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qualified. Provisions of this SSP are mandatory and all personnel associated with onsite activities will adhere strictly hereto. 3.0 JOB HAZARD ANALYSIS Hazards likely to be encountered onsite includeme � inithoequipttent, objectsse commonly encountered when operatinga or or machinery. al such as the danger of falling Simple precautions will reduce or eliminate risks associated with operating such equipment. A qualified drilling contractor will be employ'd to deliver and operate all drilling equipment. Only qualified personnel will have any contact with this equipment. All. onsite personnel, including the drilling contractor and his employees, will be required to wear hard hats when ntin close s will proximity to drilling equipmenttohandlingasamplesng g to prevent be worn by persons collecting exposure to contaminants. Gloves will be changed between samples, and used ones discarded, to avoid cross- worn if contamination. Proper respiratory equipment will be as vapor contamination levels onsite exceed action levorgorganic determined using a Photo-Ionization Detector onste(smoking, open Vapor Analyzer (OVA) . Furthermore, to nsvent accidental flame, or sparks will be permitted, p ignition of gasoline contamination. All per shall also adhere to the safety procedures and requirements of Mobil Oil Corporation. 3_1 sk sses men ummar Exposure to chemicals anticipated onsite asmajolenes (BTX) , Y contaminants, including benzene, toluene, ethylbenzene, gasoline fuel hydrocarbons, and tetraethyl lead, represents a hazard because th y arab moderately to old extremely toxic and ly Limit Values (TLV's) , Short Term Exposall Limits (STELms) ' most are highare and Toxicity Levels (LD50, oral-rat) , in mg/kg (pp ) , listed below: gMaou nV ST onte TnxicitY Skin C 10 25 4894 Benzenes 100 150 5000 - Toluene 100 150 4300 - Xylene - - 0.1 Tetraethyl lead - Benzene is considered an extreme cancer hazard. Applicable MSDS form s. are included in Appendix C. -.