Document k6X91b3jex2MGkaxGqRLjByJD
Shell Oil Company Shell Chemical Company
Interoffice Memorandum
AUGUST 5, 1987
FROM:
H.F. ELY, SENIOR SAFETY INSPECTOR, HEALTH & SAFETY DEER PARK MANUFACTURING COMPLEX
TO: J.W. OVERMAN, PROCESS MANAGER, CAT CRACKING & GAS DEER PARK MANUFACTURING COMPLEX
SUBJECT: MONITORING RESULTS FOR INORGANIC LEAD AND HEXAVALENT CHROMIUM DURING ABRASIVE BLASTING AT CC&G
Attached are updated industrial hygiene monitoring results for total dust, inorganic lead and hexavalent chromium which were collected downwind of abrasive blasting at Cat Cracking & Gas. The sampling results may be compared to the following exposure guidelines:
Eight-hour Time-weighted Average
Inorganic Lead Hexavalent Chromium Total Dust
0.05 mg/m3 0.05 mg/m3 10.0 mg/m3
All of the area samples were positioned approximately 50 feet downwind of the blasting and the results were below the exposure guidelines for inorganic lead, hexavalent chromium, and total dust.
These results should be posted in an area accessible to the personnel who work in the Cat Cracking and Gas areas.
If you have any questions, please call me at extension 7710.
//J.
H.F. El
HFE/md
Attachment
cc: W.B. Austin A.F. Schmit P.M. Spicer ECB Satellite HFE Chron
CHBT8721706
DPMC-05169
LAM 008666
QCO
MONITORING RESULTS FORM
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