Testing the water for Ph.

On Thursday 27th of March we went to Brookvale Creek to look at bugs, and check the water. We tested salinity, temperature, turbidity and the ph (acid) in Brookvale Creek and at the Golf Course opposite Warringah Mall shopping centre.

* Salinity at the Rainforest was 480MS\cm at the Golf Coarse it was 445MS\cm.
* Temperature at the Rainforest was 17°c and at the Golf Coarse it was 22°c.
* Turbidity for the Rainforest and Golf Coarse were exactly the same at <10.
* Ph were the same again at 7 each.

The result for Brookvale Creek is good but for the Golf Course it was doing poor. The results show that the water quality is much better in the natural environment at Brookvale Creek.

Mr Taylor later uploaded our results to the Streamwatch website.

The water was clean.

By Siobahn

After our Waterbug training, David explained to us how to use the Streamwatch kit. It was very easy.

Our tests were for Salinity, Temperature, Turbidity and acidity (Ph). Each group took it in turns to do their tests.

We first tested the water in Brookvale Creek in the rainforest. The results indicated the water was good.

We then walked to the other side of Warringah Mall, it took about 20 minutes. We then also tested the water quality of Brookvale Creek after it went through Brookvale Industrial Area at the golf course. The results were the water was poor.

The results showed the water quality is much better in the natural environment in Brookvale Creek than near the golf course.

I had a great day.

Testing the temperature of the water.

By Adam

On the 27th of March Year 6 went to Streamwatch at Brookvale Creek. David and Alison from Streamwatch came to help us, we learnt how to use the equipment. We did Streamwatch water testing after we did the waterbug survey.

We measured ph, turbidity, temperature and salinity. When we tested the water first in the rainforest the water was perfect. We thought it was going to be disgusting and horrible

When we finished out tests the other groups did their test until everyone had a go at it.

Then we followed the creek through the pipes of the Brookvale Industrial Area. We stopped every time we saw one bit of the pipe and had a look until we came to a golf course so we decided to check the water there.

We did the same tests and the water was bad. So when we finished we went back to school.