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17 1\11••111;[11. Table J7: Approximate location of Hydrological Research Unit (HRUI tertiary catchments in Natal/KwaZulu (continuedl. HRU tertiary catchment Magisterial district T41 Alfred, Port Shepstone, Bizana·, Mount Ayliff· T42 Port Shepstone T51 Underberg, Polela T52 Underberg, Polela, Mount Currie, Umzimkulu· T53 Polela, Ixopo, Umzimkulu· T54 Umzimkulu· (small portion of catchment only, in Natall KwaZulul T55 Alfred, Port Shepstone, Ixopo Source: After Middleton, B.J., lorentz, S.A., Pitman, W.V. and Midgley, D.C., 1981. Surface water resources of South Africa, VOl V: drainage regions MNPQRST. The eastern Cape Part 1 (Textl, various pages, and Part 2 (Appendices), various pages, HRU Report No. 12/81, Hydrological Research Unit, University of the Witwatersrand, Johannesburg, as well as Pitman, W.V., Middleton, B.J. and Midgley, D.C., 1981. Surface water resources of South Africa, VOl VI: drainage regions UVWX. The eastern escarpment Part 1 (Text), various pages, and Part 2 (Appendices), various pages, HRU Report No. 9/81, Hydrological Research Unit, University of the Witwatersrand, Johannesburg. Note: (i) HRU tertiary catchment W34 does not exist, while tertiary catchment W46A is in Swaziland. (iil Parts of quaternary sub-catchments or individual quaternary subcatchments themselves, may lie outside Natal/KwaZulu. Readers should consult maps shOWing the location of tertiary and quaternary catchments, found in the above two references. (iii) Districts marked with an asterisk are in the Transkei. The district of Matatiele is no longer a legal entity, and is part of the Mount Currie Magisterial District.
111[I.tlll'II" 18 Table J8: Hydrological Research Unit IHRU) tertiary and quaternary catchments in NatallKwaZulu. Tertiary catchment Quaternary sub-catchment Hydrological zone code number code number W Wll Wll0 - Wl16 Z7 W12 W12l -W125 Z7 W13 W13l - W136 Z7 W14 W14l-W146 Z7 W15 W15l - W157 Z7 W2l W2ll - W217 Z12 W22 W22l -W226 Z12 W23 W23l - W239 Z12 W24 W24l -W248 Z8 W25 W25l - W256 Z8 W26 W26l - W267 Z13 W3l W3ll-W317 Z8 W32 W32l - W326 Z13 W33 W33l -W339 Z13 . W35 W35l - W354 Z13 W36 W36l - W366 Z13 W4l W4ll - W4l9 Z5 W42 W42l -W424 Z5 W43 W43l -W439 Z5 W44 W44l -W448 Z13 W45 W45l -W456 Z13 W46A W46l -W463 W46l - W463 (Z5) W46B W464 -W466 W464 - W466 (Z13) V VOlA VOll - V017 VOll - V013; V016; V017 IZ3) V01B V014-V019 V014; V015; V018; V019 IZ10) V02 V02l -V029 Z10
Page 1: A WATER RESOURCES AND SANITATION SY
Page 4 and 5: Contents 1 11111111111:1&11 CHAPTER
Page 7 and 8: lillllllllllll.'. Tables (continued
Page 9 and 10: 11111111];11,,11. 10.1 Introduction
Page 11 and 12: Table J2: Water budgets for Natal/K
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Page 64 and 65: Other reports 61 Research Unit, Dep
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67 Table J24: Department of Water A
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79 Table J24: Depanment of Water Af
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81 Station closed Station closed U2
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83 Station Drainage region Station
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85 Table J25: Number of stations wi
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87 iI11J111!!ltllllil equal share i
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89 Source: liI After Anonymous, 198
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111111111111111 92 boards (discusse
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Table J28: Some relevant data on se
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IDIIIIIDII':1111 98 (ii) The co-ord
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100 the respective departments at P
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1IIIIIIJIII.i1 102 Table J31: Categ
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104 10.16.2 Environmental impacts o
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Table J32: 106 A simplified form of
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1111111111111 108 Table J33: Action
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110 There is a growing South Africa
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112 Attention has also been focused
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114 10.17 Some legal aspects of wat
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116 time (mean exceedance flow), du
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IIII.IIWIIIII 118 10.17.4 Use of wa
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1[lIlIIIIIIJ. 120 Government dams,
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10.18.4 River diversions 122 Depart
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124 10.18.6 Irrigation districts an
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111(11111:41m'l 126 Table J36: Irri
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Table J37: Irrigation boards in Nat
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Tabla J37: Irrigation boards In Nat
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133 Table J38: Some urban areas in
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135 Table J38: Some urban areas in
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Table J38: 137 Some urban areas in
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139 Source: (i) After Ardington, E.
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141 i111_1illll1l noted above!. are
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143 (ii) The Directorate of Land an
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145 1111111111111 the Board will as
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147 Table J40: Administrative regio
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149 111II1.llllIf:J Government Noti
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151 111I.lIllllil1 Government agenc
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153 Table J43: Joint Services Board
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156 Source: (i) After Jenkin, F. (e
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158 Chief Directorate: Administrati
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Source: See also: Note: 160 Afterth
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162 off low - responsible inter ali
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11111.'.111:11111 164 If it became
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tlll••••I:IB11 NOTES: 166
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Contents 167 CHAPTER 11: GROUNDWATE
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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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