The Scottish Environment Statistics - 1998

5. WATER

Table 5.1 Developed water resources, 1985 - 1996 ML/d1 Number and yield of sources in each category2 Total incl. Reservoirs Feeder Underground sources comp Total and intakes River intakes Boreholes Springs res. Supply Sources lochs2   No5 Yield No4 Yield No3 No. Yield No. Yield No. Yield No 1985 .. 3,462 822 2,973 360 29 409 248 36 29 44 156 1986 .. 3,443 791 2,954 345 30 401 238 47 30 41 148 1987 831 3,411 813 2,932 345 31 386 237 56 39 37 161 1988 852 3,516 833 2,988 345 27 415 252 51 40 61 169 1989 864 3,515 846 2,993 355 30 405 247 55 49 62 165 1990 862 3,486 844 2,971 357 30 403 246 55 51 57 160 1991 850 3,495 830 2,982 353 30 402 242 55 52 56 153 1992 780 3,560 762 3,028 330 29 427 237 51 35 54 131 1993 768 3,547 750 3,015 316 27 428 243 50 35 56 129 1994 750 3,550 732 3,019 312 26 425 236 52 36 54 122 1995 728 3,501 710 2,990 308 26 424 233 55 37 32 106 1996 692 3,487 675 2,943 287 27 422 223 77 35 46 103 1996 by Water Authority North 381 838 381 388 132 5 391 156 40 13 19 75 West 189 1,350 183 1,317 105 6 13 49 13 7 6 16 East 122 1,300 111 1,238 50 16 18 18 24 15 21 12 Source: SOWSU 1 MI/d = megalitres per day = 1,000 m3/d." 2 Yield from reservoirs, lochs, feeder intakes and regulating reservoirs. The yield recorded for a large number of sources is the abstraction limit prescribed in the relevant Water Order. In many cases, the available yield will be different from the legal limit. 3 A count of reservoirs, lochs and regulating reservoirs, with feeder intakes counted separately in column 4. 4 Pre 1992 the number of sources recorded included multiple sources at a single location. 5 Compensation reservoirs are excluded except in this column, where they are included in the count. ..Not available