Indiana Harbor and Canal Dredging and Disposal Project
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Dock Area PID Air Monitoring
Date Range
Start Date:
End Date:
Color Key
Color
Meaning
Result
Green
OK
VOC reading is less than 10 ppm.
Yellow
Warning
VOC reading is between 10 and 100 ppm.
Red
Alarm
VOC reading is over 100 ppm.
Measurements for VOC are in parts per million. (ppm)