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Linden School District April, 1995 Site Specific Safety Plan Well Installation WES Project No 4062-R Drilling Safety The following safety measures must be followed during drilling/boring activities 1 Underground utilities such as gas and water mains and electrical lines should be located prior to drilling 2 The presence of underground structures such as crypts, tanks, vaults, etc should be determined 3 Drill rigs should not be positioned within three feet of excavations where caving might occur 4 Overhead clearance of masts, kellys and other structures should be pre-determined S Drilling rigs should not be erected within ten feet of overhead power lines 6 The potential for the emanation of toxic and ignitable vapors during drilling is possible Therefore, monitoring for suspected contaminants and/or combustible vapors is required Drilling activities should be secured and sources of ignition secured if combustible vapor levels in excess of 10% of the LEL are encountered 7 Set brakes and chock wheels of portable rigs prior to operation 8 Loose clothing and long loose hair should not be worn in the vicinity of rotating augers, kellys or other equipment 9 Guards and drive shields should not be removed 10 Exhaust from engines or other combustion units should be directed away from the work area 11 Hearing protection must be worn at all times during operations 12 Since recovery of the sampler encompasses repeated manipulation of the drill rig and sampler, workers are alerted to exercise extreme caution while performing these tasks 13 Most tasks involving the drill rig and sampling devices are repetitive and extra care should be taken to protect hands and fingers while working with heavy machine driven equipment 14 No worker shall handle soil samples or cuttings without wearing the proper protective equipment