HomeMy WebLinkAboutDU20 Email Summary 07182024From:Charles Connolly
To:Ota, Christopher A CIV USN NAVFAC SW SAN CA (USA); colin.cummings@iem.com
Cc:Chris Kuhlman; Max Ford; Mason Baker
Subject:[Non-DoD Source] Daily Update 7/22
Date:Monday, July 22, 2024 11:27:09 PM
Good morning,
Please find below an update of events for the day:
CTEH performed roaming air monitoring and analytical sampling overnight and
throughout the day.
At the time of this update, there were 148 observations for PM10
PM10 concentrations ranged from 0.007 to 0.052 mg/m3
Monitoring for PM10 will continue into the night and overnight as well.
The 24-hr TWA (from 7/21 to 7/22, 8am-8am) for PM10 concentrations from the
DustTraks are as follows:
Around the immediate vicinity of the hangar (DU1-DU12) ranged from 10 to 19
µg/m3
Around the outer perimeter and community (DU13-DU21) ranged from 12 to 28
µg/m3
Two community samples from AS020 were delivered to the lab today for analysis.
In addition, we received analytical results for the following:
Community sample taken at AS020 on 7/18 did not detect any asbestos.
Regards,
Charles Connolly
Director, Government Services
CTEH, LLC
Office: 501-801-8500 | Mobile: 832-917-9742
Emergency Response 24-Hour Hotline: +1(866) 869-2834
cconnolly@cteh.com |www.cteh.com