Water is vital for all known forms of life and is considered a basic need for us humans. Ironically though, while over 71 percent of the Earth’s surface is covered by water, only 2.53 percent of the Earth’s water is fresh water and two thirds of the fresh water is locked in glaciers and permanent snow making only 0.01 percent of the Earth’s water readily available for human use. In Sri Lanka water has become a major issue at present due to over use, poisoning, misuse and mismanagement of this precious natural treasure.
But for most of us water is a basic need that is fulfilled at the turn of a faucet. According to the 2008 national census, pipe-borne water coverage in Sri Lanka is around 34 percent making us among the fortunate few. However while we are provided with clean drinking water right at our homes there continues to be an acute shortage of water in the world and more importantly in other parts of Sri Lanka, mainly in the dry zone. Water which is a basic need for us is in fact a luxury for many of them and is a day to day struggle.
Problem
Most of the southeast, east, and northern parts of the country comprise the dry zone, which receives between 1200 and 1900 mm of rain annually, mostly between the months of October to December. And during the rest of the year there is very little precipitation in these areas. The people in these zones are in fact dependant on external sources to provide them with water. According to the Director of the Rain Water Harvesting Forum, a non-governmental organization promoting rain water harvesting in these areas, Tanuja Ariyananda on average 1.5 hours a day is spent on collecting water by the people of arid areas.
According to her there are various water sources being used. Research done by the Sri Lanka Rain Water Harvesting system shows the most used water sources during the dry as well as wet seasons in the dry zones are tube wells while rivers and tanks, privately dug wells and water provided by other sources, but sadly none of these are stable sources and the people have to constantly alternate between them to fulfil their various needs.
But in recent times using the water from natural sources and its quality in the North and North Central provinces has become questionable due to the unexplained increase of chronic kidney disease and complications related to the disease. Anurdhapura and Pollonnaruwa districts are associated with 22 percent of Kidney disease patients. While research done has come up non-conclusive of the root cause, the common belief prevalent among the people and officials attributes the sudden rise of Chronic Kidney patients to the water sources of the area. In Ariyananda’s opinion it could be a combination of various issues with the water sources in the area such as contamination due to chemical use and high levels of chloride as well as other factors. The water in these areas also appear to be high in Chloride and according to the World Health Organization excessive intake of drinking water containing sodium chloride at concentrations above 2.5g per litre has been reported to cause hyper tension.
Ancient solution
“Let not a single drop of water that falls from the skies flow to the sea without being used for the benefit of man” said Parakaramabahu the Great. Likewise the King ensured the populace was provided with water for agriculture and all their needs by utilising rain water. In ancient times rain water harvesting was practiced in Sri Lanka through history by collecting water in tanks. At Sigiriya the ancient ruins of water tanks, swimming pools, artificial waterways and fountains that are in existence even today bear testimony to the effective use of rain water. However with the introduction of pipe borne water systems and technological developments rain water harvesting techniques have become a lost art.
Today the non-governmental group Lanka Rain Water Harvesting Forum (LRWHF) is attempting to introduce the practice with regards to the use of water for domestic use. LRWHF aims to encourage the people in the dry zones to collect rain water and use it during the dry seasons in the area. Currently according to research more than 21,000 rain water harvesting systems are in operation through out the country.
A rainwater harvesting system |
“It has not been easy to convince people about the idea of rain water harvesting” says Director of LRWHF, Tanuja Ariyananda. They are not used to it and hence have an apprehension about using the collected water for drinking citing reasons such as concerns about quality and difference is taste-she said speaking to The Nation.
S.Wasantha from Kudakachchakodi as village in Vavunya was one such skeptic. “At first we were reluctant to use the water for drinking purposes since we thought it is not safe. But we got a sample checked by the Water Board and the result was that it quite safe to use the rain water for drinking. We are very grateful for the LRWHF for providing us with the rain water harvesting tank.”
S. Wasantha |
The group has built 750 rain water harvesting systems in the Vavuniya district. They provide the families with low cost tanks needed for rain water harvesting and water is collected through joining the gutters of the roof to divert the water gathered to a tank.
Vavuniya district also has seen a sudden increase of Chronic Kidney disease cases and we came across kidney patients who say they have benefited from rain water system. “We have experienced that the diseases are less and now, everyone wants a tank for their household since they are convinced that the use of rain water for drinking purposes are safe” stated A.Leelawathi and H.G Siriyalatha of Mahakachchakodi village.
The tanks also help the people to avoid consuming the water which has high mineral content in these areas. S.Markandu of Thalikulam stated “we use the rain water for our drinking purposes since we are aware of the fact that the water in wells is high in calcium and therefore it is not safe. We feel that the water we use from the rain water tanks is safe”.
The Village of Thalikulam has more than 350 household units, is a resettlement village with the majority being disabled people. They have four public wells and also tube wells for their use. However since the water is not suitable for drinking LRWHF has provided the villagers with 51 rain water harvesting tanks.
Such rainwater harvesting systems are also currently in use at the Cheddikulam Base Hospital, Pampaimadu Ayurvedic Hospital, Andiyapuliyankulam school and other villages.
“However funding is the difficult part. Unfortunately we are not able to provide these tanks for everyone in the village though the requests are many” says Tanuja Ariyadasa leaving many unable to source clean water during the dry season.
Long-term solution
The roads are tarred; houses built and with much development going on things appear to be falling in to place in the North. However looks can be deceiving and it is baffling why a long term solution has not been introduced for this burning issue. Water is considered a human right by the United Nations. So isn’t the human right for water of this people being breached? Our aim is to become a developed nation, however can we call our selves that if the water issue will still be a problem in years to come. Isolated groups alone cannot solve this issue and coming together to help the people suffering from this is indeed the need of the hour.