Environmental Science – Lab Reports
Water Quality Testing
Lab Report Format and Requirements
▪ Purpose / Rationale
Short – small paragraph
Why are you doing this lab?
What is the problem/issue/situation you are investigating?
Answer this question: What is water quality?
▪ Background Information / Introduction
Should end up being ~ 3 pages in length
This section familiarizes the reader with the subject of the investigation
For each of the 10 water quality properties we testing you will provide this information:
– What is the water quality property you are testing for?
– Why is it significant? / What can it tell us about the water?
– What factors/activities can change this property?
Sources should be cited and referenced at the end of the report
▪ Materials / Equipment
What did you use to do the investigation?
– List everything!
– Use bullets, not sentences
▪ Procedure
How did you do the investigation?
List of steps that anyone could follow to complete the same investigation
– Step by step directions
– Number each step
– Write in 3rd person ( NO we, you, I )
The procedures given in the lab manuals should NOT be copied verbatim
Provide essential elements of the procedure; leave out trivial details
For this investigation, only include procedures for the 10 tests discussed in the introduction.
▪ Data / Results
What were your results?
Each assessment has its own chart/table (Physical, Chemical, Habitat, Biological)
List ALL data collected
All numbers must have appropriate units
DO NOT interpret the data – that occurs in the next section
▪ Conclusion / Discussion
Should end up being ~ 3 pages in length
You must discuss the results for each of the 10 tests identified in the introduction along with any other data/results that are noteworthy.
Divide the information up into these sections:
– Restate the test result.
– What does this test result tell you about the quality of the water?
– What factors/activities present in the area may be affecting this test result?
Thoughtfully interpret the data – draw upon information you presented in the introduction
▪ References / Bibliography
What sources did you use to write your background/introduction?
McCloud Run Field Trip
Water Quality Testing Equipment
|Test |Equipment |Directions |
|Temperature |Thermometer |In BLUE Packet |
|pH |pH Strips |On Tube |
|Turbidity |Turbidity Tube | |
|Dissolved Oxygen |D.O. Kit |In Box |
|Nitrate/Nitrite |Nitrate Strips |On Tube |
|Chloride |Chloride Strips |On Tube |
|Phosphates |Phosphate Kit |In Box |
|E. Coli |Coliform Bacteria Kit |In Green Packet |
|Flow Rate |Tennis Ball |In BLUE Packet |
| |Stop Watch | |
| |Meter Stick | |
| |Tape Measure | |
|Biological Assessment |Tweezers |In GREEN Packet |
| |Net | |
| |Plastic Tub | |
| | | |
|General Needs |Clipboards |
| |Waders |
| |Towel |
| |Lawn Chair |
| |Sunscreen |
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