Page iii of Attachment C 
ABSTRACT 
A walk-through industrial hygiene survey was conducted at the 
Genentech Research Laboratories in South San Francisco, California 
on April 8, 1980. This company is involved in research and develop- 
ment of recombinant DNA fermentation processes applicable to pharma- 
ceutical preparations. Assessments of control technology, including 
containment design, validation procedures, and work practices were 
made during the visit. Recommendations were made to strengthen speci- 
fic areas in order to minimize potential hazards to the worker. 
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