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• Prepare a WC Accident/Incident Report and submit to HSO/HSC. The form can be found in Section 10.0. 6.7.4 Monitoring Guidelines Organic vapor and explosive gas monitoring will be conducted any time a team conducts intrusive activities. The SSO or assigned HST will be responsible for performing ambient air quality monitoring with an organic vapor detector and a combustible gas indicator approved by the HSO/HSC. Details concerning organic vapor monitors, combustible gas indicators and their calibration are given in Appendix C. Air monitoring will be performed continuously and recorded at 15 minute intervals during intrusive operations. All monitoring data must be entered on the project safety log forms. This information will be used to determine if personal protective equipment requirements should be modified. Because toxicity action levels are considerably lower than explosivity action levels, organic vapor monitoring will be conducted in the breathing zone of the workers closest to the source of contamination. The worker's breathing zone is defined as a 1 foot diameter sphere surrounding the worker's head. Explosivity will be monitored with the CGI set at a location close to and downwind of the source of emission. The alarm on the CGI will be set to sound at the action level. If the alarm sounds during monitoring, shut-down and evacuation procedures will be initiated immediately. 6.8 AREA CONTROL I Access to hazardous and potentially hazardous areas of spill sites will be controlled to reduce the probability of occurrence of physical injury and chemical exposure of field personnel, visitors, and the public. A hazardous or potentially hazardous area includes any area where (1) field personnel are required to wear respirators, or (2) excavating operations with heavy equipment are being performed. 80500000 HAHEALTH�FNIJISP April 21, I993 FEMA USrs Pmol G.mric HSP 18