Document jgGypL8qgmKnqoo6LV1OZgkzy

PLAINTIFF'S EXHIBIT BRK-158 Auguat 16, 19-8af*ty-8 ftp. baun Supervisor of Safety Qurrrolet-Cleveland Z&rlaloe Bzookpark 4 8tanpf Bonds Pane, Ohio Door Nr. Saaeayi tocloood are.too copies of o report oa ths visit node to tho plant Aegost 7C 1?66 ** ^ Soetiaa 7 of thereport roao--1>fle that a nalntananoe prooodure bo sohodaled for regular oloaning of tba drat oolleetnre. Please contact this Division any tins it nay ba of service to tho Company on matters pertaining to accident prevention or industrial hygiene. Tory truly yeure. AEStfb Snc Albert I* Scheible, P.K. Safety ftigineor a August 16, 19-3efety-8 Set Chevrolet-Cleveland Division General Motors Corporation Brookpart ft Stuapf Beads Parma, Ohio Utl29 1. On August 7, 1968, a visit was nads by the writer to the subject company. The visit sas prented by a jwuuIcation from a ntnbir of the Local Onion Safety and Compensation Committee. 1 request was aado for a survey of atnospherio conditions in Department k5, antonatie tranemlssloQS heat treating. 2. Nr. HUllaa Baasy, Supervisor of Safety was oeobacted at the plant* 3. At this location, the Dlvialan nanufacturea automatic tranauiealone, drive shafts, and pressed ateel parts for truces sash as fsndsrs and hoods. The plant is a large Modern building ooverlng about U$ acres* Outside air is brought in by aechanieal equipment end distributed to various locations throughout the plant. There were no dusty operations and no visible dust observed la that part of the plant visited. For the type of work perforated, the plant was exceptionally dean. The area, in which an eaployee vbo had aade a complaint works, is about 75' square* It is an interior area in the plant. . The complainant is classified a* a set-up aan. A variety of dntiea are lnsluded In this classification including the operation of shakeout aschines, in this ease Uheelabrmtors. There are five bheelabrators in thv area* They arc totally enclosed and looally exhausted to four dust oolleotoro (one dust collector serves two bheelabrstore). Three bheelahrators ere normally in oper. 'ion. At the time of the visit only two ware being used* Atmospheric conditions vara probably better than normal from a dust standpoint. L. An air sample was taken while walking about the area in Department k$ 4here the complainant works. The seapla Indicated a dust concentration of only 0.8 million particle* par ouhio foot of air(agpof). Re Cherj'oleV-Cl*valad Otritloa Parse, mm Uhliy August 16, 1966 Page 2 A sat-up aan on duty t the tine of the visit said that duet becaae visible If the dust collectors vara sot kept dean. Be demonstrated this by shutting off the air exhaust from a wachlne that waa operating. Considerable fine dnst vaa observed to eeeapa fro* tba aeoaaa door of tha machine. Be said that tha dust oellsetors do not oftec beowes overloaded. Tha snail porta that vara bain* prooesssd were steel. Praetlaally all of tha parta prooaaaad ara ataal. Occasionally tlawlsaa parta ara pat througa tha bheelabratore. Vary littla alloy eases to tha araa. Since tha parta ara already quite clean Uia* they oouu to tha ara*, tha dust produced would be primarily ataal dust. Steal dual would ba oonaidarad aa inert material. Tha thraahold Halt value for this dbat haa beam established by tha American Conference of Ooverasantal Industrial fiygindata to ba $0nppcf. Thraahold Halt values refer to air-bone eoneastmtioas af aubatanoaa and represent condltlene under which it la believed that nearly all worker* ny be repeatedly exposed, day after day, without adveree offset. Zt la gaoerally reoogttUed, however, that a vide varlaaoe of susceptibility exist* among different people with reboot to tha affbet of varioas aabataoeaa. It is not lap!led or mnasanrtid that aouditloa* ba auoh aa to pervlt ooaee&tratiaaB ta rwuli at or anar thraabald Unit values. 5. . Zt will ba noted that dla observed dost oosoentratAoa was far balev tha thraahold Unit valas. Zt wap ao law aa to be practically aegllglbla. this observer, an a peat ooeaalon, baa found a bighar daat ooaeeatratisa in outaida atmosphere. So doubt, daring increased aotivity in tha araa, tha dost ooneantrattaa would be.higher than observed*! tha tin* af this visit. However, it la woetualDcsly that it.would aveoappreach tha threshold limit value, axoept possibly at a tie* idvan all tha Haaalahratora ware working and all tha dust ooUaotorw needed cleaning. Suoh a situation would probably not occur, certainly not with nqf swfulertfy.. Inhalation of inaolubla laort notarial nay result. In aewa accumulation In tha respiretory paasagaa. Iron duet can canoe sidoroaie of tiaauea if the iron remains in tha tiacaaa. This la believed to ba a benign oooditlon. However, it la desirable to eentarol the conocntratiom of such particulates in keeping with good industrial hygiene practioe. .6 This survey haa baen wada under Section IC-5-11 af IC-5, Specific Safety Requirements of Baa Industrial Commission of Ohio Relating to All Workshop* and yaotoriaa. 7. The only recommendation nede at this Una 1$ losofcedule a maintenance procedure for regular olee&lng of the dust ooXlaoters. Seepectfully submitted. ASStfb Albert X. Soheible, P.K. Safety. Engineer 'r mmsnr: l\