
Last week, as part of the programme, some of the team visited the local hospital one morning as an alternative to working at the school. This resulted in one of the team members developing an interest into the water supply to the hospital, or rather lack of it. A meeting was arranged with the hospital and a couple of members of the local council to discuss solutions to the problem.
In the mid 60’s a bore hole had been dug to provide a continuous and independent water supply for the hospital, which had been sufficient up until 1997. They started experiencing problems with the mechanical pump which a local water engineer determined wasn’t worth repairing as the water table had pretty much dried up. There is a mains supply, but this is dependant on the local electricity supply and completely unreliable. If there is no electricity, the pumps that supply water to the town and surrounding areas don’t work and so there is no water. Staff get water by driving to a local spring to collect water in Jerry cans. Water tanks were installed to collect rainwater, but this is only effective during the rainy season. During the dry season they are always empty.
A gravity spring water source has been identified 6km away from the hospital in a town called Mugamba. This would supply continuous water. Financially it is a good solution as there is no need for pumps or pipes so no fuel or maintenance costs, just the initial set up costs. We agreed to test the water flow and purity straight away as the previous investigation of this source had been carried out in 2002, obviously a lot could change in 4 years.
I went with the local councillor and a water engineer to the stream and carried out the crudest water flow test I had ever seen in my life! (Not that I’ve seen that may water flow tests in my life!) Where the five sources of the stream converged they created a little dam with mud in which they placed a bit of bark they had just pulled off a nearby banana tree to direct the flow of water! At the end of the bark they placed a bowl to collect the water (it apparently holds 15litres) and timed how long it took for the bowl to fill up! This was repeated 3 times to get an average reading! Of course! (I wonder if this method would have been accepted for my GCSE Geography coursework!)
Following this we returned to the council offices and carried out numerous calculations to determine whether the supply would be sufficient for the hospital population, taking into account increasing population and many other factors and projecting for how many years the water supply would be sufficient for! I was actually quite impressed with how detailed they were in this area, considering methods of collecting data, and was stretched in trying to remember what I had been taught in maths to keep up with them, although got completely lost when they started using logs!
Next they will conduct a survey into water purity, sections and profiles of the land, effects to local community, more definitive costs etc while the team members have gone home to start fundraising for the project.
It was really exciting to be involved in this stage of the project.