2. Water Quality Screening Parameters

Try these first

1. 1.

   What does TDS stand for?

   Hint

   Think about dissolved substances in water.

2. 2.

   List one visible indicator that water may not be safe to drink.

   Hint

   Consider what you would notice about water at first glance.

3. 3.

   What parameter indicates particles suspended in water that do not dissolve?

   • Total Dissolved Solids
   • Total Suspended Solids
   • Turbidity

   Hint

   Think about what happens when you filter water.

4. 4.

   True or False: Hydrophobic substances dissolve easily in water.

   • True
   • False

   Hint

   Recall the properties of hydrophobic materials.

5. 5.

   A sample of water is reported to have a TDS of 200 mg/L. Is this sample generally considered safe for drinking? Justify your answer based on standards.

   Hint

   Refer to water quality guidelines.

6. 6.

   You receive a water sample that appears clear and has low turbidity, but the TDS is very high. What steps might you take to ensure its safety?

   Hint

   Consider what high TDS levels imply.