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�.. ..i l r'l �J�/� OPM utilized by all on-site personnel. Prior to beginning work, the SSU Q7 fAWUWNMENTAI training session to assure that all are aware of safe work practices. In the training session, personnel will be made aware of hazards at the site and will utilize Material Safety Data Sheets for information on compounds to be encountered. Phil Goalwin will also be responsible for keeping field notes, collecting and securing samples, and assuring sample integrity by adherence to Chain of Custody protocol. All on-site employees will take reasonable precautions to avoid unforeseen hazards. After documenting full understanding of the SSP, each on-site employee will be responsible for strict adherence to all points contained herein. Any deviation observed will be reported to the SSO and corrected. On-site employees are held responsible to perform only those tasks for which they believe they are qualified. Provisions of this SSP are mandatory and all personnel associated with on-site activities will adhere strictly hereto. Job Hazard Analysis: Hazards likely to be encountered on-site include those commonly encountered when operating any mechanical equipment, such as the danger of falling objects or moving machinery. Simple precautions will reduce or eliminate risks associated with operating such equipment. A drilling contractor has been employed to drill and operate all drilling equipment. Qualified personnel only will have any contact with this equipment. All on-site personnel, including the drilling contractor and his employees, are required to wear hard ` hats when in close proximity to drilling equipment. Latex sampling gloves will be worn by persons collecting or handling samples to prevent exposure to contaminants. Gloves will be changed between samples, and used ones discarded, to avoid cross-contamination. Proper respiratory equipment will be worn if vapor contamination levels on-site exceed ` action levels as determined using PID. Furthermore, no on-site smoking, open flame, or sparks will be permitted to prevent accidental ignition. Risk Assessment Summary: Exposure to chemicals anticipated on-site include volatile aromatics such as benzene, toluene, xylene, and ethylbenzene. These chemicals represent a hazard because they are moderately to extremely toxic and highly flammable. Threshold Limit Values (TLV's), Short Term Exposure Limits (STEL's), and Toxicity Levels (LD 50, oral-rat), all in 6. mg/kg (ppm), are listed below: Compound TLV STEL Toxicity Benzene 10 25 4894 Toluene 100 150 5000