Given that everyone lives in a watershed and that water is a fundamental life sustaining
resource, we will investigate ways to look at surface streams for quantity and quality of
this vital resource. We will construct a longitudinal profile or transect of a tributary
stream to the Potomac River and test the water quality.
• Water Test kit
• Instructions from notebook
• Data sheets from notebook
• Pen or pencil
PLEASE BE CAREFUL AT THE FIELD SITE SO WE MINIMIZE OUR IMPACT. PLEASE DO NOT STEP IN THE
WATER. PLEASE WORK WITH A PARTNER
- Upon arrival at the stream you and your partner should select a section along the stream
about 1-2 meters in length for your analysis.
- Prepare a sketch map of your section of the stream on the paper provided. Please note
your names on the sketch map as well as the names of the people working on either side
of you. This is so we can put the sketch maps together in the proper sequence.
- A sketch map does need to be drawn exactly to scale but noting measurements, direction,
etc. is very helpful.
- Prepare a second sketch of the surrounding environment of your section of the stream.
We are not judging artistic talent but the reliability of the information. Please note
your names on the sketch map and the orientation so we can put these together as well.
- Take your water sample, complete the water quality tests, and record your data on the
Click here for Data Sheet
On separate sheets of blank paper, have students sketch Stream Environment and
a map of Stream Segment.
Click here for Phosphate
here for Temperature Procedure
Click here for Turbidity
Click here for Dissolved
Click here for Nitrogen Procedure
Click here for pH
Click here for Coliform
Click here for Biochemical Oxygen Demand
Field Work (Adobe PDF document)