Glen Alpine IRS Technical Feasibility Report
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DEPARTMENT WATER AFFAIRS GLEN ALPINE IRS: LPR008 TECHNICAL FEASIBILITY REPORT WT13098/Revision 1 Date: 20 August 2014 PREPARED FOR: PREPARED BY: Department Water Affairs WSM Leshika No 2 Rhodesdrift Street Tel: (015) 491 4756 Hampton Court, Polokwane, 0700 Fax :(015) 491 2086 Tel: (015)290 1200 Fax: (015)295 3249 DEPARTMENT WATER AFFAIRS GLEN ALPINE RWS: LPR008 TECHNICAL FEASIBILITY REPORT 2 PREPARED FOR: PREPARED BY: Department Water Affairs WSM Leshika No 2 Rhodesdrift Street Tel: (015) 491 4756 Hampton Court, Polokwane, 0700 Fax:(015) 491 2086 Tel: (015)290 1200 Fax: (015)295 3249 CONTENTS 1. PROJECT INTRODUCTION 2. DEMAND ANALYSIS 3. WATER CONSERVATION / WATER DEMAND MANAGEMENT 4. WATER QUALITY 5. ANALYSIS OF EXISTING INFRASTRUCTURE 6. IDENTIFY VARIOUS OPTIONS 7. SOURCES 3 1. PROJECT INTRODUCTION Definition of Problem WSM Leshika Consulting (Pty) Ltd has been appointed as term consultant to assist the Department Water Affairs to update the Implementation Ready Study for LPR008 Glen Alpine Regional Water Scheme previously done by EVN Consulting. Due to the water shortage and poor water quality prevailing in the Blouberg and Molemole Local Municipalities it is considered to utilize the Glen Alpine Dam water or a Regional Ground Water Scheme to augment and blend the existing groundwater source. The study is intended to review and update the findings of the previous IRS study done by EVN Consulting with the latest infrastructure, population and water requirement information. The designs have to be altered if needed to incorporate the new information. The study also needs to try and establish alternative options if available. The study involves the water supply to 78 villages, located in the Blouberg and Molomole local municipalities, which is currently essentially from groundwater. The groundwater potential varies greatly across the area and although many high yielding boreholes exist, water quality is poor (classes 3&4) and cannot be safely utilized without treatment. The operation, maintenance and management of distant boreholes are generally sub-standard which results in borehole installations being damaged, abandoned and not able to operate. Internal reticulations are basic and rudimentary with street standpipes and sub-standard level of service. 4 2. DEMAND ANALYSIS Current Demand Analysis VILLAGE HOUSE-HOLDS HOUSE-HOLDS POPULATION WATER SUPPLY FROM LOCAL CENSUS 2011 SIZE 2013 WATER DEMAND AADD (kl/d) BALANCE : SOURCES (kl/d) (Based on (kl/d) 2011 Summer Peak Domestic Associated Losses Other TOTAL 2013 Census) PF = 1.5 Ground Surface 2013 2013 2013 2013 2013 2013 Total 2013 w ater Water Berg-en-Dal 313 4.22 1 365 64 13 15 92 138 80 0 80 58 Ga-Mamoleka 259 4.22 1 130 53 11 13 77 115 40 0 40 75 Ga-Mankgodi 308 4.22 1 344 63 13 15 91 136 250 0 250 - 114 Gorkum 609 4.22 2 657 125 25 30 180 270 180 0 180 90 Grootdraai 273 4.22 1 191 56 11 13 80 120 0 0 0 120 La Rochelle 9 4.22 39 2 0 0 2 4 50 0 50 - 46 Madibeng 201 4.22 877 41 8 10 59 89 30 0 30 59 Morotsi 588 4.22 2 565 121 24 29 174 261 240 0 240 21 Papegaai 271 4.22 1 182 56 11 13 80 120 20 0 20 100 Sebotlana 238 4.22 1 038 49 10 12 71 106 20 0 20 86 Sekhung 334 4.22 1 457 69 14 17 100 150 250 0 250 - 100 Varedig 158 4.22 689 33 7 8 48 71 150 0 150 - 79 Vergelegen 338 4.22 1 475 70 14 17 101 152 60 0 60 92 Gorkum 17 009 802 160 192 0 1 154 1 732 1 370 0 1 370 362 De La Roche 41 4.22 179 8 2 2 12 17 3 3 15 De Villiersdale 157 4.22 685 32 6 8 46 70 0 0 70 De Villiersdale 1 116 4.22 506 24 5 6 35 52 60 60 - 8 De Villiersdale 2 75 4.22 327 15 3 4 22 33 0 0 33 Driekoppies 249 4.22 1 086 51 10 12 73 110 75 75 35 Ga-Ntshireletsa 88 4.22 384 18 4 4 26 38 13 13 26 Kirstenspruit 178 4.22 777 37 7 9 53 80 10 10 70 Mons 279 4.22 1 217 57 11 14 82 124 10 10 114 Nieuw e Jerusalem 25 4.22 109 5 1 1 7 11 10 10 1 Non-Parella 154 4.22 672 32 6 8 46 70 120 120 - 50 Silw ermyn 127 4.22 554 26 5 6 37 56 50 50 6 Sw arts 162 4.22 707 33 7 8 48 71 25 25 46 Thabanantlhana 21 4.22 92 4 1 1 6 9 3 3 6 Silwermyn / Kirstenspruit 7 294 342 68 83 0 493 740 378 0 378 363 Bodie 751 4.22 3 276 155 31 37 223 335 20 20 315 Brodie Hill 556 4.22 2 426 114 23 27 164 246 195 195 51 Dithabaneng 126 4.22 550 26 5 6 37 56 50 50 6 Ga-Hlako 427 4.22 1 863 88 18 21 127 190 90 90 100 Ga-Mabeba 157 4.22 685 32 6 8 46 70 330 330 - 260 Gamakgw ata 23 4.22 100 5 1 1 7 11 96 96 - 86 Ga-Malokela 442 4.22 1 928 111 22 27 160 240 55 55 185 Ga-Mampote 213 4.22 929 44 9 11 64 96 25 25 71 Ga-Maselela 423 4.22 1 845 87 17 21 125 188 234 234 - 46 Ga-Mokopane 187 4.22 816 39 8 9 56 84 120 120 - 36 Kobe 1127 4.22 4 917 283 57 68 408 611 303 303 308 Kutumpa 415 4.22 1 810 104 21 25 150 225 93 93 132 Kw aring 422 4.22 1 841 106 21 25 152 228 90 90 138 Manye 244 4.22 1 064 50 10 12 72 108 125 125 - 17 Miltonduff 1 4 4.22 17 1 0 0 1 2 95 95 - 93 Mokumuru 184 4.22 803 38 8 9 55 82 25 25 57 Mongalo 277 4.22 1 208 57 11 14 82 124 25 25 - 93 Sesalong 84 4.22 366 21 4 5 30 45 90 90 - 45 Udney 1 90 4.22 393 19 4 5 28 42 50 50 - 8 Udney 2 3 4.22 13 1 0 0 1 2 0 0 2 Werden 22 4.22 96 5 1 1 7 11 60 60 - 50 Ga-Hlako 26 947 1 386 277 332 0 1 995 2 993 2 171 0 2 171 630 TOTAL Ga-Raw esi / Gorkum / Silwermyn / Ga-Hlako 51 251 2 530 506 607 0 3 643 5 465 3 919 0 3 919 1 354 5 VILLAGE HOUSE-HOLDS HOUSE-HOLDS POPULATION WATER SUPPLY FROM LOCAL CENSUS 2011 SIZE 2013 WATER DEMAND AADD (kl/d) BALANCE : SOURCES (kl/d) (Based on (kl/d) 2011 Summer Peak Domestic Associated Losses Other TOTAL 2013 Census) PF = 1.5 Ground Surface 2013 2013 2013 2013 2013 2013 Total 2013 water Water Dalmeny 8 4.22 35 2 0 0 2 4 0 0 99 Dalmeny 35 2 0 0 0 2 4 0 0 0 99 Buffelshoek 4 4.22 17 1 0 0 1 2 90 0 90 - 88 Kgatalala 49 4.22 214 10 2 2 14 21 0 0 0 21 Thalahane 585 4.22 2 552 147 29 35 211 317 60 218 278 257 Thalahane 2 783 158 32 37 0 227 340 150 218 368 190 Avon 2447 4.22 10 675 673 135 162 970 1 454 450 750 1 200 1 004 Bul Bul 83 4.22 362 17 3 4 24 37 0 0 37 Dantzig 2 2 4.22 9 0 0 0 0 0 0 0 0 Ga-Kibi 127 4.22 554 26 5 6 37 56 96 96 - 40 Indermark 2724 4.22 11 884 615 123 148 886 1 329 270 729 999 1 059 Innes 129 4.22 563 27 5 6 38 58 120 120 - 62 Puraspan 1015 4.22 4 428 279 56 67 402 603 125 523 648 478 Sew ale North 13 4.22 57 3 1 1 5 7 0 0 7 The Glade 6 4.22 26 1 0 0 1 2 0 0 2 Avon 28 557 1 641 328 394 0 2 363 3 545 1 061 2 002 3 063 2 484 Blouberg 795 4.22 3 468 199 40 48 287 430 100 100 330 Dantzig 1 777 4.22 3 390 195 39 47 281 422 75 75 347 Ditatsu 254 4.22 1 108 52 10 12 74 112 0 0 112 Ga-Mamohw ibidu 431 4.22 1 880 108 22 26 156 233 25 25 208 Ga-Mamolele 105 4.22 458 22 4 5 31 47 125 125 - 78 Ga-Mmatemana 257 4.22 1 121 53 11 13 77 115 40 40 75 Ga-Motshemi 231 4.22 1 008 48 10 12 70 104 15 15 89 Ga-Rammutla 1 215 4.22 938 44 9 11 64 96 40 40 56 Ga-Rammutla 2 110 4.22 480 23 5 6 34 50 100 100 - 50 Ga-Tefu 107 4.22 467 22 4 5 31 47 165 165 - 118 Ga-Tshabalala 346 4.22 1 509 87 17 21 125 188 15 15 173 Matshira 177 4.22 772 44 9 11 64 96 50 50 46 Mophamamana 207 4.22 903 43 9 10 62 92 15 15 77 Pickum 1 60 4.22 262 15 3 4 22 33 0 0 33 Pickum 2 239 4.22 1 043 49 10 12 71 106 15 15 91 Schroelen 19 4.22 83 4 1 1 6 9 10 10 - 1 Schroelen 2 54 4.22 236 11 2 3 16 24 10 10 14 Sew ale South 306 4.22 1 335 77 15 18 110 166 30 30 136 Tsw atsane 153 4.22 667 32 6 8 46 70 85 85 - 15 Blouberg 21 128 1 128 226 273 0 1 627 2 440 915 0 915 1 525 Bochem (Helena Franz) 112 4.22 489 31 6 7 44 66 300 0 300 - 234 Bochem North 412 4.22 1 797 113 23 27 163 244 150 0 150 94 Bochum 766 4.22 3 342 211 42 51 304 456 150 252 402 306 Borkum 15 4.22 65 3 1 1 5 7 10 0 10 - 3 Cumbrae (Senw abarw ana) 1516 4.22 6 614 417 83 100 600 901 210 1 113 1 323 691 Ga-Mashalane 211 4.22 920 43 9 10 62 92 120 0 120 - 28 Witten 1311 4.22 5 719 270 54 65 389 584 255 0 255 329 Senwabarwana 18 946 1 088 218 261 0 1 567 2 350 1 195 1 365 2 560 1 155 TOTAL Thalahane / Avon / Blouberg / Senwabarwana 71 414 4 015 803 965 0 5 783 8 675 3 321 3 585 6 906 5 452 TOTAL BLOUBERG LM 122 700 6 547 1 309 1 572 0 9 428 14 143 7 240 3 585 10 825 6 806 The current water demand situation shows a deficit of 6 806 Kl/day currently when the 1.5 times Summer Peak factor is taken into consideration.