Document DDg3X8r24vwVDBq7DdDLjXNJM

Summary report: Semi-annual asbestos survey at Asbestos-Cemenf Pipe Division J-M Manufacturing Company, inc. Denison, Texas Galson Project # S6-350-00 Submitted to: Dr. E. E. Wang Corporate Environmental Control Manager 1051 Sperry Road Stockton, CA 95206 March 31, 1986 Gabon Technical Services, Inc. Environmental Sciences Division, 6601 Kirkville Road, East Syracuse, New York 13057 APR. 23 1986 D 001795 Summary report: Semi-annual asbestos survey at Asbestos-Cement Pipe Division J-M Manufacturing Company, Inc. Denison, Texas Galson Project # S6-350-00 Submitted by : (2J Chuck C. Siu, CIH D 001796 ABSTRACT " This report summarizes the results of the Spring, 1986 half-annual survey for workers' exposures to asbestos at the Asbestos-Cement Pipe Division of J-M Manufacturing, Inc. at Denison, Texas. The results may be summarized as follows: 1. Exposure of 14 out of 31 workers monitored were measured at or above the current Occupational Safety and Health Administration (OSHA) Action Level of 0.07 fiber/cc for daily exposure of 12 hours. The Action Level is the concentration above which routine monitoring and medical examinations are required. 2. Exposure of 7 out of the 31 workers monitored were measured above or close to 0.13 fiber/cc, the lower of the two proposed OSHA 12-hour daily permissible exposure levels (PEL). 3. The slash (wet) saw operator's exposure exceeded 0.33 fiber/cc, the higher of the two proposed daily permissible exposure levels (adjusted for 12-hour shift). His exposure also exceeded 50% of 1.3 fiber/cc, the current OSHA PEL (adjusted for 12-hour shift). 4. The UCL workers were not monitored since operations were suspended on the survey day. 001191 D Project Personnel J-M Manufacturing, Inc. Dr. E. E. Wang Mr. Tim Armstrong Mr. Carl Weger Corporate Environmental Control Manager Denison, TX site coordinator Denison, TX site coordinator Galson Technical Services, Inc. Mr. Chuck C. Siu, CIH Mr. Daryl Jahn Mr. Scott Silvey Project Manager & Laboratory Director Industrial Hygiene Technician & Laboratory Technician Computer Programmer ii D 001798 TABLE OF CONTENTS Abstract Project Personnel page i ii Introduction Sampling and analytical method Permissible Exposure Standards Results Observations and Recommendations Appendix I - Sampling and analytical method Appendix II - Field Data Sheets Appendix III - Laboratory Data Sheets 1 1 2 2 6 0 oOAf" INTRODUCTION This report summarizes the results of a sampling survey conducted on March 31, 1986 at the Asbestos-Cement Pipe Division of J-M Manufacturing^ Inc. at Denison, Texas. The purpose of the half-annual survey was to monitor worker exposures to asbestos fibers as required by the current Occupational Safety and Health Administration (OSHA) regulations. The survey was performed by Chuck C. Siu, Certified Industrial Hygienist of Galson Technical Services, Inc., Oakland, California, at the request of Dr. E. E. Wang, Corporate Environmental Manager. Site coordination was provided by Mr. Tim Armstrong and Mr. Carl Weger of the Denison plant. SAMPLING AND ANALYTICAL METHOD Sampling and analysis were in accordance with National Institute for Occupational Safety and Health (NIOSH) method #P&CAM 239. This method is required by the current OSHA asbestos regulations for occupational monitoring of asbestos. A more detailed discussion of the method is presented in Appendix I. 1 D 001800 GALSON TECHNICAL SERVICES, INC. PERMISSIBLE "EXPOSURE STANDARDS Occupational asbestos exposures are governed by the OSHA permissible exposure levels. The current and proposed OSHA standards are summarised as follows, along with those recommended by NIOSH and 1985-86 American Conference of Governmental Industrial Hygienists (ACGIH). Source of Standard (adjusted) 8-hour .12-hour Ceiling (fiber/cc)(fiber/cc) (fiber/cc) Current OSHA standard permissible exposure "Action Level" * 1st Proposed OSHA standard 2nd Proposed OSHA standard 2.0 0.1 0.5 0.2 1.3 0.07 0.33 0.13 10.0 -- -- NIOSH recommended standard 0.1 0.07 -- ACGIH recommended standards chrysotile asbestos crocidolite asbestos 2.0 0.2 1.3 0.13 -- * The Federal OSHA asbestos regulations do not have an "Action Level" explicitly stated. 0.1 fiber/cc has been interpreted as an index above which routine monitoring and medical examinations should be implemented. RESULTS Before entering into the discussion of the results, the following items should be kept in mind: 2 D 001801 GALSON TECHNICAL SERVICES, INC. 1. Several work positions were not in operation on the survey day, consequently those workers were not monitored. They are listed as follows: UCL operator, Coupling Cut-off, Boring Mill, Power Sweeper, Coupling Tester and Lining Service. 2. The work positions to be sampled were selected by the plant manager prior to the survey: selection was based on sampling results from previous surveys. 3. Since the work activity levels for these work positions were considered fairly steady throughout the shift, samples of 4-hour durations were collected and their results assumed representative of the whole day exposures 4. Most personnel monitored work a 12-hour shift, the remainder an 8-hour shift and are listed below: electricians, mechanic, moulding department and utility truck driver. Results are summarized below and in Table 1, and pertinent field and laboratory data sheets are included 3 Q 00A802 GALSON TECHNICAL SERVICES, INC. in Appendices II and III. The general locations of most of the work positions monitored are shown on Figure 1. 1. Of the 5 persons who worked an 8-hour shift, their exposures ranged from less than 0.03 to 0.04 fiber/cc. These values were below the 8-hour Action Level of 0.1 fiber/cc. (Action Level is the concentration at which routine monitoring and medical examinations are required to be given to the workers.) 2. Among the 26 workers who worked a 12-hour shift, 12 measurements were below and 14 were above the current Occupational Safety and Health Administration (OSHA) Action Level of 0.07 fiber/cc adjusted for 12-hour shift. 3. 7 measurements exceeded 0.13 fiber/cc, which is the lower of the two proposed PEL adjusted for a 12-hour shift. 4. The slash (wet) saw operator's exposure was measured at 1.08 fiber/cc. This level exceeded 0.33 fiber/cc, the higher of the two proposed standard (adjusted for 12-hour shift). His exposure was 83% of the current standard of 1.3 fiber/cc (adjusted for 12hour shift). 4 D 001803 TABLE 1 RESULTS SUMMARY OF SEMI-ANNUAL ASBESTOS SURVEY at . J-M Mfg. Inc., Denison, Texas March 31, 1986 Galson Project #S6-350-00 Location Employee's Name Operations Exposure Sample Sampling Level I.D. Duration Fibers/cc 1 Jimmy Lang 13' Utility Oper. 5756 254 2 Ed Heironimus 13* PM Tender 5757 246 3 Tommy Martin Gen. Worker 5778 279 4 Ray Terrell 13' PM Head Curer 5758 243 5 Cecil Bell 13' PM Curer 5774 239 6 Charlie Moore 13' Control Oper. 5771 250 7 Lewis Ives 13' PM Asst Serv 5766 270 8 Phillip French 13' Service Opr 5773 218 9 Charles Wilson 13 PM Stm Tank Opr 5759 263 10 Arlis Chambers Salvage Trk Driver 5763 259 11 Dale Kent Willow Operator 12 Pete Turnbull Boiler Oprator 13 Bill Rogers UPL Operator 14 Glen Weger UPL Helper 15 James Walsh UPL Inspector 5820 5775 5764 5768 5765 260 260 255 253 252 16 Roger Cam Janitor 5761 306 17 Dock Dill UPL Hydrotester Opr 5824 252 18 Raymond Hesse 13' Unit Leader 5809 248 19 Jeck Bartley 18000# Trk Driver 5776 249 20 Thurman Stanley MOA Operator 5777 246 21 Wilbur Greene Tool Room Opr 5762 246 22 Don Dutton Molder 5787 168 23 Elliot't Brown Crew Leader 5792 167 24 Fredie Wright Utility Trk Driver 5803 216 25 Bill Williams Electrician 5793 125 26 Murel Abernathy Mechanic 5802 120 27 Jerry Bruce Platform Trk Driver 5782 248 28 Jack Hansard Sm Fork Trk Driver 5788 244 29 James Bush Sample Plan Insp. 5815 240 30 Henry Coldiron In Process Insp. 5788 240 31 Lawrence Arnold Slash Saw Opr 5805 240 0.09 0.16 0.10 0.13 0 -15 0.16 0.21 0.11 < 0.02 0.02 0.19 < 0.02 0.09 0.03 0.09 0.05 0.04 0.06 0.03 0.04 0.05 0.04 0.03 0.02 < 0.03 0.04 0.08 0.03 0.08 0.03 1.08 * the locations correspond to those marked on Figure 1. actual and estimated whole day time--weighted--average exposure level. 5 D 001804 Figure 1. Sketch showing employee workstations monitored lor asbestos. J-M Manufacturing, Inc., Denison, TX. March 31,1986. Galson Project ft S6-350-00. ((# ) corresponds to the codes as shown in Table 1.) GALSON TECHNICAL SERVICES, INC. OBSERVATIONS AND RECOMMENDATIONS This survey was not intended to be a comprehensive industrial hygiene evaluation of the plant, but some of the observations made during the survey are summarized below with the corresponding recommendations: 1. Although exposure to the slash saw operator was below the current OSHA standard of 1.3 fiber/cc, his measurement warrants the use of a NIOSH approved respirator for protection against asbestos dust. At the minimum, a half-face respirator equipped with high efficient particulate aerosol (HEPA) filter cartridges is preferred. 2. During the survey, several workers were observed using NIOSH approved respirators equipped with dust pads for protection against asbestos dust. NIOSH has recommended that such dust pads not be used for this purpose, despite its continual "approval" as required by law. The dust pads should be replaced by HEPA cartridges. 3. The transparent shield at the local exhaust for one of the Universal Pipe Lathe (UPL) work stations was frequently missing, thus reducing the efficiency of the exhaust. The shield should be kept in place as much as feasible. 6 D 001806 Appendix I Sampling and analytical method ASBESTOS (Summary of NIOSH P&CAM 239) The sampling and analytical methods incorporated in this study were those recommended in NIOSH Method P&CAM 239 for the quantification of airborne asbestos fiber concentrations. The preferred index of asbestos exposure is the humber of fibers longer than 5 microns with a length to width aspect ratio greater than three to one, as counted on membrane -filters at 400-450X magnification by phase contrast microscopy. This method of analysis requires the use of specific procedures for the collection of the sample. The principle of the sampling method is as follows. A known volume of air is drawn through a 0.8 micron pore size cellulose ester filter utilizing a personal sample pump. The pumps are calibrated prior to sampling using a calibrated, precision rotameter. Any particulate materials present in the sampled air impact on the filter. A portion of the filter is analyzed visually using phase contrast microscopy. When analyzing the filter, only objects with a length at least three times the width and a total length of at least 5 microns are counted. The total number of fibers on the filter (with the above characteristics) is computed by determining the average number of fibers per unit area on a small portion of the filter and then multiplying this number by the total filter ar ea. The fiber concentration in air is then calculated by dividing the total number of fibers collected by the volume of air sampled. Asbestos samples analyzed using the NIOSH method must contain a minimum of 10 fibers/100 fields to provide a statistically significant concentration measurement. A field is the area covered by the microscopy scale during the counting process. For samples with fewer than 10 fibers per 100 fields, a amaximum concentration is calculated using a nominal value of 10 fibers/100 fields and the volume of air sampled. Maximum concentrations are indicated by a less than (<) sign. Thus, for comparison purposes, samples with fiber counts less than 10 fibers/100 fields are st atistically identical. For example, a fiber count D 001808 of 5 fibers/100 fields is statistically identical to a count of 1 fiber per 100 fields, rather than being 5 times greater. In general, the precision of the counting method decreases with decreasing fiber concentrations. The coefficient of variation for this method is determined using Figure 1 in conjunction with the total fiber count reported on the laboratory data sheet. To determine the 955 confidence interval for the sample result, the reported value is multiplied by two times the coefficient of variation. Finally, note that this analytical method does not positively identify the fibers as asbestos. 2 D 01809 Appendix II Field Data Sheets D 001810  6> ft $ $ 1sr' v * $ b * \V r& 3 < *\ C^ 1 IA N 1b *s. Jt : v\ m OM rt hi $m Itg r ?S w & JM Manufacturing, !nc. Galson Project * S6-350- QQ O.IS *> MSr \ r i1 & F> ? vj sj o- f -0 =^o -Si =*o <oT'- * --a !t o > J -J V <-A <-A f i c o - ~ o -S 'w'S (A) o 5 O o \i oro bO'O M JO f I v/l <*> 7 s O % <T~ O <? O O' s 'h A) 1' % > crUt o> N 3> & F -VC_rJ- lA\'i ! 2o-- >om o Q. 3 rA rs 0 3o< -a a5 0i } ft K r *o -o0 J\ 5 P ? P<^p K> ? n *sy g5. ST S fI JM Manufacturing, Inc. Galson Project * S6-350- CT) 0 .1 1 X \r t z v >s U It c* -i 1 ?m ?O5 ^v E2 ^31 1 uo < 25 0 SO) j .. / >- -- ea rfl g* -J .. &v1i awg 4/ Q4 - s o sp O v vA r~ Si ns 6 r5 d v> -3cAo <=Va 4 o '`o F cc* o pA t~j Ota cv O 6 v ns o 6 V --o <t - Cfr* rJ V- <C ct J- P"* r- or^. V- {a so -s> XD fV' F >o S r-V) &) ru* r- 1 i *<** 5> 5 I r* 1 <k % V 5 o 51 * "* v\ of 0 6 ns o 6 _o V 'r*' sC Si rs s 3- tvs No e 3f y & * 1 *,, s J- 1 J) vQ VA Hi VA *# r- <J t N CVS i C5 *fc ! V, 1 N$> v Or- slA IV\ \J CT \p O C\J CO o o o "8 JM Manufacturing, Inc. Gabon Project S6-350- OOI 0 .0 3 0 .0 3 Q (a <3~ O o cr o 6 vA 4- 'ft 5 < Ho & ry> ^>0V * A ?| p VO cfe * Nl Q> -v -^J> 'O * XC -s^ * V |I 'ti > OQ is i____ JM Manufacturing, Inc. Gallon Project IS6-350- <5 Code*: 1 1/2 faced reipirator uied2 other PPGadequate if needed- Ug 8 <1 X s U. d v x4 V S U. u. | M 100 <8 %o ^* E2 a _sa ll - \on Q \on 6 $ T O O T O 6 * Vto/' N\PnO* << 1 <s I li \9 'O C vD O 6 d Af* J) ^cS b .5<v> s: <ar 3 a" l om J *. Ea w i iV) Q ^ s* E. I $ C9 Q Qi (3> \ k a k 1 a a "P rt- CO o o Q JM Manufacturing, Inc. Galson Project S6-350- O OI Codec 1 1/2 faced reipiralor used- 2 other PTE adequate if needed- - JS ug J8t c: X 3 )I H vc c i <a Ll U 2 3r 2 g 2*' o. a 2 2 fO.. IS S E5 B Q So t O8. loa O ion o t co *o 5Oo \s\ 'OrJ \ ! <1. 2. O <4o <P <A5a) ' "3 Iv? O Ja ro t 1 3 rfl <5U N < a in co o o JM Manufacturing, Inc. Galson Project S6-350- OQI L f* rO O X6 t- *1 oI'O 6 r- S V5s r1 u rri E .. O * E5 cO rv sl 3s S <2 * C * *iS t < > 3 <&awj 0 I m a AO r^\ -FH- JM Manufacturing, Inc. Galson Project < S6-350- r <i { y/ 's p um. vL 9 z "3 avi 0 o a^ fPt a rfl t<o Q< (W o 6 tA O o -T V7 -J> At d --p -3 *-*0 ^XD V N^ N ^ r- <P O o 0 O o o 0^ -3- o r>i ^1- :k cN V^i vA o 10 30 $ SI is ^Q ^j V-/ ~ l \ ^ Or O <T> dQ \ ^ J? o o 053 _c> \o Vv JD >*-d c>o or- nVp i $ A $ oo O eo O o d TT f\ N VI >OA V\ 1 f* 5: u? <2 *i > >** l i *C m 1 c* . 1IS <ic 5? 4 il N O PA IJM Manufacturing, Inc. Galson Project S6-35Q- D O -Coder. 1 1/2 faced retpirator uted - if2 other PTE adequate needed Appendix III Laboratory Data Sheets Galson Technical Sendees, Inc. 77 Bth Sheet Oakland. CA 94607 (415) 763-1677 laboratory data analysis of 2 Environmental Sciences Division Client: JM-Denison Date Sampled: NS 37mm cassette Porton Field = 0.0121mmA2 Job #: S6-350-00 Date Analyzed: 4/8/86 Client's Galson I.D. I.D. Number of Fields Number of Volume Fibers Fibers (L) per cc Comments 5754 5756 5757 5758 5759 5760 5761 5762 5763 5764 5765 94896 94897 94898 94899 94900 94901 94902 94903 94904 94905 94906 100 NI 0 NA blank 100 56.0 432 0.09 100 96.5 418 0.16 100 77.0 413 0.13 100 9.5 447 < 0.02 100 1.0 0 NA blank 100 36.0 520 0.05 100 29.0 418 0.05 Overloaded filter 100 14.5 440 0.02 100 56.0 434 0.09 100 53.0 428 0.09 Submitted by: Approved by: ANALYSIS METHOD: NIOSH P&CAM #239 D 001820 Galson Technical Sanricaa, Inc. 77 8th Street Oakland. CA 94607 (415) 763-1677 laboratory data analysis pg 2 of 2 Environmental Sciences Division Client: JM-Denison Date Sampled: NS 37mm cassette Porton Field = 0.0121mmA2 Job #: S6-350-00 Date Analyzed: 4/8/86 Client's Galson I.D. I.D. Number . of Fields Number of Volume Fibers Fibers (L) per cc Comments 5766 5768 5771 5773 5774 5775 5776 5777 5778 5782 5788 5792 5793 5797 5798 5802 5803 5805 5809 5810 5820 5815 5824 94907 94908 94909 94910 94911 94912 94913 94914 94915 94916 94917 94918 94919 94920 94921 94922 94923 94924 94925 94926 94928 94927 94929 75 100.0 100 18.5 100 99.0 100 59.0 100 88.0 100 1.0 100 19.0 100 23.0 100 66.0 100 45.5 100 17.5 100 13.0 100 9.0 100 16.5 100 18.5 100 10.5 100 11.5 20 125.5 100 37.0 100 NI 84 100.0 100 48.5 100 22.0 459 430 425 371 406 442 423 418 474 422 415 284 213 286 408 204 367 408 422 0 442 408 428 0.21 0.03 0.16 0.11 0.15 < 0.02 0.03 0.04 0.10 0.08 0.03 0.03 < 0.03 0.04 0.03 0.04 0.02 1.08 0.06 NA blank 0.19 sample found uncapped 0.08 0.04 Submitted by: Approved by: -4- ANALYSIS METHOD: NIOSH'P&CAM #239 D 001821