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Ground Zero Analysis, Inc <br /> i SITE SAFETY PLAN <br /> FACILITY BACKGROUND <br /> The site is currently vacant, however, construction is in progress During construction activities, <br /> one 7,800 gallon underground storage tank (UST) was discovered During initial tank removal, <br /> two 1,000 gallon tanks and one 7,500 gallon UST were found The additional tanks were <br /> subsequently removed Contents of the tanks are unknown, however, analytical results from the <br /> tank pit(s) and shallow groundwater samples indicated the presence of petroleum hydrocarbons <br /> WORK PLAN <br /> Task One: Advance three (3) soil borings using a hollow stem auger rig to depths of <br /> approximately 25 feet below ground surface in the area of the former UST to determine current <br /> concentrations of residual soil contamination resulting from past site operations <br /> Task Two: Collect soil samples from each boring at minimum 5-foot intervals for logging and <br /> submittal to a state-certified laboratory for analysis <br /> • JOB HAZARD ANALYSIS AND SUMMARY <br /> Chemical Hazards <br /> TASK(S) CHEMICAL PELISTELIIDLH KNOWN SIGNS/SYMPTOMS <br /> (SOIL, WATER, AIR, CONCENTRATION <br /> ETC ) -- - - <br /> 1,2 Benzene PEL 0 1 ppm (NIOSH)/ 0 024 ppm {water} Irritation of eyes, nose, <br /> 1 ppm {OSHA) <0 0025 ppm (soil) respiratory sys, giddiness, <br /> STEL 1 ppm (NIOSH)/ 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 0 80 ppm (water) Fatigue, weakness, <br /> STEL 150 ppm confusion, euphoria, <br /> IDLH 2,000 ppm 3 ppm [soEE] dizziness, headache, dilated <br /> pupils, tearing, nervousness, <br /> muscular fatigue, insomnia, <br /> paresthesia, dermatitis <br /> PAGE 2 <br />