7 . 3 MMM OOI SSS Y S T E M 7 . 3 . 1 GGG REATER MMM POFANA BBB ULK WWW ATER SSS UPPLY Planning No. 105.24 Project No. Project Status Detailed Feasibility (as at January 2011) Project Description Sustained housing development and tourism related activities are increasing the water demand at several nodes along the R103 road between Lions River (uMngeni Local Municipality) and Mooi River (Mpofana Local Municipality). This growth is beginning to stress local water resources and water supply infrastructure in the area. It has been identified that a regional bulk water supply scheme is required to ensure that the area has a reliable water supply that will sustain this growth into the future. The proposed scheme ( Figure 7.4) will obtain raw water from the soon-to-be constructed Spring Grove Dam on the Mooi River for a WTP to be situated adjacent to the dam. From here potable water will be pumped to two command reservoirs. The first reservoir will be located at Bruntville in Mooi River. This reservoir will serve the greater Mooi River area and will have the potential to supply the Muden/Rocky Drift area. The Mooi River WTP and Rosetta WTP can then be decommissioned. A link pipeline to supply the Vaalekop community has also been investigated. The second reservoir will be at Nottingham Road which will then supply Balgowan, Lidgetton and possibly Lions River. There is also a link pipeline to Mount West. The scheme is likely to be built in phases to gradually increase the supply area. The scheme together with all the proposed phases is indicated in Figure 7.5. Key information on this project is summarised in Table 7.4. Table 7.4 Project information: Greater Mpofana Bulk Water Supply Scheme. Project Components: Phase 1 : Water Treatment Works, associated pumpstations, pipeline to Nottingham Road and reservoir, and pipeline to Rosetta and Bruntville in Mooi River with associated reservoirs. Phase 2: Pipeline from Nottingham Road Reservoir to Balgowan and then Lidgetton including the Balgowan Reservoir. Phase 3: Pipeline from Nottingham Road to Mount West including a reservoir at Mount West. This pipeline should be constructed when the water demands in the Mount West and Currys Post can sustain the infrastructure development costs to supply water to this area. Capacity: 15Ml/day initially; Two upgrades to be undertaken when required to reach an ultimate capacity of 45Ml/day. 341 Figure 7.4 General layout of the Greater Mpofana Bulk Water Supply Scheme. 342 Mooi River Vaalekop Vaalekop Rosetta 0.2Ml Bruntvil le 12Ml Ø 110 Rosetta 1Ml MMTS 2 RWP Spring Mooi River Grove Ø 500 Spring 10Ml Grove Res. WTP Notting Mt. Nottingham ham Ø 110 West Road Road 0.5Ml 10Ml Currys Post Balgown 5Ml Balgown, Lidgetton and Lions River Figure 7.5 Schematic of the Greater Mpofana BWSS. Institutional Arrangements Umgeni Water will own, operate and maintain this bulk scheme and will sell potable water to the Umgungundlovu District Municipality as per the Bulk Water Supply Agreement. The Umgungundlovu District Municipality will then reticulate to the end consumers through existing and new supply infrastructure. Beneficiaries The scheme will serve residential and tourist establishments in the Mpofana Municipality and uMngeni Municipality within the Umgungundlovu District Municipality. It will also be a 343 source of potable water for low cost housing in Bruntville and Lions River in the Mpofana and uMngeni municipalities respectively. The forecasted water demand for the Greater Mpofana BWSS is shown in Table 7.5. Table 7.5 Water forecasts for the Greater Mpofana BWSS. Mpofana Municipality 2013 2043 2013 2043 2013 2043 Growth Rate Low Growth (0.0%) Realistic Growth (2.0%) High Growth (3.5%) Mooi River 6.71 7.26 7.26 7.88 7.70 24.79 Weenen & surrounds 0.00 0.00 0.00 3.00 0.00 5.21 Rosetta 0.36 0.39 0.39 0.44 0.41 1.38 Vaalekop 0.02 0.02 0.02 0.02 0.02 0.05 Mpofana Total 7.08 7.66 7.66 11.34 8.13 31.43 Mngeni Municipality 2013 2043 2013 2043 2013 2043 Growth Rate Low Growth (2.0%) Realistic Growth (4.4%) High Growth (6.0%) Nottingham Road 1.36 1.50 1.50 5.44 1.59 21.27 Mount West 0.14 0.15 0.15 0.56 0.16 1.34 Currys Post 0.00 0.00 0.00 0.00 0.00 5.06 Balgowan 0.73 0.81 0.81 2.93 0.86 7.05 Lions River 0.06 0.07 0.00 0.24 0.07 14.68 Mngeni Total 2.30 2.52 2.46 9.17 2.68 49.41 Total Volume - Expected 9.38 20.51 10.12 53.69 10.38 80.84 Implementation The project will be phased with the first phase consisting of a 15 Ml/day WTP at Spring Grove Dam and separate pumping mains to new reservoirs at Bruntville (12 Ml) and Nottingham Road (10 Ml). The total cost for Phase 1 is anticipated to be R 160 million (January 2010 cost). Whilst the scheme is required immediately, construction of the water treatment plant cannot commence until the construction of the Spring Grove Dam embankment and pump station have been completed and the contractors have vacated the site. This is anticipated to happen in 2013. Therefore, the scheme can only be commissioned at some date after this. 344 .