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Indiana Harbor and Canal
Dredging and Disposal Project
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Air Monitoring Alarm Response

Air Monitoring Instrument
Thermo Scientific Model 5030 Sharp Monitor
Date and time of alarm
10/22/2024 9:45 PM
to
10/23/2024 11:00 AM
checked
Active contracting onsite
Air monitoring station
checked
M2
Alarm was caused by
checked
Other:
Unknown
Name of technician who responded to the alarm
Scott Peterson
Was an email sent to the site technician?
checked
No
Were dredging or construction occurring during the alarm?
Blank.
Were corrective actions taken?
checked
No
Description of action taken
During the period of time when the CDF contribution calculation was stopped due to a daylight saving time issue (10/9/2024 through 11/3/2024), we are now allowing the daily average of M1-M4 to be displayed on the website, shown in the screenshot below. On October 23, 2024, the daily average for M2 exceeded 50,