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EcoColumn Weekly Data Log

Created By: Jessica Stewart
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EcoColumn Weekly Data Log

Date of observation
: 1-29-13

Date of previous observation: None

Qualitative Data:
descriptions of what you see:
soil chamber: Moist, damp soil with no worms visible

compost chamber: Damp, moist with mold developing

aquatic chamber: Plant has air bubbles along its leaves and stem

images of your system (upload to MyFiles; Images: or Videos before inserting into this document):
soil chamber:

compost chamber:

aquatic water chamber:

Quantitative Data
soil chamber
temperature: 23 degrees celsius

% moisture: 8%

compost chamber
temperature: 22.2 degrees celsius
pH: 7.1
% moisture:  -5%

water water chamber
temperature:20.8 degrees celsius
pH: 6.7
dissolved Oxygen (DO) mg/L or ppm: 5.8
Ammonia ion concentration mg/L or ppm: .1 mg/l
Nitrate ion concentration mg/L or ppm: 7.3

Chloride Ion concentration mg/L or ppm: 83.2

Any other requested quantitative test results:

How accurate was (were) your prediction(s) from last week?


Describe how far off you were and hypothesize why.


What observations were of the greatest interest or concern to you this week?

We need our dissolved oxygen content to increase in order to feel confident in putting our animal into the ecosystem.

What adjustments did you make to address your concerns?

We are going to wait until the DO content increases before we add our animal.

What do you predict you will observe next week because of these adjustments?

Hopefully an increased dissolved oxygen content so we can add an animal.

Any real world application to what you saw this week?
We saw how the amount of different chemicals and minerals in the water affects the well being of the animals.

WQI Data Table











 Weighting Factor










pH unit 










Total Solids 






 Dissolved Oxygen








 mg/l NO3-N




 Fecal Coliform


 CFU/100 mL




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