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Knowing Endangerment - Hanford Challenge

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had picked up since the 11:00 am exposure) on a completely different job at U-108. 124 Despite<br />

Lewis‟ repeated requests, the 1:00 pm U-Farm monitoring results mentioned in the Command<br />

Control Center log were not and could not be produced because the IHT that had taken and reported<br />

the measurements had never recorded them by uploading them into the Direct Reading Instrument<br />

database.<br />

Herein lies a major failing in CH2M Hill‟s Industrial Hygiene exposure monitoring program. DOE<br />

and CHG have procedures detailing Industrial Hygiene monitoring procedures, especially following<br />

an exposure to toxic chemicals that results in the need for medical attention. Yet despite the<br />

existence of these procedures, CHG has no mechanism for enforcing them, and they appear to be<br />

routinely disregarded with little to no consequences, as happened in Mr. Lewis‟ case.<br />

In an ideal situation, the IHT who reported to the site of Lewis‟ exposure would have measured the<br />

contaminants with a Photo-Ionization Detector (which is a Direct Reading Instrument), an ammonia<br />

reader (Manning) and a combustible gas meter. The procedure calls for the IHT to download the<br />

information into the DRI database, and then given the exposure records to the affected worker within<br />

15 days as required by OSHA 1910.1020. 125<br />

Prior to going out on any job, industrial hygiene technicians calibrate their instruments to ensure<br />

accuracy. This calibration information (e.g. the calibration gas) is recorded and entered into the<br />

database. When actually measuring, the IHT must record the time and location at which the<br />

measuring occurred. This should be done on standardized DRI forms, but many <strong>Hanford</strong> IHT‟s jot<br />

down their locations and the time in little spiral notebooks. An IHT may take several readings<br />

throughout the day or over several days, and all are stored in the Direct Reading Instrument itself.<br />

The IHT then connects the instrument to the database via a USB port, at which time all readings are<br />

uploaded and stored in the database and deleted from the instrument. The database automatically<br />

assigns a chronological number to the various DRI readings, and the IHT must then fill in the<br />

additional information such as calibration and location information. Besides uploading the<br />

monitoring data in to the database, the only other way to remove the information from the DRI is<br />

manually.<br />

The lack of a DRI from the 1:00 reading at U-111, coupled with the fact that there is no break in the<br />

number sequence of the DRI database, suggests that no records were ever destroyed in Mr. Lewis‟<br />

case. Instead, no records were ever created. Without the recorded data to back up the exposure<br />

monitoring, many questions also remain:<br />

What instruments did the IH Tech use to monitor? Were they the right instruments for the<br />

conditions?<br />

For what chemicals was the IH Tech monitoring? Were they the same type of chemicals<br />

emitted from that particular tank? Was tank characterization information reviewed prior to<br />

taking measurements?<br />

Where exactly did the IHT monitor? Was it at the source or in the area? What was the exact<br />

time?<br />

124 CHG, IH DRI Survey, ID # 02-0011, Jan. 16, 2002, at 3:10 pm.<br />

125 29 CFR 1910.1020(e)<br />

27

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