Air Sample Data

Air Monitoring Results 9-4-18 to 10-17-18

Perimeter Ambient Air Monitoring:

Five perimeter air samples (AA-1 through AA-5) with 24-hour flow regulators were collected at locations presented in the SMP. A summary of the TCE concentrations can be found here. All TCE concentrations were below the 1 µg/m3 threshold.

Air Monitoring in Worker Breathing Zones:

For any trench work greater than 36 inches, trench worker air monitoring was conducted. A summary of the TCE concentrations can be found here. Attached is a figure showing the sample locations, as well as a table summarizing the TCE concentrations. All TCE concentrations were below the 7 µg/m3 commercial threshold.

Since all future excavations will be shallower than 3 feet, all air monitoring will be discontinued, as per the SMP.


Air Monitoring Results 9-4-18 to 10-2-18

Following is a summary of the air monitoring conducted during the excavation of the storm drain at the Site.

Perimeter Ambient Air Monitoring:

Five perimeter air samples (AA-1 through AA-5) with 24-hour flow regulators were collected at locations presented in the SMP. A summary of the TCE concentrations can be found here. All TCE concentrations were below the 1 µg/m3 threshold.

Air Monitoring in Worker Breathing Zones:

For any trench work greater than 36 inches, trench worker air monitoring was conducted. A summary of the TCE concentrations can be found here. All TCE concentrations were below the 7 µg/m3 commercial threshold, with the exception of an exceedance on one day. The trench was subsequently ventilated prior to the workers entering the trench.


Air Monitoring Results 9-4-18 to 9-28-18

Perimeter Ambient Air Monitoring:

Five perimeter air samples (AA-1 through AA-5) with 24-hour flow regulators were collected at locations presented in the SMP. A summary of the TCE concentrations can be found here. All TCE concentrations were below the 1 µg/m3 threshold.

Air Monitoring in Worker Breathing Zones:

For any trench work greater than 36 inches, trench worker air monitoring was conducted. A summary of the TCE concentrations can be found here. All TCE concentrations were below the 7 µg/m3 commercial threshold, with the exception of an exceedance on one day. The trench was subsequently ventilated prior to the workers entering the trench.

Air Monitoring Results 9-7-16

09.07.2016

09.07.2016 (2)

This page is currently under construction. Please check back for information regarding air monitoring, soil quality, health & safety, and SMP compliance. Thank you for you patience.
  • Air Monitoring Results

    (brief description with a link to ENGEO's Website)
  • Remedial Measures

    (brief description with a link to ENGEO's Website)
  • Soil Screening/Sampling Results

    (brief description with a link to ENGEO's Website)
  • Health & Safety Procedure Summary

    (brief description with a link to ENGEO's Website)
  • SMP Compliance

    (brief description with a link to ENGEO's Website)