IN THE MATTER OF:WATER QUALITY STANDARDS ANDEFFLUENT LIMITATIONS FOR THECHICAGO AREA WATERWAY SYSTEMAND THE LOWER DES PLAINES RIVER:PROPOSED AMENDMENTS TO 35 Ill.
Since 2003, I
have served as Head of the Aquatic Ecology and Water Quality Section within theEnvironmental Monitoring and Research Division, where I supervise a staff of ten persons.
DO was measured hourly using the YSI
Model 6920 or Model 6600 monitor.
The retrieved monitors were returned to the laboratory for data downloading, exterior cleaning,
servicing, and calibration of the DO sensors.
Table 1 in
ATTACHMENT 2 was generated comparing District DO data from January...
Allowed
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