Testing the Waters

TESTING THE WATERS

Your Name: ______

Lab Group Members: ______

Directions: Working as a group, you must test 24 wells (three at a time) to determine how far the mercury contamination has spread in the aquifer below Silver oaks. You will use this information to create an underground map of the contamination plume.

Procedure: Place 5 drops of the well water you have chosen into a cup on the SEPUP tray. Add 1 drop of Universal Indicator. Using the chart on page A-114, record the color, concentration range and code for each well you have tested. Use the data table below to record all of our information.

Well Selection Table:

Well Number Reason for choosing well (Be Specific)

Well Testing Results:

Well Number SEPUP Cup Color Concentration Code Number Range 1

Well Number Reason for choosing well (Be Specific) Well Testing Results:

Well Testing Results: Well Number SEPUP Cup Color Concentration Code Number Range 1

Analysis Questions:

1) Describe what you determined is the source of contamination. Where did it begin and where is it spreading?

2) Is there a direction of contamination flow? What is the direction? Is there something that is causing this contamination flow?

3) Complete the plume map. I will give you a copy of Silver oaks.