We need a five drop policy: a sustainable water policy which would treat with care our five sources of water.
Drop No. 1 is a drop of rainwater. We need to handle rainwater with care. If we harvest it appropriately we will be able to make use of it when it is required. If we harvest it we will also reduce its flow in streets and diminish substantially the overloading of our sewers whenever it rains.
Drop No. 2 is a drop of storm water. Storm water flowing through our streets can be substantially reduced if rainwater harvesting is done appropriately. The remaining storm water would then be less of a danger to life and limb. It would be less of a civil protection issue and much more an exercise of collecting rainwater from streets to be utilised for non-potable purposes.
Drop No. 3 is a drop of ground water. Ground water has been mishandled for years on end. It is time that we realise that this resource which has been collected and stored by nature is finite. Through the years it has been over-extracted such that the quality of what’s left is compromised. It has also been contaminated by human activity, primarily agriculture, such that it would take a minimum of 40 years to reverse the process.
Drop No. 4 is a drop of treated sewage effluent. Treated sewage effluent is being discarded as a waste when it should be valued as a very precious resource. Treating sewage before discharging it into the sea honours Malta’s obligations under the Urban Wastewater Directive of the European Union. However throwing it away into the sea is an unsustainable practice which should be discontinued. We should appreciate its value and put it to good use. At the moment we are discharging treated sewage effluent into the sea at three points along our coast and then taking it up again at other points to produce potable water through our reverse osmosis plants!
Drop No. 5 is a drop of sea water. Sea water is much cleaner nowadays due to sewage being treated before discharging into the sea. This has improved substantially our bathing waters. But sea water is also the source of over 55% of our potable water which we process through our reverse osmosis plants.
These five drops of water make up our water resources.
Water is of strategic importance to ensure a healthy eco-system, for our quality of life as well as for our economy. Government can and should do much more to protect this precious resource. But we should also consider how we could improve our input by using this resource properly.
A sustainable water policy is a five drop policy through which each and every one of us values each and every source of water.
This post was originally published in di-ve.com on Friday 9th November 2012