Group Work

Guide

WASTE OF WATER

Presentation of work (Sara)

Our work is about waste of water in our school. Our work is based on measuring the amount of water pour a tap on a bathroom, a survey conducted by us and the visit to the cistern 2 of our ETAR.

it's amazing the amount of water that a public building, in this case a school, spend! We made a survey a population of 43 students of our school! The school spend much water but it has some solutions, like we gonna see later.

By caretaker of our school we could visit cistern 2 of our ETAR. It’s amazing a complexity the ETAR! With this visit we discovery that our school have too a hole, one perforation to remove water in underground.

Now, we gonna see a short video made by us – this video is a presentation of our work. Later, rita will talk about our ETAR and Linda and Mafalda will talk about the results of surveys.

We hope you enjoy and make sensitized for this important issue of our day: save water!

ETAR (Rita)

There is a system of treatment and reuse of water f or units 1, 2, 3 and 4 constituted by a set of elements destined to collect water from rain and residual water (sinks and showers) wich uses two wells pumping, located between units 2 and 3, to lead the water for storage in cistern 1.
These waters are conducted to a treatment station in order to be deposited in the cistern 2. From the cistern 2 these waters are conducted to the reuse system of water for toilets and urinals and to the firefighting system.

Surveys (Linda and Mafalda)

1. As we can see fifty-two percent of the interviewed say that they turn on the tap to the end, which is the equivalent of twenty-two people. Forty-eight percent say that they turn on the tap halfway, which is the equivalent of twenty-one people. We conclude that the majority of the interviewed are unaware of the water that is being wasted.
2. We found that fourteen percent of the interviewed play with water troughs in the summer, which is the equivalent of six people. Eighty-six percent do not play with water, equivalent of thirty-seven people. We can conclude that the majority of the interviewed are concerned with the, unnecessary, waste of water.
3. About the existence of the ETAR, fifty-one percent are aware of their existence (twenty two people). And twenty-one people are unaware of the existence of an ETAR at school, equals forty-nine percent of the interviewed.
4. Thirty-eight percent of the interviewed (sixteen people) said that they turned on the shower tap twice. Twenty-four percent (ten people) said that they turned on the tap four times in the shower.
5. Regarding the purchase of bottled water per week at school. Sixty-seven percent affirmed that they usually buy water (twenty-nine people) and sixty-seven percent affirmed that they do not buy it (twenty-nine people).

From the ones who answered that they usually buy water, sixty-six percent (nineteen people) buy every week a bottle of water, ten percent (three people) buy two bottles, seventeen percent (five people) buy three bottles, and seven percent (two people) buy four bottles.

To conclude we can say that there are still many people buying bottled water, when they can simply drink tap water, because it is perfectly safe.