Document 8RRn50Ko4MyEvK3QM74ryYg5y

l ' fZujlhd CC: D. G. Windsor, FRD R. C. Cooley, ERD L. V. Thatcher, GSD 1 1 exhibit DTJP-1947 April 18, 1984 TO: J. G. PAGE, JR. ilMARTIN ,(R iYYIm^m 0M:'f,u 4*4/r9^ V ajr Here is some Information you requested recently: ^und Asbestos Air Monitoring ~X& Departmental industrial hygiene coordinators for several tents were contacted to determine what airborne asbestos monitoring has :ne in plant process areas where undisturbed asbestos is present. The tensive study was done at Chambers Works. Several hundred samples -ken across the plant on all shifts. All results were below 0.05 L; most were below 0.03 fiber/mL, the sensitivity of the monitoring This data is available if needed. Victoria performed similar sampling in 1978. Forty-two samples =kcr. in laboratories, office buildings and process areas. Thirty-eight .3 were reported as nondetected (less than 0.01 fiber/mL). Five were in 'go of 0.01 to 0.19 fiber/mL. Three samples were taken in an area -rar.site was present in 1982. The highest result was 0.01 fiber/mL. Savannah River Plant has taken'several asbestos background samples. = re all reported as nondetected (less than 0.05 fiber/mL). Several other sites including Cape Fear and Old Hickory have -ed around the perimeter of asbestos removal operations and have c results below 0.1 fiber/mL, some below 0.01 fiber/mL. Buildings Monitoring is performed routinely under normal conditions in i:.e, Montchanin, Bank of Delaware and Girard Bank buildings. Since f samples have been taken. One sample was reported as 0.02 No asbestos fibers were detected in any other samples, ity of the method is 0.01 fiber/mL. Monitoring is performed when large areas of ceiling tiles are This is done at night and results have been low (less than 0.05 -I.. Monitoring is not done when only a few tiles are removed. This .f such a short tine period that the air sample would be too small to : = cr.able sensitivity. DUP 0501562 DU 001301 Mo calling tllas currently in these buildings are known to contain as' ~s. L. V. Thatcher thinks it is possible that some old glued-on as s ceiling tiles might contain asbestos. This is checked before Tt Monitoring was performed in a Parlin Office Building which has tr. re calls. No airborne asbestos was detectad (i.e., less than 0.1 fi'. C). Cr rjCHS Process area monitoring data indicates there would be very few, if ar. -ses where sites would have to take additional action in workplaces co nir.g undisturbed asbestos to meet a PEL of 0.1 fiber/mL. More sites should perform background monitoring in worst case s: --.ins to confirm this conclusion. If any workplace is found to exceed 0. ier/mL, action should be taken to meet this level. Monitoring data for office buildings indicates good control and no p- -n to meet an exposure limit of 0.1 fiber/mL. J' i DUP 0501563 DU 001302