SR0084289 (3) - Laserfiche WebLink

Home Browse Search

Health and Safety Plan June 16, 2021 Page 2 2.1.1 Ambient Air Monitoring/Respirator Requirements Benzene, a constituent of gasoline, will be used as an indicator parameter for ambient air monitoring. Because benzene is a suspected carcinogen and, therefore, highly regulated, it will be useful as a conservative indicator parameter. The following discussion assumes that exposure to benzene is a possibility; thus, a safety measure for other potential air-borne contaminants is achieved. a. Breathing zone vapor at detectable concentrations at the drilling area greater than 1.0 parts per million (ppm) for five minutes, as detected by PID, requires site personnel to use a respirator with organic vapor cartridges while working in the exclusion zone. As a reference, the OSHA- PEL for benzene is 1.0 ppm. b. Breathing zone vapor at detectable concentrations requires site manager to monitor the site perimeter (concentrating in the down wind direction). c. Breathing zone vapor concentrations that reach or exceed 10 ppm during drilling activities at the drilling area, as detected by the PID, requires site personnel to use a respirator with organic vapor cartridges while working in the exclusion zone. d. Breathing zone vapor concentrations that reach or exceed 50 ppm at the drilling area, as detected by the PID, requires site activities to be stopped until concentrations decrease. Site manager should continuously monitor site perimeter. e. If breathing zone vapor concentrations are detected at the site perimeter, the site manager shall monitor the perimeter at 30 minute intervals. f. If the vapor concentrations continue to reach or exceed a value of 10 ppm at the site perimeter for 15 minutes, drilling activities shall be stopped. Appropriate regulatory agencies should be contacted (see contact sheet). Site manager shall continue to monitor conditions until levels are reduced to background conditions. 2.2 COVID-19 Due to the rapidly changing nature of best practices for enhanced protect from infectious transmission of COVID-19, the recommendations provided are guidelines and should be revised as-needed at the tailgate safety meeting prior to start of field activities. Generally, the following shall be followed:  Maintain a social distance whenever possible during the work.  Monitor fellow workers for outward signs of symptoms of COVID-19. Workers that are sick or show other visible signs shall be sent home.  Use gloves when passing equipment between workers.  Wear cloth or disposable face masks when required to regularly work inside the social distance. Follow recent guidelines provided by OSHA or other applicable regulatory body for similar work in addition to the above guidelines. 2.3 SKIN/CLOTHES PROTECTION Steel-toed boots and hard hats will be worn during all field activities.