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Ip *. r Report of Preliminary OCCUPATIONAL DISEASE STUDY The Flintkote Company Orangeburg Kfg, Division Ravenna, Ohio BY William E. Shoemaker Industrial Hygiene. .Engineer Atlantic Division Engineering September 21 & 22, 1965 PLAINTIFF'S EXHIBIT FK-296 City of Salt. v. Keene Core Balt. Cty. Circ. Ct. Case No. 84 268068/CL 25639 September, 1993 PURPOSE The purpose of this investigation was to determine the probable extent of the dust hazard associated with the manufacture of asbestos cement pipe. Neither the visit of our representative under the terms of our policy nor tne making of this report constitutes an undertaking to determine or warrant that your premises or operations are safe. CONCLUSION A. Atmospheric dust conditions throughout the pipe manufacturing areas where the greatest number of employees are potentially exposed, was found to be below the Threshold Limit Values set for silica and asbestos. N> recommendations were developed for the major production areas of the plant as a result of this study. B. Unloading burlap bagged asbestos fiber from railroad box cars under summer conditions (both doors open) showed atmospheric dust levels below the Threshold Limit Value. However, simulated winter conditions with one door closed and awning in place gave a slightly excessive dust level. Insufficient tests were made to conclude definitely what effective control measures would be. Burlap bagged fiber rep resents only 15,3 of your receipts; unfortunately no railroad cars containing pager bagged fiber were being unloaded during the week of the writer's visit, hence further testing is ad visable. C. Atmospheric dust concentration i n the Ball Mill Building where conglomerate quartz is ground showed a level slightly above tne Threshold Limit Value. However, the employee is said to work here ten minutes or less an hour. Re duction in the dust level should not be difficult. City of Balt. v. Keer>e Corp Balt. Cty. Circ. Ct. CSeaosteernHtoM.br8412006X8068/cl 25639 RECOMKSNPATICTTS A, Atmospheric dust should be retested to check evaluation of unloading burlap bagged asbestos under summer conditions with both railroad car doors open. Similarly, atmospheric tests should be made to determine if as satisfactory levels are found in the unloading of paper bagged asbestos. B. Further atmospheric dust testing should be done during the unloading of burlap bagged asbestos under winter conditions when entrance to the car is closed in and only one car door open. While not conclusive, it is believed that the air blown into the car by the unit heater nay be stirring up dust within tie car to create the poor condition. Substitution of radiant heat within the car when needed might correct this condition. DISCUSSION Ch September 21st and 22nd, 1965 thirty atmospheric dust samples were collected on mlllipore filters using Umco No. 2199 Nighty Mite electric pump as a source of suction. The samples were sent to our Industrial Hygiene Laboratory in Wakefield, Massachusetts and counted by light-field technique. Samples of settled dust were accumulated from structural members overhead in tne plant at. the locations described in the Mineral Dust Analysis Table. Petrographic analysis of these was done in our laboratory, Difficulty was encountered in obtaining a representative settled dust sample around the Willow and RR car unloading areas. However, since onlg asbestos fiber is handled here, it was concluded that a prudent threshold limit value would be 5 million particles per cubic foot. It is believed that Settled Sample No. 3 represents more the atmospheric dust likely to be found in the storage silos where no one actually works, rather than the Willow operation. City of Balt. v. Keen* Crp Balt. Cty. Circ. Ct. Case No. 84 268068/CL 2$639 DISCUSSION (Continued) Commendable planning and engineering of ventila tion for the elimination of atmospheric dust were evident throughout the operations. Exemplaryhousekeeping practices were observed with the possible exception of the Ball Mill. Only tvro of the thirty atmospheric samples taken were found to be slightly excessive as shown on Air Analysis Table I. City of Balt. v. Keene corp Balt. Cty. Circ. Ct. Case Ho. 84 268068/Cl. 25639 Septefifeer, 1993 DATE Sept, 21.. lQSn 9 PLANT Orangeburg Kfg. Co. Div. PHYitkotp. r.o. LOCATION Ravens. 0. Sample No. RAM MATERIAL HANDLING & PREPARATION Dust Time Concentration Mint Location and Events xm xmc (Q AR 85 . AR. 86 AR 87 Ball Mill Bldg. Grinding ,:Silex" 10 (quartz). General sample. 1st floor in vicinity.of control panel. RR Box Car. Fiber unloading.Worker 10 sample 2 men. Burlap bags. One RR car door closed ? Tarn, in pljsce to simulate winter conditions. Air bio ier on. RR Box Car. Fiber unloading. Worker 10 sample-2 men. Burlap bags. Air blow - pr> nn hnt tnrnrm1in nnt_ i n Both RR car car doors open. 4.5 6.1 3.2 . Fiber Willowing. General Sample. au 99 10 hO?pceSninog? &asoD.eusm.sooins7s p1 a1per & burlap Less than 0.35 Fiber Willowing. 12 ft, fiber con AR 82 10 veyor. Worker sample, stack bags of ashesf.os -- in hars ? i slit & dump into hooded conveyor. 1.6 AR 81 10 Fiber Willowing. 10 ft. fiber con veyor. Worker sample as above. A 11 in. Viiinlar V**>r*e .. . .- Less than 0.32 * fo.x C-I375 >0-4S (Sample AR 85 Threshold Limit Value (All Other On this A--Milligrams per Cubic Meter<pjjQ3.e --Asbestos -4 I-IPPCF -- 5 I'IPPCF n . . 8---Part* per Million C--Million Particles per Cubic Foot AMERICAN MUTUAL LIABILITY INSURANCE CO. City of Balt. v. Keene Corp BCaaslet- No. 84 268068/0. 25639 September, 1993 REFERENCE: ACGIH Threshold Limit values for IQn^ PLANT Orangeburg, Mfg. Co. Div. T?lintkote no.LOCATION Ravenna. O. DATE Sept,. 21 fe 22. !Q5n AIR ANALYSIS TABLE n Sample No. AR 80 AR 79 Time Mins. 10 10 PIPE MANUFACTURING Location anti Events Large Coupling Cut-off Machine . Worker sample. Dust Concentration xtar $ix (a). 0.65 . Around large Coupling Cut-off Mach, Universal Coupling Lathes Nos. 1 & 2 and Ronina: Mill. All in ooeratioi General sample. 0.97 AR 78 AR 84 AR 83 10 Universal Coupling Lathe No.' 1. \7orker sample. 12 ft. Pipe Machine Console. Gener< 10 sample at work station. Windows & ' dOr,r`s nrori 10 ft Pipe Machine Console. Genera: 10 sample at work station. 1.9 0.97 1.3 AT 7 AV 8 AV 9 AV 10 AV 11 AV 12 AV 13 UAlbUA VJW 10 Fitting Lathe. Worker sanple. Putting ends on 8" sewer pipe. 0.65 Nipple Lathe . Worker sample. 10 Increaser ring. 1.6 Heavy Tap Drill - l. Forker damplc 10 Wet drilling . Radial Drill. Worker sample. Wet 9 drilling. Boring mill. Worker sample 10 0.32 1.8 3.2 Universal Pipe Lathe No, l Worker 8* samDle south side. 6" pressure niPh . Less than 0.38 C-1375 I0*J . B---Parts per Million C--Million Particles per Cubic Foot Belt. Cty. Circ. Ct. Case V\b 84 268068/CL 25639 September. 1995 AMERICAN MUTUAL LIABILITY INSURANCE CO. REFERENCE: ACGIH Threshold Limit: values fer iac Orangeburg Mfg. Co. Div. PLANT WH-ntkote Co.LOCATION Ravenna, 0. DATE __SepJb._ 21,. fr 22.- 3.9.5f 5 Sample No. AV 14- AV 15 AV 16 AV 17 AV 18 AV 19 iiV <-W AV 21 Time Mins. 10 10 10 10 10 10 A JL.W 10 AIR ANALYSIS TABLE III PIPE MANUFACTURING Location and Events Same - worker sample, north side | Dust Concentration Taj m fc) 0.32 Universal Pipe Lathe No. 2V/orker sample. Sofctn side. 4" pressure ryLpo Sane " worker sample, north side, Less than 0.32 0.65 Universal Pipe Lathes Nos. 1& 2. General sanple. Botn running full hi w. . ..... ._ Small Coupling Cut-off, Worker sample ^ss than 0,32 1.9 Monolithic Lathe. Worker sample. 4"-22f elbow. 0.32 Band saw. Worker sample. Angle * kJXj* ti uL iu>xiaJl& 11111 Jn-- ished fittings. 'Worker sample. Brushing full time during sampling aionougn Drusnang is onxy a paft time job. 2.77 2.6 AV 22 Machine Over All I-10A. 6" pressure 10 pipe. Worker sample 1.9 AV 23 AV 24 AV 25 10 10 64 K. & C. Line. Machining end of 4" non pressure pipe, Worker sample. Worth end of machine. K. & C.Line. Sacs, south end of machine. ' Less 0.32 than 6.32 Wet Saw. V/orker sample, 20" dia. sav Less than 0,50 o C-1375 io** Threshold limit Value A--Milligrams per Cubic Meter . B~Parts per Million C--Million Particles per Cubic Foot AMERICAN MUTUAL LIABILITY INSURANCE CO. 10 City of Salt. v. Keene Cotp Balt. Cty. Cire. Ct. Case No. 84 268068/CL 25639 Sept enter, 1993 uui a iux> DATE .* . MINERAL DUST ANALYSIS TABLE PUNT ORANGEBURG MFG._CO.JDIV. THE FLINTKOTE CO. LOCATION 'RAVENNA, 0. " .......... laboratory Sample No. . MD 1358 MD 1361 Your Sample No. .A n D __ __ Deerintian____ JPall "Silex". said to 1 Mwm# s_________ operation. . K 'athe area. Above columns ZjL&JR 7, N.E. corner of bldg., betwee n MOX 4t K. it C. lines. Columns C 10 & C It. Per Cenct,,.F,--reie 1 ASBESTQf 0 21 . 1.3 22 1.6 mT- -- % c o 1664 . City ot Balt. v. Keef* corp Balt. Cty. Circ. Ct. Case Mb. 84 268068/Cl js639 September, 1993 amiucan mutual u-uiurr >msu>ance comfany Cctobor 7# 1965 Kr. R. O'Sullivan, Plant Manager Orangoburg Manufacturing Co. Div. of The Flintkote Co. Ravonaa, Ohio 44266 ,~ I; 1 . Res > Dust Study I 1 Dear Nr- O'Sullivans Following y call at your plant on 'September- 21st. and 22nd, 1965, the Atmospheric Dust Samples accumulated have boon forwarded to our laboratory In Wakefield, Massaohuasetts, for counting, fia soon ns the laboratory Information becocua available, results of tho study will be forwarded to you. It was a pleasure to cooperate with you In this preliminary survey - Vory truly yours. /,<j /.T - ^`^ William 23. Shoemaker, Z^DTZCSRXAL HS02SS3 ENQIIGZR WD3tjca oat- Mr* Harry Koubnor, Incuranco Manager / KT. John P. Tuffy, Aas't. Insurance Manage? Tho Flintkoto Company Inc. 20 Rockefeller Plaza Kaw York 20, N. Y* OJJi City of Balt. v. Keene Corp Balt. Cty. Circ. Ct. Case xo. 84 268068/Ct 25639 Septenber, 1993 ____