Document Xmn8rd7K0LQzQ52Yddx8Kn9x

ABERDEEN CHEMICAL PLANT A INDUSTRIAL HYGIENE MONTHLY REPORT I. Routine Chemical Dosimetry Month: December* 1984 Date of Report: 1/29/85 All Sample Results Chemical VCM Lead Total Particulates < PEL No. % 85 95.5 7 100.0 5 100.0 > PEL (OVEREXPOSURES) No. % 4 4.5 0 0.0 0 0.0 Overexposures Job Class Exposure Source Reactor Operator 1.9* ppm, VCM Employee overexposed while washing out the new unit chemwash tank. Yard Operator 2.0* ppm, VCM Employee overexposed while unloading VCM railcars. Reactor Operator 1.7* ppm, VCM Employee overexposed while locating leaks at 903 recovery compressor* the new unit fresh VCM filter pack and atop 741 reactor. Electrician 1.2** ppm, VCM The employee was overexposed while greasing pump drive motors in the new unit. The specific cause is not known. However, an upset condition involving draining of the chemwash heater is suspect. Respiratory protection was worn. Respiratory protection was not worn. II. VCM Dosimet Two major changes were made in the program: Vinyl department shift workers are now being scheduled by job classifies tlon instead of by name as in the past. The scheme also results in a more random schedule with resnect to time of day and day of week. B. Dosimetry equipment handling methods were simplified by reducing the num ber of people who handle each sample. All REAL badge carbon handling is now being done by lab personnel. - ..................... -- .... ------ .. ,, -- -- - VAB.0001040184 t 4 Industrial Hygiene Monthly Report Page 2 IV. Ventilation Measurement The Anemotherm model 60 "hot-wire" velometer was returned to the factory for repair^ Jerald V. Uptain rah Distribution: JF, JWW, DWH, PJK, WFH, CRS, RAF, AHS, JRW Tom Grumbles, J. R. Drumwright, M.D. - Houston A / VAB.0001040185 ABERDEEN CHEMICAL PLANT CHEMICAL DOSIMETRY TRENDS A v9- PEL 100 VCM 0 100 r . -- ............... 1 1B.UT _ ..J. .. f Lead *& w II ; \ i .. ........ . .. | J p I 1 1 0 .................. -..... ,.-,1.................... .... V\\ /f 1 f' \ i; M * !\ / 1 I *^ 1 T' | ' J1 h | - - --.... ._____ f'' lr : t"__ 1 b 1i i; l 1| F- i\ -\ ^ if \I \ ^Sf % \ 4 *H n \ \ , i b T 11 ... 1 -- *- | , --: ! ! 1 J ;;l_________________ ........ !. 1 'll it, 1 1 .... 1s i :i J 1 ii \ iI! ^ <;--------' '< | X! ! J .... ' i-------------------------------- 1--------- T.^4, -- j ___ ^ 1 1| 'I [ 1 --------- !---- 11 ft ' ii1 T ii s i 1 i t \ rI ! !(; ; 1 ! I--------- 111! --1 1i 1 '* * ______: - . * !---------- :--------- ! i+ j1 11 i1 l______: .._! : :---------- r f!J '!--------- ;--------- !--------1--------- -------- 4 -j--------- 1 1 " tl J i t" ----------f--------- 1 1 ' 1i 1 1 *i > i* --1> i ! --------- |--------- 1--------- --------- 1--------- !---------1 ii: , --------- 1--------- j--------- 1--------- ;--------1-- ' "t ______i______ 1_____ fl--, | ,i1_______ : i 100 Total Particulates 0 VAB.0001040186 mmm MUM ABERDEEN CHEMICAL PLANT INDUSTRIAL HYGIENE MONTHLY REPORT Month: November Date of Report: 1/04/85 Routine Chemical Dosimetry All Sample Results; Chemical VCM Lead Total Particulates PEL No. % 92 97 18 95 6 100 Overexposures Job Class Exposure General Mechanic 1.1** ppm , VCM General Mechanic 2.0** ppm, VCM Yard Operator 4.6* ppm, VCM Color Weigh Compounder 56.6* microgram lead/m S No. 3 1 0 PEL Overexposures % 3 5 0 Source Employee overexposed while welding cracks in the dry blend "gump" screener bowl. The specific cause of the overex posure has not been identified. The employee spent his entire work period doing insulation work in the new Vinyl unit. The specific cause of his overexposure has not been identified. Employee overexposed while hooking/unhooking VCM railcars. Employee overexposed while weighing up micro quantities of Epistatic 112 and Epistatic 122 inside the color weigh room. * Respiratory protection was worn, ** Respiratory protection was not worn. VAB.0001040187 * Industrial Hygiene Monthly Report ^Page 2 Area VCM Sampling Seven, 8h hour area VCM samples were taken inside the V-10 building during the reclaim of "pond" resin using REAL "minimonitor" badges. The results (below) demonstrate that while VCM levels exist during the operation, they are below the "Action Level" of 0.5 ppm, and well below the permissible exposure limit (PEL) which requires respiratory protection. However, the person observing pond resin pump-up should continue to wear a respirator while in V-10. Sample Location First floor of V-10, column between and just north of dryers Sample Result, ppm, VCM 0.1 First floor of V-10, blower just north of east dryer 0.1 First floor of V-10, column between and just north of blend tanks 0.1 First floor of V-10, between 551 and 553 blend tanks 0.1 Above and between blend tanks, V-10 0.3 V-10 centrifuge deck at airline station just northwest of 550 blend tank 0.4 Just above V-10 east dryer line Sweco screener. 0.4 Equipment Calibration The fourth quarter calibration of the precision rotameter used to measure Bendix BDX 44 air pump flowrates was completed using a large "bubble tube" as a primary standard. Area Ventilation Checks The fourth quarter check of lab ventilation hood velocities and flow rates was completed. The results were reported to the lab for correction of one deficiency found. rah cc: JF, JWW, DWH, PJK, WFH, CRS, RAF, AHS, JVU, JRW Tom Grumbles, J. R. Drumwright, M.D. - Houston m 4 - ' PEL VCM ABERDEEN CHEMICAL PLANT -- II--PM-- " I Ml I CHEMICAL DOSIMETRY TRENDS 100 s b Total Particulates 1 h i ii *4 i iF 1 T 0\ i| i i > ' 1: 1 !j ! b4 bP - b T\ J * i 1! li <- ii [ f 1 i. 1 i': " | J | -t J* -, .T ! - "t> ; < H \ j ! <i ' :! ;! ;\ ^ :f p 1 T I 1. -4 ?:i T\l ! 1 41 h[ i* i :1 --. * k+ . j ri : f if' J j f \ ... 1 \ : "1 k * f j j i t 1 i ;--------\ ^ ii !j[i : - i- ! !'ir ____ l__ . i____ J *[ "1{ f* 1. 4 ii 1 M1 -: :i 1 1 1 L 1 > 1 \:; 1 ------- ,------ 1----j-------- i! j ' i i ';1 ' i :1 4 !l [l J 11 i i *^ , Lk !1 1 i .. L i. ib 11! 1 l i j. 1 ------- rI _____ _____ i____ f i --------- 1-- --- "p;---- i: ii -------r------ ---------*'------- ;*------- !i-- i =i ! 1* 1 b < i ,' 1 P L' ! L----. ----1; 1 i; ri , 1 t! j- * TM` 'tf" 1 1 1 ,"1 "* i1 ' VAB.0001040189 mm mmmmmm * ABERDEEN CHEMICAL PLANT INDUSTRIAL HYGIENE MONTHLY REPORT Month: October Date of Report: 11/15/84 Routine Chemical Dosimetry All Sample Results: Chemical VCM Lead Total Particulates Overexposures Job Class Reactor Operator < No. 88 32 3 PEL % 95.7 100 100 Exposure 23.5* ppm. VCM Reactor Operator h 2.6* ppm. VCM Reactor Operator 16.1* ppm. VCM Instrument Technician 7.6** ppm, VCM Respiratory protection was worn. Respiratory protection was not worn. X PEL Overexposure No. % 4 4.3 00 00 Source Employee overexposed while changing VCM filters in the new unit. Employee overexposed while rinsing out the chem wash tank. Employee overexposed while changing VCM filters in the new unit. Employee overexposed while changing a sightglass on the south knockout pot in the new unit recovery area. mm mrnmmmrnmm wmmmm mmmmm VAB.0001040190 Industrial Hygiene Monthly Report Page 2 OSHA Hazard Communication Ru1e An inventory of chemicals used in the plant was conducted. This will be the basis of the initial list of hazardous plant chemicals required under this OSHA standard. Respiratory Protection A report on the third quarter audit of the plant respiratory protection program was issued. The Aberdeen plant respirator training class outline was updated and copies made available for department use. Ginny Belk, R.N. Plant Nurse cc: JF, JWW, DWH, PJK, WFH, CRS, RAF, AHS, JVU, ORW Tom Grumbles - Houston J. R. Drumwright, M.D. - Houston I * VAB.0001040191 l *' ALiEKDEEN CHEMICAL PLANT CHEMICAL DOSIMETRY TRENDS Total Particulates f S1 VAB. OOO1040192 'T- - ------------,, . ABERDEEN CHEMICAL PLANT INDUSTRIAL HYGIENE MONTHLY REPORT Month: September Date of Report: 10/25/84 4 Routine Chemical Dosimetry All Sample Results: -- Chemical - < No. - PEL % - > PEL Overexposures No. % VCM . Lead, ` Total' Particulates .. _ - Qverexposures 86 95.6 8 80 5 100 ^ 4 2 0 4.4 20 0 Job Class Exposure Source Lead Operator .. -J General Mechanic, . 2.2**ppm, VCM " r 'V 1.5**ppm, VCM Employee overexposed while. working in the vicinity of a VCM filter pak filter change in the new unit. _ Employee overexposed.while changing 743 reactor chem wash sprayhead. Yard Operator 1.3*ppm, VCM Employee overexposed while hooking/unhooking VCM railcars at the VCM tank farm.. Yard Operator 1.3*ppm, VCM -- Employee overexposed while hooking/unhooking VCM. railcars at' the VCM tank. farm. " Color Weigh Compounder , 68.8* microgram Lead/m ^ ...... Employee,.overexposed while doing his routine job of color weigh-up. No specific cause for the overexposure has been identified. The two lead materials handled were Epistatic 112 and Cyastab 988. Line I Compounder 139.1* microgram Lead/m Employee overexposed while charging Epistatic 112 into blends of 34431 Natural on Line I. * Respiratory protection was worn. ** Respiratory protection was not worn. % jr VAB.0001040193 > - _ -Industrial Hygiene Monthly Report Page 2 I Respiratory Protection An audit of the plant respiratory protection program was conducted. A report on the deficiencies found, along with the associated, corrective measures, will be issued during October. Area Ventilation' Checks The third quarter check of lab and compound ventilation hood velocities and flow rates was completed. The results were reported to the two departments for correction of the deficiencies found. ".+ r T Material Safety Data Sheets Material Safety-/Data Sheets for compound were copied and issued to the Compound Operations Supervisor. Three copies of each Material Safety Data Sheet for the Vinyl Department were issued to the Vinyl Operations Supervisor.; _ ' -. - nny k, R.N. Plant urse rah cc: JF, JWW, DWH, PJK, LPS, WFH, CRS, RAF, AHS, JVU Tom Crumbles - Houston .h J. R. Drumwright, M.D., - Houston VAB.0001040194 ABERDEEN CHEMICAL PLAHT CHEMICAL DOSIMETRY TRENDS Total Particulates VAB. OOO1040195 A I ABERDEEN CHEMICAL PLANT INDUSTRIAL HYGIENE MONTHLY REPORT 'ililili' Routine Chemical Dosimetry All Sample Results: Chemical VCM Lead Total Particulates Month: August 1 Date of Report: 10/4/84 * % JL PEL No. % 85 91.4 24 96.0 6 100.0 > PEL OVEREXPOSURES No. % 8 8.6 1 4.0 0 0.0 Overexposures Job Class Chief Operator Reactor Operator Reactor Operator Reactor Operator - Exposure 1.2* ppm, VCM 10.1** ppm, VCM 1.4* ppm, VCM 2.9** ppm, VCM Source -- Employee overexposed while changing VCM filter pack filters. Employee overexposed while doing his regular job of reactor operator in the old unit. No specific cause for his overexposure has been determi n ed. Employee overexposed while sampling 745 reactor. Employee overexposed while training a fellow employee and a reactor operator in the old unit. No specific cause for the overexposure has been identified. * 4 VAB.0001040196 ayiL A ABERDEEN CHEMICAL PLANT INDUSTRIAL HYGIENE MONTHLY REPORT Month: August Date of Report: 10/4/84 Routine Chemical Dosimetry AH Sample Results: Chemical VCM Lead Total Particulates jL PEL No. % 93 91.4 24 96.0 6 100.0 7* PEL OVEREXPOSURES No. % 8 8.6 1 4.0 0 0.0 Overexposures Job Class Chief Operator i* Reactor Operator *- Reactor Operator Reactor Operator Exposure 1.2* ppm, VCM 10.1** ppm, VCM 1.4* ppm, VCM 2.9** ppm, VCM Source Employee overexposed while changing VCM filter pack filters. Employee overexposed while doing his regular job of reactor operator in the old unit. No specific cause for his overexposure has been deter mined. Employee overexposed while sampling 745 reactor. Employee overexposed while training a fellow employee and a reactor operator in the old unit. No specific cause for the overexposure has been identified. VAB.0001040197 Industrial Hygiene Report - August Page 2 Overexposures Exposure Source Dryer Utility 1.1** ppm, VCM Employee overexposed while being trained as a reactor operator in the old unit. No specific cause for the overexposure has been identified. Yard Operator 2.6* ppm, VCM The employee was overexposed while hooking/unhooking VCM railcars at the VCM tank farm. Mechanic 1.9** ppm, VCM Employee overexposed while blanking out D-300 reactor condenser prior to condenser drilling. Mechanic 6.2* ppm, VCM Employee overexposed while changing out two Corken compressors at the VCM tank farm. Line Compounder 44.4* microgram Lead/m^ The product being produced during sampling time contained no lead. The source of the overexposure is not clear; it may be related to housekeeping in the area. Respiratory protection was worn. ** Repsiratory protection was not worn. VCM Area Monitoring Four, forty-minute VCM area samples were taken at the top of 502 blend tank during the transfer of 5385 resin slurry from D-700 reactors using REAL "Minimonitor" badges. Wind direction was from west to east, ranging between zero and five miles per hour. The results indicate, as have previous studies, that VCM concentrations atop blend tanks may reach levels that require the use of respirators during slurry transfer, depending on a variety of variables including wind conditions. Because of this, respirators should continue to be used during work atop the tanks. No. Location Result (ppm, VCM) 1 Top and SW of 502 on Safety Railing 2 Top and NW of 502 on Safety Railing 3 Top and SE of 502 on Safety Railing 4 Top and NE of 502 on Safety Railing 0.1 < 0.1 < 0.1 3.3 VAB.0001040198 Industrial Hygiene Report - August Page 3 1 Plasticizer-in-Air Monitoring The results of plasticizer-in-air samples taken at the mills on Compound Lines I and III during July appear below. Sampling equipment consisted of Bendix BDX 44 air pumps equipped with Gelman 37MM cellulose filters. Sample analysis involved solvent extraction, followed by liquid chromatography. The single high result occurred during a period in which the "belt" of compound near the sampler was "smoking" excessively (for no obvious reason). A similar sample (#3), taken two hours later and at the same location, showed a hundred-fold decrease. Compound No. Li ne Date (Time) Compound Plast. Location Result (mg/m3) 1 3 7/23/04 38601 Blk 610P SW Corner, E Take Off Belt 22.7 > (1118) 3 3 7/23/84 38601 Blk 610P SW Corner, E Take Off Belt 0.2 (1318) 4 3 7/25/84 3934-152-Blk 610P SE Corner, W Take Off Belt 0.2 (1012) 5 3 7/25/84 3934-152-Blk 610P SW Corner, E Take Off Belt 0.2 (1012) 2 1 7/23/84 34642 Nat 108P Oper. Station at Mill "Face" 0.2 (1314) * 6 1 7/25/84 34642 Nat 108P Oper. Station at Mill "Face" 0.2 (1055) Equipment Calibration The third quarter calibration of the precision rotameter used to measure Bendix BDX 44 air pump flowrates was completed using a large "bubble tube" as a primary standard. No significant drift was seen. Ginny^fJffik, R.N. Plant Nurse rah cc: JF, JWW, DWH, PJK, LPS, CRS, RAF, AHS, JVU Tom Grumbles, J. R. Drumwright, M.D. - Houston VAB.0001040199 i % i / %C PEL I ABERDEEN CHEMICAL PLANT I I ! II' ~ - 1 -Ttf T -- ---------- ----------------------- "--------------- ~ ' -------- ---- CHEMICAL DOSIMETRY TRENDS hf 1 r' ' -I Total Particulates * + - * T r xi ro a> _ OJ . t2 ^ C M a^ > o a. 4| 13 d 5 *;> * 19 32 k i9 83 . Jan. Feb. M ar. A pr. May ' June Ju ly Aug. S ept. O ct. Nov. Dec. Jan. Feb. M ar. A pr. M ay June Ju ly Aug. S ept. O ct. Nov; . Dec. h i ` 19 84 : JW : VAB. OOO1040200 * r ABERDEEN CHEMICAL PLANT INDUSTRIAL HYGIENE MONTHLY REPORT Month: July Date of Report: Aug, 14, 1984 Routine Chemical Dosimetry All Sample Results: PEL y PEL Overexposures No. % No. % Chemical VCM Lead Total Particulates 90 97 25 100 4 100 3 0 0 3 0 0 Overexposures Job Class Exposure Source Lead Operator 1.3** ppm,VCM 1. The employee states that he spent his entire shift inside the vinyl control room. No reason for his overexposure has been identified. Yard Operator 1.7* ppm, VCM 2. Employee overexposed while hooking/unhooking VCM railcars and Corken compressor for maintenance at the VCM tank farm. Mechanic 50.3* ppm, VCM 3. Employee overexposed while changing out a valve in a VCM line in the old unit. * Respiratory protection was worn. ** Respiratory protection was not worn. J VAB.0001040201 A VCM Area Monitoring One sample was taken at each of the ten large reactor condensers. using REAL minimontor badges. The elevated results in the new unit (741 -745) were traced to leaks repaired on the same day of sampling. Date # Reactor 7/25/84 7/25/84 7/25/84 7/25/84 7/25/84 7/26/84 7/26/84 7/26/84 7/26/84 7/26/84 741 742 743 744 745 D300 D400 D500 D600 D700 Plasticizer-in-air Monitoring Resin 5425 5425 5425 5425 5265 5385 5385 5385 5835 5385 Sample Time 8 Hrs., 17 Min. 8 Hrs., 17 Min. 8 Hrs., 17 Min. 8 Hrs. , 17 Min. 8 Hrs., 17 Min. 7 Hrs., 50 Min. 7 Hrs., 50 Min. 7 Hrs., 50 Min. 7 Hrs., 50 Min. 7 Hrs., 50 Min. Result ppm, VCM 1.1 0.8 1.5 0.9 0.3 <0.1 <0.1 0.3 < 0.1 0.4 Six plasticizer-in-air samples were taken at the mills on Compound Lines I and III, using Bendix BDX44 air pumps and Gelman cellulose filters. The results will be reported following lab analysis of the samples. Lead Dosimetry Analysis The plant began using the services of CTEK, Inc., a Dallas, Texas based laboratory, for analysis of routine lead dosimetry samples. The benefits gained are reduced cost and reduced analysis turn-around time. Noise Control Report and Plan The annual Noise Contol Report and Plan was issued. OSHA "Hazard Communication" Rule Tentative plans were laid for achieving compliance with the OSHA "Hazard Communication" rule. The first step/ establishing a list of plant chemicals by manufacturer and tradename, is planned to commence during August. Material Safety Data Sheets A copy of nine Material Safety Data Sheets were issued to the Maintenance Department. Material Safety Data Sheets for Plasticizer and Dry Blend were copied and issued to the Compound Operations Supervisor. Plant Nurse rah cc: JF, JWW, DWH, PJK, LPS, WFH, CRS, RAF, AHS, JVU Tom Grumbles - Houston J. R. Drumwright, M.D. - Houston VAB.0001040202 * * ) %< PEL VCM ABERDEEN CHEMICAL PLANT CHEMICAL DOSIMETRY TRENDS A ~<-; xi ^ -` p 'll ,, . n iz S3iz -- to c*_ -- > '.j c ^ * :- >* no q. *; ^ 'j ^j a* ^ j-- ua t; co o jj cn * ^^ cl '**> ir n ->' 3 - |1 Qa; i> C> cj a- & 19 .82 19 _$3_ ' ,9 84 i a VAB. OOO1040203 3"VU~ % ABERDEEN CHEMICAL PLANT INDUSTRIAL HYGIENE MONTHLY REPORT 1. Routine Chemical Dosimetry All Sample Results: Chemical VCM Lead Total Particulates Month: June Date of Report: July 19, 1984 PEL No. % PEL OVEREXPOSURES No. % 93 96 10 100 5 100 4 0 0 4 0 0 Overexposures Job Class Chief Operator Lead Operator Rx Operator Mechanic Exposure 3.7*ppm, VCM 4.8*ppm, VCM 3.9*ppm, VCM 82.2*ppm, VCM Respiratory protection was worn. A Respiratory protection was not worn. Respiratory Protection Source Employee overexposed while blocking in a VCM transfer pump which had a blown seal. Employee overexposed while pumping "pond" resin. Employee overexposed while changing VCM filter pak filters. Employee overexposed while removing the main VCM valve going to the recovery system in the new unit. 3M airhat battery charging was made more reliable when compound operations provided each airhat wall case with an internal 110V electrical outlet and battery charger. Dosimetry Equipment The lab evaluation of the passive monitor marketed by GMD Systems, Inc. was completed during June. Future use of the device will be reconciled following issue of the report on the evaluation July. VAB.0001040204 4 Industrial Hygiene Report Page 2 Program Audits Routine Dosimetry The second quarter audit of dosimetry frequency versus plan was conducted. No deficiencies were found. A An audit of the plant respiratory protection program was conducted. Recommenda tions for improvement, based on the audit results, were made and discussed with each department that uses respirators. Material Safety Data Sheets MSDS were reviewed by the Compound Department. A copy of each MSDS that pertains to the Compound, Dry Blend, and Plasticizer Department will be issued to the Compound Operations Supervisor. rah cc: JF, CRM, DWH, PJK, LPS, WFH, CRS, RAF, RAM, AHS, JVU Tom Grumbles - Houston J. R. Drunwright, M.D. - Ponca City VAB.0001040205 . * ABERDEEN CHEMICAL PLANT A CHEMICAL DOSIMETRY TRENDS %C PEL TOO VCM 0 TOO r i V Lead 0 Tota.l Particulates O ,h ( 0 n *- >4 - -- w + CO Q, >o O? <-> o o < CO O 2 O t------- f ---- *% *4 'A* CO O>s rT3 j>" *V) CL w O) O o rr ij o> O id iTJ CL >* 00 CL ^U O ^ Q3 ^3 a> U O . U <C CO 19 VAB.0001040206 J MU A ABERDEEN CHEMICAL PLANT INDUSTRIAL HYGIENE MONTHLY REPORT Routine Chemical Dosimetry A11 Sample Results:. Month of: May Date of Report: June 19, 1984 PEL PEL Overexposures Chemical VCM Lead Total Particulates Overexposures Job Class Chief Operator Reactor Operator Reactor Operator Reactor Operator 81 88 11 39 97.5 1 4 100. 0 12 2.5 0 Exposure 16.0** ppm, VCM 1.8* ppm, VCM 6.0** ppm, VCM 3.7** ppm, VCM Source Employee overexposed while disconnecting and unplugging a lip seal line on D-300 reactor seal. Employee overexposed while changing VCM filter pack filters. Employee1 performed his regular job of reactor operator. No specific cause of his over exposure has been identified. The employee did not perform his regular job of reactor operator. Instead, he was assigned to the tasks of painting handrails at the east incincerator and assisting electronics with small breaker labeling in the V-ll dryer area. No specific cause for his over exposure has been identified. VAB.0001040207 Overexposures - Continued Job Class Dryer Utility Exposure 10.7* ppm, VCM Yard Operator 2.5* ppm, VCM General Mechanic General Mechanic General Mechanic Maintenance Supervisor 2.5* ppm, VCM 2.2* ppm, VCM 1.3** VCM 1.5** ppm, VCM Maintenance Superintendent 1.4** ppm, VCM * r*.- Color Weigh Compounder 118.9* microgram Lead/m3 * Respiratory protection was worn. ** Respiratory protection was not worn. Source Employee overexposed while monitoring blend tank levels in V-10 during pond resin reclaim. Employee overexposed while assisting two general mechanics who replaced two Corken compressors at the VCM tank farm. Employee overexposed while repairing a Corken compressor at the VCM tank farm. Employee overexposed while blanking out 904 VCM recovery compressor. Employee overexposed while changing a seal on D-300. The employee spent approximately five minutes working near the new vinyl unit dump Sweco and approximately two minutes near the old vinyl PVC tank. The specific cause of his over exposure has not been identified. m Employee performed his regular job of maintenance superintendent, which took him to all parts of the pihnt throughout the work period. No specific cause for his overexposure has been identified. Employee performed his regular job of color weighup, handling Halbase 100EP and Cyastab 988. No specific cause of his over exposure has been identified. VAB.0001040208 mm mmrnmmmmmMmmmmmmm A VCM Area Samplin A second set of four VCM area samples were taken in the bio-disc water treatment area, using: REAL "Minimonitors", Wind velocity ranged from 0 to 5 miles per hour, direction being from north to south. Sampling time was eight hours. This set of sample results agrees with the one in April, both demonstrating the effectiveness of the recently installed ventilation exhaust blowers in reducing VCM levels. Similar measurements taken during 1983 showed results averaging 19,9 ppm and ranging from 0,6 to 87.9 ppm, VCM, Sample Location Result - ppm, VCM___________________ 1st Set CApril, 1984) 2nd Set (May, 1984) Just north of middle bio-disc hut 0.2 0.1 West side of middle bio-disc hut * Just south of middle bio-disc hut 0.1 0.2 0.2 0.1 West side of east bio-disc hut 0.1 0.1 Area Ventilation Checks The second quarter check of lab and compound ventilation hood velocities and flow rates was completed. The results were reported using a new format, which shows the results of the previous check. Respiratory Protection Plant Breathing Air System v- * Several repairs of the breathing air system were made, including replacement of sections of split pipe and faulty pressure regulators. The system is now operating correctly. VCM Cannister Gas Masks Removal of VCM cannister gas masks from plant service was completed. Noise The report on the plant noise survey conducted on April 10-11, 1984, by the Medical Department was received from them during May. The annual Noise Control v Report and Plan was written, using the results from the Medical Department survey, and submitted for review. VAB.0001040209 GMD Systems, Inc. Passive Monitor The second phase of the evaluation of the passive, VCM monitor marketed by GMD Systems, Inc. was completed. The results of the lab-based reproducibility studies will be reported by D. S. Cox, Manufacturing Chemist. Changeover from use of the REAL "Minimonitor" to that of the GMD device is anticipated, pending the reported results. * Equipment Calibration The second quarter calibration of the precision rotameter used to measure Bendix BDX 44 air pump flowrates was completed using a large "bubble tube1' as a primary standard. No significant drift was seen. Material Safety Data Sheets MSDS were reviewed by the Vinyl Department and the Maintenance Department. Three copies of each MSDS that pertain to the Vinyl Department will be issued to the Vinyl Operations Supervisor. The Maintenance Department will be issued a copy of nine MSDS to update their book. Ik, R.N. urse rah cc: JF, CRM, DWH, PJK, LPS, WFH, CRS, RAF, RAM, AHS, JVU Tom Grumbles - Houston J. R. Drumwright, M.D. - Ponca City \ 44 VAB.0001040210 4J I ABERDEEN CHEMICAL PLANT CHEMICAL DOSIMETRY TRENDS 1 A Tota.l Parti culates i . j <WI I H1 wmmmmmmmfKmmmmmmrnmmmmmimmmmmmmmmmmmm f h4 , . VAB.0001040211 1* t ABERDEEN CHEMICAL PLANT INDUSTRIAL HYGIENE MONTHLY REPORT Month of Date of Report April S/9/84 ROUTINE CHEMICAL DOSIMETRY All Sample Results: Chemical VCM Lead Total Particulates < PEL No. % > PEL (OVEREXPOSURES) No. 101 94.4 8 88.9 5 1100.0 6 1 0 5.6 11.1 0.0 OVEREXPOSURES Job Class General Mechanic General Mechanic Exposure 5.4*ppm, VCM 2.4* ppm, VCM General Mechanic 2.2* ppm, VCM Instrument Technician 9.3** ppm, VCM Rx Operator 1.4* ppm, VCM Rx Operator 145.6* ppm, VCM Line Compounder 39.8* micrograms Lead/m^ Respiratory protection was worn. Respiratory protection was not worn. Source Employee overexposed while changing safety discs on D-400 reactor. Employee overexposed while changing a sightglass at the horizontal VCM storage tanks in the VCM tank farm. Employee overexposed while cleaning a sightglass at the horizontal VCM storage tanks in the VCM tank farm. Employee overexposed while repairing the batch water stripper tubing. Employee overexposed while checking VCM leaks in the old unit. Employee overexposed while changing VCM filter pack filters. Employee overexposed while charging Halbase 100EP on compound line III. VAB.0001040212 It Industrial Hygiene Monthly Report Page 2 VCM AREA SAMPLING Four VCM area samples were taken in the biodisc water treatment area, using REAL minimom tors Wind velocity ranged from 0 to 5 miles per hour, direction being from west to tj * s Sampling time was seven hours and fifteen minutes. 9-1 ir S The samples were taken to measure the effectiveness of recently installed venti lation exhaust blowers in reducing area VCM levels. Similar measurements taken during 1983 showed results averaging 19.9 ppm and ranging from 0.6 to 87.9 ppm, VCM. The evident reduction in VCM levels will be checked again during May. Sample Location Just north of middle biodisc hut West side of middle biodisc hut Just south of middle biodisc hut West side of east biodisc hut PLANT NOISE SURVEY Result ppm, VCM 0.2 0.1 0.2 0.1 / 0' 0i o] f\ t c> ! Pat McCoombs and Bill Richards of the Medical Department conducted an extensive plant noise survey on April 10-11, 1984. The work included property line noise measurements, noise level "contouring" within the plant, and noise dosimetry. Their report is expected to be issued during May. RESPIRATORY PROTECTION Scott Sling Paks The relatively short waist straps provided with the five, recently received Scott sling paks were replaced with longer ones made from materials provided by Scott Aviation. Training of vinyl shift supervisors on bottle changeout procedures for the sling paks was completed. VCM Cannister Gas Masks All VCM cannister gas masks were removed from plant service except those located in the Vinyl Departments area. A inny tfjpik, R.N. Plant/mirs e rah cc: JF, CRM, PEM, PJK, LPS, WFH, CRS, RAF, RAM, AHS, JVU Tom Grumbles - Houston J. R. Drumwright, M.D. - Ponca City VAB.0001040213 ABERDEEN CHEMICAL PLANT A " CHEMICAL DOSIMETRY TRENDS c c *Y MM wmmtmm mm VAB. OOO1040214 * ABERDEEN CHEMICAL PLANT ROUTINE CHEMICAL DOSIMETRY SUMMARY Month of: Date Of Report: cc: JF, CRM, PEM, PJK, LPS, WFH, CRS, RAF,, RAM, AHS Tom Grumbles - Houston J. ft. Drumwright, M.D. - Ponca City March, 1984 April 12, 1984 ALL SAMPLE RESULTS: Chemical VCM Lead Total Particulates 4 < PEL No. i 79 91.9 21 95.5 24 100.0 > PEL (OVEREXPOSURES) No. % 7 8.1 1 4.5 0 0.0 OVEREXPOSURES Job Class Chief Operator Reactor Operator Reactor Operator General Mechanic Exposure 454* ppm. VCM 3.7** ppm. VCM 3.8** ppm, VCM n 1.3** ppm. VCM Source Employee overexposed while helping control an emergency VCM release at the VCM tank farm. Employee performed routine duties of reactor operator in the new vinyl unit. No specific cause has been identified. Employee performed routine work of reactor operator. No specific cause has been found. Employee overexposed while cfcngiif out a Corken con- VAB.0001040215 * Routine Chemical Dosimetry Summary Page 2 OVEREXPOSURES - Continued Job Class Exposure Source General Mechanic General Mechanic 1.5** ppm, VCM 1.7** ppm, VCM Employee overexposed while tightening a leaking con denser lid on D-600 reactor. Employee overexposed while repairing the dryer line #2 centrifuge while pond resin was being reclaimed on dryer Line I. General Mechanic 14.8** ppm, VCM Employee overexposed while changing 742 reactor slow vent line. Line Compounder 87.6* micrograms Lead/m^ Employee overexposed while charging blenders on Com pound Line I. * Respiratory protection was worn. ** Respiratory protection was not worn. VCM Area Sampling Three VCM area samples were taken on the Toof of the V-ll dryer building during roof repair on 3/16/84. The samples were taken using REAL mimimonitors. Kind velocity ranged from 0 to 5 miles per hour, direction being from northwest to southeast: Sample Location Sample Time (Hrs.-Min.) Result ppip, VCM Comments On safety railing east of 655 blend tank 7-10 0.4 Coarse 5385 resin in 655 On Safety railing east * of and between 653 and 651 blend tanks 7-8 2.1 5305 resin in 651 and 653 On safety railing north of 650 blend tank 7-6 0.7 5305 resin in 650 Area Ventilation Checks The second quarter check of lab and compound ventilation hood velocities and flowrates was completed. No serious deficiencies were discovered. VAB.0001040216 Routine Chemical Dosimetry Summary Page 3 Noise Final arrangements for a plant noise survey to be conducted by the Medical Department on April 10-12, 1984 were made. h Total Particulates Analysis A five-place analytical balance, suitable for performing total particulates analyses, was purchased and received by the laboratory. Plans are to do all such analysis at Aberdeen beginning in April, 1984. Equipment Calibration The second quarter calibration of the precision rotameter used to measure Bendix BDX 44 air pump flowrates was completed using a large ,fbubble tube" as a primary standard. No significant drift was seen. Program Plans Both the Respirator Program and the Work Environment Hazard Control Plan were updated and approved. rah VAB.0001040217 p. f' ABERDEEN CHEMICAL PLANT' CHEMICAL DOSIMETRY TRENDS t Tota.1 Particulates F r* i > r f II- ! iniMmm mmm *t i j * * t * i i i I I, b k P + i 1 1 m mmmmmmmmmm VAB. OOO1040218 t t r ABERDEEN CHEMICAL PLANT INDUSTRIAL HYGIENE ---------------------------------------------------------------------------------------------------------- MONTHLY REPORT -- -- -_ - ----- Month of: February Date of Report: April 3, 1984 1. ROUTINE CHEMICAL DOSIMETRY All Sample Results: Chemical VCM Lead Total Particulates Overexposures < PEL No. % 25 96.2 32 97.0 12 100.0 > PEL (OVEREXPOSURE] No. % 1 3.8 1 3.0 0 0.0 Job Class Line Compounder Exposure 61.1* Micrograms Lead/nH Chief Operator 29.1* ppm, VCM *Respiratory protection worn 2. NOISE CONTROL Source Employee overexposed while charging Line III blenders No specific cause has been identified. Employee overexposed while helping change VCM filter pack filters. Resin deboxing area noise was reduced during February by insulating the cone at the bottom of the Sweco screener feed hopper. Noise level measurements taken before and after the insulation, using a General Radio Model 1565-B sound level meter, were : Location 1. 2 ft. from cone, on mezzanine 2. 16 ft. from cone, at ground level Noise Before Insulation ------------------------------------ - ----------------------------- - - Level, dBA After Insulation 110 98-103 95 92 3. Main traffic isle. at south door* * 93 - *84 dBA with hopper vibrator "off". 89 VAB.0001040219 Industrial Hygiene Report Page 2 3. GMD SYSTEMS, INC. PASSIVE MONITOR The lab-based familiarization study of the passive, VCM monitor marketed by GMD Systems, Inc. was completed. The second phase of the evaluation, involving reproducibility studies, was begun. A R.N. y urse r/ cc: JF, CRM, PEM, PJK, LPS, WFH, CRS, RAF, RAM, AHS Tom Grumbles - Houston J. R. Drumwright, M.D. - Ponca City VAB.0001040220 V * ( c ABERDEEN CHEMICAL PLANT CHEMICAL DOSIMETRY TRENDS 100 Total * Particulates -- - - -* t -* v ) r (0 ini J + *i f #+ * r f m*m m VAB.0001040221 * mm* mmm ABERDEEN CHEMICAL PLANT ROUTINE CHEMICAL DOSIMETRY SUMMARY Month of: January, 1984 Date Of Report: February 16, 1984 cc: JF, CRM, PEM, PJK, LPS, WFH, CRS, RAF, RAM, AHS Tom Grumbles - Houston J. R. Drumwright, M.D. - Ponca City ALL SAMPLE RESULTS: Chemical VCM Lead Total Particulates No. 86 4 4 PEL t~ > PEL (OVEREXPOSURES) w.-- -------------------------------------- 89.6 80.0 100.0 10 1 0 10.4 20.0 0.0 OVEREXPOSURES Job Class Color Weigh Compounder Reactor Operator Reactor Operator Vinyl Lead Operator Exposure Source 95.2*, Micrograms Lead/m3 Employee did routine job of color weighup, including Hal base 100EP and Cyastab 988. 1.2* ppm, VCM Employee overexposed while changing VCM filter pack filters in the old unit. 1.4* ppm, VCM Employee overexposed while conducting a VCM leak check in the old unit. 1.5 ppm, VCM ? Employee worked inside the vinyl control room during a period in which the control room air supply system was inoperative due to failure of a blower during cold weather. VAB.0001040222 OVEREXPOSURES - Continued Job Class Vinyl Shift Supervisor General Mechanic General Mechanic Electrician General Mechanic General Mechanic General Mechanic *Respi ratory^Yotecti on Worn A Exposure 2.4* ppm, VCM 1.6 ppm, VCM 1.6 ppm, VCM 2.0 ppm, VCM 2.4* ppm, VCM 3.3 ppm, VCM 21.3* ppm, VCM Source Employee overexposed while checking VCM filter packs in both vinyl units. Employee overexposed while performing several VCM leak repairs. Employee overexposed while insulating piping at grade level on the west side of D-400, D-500, and D-600 reactors. The specific source of VCM has not been identified. Employee repaired a dry blend boxing hopper dust collector and a roll-up, traffic door just north of the Compound Shift Supervisor's office. The source of VCM has not been identified. Employee overexposed while removing a blank from the end of a VCM line next to D-300 reactor to check for pluggage. Employee repaired the steam tracing on an alcohol transfer line from the P-1 building to the plasticizer tank farm. No specific source of VCM has been identified. Employee overexposed while repairing a VCM recovery compressor leak. rah 4 VAB.0001040223