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Ground Zero Analysis, Inc. <br /> SITE SAFETY PLAN <br /> FACILITY BACKGROUND <br /> The site is operating as an aerial agricultrural chemical application service for many years. The <br /> facility formerly utilized a 10,000-gallon underground storage tank (UST) for the storage of avation <br /> fuel. The actual date of installation of the tank is not known. The UST was removed in May 1990. <br /> Very low levels of BTEX were detected in a soil and groundwater sample collected from the UST <br /> excavation. <br /> WORK PLAN <br /> Task One: Advance up to three (3) soil borings using a truck mounted Geoprobe 5400 direct <br /> push drilling rig to'idepths of approximately 15 feet below ground surface in the area of the former <br /> UST to determine current concentrations of residual soil contamination resulting from past site <br /> operations and to determine if groundwater has been impacted by an unauthorized release. <br /> Task Two: Collect sail samples from each boring at minimum 5-foot intervals for logging and <br /> submittal to a sta", rtified laboratory for analysis. Advance one boring to groundwater to collect <br /> a grab groundwater'sample for submittal to a state-certified laboratory for analysis. <br /> JOB HAZARD ANALYSIS"AND SUMMARY <br /> Chemical Hazards <br /> TASK(S) CHEMICAL PELISTEL/IDLH KNOWN SIGNS/SYMPTCM,S <br /> WATER; AER, CONCENTRATION <br /> 1,2 Benzene PEL 0.1 ppm (NIOSH)/ 2.1 ppb (water) Irritation of eyes, nose, <br /> 1 ppm (OSHA) respiratory sys; giddiness, <br /> STEL 1 ppm (NIOSH)1 14 ppb (soil) headaches, nausea, <br /> 5 ppm (OSHA) staggered gait, fatigue, <br /> IDLH 3,000 ppm anorexia, lassitude, <br /> dermatitis, human <br /> carcinogen. <br /> 1,2 Toluene PEL 100 ppm 2.1 ppb (water) Fatigue, weakness; <br /> STEL 150 ppm confusion, euphoria, <br /> IDLH 2,000 ppm dizziness, headache; dilated <br /> pupils, tearing, nervousness, <br /> muscular fatigue, insomnia, <br /> paresthesia, dermatitis. <br /> PAGE 2 <br /> 0 <br /> . 1 <br />