Asbestos Program Exposure Assessment Activities 2014 to Present

All identified office locations have been cleaned, floors sealed, and floor mats provided to address any wear from chair casters on floor. Additional locations continue to be identified as offices are moved or re-arranged, and requests for floor sealing are up to date with no pending work activities. In the summer of 2014 additional air monitoring was conducted on trained Housekeeping employees to verify the procedures developed and assessed in 2013 were still effective.

Updates Since 2013
Date Location(s) Type Asbestos Levels COC & Report
June 2014 Ives, Carson, Art, PE

Personal air samples of Housekeepers performing historic dust cleaning of offices

No Elevated levels for a full shift of office cleaning first by wet wiping then HEPA vacuum

Housekeeping Staff Air Sampling (PDF)

October 2014 Carson

EH&S was asked if smaller Hutchins classrooms/offices could be sealed due to sliding non caster chairs. Floors were not worn to tile, but were cleaned and sealed

   
March 2015 Stevenson

New concern raised about possible settled dust containing asbestos above non-asbestos drop ceiling tiles. When limited renovation was completed in area where concern was raised abatement contractors doing floor tile removal were also instructed to vacuum tiles and wet wipe t bar above ceiling.

Air sampling showed no elevated levels from workers.

Contractor Air Samples (PDF)

August 2015 Stevenson

Water damaged and out of place tiles requested to be corrected. Internal trained staff removed all stained or damaged tiles and replaced with new tiles without any vacuuming or wet wiping to assess worst case. Both personal and area samples were collected by TEM. Once repairs were made all ceiling tiles were vacuumed and t bar wet wiped

No asbestos detected.

3004A Air Monitoring (PDF)

May 2016 Stevenson

Personal air monitoring of light changing and ballast changing activities throughout Stevenson

Measuring all fibers, no elevated levels for a full shift, which includes over 32 fixtures

Personal Exposure Assessment Report (PDF)

Light Fixture Procedure (PDF)

May 2016 Stevenson

Based on the continued concern related to the electrician activities due to the 0.009 fibers/cc for an 8 hour time weighted average result obtained as compared to the Cal/OSHA Permissible Exposure Limit of 0.1 fibers/cc, we continue to go to every possible extent to reassure through scientific results that these operations not only meet, but greatly exceed ALL regulatory requirements. To this end, the 0.009 fibers/cc run by NIOSH 7400 PCM as required by Cal/OSHA for an exposure assessment (total fibers that do not distinguish between asbestos and other particles) were run by NIOSH 7402 TEM (identifies only asbestos fibers) and the result of non-detect for asbestos is attached.

In summary, activity was conducted in locations selected by the electricians for testing, which included 11 fixtures directly adjacent to the location of the highest settled dust levels, and with EH&S falsely creating a worse than normally possible stagnant air environment by doing all work that day in a non-ventilated enclosure, the results still show NO asbestos detected.

Non detect for asbestos

Area air sample chain of custody (PDF)

Air sample report (PDF)

May 2016 Stevenson

Personal air monitoring of variable air volume (mixing box) repairs above the Stevenson ceiling. This task is considered more disruptive to dusty surfaces than light changing, ballast replacement or other related lighting and or electrical work above the ceiling.

No Elevated levels. Because there was a detection for total dust, samples were analyzed to specifically identify asbestos fibers, and all results were non detect for asbestos.

Personal Exposure Assessment Report (PDF)

Above Ceiling Work Procedure (PDF)

June 2016 Stevenson

Personal air monitoring of above-ceiling telecommunication bundles. This task is considered to be the most potentially disruptive. The pull was the longest possible in the building extending from Room 1002 all the way to the second floor telecom room. The work was done by non telecom personnel that had trouble pulling the cables, which included cables dragging on ceiling tiles, workers leaning onto and against above-ceiling surfaces.

No Elevated levels. Because there was a detection for total dust, samples were analyzed to specifically identify asbestos fibers, and all results were non detect for asbestos.

Personal Exposure Assessment Report (PDF)

Above Ceiling Cable Pull Procedure (PDF)

September 2016 Stevenson

As part of Forensic Analytical Consulting’s overall monitoring and evaluation scope of work comparison samples were collected of settled dust. The dust was collected from Stevenson and from Person theatre. These buildings were selected as both having operable windows with Stevenson containing asbestos in the building materials and Person not containing any asbestos. The results and report are attached and concluded that the greatest chance of any asbestos in settled dust is the same location as the heaviest visible dust.

While widely varying levels of asbestos fibers much smaller than those regulated by OSHA, most samples above regulatory size were non detect for asbestos. While no activities have revealed any exposure during identified and assessed tasks, office occupants may place work orders to have their office cleaned by trained Housekeeping personnel if they desire.

Evaluation of Settled Dust (PDF)

July 2017 Track Stadium

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Report of Track Discovery (PDF)