Students will explain how pollution affects ground water and learn how to discover the location of a pollution source. Students will relate how monetary benefits, risk and environmental concerns are factors in business decisions. Disposal of chemicals is expensive and an unscrupulous corporation can save money by dumping illegally. Dumped chemicals seep through the soil and contaminate ground water. Wells are periodically tested to ensure a safe water source.
Any sampling technique has an element of randomness.
It is possible to get the same seed twice. They can retest a well if they think the sample was inaccurate. The student groups are models of environmental firms that work for government and industry groups who find and clean-up spills. They have to make a profit to stay in business. The fewer samples they have to take to correctly find the source of a spill, the more money they will make.