4 Sep 2006 : Column 2032Wcontinued
Both bathing water quality and river water quality have also improved. Monitoring by the Environment Agency has shown compliance with the mandatory standard of the Bathing Water Directive has risen from 79.3 per cent. in 1990 to 98.8 per cent. in 2005. Compliance with its more stringent guideline standard has risen from 34.2 per cent. in 1990 to 83.8 per cent. in 2005.
In England, 62 per cent. of rivers were of good quality in 2004 compared with 43 per cent. in 1990. In all years since 1993 over 90 per cent. of rivers in Wales have been of good chemical quality. Table 3, shows the chemical quality of rivers from 1990-2004.
Further improvements in water quality are anticipated as the Water Framework Directive is implemented between now and 2015. Based on a more sophisticated understanding of water quality than existing assessment methods, this Directive sets demanding targets for the ecological and chemical quality of surface waters and chemical and quantitative quality of groundwaters.
Ofwat publishes leakage figures by company, in its annual security of supply, leakage and efficient use of water report. Table 4, shows leakage rates from 1990-91, which is the earliest year that figures are available.
Table 3: River and Canal Water Quality: Chemical quality of rivers and canals( 1) : 1990( 2) , 1995, 2000-04, England, Wales, Northern Ireland |
| Length in km( 4) | |
| Good | Fair | Poor | Bad | | Percentage of total |
Years( 3) | A | B | C | D | E | F | Total | Good | Fair | Poor or bad |
EA Region
| | | | | | | | | | |
North West
| | | | | | | | | | |
1990
|
719
|
598
|
556
|
436
|
648
|
204
|
3,161
|
42
|
31
|
27
|
1995
|
1,159
|
1,927
|
1,027
|
695
|
758
|
132
|
5,697
|
54
|
30
|
16
|
2000
|
2,151
|
1,361
|
1,196
|
500
|
469
|
55
|
5,732
|
61
|
30
|
9
|
2001
|
2,231
|
1,271
|
1,255
|
559
|
367
|
65
|
5,748
|
61
|
32
|
8
|
2002
|
2,252
|
1,313
|
1,122
|
568
|
441
|
44
|
5,740
|
62
|
29
|
8
|
2003
|
2,209
|
1,294
|
1,149
|
638
|
371
|
78
|
5,740
|
61
|
31
|
8
|
2004
|
2,134
|
1,413
|
1,145
|
581
|
386
|
90
|
5,748
|
62
|
30
|
8
|
| | | | | | | | | | |
North East
| | | | | | | | | | |
1990
|
840
|
1,603
|
557
|
441
|
607
|
176
|
4,224
|
58
|
24
|
19
|
1995
|
2,107
|
1,781
|
872
|
626
|
764
|
82
|
6,232
|
62
|
24
|
14
|
2000
|
1,629
|
2,527
|
1,120
|
518
|
402
|
45
|
6,240
|
67
|
26
|
7
|
2001
|
1,724
|
2,336
|
1,214
|
558
|
376
|
25
|
6,233
|
65
|
28
|
6
|
2002
|
2,097
|
2,132
|
1,118
|
484
|
380
|
50
|
6,261
|
68
|
26
|
7
|
2003
|
2,121
|
2,070
|
1,015
|
498
|
406
|
48
|
6,157
|
68
|
25
|
7
|
2004
|
1,965
|
2,399
|
961
|
448
|
382
|
44
|
6,200
|
70
|
23
|
7
|
4 Sep 2006 : Column 2033W
4 Sep 2006 : Column 2034W
Midlands
| | | | | | | | | | |
1990
|
450
|
1,519
|
1,619
|
968
|
956
|
131
|
5,643
|
35
|
46
|
19
|
1995
|
777
|
2,183
|
2,121
|
885
|
548
|
66
|
6,579
|
45
|
46
|
9
|
2000
|
1,191
|
2,779
|
1,677
|
613
|
401
|
22
|
6,682
|
59
|
34
|
6
|
2001
|
1,280
|
2,949
|
1,468
|
552
|
424
|
14
|
6,686
|
63
|
30
|
7
|
2002
|
1,254
|
2,961
|
1,436
|
644
|
366
|
23
|
6,684
|
63
|
31
|
6
|
2003
|
1,187
|
2,721
|
1,570
|
741
|
464
|
44
|
6,726
|
58
|
34
|
8
|
2004
|
1,227
|
2,515
|
1,770
|
645
|
496
|
51
|
6,703
|
56
|
36
|
8
|
| | | | | | | | | | |
Anglian
| | | | | | | | | | |
1990
|
36
|
759
|
1,691
|
1,189
|
786
|
102
|
4,564
|
17
|
63
|
19
|
1995
|
250
|
1,638
|
1,468
|
850
|
580
|
28
|
4,815
|
39
|
48
|
13
|
2000
|
591
|
1,785
|
1,442
|
628
|
345
|
25
|
4,815
|
49
|
43
|
8
|
2001
|
807
|
1,976
|
1,161
|
533
|
331
|
8
|
4,815
|
58
|
35
|
7
|
2002
|
640
|
1,981
|
1,267
|
520
|
404
|
4
|
4,815
|
54
|
37
|
8
|
2003
|
395
|
1,719
|
1,486
|
695
|
483
|
4
|
4,782
|
44
|
46
|
10
|
2004
|
348
|
1,666
|
1,560
|
758
|
454
|
9
|
4795
|
42
|
48
|
10
|
| | | | | | | | | | |
Thames
| | | | | | | | | | |
1990
|
293
|
992
|
1,098
|
519
|
618
|
42
|
3,563
|
36
|
45
|
19
|
1995
|
534
|
1,299
|
1,160
|
573
|
216
|
13
|
3,796
|
48
|
46
|
6
|
2000
|
968
|
1,539
|
685
|
389
|
206
|
3
|
3,791
|
66
|
28
|
6
|
2001
|
1,032
|
1,537
|
711
|
395
|
112
|
2
|
3,789
|
68
|
29
|
3
|
2002
|
973
|
1,595
|
781
|
267
|
169
|
4
|
3,789
|
68
|
28
|
5
|
2003
|
833
|
1,600
|
764
|
384
|
188
|
15
|
3,784
|
64
|
30
|
5
|
2004
|
814
|
1,601
|
795
|
374
|
183
|
20
|
3,788
|
64
|
31
|
5
|
| | | | | | | | | | |
Southern
| | | | | | | | | | |
1990
|
238
|
713
|
672
|
292
|
238
|
33
|
2,186
|
44
|
44
|
12
|
1995
|
276
|
972
|
585
|
217
|
152
|
20
|
2,222
|
56
|
36
|
8
|
2000
|
462
|
868
|
524
|
218
|
145
|
3
|
2,219
|
60
|
33
|
7
|
2001
|
353
|
943
|
549
|
202
|
176
|
1
|
2,223
|
58
|
34
|
8
|
2002
|
284
|
688
|
757
|
320
|
180
|
1
|
2,230
|
44
|
48
|
8
|
2003
|
236
|
545
|
826
|
395
|
219
|
5
|
2,226
|
35
|
55
|
10
|
2004
|
261
|
633
|
749
|
337
|
247
|
6
|
2,233
|
40
|
49
|
11
|
| | | | | | | | | | |
South West
| | | | | | | | | | |
1990
|
1,644
|
2,700
|
1,301
|
695
|
363
|
68
|
6,771
|
64
|
29
|
6
|
1995
|
2,331
|
2,276
|
1,042
|
224
|
174
|
43
|
6,090
|
76
|
21
|
4
|
2000
|
2,753
|
2,198
|
768
|
184
|
144
|
1
|
6,047
|
82
|
16
|
2
|
2001
|
2,786
|
2,184
|
771
|
153
|
166
|
1
|
6,061
|
82
|
15
|
3
|
2002
|
2,568
|
2,473
|
687
|
158
|
161
|
13
|
6,061
|
83
|
14
|
3
|
2003
|
2,426
|
2,448
|
774
|
249
|
140
|
18
|
6,055
|
80
|
17
|
3
|
2004
|
2,443
|
2,389
|
788
|
244
|
172
|
17
|
6,052
|
80
|
17
|
3
|
| | | | | | | | | | |
England
| | | | | | | | | | |
1990
|
4,197
|
9,164
|
7,670
|
4,643
|
4,297
|
772
|
30,742
|
43
|
40
|
16
|
1995
|
7,693
|
12,291
|
8,358
|
4,106
|
3,212
|
384
|
36,044
|
55
|
35
|
10
|
2000
|
9,934
|
13,345
|
7,515
|
3,064
|
2,127
|
154
|
36,138
|
64
|
29
|
6
|
2001
|
10,426
|
13,478
|
7,200
|
2,978
|
1,963
|
123
|
36,167
|
66
|
28
|
6
|
2002
|
10,286
|
13,416
|
7,237
|
2,997
|
2,115
|
141
|
36,191
|
65
|
28
|
6
|
2003
|
9,577
|
12,512
|
7,627
|
3,638
|
2,289
|
213
|
35,856
|
62
|
31
|
7
|
2004
|
9,386
|
12,703
|
7,795
|
3,446
|
2,340
|
236
|
35,906
|
62
|
31
|
7
|
(1) Based on the GQA chemical classification system.
(2) Figures are three-year averages ending in the year shown
(3) Lengths are rounded to the nearest 1 km and may not exactly sum to totals.
(4) As the length of monitored rivers greatly increased in 2002, data are shown here for only those rivers that were being monitored before 2002.
Source publication:
e-Digest of Environmental Statistics, Published August 2005, Department for Environment, Food and Rural Affairs http://www.defra.gov.uk/environment/statistics/index.htm
|