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i 6. L91 *kwo %doof YATIONAL AD%'ERTISINC CO'NPAN7'— ADDITIONAL SL BSCRFACE INN-ESTICATIOV HEALTH AND SAFETY PLAN 7.0 MONITORING PLAN This section of the HASP outlines monitoring strategies and analytical methods which will be employed as necessary to assess employee exposure to chemical and physical hazards. Monitoring will consist primarily of on-site determination of various parameters (airborne contaminant concentrations, heat stress effects, etc.), but may be supplemented by more sophisticated monitoring techniques if necessary. 7.1 AIRBORNE CONTAMINANT CONCENTRATIONS To assess the concentrations of airborne organic vapors that may be released during certain intrusive operations (drilling, groundwater monitoring, etc.) monitoring will be accomplished both in worker breathing zones and at the boundaries of the established controlled work areas. Monitoring will be conducted using the instrumentation specified in Table 7-2. TABLE 7-1 AIR MONITORING INSTRUMENTATION INSTRUMENT MANUFACTURER/MODEL SUBSTANCES DETECTED Photoionization Detector (PID) H -Nu PI -101 Chlorinated and aromatic (Required) Photovac MicroTIP hydrocarbons MSA Photon ThermoEnvironmental OVM Detector Tube Kit (Required) Draeger 81-01841 Benzene only (0.5-10 ppm) Multigas Detector Neotronics Exotox-55 Oxygen, %LEL (combustible (Required) ISC TMX -410 and flammable vapors and GasTech GX-91 gases),hydrogen sulfide, and MSA 360 or 361 methane 7.1.1 Workspace (Exclusion Zone) Monitoring Workplace monitoring must be sufficient to properly characterize employee exposures, and provide knowledge of work location conditions in enough detail to determine PPE requirements as work progresses. Required monitoring procedures, instrumentation, frequency and locations are specified in i,. Table 7-2 along with response actions based upon monitoring results. In general, monitoring will be used to evaluate worker breathing zone concentrations of site contaminants as a measure of exposure potential and for determination of the need for changes in specified respiratory protection. In addition, monitoring for explosive conditions shall be conducted as specified in Table 7-2. 7.1.2 Work Area Boundary Monitoring Monitoring will be conducted to assess release of contaminants to the surrounding "community" (the area, and anyone in it, not within the controlled work area(s) related to this project). Release of contaminants to the community can be monitored through determination of airborne levels of contaminants present at the boundary of the controlled area(s). This evaluation will be conducted using the same direct reading instrumentation employed for workspace evaluation (see Section 7.1.1). LW 4" L.0 hslprojsupkominachasp.doe 7-1 02/09/98 L.