1.  Could they be the cause of the problem, by contaminating the water?

2.  Or Pavitra, who drinks contaminated water in her Delhi slum.

3.  The most probable explanation is that the water was contaminated.

4.  Trenches are built into the base to collect noxious fluids that could leak out and contaminate water.

5.  A report published by the National Rivers Authority warns that toxins produced by blue-green algae could prove a hazard to human health should water become contaminated.

6.  He believes that sewage is contaminating the water and driving them away.

7.  Many had no time to save their possessions as the filthy, sewage contaminated water surged into their homes.

8.  Barahona hopes the water is not contaminated with sewage.