The Scottish Environment Statistics - 1998

5. WATER

Table 5.12 Chemical classification of rivers by RPB1 area 19952 RPB Length in Class shown km Total Class 1 Class 2 Class 3 Class 4 Total 50,255 48,894 1,085 220 56 100% 97% 2% <1% <1% Clyde 10,531 9,863 588 66 14 100% 94% 6% 1% <1% Forth 3,351 2,834 354 133 30 100% 85% 11% 4% 1% Highland 13,830 13,784 21 14 11 100% >99% <1% <1% <1% North East 8,660 8,619 41 0 0 100% 100% <1% 0% 0% Solway 4,963 4,935 24 3 1 100% 99% <1% <1% <1% Tay 6,147 6,113 30 4 0 100% 99% <1% <1% 0% Tweed 2,773 2,746 27 0 0 100% 99% 1% 0% 0% Source: EPU: SOAEFD 1 The responsibilities of the River Purification Boards were taken over by SEPA in 1996. 2 River length no longer includes lochs, which were classified separately in 1995.