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a sr <br /> a <br /> Golden Grain Company <br /> June 5, 1989 <br /> 202/799-5045.01 <br /> 6. The presence or absence of explosive vapor must be de- <br /> termined before entering any confined space. If <br /> explosimeter readings are greater than 10% of the lower <br /> explosive limit (1.4% LEL) , confined spaces must not be <br /> entered. Note that the accuracy of explosimeters is <br /> compromised when used in atmospheres that contain less <br /> than 19.5% oxygen. <br /> 7. Field personnel using any process chemical must review <br /> the Material Safety Data Sheet (MSPS) supplied by the <br /> specific manufacturer prior to use, and follow the <br /> recommendations for safe use and first aid (if neces- <br /> sary) . MSDSs must be attached to the inside back cover <br /> of this site safety plan, on an as-used basis (see <br /> Appendix D) . <br /> a;. The site will be secured with fences or warning signs <br /> posted to prevent the exposure of unauthorized, <br /> unprotected People tc site hazards. <br /> 9. No jewelry will be permitted during drilling opera- <br /> tions. <br /> 10. A safe distance will be maintained from drilling <br /> operations. <br /> 11. All outside doors in the warehouse must remain open <br /> during all drilling operations to insure cross venti- <br /> lation and prevent accumulation of harmful vapors. <br /> (open eaves running the length of the building on each <br /> ----- - - - - - --- - side and-various unsealed seams in the corrugated metal <br /> 7 <br /> `y GROUNDWATER <br /> TEmiNOLOGY.INC. <br />