water 29 15 340 256
2143 Shadforth Beck Northumbrian Water 78 15 340 202
2144 Badnam Creek Southern Water 57 20 340 191
2145 Lavendon Brook River Great Ous Anglian Water 67 60 340 317
2146 Stonehouse Creek Via Sws South West Water 272 126 340 -165
2147 Higher Leat Via Sw Sewer South West Water 151 67 340 188
2148 Hemp Dike Yorkshire Water 63 19 339 180
2149 North Sea And River Esk Yorkshire Water 106 50 339 233
2150 Beck Yorkshire Water 50 21 339 86
2151 Horton Burn Northumbrian Water 61 25 338 186
2152 Beach Ditch Anglian Water 26 21 338 313
2153 Silkstone Beck Yorkshire Water 73 27 337 173
2154 River Need South West Water 31 30 337 328
2155 Upper Fox Drain Yorkshire Water 27 16 336 232
2156 Bickleton Stream South West Water 26 13 336 204
2157 Sandmead Rhyne Wessex Water 32 30 336 326
2158 River Teign Via S/W Sewer South West Water 46 27 336 227
2159 River Blyth Anglian Water 54 30 336 219
2160 River Tean Severn Trent Water 106 11 335 0
2161 Receiving Water Not Defined Severn Trent Water 101 19 335 97
2162 Nant Corrwg Dwr Cymru Welsh Water 54 12 334 114
2163 River Clettwr Dwr Cymru Welsh Water 63 11 334 166
2164 River Tiddy South West Water 35 -86 333 -109
2165 River Arrow Dwr Cymru Welsh Water 141 57 333 231
2166 Little Addington Brook Anglian Water 41 -5 332 -201
2167 Distington Beck United Utilities 88 4 332 48
2168 Rockcliffe Beck United Utilities 76 0 332 5
2169 River Loxley Yorkshire Water 188 66 332 160
2170 Unnamed Dyke Anglian Water 26 23 332 309
2171 Woodplumpton Brook United Utilities 53 53 331 331
2172 Syresham Stream Anglian Water 46 22 331 191
2173 River Ouse/Rawcliffe Ings Dr Yorkshire Water 33 12 331 132
2174 Riber Ellen United Utilities 109 9 331 122
2175 Dovenby Beck United Utilities 81 10 329 137
2176 Boathouse Sluice United Utilities 25 16 329 250
2177 Clvrt'D Section Swinnel Brook United Utilities 74 19 329 -30
2178 River Blakewater V Sws United Utilities 131 4 328 31
2179 Mans Brook Thames Water 41 21 328 179
2180 Medway Estaury Southern Water 82 5 327 81
2181 Sough Dyke Yorkshire Water 111 24 327 151
2182 Knelle Petty Sewer Southern Water 35 17 327 149
2183 Derwent Yorkshire Water 24 21 327 322
2184 Greasbrough Dyke Yorkshire Water 75 39 326 211
2185 Horsebridge Dyke United Utilities 56 48 326 319
2186 Balderton Brook Dwr Cymru Welsh Water 81 31 326 200
2187 Wrongway Brook United Utilities 31 31 325 325
2188 Leys Drain Yorkshire Water 34 14 325 191
2189 River Ramsey Anglian Water 44 25 325 235
2190 River Stort Thames Water 35 18 325 178
2191 Dauntsey Brook Wessex Water 42 30 325 301
2192 River Brake Dwr Cymru Welsh Water 128 48 325 -58
2193 Knightswick Dyke Anglian Water 32 16 324 195
2194 River Camddwr Dwr Cymru Welsh Water 18 5 324 230
2195 Uddens Water Wessex Water 83 39 324 250
2196 Farnham Park Thames Water 37 12 324 113
2197 Doverte Brook Wessex Water 31 24 322 285
2198 Upper Clydach River Dwr Cymru Welsh Water 155 62 322 93
2199 Sankey Canal United Utilities 76 12 322 103
2200 Cockwell Sough Severn Trent Water 59 26 321 29
2201 Surface Water Drain To Chyandr South West Water 112 24 321 117
2202 Stocksfield Burn Northumbrian Water 76 13 321 196
2203 Sutton Harbour Via Sws South West Water 63 5 321 119
2204 Porthtowan Stream South West Water 27 19 320 286
2205 Wooler Water Northumbrian Water 152 41 319 179
2206 Counter Drain Anglian Water 25 25 319 319
2207 Ringshaw Beck Yorkshire Water 86 7 319 101
2208 Bradley Brook Via Sws United Utilities 65 22 319 135
2209 Estuary Dwr Cymru Welsh Water 139 139 318 318
2210 Holme And Ainderby Beck Yorkshire Water 29 9 318 64
2211 Crook Beck, Northumbrian Water 55 11 317 181
2212 River Tern Severn Trent Water 128 -9 317 -301
2213 Unnamed Of River Browney Northumbrian Water 55 6 317 180
2214 Horton Beck West Brook Clvrtd Yorkshire Water 117 16 316 98
2215 River Tywelli Dwr Cymru Welsh Water 48 18 316 198
2216 Bourne - South Thames Water 45 -3 315 -78
2217 Loughor - Conf With Marlais To Conf With Aman Dwr Cymru Welsh Water 73 16 315 8
2218 Mere Burn Northumbrian Water 37 19 315 257
2219 Brunsow Beck United Utilities 51 2 315 59
2220 Norton Beck Yorkshire Water 60 16 314 156
2221 Dawdon Dene Beck Northumbrian Water 60 12 314 175
2222 Ings And Tetherings Drain Yorkshire Water 27 14 314 187
2223 Didgley Brook Severn Trent Water 51 17 314 170
2224 Sister Beck Yorkshire Water 42 42 314 314
2225 Lerwick Harbour Scottish Water 41 -16 314 -14
2226 Combe Haven River Southern Water 23 20 313 312
2227 Tetheringrass Drain Severn Trent Water 48 33 313 247
2228 Bilbrook Severn Trent Water 48 12 312 85
2229 River Madford South West Water 67 41 312 131
2230 Spittal Beck Yorkshire Water 41 19 312 283
2231 Stevington Brook Anglian Water 14 14 312 312
2232 Old River Tees Northumbrian Water 143 27 311 110
2233 Unnamed Drain To River Humber Anglian Water 14 14 311 311
2234 River Lymn Anglian Water 34 21 311 278
2235 Millbridge Brook Anglian Water 21 20 311 310
2236 River Lwyd - Source To Conf Dowlais Bk Dwr Cymru Welsh Water 63 -41 310 -437
2237 Dysynni Low Level Drainage Cha Dwr Cymru Welsh Water 83 48 309 199
2238 Latchington Brook Mundon Crk B Anglian Water 34 -3 309 -30
2239 Stannets Creek Brook Anglian Water 34 26 309 262
2240 S Holland Main Drain Anglian Water 25 25 308 308
2241 River Rother West Southern Water 53 4 308 16
2242 Hutton Beck Northumbrian Water 67 28 308 193
2243 Hosedon Burn Northumbrian Water 64 -5 308 -21
2244 Nant Carn Brook Dwr Cymru Welsh Water 71 11 307 167
2245 Black Brook Severn Trent Water 67 -10 307 -84
2246 Of River Dafen Dwr Cymru Welsh Water 16 14 306 306
2247 Black Brook, Brad Brook Dwr Cymru Welsh Water 47 24 306 221
2248 Grantham Canal Anglian Water 43 24 306 213
2249 River Lea United Utilities 60 29 306 157
2250 River Ash Thames Water 45 16 306 151
2251 Darley Beck Yorkshire Water 42 19 305 228
2252 Latchford Brook Thames Water 36 18 305 230
2253 Denton Brook Anglian Water 14 14 303 303
2254 Hey Clough Yorkshire Water 52 35 303 208
2255 River Loddon Thames Water 34 31 303 297
2256 River Wissey Anglian Water 75 36 303 228
2257 Polser Brook Severn Trent Water 59 28 302 204
2258 Gagle Brook Thames Water 37 22 302 256
2259 Iron Mill Stream South West Water 29 29 301 301
2260 Surface Water Sewer South West Water 80 30 301 35
2261 Birdwell Dike Yorkshire Water 49 27 300 230
2262 River Pont Northumbrian Water 50 18 300 216
2263 Culverted Bedlam Dyke Yorkshire Water 52 19 300 175
2264 Holgate Beck Yorkshire Water 139 -2 299 77
2265 Pitty Beck Yorkshire Water 99 26 299 78
2266 Tuxford Beck Severn Trent Water 40 1 299 -168
2267 Bumpstead Brook River Stour N Anglian Water 18 -20 299 82
2268 Fareham Lake Southern Water 77 36 299 134
2269 Cow Honeybourne Brook Severn Trent Water 35 8 297 -17
2270 Thames Tidal Thames Water 46 26 297 231
2271 Car Dyke Anglian Water 50 25 297 211
2272 Longwood Brook Yorkshire Water 122 -8 296 93
2273 Leigh Stream Wessex Water 38 23 296 218
2274 River Rib Thames Water 48 14 295 122
2275 Glynde Reach River Ouse Southern Water 23 16 295 245
2276 Many Brooks United Utilities 111 111 294 294
2277 Wignall Brook Anglian Water 14 14 294 294
2278 Scots Brook Severn Trent Water 72 35 294 260
2279 River Don Via Public Sewer Yorkshire Water 62 -24 294 129
2280 Limy Water R Irwell United Utilities 75 15 294 95
2281 Benefield Brook Anglian Water 74 -22 294 -39
2282 River Bain Yorkshire Water 65 -21 294 131
2283 Longford Brk Bent Lanes Brk United Utilities 76 47 292 219
2284 Thames Estuary Southern Water 83 37 292 239
2285 Blue Brook Thames Water 28 18 292 211
2286 Culverted Swale Yorkshire Water 24 -4 292 173
2287 Derrings Beck Yorkshire Water 79 18 292 202
2288 Queens Park Culvert Via Sws United Utilities 83 43 291 252
2289 Helmdon Brook River Tove Anglian Water 35 3 291 -142
2290 Harworth Sewage Dyke Severn Trent Water 46 5 291 93
2291 Brington Brook Anglian Water 60 20 291 132
2292 Mellor Brook United Utilities 102 26 290 135
2293 Thorpe Beck Northumbrian Water 62 33 290 178
2294 Culv'D Hoyle House Brk Yorkshire Water 68 -1 290 171
2295 Stoulton Brook Severn Trent Water 45 -39 290 141
2296 Sws To River Yarrow United Utilities 95 39 290 171
2297 Rearsby Brook Severn Trent Water 32 9 289 144
2298 Mill Hills Beck Yorkshire Water 30 21 289 178
2299 North Benfleet Brook Anglian Water 26 26 289 289
2300 Crane Brook Severn Trent Water 33 12 288 140
2301 Ebberston Beck Yorkshire Water 129 129 288 288
2302 Whistle Brook, River Ouzel Anglian Water 92 88 288 285
2303 Stanford Brook Thames Water 39 6 288 100
2304 Broad Ooze, Yealm Estuary South West Water 56 29 287 172
2305 Nant Gurrey Fach Dwr Cymru Welsh Water 64 23 287 -16
2306 Dale Brook Severn Trent Water 81 34 287 192
2307 River Team Saline Estuary Northumbrian Water 56 36 286 227
2308 North End Stream.River Ouse Southern Water 37 15 286 60
2309 Unknown Anglian Water 76 47 285 114
2310 River Bourne Southern Water 46 27 285 190
2311 Temple Brook South West Water 32 15 285 161
2312 Hatfield Waste Drain Yorkshire Water 45 13 284 8
2313 Chestle Pill River Wessex Water 23 19 284 267
2314 Marley Gap Brook Anglian Water 29 2 284 -135
2315 Haughley Water Anglian Water 56 25 284 109
2316 Weel Town Drain Yorkshire Water 28 27 283 278
2317 Nant Ddu Dwr Cymru Welsh Water 30 24 283 265
2318 Shadycombe Creek South West Water 138 30 283 82
2319 York Road Brook Severn Trent Water 60 51 283 270
2320 River Exe Via Sws South West Water 277 128 283 134
2321 River Gorlech Dwr Cymru Welsh Water 20 19 282 281
2322 Ogle Burn Northumbrian Water 23 23 282 282
2323 Speet Gill United Utilities 51 1 281 -8
2324 River Somer Wessex Water 23 23 281 281
2325 Lower Clydach River Dwr Cymru Welsh Water 85 11 280 34
2326 Bezza Brook United Utilities 18 -46 280 -1,141
2327 Dyers Brook Wessex Water 146 52 280 129
2328 Nant Heol-Y-Geifr Dwr Cymru Welsh Water 80 42 280 184
2329 Tidal Thames Thames Water 154 59 280 90
2330 Bourne Brook River Colne Anglian Water 27 4 279 -21
2331 Graveney Thames Water 177 70 279 111
2332 River Lodden Wessex Water 29 7 278 57
2333 Tider Gill Southern Water 40 9 278 159
2334 Bondicarr Burn Northumbrian Water 28 18 278 262
2335 Wrea Brook United Utilities 69 16 278 52
2336 River Chater Anglian Water 52 38 277 226
2337 Solway Firth Estuarine Wt United Utilities 69 32 277 123
2338 Lower Town Harbour, Fishguard Dwr Cymru Welsh Water 75 -1 277 31
2339 Longton Brook United Utilities 42 16 277 149
2340 Tidal River Colne Anglian Water 104 82 276 120
2341 River Ebbw Fach Dwr Cymru Welsh Water 62 -30 276 87
2342 Buckington Drove Wessex Water 54 54 276 276
2343 Bowling Beck Yorkshire Water 126 53 276 148
2344 Chatcull Brook Severn Trent Water 78 10 275 112
2345 Various Yorkshire Water 89 87 275 265
2346 Bradwell Creek Anglian Water 21 1 273 47
2347 Rye Harbour Southern Water 33 14 273 203
2348 Lee Moor Beck Yorkshire Water 42 19 273 91
2349 White Ash Brook United Utilities 81 21 273 117
2350 Shutford Stream Thames Water 38 28 272 137
2351 Fordyce Burn Scottish Water 25 5 271 71
2352 Midford Brook Wessex Water 106 60 271 224
2353 Blowell Drain Yorkshire Water 34 14 270 181
2354 East Stour Southern Water 61 28 270 158
2355 Barsey Clough Yorkshire Water 32 14 270 71
2356 River Till Northumbrian Water 63 30 270 75
2357 Hole Brook South West Water 29 22 268 224
2358 Steeton Beck Yorkshire Water 90 37 268 185
2359 Chilcote Brook Severn Trent Water 101 62 268 81
2360 Chinn Brook Severn Trent Water 213 94 268 151
2361 Keswick Beck Yorkshire Water 73 41 267 105
2362 Varies With Outlet Yorkshire Water 135 7 267 -2
2363 Culverted Brayton Junction Yorkshire Water 49 -84 267 -185
2364 Whitson Brook Severn Trent Water 58 33 267 200
2365 River Tud Anglian Water 36 28 267 257
2366 Foston Beck Anglian Water 34 -7 266 -70
2367 Wear Estuary Northumbrian Water 107 5 265 -250
2368 Semmington Brook Wessex Water 21 7 265 119
2369 Newton Longville Brook Anglian Water 79 33 265 104
2370 River Can Anglian Water 14 14 265 265
2371 River Wolf South West Water 36 14 265 125
2372 Coldbrook Dwr Cymru Welsh Water 66 43 263 246
2373 Northfield Drain Yorkshire Water 30 25 263 260
2374 River Kennet Thames Water 21 12 263 206
2375 Gilling Beck Yorkshire Water 42 -20 262 36
2376 River Frenze Anglian Water 16 1 262 -48
2377 River Vyrnwy Severn Trent Water 24 14 262 82
2378 River Trym Wessex Water 139 53 262 159
2379 Nant Y Milwr Via Surface Water Sewer And An Unnamed Watercourse Dwr Cymru Welsh Water 61 18 262 122
2380 Firth Park Stream Yorkshire Water 131 43 261 145
2381 Pentrebach Brook Dwr Cymru Welsh Water 88 19 261 71
2382 Barkby Brook Severn Trent Water 72 10 261 153
2383 Wroxall Stream Southern Water 48 6 260 123
2384 River Croco United Utilities 107 18 260 106
2385 Eaves Brook United Utilities 85 83 258 258
2386 Skittergate Gutter Yorkshire Water 57 32 258 148
2387 Beggars Reach Daugleddau Dwr Cymru Welsh Water 26 17 257 139
2388 St Austell River South West Water 24 21 257 241
2389 Watton Brook Anglian Water 20 -7 257 30
2390 River Tweed Estuary Northumbrian Water 108 45 256 125
2391 Calow Brook Yorkshire Water 77 24 256 105
2392 Castle Pill Dwr Cymru Welsh Water 147 107 256 239
2393 Halewood Brook United Utilities 69 18 256 141
2394 Byres Burn Scottish Water 69 -1 256 70
2395 Llanfairfechan Dwr Cymru Welsh Water 116 8 256 50
2396 River Neath Via Surface Water Sewer Dwr Cymru Welsh Water 92 41 255 176
2397 Acklam Beck Yorkshire Water 28 6 255 168
2398 Bagley Dike Yorkshire Water 115 20 255 -2
2399 Hoyle House Brook Yorkshire Water 40 -4 254 136
2400 Dry Brook Severn Trent Water 15 15 254 254
2401 Sws To Aller Brook South West Water 34 19 254 175
2402 Wells Moat Stream Wessex Water 35 26 253 212
2403 Paxton Brook Anglian Water 17 -9 252 -56
2404 Pinch Beck Yorkshire Water 93 40 252 149
2405 Greenfield Valley Dwr Cymru Welsh Water 121 96 252 212
2406 Oakerthorpe Brook Severn Trent Water 87 23 252 129
2407 Burton Brook Wessex Water 37 15 252 212
2408 Wade Brook United Utilities 100 -5 251 -308
2409 River Steeping Anglian Water 30 22 250 214
2410 Tregoyd Brook Dwr Cymru Welsh Water 43 2 250 153
2411 Sow Brook Severn Trent Water 51 39 250 214
2412 Tidal River Bure Anglian Water 201 112 250 186
2413 Kenyon Brook United Utilities 18 18 250 250
2414 Nant Y Flint Dwr Cymru Welsh Water 25 10 249 144
2415 Moors Burn Northumbrian Water 135 55 249 119
2416 Potwell Dyke Severn Trent Water 94 33 249 181
2417 Corston Brook Wessex Water 65 26 248 173
2418 Key Brook To R Stour Wessex Water 69 24 248 36
2419 Aberystwyth Harbour Dwr Cymru Welsh Water 74 33 248 215
2420 To River Roding Thames Water 71 4 248 13
2421 Welldale Beck Yorkshire Water 27 23 248 240
2422 Barton Brook Wessex Water 27 -21 247 -389
2423 Horwood Brk/Claydon Brk River Anglian Water 36 28 247 225
2424 Un Tingewick Br Anglian Water 36 13 247 88
2425 Unknown Langton Brook Anglian Water 14 14 247 247
2426 River Brue Mill Stream Wessex Water 46 28 246 189
2427 Barn Brook United Utilities 113 88 246 212
2428 Weir Brook Severn Trent Water 84 21 245 46
2429 River Chor United Utilities 138 126 245 237
2430 Manor Drain Dwr Cymru Welsh Water 38 29 245 210
2431 Of Kings Moor Main Drain Wessex Water 23 18 245 182
2432 Gotter Water Scottish Water 45 18 245 -296
2433 Starston Beck Anglian Water 23 19 245 229
2434 Scotch Brook Severn Trent Water 153 91 245 169
2435 Loughor Dwr Cymru Welsh Water 69 19 245 59
2436 Tetchill Brook Severn Trent Water 65 31 244 165
2437 Merstham Stream Thames Water 23 -5 244 -182
2438 Lakehouse Dingle Brook Severn Trent Water 33 10 243 66
2439 White Bridge Drain River Great Anglian Water 24 13 242 154
2440 Coastal Waters - River Daron Dwr Cymru Welsh Water 37 14 242 202
2441 Stainsacre Beck Yorkshire Water 58 14 242 152
2442 Shelf Brook Via Sws United Utilities 46 -40 241 -76
2443 Singret Brook Dwr Cymru Welsh Water 88 19 241 110
2444 Boughton Dyke Severn Trent Water 42 19 241 99
2445 Dene Burn Northumbrian Water 128 20 241 141
2446 Tranmire Goit Yorkshire Water 75 29 241 149
2447 Buckenham Stream Anglian Water 24 19 240 232
2448 West Beck Yorkshire Water 59 14 240 156
2449 Bailey Brook Severn Trent Water 144 -57 239 -3
2450 Tidal River Exe South West Water 29 16 239 222
2451 River Don Scottish Water 64 24 239 94
2452 Sheffield Lane Dike Yorkshire Water 105 -2 239 16
2453 Lees Hd Beck Colne/Calder Yorkshire Water 42 21 239 137
2454 Bishopton Beck Northumbrian Water 119 77 239 182
2455 River Tamar Viasws South West Water 20 -2 239 7
2456 Unnamed Leading To River Cynon Dwr Cymru Welsh Water 66 5 239 -35
2457 Rhoden Stream Southern Water 38 38 238 238
2458 Embsay Beck Yorkshire Water 66 33 237 213
2459 Newton Regis Brook Severn Trent Water 64 39 236 199
2460 Merriott Stream Wessex Water 40 11 236 172
2461 Kennet And Avon Canal Thames Water 20 20 236 236
2462 Boathouse Creek Anglian Water 16 15 236 232
2463 Waterfall Beck Northumbrian Water 49 49 235 235
2464 Skinningrove Beck Northumbrian Water 52 11 235 155
2465 Cut-Off Channel Anglian Water 15 11 235 228
2466 English Channel Wessex Water 45 17 234 42
2467 South Delph Anglian Water 12 7 234 223
2468 Stanton River Sapist Anglian Water 30 19 233 192
2469 Swanspool Brook Anglian Water 64 35 233 192
2470 Stanley Burn, Northumbrian Water 50 7 233 104
2471 Intwood Stream River Yare Anglian Water 17 -11 232 -178
2472 Chapman Beck Northumbrian Water 64 52 232 207
2473 Teifi Dwr Cymru Welsh Water 49 -118 232 -206
2474 Meers Brook Yorkshire Water 109 71 232 161
2475 Silverstone Brook Anglian Water 42 11 232 87
2476 River Bollin Via Sws United Utilities 75 40 231 121
2477 Trevaunance Stream South West Water 50 18 231 152
2478 Esturial Waters At Rath Dwr Cymru Welsh Water 111 32 231 119
2479 Deepdale Beck Northumbrian Water 37 21 230 149
2480 Stonley Goat Dyke Yorkshire Water 26 17 230 150
2481 Rhyd Dwr Cymru Welsh Water 108 -4 230 52
2482 Sandon Brook Anglian Water 35 22 230 149
2483 Cockermere Burn Northumbrian Water 60 12 229 125
2484 Swinden Clough United Utilities 43 19 229 154
2485 Blackwater Est Anglian Water 34 21 229 170
2486 Raywick Ditch Anglian Water 44 -15 229 -72
2487 River Yeolm South West Water 32 27 229 213
2488 Elphin Beck Yorkshire Water 76 15 229 99
2489 Tweed Estuary Northumbrian Water 121 4 228 84
2490 River Evenlode Thames Water 33 30 228 189
2491 Ffynnon Y Ddol Channel Dwr Cymru Welsh Water 35 -20 228 70
2492 Chaddesden Brook Severn Trent Water 118 20 228 97
2493 Wandle Thames Water 64 33 228 44
2494 Grunty Fen Drain Anglian Water 31 21 228 202
2495 Billinghan Beck Northumbrian Water 63 20 227 118
2496 Gledhow Beck Yorkshire Water 144 43 227 131
2497 Saltburn Gill Northumbrian Water 25 6 227 156
2498 Grand Union Canal Thames Water 33 21 227 163
2499 Dane-In-Shaw Brook United Utilities 85 82 226 222
2500 River Dee United Utilities 90 -50 226 -109
2501 Foulton Hall Ditch Anglian Water 42 32 226 206
2502 Holme Beck Northumbrian Water 77 15 226 137
2503 Hundred Foot Anglian Water 29 15 226 172
2504 Low Spen Burn Northumbrian Water 54 15 226 136
2505 Barnwell Brook Anglian Water 15 8 226 210
2506 Ashfield Beck Yorkshire Water 94 36 225 155
2507 River Cefni Dwr Cymru Welsh Water 114 72 225 160
2508 Westfield Pill Dwr Cymru Welsh Water 79 43 224 141
2509 Ewan Mill Beck United Utilities 27 19 224 222
2510 Shakerley Brook United Utilities 92 35 223 156
2511 River Moss Yorkshire Water 121 27 223 79
2512 Park Gate Dike Yorkshire Water 35 13 223 138
2513 East Glen River Anglian Water 50 39 223 204
2514 Tidal River Crouch Anglian Water 22 17 223 188
2515 Wyrley Brook Severn Trent Water 88 -60 222 20
2516 R Humber Anglian Water 30 -24 222 -165
2517 Chapel Brook United Utilities 83 12 222 88
2518 Longnewton Beck Northumbrian Water 63 16 222 99
2519 Unknown Of River Towy Dwr Cymru Welsh Water 80 2 222 36
2520 Dwyryd Dwr Cymru Welsh Water 21 -7 221 -6
2521 River Greet Severn Trent Water 82 32 221 158
2522 River Thames Tidal Thames Water 28 8 221 56
2523 Llyn Maelog Dwr Cymru Welsh Water 38 29 221 186
2524 Cottages Beck Yorkshire Water 28 16 220 150
2525 Pillmawr Creek, River Usk Dwr Cymru Welsh Water 49 20 220 99
2526 Willow Beck Yorkshire Water 98 22 220 46
2527 Clvrt Kilnhurst Cut Yorkshire Water 62 10 219 52
2528 Levisham Beck Yorkshire Water 92 17 219 74
2529 Newton Beck Yorkshire Water 27 17 219 136
2530 Short Brook Yorkshire Water 48 18 219 163
2531 A Stormwater Ditch Wessex Water 58 15 219 107
2532 Dark Water Southern Water 38 22 219 141
2533 Washbourne Brook Severn Trent Water 44 10 219 40
2534 Cowbridge Beck Northumbrian Water 28 10 219 141
2535 Pugney'S Drain Yorkshire Water 41 41 219 219
2536 Brailsford Brook Severn Trent Water 55 16 218 150
2537 South Drain Wessex Water 65 13 218 90
2538 Tidal River Chelmer Anglian Water 29 19 217 75
2539 Surface Water Sewer Yorkshire Water 23 16 217 160
2540 Little Dike Yorkshire Water 42 25 216 150
2541 Bedford Ouse Anglian Water 16 11 216 181
2542 Cudworth Dyke Yorkshire Water 60 17 216 151
2543 Dodnash Brook Anglian Water 16 16 216 216
2544 Millwood Brook Severn Trent Water 113 15 215 154
2545 Ffynnongroew Drain Dwr Cymru Welsh Water 16 5 215 115
2546 Prescot Brook Ditton Brk United Utilities 56 21 215 128
2547 Esturial Waters Of Inland Sea Dwr Cymru Welsh Water 61 4 215 43
2548 Stewards Brook United Utilities 76 -6 215 76
2549 Slake Northumbrian Water 20 -34 215 -260
2550 Tamerton Lake South West Water 60 15 215 5
2551 Stank Beck United Utilities 47 -29 215 -60
2552 High Royds Beck Yorkshire Water 104 19 215 94
2553 Main Drain River Hertford Yorkshire Water 76 17 215 85
2554 Yeovil Yeo, Wessex Water 26 1 214 70
2555 Stream Dike Yorkshire Water 37 23 214 177
2556 Wannock Mill Stream Southern Water 22 16 214 191
2557 Mar Dyke West Anglian Water 28 14 214 128
2558 Little Buck Beck Anglian Water 68 26 214 109
2559 Willow Brook River Nene Anglian Water 67 34 214 -7
2560 Mayland Brook Anglian Water 26 17 214 163
2561 Highwood Dike Yorkshire Water 59 5 214 151
2562 Lendall Carr Dyke Yorkshire Water 36 16 213 83
2563 Hampshire Avon Wessex Water 55 36 213 176
2564 Out Lane Dyke Yorkshire Water 47 23 213 143
2565 Grimmer Severn Trent Water 39 17 213 98
2566 Allen'S Brook Wessex Water 17 -11 213 -60
2567 Ilsham Valley Stream South West Water 78 77 212 212
2568 Gunnerton Burn Northumbrian Water 69 69 212 212
2569 Inner Moray Firth Scottish Water 46 30 212 189
2570 River Trent Via Beckvalley Cul Severn Trent Water 148 65 212 81
2571 Lynmouth Bay South West Water 56 21 212 132
2572 Ickornshaw Beck Yorkshire Water 100 2 212 -305
2573 Dalton Brook Yorkshire Water 38 9 211 58
2574 Cofton Stream South West Water 51 33 211 208
2575 Nant Wthan Dwr Cymru Welsh Water 38 38 211 211
2576 Todd Hole Dike/Mill Stream Yorkshire Water 89 14 211 41
2577 Trough Brook Yorkshire Water 64 19 211 70
2578 Barlow Burn Northumbrian Water 38 2 210 189
2579 River Tawd Via Sws United Utilities 122 72 210 144
2580 Red House Beck, Northumbrian Water 52 11 210 77
2581 Colne Estuary Anglian Water 55 49 210 201
2582 Calfpasture Burn Northumbrian Water 49 9 210 129
2583 Pill River Wessex Water 37 12 209 102
2584 Horden Burn Northumbrian Water 86 -26 209 37
2585 Un-Named Of Broughton Br Dwr Cymru Welsh Water 86 33 209 112
2586 Bradgate Brook Severn Trent Water 40 18 209 105
2587 Tollesbury Fleet To Blackwater Anglian Water 26 19 209 185
2588 Carrick Roads South West Water 22 3 208 202
2589 Alum Beck Leven Catchment Northumbrian Water 105 41 208 43
2590 Shires Beck Yorkshire Water 38 3 208 6
2591 Smawith Dike Yorkshire Water 27 5 208 95
2592 Warmley Brook Wessex Water 110 74 207 178
2593 Arkle Beck Yorkshire Water 62 16 207 156
2594 River Clyne Dwr Cymru Welsh Water 78 4 207 78
2595 Wrinstone Brook Dwr Cymru Welsh Water 67 47 207 106
2596 Millstream Wessex Water 23 8 207 132
2597 Middle Fen Drain Anglian Water 23 18 206 193
2598 River Rheidol Dwr Cymru Welsh Water 58 -29 206 3
2599 River Dart Via Sws South West Water 104 10 206 0
2600 Malago Wessex Water 72 34 205 150
2601 Asheldham Brook Anglian Water 28 19 205 164
2602 Rhondda River Dwr Cymru Welsh Water 116 51 205 97
2603 Kidsgrove Stream Wheelock United Utilities 14 -2 205 -73
2604 Wendling Beck Anglian Water 30 15 205 159
2605 Lumley Park Burn Northumbrian Water 50 28 204 138
2606 Byr Brook Dwr Cymru Welsh Water 28 24 204 202
2607 Leven Town Drain Yorkshire Water 32 25 204 120
2608 Radford Pill Dwr Cymru Welsh Water 62 -64 204 -2,555
2609 Tyersal Beck Yorkshire Water 59 12 204 0
2610 Alyn Dwr Cymru Welsh Water 88 31 204 154
2611 Backstone Beck River Derwe Northumbrian Water 24 13 204 131
2612 River Blaen-Y-Cae Dwr Cymru Welsh Water 64 -17 204 -58
2613 Spath Brook United Utilities 65 16 204 2
2614 River Weaver South West Water 24 -18 204 -218
2615 Cad Brook Wessex Water 19 7 203 81
2616 Coombe Bottom Brook, R Ouzel Anglian Water 10 10 203 203
2617 River Rymney Dwr Cymru Welsh Water 83 9 203 -202
2618 Duloe Brook Anglian Water 17 3 203 116
2619 Fagley Beck Yorkshire Water 82 23 202 66
2620 Black Brook Dwr Cymru Welsh Water 45 -11 202 37
2621 Hartley Brook Dike Yorkshire Water 79 -9 202 16
2622 Pitsea Creek Anglian Water 24 5 201 82
2623 Rud Beck Yorkshire Water 56 56 201 201
2624 Seacourt Stream Thames Water 37 37 201 201
2625 Cresswell River Dwr Cymru Welsh Water 44 32 201 166
2626 Dorton Brook Thames Water 46 31 201 176
2627 Clvrt Moor Brook Rvr Ribb United Utilities 23 5 201 90
2628 Heugh Syke - Of River Tees Northumbrian Water 37 -7 200 56
2629 Willow Brook Severn Trent Water 92 26 200 16
2630 Colden Water Yorkshire Water 19 17 200 170
2631 Ripton Brook Anglian Water 11 11 200 200
2632 Hepscott Burn Northumbrian Water 45 2 200 -125
2633 R Welland Anglian Water 13 13 200 200
2634 Sor Brook Thames Water 38 14 200 121
2635 Went Beck Yorkshire Water 93 11 199 47
2636 River Nant-Y-Goron Dwr Cymru Welsh Water 197 144 199 106
2637 Nant Mwrwg Tidal Dwr Cymru Welsh Water 96 38 199 87
2638 Chiddingfold Stream Southern Water 28 -20 199 -558
2639 Ormesby Beck Northumbrian Water 57 8 198 84
2640 River Crouch T Anglian Water 28 16 198 128
2641 Crow Brook United Utilities 78 23 198 -67
2642 Ham Brook South West Water 82 32 197 40
2643 Penmire Brook Severn Trent Water 55 48 197 164
2644 Queens Park Culvert United Utilities 74 11 197 113
2645 Milton Brook United Utilities 37 37 196 196
2646 River Severn Yorkshire Water 28 23 196 161
2647 Halstock Stream Wessex Water 38 8 196 -18
2648 Stanton Brook River We Anglian Water 66 20 195 51
2649 Stanningf'D R Lark Anglian Water 26 21 195 174
2650 Unnamed River Eau Severn Trent Water 25 18 195 162
2651 Common Brook Severn Trent Water 47 33 195 158
2652 Holme Brook Yorkshire Water 121 47 193 93
2653 Quy Water Bottisham Lode Anglian Water 33 25 193 190
2654 Hole Brook United Utilities 29 16 193 126
2655 Holes Bay Wessex Water 20 4 193 133
2656 River Camel Estuary South West Water 33 13 192 78
2657 Milton Beck United Utilities 93 48 192 126
2658 White Cart Water Scottish Water 67 2 192 -33
2659 Drain Beck Yorkshire Water 22 13 192 142
2660 Hoyle Mill Beck Yorkshire Water 39 7 192 109
2661 Castle Hill Stream South West Water 156 -16 191 43
2662 River Aman Dwr Cymru Welsh Water 78 -19 191 27
2663 Great Stour River Southern Water 25 17 190 167
2664 Hogsmill River Thames Water 37 27 190 119
2665 Rough Dene Burn Northumbrian Water 62 10 189 88
2666 Spital Brook Yorkshire Water 36 14 189 110
2667 River Orwell T Anglian Water 94 71 189 177
2668 River Orwell Anglian Water 140 -21 189 61
2669 Blanksmill Creek South West Water 36 27 189 170
2670 Rushyford Beck, Northumbrian Water 28 2 188 72
2671 Penketh Brook United Utilities 93 18 188 27
2672 River Ebbw Fawr Dwr Cymru Welsh Water 55 22 188 58
2673 Landcourse Rhyne Wessex Water 57 35 187 124
2674 Ching Brook Thames Water 67 6 187 -35
2675 Tamerton Stream South West Water 18 2 187 100
2676 Nant Menascin Dwr Cymru Welsh Water 27 27 187 187
2677 Rodbourne Brook Wessex Water 34 -49 186 148
2678 To Chichester Harbour Southern Water 18 14 185 146
2679 Alverthorpe Beck Yorkshire Water 120 28 185 57
2680 River Goyt Via Sws United Utilities 90 88 185 180
2681 Carrog Dwr Cymru Welsh Water 94 10 185 32
2682 Chapel Beck - Howl Beck System Northumbrian Water 26 25 185 182
2683 Longbrook South West Water 50 16 184 84
2684 Colletts Brook Severn Trent Water 35 7 183 29
2685 Bacchus Brook United Utilities 20 15 183 163
2686 River Irwell Via Sws United Utilities 144 41 183 113
2687 Nant Caeach Dwr Cymru Welsh Water 14 14 183 183
2688 Rainworth Water Severn Trent Water 50 7 182 81
2689 Bothal Burn Northumbrian Water 60 16 182 118
2690 Cuddington Brook United Utilities 74 44 182 163
2691 Queniborough Brook Severn Trent Water 22 3 182 75
2692 Waylen Brook Wessex Water 25 2 181 78
2693 Whitewell Brook United Utilities 44 18 181 63
2694 Roman River Anglian Water 30 19 181 163
2695 King Lane Beck Yorkshire Water 64 2 181 65
2696 Waddington Brook United Utilities 85 27 180 78
2697 Scarrow Beck Anglian Water 32 17 180 107
2698 Singing Clough Brook United Utilities 57 54 180 175
2699 Welton Bank Drain Yorkshire Water 54 19 180 122
2700 Westbrook Yorkshire Water 30 -41 179 -299
2701 River Tees Estuary Northumbrian Water 105 36 179 113
2702 Easton Brook River Welland Anglian Water 33 22 179 173
2703 Pipe Strine Severn Trent Water 33 13 179 121
2704 Herons Ghyll Southern Water 37 2 179 6
2705 River Caledffwrd Dwr Cymru Welsh Water 44 10 179 63
2706 Hobhole Drain Anglian Water 30 25 178 162
2707 New Wryde Drain Anglian Water 38 7 178 71
2708 Freeby Brook Severn Trent Water 49 18 177 108
2709 Brixworth Branch Of R Nen Anglian Water 47 41 177 168
2710 Cvrt Sec Middle Brook R R United Utilities 93 93 177 177
2711 Swine Syke Drain Anglian Water 49 20 177 88
2712 Wince Brook, River Irk United Utilities 80 20 177 59
2713 S W Sewer Dwr Cymru Welsh Water 43 12 177 95
2714 Sheepscar Beck Yorkshire Water 74 9 176 55
2715 Clvrtd Pudsey Beck Yorkshire Water 78 41 176 127
2716 Kinkerdale Beck Northumbrian Water 33 3 176 90
2717 Portmellon Stream South West Water 46 18 176 147
2718 Hoeford Lake Southern Water 41 26 176 108
2719 Starston Beck River Waveney N Anglian Water 26 10 176 89
2720 Boundary Brook Riv Ribble United Utilities 38 24 176 90
2721 Freshwater Wessex Water 33 7 176 89
2722 River Win Wessex Water 36 19 176 152
2723 Rowlington Burn Northumbrian Water 55 11 176 57
2724 Lemington Gut Northumbrian Water 59 20 175 120
2725 Maplehurst Stream Southern Water 24 9 175 80
2726 Avon Lwyd Dwr Cymru Welsh Water 56 6 175 18
2727 Lea Brook Severn Trent Water 47 35 175 167
2728 Whitecliff Beck Northumbrian Water 27 15 175 131
2729 River Lavant Southern Water 19 14 175 138
2730 Wallers Haven Southern Water 31 16 175 90
2731 Whatcote Brook Severn Trent Water 17 5 174 50
2732 Axe Estuary Wessex Water 26 18 174 135
2733 Holywell Stream Dwr Cymru Welsh Water 92 22 174 63
2734 Sherston Avon Wessex Water 95 42 174 154
2735 Mobberley Brook Severn Trent Water 46 10 174 51
2736 Syd Brook United Utilities 51 11 174 47
2737 Emm Brook Thames Water 30 14 174 99
2738 River Hiz Anglian Water 103 49 173 -22
2739 Frodingham Mill Drain Yorkshire Water 45 11 172 114
2740 Kirby Brook Anglian Water 88 42 172 136
2741 Graiseley Brook Severn Trent Water 91 42 172 60
2742 Broughton Brook Dwr Cymru Welsh Water 58 24 172 109
2743 Ock Brook Severn Trent Water 44 2 171 121
2744 Layer Brook Anglian Water 31 29 171 163
2745 Loxford Water Thames Water 55 16 171 42
2746 Bristol Channel Dwr Cymru Welsh Water 45 41 171 164
2747 . United Utilities 62 14 170 67
2748 Long Whatton/Diseworth Brook Severn Trent Water 27 16 170 152
2749 Chevington Burn Northumbrian Water 20 15 170 155
2750 Cinderfield Dike Yorkshire Water 67 44 170 139
2751 Picknill Green Stream Southern Water 37 21 170 100
2752 River Meirchion Dwr Cymru Welsh Water 90 18 170 45
2753 Fiddington Book Wessex Water 27 16 170 87
2754 Long Sutton Main Drain Wessex Water 20 11 170 83
2755 Prestwold Hall Brook Severn Trent Water 32 11 170 60
2756 Wellshaw Burn Scottish Water 27 9 169 -58
2757 Pool Brook Severn Trent Water 18 4 169 65
2758 Sewerbridge Beck Yorkshire Water 60 20 169 41
2759 Wiza Beck United Utilities 118 89 169 133
2760 Rookery Brook Kidsgrove S United Utilities 23 13 168 112
2761 Little Haven Stream Dwr Cymru Welsh Water 16 11 168 147
2762 Mill Beck/ Cavendish Dock United Utilities 25 17 168 152
2763 Tidal River Wyre United Utilities 50 50 168 168
2764 Helpringham Eau South Forty Fo Anglian Water 17 -51 168 -40
2765 Various Sites River Soar Severn Trent Water 26 18 167 135
2766 Leeds/Liverpool Canal Yorkshire Water 81 75 167 165
2767 Castle Hill Stream Via Sws South West Water 8 -35 167 -608
2768 River Weycock Dwr Cymru Welsh Water 22 22 167 167
2769 Whiteadder Water Scottish Water 18 0 167 79
2770 Bent Lanes Brook Via Sw Sewer United Utilities 81 23 167 56
2771 Dene Beck Northumbrian Water 42 3 167 104
2772 Of Wear Estuary Northumbrian Water 61 11 166 86
2773 Fryston Beck Yorkshire Water 32 5 166 53
2774 Houghwell Burn Northumbrian Water 48 9 166 75
2775 Queensferry Ditch Dwr Cymru Welsh Water 28 -20 166 -36
2776 River Hindburn United Utilities 181 -34 165 41
2777 Glanyrafon Brook Dwr Cymru Welsh Water 88 43 165 141
2778 Kilmersdon Stream Wessex Water 39 -5 165 1
2779 Arrowe Brook River Birkett United Utilities 36 36 165 165
2780 South Forty Foot Drain Anglian Water 40 40 164 164
2781 Waddingham Beck Anglian Water 21 16 164 142
2782 Herringthorpe Beck Yorkshire Water 82 18 164 67
2783 Clvrt River Dearne Yorkshire Water 62 5 164 22
2784 Howbery Ditch Thames Water 12 12 164 164
2785 Pont Shan Brook Dwr Cymru Welsh Water 41 41 163 163
2786 Sherbourne Brook Severn Trent Water 14 12 163 159
2787 Cam Brook Severn Trent Water 40 -22 163 -204
2788 Dart River Estuary South West Water 91 34 162 103
2789 Bache Brook Dwr Cymru Welsh Water 75 15 162 -40
2790 Ebbw Fach River Dwr Cymru Welsh Water 32 -3 162 82
2791 Longwood Mill Brook United Utilities 46 21 162 107
2792 Venn River South West Water 52 14 162 150
2793 Measborough Dike Yorkshire Water 45 -6 161 40
2794 Tin River, River Waveney Anglian Water 24 12 161 141
2795 Dulas North Dwr Cymru Welsh Water 13 9 161 152
2796 Ffos Ddu Dwr Cymru Welsh Water 32 15 161 112
2797 Easington Drain Yorkshire Water 35 33 160 159
2798 Ouse Burn Estuary Northumbrian Water 74 -10 160 18
2799 Culverted River Aire Yorkshire Water 121 -13 160 41
2800 River Wey/Ockham Mill Stream Thames Water 22 9 160 78
2801 River Biss Via Sws Wessex Water 33 12 160 78
2802 Eye Brook Anglian Water 9 9 160 160
2803 Warbleton Stream Southern Water 35 13 159 13
2804 Drain To River Yar Southern Water 17 15 159 147
2805 Longford Brook Ship Canal United Utilities 24 18 159 157
2806 Washle Brook Thames Water 19 8 159 101
2807 Merlin'S Brook Dwr Cymru Welsh Water 43 26 159 122
2808 Garsiwn River Dovey Dwr Cymru Welsh Water 93 54 158 120
2809 Low Moor Beck Yorkshire Water 46 24 158 65
2810 Pools Dike Yorkshire Water 54 43 157 136
2811 Gransden Brook Anglian Water 20 10 157 120
2812 Gwendraeth Fach Estuary Dwr Cymru Welsh Water 64 36 157 144
2813 Whitsun Brook Severn Trent Water 65 -1 157 -42
2814 Marshcourt River Southern Water 22 -8 156 -221
2815 Drain To Western Yar Southern Water 23 8 156 112
2816 Hazeley Brook United Utilities 78 9 156 -36
2817 River Eitha Dwr Cymru Welsh Water 45 33 156 127
2818 Clvrt'D Section Knuzden Brook United Utilities 70 17 156 83
2819 Broadford Bay Scottish Water 28 -52 156 -534
2820 Station Road Brook Severn Trent Water 44 1 156 109
2821 Nant Llynfell Dwr Cymru Welsh Water 42 -11 156 22
2822 Gains Brook Severn Trent Water 45 17 155 79
2823 River Leadon Severn Trent Water 104 59 155 112
2824 River Loughor Estuary Dwr Cymru Welsh Water 11 -6 155 132
2825 Holton Beck Louth Canal Anglian Water 46 -58 154 -33
2826 Skeeby Beck Yorkshire Water 45 20 154 117
2827 Willy Beck United Utilities 52 12 154 120
2828 River Tweed Severn Trent Water 24 9 154 21
2829 Tipalt Burn Northumbrian Water 26 5 154 47
2830 Burroughs Bank Brook Severn Trent Water 20 20 153 153
2831 River Llifon Dwr Cymru Welsh Water 55 10 153 40
2832 Ashridge Stream Thames Water 20 -3 152 -36
2833 Chorlton Brook Via Culvert United Utilities 71 42 152 124
2834 Poaka Beck United Utilities 77 13 152 85
2835 Freshwater River Great Stour Southern Water 19 9 152 119
2836 Fowler Bridge Drain Yorkshire Water 30 21 152 112
2837 Black Brook Via Sws United Utilities 84 20 151 84
2838 Carleton Beck Yorkshire Water 67 1 151 24
2839 Ram'S Brook United Utilities 62 9 151 63
2840 River Kennett Anglian Water 33 14 151 125
2841 Saltmill Creek South West Water 48 -15 151 69
2842 Ellams Brook, Newton Brook United Utilities 42 23 151 112
2843 Nant Y Wilcae Dwr Cymru Welsh Water 34 22 151 131
2844 Denton Brook United Utilities 79 -13 150 -49
2845 River Annas, Syke Beck United Utilities 30 13 150 50
2846 Deanoak Brook Thames Water 31 30 150 147
2847 Blackhouse Dike Yorkshire Water 54 -4 150 66
2848 Don Via Surface Water Sewer Yorkshire Water 20 20 150 150
2849 River Ceiriog Dwr Cymru Welsh Water 70 -134 150 -629
2850 Dow Brook Frecklton Pl United Utilities 61 24 149 87
2851 Sywell Reservoir Anglian Water 47 21 149 100
2852 Trout Beck United Utilities 39 -2 148 67
2853 Toppesfield Brook River Colne Anglian Water 36 -1 148 12
2854 Kyd Brook Thames Water 45 14 148 53
2855 No Details Yorkshire Water 64 2 148 -105
2856 Lady Brook United Utilities 75 13 148 12
2857 Elsdon Burn Northumbrian Water 37 37 148 148
2858 Loftus Beck Northumbrian Water 36 20 148 104
2859 Nore Rithe/Emsworth Harbour Southern Water 16 10 148 114
2860 Brackendale Beck Yorkshire Water 62 10 148 64
2861 Liggard Brook United Utilities 67 38 148 94
2862 Boundary Brook United Utilities 79 9 147 62
2863 Otterham Creek Southern Water 145 33 147 23
2864 Golftyn Brook Dwr Cymru Welsh Water 35 12 147 48
2865 Morecambe Bay Estuarine Wtrs United Utilities 42 42 147 147
2866 Unnamed Drain Anglian Water 30 12 147 113
2867 Monktonmead Brook Southern Water 27 -1 146 54
2868 Loughour Estuary Dwr Cymru Welsh Water 48 48 146 146
2869 Unnamed Dicth/Stream Southern Water 33 17 146 44
2870 Brinscall Brook United Utilities 25 7 146 46
2871 Sheff Yorkshire Water 57 17 145 59
2872 Clvrt Singing Clough Brook United Utilities 71 71 145 145
2873 Solway Firth At Silloth Bay United Utilities 26 16 145 126
2874 Cattewater South West Water 75 0 145 -71
2875 Yar Estuary Southern Water 17 9 145 131
2876 Usworth Burn Northumbrian Water 38 14 145 109
2877 Batley Beck Yorkshire Water 73 12 145 42
2878 River Pill Wessex Water 19 19 144 144
2879 Swansea Bay Dwr Cymru Welsh Water 32 -24 144 -160
2880 Nant Yr Ystruth Dwr Cymru Welsh Water 70 10 144 11
2881 Wain Dike Beck Yorkshire Water 37 12 144 70
2882 Cadnant - Caernarfon Dwr Cymru Welsh Water 97 13 144 25
2883 Desach Dwr Cymru Welsh Water 104 13 144 25
2884 Birkley Burn Northumbrian Water 37 8 143 91
2885 Weaver Navigation United Utilities 127 30 143 65
2886 Bull Brook Thames Water 17 9 143 110
2887 Culverted River Hertford Yorkshire Water 39 19 143 111
2888 Brook River Nene Anglian Water 52 34 143 93
2889 Sewer To Aller Brook South West Water 36 32 143 141
2890 Harpers Brook, River Nene Anglian Water 21 10 143 91
2891 Lady Beck River Eamont United Utilities 42 11 142 47
2892 Lumb Brook United Utilities 75 21 142 51
2893 Norton Fine Gill, Northumbrian Water 42 14 142 65
2894 Rothley Brook Via Surf Sewer Severn Trent Water 72 72 142 142
2895 Binstead Stream Southern Water 27 10 142 71
2896 Culverted River Calder Yorkshire Water 19 -39 142 31
2897 Ditch South West Water 42 33 141 74
2898 Stonehouse Creek South West Water 58 1 141 -514
2899 Fleakingley Beck Yorkshire Water 49 -3 141 -111
2900 Unnamed River Douglas United Utilities 62 -18 141 24
2901 Tidal River Medway Southern Water 24 11 141 127
2902 Were Via Sws Wessex Water 45 19 141 65
2903 Catchwater Drn Yorkshire Water 29 15 141 121
2904 Esturial Waters At Hakin Point Dwr Cymru Welsh Water 74 8 141 19
2905 Otmoor Lane Ditch Thames Water 22 20 141 122
2906 Broad Bridge Dyke Severn Trent Water 41 13 141 -195
2907 Shutterton Brook South West Water 133 90 141 85
2908 Northop Brook Dwr Cymru Welsh Water 26 -12 141 -250
2909 Wiske/Swale Yorkshire Water 73 23 141 91
2910 Un Wold Grift D Anglian Water 24 20 140 129
2911 Glaslyn Estuary Within Glaslyn Dwr Cymru Welsh Water 22 12 140 117
2912 Harmby Beck Yorkshire Water 36 -1 140 76
2913 Lincoln Brook Severn Trent Water 12 -25 140 -315
2914 Threapland Gill United Utilities 49 39 140 113
2915 Shropshire Brook Severn Trent Water 30 15 139 105
2916 Share Ditch Thames Water 19 16 139 129
2917 Martin Brook Severn Trent Water 45 31 139 119
2918 Farnham Bourne Thames Water 20 4 139 21
2919 Boardman Brook United Utilities 53 29 139 98
2920 Fords Lake Stream Dwr Cymru Welsh Water 23 -32 139 -764
2921 Meers Brook Culverted Yorkshire Water 56 25 139 90
2922 Newtown River Southern Water 9 1 139 95
2923 Culverted Scarcroft Beck Yorkshire Water 63 28 139 97
2924 Esturial Water Of River Neath Dwr Cymru Welsh Water 77 11 139 49
2925 Langley Brook Severn Trent Water 36 -4 138 -11
2926 Laver Yorkshire Water 46 15 138 77
2927 Meanwood Beck Yorkshire Water 111 0 138 -46
2928 River Strine Severn Trent Water 49 16 138 70
2929 Sneyd Brook Severn Trent Water 65 13 138 25
2930 St Lawrence Stream South West Water 140 53 138 71
2931 Swan Pool Drain Dwr Cymru Welsh Water 28 18 137 109
2932 Tidal River Thames Southern Water 76 -12 137 -53
2933 Saundersfoot Stream Dwr Cymru Welsh Water 72 38 137 86
2934 S/W Sewer To Aller Brook South West Water 67 -12 137 -49
2935 Drayton Drain Wessex Water 14 6 137 125
2936 Leas Brook Severn Trent Water 74 -16 136 -75
2937 Danes Dyke Yorkshire Water 66 12 135 58
2938 Baker Lane Brook Severn Trent Water 46 17 135 100
2939 River Burn Anglian Water 18 11 135 131
2940 Leeds/Liverpool Canal United Utilities 16 3 135 62
2941 Kirklees Brook United Utilities 49 49 135 135
2942 Shirley Brook Severn Trent Water 39 6 135 12
2943 Dowlish Brook Wessex Water 24 20 135 104
2944 Honksford Brook United Utilities 68 3 135 55
2945 Bagpuize Brook Thames Water 25 20 135 125
2946 Sw System Dwr Cymru Welsh Water 12 1 135 14
2947 Old Mill Creek Via Sws South West Water 21 -2 134 50
2948 River Brent Thames Water 69 41 134 69
2949 Whittle Burn, Tyne Northumbrian Water 39 21 134 118
2950 Ochre Dyke Yorkshire Water 64 15 134 33
2951 Tunstall Beck Yorkshire Water 34 17 134 119
2952 Ridding Brook Clvrt Via Sws Yorkshire Water 71 19 134 40
2953 Arrowe Brook River Birket United Utilities 65 45 133 78
2954 Culvrtd Glossop Brk Sws United Utilities 43 43 133 133
2955 Nant Gyrlais Dwr Cymru Welsh Water 60 23 133 37
2956 Holme/Eastburn Beck Yorkshire Water 60 -3 133 -146
2957 River Roach Anglian Water 19 11 133 108
2958 Cotton Mill Beck Yorkshire Water 67 9 133 19
2959 Sence Brook Severn Trent Water 31 19 133 93
2960 Sow Brook United Utilities 14 9 133 104
2961 Horn Brook Southern Water 30 29 132 132
2962 River Chet Anglian Water 16 10 132 118
2963 River Carey Wessex Water 19 6 132 97
2964 Embleton Burn Northumbrian Water 30 -2 132 115
2965 Micker Brook United Utilities 69 6 132 -387
2966 Cefni - Cefni Reservoir West Dwr Cymru Welsh Water 66 -2 132 45
2967 Shyte Brook Severn Trent Water 50 23 132 103
2968 Lliswerry Pill Reen Dwr Cymru Welsh Water 15 10 132 125
2969 Findhorn Bay - via tidal reaches of the Mosset Burn Scottish Water 12 12 132 132
2970 River Plym Estuary South West Water 59 34 132 92
2971 Hatlex Beck United Utilities 20 9 131 103
2972 Healey Dell United Utilities 49 49 131 131
2973 Fossdyke Navigation Canal Anglian Water 54 30 131 105
2974 Blencarn Beck United Utilities 14 14 131 131
2975 Colliers Brook Severn Trent Water 11 8 130 114
2976 Of Gore Burn Northumbrian Water 23 13 130 85
2977 Riding Mill Burn Northumbrian Water 27 3 130 114
2978 R Exe South West Water 13 11 130 128
2979 Somerby Brook Severn Trent Water 38 -74 130 -778
2980 River Cyll-Y-Felin Dwr Cymru Welsh Water 18 16 130 114
2981 Gamblesby Beck United Utilities 36 16 129 66
2982 Waller Hill Beck Yorkshire Water 70 70 129 129
2983 Culverted River Nene Anglian Water 30 30 129 129
2984 Corn Brook Severn Trent Water 38 -300 128 -209
2985 Cockshaw Burn Northumbrian Water 55 20 128 108
2986 Nant Morlais Dwr Cymru Welsh Water 70 8 128 19
2987 River Henddol Dwr Cymru Welsh Water 24 18 128 102
2988 Farsley Beck Yorkshire Water 71 10 128 62
2989 East Okement River South West Water 140 24 127 56
2990 Cleugh Burn Northumbrian Water 31 31 127 127
2991 Pildacre Mill Beck Yorkshire Water 50 15 127 58
2992 Nor Beck Northumbrian Water 18 18 127 127
2993 Mill Race, River Exe South West Water 40 13 127 78
2994 Elmley Castle Brook Severn Trent Water 15 11 127 123
2995 Angarrack Strean South West Water 54 8 127 46
2996 Llyn Nantlle Uchaf Dwr Cymru Welsh Water 71 11 126 26
2997 Ale Water Scottish Water 16 -4 126 -931
2998 Culverted River Colne Yorkshire Water 67 9 126 43
2999 Hartendale Gutter Yorkshire Water 39 11 126 73
3000 Red Brook Yorkshire Water 32 28 126 122
3001 Nant Arian Dwr Cymru Welsh Water 54 18 126 59
3002 Nant Muchydd Dwr Cymru Welsh Water 15 -6 126 -154
3003 Ouse Gill Beck Yorkshire Water 38 -20 126 14
3004 Clvrt River Aire Yorkshire Water 47 10 125 55
3005 Rayleigh East Brook Anglian Water 14 9 125 92
3006 River Eye + Various Brooks Severn Trent Water 13 -16 125 -97
3007 Estuarial Waters Of River Alaw Dwr Cymru Welsh Water 39 17 125 64
3008 Of Common Lake Stream South West Water 93 18 125 59
3009 F/E-River Avon, Cso-River Biss Wessex Water 17 5 125 64
3010 Clyne River Dwr Cymru Welsh Water 40 15 124 47
3011 New Burn Northumbrian Water 57 18 124 74
3012 Thornhurst Brook Thames Water 23 7 124 47
3013 Blackbridge Brook Southern Water 42 36 124 105
3014 River Don Via Pubic Sewer Yorkshire Water 46 12 124 64
3015 Dobbs Beck, River Bure Anglian Water 19 15 124 112
3016 Callow Brook Severn Trent Water 86 9 123 34
3017 Parr Brook Via Sws United Utilities 83 14 123 39
3018 Stanford Creek: Tidal River Thames Anglian Water 30 30 123 123
3019 Dub Beck United Utilities 32 17 122 90
3020 Langstone Harbour Southern Water 34 10 122 80
3021 Eaves Brook Savick Brook United Utilities 11 7 122 101
3022 Nailstone Brook Severn Trent Water 23 21 122 121
3023 Dittisham Mill Creek-Estuarine South West Water 40 17 122 89
3024 Northbrook South West Water 57 25 122 82
3025 Jenny Beck Rvr Croal United Utilities 73 15 122 48
3026 River Ribble Tidal Via Sws United Utilities 14 6 122 72
3027 Rivacre Brook United Utilities 54 -11 121 44
3028 Rasa Brook Dwr Cymru Welsh Water 53 -1 121 24
3029 Hellaby Dyke Severn Trent Water 28 15 121 78
3030 Harworth Dyke Severn Trent Water 21 5 121 54
3031 South Low Northumbrian Water 19 12 121 89
3032 Potto Beck Northumbrian Water 12 4 121 71
3033 Kearsley Brook Yorkshire Water 41 -116 121 -143
3034 Bat Burn Northumbrian Water 19 14 121 101
3035 Leeds Yorkshire Water 60 -7 120 -71
3036 Mynachdy Brook Dwr Cymru Welsh Water 14 -109 120 -2,661
3037 Yeadon Gill Yorkshire Water 31 9 120 23
3038 Saredon Brook, Ridings Brook Severn Trent Water 21 5 119 62
3039 Horsenden Stream Thames Water 14 4 119 61
3040 Alfreton/Normanton Brook Severn Trent Water 23 16 119 108
3041 Godshill Stream Southern Water 34 15 119 87
3042 Limy Water United Utilities 68 38 119 51
3043 Saline Estuary Southern Water 42 28 119 90
3044 Doupster Burn Northumbrian Water 22 5 119 82
3045 Culv River Holme Yorkshire Water 16 -10 119 -39
3046 Auburn Beck Yorkshire Water 15 14 119 115
3047 Thorpe Dyke Yorkshire Water 62 15 119 26
3048 Twyford Brook Severn Trent Water 31 -16 118 -46
3049 Adjacent Stream. River Adur Southern Water 6 2 118 87
3050 Stowlangtoft Stream Anglian Water 25 14 118 87
3051 Ellen Brook Culvert United Utilities 57 11 118 48
3052 Kirk Bridge Dike Yorkshire Water 70 16 118 20
3053 River Ythan Scottish Water 17 -1 117 72
3054 Cock Shot Brook United Utilities 56 36 117 82
3055 Clarkes Beck United Utilities 82 29 117 72
3056 Berthin Brook Dwr Cymru Welsh Water 36 10 117 -5
3057 Pingle Brook Severn Trent Water 23 3 117 64
3058 Ulley Brook Yorkshire Water 28 5 117 -7
3059 Wansbeck, Northumbrian Water 37 -1 117 18
3060 Catchwater Drain Anglian Water 19 9 117 100
3061 Stream At Winspit Botttom Wessex Water 36 15 116 65
3062 Thistlewood Brook Severn Trent Water 18 2 116 42
3063 Dowlias Brook Dwr Cymru Welsh Water 37 9 116 2
3064 Grewburn Beck Northumbrian Water 53 18 116 34
3065 Pulford Brook Dwr Cymru Welsh Water 42 2 116 41
3066 Bourne Wessex Water 34 7 116 65
3067 River Cober Via Sws South West Water 85 17 116 51
3068 North Soak Drain Yorkshire Water 63 29 116 52
3069 Hornsmill Brook United Utilities 34 7 116 -13
3070 Wellhams Brook Wessex Water 104 46 116 85
3071 Rhondda Fach River Dwr Cymru Welsh Water 67 14 116 18
3072 Trosnant Brook Dwr Cymru Welsh Water 131 85 116 27
3073 Ports Creek Southern Water 40 0 115 4
3074 Lambrok Stream Wessex Water 17 8 115 75
3075 Wash Burn Northumbrian Water 50 9 115 69
3076 River Menahyl South West Water 48 14 115 0
3077 Mitchell Brook Thames Water 47 18 115 52
3078 Stanley Brook Severn Trent Water 35 25 115 103
3079 Birdforth Beck Yorkshire Water 71 -2 114 -37
3080 Clvrtd Dean Beck Yorkshire Water 47 17 114 61
3081 Dalton Beck Northumbrian Water 19 7 114 97
3082 Soar Brook Severn Trent Water 98 7 114 -19
3083 Old Durham Beck Northumbrian Water 21 13 114 87
3084 Dimore Brook Severn Trent Water 24 9 114 33
3085 Dyan Beck United Utilities 40 -37 114 -102
3086 Newnes Brook Severn Trent Water 77 5 114 59
3087 Castle Eden Burn Northumbrian Water 25 4 114 77
3088 Footherley Brook Severn Trent Water 36 9 114 0
3089 Tidal River Tone Wessex Water 7 4 114 105
3090 Tri Of River Strine Severn Trent Water 47 -5 114 20
3091 Chainley Burn Northumbrian Water 55 20 114 83
3092 Lee Thames Water 14 -5 114 21
3093 Cotting Burn Northumbrian Water 55 36 113 69
3094 Carcut Beck Northumbrian Water 63 9 113 -15
3095 Long Clough Brook United Utilities 70 11 113 -200
3096 Savick Brook Rvr Ribble United Utilities 11 5 113 78
3097 Kittling Greaves Brook Severn Trent Water 26 15 113 101
3098 River Cale Via Sws Wessex Water 24 11 113 82
3099 Glodwick Brook United Utilities 31 -2 112 13
3100 Duck Brook Severn Trent Water 54 37 112 87
3101 Ditton Brook Via Sws United Utilities 54 54 112 112
3102 Medbourne Brook Anglian Water 9 9 112 112
3103 Wood Hill Brook Thames Water 11 9 112 99
3104 Kings Dyke Anglian Water 11 11 111 111
3105 Eldersbriar Brook United Utilities 67 0 111 17
3106 River Fromus River Alde Anglian Water 14 8 111 100
3107 Barrock Gill United Utilities 33 15 111 71
3108 Cropwell Bishop Brook Severn Trent Water 38 2 111 -54
3109 Pudesy Beck Yorkshire Water 59 59 111 111
3110 Salmon Brook Thames Water 18 3 110 -9
3111 Dagenham Brook Thames Water 35 3 110 -46
3112 Higher Brixham Stream South West Water 37 11 110 47
3113 Higher Least Via Sw Sewer South West Water 51 24 110 69
3114 Calder+Hebble Navigation Canal Yorkshire Water 66 56 110 94
3115 Sturdy Beck Yorkshire Water 35 2 110 30
3116 Pipers Hill Drain River Great Anglian Water 35 13 110 86
3117 Honicknowle Stream South West Water 56 -3 110 -47
3118 Lowca Beck United Utilities 65 39 110 64
3119 Helliers Stream Via Sws Wessex Water 16 8 109 103
3120 Birkin Brook Via Sws United Utilities 70 70 109 109
3121 Ten Mile River Anglian Water 44 30 109 93
3122 Tidal River Stour Anglian Water 36 15 109 93
3123 Black Brook Southern Water 42 -3 108 8
3124 Three Pools Waterway United Utilities 76 -30 108 -12
3125 River Clun Via An Unnamed Ditch Dwr Cymru Welsh Water 66 27 108 27
3126 Wealdstone Brook Thames Water 59 3 108 -20
3127 Rennington Burn Northumbrian Water 23 16 108 101
3128 Bellassis Burn Northumbrian Water 42 14 107 67
3129 Kirton Stream Anglian Water 16 15 107 107
3130 Clwyd Dwr Cymru Welsh Water 19 3 107 36
3131 Hooe Lake South West Water 55 -11 107 -27
3132 River Wriggle Wessex Water 18 4 107 12
3133 Dick Brook Severn Trent Water 23 -17 107 66
3134 Leven Northumbrian Water 25 25 107 107
3135 Dunkirk Dib United Utilities 57 15 106 56
3136 Roundwood Brook Yorkshire Water 27 8 106 46
3137 Westbury Brook Severn Trent Water 18 4 106 72
3138 Un River Ouzel Anglian Water 12 5 106 71
3139 Savick Bk, Ribble Est United Utilities 40 15 105 61
3140 Nant Brook Dwr Cymru Welsh Water 29 12 105 55
3141 Kent Channel United Utilities 30 12 105 -8
3142 Hunts Brook United Utilities 21 21 105 105
3143 River Crimple Via Sewer Yorkshire Water 47 10 105 30
3144 Culverted Section River Darwen United Utilities 79 7 105 36
3145 Norton Brook Grand Union Canal Anglian Water 75 19 105 -2
3146 Tidal River Piddle Wessex Water 27 17 105 85
3147 Unknown Yorkshire Water 35 6 105 -3
3148 Whitelass Beck Yorkshire Water 36 4 104 56
3149 Town Dyke Yorkshire Water 37 2 104 24
3150 Stour Brook Anglian Water 11 2 104 39
3151 Bourne/Black/Crane Brook Severn Trent Water 32 24 104 93
3152 Tinkers Leen Severn Trent Water 25 20 104 96
3153 Cecilly Brook Severn Trent Water 84 0 104 -11
3154 Cow Beck Yorkshire Water 70 10 104 30
3155 Nutter Beck Yorkshire Water 18 11 104 55
3156 Worsborough Reservoir Yorkshire Water 39 9 104 31
3157 Range Dike Yorkshire Water 10 5 103 61
3158 Scawpie Dean Northumbrian Water 25 14 103 93
3159 Wells Brook Thames Water 64 9 103 2
3160 Branscombe Stream South West Water 13 12 103 99
3161 Mousesweet Brook Severn Trent Water 93 38 102 67
3162 Cambuscurrie Bay Scottish Water 10 6 102 74
3163 North Dene Burn Northumbrian Water 54 10 102 63
3164 Wallsend Burn Saline Estuary Northumbrian Water 52 17 102 45
3165 River Severn Wessex Water 60 23 102 75
3166 River Waveney T Anglian Water 36 19 102 -9
3167 Bell Lane Creek Thames Water 41 20 102 56
3168 Oswestry Brook Severn Trent Water 45 15 102 54
3169 River Roch Via Sws United Utilities 127 59 102 -101
3170 River Medina Estuary Southern Water 59 25 102 -97
3171 An Unamed Drain Anglian Water 7 7 102 102
3172 Backstone Burn Northumbrian Water 74 5 102 12
3173 River Penrhos Dwr Cymru Welsh Water 47 -5 102 11
3174 St Mellion Stream South West Water 24 7 101 3
3175 Uttoxeter Brook Severn Trent Water 91 12 101 34
3176 Little Stanney Drain United Utilities 46 2 101 44
3177 Cairn Beck United Utilities 70 2 101 0
3178 Culverted River Wharfe Yorkshire Water 33 -5 101 -43
3179 Thorpe Beck, Bill.Beck Northumbrian Water 61 26 101 78
3180 Limy Water Irwell United Utilities 26 26 101 101
3181 Lam Brook Wessex Water 65 30 101 75
3182 River Wyle Via Were Wessex Water 75 19 100 30
3183 Rvr Irwell Via Langwood Brook United Utilities 81 -3 100 -17
3184 Fishponds Brook Via Sws Wessex Water 33 16 100 80
3185 Walmersley Brook United Utilities 75 14 100 31
3186 Elmley/Hadley Brook Severn Trent Water 24 6 100 -64
3187 Fleet Beck Northumbrian Water 48 16 100 51
3188 Swillbrook Clvrt R Ribble United Utilities 18 10 100 80
3189 White Cross Beck Northumbrian Water 37 6 100 56
3190 An Barnaby Pil Dwr Cymru Welsh Water 22 14 100 61
3191 Llanion Pill, Milford Haven Dwr Cymru Welsh Water 94 8 100 -31
3192 Wallsend Burn Northumbrian Water 40 -18 100 26
3193 O Teign Estuary South West Water 68 25 99 60
3194 Small Bridge Dyke Yorkshire Water 53 8 99 30
3195 Workhouse Lake, Portsmouth Hbr Southern Water 12 0 99 64
3196 Nant Cylla Dwr Cymru Welsh Water 49 5 99 33
3197 Gore Burn Northumbrian Water 18 6 99 61
3198 Letch Beck Northumbrian Water 24 -11 98 -180
3199 Ford Green Brook Severn Trent Water 97 47 98 56
3200 Bremere Rife Southern Water 9 6 98 81
3201 Brook Dike Yorkshire Water 87 40 98 54
3202 Cound Brook Severn Trent Water 49 -3 98 20
3203 Darlaston Brook Severn Trent Water 40 32 98 67
3204 River Meese Severn Trent Water 35 11 97 23
3205 Burton Beck Northumbrian Water 39 13 97 67
3206 Surface Water System Dwr Cymru Welsh Water 44 6 97 39
3207 Moss Yorkshire Water 34 -18 97 -173
3208 Castle Carrock Beck United Utilities 96 37 97 -354
3209 Cegin Dwr Cymru Welsh Water 69 69 97 97
3210 Derwent, Northumbrian Water 70 29 97 55
3211 Rib Thames Water 35 33 97 90
3212 Course United Utilities 52 52 96 96
3213 Shudrick Stream Wessex Water 59 19 96 61
3214 Grammar School Brook Severn Trent Water 27 14 96 58
3215 Grange Pool United Utilities 38 26 96 63
3216 Cranleigh Waters/Littlemead Thames Water 22 12 95 49
3217 River Dun Thames Water 12 1 95 27
3218 West Brook Anglian Water 41 35 95 87
3219 Mill Stream Severn Trent Water 53 9 95 34
3220 Town Beck United Utilities 47 33 95 74
3221 Adur Estuary Southern Water 9 3 95 91
3222 Bowers Brook United Utilities 95 21 94 7
3223 Inner Harbour Anglian Water 121 51 94 60
3224 Brides Beck United Utilities 26 -5 94 44
3225 Moors River Wessex Water 22 17 94 86
3226 Marston Brook Severn Trent Water 23 23 94 94
3227 Greinton Rhyne Wessex Water 26 9 94 47
3228 Navenby Beck Anglian Water 14 9 94 88
3229 Tipton Brook Severn Trent Water 43 11 94 32
3230 Dane In Shaw Brook United Utilities 60 10 94 23
3231 Moors River Via Sws Wessex Water 17 15 94 88
3232 Coombe Valley Str South West Water 18 2 93 89
3233 Scad Beck Solway Est'Y United Utilities 86 -1 93 -12
3234 Hollingworth Clough United Utilities 58 31 93 64
3235 Unnamed Stream To River Medway Southern Water 28 4 93 58
3236 Culvert Of Cwm Gelli Stream Dwr Cymru Welsh Water 80 30 92 45
3237 Haveringsgrove Brook Anglian Water 12 3 92 76
3238 Overflow Via Sewerage System S Dwr Cymru Welsh Water 20 11 92 88
3239 River Great Stour Southern Water 16 14 92 74
3240 Hebble Brook Culverted Yorkshire Water 95 27 92 31
3241 Great Raveley Drain Anglian Water 30 -24 91 -147
3242 Mill Stream Via Sws Wessex Water 48 18 91 49
3243 Tidal River Stour Southern Water 21 14 91 77
3244 Eitha Dwr Cymru Welsh Water 33 8 91 -47
3245 Fleet Drain Yorkshire Water 60 -8 91 12
3246 Paglesham Creek Anglian Water 26 18 91 72
3247 Whiston Brook Via Pub Swr Yorkshire Water 33 4 91 37
3248 Tees, To Northumbrian Water 63 16 90 56
3249 Kenton Brook Thames Water 39 11 90 22
3250 Unknown Dwr Cymru Welsh Water 21 21 90 90
3251 Brow Lane Sewer Yorkshire Water 58 50 90 86
3252 Quorn Brook Severn Trent Water 44 16 90 70
3253 Cross Rhyne Wessex Water 19 19 90 90
3254 Bodelwyddan Drain Dwr Cymru Welsh Water 25 11 90 34
3255 Hennikers Ditch Thames Water 55 24 90 43
3256 Ouse Yorkshire Water 93 -12 90 -887
3257 Gilda Brook United Utilities 122 40 90 -841
3258 Rushcombe Stream Wessex Water 30 4 90 15
3259 Kirkbridge Dike Yorkshire Water 54 44 90 71
3260 Estuary Wessex Water 10 1 89 8
3261 Millholme Beck Northumbrian Water 15 11 89 63
3262 Denton Brook River Tame United Utilities 73 12 89 -9
3263 Nant Wenallt And Then To River Cynon Dwr Cymru Welsh Water 52 23 89 76
3264 Unnamed Drain River Hertford Yorkshire Water 16 10 89 75
3265 Wansbeck Northumbrian Water 46 9 89 42
3266 River Gwash Anglian Water 36 5 89 51
3267 Gategill Beck United Utilities 59 2 89 24
3268 Burntwood Brook Severn Trent Water 38 13 89 53
3269 Cow House Beck Yorkshire Water 23 10 89 39
3270 Laughton Highland Drain Severn Trent Water 19 15 89 84
3271 East Howle Beck Northumbrian Water 40 -2 89 41
3272 Monkton Burn Northumbrian Water 32 6 89 23
3273 Iburndale Beck Yorkshire Water 22 10 88 63
3274 Barrows Brook Southern Water 18 12 88 58
3275 Black Horse Drain Anglian Water 9 0 88 37
3276 Outgang Drain Yorkshire Water 82 40 88 45
3277 River Glanffyddion Dwr Cymru Welsh Water 48 30 88 63
3278 Scorton Beck Yorkshire Water 10 10 88 88
3279 Little Harwood Brook United Utilities 89 21 87 42
3280 Pelaw Wood Beck Northumbrian Water 35 -3 87 28
3281 Bow Brook United Utilities 63 63 87 87
3282 Stan Beck United Utilities 83 -8 87 -233
3283 River Cegidog Dwr Cymru Welsh Water 37 21 87 58
3284 Tinker Sick Yorkshire Water 50 5 87 -15
3285 Serpentine Water United Utilities 67 13 87 33
3286 Gatley Brook Via Sws United Utilities 52 14 87 35
3287 River Eden Dwr Cymru Welsh Water 26 -29 87 -123
3288 Carter Pool United Utilities 44 31 87 69
3289 Un Cross Brook United Utilities 22 9 86 58
3290 Hunsworth Upper Lane Beck Yorkshire Water 33 26 86 77
3291 Sheep Dike Yorkshire Water 22 12 86 51
3292 Un-Named Solway Firth United Utilities 62 11 86 17
3293 Chapel Beck Northumbrian Water 24 6 86 33
3294 Cop Brook United Utilities 77 13 86 -77
3295 Cossington Brook Wessex Water 71 44 86 68
3296 R Avon Via S/Water Sewer Wessex Water 64 19 85 56
3297 River Coran Dwr Cymru Welsh Water 69 28 85 61
3298 Running Furrows Drain Anglian Water 60 17 85 16
3299 Lestraines River South West Water 63 15 85 44
3300 A Littleport Anglian Water 10 10 85 85
3301 Sir Arthur'S Pill South West Water 43 18 85 49
3302 Garmancarr Dike Yorkshire Water 34 9 84 30
3303 Ellerton Brook Severn Trent Water 26 0 84 28
3304 Alan Catchment Dwr Cymru Welsh Water 25 3 84 -13
3305 Bourne Eau + Black Sluice Dyke Anglian Water 19 -3 84 -53
3306 Bolton Beck Yorkshire Water 66 20 84 21
3307 Tory Brook South West Water 75 4 83 21
3308 Hamoaze South West Water 53 35 83 70
3309 Loch Leurbost Scottish Water 26 21 83 65
3310 Cranbrook Via Sws Wessex Water 98 20 83 43
3311 Camel Estuary South West Water 56 17 83 -36
3312 Bartons Lane Ald Southern Water 15 13 83 66
3313 River Ogwr Dwr Cymru Welsh Water 39 18 83 54
3314 Oil Mill Beck Yorkshire Water 61 -2 82 -11
3315 Mill Dam United Utilities 49 12 82 60
3316 Little Beck Northumbrian Water 20 10 82 46
3317 River Sul Thames Water 5 5 82 82
3318 Ceri Brook Dwr Cymru Welsh Water 31 13 82 54
3319 Holmes Tail Goit Yorkshire Water 19 5 82 75
3320 River Gowy United Utilities 57 20 82 45
3321 Stainforth Drain Yorkshire Water 18 14 82 78
3322 Hardshaw Brook United Utilities 58 26 81 50
3323 Handforth Brook Via Sws United Utilities 20 15 81 71
3324 Spring Mill Beck Yorkshire Water 53 -8 81 -39
3325 Prenton Brook United Utilities 21 3 81 17
3326 River Par South West Water 46 34 81 69
3327 Tankerton Bay Southern Water 34 16 81 40
3328 Unnamed Stream Wessex Water 16 16 81 81
3329 Red Brook Dwr Cymru Welsh Water 71 49 81 65
3330 River Y Llan Dwr Cymru Welsh Water 40 23 81 35
3331 Sowy River Wessex Water 13 4 81 41
3332 Portbury Ditch Wessex Water 66 35 81 71
3333 St. Osyth Creek Anglian Water 19 11 81 69
3334 Ash Brook, River Great Ouse Anglian Water 12 6 80 61
3335 River Adur Via Sws Southern Water 18 -1 80 -15
3336 South Burn River Wear Northumbrian Water 30 -4 80 -13
3337 Haigh Beck Yorkshire Water 48 12 80 15
3338 Brislington Brook, Via Sws Wessex Water 36 36 80 80
3339 River Ewenny Dwr Cymru Welsh Water 12 11 80 78
3340 Stromford Brook Via Sws United Utilities 78 14 80 3
3341 Brampton Brook Anglian Water 11 -4 80 36
3342 Relief Channel Anglian Water 44 19 79 54
3343 Kid United Utilities 28 5 79 11
3344 Shell Brook Severn Trent Water 49 21 79 48
3345 Culv Easington Drain Yorkshire Water 53 -4 79 11
3346 Old Patrick Water Scottish Water 50 0 79 6
3347 Plas Crug Ditch Dwr Cymru Welsh Water 8 8 79 79
3348 Franker Brook Severn Trent Water 20 17 78 70
3349 Bessy Brook Via Sws United Utilities 58 24 78 29
3350 Nant Tyrarlwudd Dwr Cymru Welsh Water 80 52 78 56
3351 Three Rivers Severn Trent Water 17 4 78 24
3352 Taunton Brook, Medlock United Utilities 41 8 78 13
3353 River Til Anglian Water 18 4 78 23
3354 Barsby Brook Severn Trent Water 23 -4 78 -123
3355 Bannold Drove Ditch Anglian Water 6 5 78 78
3356 Holywell Brook Yorkshire Water 66 27 78 37
3357 Culverted Wyke Beck Yorkshire Water 51 13 78 32
3358 Culvert To River Tame United Utilities 85 65 78 73
3359 Drainage Channel River Thames Anglian Water 6 3 77 72
3360 Forge Stream Southern Water 26 1 77 36
3361 Team, Northumbrian Water 76 30 77 34
3362 Blackbrook Stream Southern Water 20 3 77 29
3363 Jenny Beck, Rv Croal United Utilities 63 12 77 -25
3364 Swanswell Brook Dwr Cymru Welsh Water 44 22 77 41
3365 Nant Harri Dwr Cymru Welsh Water 43 3 77 4
3366 Whitewall Creek Southern Water 6 6 76 76
3367 Lady Beck Yorkshire Water 48 33 76 67
3368 Smithies Beck Yorkshire Water 18 6 76 71
3369 County Dyke To River Rother Yorkshire Water 30 1 76 0
3370 Gutter Severn Trent Water 10 1 76 48
3371 Hennel Brook, River Darwin United Utilities 11 6 76 55
3372 River Condor United Utilities 17 -3 76 58
3373 Collar Beck United Utilities 26 7 76 43
3374 Mangerton River Wessex Water 19 12 76 66
3375 Calder Yorkshire Water 62 4 76 34
3376 Lance Beck Northumbrian Water 37 1 76 -8
3377 Robertsbridge Petty Sewer Southern Water 16 3 76 13
3378 Hetton Burn Northumbrian Water 56 20 75 44
3379 Ogwr Fach Via A Surface Water Sewer Dwr Cymru Welsh Water 63 13 75 29
3380 Guilders Burn Northumbrian Water 12 10 75 66
3381 Cherry Orchard Yorkshire Water 28 7 75 41
3382 Highfield Drain Dwr Cymru Welsh Water 37 25 75 37
3383 Castle Gresley Brook Severn Trent Water 30 2 75 25
3384 Mickelby Beck Yorkshire Water 33 -3 75 20
3385 Nant Hawen Dwr Cymru Welsh Water 10 6 75 66
3386 To Nant Gwrangon Dwr Cymru Welsh Water 56 29 75 25
3387 Culverted Grindleton Brook United Utilities 43 10 75 35
3388 Tidal Estuary Of River Medway Southern Water 55 53 75 73
3389 An Unnamed Stream Dwr Cymru Welsh Water 25 16 75 52
3390 Common Stell Yorkshire Water 11 8 75 67
3391 Yazor Brook Dwr Cymru Welsh Water 56 -14 75 -45
3392 New Drain Dwr Cymru Welsh Water 18 16 74 64
3393 Rainham Creek Thames Water 16 5 74 -6
3394 Meltham Dike Yorkshire Water 39 25 74 47
3395 River Great Ouse/River Ouzel Anglian Water 8 7 74 74
3396 Ranton Brook Severn Trent Water 8 5 74 62
3397 Doncombe Brook Wessex Water 18 10 74 58
3398 Tidal Pill Of Loughor Estuary Dwr Cymru Welsh Water 16 15 74 71
3399 Lower River Axe Wessex Water 9 8 74 70
3400 Dales Beck Yorkshire Water 40 20 74 67
3401 Luccombe Watercourse Wessex Water 6 5 73 71
3402 Esturail Waters Milford Haven Dwr Cymru Welsh Water 50 0 73 -54
3403 Nun Royd Beck Yorkshire Water 46 0 73 2
3404 Kirkham Stream South West Water 40 29 73 59
3405 River Braint Dwr Cymru Welsh Water 43 24 73 35
3406 Carr Brook, Of Dow Brook United Utilities 18 0 73 44
3407 Barnsley Beack To River Aire Yorkshire Water 54 14 73 20
3408 Kent Channel Morecambe Estuary United Utilities 79 37 73 37
3409 Yowlie Burn Scottish Water 75 40 73 -472
3410 Poolstock Brook United Utilities 36 12 72 42
3411 Bellerby Beck Yorkshire Water 18 -26 72 -119
3412 Dow Brook United Utilities 10 8 72 67
3413 Prescot Brook United Utilities 68 15 72 35
3414 Farley Brook Severn Trent Water 22 -26 72 -751
3415 Treyarnon Stream South West Water 18 9 72 50
3416 Dobeller Drain Yorkshire Water 27 12 72 52
3417 Avon River Estuary South West Water 9 9 72 72
3418 Houghton Burn Northumbrian Water 43 6 72 -12
3419 Agden Brook United Utilities 17 7 71 48
3420 River Amble South West Water 13 3 71 28
3421 Weymouth Harbour Wessex Water 92 35 71 23
3422 Rothley Brook Severn Trent Water 51 10 71 47
3423 Blyth Northumbrian Water 24 -9 71 2
3424 Sapey Brook Severn Trent Water 9 -51 71 -317
3425 Stoke Lyne Brook Anglian Water 7 6 71 71
3426 Leasmires Drain Yorkshire Water 36 6 71 37
3427 Gunness South Drain Severn Trent Water 21 10 71 40
3428 Combe Haven Southern Water 12 -6 71 -1
3429 River Swarbourn Severn Trent Water 15 -3 71 60
3430 Parr Brook United Utilities 44 16 71 25
3431 Brick Yard Rhyne V Sws Wessex Water 9 3 71 25
3432 Philip Burn Northumbrian Water 22 8 70 51
3433 Culvert Of Burlais Brook Dwr Cymru Welsh Water 68 2 70 21
3434 Dyke To River Dearne Yorkshire Water 38 -6 70 16
3435 Clvrt Dodworth Dyke Yorkshire Water 32 9 70 20
3436 Ebbw Fach Dwr Cymru Welsh Water 54 -9 70 10
3437 Nant Cwmgelli Via Surface Water Drains Dwr Cymru Welsh Water 67 22 70 32
3438 Clvrt'D Section Hodge Clough United Utilities 36 12 70 -8
3439 Chorlton Brook Via Sws United Utilities 43 -4 70 19
3440 River Hodder United Utilities 38 -4 70 -299
3441 Billingley Dyke Yorkshire Water 15 6 70 27
3442 Grindle Brook Via Sws South West Water 16 11 70 66
3443 Brookhouse Dyke Severn Trent Water 28 15 70 54
3444 Morton Brook Severn Trent Water 15 3 69 39
3445 Martlesham Creek Anglian Water 11 11 69 69
3446 Pity Me Beck Northumbrian Water 30 2 69 37
3447 Pennycomequick Stream Via Sws South West Water 66 39 69 43
3448 Hazelrigg Beck United Utilities 20 -1 69 -56
3449 Llanerchymor Gutter Dwr Cymru Welsh Water 19 11 69 56
3450 Whitelands Brook Dwr Cymru Welsh Water 8 4 69 6
3451 Culvrt Singing Clough Brook United Utilities 42 -31 69 -92
3452 Mill Brook Via Sws United Utilities 15 7 69 45
3453 Nant Gelli-Nedd Dwr Cymru Welsh Water 30 3 69 -4
3454 Yellow Brook United Utilities 31 10 68 47
3455 Messingham Catchwater Drain Severn Trent Water 13 11 68 66
3456 River Severn Estuary Via Sws Wessex Water 25 12 68 50
3457 Chacombe Brook Thames Water 29 12 68 39
3458 Oxleasedrove Rhyne East Wessex Water 15 7 68 53
3459 River Nadder Via Sws Wessex Water 52 20 68 38
3460 Langham Drain Yorkshire Water 74 63 68 66
3461 Croeserw Brook Dwr Cymru Welsh Water 21 6 68 15
3462 Brinsley Brook Severn Trent Water 14 11 67 59
3463 Holland Brook Anglian Water 37 10 67 43
3464 Taf Estuary Dwr Cymru Welsh Water 59 11 67 9
3465 Un Anwick Soke Anglian Water 5 5 67 67
3466 Dow Beck Culvert United Utilities 66 49 67 60
3467 Bristol Channel Wessex Water 47 20 67 35
3468 Un-Named Watercourse South West Water 35 26 67 61
3469 Tidal River Ribble United Utilities 12 3 67 51
3470 Rhydwaedlyd Brook Dwr Cymru Welsh Water 43 16 67 49
3471 Winniford Wessex Water 15 11 67 57
3472 Test Estuary Southern Water 33 8 66 52
3473 Hickton Brook Severn Trent Water 36 2 66 -23
3474 Stirchell Brook Wessex Water 77 16 66 -5
3475 Black Spool Dwr Cymru Welsh Water 28 2 66 41
3476 Lady Bank Drain Yorkshire Water 16 10 66 40
3477 River Cylflymen Dwr Cymru Welsh Water 48 27 66 53
3478 Whetstone Brook Severn Trent Water 31 10 66 30
3479 River Torne Severn Trent Water 22 -4 66 3
3480 Glaze Brook United Utilities 26 -41 66 -607
3481 Redcar Beck Northumbrian Water 37 13 66 38
3482 Colling Lane Brook, Pen Leach United Utilities 16 7 66 38
3483 Tach Brook Severn Trent Water 19 -4 66 33
3484 Fareham Creek/Portsmouth Hbr Southern Water 45 11 66 28
3485 Unnamed Stream To Durlston Bay Wessex Water 43 10 66 42
3486 River Bradley Dwr Cymru Welsh Water 27 25 66 65
3487 Horsebridge Dyke, Main United Utilities 21 -13 66 64
3488 Nidd Yorkshire Water 24 7 66 20
3489 Clippingham Stream Southern Water 12 10 65 52
3490 Frater Lake, Portsmouth Hbr Southern Water 7 5 65 57
3491 Pembroke River / Milford Haven Dwr Cymru Welsh Water 21 -9 65 -95
3492 Falmouth Bay/ Bickland Wat South West Water 35 15 65 9
3493 Grimesmoor Dyke Severn Trent Water 19 -18 65 28
3494 Frickley Beck Yorkshire Water 11 1 65 16
3495 Bobs Brook Severn Trent Water 17 -3 65 55
3496 Nicky Nack Beck Northumbrian Water 15 -1 65 50
3497 River Dorn Thames Water 17 13 65 60
3498 River Ystrad Dwr Cymru Welsh Water 36 1 65 -115
3499 Un-Named Stream Dwr Cymru Welsh Water 92 45 65 37
3500 Unnamed Wc To Scotchells Brook Southern Water 21 4 64 44
3501 Bramble Brook Severn Trent Water 7 6 64 63
3502 Warney Brook Severn Trent Water 55 -1 64 47
3503 Reepham Beck Barling Eau Rive Anglian Water 7 -29 64 -267
3504 Sleekburn Northumbrian Water 32 0 64 -6
3505 Holes Bay Via Sws Wessex Water 11 5 64 50
3506 Shotton Beck Northumbrian Water 41 12 64 31
3507 Jumwell Beck Yorkshire Water 21 11 63 17
3508 Tiddy Brook South West Water 34 14 63 16
3509 Kingsforth Brook Severn Trent Water 24 2 63 23
3510 Golden Brook Severn Trent Water 19 16 63 50
3511 Carr Gate Beck Yorkshire Water 38 15 63 30
3512 Rake Beck Yorkshire Water 30 7 63 12
3513 Sandyford Brook United Utilities 8 8 63 63
3514 Caldy Brook River Dee United Utilities 7 -45 63 -948
3515 Lodge Beck Yorkshire Water 31 4 63 19
3516 Nant Bran Dwr Cymru Welsh Water 11 -16 63 -19
3517 Unnamed Stream Southern Water 17 10 62 45
3518 Germany Beck Yorkshire Water 75 22 62 -20
3519 River Tone Via Sws Wessex Water 8 -2 62 56
3520 Unknown Severn Trent Water 39 37 62 38
3521 Key Brook Wessex Water 10 -4 62 -19
3522 Woodnook Water United Utilities 47 4 62 44
3523 Bydemill Ditch Thames Water 21 19 62 54
3524 Toll House Stream Thames Water 13 6 62 31
3525 Bagthorpe Brook Severn Trent Water 33 33 61 61
3526 Dockerel Brook Anglian Water 19 15 61 54
3527 Mere Brook Severn Trent Water 15 6 61 50
3528 Portbury Ditch, Wessex Water 12 12 61 61
3529 Ash Brook United Utilities 54 42 61 55
3530 Tidal River Blyth Anglian Water 23 10 61 34
3531 Lades Pool Estuarine Waters United Utilities 6 5 61 60
3532 Nant Dyfaty Dwr Cymru Welsh Water 19 17 61 57
3533 River Corve Severn Trent Water 7 4 60 29
3534 Unnamed Of River Test Southern Water 16 7 60 32
3535 Emral Brook Dwr Cymru Welsh Water 22 12 60 54
3536 Of Balderton Brook Dwr Cymru Welsh Water 22 12 60 34
3537 River enrick Scottish Water 65 -22 60 -21
3538 North Burn Scottish Water 37 -5 60 0
3539 Flothers Burn Northumbrian Water 37 -32 60 -10
3540 Haughley Water Course River Gi Anglian Water 36 1 60 -2
3541 Hellaby Brook Severn Trent Water 28 -6 60 15
3542 Widemarsh Brook Dwr Cymru Welsh Water 6 4 60 60
3543 Tarty Burn Scottish Water 5 1 60 23
3544 Aller Brook Via Sw Sewer South West Water 64 32 60 47
3545 Local Ditch Severn Trent Water 25 24 60 60
3546 Tidal River Caen South West Water 46 16 60 46
3547 River Wampool Estuary United Utilities 39 -8 60 -271
3548 Medina Estuary Southern Water 29 4 60 -43
3549 Westford Stream Wessex Water 13 9 60 56
3550 Alun Dwr Cymru Welsh Water 14 5 60 9
3551 Holes Bay Estuarine Wessex Water 14 0 60 36
3552 Ludgvan Stream South West Water 29 28 60 58
3553 Main Idb River Yare Anglian Water 9 7 60 54
3554 Hammock Brook Severn Trent Water 21 16 59 51
3555 Todwick Beck Yorkshire Water 19 8 59 25
3556 Foulsham Beck River Wensum Anglian Water 8 -7 59 50
3557 Crossens Pool United Utilities 13 -2 59 24
3558 Surface Water Sewer Draining To Gors-Fawr Brook Dwr Cymru Welsh Water 52 41 59 52
3559 West Fleet Wessex Water 28 14 59 26
3560 Swanback Mill Brook United Utilities 35 35 59 59
3561 Trub Brook River Irk United Utilities 61 37 59 -28
3562 Culverted Section Of Gaywood Anglian Water 56 56 59 59
3563 Hascombe Stream Thames Water 16 0 59 16
3564 Hook Nortonbrook Thames Water 13 6 59 46
3565 Lady Pool United Utilities 15 -48 59 -6
3566 Wilsden Beck Yorkshire Water 34 0 59 20
3567 Bitham Brook Wessex Water 19 7 58 28
3568 Hawke Brook Yorkshire Water 37 6 58 16
3569 Penny Dike Yorkshire Water 34 -10 58 -6
3570 Dodham Brook Wessex Water 59 18 58 22
3571 Rvr Ribble United Utilities 31 12 58 31
3572 Ashby Brook Thames Water 18 4 58 25
3573 R Lark Anglian Water 5 5 58 58
3574 Park Brook Severn Trent Water 36 27 58 53
3575 Tory Brook Via Sws South West Water 53 -2 58 13
3576 Anston Brook Severn Trent Water 23 7 58 37
3577 Paddock Beck Yorkshire Water 20 2 58 26
3578 Stromford Brk Rvr Mersey United Utilities 42 -6 57 10
3579 Canley Brook Severn Trent Water 27 7 57 29
3580 To River Alver Southern Water 7 4 57 41
3581 Hale Bourne Thames Water 12 6 57 22
3582 Main Drain Yorkshire Water 15 8 57 37
3583 Terry Gutter Yorkshire Water 26 -9 57 -12
3584 Waskerley Beck Northumbrian Water 40 6 57 16
3585 River Sid Via Sws South West Water 31 9 57 42
3586 Aln Northumbrian Water 30 -12 57 24
3587 Fordland Brook South West Water 35 19 57 40
3588 Cranny Brook South West Water 9 6 57 43
3589 Beaulieu River Estuary Southern Water 8 7 57 52
3590 Unnamed Powdermill Stream Southern Water 25 18 56 29
3591 Faversham Creek Southern Water 77 -26 56 -60
3592 Sutton Brook Sankey Brook United Utilities 50 -3 56 0
3593 Fores Drain Severn Trent Water 20 10 56 17
3594 Swineshaw Brook Rvr Tame United Utilities 56 12 56 3
3595 River Mas Culverted Yorkshire Water 44 10 56 13
3596 Back Brook Dwr Cymru Welsh Water 35 10 56 28
3597 Grimescar Dike Yorkshire Water 37 18 56 43
3598 Carr Brook Severn Trent Water 56 32 56 31
3599 Rowletch Burn 9River Team Northumbrian Water 11 3 56 19
3600 Thame Thames Water 11 11 56 56
3601 To River Flit Anglian Water 22 22 56 56
3602 Ledwyche Brook Severn Trent Water 21 1 55 -54
3603 Catchwater Drain Cottenham Lod Anglian Water 4 4 55 55
3604 Byde Mill Brook Wessex Water 12 7 55 44
3605 Lonco Brook Severn Trent Water 38 -35 55 -272
3606 New Reed Brook United Utilities 60 12 55 28
3607 Wyre United Utilities 50 31 55 23
3608 Nearby Dyke Yorkshire Water 24 19 55 53
3609 Adderlane Gill Park Burn Northumbrian Water 17 10 55 44
3610 River Mersey Estuarine Waters United Utilities 71 39 55 27
3611 Un-Named Of Byr Brook Dwr Cymru Welsh Water 18 8 55 45
3612 Bow Burn Northumbrian Water 38 -3 54 17
3613 Liswerry Pill Reen Dwr Cymru Welsh Water 79 33 54 34
3614 Rhyl Cut Dwr Cymru Welsh Water 20 -50 54 29
3615 Unmd Drain Riv. Humber Anglian Water 29 6 54 29
3616 Backgill Burn Northumbrian Water 31 14 54 30
3617 Captains Clough United Utilities 28 21 54 44
3618 Leak Gride Drain Anglian Water 14 8 54 51
3619 Slack Brook Via Suface Water S United Utilities 36 9 54 11
3620 Swillbrook Culvert United Utilities 80 -3 54 19
3621 Healam Beck Yorkshire Water 21 13 54 43
3622 River Lwyd Via Culvert And Unnamed Watercourse Dwr Cymru Welsh Water 39 15 54 27
3623 Askham Beck United Utilities 23 13 54 50
3624 Ince Brook United Utilities 10 10 54 54
3625 Sherford Stream Wessex Water 15 6 54 43
3626 Tolvaddon Stream South West Water 41 9 54 25
3627 River Medlock Via Sws United Utilities 60 -17 54 -86
3628 Hagg Bush Dike Yorkshire Water 32 -18 54 -10
3629 Ray/Ditch Thames Water 9 8 53 50
3630 Cefni Estuary Dwr Cymru Welsh Water 52 10 53 28
3631 Rakes Dyke Yorkshire Water 20 10 53 42
3632 Stoke Brook Wessex Water 42 7 53 35
3633 Trough Beck Yorkshire Water 35 16 53 33
3634 Trent United Utilities 64 7 53 20
3635 River Stour Southern Water 12 4 53 23
3636 Clvrt Of Captains Clough Brook United Utilities 24 5 53 -92
3637 River Synderford South West Water 19 10 53 39
3638 Nunroyd Beck Yorkshire Water 28 2 52 9
3639 Knowle Stream South West Water 28 18 52 37
3640 Coldwell Burn/Murton Dene Northumbrian Water 17 9 52 28
3641 Collingham Beck Yorkshire Water 17 4 52 4
3642 Barton Brook Severn Trent Water 14 9 52 49
3643 West Sedgemoor M Drain Wessex Water 6 3 52 47
3644 R Cadoxton Dwr Cymru Welsh Water 14 8 52 48
3645 Reepham Beck Anglian Water 3 2 52 51
3646 River Tillery Dwr Cymru Welsh Water 49 3 52 17
3647 Plock Wood Stream United Utilities 43 16 52 24
3648 Chorlton Brook United Utilities 43 5 52 7
3649 Sandy Brook United Utilities 48 25 52 38
3650 Halls Beck United Utilities 37 -8 52 14
3651 Unnamed Watercourse Wessex Water 8 8 52 52
3652 Great Ouse Anglian Water 31 13 51 37
3653 River Allen Via Sws South West Water 4 -3 51 -58
3654 Connington Brook Anglian Water 4 3 51 49
3655 Dove Yorkshire Water 39 11 51 17
3656 Howe Beck Yorkshire Water 7 7 51 51
3657 River Cegin Dwr Cymru Welsh Water 28 -63 51 -91
3658 Henlow Brook Anglian Water 7 5 51 23
3659 Chester Burn, Northumbrian Water 22 8 51 41
3660 Duddo Burn, Northumbrian Water 30 14 51 35
3661 Hortonwood Open Channel Severn Trent Water 35 12 51 21
3662 Glenridding Beck United Utilities 36 -36 51 -28
3663 Greetwell Beck Anglian Water 6 0 51 46
3664 Nant Gwyddon Via Surface Water Sewer And A Culvert Dwr Cymru Welsh Water 47 17 51 36
3665 Various - See Outlets Severn Trent Water 7 2 50 45
3666 Colwell Bay Southern Water 13 13 50 50
3667 Singleton Brook United Utilities 61 -20 50 -585
3668 Sandycroft Drain Dwr Cymru Welsh Water 12 3 50 -4
3669 Torrington Beck Anglian Water 5 5 50 50
3670 Little Hawden Stream Southern Water 12 3 50 -14
3671 Walling Wells Brook Severn Trent Water 16 10 50 31
3672 Brookstray Severn Trent Water 33 30 50 49
3673 Sarah Beck United Utilities 50 50 50 50
3674 Alderbourne Thames Water 18 18 50 50
3675 Coldwell Burn Northumbrian Water 32 15 50 23
3676 Prestwich Clough Via Culvert United Utilities 61 61 50 50
3677 Black Lane Brook United Utilities 17 4 50 21
3678 Overflow Brook Thames Water 20 20 50 50
3679 Birk Sike United Utilities 38 8 50 21
3680 River Calder Via Pumped Outlet Yorkshire Water 21 4 50 2
3681 Tanyard Brook United Utilities 41 8 49 -12
3682 Common Watercourse No 7 Anglian Water 28 -11 49 -109
3683 Dabholme Beck Northumbrian Water 30 9 49 34
3684 River Corrwg Dwr Cymru Welsh Water 25 25 49 49
3685 River Hwch Dwr Cymru Welsh Water 38 1 49 4
3686 To Beck Yorkshire Water 6 3 49 46
3687 Blackclose Burn Northumbrian Water 13 1 49 28
3688 Church Burn Northumbrian Water 51 10 49 14
3689 Ibbetsons' Sike Northumbrian Water 33 -30 49 -72
3690 River Douglas Via Sws United Utilities 94 32 49 29
3691 Syke Beck Yorkshire Water 24 13 49 16
3692 River Abby South West Water 23 19 49 34
3693 R Cynon - Conf Aman R To Conf R Taff Dwr Cymru Welsh Water 32 -134 49 -2,563
3694 Spital Brook Culverted Yorkshire Water 37 -19 49 -95
3695 Culverted River Irk United Utilities 57 21 48 27
3696 Hey Brook River Roch United Utilities 50 10 48 13
3697 Carden Brook Dwr Cymru Welsh Water 31 8 48 33
3698 Oakley Bottom Dike Yorkshire Water 43 8 48 4
3699 Coldwell Burn, Northumbrian Water 24 2 48 16
3700 Fenton Lode Anglian Water 31 11 48 16
3701 Old Mill Stream Yorkshire Water 18 4 48 -9
3702 Unknown River Nene Anglian Water 8 8 48 48
3703 Clough Brook United Utilities 46 41 48 44
3704 Jenny Beck United Utilities 38 3 48 22
3705 Of Morlas Brook Dwr Cymru Welsh Water 15 9 48 43
3706 River Devon Scottish Water 43 4 47 0
3707 Short Wood Dike Yorkshire Water 26 -7 47 -11
3708 River Yeo Via Sws Wessex Water 49 -8 47 27
3709 West Dyke Anglian Water 67 15 47 37
3710 Olchon Brook Dwr Cymru Welsh Water 7 -3 47 -22
3711 Shire Brook In Culvert Yorkshire Water 12 1 47 39
3712 Ulwell Stream Wessex Water 18 6 47 38
3713 Unnamed Of Mill Brook United Utilities 13 10 47 44
3714 Oxfield Beck Yorkshire Water 9 3 47 30
3715 Pîl Dafen Dwr Cymru Welsh Water 28 1 47 15
3716 Caddle Beck Anglian Water 46 9 46 -90
3717 Unnamed Of River Wear Northumbrian Water 4 2 46 40
3718 Alphin Brook South West Water 49 24 46 36
3719 Par River South West Water 59 17 46 22
3720 Albrighton Brook Severn Trent Water 25 -32 46 -220
3721 Gwersyllt Fishpond Dwr Cymru Welsh Water 19 11 46 40
3722 South Hall Creek Anglian Water 4 3 46 46
3723 Millwood Brook - Creswell Arm Severn Trent Water 23 -11 46 -23
3724 Weymouth Harbour Via Sws Wessex Water 58 17 46 22
3725 River Colhuw Dwr Cymru Welsh Water 12 10 46 43
3726 Suddon Brook United Utilities 31 -16 46 -20
3727 Crow Brook Severn Trent Water 28 3 46 2
3728 River Swale Estuary Southern Water 27 6 46 11
3729 One Hundred Foot Dra Anglian Water 5 1 46 14
3730 Washinghouse Brook Dwr Cymru Welsh Water 21 17 46 41
3731 Wepre Brook Dwr Cymru Welsh Water 38 19 46 35
3732 River Frome Via Sws Wessex Water 85 26 46 19
3733 Folly Brook United Utilities 84 69 46 40
3734 Burrill Beck Yorkshire Water 31 16 46 28
3735 New Dike Yorkshire Water 15 9 46 37
3736 Lyde Brook Severn Trent Water 15 -2 45 24
3737 Marsh Brook United Utilities 46 8 45 22
3738 Unnamed Sm To Scotchells Brook Southern Water 23 21 45 44
3739 Crowle Brook Severn Trent Water 8 8 45 45
3740 Tan Lan Drains Dwr Cymru Welsh Water 4 0 45 22
3741 Combs Reservoir United Utilities 30 8 45 8
3742 Douglas Estuary United Utilities 10 4 45 21
3743 River Tees Saline Estuary Northumbrian Water 32 20 45 36
3744 Wortley Beck Culverted Yorkshire Water 39 10 45 15
3745 Culverted River Kyle Yorkshire Water 39 23 45 36
3746 Nant-Y-Wedal Dwr Cymru Welsh Water 46 17 45 25
3747 Brislington Brook Via Sws Wessex Water 48 15 45 13
3748 Rivr Sheppey Wessex Water 10 3 45 28
3749 Bicton Brook Severn Trent Water 5 2 45 33
3750 Cobbler'S Brook Thames Water 9 -3 45 -16
3751 River Dore Dwr Cymru Welsh Water 10 -2 45 22
3752 To Crymlyn Brook Via A Surface Water Culvert Dwr Cymru Welsh Water 25 -32 45 -138
3753 River Hun Anglian Water 36 25 44 35
3754 Brook Dyke Yorkshire Water 17 7 44 32
3755 Carrmyers Burn Northumbrian Water 16 12 44 20
3756 River Wyre Dwr Cymru Welsh Water 26 11 44 26
3757 Unnamed Of Grass Dyke United Utilities 7 6 44 43
3758 Tinker Brook United Utilities 37 -9 44 -486
3759 Kyme Eau Anglian Water 4 2 44 28
3760 Dudgrove Stream Thames Water 8 8 44 44
3761 Goch Bach Dwr Cymru Welsh Water 26 5 44 3
3762 Rowletch Burn Northumbrian Water 28 11 44 16
3763 Haven Anglian Water 75 53 43 39
3764 Garden City Drain Dwr Cymru Welsh Water 14 10 43 42
3765 Hunsworth Beck Yorkshire Water 17 7 43 5
3766 Huntspill River Wessex Water 7 3 43 25
3767 Sailors Stream Southern Water 4 4 43 43
3768 Culverted Cunningham Brk United Utilities 43 9 43 11
3769 Houndhill Brook Severn Trent Water 14 -20 43 -431
3770 Maud Foster Drain Anglian Water 26 -9 43 22
3771 River Glaven Anglian Water 10 2 43 24
3772 Tetney Haven Anglian Water 37 9 43 23
3773 Frognal Drain Southern Water 14 14 43 43
3774 Derwent, River Northumbrian Water 42 7 43 -8
3775 Pymmes Brook Thames Water 23 10 43 21
3776 Stream River Great Ouse Anglian Water 21 5 43 6
3777 River Birkett United Utilities 23 -21 43 -252
3778 Rede Northumbrian Water 6 3 43 26
3779 Kilby Brook Severn Trent Water 7 6 42 41
3780 Marsh House Ditch Anglian Water 12 5 42 31
3781 King Sedgemoors Drain Wessex Water 11 7 42 36
3782 Birker Goit Yorkshire Water 22 5 42 15
3783 Blackwater River Anglian Water 22 11 42 30
3784 Uunamed Lysdon Burn Northumbrian Water 19 11 42 35
3785 River Onny Severn Trent Water 25 -1 42 19
3786 Clifton Brook Thames Water 13 10 42 31
3787 River Pant Anglian Water 6 5 42 42
3788 Sibson Brook Severn Trent Water 15 9 42 35
3789 Little Lawford Brook Severn Trent Water 28 -204 42 -451
3790 Hill Hall Dyke Anglian Water 4 4 42 42
3791 Lymington River Estuary Southern Water 10 8 42 38
3792 Howley Beck Yorkshire Water 6 3 42 17
3793 River Avon [Black Rocks] Sws Wessex Water 39 17 42 24
3794 Running Furrows Drain River Wi Anglian Water 5 5 42 42
3795 Tidal River Neath Dwr Cymru Welsh Water 38 6 42 10
3796 Frater Lake Southern Water 12 10 41 37
3797 Waddens Brook Severn Trent Water 6 3 41 39
3798 Harden Beck Yorkshire Water 22 7 41 10
3799 White Cliffe Beck Northumbrian Water 12 4 41 -6
3800 Bullmead Ditch Wessex Water 17 -1 41 28
3801 Burtree Dam Yorkshire Water 14 7 41 29
3802 Penny'S Brook River Blackwater Anglian Water 10 10 41 41
3803 River Team Estuarine Waters Northumbrian Water 24 -1 41 -14
3804 Stream Dis To Lyme Bay South West Water 47 23 41 19
3805 Bowstead Brook River Blackwate Anglian Water 18 17 41 40
3806 Glanfyddian Stream Dwr Cymru Welsh Water 11 4 41 37
3807 Dodham Brook Via Sws Wessex Water 33 26 41 39
3808 Southway Stream South West Water 33 27 41 31
3809 Cottingley Beck Yorkshire Water 51 -11 41 -68
3810 Stony Beck United Utilities 24 -2 41 -6
3811 Burn of Cauldcots Scottish Water 16 8 41 13
3812 Campton Brook, R Ivel Anglian Water 5 5 41 41
3813 Lambwath Stream Yorkshire Water 20 6 41 26
3814 Rive Ditch Thames Water 8 8 40 40
3815 Sutton Brook Via Sws United Utilities 17 8 40 30
3816 Cornwell Brook Thames Water 18 18 40 40
3817 Unnamed Ely Ou Anglian Water 36 3 40 20
3818 Huddersfield Brd Canal Yorkshire Water 39 9 40 24
3819 Arclid Brook United Utilities 44 44 40 40
3820 Rudhall Brook Dwr Cymru Welsh Water 63 22 40 20
3821 Sherburn Beck Yorkshire Water 7 -3 40 -52
3822 Rotherwick Brook Thames Water 6 0 40 22
3823 Waterside Wessex Water 60 -41 40 -172
3824 Fowlmere Stream Anglian Water 34 19 40 23
3825 River Cynon River Dwr Cymru Welsh Water 42 -8 40 -21
3826 Roseworthy Stream South West Water 22 -1 40 1
3827 Black Dike, Keer Estuary United Utilities 21 9 40 27
3828 Lady Beck Culverted Yorkshire Water 28 17 40 35
3829 Cefni Dwr Cymru Welsh Water 44 8 40 17
3830 Whitehall Brook Via Sws United Utilities 30 -26 39 -223
3831 Fairy Beck Culvert United Utilities 25 25 39 39
3832 Radipole Lake Wessex Water 51 14 39 13
3833 Longton Brook Severn Trent Water 37 -66 39 2
3834 Holmes Goit Yorkshire Water 27 5 39 12
3835 Bar Brook Severn Trent Water 4 2 39 14
3836 Longbrook Stream South West Water 28 -2 39 8
3837 Uphill Great Rhne Wessex Water 9 4 39 29
3838 Whit Brook United Utilities 56 -4 39 -13
3839 River Tame Northumbrian Water 5 4 39 36
3840 Throstle Carr Beck Yorkshire Water 9 8 39 38
3841 Culverted River Roch United Utilities 47 11 39 6
3842 Eastcote Brook Severn Trent Water 20 -13 38 -326
3843 Cotton Brook Severn Trent Water 42 14 38 -22
3844 Alltami Brook Dwr Cymru Welsh Water 8 5 38 36
3845 Bowsden Northumbrian Water 37 37 38 38
3846 Hart Beck Northumbrian Water 27 12 38 28
3847 Quarlton Brook United Utilities 20 3 38 15
3848 Walverden Wtr Pendle Wtr United Utilities 13 -16 38 10
3849 Saundersfoot Stre Dwr Cymru Welsh Water 20 20 38 38
3850 Mill Beck United Utilities 6 -17 38 4
3851 Kings Sutton Stream Thames Water 16 8 38 24
3852 Nether Ends Beck Yorkshire Water 18 12 38 32
3853 Rive Don Yorkshire Water 12 2 38 6
3854 Thetford Catchwater Anglian Water 3 -11 38 -179
3855 Tri Of River Roden Severn Trent Water 15 7 38 33
3856 Langrigg Beck United Utilities 15 5 38 19
3857 Hinton Meads Brook Wessex Water 30 9 38 28
3858 Shawfords Lake Southern Water 8 6 38 35
3859 Buckland Brook Thames Water 4 4 38 38
3860 River Monnow Dwr Cymru Welsh Water 25 11 38 29
3861 Wath Beck Yorkshire Water 37 -19 38 -3
3862 Oxton Dumble Severn Trent Water 16 15 37 37
3863 Womersley Beck Yorkshire Water 22 -17 37 -228
3864 Silsden Beck Yorkshire Water 25 17 37 33
3865 River Lambourn Thames Water 5 3 37 31
3866 River Skell Via A Public Sewer Yorkshire Water 67 -10 37 13
3867 Blunts Stream South West Water 31 22 37 34
3868 Fowle Brook Via Sws United Utilities 28 4 37 15
3869 Marsiandwr Dwr Cymru Welsh Water 11 7 37 32
3870 Seamer Stell Northumbrian Water 22 22 37 37
3871 Eller Gill United Utilities 38 6 37 0
3872 Newbrough Burn Northumbrian Water 28 12 37 21
3873 Goat'S Beck River Browney Northumbrian Water 18 -4 37 16
3874 Knuston Brook River Nene Anglian Water 4 1 37 19
3875 Plumpton Clough United Utilities 73 8 37 -70
3876 Balne Beck Yorkshire Water 11 1 37 15
3877 Grimethorpe Dyke Yorkshire Water 24 24 37 37
3878 Horton Beck Yorkshire Water 41 -13 37 -99
3879 Tongue Burn Northumbrian Water 32 27 37 33
3880 Whaddon Brook To River Rhee Anglian Water 5 4 37 36
3881 Greasby Brook United Utilities 24 -3 36 29
3882 River Wey Wessex Water 16 3 36 12
3883 Barton Haven Anglian Water 53 19 36 17
3884 Beddington Effluent Carrier/Wa Thames Water 7 0 36 14
3885 Siston Brook Via Sws Wessex Water 56 23 36 0
3886 Houston Burn Scottish Water 16 -5 36 10
3887 Pont, Northumbrian Water 7 5 36 36
3888 Ridings Brook Severn Trent Water 61 15 36 13
3889 Workhouse Lake Southern Water 9 9 36 36
3890 Gissage South West Water 51 51 36 36
3891 Harrow Brook Severn Trent Water 25 -2 36 9
3892 Hartburn Beck Northumbrian Water 45 14 36 12
3893 Oulton Beck Yorkshire Water 16 6 36 10
3894 East Webburn River South West Water 12 11 36 35
3895 Unknown North Delph Anglian Water 6 -2 36 16
3896 To Ingoldmells Main Drain Anglian Water 6 6 35 35
3897 Moss Brook Via Sws United Utilities 13 8 35 33
3898 River Wharfe Via Public Sewer Yorkshire Water 32 6 35 8
3899 Bleakley Dyke Yorkshire Water 5 1 35 17
3900 Ban Brook Severn Trent Water 20 12 35 24
3901 Hatchford Brook Severn Trent Water 17 11 35 31
3902 Claggans Burn Scottish Water 26 2 35 8
3903 Pigeon Brook Yorkshire Water 19 5 35 16
3904 Valley Burn, River Wear Northumbrian Water 16 -3 35 10
3905 Goat Northumbrian Water 20 -1 35 6
3906 Highway - Colwinston Brook Dwr Cymru Welsh Water 7 6 35 34
3907 River Ribble Yorkshire Water 12 1 35 3
3908 Sun Beck Yorkshire Water 34 6 35 13
3909 Orwell Estuary Anglian Water 21 8 35 30
3910 Shottery Brook Severn Trent Water 51 -6 35 -20
3911 Unnamed Ditch,Trenance Lake South West Water 62 14 35 10
3912 Copse Brook Culvert United Utilities 47 38 34 17
3913 Blackstone Burn River Derwent Northumbrian Water 23 6 34 17
3914 Dyke Skellingthorpe Main Anglian Water 4 4 34 34
3915 Rush Brook Anglian Water 4 3 34 34
3916 Wash Brook Severn Trent Water 19 -12 34 -11
3917 Pudsey Beck Yorkshire Water 30 30 34 34
3918 Sprincle Pill,Daucleddau Dwr Cymru Welsh Water 9 1 34 25
3919 Upgang Beck Yorkshire Water 25 10 34 7
3920 Ipstones Brook Severn Trent Water 22 15 34 29
3921 Sws-New Road Brook-Stoke Brook Wessex Water 25 25 34 34
3922 Straw Brook Anglian Water 5 5 34 34
3923 Newlands Brook Severn Trent Water 15 3 34 4
3924 Bretton Drain Dwr Cymru Welsh Water 3 3 34 34
3925 Kyle Yorkshire Water 11 3 34 22
3926 Rhymney River Dwr Cymru Welsh Water 9 6 34 26
3927 Bilton Beck Yorkshire Water 26 -5 33 -18
3928 Castle Pond Dwr Cymru Welsh Water 26 9 33 23
3929 Green Letch Northumbrian Water 28 7 33 12
3930 Dean Clough River Calder United Utilities 24 11 33 29
3931 Sindsley Brook Via Sws United Utilities 62 9 33 6
3932 Sandy River South West Water 16 16 33 33
3933 Unnamed Ditch Wessex Water 26 26 33 33
3934 Worthen Brook Severn Trent Water 4 4 33 33
3935 Clockhouse Stream Wessex Water 16 15 33 33
3936 Littleport Anglian Water 6 6 33 33
3937 Sunnyside Stream Southern Water 9 3 33 2
3938 Millers Brook Via Sws United Utilities 44 8 33 9
3939 Stanney Brook United Utilities 59 13 33 5
3940 Culverted Longwood Brook Yorkshire Water 25 6 33 9
3941 Northstreet Moor Rhyne Via Sws Wessex Water 32 8 33 24
3942 Kinmel Bay Drain Dwr Cymru Welsh Water 3 2 33 33
3943 Wingham River Southern Water 5 1 33 17
3944 Gypsey Race Yorkshire Water 52 25 33 24
3945 Hood Brook Severn Trent Water 10 3 32 18
3946 Well Sike Yorkshire Water 75 -114 32 4
3947 Salteye Brook Via Sws United Utilities 61 -3 32 -10
3948 Holme Brook / River Hipper Yorkshire Water 21 2 32 14
3949 Un River Arun Southern Water 6 3 32 12
3950 Tarn Beck Northumbrian Water 11 3 32 -9
3951 Spital Beck Yorkshire Water 27 -8 32 -55
3952 Henmore/Scow Brook Severn Trent Water 23 -7 32 -57
3953 Greasby Brook Arrow Brook United Utilities 25 9 32 27
3954 Jackson Bridge Dyke Yorkshire Water 16 8 32 25
3955 Coxbridge Brook Wessex Water 5 1 32 8
3956 Bugbrooke Brook Anglian Water 25 13 32 23
3957 Culverted Scour Gutter Yorkshire Water 30 16 32 22
3958 Stour Brook River Stour Anglian Water 8 3 31 3
3959 Pond Rivtawd Via Sws United Utilities 34 13 31 12
3960 West Meadow Brook Severn Trent Water 14 11 31 29
3961 Rillington Beck Yorkshire Water 25 7 31 19
3962 Prestwich Clough Brook United Utilities 23 12 31 28
3963 Royals Brook United Utilities 5 2 31 28
3964 Norbeck United Utilities 60 3 31 -8
3965 Choke Churl Beck Yorkshire Water 22 -123 31 -37
3966 Millbrook Lake South West Water 6 3 31 25
3967 Savick Brook Via Sws United Utilities 9 1 31 26
3968 Not Defined Severn Trent Water 10 -4 31 6
3969 Pickhill Beck Yorkshire Water 17 7 31 26
3970 Skegger Beck Anglian Water 24 13 31 25
3971 Skerne Northumbrian Water 37 7 31 -9
3972 Winterton Homes Dr Anglian Water 4 4 31 31
3973 Bodmin Town Leat South West Water 38 10 31 15
3974 River Derwent Estuary United Utilities 29 -59 31 -11
3975 Porth Joke South West Water 9 3 31 28
3976 Bristol Avon Via Sws Estuarine Wessex Water 43 14 31 21
3977 Unnamed River Tyne Northumbrian Water 19 -5 31 0
3978 Adjacent Ditch Dwr Cymru Welsh Water 14 1 30 -29
3979 Langton Beck, Tees Catch Northumbrian Water 34 20 30 12
3980 Matley Bog Stream Southern Water 8 -1 30 13
3981 Saffron Brook Severn Trent Water 35 12 30 21
3982 Dawlish Water South West Water 79 20 30 14
3983 Clay Dike Severn Trent Water 8 -43 30 -83
3984 Gosnalls Brook River Stour Anglian Water 7 6 30 30
3985 Culv Leeds/Lpool Canal Yorkshire Water 22 -3 30 1
3986 Estuarial Waters Of Llantwit Stream Dwr Cymru Welsh Water 25 14 30 20
3987 Peover Eye United Utilities 27 -24 30 3
3988 R Chelmer Anglian Water 9 5 30 13
3989 River Worth Via Knowle Pk Spng Yorkshire Water 32 1 30 1
3990 Day Brook Severn Trent Water 36 11 30 10
3991 An River Llan Dwr Cymru Welsh Water 42 5 30 -287
3992 Hey Beck Yorkshire Water 15 4 30 7
3993 Blackshaw Brook United Utilities 23 1 30 11
3994 Aberach Stream Dwr Cymru Welsh Water 36 13 30 12
3995 Clvrt Section Of River Mersey United Utilities 29 -6 30 -13
3996 Mardyke Thames Estuary Anglian Water 10 3 30 13
3997 Pentre Ffwrndan Drain Dwr Cymru Welsh Water 5 -4 30 -23
3998 Decoy Brook Thames Water 26 5 29 -10
3999 Brickhill Brook River Ouzel Anglian Water 13 0 29 -159
4000 Mincinglake Stream South West Water 16 10 29 22
4001 River Avon Via Sw Sewer Wessex Water 22 14 29 25
4002 River Hubberston Pill Dwr Cymru Welsh Water 16 14 29 28
4003 Urpeth Burn Northumbrian Water 30 -13 29 -44
4004 Werrington Brook Anglian Water 6 5 29 29
4005 Clapton Stream South West Water 11 6 29 -3
4006 Stock Brook Via Sws United Utilities 50 -13 29 -620
4007 Harrow Beck Via Sws United Utilities 53 -11 29 -14
4008 Dennington Beck Yorkshire Water 12 -19 29 -54
4009 New Inn Brook Dwr Cymru Welsh Water 15 -5 29 -27
4010 River Foulness Or Shipton Beck Yorkshire Water 7 4 29 23
4011 Stonehill Drain Yorkshire Water 22 4 29 6
4012 Beaulieu River Via A Stream Southern Water 4 -1 29 18
4013 Warren Hill Brook Severn Trent Water 23 -2 29 11
4014 Combs Beck To Rattlesden River Anglian Water 2 2 29 29
4015 Kebbs Brook, Riv Darwen United Utilities 20 7 29 26
4016 Castle Donington Brook Severn Trent Water 28 14 29 23
4017 Monks Brook Via Drain Southern Water 5 5 29 29
4018 Cradlebridge Petty Swr Southern Water 11 5 29 14
4019 Hell Brook Severn Trent Water 14 0 29 22
4020 Culverted Holgate Beck Yorkshire Water 38 -5 29 6
4021 Stock Brook Culvert Via Sws United Utilities 9 -22 29 -12
4022 Of Spratton Brook Anglian Water 10 10 29 29
4023 Gawcott Brook Anglian Water 3 3 28 28
4024 Eccleston Mere United Utilities 48 -89 28 -1,981
4025 Of River Ribble United Utilities 5 3 28 25
4026 To River Yarty South West Water 6 6 28 28
4027 Pin Brook South West Water 21 12 28 18
4028 Longford Stream Southern Water 5 -3 28 -29
4029 River Llwchwr Dwr Cymru Welsh Water 21 16 28 4
4030 Sea Dwr Cymru Welsh Water 37 31 28 27
4031 Dunlop Conduit, River Tame Severn Trent Water 11 4 28 19
4032 Thelsford Brook Severn Trent Water 8 2 28 19
4033 Horden Burn/Thorpe Burn Northumbrian Water 48 48 28 28
4034 River Wyre Estuary United Utilities 16 2 28 20
4035 Murton Beck United Utilities 53 7 28 -23
4036 Malt Mill Lake South West Water 10 -5 28 -3
4037 Longrock Stream South West Water 14 5 28 8
4038 Deans Brook Folly Bk United Utilities 43 13 28 10
4039 Scrase Bridge Stream Southern Water 8 -4 28 10
4040 Crosby Catchwater Drain Severn Trent Water 36 13 28 11
4041 Broughton Beck Northumbrian Water 19 4 28 20
4042 Flood Relief Channel Sur W Sew Anglian Water 36 23 28 19
4043 River Lliedi Dwr Cymru Welsh Water 34 25 28 23
4044 Un Black Dyke Anglian Water 3 3 28 28
4045 Norbury United Utilities 25 25 27 27
4046 Raven Beck, River Eden United Utilities 53 45 27 24
4047 Timbermans Creek Anglian Water 10 -2 27 21
4048 Wollaston Brook Anglian Water 37 7 27 6
4049 Little Sea Wessex Water 12 1 27 8
4050 Coastal Waters Dwr Cymru Welsh Water 5 3 27 26
4051 River Ock Thames Water 2 0 27 25
4052 Cantern Brook Severn Trent Water 32 7 27 13
4053 Strad Brook Wessex Water 21 19 27 25
4054 Outwood Common R Crouch Anglian Water 10 10 27 27
4055 Gatcombe Brook South West Water 25 4 27 10
4056 Westmeadow Brook Severn Trent Water 10 -69 27 -1,321
4057 Nant Creuddyn Dwr Cymru Welsh Water 42 -3 27 2
4058 Prittle Brook Anglian Water 18 4 27 0
4059 Tweed Northumbrian Water 30 27 26 26
4060 Whaddon Brook Severn Trent Water 18 -27 26 -49
4061 Poise Brook Rvr Goyt United Utilities 53 11 26 8
4062 Bulmer Beck Yorkshire Water 10 5 26 4
4063 Ovenden Brook Yorkshire Water 29 2 26 0
4064 Trough Brook River Rother Yorkshire Water 7 -1 26 23
4065 Y Brenin Dwr Cymru Welsh Water 11 2 26 14
4066 River Mersey Estuary Via Sws United Utilities 35 35 26 26
4067 Hen Brook Severn Trent Water 4 -15 26 -29
4068 River Whitewater Thames Water 15 5 26 18
4069 Hips Burn Northumbrian Water 26 11 26 21
4070 Pigs Lea Brook Rvr Irwell United Utilities 27 27 26 26
4071 Stutton Brook Anglian Water 3 3 26 26
4072 Nut Brook Severn Trent Water 17 -6 26 16
4073 Higher Leat Via Sws South West Water 8 4 26 22
4074 Linburn Beck Northumbrian Water 32 -8 26 0
4075 Blackhills Gill Northumbrian Water 28 11 26 17
4076 Smite Brook Severn Trent Water 20 4 26 5
4077 Stoodleigh Stream South West Water 27 27 26 26
4078 Estuarial Waters Of River Dee Dwr Cymru Welsh Water 26 10 26 -1
4079 Pentre Ffwrdan Stream Dwr Cymru Welsh Water 8 -65 26 -949
4080 Bell Brook Severn Trent Water 14 7 26 19
4081 Cattewater Plym Estuary South West Water 12 2 26 18
4082 Longmoor Pool Severn Trent Water 9 8 26 26
4083 Un-named tributary of Black Cart Water Scottish Water 8 -10 26 -87
4084 Glastonbury Mill Stream Wessex Water 4 3 26 21
4085 Sniggley Ditch United Utilities 11 -10 26 19
4086 Ebbw Fawr River Dwr Cymru Welsh Water 26 19 26 24
4087 Unnamed River Stour Anglian Water 8 1 26 8
4088 Labdon Stream South West Water 7 7 25 25
4089 River Clyst Valley Via Sws South West Water 22 8 25 10
4090 Lopen Stream Wessex Water 4 2 25 24
4091 Kempnough Brook United Utilities 14 5 25 11
4092 St Andrews Stream Wessex Water 23 10 25 18
4093 Laithehouse Beck Yorkshire Water 21 14 25 6
4094 Orgreave Common Drain Yorkshire Water 34 12 25 4
4095 Salfords Stream Thames Water 7 3 25 20
4096 Abhainn na cille water Scottish Water 5 -1 25 -154
4097 Wintersett Reservoir Yorkshire Water 16 9 25 15
4098 Brookside Brook United Utilities 23 3 25 10
4099 Otter Burn Northumbrian Water 23 11 25 21
4100 Nant Melyn/Rasa Brook Dwr Cymru Welsh Water 15 -12 25 1
4101 Unnamed Stream To Loughor Estu Dwr Cymru Welsh Water 5 -3 25 11
4102 Far Moor Dyke Yorkshire Water 18 -5 25 -19
4103 Charlton Bottom Via Sws Wessex Water 44 20 25 13
4104 Lam Brook Via Sws Wessex Water 46 7 25 13
4105 Broughs Gill Northumbrian Water 14 5 25 5
4106 Crowpill Rhyne Wessex Water 6 -1 25 13
4107 Mill Stream Eastburn Beck Yorkshire Water 20 15 25 8
4108 Shaw Dyke Yorkshire Water 9 5 25 13
4109 Sea Cut Yorkshire Water 7 2 25 17
4110 Chaffinch Brook Thames Water 13 4 25 9
4111 Thornton Le Beans Beck Yorkshire Water 12 0 25 19
4112 River Bourne Severn Trent Water 4 -1 24 2
4113 Scarrow Beck River Bure Anglian Water 9 5 24 15
4114 Liverpool Bay United Utilities 31 11 24 8
4115 River Kent Estuary, Morecambe Bay United Utilities 33 18 24 -51
4116 Netherton Burn Northumbrian Water 15 6 24 14
4117 Sand Dike Yorkshire Water 23 -2 24 13
4118 Poise Brook United Utilities 30 5 24 -15
4119 Hawes Gill United Utilities 40 -27 24 -26
4120 Culworth Brook Thames Water 11 4 24 16
4121 Hornton Stream Thames Water 2 -3 24 -14
4122 Longacre Burn Northumbrian Water 27 13 24 17
4123 Chapel Pool Lune Estuary United Utilities 41 30 24 -6
4124 Bilston/Darlaston Brook Severn Trent Water 22 -24 24 -30
4125 River Gaywood Anglian Water 14 14 24 24
4126 Buss Creek Anglian Water 124 62 24 8
4127 Hey Brook South West Water 10 4 24 17
4128 Truro River South West Water 32 4 24 -14

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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