oumaru creeks smell

I am going to find out about the smell of the water from oumaru creeks.

I am going to test this by the smell to see if it is fresh  I think that the culvert musty rubber foul.

resources and equipment we will need 2 bucket and 4 jars 2 strings and 4 sorts  of water.

I predict that the water has foul green and yellow sort of smell near the culvert.

I think this because the culvert has bits of rubber and tar .body odour