Dissolved Oxygen Analysis
121% Increase in Oxygen Concentration*
Re: Certificate of Analysis
Results of Analysis for samples received 3/18/99, for testing as requested
Dissolved Oxygen
(DO) by EPA 360.1
Matrix: Water
Date Sampled 3/18/99
Lab#
Sample ID
Concentration
Unit
Influent Municipal Water
90974
Coeur d'Alene drinking water (0.25 mg/l Cl
2
)
3.60
mg/L
PW1 Ozonated Water
90971
STAGE 1 - Immediately after O
3
8.00
mg/L
90972
STAGE 1 - 5 Minutes after O
3
7.95
mg/L
90973
STAGE 1 - 10 Minutes after O
3
7.95
mg/L
* Results may vary according to influent water source
