This page contains the test results for recent sampling in Martin and Williamson Halls along with some additional pieces of information. All links are to PDF files.
TO: Employees in Williamson and Martin Halls
From: Mary Voves, Vice President for Business and Finance
Re: Additional Building Assessment
Date: June 1, 2018
The purpose of this memorandum is to provide you with additional information regarding the University’s planned response to concerns that have been raised related to the potential for mold in Martin and Williamson Halls. As I previously indicated when I met with staff on May 23, 2018, the University has taken numerous steps to date. Those have included: visual inspections, abatement of first floor men’s bathroom in Martin Hall, abatement of hallway in Martin hall, spore trap sampling, tape lift sampling carbon dioxide sampling, and Volatile Organic Compounds and mold derived Volatile Organic Compounds Sampling.
In addition to these actions, the University is bringing an external environmental consulting firm, Mountain Consulting Services, to conduct an independent evaluation. Mountain Consulting Services is currently preparing an assessment protocol. Mountain Consulting Services will be provided a summary of the concerns that were gathered as part of the building tour conducted with staff on May 29, 2018 and asked to evaluate those concerns as part of its work.
The results from testing that has been conducted to date, will be made available next week. I will be providing additional updates as more information becomes available.
Letters to Mountain Consulting Services about areas of concern in Martin and Williamson Halls:
Information from the EPA
Update: MAR/WLM Roofing Work Activities
During the week of October 1st, EH&S staff members have walked the entirety of MAR/WLM in the last two days using our volatile organic compound (VOC) handheld monitor. The EH&S department is actively sampling for Naphthalene, a binary polycyclic aromatic hydrocarbon (PAH) with our handheld detector. Naphthalene is a primary VOC indicator that is evident in oxidized bitumen, or roofing tar.
Naphthalene has a short-term exposure limit (STEL) of 15000ppb or 15ppm over a fifteen minute period and a time-weighted average (TWA) of 10000ppb or 10ppm over an eight hour period. Being a primary off-gassing component from oxidized bitumen, Naphthalene is a best indicator for measuring transient odors and other associated VOC's chemicals during our measurements. Reading from 10/3-10/4 have ranged from 40ppb to 167ppb during active roofing in various parts of MAR/WLM buildings. Currently, exposures to building occupants are well below acceptable limits during our read times.
As of October 4th, the EWU Facilities staff replaced all air handler filters in both Martin and Williamson Hall with a carbon-activated media filteration to help alleviate odors associated with the bitumous tar smell. End of day (Oct 4th) readings indicated a 50% air scrubbing of the air within the building. This will increase as more air is re-processed over the filter media. Measurements showed concentrations in the air handler mechanical rooms with active readings of 4-7 parts per billion Napthalene present - almost absent. As full roofing activities begin next week, odors and measurements are expected to rise, but not at levels previously experienced.
Concurrently, passive sampling also occurred in the 225 CAPS suite for residual off-gas components from firing of the roofing tar pots. Four gases were monitored for safety of individuals in near proximity to active work and air handling systems-MAR 225 is centralized in that regard.
Four indicating gases in MAR 225 are being monitored: Hydrogen Sulfide (H2S), flamamble gases, as Methane (CH4) for interference referencing, Carbon Dioxide (CO), and lower/upper limits for breathable oxygen content.
- H2S, is a primary odor factor for asphalt and roofing tars. While its presence is known by smell, the amounts present in the MAR 225 suite is below the detection limits of the passive detection meter, less than 0.1 part per million (ppm).
- Flammable gas detection has been found on 10/10 & 10/11 at peak measurements of < 0.05% of air collectively passing through the MAR 225 reception area. These two peak measurements are barely above threshold detection for the meter @ 0.01% flammable gas.
- CO was present at a limited but, peak concentration of 7ppm. This number is below STEL and TWA limits and is attributed to the propane firing of the tar pots. CO can be a resultant factor in some reported headaches.
- Ambient breathable oxygen levels remained a constant, at an atmospheric norm of 20.8-20.9%.
EWU EH&S will continue on-going air quality sampling. As reminder to all building occupants, the roofing contractor has retained an outside environmental consultant for constant monitoring of their employees. To the effect of current work being performed, work activities have been without incident, disregarding the extreme odors present with this type of work.
We look forward to seeing staff and students throughout the remainder of next week while sampling. Go EAGS!
Martin Hall Sampling Results
- MAR 114A VOC and MVOC sample results
- MAR 135 temperature, relative humidity, and CO2 levels
- MAR 135 VOC and MVOC sample results
- MAR 140 mold growth results
- MAR 151 temperature, relative humidity, and CO2 levels
- MAR 151G VOC and MVOC sample results
- MAR 158 VOC and MVOC sample results
- MAR 225 temperature, relative humidity, and CO2 levels
- MAR 228 VOC and MVOC sample results
- MAR 237 VOC and MVOC sample results
- MAR 249 VOC and MVOC sample results
- MAR 253 Spore Trap sample results
- MAR 253 VOC and MVOC sample results
- MAR 254 VOC and MVOC sample results
- MAR particle counts from 5/8/18, 5/15/18, 5/21/18, and 5/24/18
- MAR Spore Trap sample results from 007, 158, 254, and 254-8
- MAR Spore Trap sample results from 114 and 249
- MAR Spore Trap sample results from 151G, 135, 114, 228, 237, and 249
- MAR Tape Lift results from 158, 254, and 254-8
- MAR Tape Lift results from 114A, 135, 151G, 228, 237, and 249
- MAR 002 Colormetric VOC sample 10/11/18
- MAR 006 Colormetric VOC sample 10/17/18
- MAR 002 Colormetric VOC sample 10/23/18
- MAR particle counts from 10/29/18
- MAR & WLM particle Sampling 1/4/19
- MAR Air-O-Cell Sampling 1/4/19
- MAR & WLM Particle Sampling 1/4/19
- MAR Particle Counts 4/10/2019
- MAR Air-O-Cell Sampling 4/16/19
Williamson Hall Sampling Results
- WLM 232 formaldehyde sample results
- WLM 232 temperature, relative humidity, and CO2 levels
- WLM 232 VOC and MVOC sample results
- WLM 310 formaldehyde sample results
- WLM 310 VOC and MVOC sample results
- WLM 310 and 312 Particle Counts 10/17/18
- WLM 311B formaldehyde sample results
- WLM 311B temperature, relative humidity, and CO2 levels
- WLM 311B VOC and MVOC sample results
- WLM 314 formaldehyde sample results
- WLM 314 formaldehyde resampling results
- WLM 314 temperature, relative humidity, and CO2 levels (starting 5/17/18)
- WLM 314 temperature, relative humidity, and CO2 levels (starting 5/31/18)
- WLM 314 temperature, relative humidity, and CO2 levels (starting 6/7/18)
- WLM 314 VOC and MVOC sample results
- WLM 314A temperature, relative humidity, and CO2 levels (starting 6/7/18)
- WLM 314B temperature, relative humidity, and CO2 levels (starting 5/31/18)
- WLM 314B temperature, relative humidity, and CO2 levels (starting 6/7/18)
- WLM air clearance results from 3rd floor women's restroom and 3rd floor hallway
- WLM Ceiling Tile Test Results from 1st and 2nd Floors
- WLM particle counts from 5/8/18 and 5/15/18
- WLM Particle Counts from 10/29/18
- WLM Spore Trap sample results from 310, 311B, and 314
- WLM Tape Lift Results from 123, 125, and 232
- WLM Tape Lift results from 310, 311B, and 314
- WLM Tape Lift results from 311D and the 3rd floor main stairwell
- WLM Tape Lift results from 310A-C , 232, 311B and 314 from 8/23/18
- WLM Particle Counts from 3/29/19
- WLM 312 VOC's 3/22/19
- WLM Hall Air-O-Cell Sampling 3/06/19
- WLM 312B VOC's 3/14/19
- WLM Hall Air-O-Cell sampling 3-14-19
- WLM Hall Mold Analysis
- WLM Particle Counts 3/21/19
- WLM Air-O-Cell Sampling 4-10-19