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Ik 1 �rD 88168E -9- May 19a9 e Weather conditions have the potential to disrupt the project in that if it is raining, drilling and sampling lin should be postponed. It is unlikely that ect. Temperature temperature conditions would preclude completion of the prof Level If ranges expected to be encountered are 85°F to 950F. worker workers will be required to an G equipment and the temperature '.srestmore in theshadeand drink fluids. take 10 minute breaks every hour, Underground utilities should not be encountered butdrilling drllnshouthe ld carefully. ld The 4-inch water main and electric conduitexposed surface utilities expected in the site area. excavation are the only sub 8.0 RISK ASSESstYKHT The potential for adverse health or safety Concentrati ns of risks to the on-site workers or the immediate surrounding area are low. hazardous substances encountered in pre have been vious assessmeb�sericountered t the eespecially low and it is unlikely that high concentrations will atmospheric dispersion of considering the fact that the site is outside and atmrp c ontaminants will be significant. Special arrangements for possible neighborhood evacuation should not be required. No unauthorized personnel may be p ermitted in the work zonas during e site investigation. If local residents, reporters, etc. enter the work site, th rocedures have been established they should be informed that health and safety p to protect both the workers and the public. If they refuse to leave,, the local ment should be contacted. police depart 9.0 EXPOSURE MONITORING assessment. The pID will be in continuous use A during site stances likely to be ionization constants nzene- for all of the sublene-SeSbeV)tare de all within 9.24eV, ethylbenzene-8.76eV, to e than . 210.6eV)eV, and xylf the organic vapors in thc- the detecti+�n range of the PID (less to be breathing zone detected by-the--P excee d 5 m above background levels measure, prior to excavation and up-wind of the site) for more than five.minutes----- -- the ersannel in the contaminated zone will don Level G equipment, including p in the contaminated respirators. Level G equipment will be worn continuously round. zone until such time as the PID concentrations are below S ppm above background.