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CHAPTER 10: A BRIEF INVENTORY OF THE SURFACE WATER RESOURCES OF NATALlKWAZULU An early description <strong>of</strong> the hydrological cycle... Ecclesiastes. 1:7 AD the rivers run into the sea; yet the sea is not full: unto the place from whence the rivers come, thither they return again.
Page 1: A WATER RESOURCES AND SANITATION SY
Page 5: Contents (continued) 2 10.17.5 Wate
Page 8 and 9: Tables (continued) 5 II...II;IIJ Ta
Page 10 and 11: 7 liI1'''.llliI11 Table J1: Mean an
Page 12 and 13: 9 tlllll.II'1111 The distribution o
Page 14: 11 Forty-one river profiles includi
Page 17 and 18: 14 Table J6: Mean annual runoff and
Page 19 and 20: lllliililllllllll.tll 16 Table J7:
Page 21 and 22: 111[I.tlll'II" 18 Table J8: Hydrolo
Page 23 and 24: 20 Source: After Middleton, B.J., L
Page 25 and 26: 22 Table J9: Cross reference of Dep
Page 27 and 28: 24 Table J10: Areas. mean annual pr
Page 29 and 30: 'IIIIIII:II••) 26 Table J10: Ar
Page 31 and 32: 1111111114111111111 28 Table J10: A
Page 33 and 34: 1IIIRtllJllill 30 Table J10: Areas.
Page 35 and 36: 1111I[(lIiIIIB. 32 Table J10: Areas
Page 37 and 38: 34 Table J10: Areas. mean annual pr
Page 39 and 40: 11111111111111 36 Table J10: Areas.
Page 42 and 43: 39 Table J11: Runoff equations fort
Page 44 and 45: 41 J13. Dent, Schulze and Angus (19
Page 46 and 47: 43 10.7 Mean annual runoff in Natal
Page 50: 47 Table J18: Estimated mean annual
Page 53 and 54:
11111181111.1 50 Table J20: Estimat
Page 55 and 56:
52 Table J21: Estimated annual wate
Page 57 and 58:
1111[,111111111111 54 Table J22: Es
Page 59 and 60:
56 (1981); and Pitman, Middleton an
Page 61 and 62:
58 • Middleton, B.J. and Pitman,
Page 63 and 64:
60 • Rivett-Carnac. A.S. and Schu
Page 65 and 66:
62 • Thomas, W.M., 1951. Part 2.
Page 67 and 68:
64 Table J23: Types of gauging stat
Page 69 and 70:
111.IIIEtlll:.11 66 Table J24: Depa
Page 71 and 72:
1,.111111811 68 Table J24: Departme
Page 73 and 74:
70 TableJ24: Department of Water Af
Page 75 and 76:
72 Table J24: Department of Water A
Page 77 and 78:
Page 79 and 80:
Page 81 and 82:
Page 83 and 84:
Page 85 and 86:
IflBlIEilllllll 82 Station closed S
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84 (v) The Department of Agricultur
Page 89 and 90:
86 have streamflow gauges situated
Page 91 and 92:
lil11111111111111 Table J26: Intern
Page 94 and 95:
91 11_11111 for Merthley Dam and ac
Page 97 and 98:
Table J28: Some relevant data on se
Page 99:
Table J28: Some relevent data on se
Page 102 and 103:
99 of dams in NatallKwaZulu can als
Page 104 and 105:
101 Table J29: Size classification
Page 106 and 107:
103 • Anonymous, 1990. Interim gu
Page 108 and 109:
105 1111111111,11\1 in Table J32, w
Page 110 and 111:
107 Note: (i) Impacts: + beneficial
Page 112 and 113:
109 Table J33: Actions and environm
Page 114 and 115:
111 Table J34: Components of the en
Page 116 and 117:
113 • Department of Environmental
Page 118 and 119:
115 Court. Private water may be sur
Page 120 and 121:
117 Act. The Act requires that anyo
Page 122 and 123:
119 10.18 Some water control system
Page 124 and 125:
121 Table J35: Government water sup
Page 126 and 127:
123 IBllllililII11 area of Umgeni W
Page 128 and 129:
Table J36: 125 Irrigation districts
Page 130 and 131:
Tabla J37: Irrigation boards In Nat
Page 132 and 133:
Table J37: Irrigation boards in Nat
Page 135 and 136:
Ilt.II.lliB) 132 Table J38: Some ur
Page 137 and 138:
I[EIIWI1I8l1 134 Table J38: Some ur
Page 139 and 140:
136 Table J38: Some urban areas in
Page 141 and 142:
IrlSlItRilll1 138 TableJ38: Some ur
Page 143 and 144:
140 (v) Readers reqUlnng informatio
Page 145 and 146:
. 142 Table J39: Administrative reg
Page 147 and 148:
·11111.'.111.1 144 The cities and
Page 149 and 150:
11••1.11111111 146 Permanent Wa
Page 151 and 152:
148 Table J42: Proclaimed KwaZulu t
Page 153 and 154:
150 The Department of Works was inv
Page 155 and 156:
111111tBIIIIl{i 152 authorities*. B
Page 157:
154 Table J43: Joint Services Board
Page 160 and 161:
167 Table J44: Some relevant statis
Page 162 and 163:
159 Table J45: Civil protection org
Page 164 and 165:
161 The conference papers are avail
Page 166 and 167:
163 costs), the situation prevailin
Page 168 and 169:
NOTES: 165 11111_111111
Page 170 and 171:
CHAPTER 11: GROUNDWATER IN NATAlIKW
Page 172 and 173:
IIfll••11I11 Contents (continue
Page 176:
Illtlll1l11l':11 172 groundwater co
Page 179 and 180:
175 subterranean water control area
Page 181:
177 Database. The data-sets include
Page 184 and 185:
IrIllIllIJ,iIJI 180 11.6 A review o
Page 186 and 187:
182 ground beneath gum and wattle t
Page 188 and 189:
184 residential, industrial and irr
Page 190 and 191:
(b) Secondary aquifers (i) Intrusiv
Page 192 and 193:
188 Table K1: Some geological forma
Page 194 and 195:
190 location by major faults as in
Page 196 and 197:
192 interior valleys in the north.
Page 198 and 199:
194 decomposition in the hard rock
Page 200:
11l1li1141:81 196 relatively thin v
Page 203:
199 11••111[51 province are the
Page 206 and 207:
IllllllllllBrl 202 Region Drilling
Page 208 and 209:
204 comply with the requirements of
Page 210 and 211:
206 A programme initiated by the th
Page 212 and 213:
208 as well as fittings and polyeth
Page 214 and 215:
11111••1\1'11 210 Table K4 prov
Page 217 and 218:
213 IIIIBIIIII Table K5: The number
Page 220:
Table K7: 216 Pietermaritzburg, 55
Page 223 and 224:
219 IIIBD'llllt (g) Group C waters
Page 225 and 226:
221 1111&'.111 (d) The most acidic
Page 227 and 228:
223 111DJ11ll1li (d) Waters of Grou
Page 229 and 230:
11.15 Hygrophilous trees in NatallK
Page 231 and 232:
227 11...111(11 Table K9: Common gr
Page 233 and 234:
229 111••lltllll southern Afric
Page 235 and 236:
231 11111I11111 • Parsons, R., 19
Page 237 and 238:
233 fll...il.tl [Directorate of Geo
Page 239 and 240:
235 1IIIIIIIItlit • Directorate o
Page 241 and 242:
NOTES: 231
Page 243 and 244:
CHAPTER 12: WATER SUPPLY PLANNING F
Page 245 and 246:
1111.111111 Tables (continued) 240
Page 247 and 248:
IIIII11IE. 242 implications of majo
Page 249 and 250:
1IIIIEtllDII 244 See also: (i) Davi
Page 251 and 252:
l'IIIIII.lt 246 Table L2: A broad o
Page 253 and 254:
11111111111 248 Table L3: Some Sout
Page 256 and 257:
* *** 251 111111111111r.1 of which
Page 258 and 259:
253 Table L4: Some per capita house
Page 260 and 261:
255 Table L5: Some water consumptio
Page 262 and 263:
* ** 257 11118[111"8 (ii) The Clerm
Page 264 and 265:
259 (v) Alcock. P.• 1986. An exam
Page 266 and 267:
* ** *** 261 Illlxlllllrll/J includ
Page 268:
I 263 • Illll_IIB'11 Supply sourc
Page 271 and 272:
Table L7: 266 Some South African in
Page 273 and 274:
Page 275 and 276:
Page 277 and 278:
1111.11." (ii) (iii) (iv) (v) (vi)
Page 279:
111111111111 274 paper products, fr
Page 282 and 283:
277 11111:[.1111111 Africa. Five co
Page 285 and 286:
1IIIIIII1I11J (ii) (iii) (iv) (v) (
Page 287 and 288:
Table L9: 282 RSA-KwaZulu Developme
Page 289:
Note: (i) (ii) (iii) (iv) (v) 284 T
Page 292 and 293:
287 Note: (i) The water demand data
Page 294:
289 11111iJJll1111tl or a French dr
Page 298 and 299:
293 Table L12: Some extant water wh
Page 300 and 301:
295 • Turbomachinery Research Gro
Page 303 and 304:
298 Table l13: Specific training ag
Page 305 and 306:
300 Table l13: Specific training ag
Page 308 and 309:
303 1llltlllllE&111 Source: (i) Aft
Page 310:
305 the evolution of informal settl
Page 314 and 315:
309 period 1970 - 1980. Some 320000
Page 316 and 317:
311 Table L15: A typology of social
Page 319 and 320:
314 Table L16: Some sources of popu
Page 321 and 322:
tltllt.IEII (iii) (iv) 316 The Bure
Page 323 and 324:
trllll.1111I11 (ii) liii) 318 Part
Page 325 and 326:
320 Table L19: Existing housing de6
Page 327 and 328:
322 Source: After Walker, N., 1993.
Page 329 and 330:
IllllllIIl1 For further information
Page 331:
NOTES: 326
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