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Table J36: 125 Irrigation districts in Natal. 1993. Irrigation district Original date of establishment Bergville 27 January 1989 Dwars-Nkunzi 19 August 1988 Gluckstadt 4 February 1972 Heatonville 4 February 1972 Hlatikulu-Uttle Mooi 9 May 1986 lIIovo 23 December 1983 Impala 10 April 1992 Injambili 28 June 1985 Ixopo 2 December 1983 . Karkloof 19 September 1986 Undequespruit 6 March 1987 Uttle Tugela 3 May 1985 Lower Umvoti 3 April 1987 Merrivale· 19 September 1986 Mfuli 13 September 1935 Middle Umgeni· 4 December 1987 Mkuze Falls 10 August 1928 Mnyamvubu 8 June 1984 Mooi River 30 May 1986 Mpolweni-Sterkspruit· 3 April 1987 Muden 11 March 1977 Mzalanyoni 2 September 1983 Mzintlava 24 February 1984 Ngwangwane 19 September 1986 Nkwalini 16 July 1926 Polela 30 May 1986 Pongola River 19 September 1986 Sterkspruit Sundays River Umlaas Umvoti 28 December 1984 24 August 1984 1 April 1977 8 June 1984
111(11111:41m'l 126 Table J36: Irrigation districts in Natal. 1993 Icontinued). Irrigation district Original date of establishment Umzimkulwana 15 December 1989 Umzimvubu' 20 November 1987 Upper Umgeni' 3 April 1987 Weenen Unknown Winterton Unknown Source: Note: After the Department of Water Affairs and Forestry. Durban. 1993. The asterisk denotes an irrigation district without an irrigation board.
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A WATER RESOURCES AND SANITATION SY
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Contents 1 11111111111:1&11 CHAPTER
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lillllllllllll.'. Tables (continued
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11111111];11,,11. 10.1 Introduction
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Table J2: Water budgets for Natal/K
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Table J4: Overall gradient distribu
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13 111.IJJ1111111 (when runoff: rai
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Table J7: 15 Hi) A small part of Kw
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17 1\11••111;[11. Table J7: App
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19 TableJ8: Hydrological Research U
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21 11111••111111111 TableJ9: Cr
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23 Table J10: Areas. mean annual pr
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25 1111III1I11,rllll Table J10: Are
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IlfllllllllllJJilll 40 Table J12: K
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10.6 Runoff models 42 Models are no
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111I111'llll1JII 10.9 The variabili
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49 lil11l1tllll;lllll Table J20: Es
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51 Table J20: Estimated annual wate
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53 Table J22: Estimated annual wate
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55 Ijlllltl1llflll (ii) Considerabl
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57 large catchments data. The Centr
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59 1111111111111' KwaDlangezwa, 283
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Other reports 61 Research Unit, Dep
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63 1IIIIIE1111Elfl Id} The rest of
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65 Table J24: Department of Water A
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Page 78 and 79: 75 Table J24: Department of Water A
Page 80 and 81: 77 Table J24: Department of Water A
Page 82 and 83: 79 Table J24: Depanment of Water Af
Page 84 and 85: 81 Station closed Station closed U2
Page 86 and 87: 83 Station Drainage region Station
Page 88 and 89: 85 Table J25: Number of stations wi
Page 90 and 91: 87 iI11J111!!ltllllil equal share i
Page 92: 89 Source: liI After Anonymous, 198
Page 95: 111111111111111 92 boards (discusse
Page 98 and 99: Table J28: Some relevant data on se
Page 101 and 102: IDIIIIIDII':1111 98 (ii) The co-ord
Page 103 and 104: 100 the respective departments at P
Page 105 and 106: 1IIIIIIJIII.i1 102 Table J31: Categ
Page 107 and 108: 104 10.16.2 Environmental impacts o
Page 109 and 110: Table J32: 106 A simplified form of
Page 111 and 112: 1111111111111 108 Table J33: Action
Page 113 and 114: 110 There is a growing South Africa
Page 115 and 116: 112 Attention has also been focused
Page 117 and 118: 114 10.17 Some legal aspects of wat
Page 119 and 120: 116 time (mean exceedance flow), du
Page 121 and 122: IIII.IIWIIIII 118 10.17.4 Use of wa
Page 123 and 124: 1[lIlIIIIIIJ. 120 Government dams,
Page 125 and 126: 10.18.4 River diversions 122 Depart
Page 127: 124 10.18.6 Irrigation districts an
Page 131 and 132: Table J37: Irrigation boards in Nat
Page 133: Tabla J37: Irrigation boards In Nat
Page 136 and 137: 133 Table J38: Some urban areas in
Page 138 and 139: 135 Table J38: Some urban areas in
Page 140 and 141: Table J38: 137 Some urban areas in
Page 142 and 143: 139 Source: (i) After Ardington, E.
Page 144 and 145: 141 i111_1illll1l noted above!. are
Page 146 and 147: 143 (ii) The Directorate of Land an
Page 148 and 149: 145 1111111111111 the Board will as
Page 150 and 151: 147 Table J40: Administrative regio
Page 152 and 153: 149 111II1.llllIf:J Government Noti
Page 154 and 155: 151 111I.lIllllil1 Government agenc
Page 156 and 157: 153 Table J43: Joint Services Board
Page 159 and 160: 156 Source: (i) After Jenkin, F. (e
Page 161 and 162: 158 Chief Directorate: Administrati
Page 163 and 164: Source: See also: Note: 160 Afterth
Page 165 and 166: 162 off low - responsible inter ali
Page 167 and 168: 11111.'.111:11111 164 If it became
Page 169 and 170: tlll••••I:IB11 NOTES: 166
Page 171 and 172: Contents 167 CHAPTER 11: GROUNDWATE
Page 173: Tables 169 Table K1: Some geologica
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174 Bate, 1992}*. The use of water
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176 X313, Pretoria, 0001; as well a
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179 a particular site, then a stati
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181 111...1[111 of streams and rive
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183 good. with a total dissolved so
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(iii) Holocene sands lQuaternary) 1
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187 Table K1: Some geological forma
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189 fault-bounded blocks, although
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191 11.6.4 Aquifer characteristics
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193 coarse and the latter, fine and
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195 111.BIII!I!111 The yields of bo
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11...,].11 198 11.7 Methods of grou
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201 11...11111 Table K3: Methods of
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203 boreholes are drilled for both
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205 1111111111'.1 3838. The borehol
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207 11.11 Standards applicable to t
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(a) Gravity springs 209 Gravity spr
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Table K4: Spring discharge in the V
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214 Table K5: The number of ephemer
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JJI...lllJll 218 (h) Some of the wa
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i'•••liDl Group E: Pure water
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222 Bond, Van Wyk proposed the foll
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1[11....11.,1 224 (b) Chlorides are
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226 Source: Edwards, T.J., 1989. Pe
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228 also obtainable from the Ground
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Ill1••lll1l 230 • Hofkes, EH.
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232 • Vegter, J.R., 1995. Groundw
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234 • Meyer, R. and Godfrey, l.,
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Springs 236 • Africa Co-operative
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NOTES: 238
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239 CHAPTER 12: WATER SUPPLY PLANNI
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12.1 Introduction 241 111'1&111111
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243 rilliltl.'ll water consumption
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Table L2: Cattle 245 study of reduc
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Note: (j) (ii) (iii) 247 Animal wat
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249 111111:llllltJI Source: After A
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1111111118.1 252 Table L4: Some per
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lillll.'.II' 254 high income. Iow d
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* 256 to obtain. Difficulties inclu
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1111...11 (iii) 258 Home Glasson Pa
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260 Table L6: Some typical domestic
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* ** 262 are in agreement with cons
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Table L7: Some South African indust
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Table L7: 267 Some South African In
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Table L7: 269 Some South African in
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Table L7: 271 Some South African In
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Note: (i) (ii) (iii) (iv) (v) (vi)
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276 concentrate on the provision of
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278 Table L8: RSA-KwaZulu Developme
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Table L9: 281 RSA-KwaZulu Developme
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Table L9: 283 RSA-KwaZulu Developme
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286 the Green book, namely, Anonymo
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IIIRlmlllillS 12.4.2 Durban Metro W
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291 design phase of projects. Any a
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294 Table L12: Some extant water wh
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11111111111911 296 • Energy Resea
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299 11111111111111 Table l13: Speci
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301 Table L13: Specific training ag
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304 Road and Umlazi (Durban); Pinet
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307 Table L14: A spatial typology o
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310 Table L15: A typology of social
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1111111..11 312 Table L15: A typolo
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315 114,[llll1\'1 Table L16: Some s
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317 Table L18: Mean household size
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319 Illil;JJtllllll Table L19: Exis
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321 Table L19: Existing housing del
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323 1IIIi!:lil.'11 a month, and a s
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NOTES: 325
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