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"`. Butyl rubb6r boots,steel toe anJ shank <br /> ' Hard hat(must be worn during drilling activities) <br /> All protective equipment used during the course of this field investigation must <br /> meet the following OSHA standards: <br /> Type of Protection Regulation Source <br /> Eye and Face <br /> 29 CFR 1910.133 ANSI 287.1-1968 <br /> Respiratory <br /> 29 CFR 1910.134 ANSI 288.1-1950 <br /> Head 29 CFR 1910.135 ANSI 289.1-1969 <br /> Foot <br /> 29 CFR 1410.136 <br /> ANSI 241.1-1967 <br /> ion musbe <br /> rotect <br /> Both the respiruse in accoand ca <br /> rdartridnceswi h OSHA regulations (29 specified for use in Level C CFR 1910.1025;29 <br /> fit-tested prior to u <br /> CFR 1910.134). <br /> nnot be worn under the following conditions: <br /> Air purifying respirators ca <br /> Oxygen deficiency <br /> IDLH concentrations <br /> High relative humidity <br /> ! . <br /> -°—. If contaminant levels exceed designated use concentrations <br /> If the odor threshold is greater than the designated TLV for a compound. <br /> 3.4 MONITORING REQUIREMENTS <br /> 3,4,1 Routine Monitoring <br /> Monitoring for organic vapors in the breathing zone will be conducted with a <br /> Photovac-TIP II or other photoionization detector. A Draeger bellows equipped <br /> will be used to monitor for benzene. Readings will be <br /> with the appropriate tubes <br /> taken under the following circumstances: <br /> • Upon initial entry onto the site. <br /> • When weather conditions change. <br /> When work begins on another portion of the site. <br /> ,I Every five feet during drilling. <br /> Because of the grinding involved with drilling and split-spoon sampling there is a <br /> enerated. Air monitoring for combustible gases/vapors <br /> potential for sparks to be g <br /> indicator is the instrument of choice in <br /> will be conducted. A cotnbuslihle gas <br /> determining the concentration of flamntal)le vapor in the air. Guidelines have been <br /> • optional,exccpt ns Indicated. <br /> ANSI American Natianai Standards institute <br /> 3.3 <br /> E� <br />