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4 marksWater and Land Pollution

CAPE Environmental Science Unit 2 · 2009 · Paper 2 · Question 7(c)(ii)

Figure 6 diagrams the hydrogeology around a landfill showing groundwater flow, a river, and drinking water Wells A and B.

Explain how a pollutant from the landfill could contaminate the drinking water well.

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Other parts of this question

  1. 7(a)(i)Rank the different solid waste types in order of increasing daily mass entering the landfill.[1 mark]
  2. 7(a)(ii)Determine the percentage contribution of the waste type with the smallest daily mass in the landfill.[1 mark]
  3. 7(a)(iii)Calculate the time (in days) required to deposit 28 tonnes of waste of the composition shown in Table 3.[2 marks]
  4. 7(a)(iv)Suggest ONE reason why the quantity of metal disposed of at the landfill is relatively low.[2 marks]
  5. 7(b)(i)Define the term 'leachate'.[2 marks]
  6. 7(b)(ii)Identify FOUR pollutants, excluding leachate, that can be released by a landfill.[4 marks]
  7. 7(c)(i)Identify which well is MOST likely to be contaminated by the landfill.[2 marks]
  8. 7(c)(iii)Explain why the other drinking water well is NOT likely to become contaminated.[2 marks]

More practice: the rest of this paper · more Water and Land Pollution questions · all CAPE Environmental Science Unit 2 past papers