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water affairs and wonderfonteinspruitSubmitted by turbosprout on Wed, 2008-02-06 08:43
The Business Times story published over the weekend placed the issue of safe drinking water on the nation's agenda, and in light of the electricity crisis it's quite right that this receives national attention.
Dept of Safety and Security: Crime? No problem there, just lots of whingeing. Reports of 43 percent of DWAF managed dams having safety issues sounds pretty critical to me. Or what do they propose a safe tolerance level is for a water-stressed country? 60%? 80%? 43% sounds bad enough and I'd like to know what is being done to fix the problems especially in light of Peter van Niekerk, chief director of water resources planning at DWAF, commenting, "we have constructed some dams but nothing to the same extent because of much greater use is the opportunity to manage demand." Sounds suspiciously like More concerning is the contamination of ground water by radioactive mining waste in the Wonderfonteinspruit area. This is particularly worrying as the issue of uranium contamination... in the area was evident back in the "last year of the 20th Century", to quote Peter Wade, a CSIR scientist in this revealing article published online back in Feb 2003. It's also noted that the Potchefstroom city council took Durban Roodepoort Deep gold mining company to court over "alleged environmental transgressions" in 2003, but dropped the charges when it was pointed out that 3 other gold producers had operations in the area and so a compromise deal was made. "I am pleased that a way forward has been determined, based on sensible discussion rather than litigation," said the CEO at the time. Obviously the free-market economy has not come to the rescue of the environment since then (DRD's share price however did close 35c weaker to R35.10 at the time...) I'm absolutely amazed that it took over five years for the National Nuclear Regulator (motto: "for the protection of persons, property and environment") to release a report on what has been happening at Wonderfonteinspruit, surely they are failing in their legal obligations when they are not informing the public of a health threat they have known about for so long. Farmers grow food irrigated from dams in the area, residents of the Khutsong informal settlement fish from the spruit, yet it takes them this length of time to release a report! Martinus van Schalkwyk, Minister of Environment and Tourism, had this reponse when questioned in parliament: "The Report also raises concerns with regard to the potential impact of the contamination on the public in the Wonderfonteinspruit Catchment Area. However, it appears that additional research is required to reflect the true extent of contamination and its impacts." Well that's action for you. How many years to wait for the next report? If I lived in Potch or Carltonville I'd be relocating round about now. You know that by the time an issue has made Carte Blanche there is a serious problem lurking, especially when you read that Carte Blanche's independent testing of leeks grown in the area "contained sixteen times more uranium per kilogram than the daily limit, as suggested by the World Health Organisation, for human consumption" Aside from uranium contamination, heavy metals cadmium, copper, cobalt and arsenic - by-products of the mining industry - have also accumulated in the spruit's sediment and are at unacceptably high detectable levels in vegetables for human consumption. Cattle farmers next to the spruit have been warned by the NNR not to let their animals drink the water and some farmers are faced with killing their animals and burning them as there is no market for contaminated meat or milk. With this level of heel dragging or ineptitude by the NNR I think the real national disaster would be for Eskom to continue pursuing a nuclear programme when the public can't be assured that the National Nuclear Regulator will protect them any more than it's done for the 450 000 or so residents of Khutsong and Potchefstroom. |
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what would your response be if they were building dams?
Pollution of the water supply is a serious issue and requires immediate addressing, but I want to ask a question about the building of dams.
What would your response be if they were building dams? Would it possibly be that the DWAF is destroying ecologies and having a negative impact on the environment?
Also, there is the whole question of dams producing methane. Maybe it is not quite as simple as saying build more dams. There has to be some reasonable point to balance our need for water and the impact it has on the environment.
Surely the best thing to do from an environmental perspective is to find ways to reduce the demands that we put on our planet?
Plug the leaks first
Interesting link, thanks. I'd never considered that hydroelectric power schemes are large emitters of greenhouse gases. See from the article that "the greenhouse effect of emissions from the Curuá-Una dam in Pará, Brazil, was more than three-and-a-half times what would have been produced by generating the same amount of electricity from oil."
I think the DWAF should get its house in order first before building new dams. If 43% of dams have safety issues, can we assume that some of them are leaking? Certainly there are lots of leaks in the system which need to be plugged. Just as we see large govt buildings (parliament included) with their lights on at night, and street lights operating during the day, I've been aware of muncipal water leaks and wastage.
I think that dams are just a part of the system and that the total drinking water and waste water system needs to be rethought. It is crazy that we flush our toilets with drinkable water. Countries like Sweden have run dual toilet schemes where urine is separated and used as nitrogen input to the agricultural system, for example. I've heard that the cost of the Berg River Dam could have paid for a rainwater tank for every resident of Cape Town...
Interesting comment about
Interesting comment about the Berg River dam project!
I've been looking a bit at composting toilets and wondering if people would ever be open to them - there is certainly lots of resistance (unsurprisingly).
composting toilets
Just think of all the water saved on flushing. I know someone who's made a humanure toilet using old tyres, but you need a steady supply of sawdust. I'll have a look at it sometime, maybe put it on that list of diy projects... There are also systems that can be engineered where your grey water is filtered and used to flush the cisterns and maybe this will turn fewer noses. We take modern ablutions for granted but even touring around Europe you quickly realise that not all toilets are created equal!
African Sanitation toilets
I've had a look at the Africa Sanitation composting toilets and they seem reasonably priced. I actually want to go and see them sometime, as they are based in Milnerton
composting toilets
i am always pleasantly surprised by composting toilets! they are never odorous and the water they save must be immense. the only real barrier is to change society perception... perhaps the hardest job of all.