Document 8RvJyMZBqvnqa2Xj17ddxVm3m

PLAINTIFF'S EXHIBIT oiyimoi! or iiinur.i. iA.:. uyc.ii .'it. REPORT ON FIELD INVESTIGATION V / '/ TO: DIVISION OF INDUSTRIAL SAFETY SERVICE, BUREAU OF [XjF&M 1 [CONSTRUCTION Auir'e? _ __ ._ attn: ulsp.^ T. Doauflott feUiJDspVy." . .. P Xifalort 1. FIRM NAME ITdAte of report 13. date of visit 'O ^ /'/l? ^ '' district* x6_ 4. DATE OF REQUE: 5. ADDRESS __ JP..oor-`ux^c;.xio_^ftdQ^Ha 8. INVEST!! ATED DY JJorronn l\ranaltet Xnd* Hygiene Enginoor 10. REPORT 9. 0FFIC1AL(S) INTERVIEJW&ED?-lZfr2L Mr. Edward Foley, Office Hcuwgor Hr. Hllliara EassBor, i'lnnt Engineer In nccortlanco with your request, tho above fins was visited to invootigato poaaiblo eoccoriaivo naiso resulting Iron the Joint Systcma oporationa, posalblo elr coTitowbvuito rosultlxig froa ? & S operations, and possible exposure to exoGOslvo oobootoo iron tiro Joint liyotoca operations - c 3$ I v b d K013U Id TK5 JOinT gg3T5B3 CPBHmOHS. imTHKG 230 department of labor mnu>. y*001 0CT2rii97? FQ-.gim? ^ DTVrC'IOtr np 1H.DUSTil) L r The worJcrooro, which maaourea about 120' X cO* X (25* to AD*; cue ofcoxy east cod of a largo isanotary end stool building. Tim oast vaiil,`bA/*thDbicr)a'Ooa contai.no a lnrgo oliding door, a roan-door, and 3 oponablo windows. Thoro nro 2 openings in t'io vreot wail which load to the warehou&o area. The north and south Trails contain , oponingo. Cenoral meclianical ventilation is provided by a 30" <11 groator exhaust fan roountod in tho east wall at a height Of 10*. Additional ventilation io provided ly 2 gravity roof ventilators. wumniT and opanmons Too dry rdx joint compound fox* ualiboard io prepared in a AO' C0% area loeatod in tho northeast corner of the vorkroosu Tho process involvoo tho preparation of about sixteen IfiOO pound dr/ isbtoo during tho N hour day oJdft. dooh cribs is ccwprittod of 75,J ox* noro liraooto.no with orouiTto of annept.Oto rangin'; from 220 to 320 pounds and xd.ee up to 0*0 poundo, dcpcivling on tho product spociiiod. Minor awounta of other uatorialc aro aloe included. Etecoyvt for tho llxnootono v'dch in dried free* ctjolooed bins, two uixcrmi load tho other iivpfodiciito into a waiot lilgh 5* X V* hopper. Tho cuyaotllo asbestos, contained in 100 Xu. bags, and the rcica, in 0 lb. bago, are dropped on bn,", DJonboro in. Luo boppor, tho contents dumped, and tho empty paper brgs romoved from the area. A vilaratlM;; ccroca e&*tieo tlio hopper to on nclooed conveyor. Ti.o hopi'ox* io providorl with coaocy I*ood at a height of 30" at coo end and iD" at tha otJior ond, arvl is initially ouexoaod. ___ i Tho oubaeqjiont operations, condxxotod in closed cystcsira, inc'ludo a rx\>uon '") Uickot clovatox-a, arid % St. dogLs packer. Tho udxor and olovutox'^ aio provided x.lth local exhaust systoas. Ob 0 7J/2 (H-n (U9) DlvWld* nr U.l SGP 0006508 ' juSF-129-72 - 2 Goorgia Pacific Cor?, Tho Gt. Regis equipment automatically fillo multiwall bags with tho correct weight of produot material. A packer operator slips a pastcd-valvo tuck-in-Gleovo bag ovor a food opout, ouo of throe such outlets. The filled bag io dropped on a horizontal conveyor wluoh 15* from tho loading station, removes tho bags from the conveyor and loads them on pallets* The pallets, when filled, are transported to tho warehouse by a fork lift truck operator. About P.500 bags are produced during an d hour shift. Tho aforementioned mixing operations aro provided idth an alternate duot cry atom which cllrocts the material to the wot mixing area in tho southwest comer of tho workroom. Thera, n further enclosed mixing with the addition of water yields a paste product. This product io loaded into oithcr 5 Gallon or 1 gallon cans, tho covers crimped, and the cans palletized for warehousing. Four men are usually assigned to this area, TB3T3 M3P OKlSilVATIOWG It was noted that noise in tho workroom was cost evident in tho tube preparation oroa (vibrating ocroon in the hopper) and at tho dry mix filling station (St. Rogia paclcor and ' adjacent auxiliary equipment), Noiso level measurements wore obtained in those ureas and aro noted on tho attached Sound Pressure Level Survey form. II, P & p QPBPATIOWS. PtnLDISS 2X2 Tine plaster operations are conducted in a threo story corrugated stool stmeturo, Building 212. The upper floors of the building aro rolegated to tho ortorago, mixing, and coaw:y;3ng of m&torials to produce tho plaster mix, which io essentially gypsum, Tito first floor io used for produot bagging and chipping. Tho abovo operations aro conducted by a four min cm about h hours per day, once or twice a week, producing about 400 tons per month of bagged material, Boforo tho advent of dry wall end wallboard, 12,000 tons per month woro produced at this facility. The mixing end conveying operations on the upper flooro arc conducted in essentially closed syrtomr. Tho multint/oll bagging operations taka placo on tho first floor. Pates bug loading machines automatically fill tho bags to tho desired weight. At tho ilo. 1 Bates Packer, two workers pack GO pounds of molding plaster into sido opening brigs. The filled bags ora manually placed on hand trucks and removed to a shipping croa. At the Wo. 3 Batos Packer, lightweight plaster Is bagged by one worker. Tho bogged product io convoyed to the cdjaoent shipping area. SGP 0006509 7 M.-TC? at tho Wo, 3 Batoo Packer. Analysis of lodgo dust in u>tn pucicor *"*** iubwwwu a free silica content of loss then 5/i* Wo local exhaust ventilation io providod for tho Batoo Packora. Workoro at the Bo. 1 / unit wore cnrtridgo typo duot respirators} tho Wo, 3 unit operator did not veer c.-y iv /Ir-i.o.y prolootiva oquijxaont, "r ,JBSF-129-72 1 -3 ~ v Georgia Pacific Gorp* r- " ' ' '.'_ _ HI. ASD5ST0S BJCPOSUBg - JOINT gXSTflg CPaRATIOSS ' :. ; \ ''V / ''f - ' | j aCOPMSHf AMP OPBiftTXGHS Tho workroom, equipment, end operations are described in Section I. of this report* ftssre AHD OBSSK7ATIOWS Air tosfco wore taken in the breathing cone of the workers during joint systems <2zy mix operations. The following results wore obtained? Sarcrti.0 Location. Breathing Zone Asbestos Concentration 1. Packer 2. Stocker 3* Kixerraan ' A1 fibors/ml (greater then 5 microns in length) 17 fibers/ml ( " $ " ) <2 fibers/ml ( " "5 " M w ) In addition, general dr Domplea were taken at two locations in the dry mix area. The concentration of asbestos was found to bo 31 fibera/ml (greater than 3 microns in length) at a point about 20* vest of the packer and 12* northwest of the stacker. The concentration of GGbOGton was found to be 26 fibers/ml (greater than 5 microns in length) adjacent to tha mix hoppor (rdxesman'o work station). The latter test was taken when no mix preparation wac boing doho. It was nobod that the Mixerwen wore respirators during tho actual mixing operations. Neither the packer nor tho stacker wore respiratora. Xt was stated that tho packer and the stacker switch jobs about omy yjO bags of production. Tho floors, equipment, ledge surfaces, etc. in tho AO* X 60* dry mix working area wore covered with dust. Tho dust layer was constantly being built up during the various unit operations, primarily from tho heavy concentration .of dust generated by the bag filling operation. conouisicws 1. Exposuro to nolo resulting from the Joint Systems operations, ns performed at tho time of the visit, would not tend to bo detrimental to tho hearing of tho workers* 2. Tho P it 3 Building 212 operations, as performed at tho time of tho visit, would not ton to bo har.ordouo to tho health of tho workers. 3* liixposurc to asbestos from the Joint Systems operations would bo hazardous' to tho health of tho workers in tho diy mix arcs. ito items 1 and 2 above - none. nrwojsMATic&r; SGP 0006510 Dll'/.I 1' /u ' \tv I` OCT 2 01972 D1VIMC i! C'i: I' Hi r v k;ikIAL i' f mm u ucoEgza racaxuj Qorp, Ko Item 3 above - Hub the exhaust syotcaa for tho mix lioppor bo rodos&ipod end rocavetructod mid that sufficient local exhaust vtKitllatioa bo providod for the basins oporationo, both In accordance vrith 12 hlURrl 12 and 12 IfiBCflil Id* That plana for tho eforoueatloaod bo oobolttod da triplicate to this Ilivloioa prior to dastollatloa* A.JtSCIi UiJ .. .i v: ' i iilLcrt J. Koooo, H,B* Industrial itygieno Physician ZX * , y SGP 0006511 250 500 1000 2000 40. 125 SOUND PRESSURE LEVEL SURVEY UJ IU a x < zcH0Oac0 oLL z o to 1 i 4 I I <r oCQ V: < o H '27 ha-: < a. UJ Q SOUND PR i. .URE LEVEL SURVEY I iu a* Cl Vio "Uc>: . OCN o do Q c IU W*4 ODDc*o ce o CO < -J ;.z5i CuLi a SGP 0006513