ARCHIVED REPORTS_XR0012619 - Laserfiche WebLink

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A} Combustible Gases and Vapors Potentially explosive concentrations of gases and vapors Will be monitored at least once every 15 minutes sampling activities using a combustible during any time the concentration exceeds 2Q$ Of t the lower explosive limit (LEL), activities will stop and the area .„ will be evacuated until gas levels have been reduced to less than 20$ of the LEL and the source of combustible gases vapors has been determined. or H} Total Or anic Va ars A direct reading photoionization detection (PID) meter (HNU PI 101 or equivalent) will be used to monitor the - concentrations of organic vapors in the work area. Measurements will be taken at least once every 15 during surface and subsurface sample collection. minutes The meter will be calibrated for benzene. ThTotal organic vapor measurements will be used to determine the appropriate levels of respiratory protection and conditions for site evacuation. Total organic vapor concentrations in the workers breathing zone in excess of 10 ppm above background will trigger an upgrade from level D to level G protection. n 5Q ppm will stop reduced to below 250 ppm, Breathing zone concentrations in excess of 2 the work o -site until the work zone concentrations are EMPLOYEE TRAINING AND INFORMATION Prior to site activity, waterwork will conduct training for all site personnel without a trainin course. previous documented hazardous waste g The training objectives: will have the following Ensure that workers are aware of tneY' may encounter, p©tential hazards ° Provide the knowledge and skills necessary to perform the work with minimal risk to workers health and safety. ' Familiarization with the Site Safety plan and site-specific requirements. } n;