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September 5.2001 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 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. 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 and steel- toed shoes when in close proximity to drilling equipment. Latex 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 a FID. Action levels requiring respiratory apparatus will be 5 ppm, in the breathing space. Furthermore, no on-site smoking, open flame, or sparks will be permitted in order to prevent accidental ignition. Risk Assessment Summary: Exposure to chemicals anticipated at the site includes: Tetrachloroethylene (PCE). This chemical represents a hazard because it is moderately to extremely toxic and is considered by the National Institute for Occupational Safety and Health (NIOSH) to be a potential occupational carcinogen as defined by the OSHA carcinogen policy [29 CFR 1990]. Threshold Limit Values (TLV's), Short Term Exposure Limits (STEL's), Toxicity levels (LD50i oral-rat), and immediately dangerous to life and health (IDLH) levels, all in mg/kg (ppm), are listed below: Compound TLV m STEL (ppm) Toxicity (ppm) IDLH (ppm) PCE 25 100 LC50 4,000 500 No significant exposure to dust or vapors is anticipated, however, all personnel will be advised to avoid generating dust or breathing dust. Also, all personnel will be advised to wear gloves and avoid inadvertently ingesting soil from their hands. Washing and washing of clothing after the project is advised. Exposure Monitoring Plan: A Hydrogen flame-Ionization Detector (FID) will be used to monitor vapor concentrations around each drilling location. Personal Protective Equipment: Personnel on site will have access to respirators with organic vapor and particulate cartridges. Replacement cartridges will be available on site as needed. When handling samples, the on- site geologist and technicians will wear latex gloves. Hard hats and steel-toed shoes will be worn by all personnel on site when in proximity of drilling/heavy equipment. EzC Remediation,LLC A-2