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Actual results indicate that all samples were less than 0.11667 <br />fibers per cubic centimeter. The OSHA and NIOSH standards for <br />eight hour worker exposure are each 0.2 fibers per cubic <br />centimeter of air. The latter standards represent the levels of <br />asbestos fibers to which workers may be exposed continuously over <br />an eight-hour working day without threat to health or safety. <br />The OSHA standard is based on 29 CFR 1910.1001. The laboratory <br />report is attached to this letter report. Since actual field <br />sampling work was performed by an employee of Eljumaily and <br />Butler, the undersigned cannot assume responsibility for the <br />validity of the field procedures used in the sampling. <br />As noted in an earlier report from JW Enterprises on asbestos <br />testing, the OSHA and ACGIH threshold limits for asbestos fiber <br />exposure in the workingplace are each 0.2 fibers per cubic <br />centimeter of air. Since all samples on the dates of November <br />29, 1988 and January 26, 1989 were well below these levels at the <br />time of sampling, it can be concluded that there was no hazard to <br />workers from asbestos exposure during the sampling time. <br />Please contact me if <br />information. <br />Attachment <br />you have any additional questions on this <br />Sincerely, <br />John D. Walsh <br />Principal Scientist <br />