Homepage/ Berita Utama Jutaan Meter Kubik Air PDAM Subang Terbuang Percuma, Pemkab Merugi. Ikuti Kami; Jika dalam hitungan bocor air pipa PDAM perhari dalam hitungan harga yang sudah ditetapkan Kenaikan tarif baru sesuai surat edaran No. 970/624/PERUMDATRS sebesar Rp.4000 yang sudah diberlakukan di bulan Januari tahun 2020 lalu. Diatidak bisa memastikan kapan SK kenaikan tarif air bersih PDAM Tirta Musi ini dikeluarkan Walikota. Saat itu Andi mengatakan kenaikan tarif 15 persen atau sekitar Rp 500 rupiah per kubik ini yang paling ideal menurut perhitungan dari sisi teknis dan operasional karena sudah 11 tahun tarif PDAM tidak naik dan tarif ini merupakan yang Fast Money. The time period when the sun is no more than 6 degrees below the horizon at either sunrise or sunset. The horizon should be clearly defined and the brightest stars should be visible under good atmospheric conditions no moonlight, or other lights. One still should be able to carry on ordinary outdoor time period when the sun is between 6 and 12 degrees below the horizon at either sunrise or sunset. The horizon is well defined and the outline of objects might be visible without artificial light. Ordinary outdoor activities are not possible at this time without extra time period when the sun is between 12 and 18 degrees below the horizon at either sunrise or sunset. The sun does not contribute to the illumination of the sky before this time in the morning, or after this time in the evening. In the beginning of morning astronomical twilight and at the end of astronomical twilight in the evening, sky illumination is very faint, and might be time of Civil Sunset minus the time of Civil time of Actual Sunset minus the time of Actual Sunrise. The change in length of daylight between today and tomorrow is also listed when available. A new irrigation scheme proposed for the inland north Queensland town of Hughenden is a step closer to reality with a site for a significant new dam now pointsThe site for a dam near Hughenden has been earmarked at Saego StationThe dam will be part of the $300m Hughenden Irrigation ProjectHipCo board member Jeff Reid described the dam site as a "natural ring-tank"About $180 million of the estimated $300 million cost of the scheme had already been promised by the Morrison Government, as part of a deal with Katter's Australian Party to guarantee supply during the last Member for Kennedy Bob Katter, Senator Susan McDonald, and Assistant Minister for Road Safety and Freight Transport Scott Buchholz joined board members of Hughenden Irrigation Project Corporation HIPCo at a property north-west of the town to unveil a plaque marking the much more work will need to be done before the dam and associated infrastructure can be built at Saego, near the home of hay grower and HIPCo board member Jeff Reid."We've done exhaustive studies. We've looked at 20 different dam sites and we've come to one now," Mr Reid said."This one is a weir across the Flinders River with a channel leaving the weir to one side to an off-stream storage," he said. Jeff Reid says his rhodes grass hay farm is proof of the potential for more irrigation in the district.ABC Rural Tom MajorMr Reid described the chosen site as a "natural ring-tank" requiring closure on just one side of the four sides of the impoundment."We end up with 200,000 megalitres in this ring tank, the deepest point being 14 metres," he said."After that we're going to have a pipe out of the ring-tank that is gravity fed to the farms, so the farmer is going to get water to his door without electricity."HIPCo chairman Shane McCarthy said the process required a substantive business case to be prepared, which he anticipated would be completed by January."We've taken DERM [the Department of Environment and Resource Management] along for the ride and they've been very positive with us about the water sources … licences and that sort of stuff," Mr McCarthy said."The water is in reserve there available, but we've got to make sure we don't take too much out of the river and leave nothing for anybody else."Favourable cropsSmall-scale fodder production is already occurring in the district, with Mr Reid cutting 100 hectares of rhodes grass for hay."We're hoping after 30 years of studies and rhetoric that we're finally getting somewhere this time," he said."We've got a commitment from the Prime Minister that we're going to build this thing, we've stopped doing feasibility studies and we're actually going to start something."The board of HIPCo said the dry climate of Hughenden, with an average rainfall of about 400 millimetres, was such that only 80,000 megalitres could be promised on a reliable to 10 megalitres per hectare would be needed in the long, hot summers of the district, meaning about 8,000 hectares would be able to be irrigated for neededFor the scheme to progress, licences would need to be acquired by the irrigators from the State Government for water to be harvested from the Flinders River, Queensland's irrigation projects proposed downstream and environmental flows to the Gulf of Carpentaria rank as concerns for those sceptical about the proposal."Obviously the scheme has to buy [water permits], we're not asking for them for free," Mr Reid said."We think there's plenty of water allocated in the river we can take without environmentally damaging the river."The HIPCo scheme is looking for 1/60th or less than 2 per cent of the water in the Flinders catchment."After three decades of debate about the irrigation project, Mr Reid said this funding package and proposal was the best chance of finally realising the proponents' vision."We want to do it — we don't want to be still wondering and dreaming and scheming in another 10 years' time," he said."That's why we've gone for the simplest, lowest-cost, easiest option. To us, we've ticked every box and to the government it seems to be a no-brainer."Political pressureMember for Kennedy Bob Katter, a long-time proponent of dam building in northern Australia, said he would maintain pressure on Federal and State Governments to follow through with the project."The time is right now to do great public works," he the plaque along with former senior public servant Sir Leo Hielscher, Mr Katter pointed to the administration of past State Governments as a model to repeat."There's not been a dam built in Queensland in 30 years, since Leo Hielscher and [Joh] Bjelke-Petersen left the stage," he said."You'll never see a better time — interest rates are almost zero, now is the time to do it."State MP Robbie Katter said the community in Hughenden was "desperate" to see development to arrest the population slide in the Katter described the Saego Dam proposal as a conservative option designed to not give the government any reason to dismiss the proposal. Sir Leo Hielscher and Kennedy MP Bob Katter, who both served under the Bjelke-Petersen Government in the 1980s, unveil the Hughendam dam plaque.ABC Rural Tom Major"No-one seems to be very aspirational in the State Government anymore, particularly with the departments, you don't want to give them any reason to say no," he said."It's been wound down to something that's very doable and very compromising, something that would be very effective for the region."Cost per megalitre, I think it's down to $3,000 or $4,000 per megalitre, where you've got a lot of proposals up around $12,000 a megalitre to produce water out of a dam."State Natural Resources Minister Anthony Lynham said Commonwealth money was welcome in Queensland, but he questioned the motives of the Morrison Government."We are always keen to see Federal money heading for Queensland — even if it was just to buy Bob Katter's vote," he said."My department is working with the Hughenden Irrigation Project Corporation on a number of issues including the amount of water the project is seeking."Any new water infrastructure project needs to stack up environmentally and economically."Posted 8 Oct 2019Tue 8 Oct 2019 at 730pm, updated 9 Oct 2019Wed 9 Oct 2019 at 113am Hidroituango another landslide crisis at a hydroelectric dam Over the last few days another landslide crisis has occurred at a hydroelectric dam site, this time at the large Hidroituango project in Colombia. This is a very large embankment dam being built across the Cauca River near to Ituango in Antioquia Department. The dam, estimated to cost $ billion, was due to be completed this year. When operational it will generate 17% of the electricity demand of Colombia. The dam is 225 m high. The present landslide crisis is a little difficult to understand as media reports are somewhat confused. The best narrative appears to be in this news report in Spanish, which seems to suggest that- In 2014, Empresas Públicas de Medellín EPM responsible for the dam diverted the Cauca River through two tunnels, each with a diameter of 14 m, to allow construction of the dam. Earlier this year, as filling of the lake began, the water was diverted to a further, larger tunnel 200 m upstream from the first two. The original tunnels were plugged with concrete. Unfortunately, three landslides occurred at the site between 28th April and 7th May. These landslides blocked the flow of water, and the lake started to fill to a dangerous level. Concerns started to be expressed that the lake might overtop the dam, triggering collapse. Correction it is now clear that the tunnel was blocked by a collapse event that propagated to the surface to generate a crater, rather than a conventional landslide. This crater can be seen in satellite imagery. This image, showing a large landslide scar, is shown in some reports- A large landslide scar at the site of the Hidroituango site in Colombia. Image via the The Star. . Meanwhile , the Global Forest Coalition has this image of a landslide, probably originating from the scar shown above . The blockage of the tunnel started to cause the water level in the dam to rise, and evacuations were initiated. To try to manage the risk, EPM attempted to dynamite the seals from the original two tunnels. However, progress was to slow, leading to the decision on 10th May to drain the lake through the powerhouse, causing considerable damage. But, on 12th May the main tunnel naturally unblocked, releasing a large volume of water that caused extensive flooding downstream. There is a strange video online that appears to show an explosive release of water at the site, and a further severe release, apparently at a different location. . There is dramatic footage showing the downstream flooding caused by the release of the water- . It appears the tunnel then resealed naturally, causing a further impoundment of water. Latest reports seem to indicate that about 7000 people have been evacuated, whilst EPM are mitigating the risks. It appears that the priority is to complete the construction of the crest of the dam, which would allow the use of the spillways to control the flow. I have noted previously that landslide risks are not being managed adequately at many large hydroelectric construction projects. This would seem to be yet another example.

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