On 7/28/03 Wheelabrator became aware that a TN [Texas Nuclear] Level
Gauge,
Cs-137 100 mCi [milli Curie] [Model Number: 5197] SN # B728 (SS&D No. TX634D119B) had gone missing. Plant was in shutdown and work was being performed on the associated hopper. The
gauge was removed not following standard procedure. A search of the premises was conducted with negative results. A consultant was hired, and located the
gauge in a scrap metal pile on the morning of 7/30/03. The shielding was partially melted away, it was surmised that the
gauge may have passed through the boiler. The consultant performed radiation surveys and placed the
gauge in a metal container in the storage area. The manufacturer was contacted, arrangements will be made to return the
gauge.
Cause description: Gauge removed from frame to accommodate work taking place on hopper (steel replacement).
Precipitating factor: Not secured in storage area; typically used a secure holding area prior to shipping/installation.
State Event Number: MA 03-0023
Wheelabrator is located at 100 Salem Turnpike, Saugus, MA.
- * * UPDATE FROM IANNACCONE TO CROUCH ON 9/03/03 * * *
On July 30, 2003, gauge was located: casing intact, Pb [Lead] shielding melted. Secured, survey. Leak test results SAT, dose assessment for members of public SAT, shipped to [manufacturer], and staff was re-trained.
Notified R1DO (Henderson) and
NMSS EO (Broaddus).