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Water Analysis

Assessment

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Activity

Level of Competence

Points

Measure the temperature, pH, turbidity, and dissolved oxygen (four indicators of water quality) of water samples

10 points: measure all four indicators reproducibly

8 points: measure 3 of the 4 indicators reproducibly

6 points: measure 2 of the 4 indicators reproducibly

4 points: Measure 1 of the 4 indicators reproducibly

2 points: measure all 4 indicators once

 

 

Assess the quality of a water sample on the basis of specific criteria including pH, temperature, turbidity, and concentrations of dissolved substances.

10 points: States the range of values each of the four indicators would fall in if the water is considered clean water (and include a reference from which these standard values were obtained) and then compare the measured quantities with these acceptable standards.

 

 

Compare the quality of water samples from the same source over time (if time permits)

10 points: Post data on the WWMD site from three or more samplings and write a report comparing how the indicators changed over time.

6 points: Post data on the WWMD site from two samplings and write a report comparing how the indicators changed over time.

4 points: Post data on the WWMD from two or more samplings and record the data in tabular form with no written analysis

 

 

Compare the quality of

water samples between different sources

10 points: Select at least three other site in addition to your site and compare the values of the four indicators to each other and to clean water standards.

7 points: Select two other sites in addition to your site and compare the values of the four indicators to each other and to clean water standards.

4 points: Select one other site in addition to your site and compare the values of the four indicators to each other and to clean water standards.

 

 

Summarize community water quality reports over 3-5 years and determine if their water supply is safe or needs remediation.

10 points: Succinct and well-developed written summary with evidence to support the conclusion regarding water safety.

6 points: Well-developed written summary but lacking strong evidence to support conclusion regarding water safety.

3 points: Well-written summary but no support of conclusion regarding water safety.

 

 

Propose sources of pollutants in water supplies

 

 

10 points: Identify 5 different pollutants and their sources

8 points: Identify 4 different pollutants and their sources

6 points: Identify 3 different pollutants and their sources

4 points: Identify 2 different pollutants and their sources

2 points: Identify 1 pollutant and its source.

 

 

Investigate methods to clean up polluted water supplies

 

10 points: Presents methods to clean up at least three pollutants including a rationale as to why the methods would be effective.

7 points: Presents methods to clean up at least two pollutants including a rationale as to why the methods would be effective.

4 points: Presents methods to clean up at least one pollutant including a rationale as to why the method would be effective.

3 points: Presents methods to clean up at least three pollutants but without a rationale as to why the methods would be effective.

2 points: Presents methods to clean up two pollutants but without a rationale as to why the methods would be effective.

1 point: Presents a method to clean up one pollutant but without a rationale as to why the method would be effective.

 

 

Analyze strategies to prevent pollution in water supplies

 

10 points: Presents at least 3 different strategies for preventing pollution with rationales as to why these strategies would be successful

7 points: Presents 2 strategies for preventing water pollution with support as to why these would be effective.

5 points: presents one method of water pollution prevention with support as to why it would be effective.

1-3 points: Presents one to three methods of water pollution prevention with no support as to why they would be effective.

0 points: Does not present any water pollution prevention strategies.

 

 

Total Points Possible

 

80 points

Note: Point values can all be doubled if you want this project to contribute more to the overall course grade.