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Table 8-2 <br /> Hydrocarbon Response Criteria <br /> Organic Vapor Concentrations(OVQ and Sampiing Frequency Action Taken <br /> Specific Contaminant Monitoring - <br /> OVC 0-<1 ppm for>2 minutes Whenever new soil is broken upon initial Continue work with required minimum PPE <br /> approach to surface water and sediment sampling for the field activity(Section 7 0) <br /> sites,at least every 30 minutes throughout <br /> activity <br /> OVC 1-10 ppm for>2 minutes Every 15 minutes until OVC levels decrease to<l Continue to work with required minimum <br /> • Collect DTs at SS for ppm PPE for the field activity <br /> -TCE <br /> D I measurements reveal no detectable concentrations <br /> OVC 11-100 ppm for>2 minutes Every 15 minutes All personnel on-site will don half-face or <br /> 00 • Collect DTs at SS for full-face air-purifying respirator equipped <br /> LA -TCE with organic vapor/HEPA filter cartridges <br /> DT measurements at SS reveal All personnel on-site will don Tyvek)E <br /> -TCE s 25 ppm coveralls <br /> OVC 101-500 ppm>2 minutes Every 10 minutes All personnel on site will don full-face air <br /> Collect DTs at SS for purifying respirator equipped with organic <br /> -TCE vapor/HEPA filter cartridges <br /> OVC>500 ppm Stop work <br /> or Work crews position themselves upwind of <br /> TCE>250 ppm site <br /> Re-evaluate in 15 minutes <br /> Contact field coordinator and projeLt health <br /> and safety officer <br /> NOTE These same actions are to be taken if <br /> LEL is>10%or the oxygen level is>19 5% <br /> or>22% <br /> OVC = Organic vapor concentrations <br /> Ss = Sampling site <br />