Document DvYvm6DyY4ydq0vNGvN3waY8N
ENVIRONMENTAL HEALTH SURVEY FOR 1980
CHLORINATED METHANES PLANT LOUISIANA DIVISION
Submitted by: R* J* Bordelon
DO 101.939 CONFIDENTIAL
CHLORINATED METHANES PLANT INDUSTRIAL HYGIENE JOB ANALYSIS
A- Introduction
The Plaquemine, Louisiana Chlorinated Methanes Plant was MONITORED DURING 1980 IN A ROUTINE' AND CONTINUAL SURVEY OF THE CHEMICALS AND NOISE PRESENT IN THIS BLOCK* LISTED BELOW ARE THE CHEMICALS PLUS NOISE, WITH THEIR RESPECTIVE STANDARDS:
Chemical
Standard (TLV)
Methyl Chloride Vinyl Chloride Methylene Chloride Chloroform Carbon Tetrachloride Methanol Ethylene Dichloride B-trichloroethane Dimethyl Ether 1,1,1 Trichloroethane (degreaser) Chlorine Hydrochloric Acid Sulfuric Acid Noise
50 ppm 1 PPM
200 ppm 10 PPM 5 PPM
200 ppm 10 PPM 10 PPM
H00 ppm 350 ppm 3 mg/m~3 7 mg/m-3 1 mg/m-3
85 DBA
-1-
DO 101940 confidential.
B. Conclusion from 1980 Survey
All employees in the CMP block were monitored using personnel
monitors- Most were monitored two or three times during the
YEAR AND ALL JOBS WERE COVERED- As IN THE PREVIOUS YEAR THE
DATA REFLECTS THAT EMPLOYEES ARE WITHIN THE THRESHOLD LIMITS WHEN PERFORMING THEIR ROUTINE JOBS- PEOPLE ARE PROVIDED WITH AND REQUIRED TO WEAR PROPER PROTECTIVE EQUIPMENT WHEN A JOB HAS THE POTENTIAL OF EXPOSING THEM TO LEVELS WHICH MAY EXCEED
THE STANDARDS- To KEEP A CLOSER WATCH ON SUCH JOBS THERE
WILL BE MORE EXCURSION SAMPLES IN THE 1981 MONITORING PROGRAM- This WILL HELP TO PINPOINT THE JOBS WHICH REQUIRE CLOSE ATTENTION-
There is a decline in the use of chlorothene to clean pump parts* It was discovered that much of the cleaning can be ACCOMPLISHED BY USING LOW-PRESSURE STEAM AND WATER- THE MATERIAL CONTROLLER REPORTS THAT HE IS HAVING TO ORDER FEWER DRUMS OF CHLOROTHENE THAN IN THE PAST, DESPITE THE INCREASE IN PUMP REPAIR WORK OVER PREVIOUS YEARS-
Changes in the standards for 1980 effecting this plant are:
Chlorine - ceiling lowered to 1 ppm (3mg/M-3)-
Carbon tetrachloride - TLV lowered from 10 ppm to 5 PPM-
Ethylene dichloride - TLV lowered from 50 ppm to 10 PPM-
Noise - The average noise level for the 0T job was greater
than in past years- This resulted from a single exposure
reading OF 170% WHICH occurred when the operator was
venting down M-l filters for approximately one hour prior to RECHARGING THESE FILTERS* HEARING PROTECTION WAS USED, BUT THIS HIGH READING POINTS TO A DEFINITE PROBLEM-
1 O J <54 j cNF-TOFNTrA!..
-2-
C* Additional Comments
The waste heat boiler has done a lot to reduce the need for
VENTING THE V"800's TO ATMOSPHERE IN ORDER TO READY THEM FOR
RECHARGING* HOWEVER, THERE ARE PERIODS WHEN THE WASTE HEAT
BOILER IS DOWN OR NOT OPERATING PROPERLY AND THE V"800#S HAVE
TO BE VENTED TO ATMOSPHERE* THE AIR MONITORS SUPPORT EVIDENCE OF SUCH ACTIVITY*
People have developed a greater awareness toward protection WHICH CAN BE PROVIDED BY EQUIPMENT AVAILABLE TO THEM TO REDUCE THEIR EXPOSURES TO VARIOUS CHEMIMCALS THEY ARE TAKING ADVANTAGE OF THE PROTECTION AFFORDED BY NITRILE GLOVES OVER THE NEOPRENE TYPE, USE OF DUST MASKS, TYVEK COVERALLS, ETC* We HAVE ALSO PURCHASED AN EMERGENCY WORK SUIT WHICH CAN FIT OVER A SCOTT AIR PAK TO PROVIDE COMPLETE v PROTECTION TO THE INDIVIDUAL EVEN IN HEAVY SPILLS*
The new change room is complete with a new set of lockers to
COMPLY WITH GOVERNMENT REGULATIONS REQUIRING SEPARATE LOCKERS
FOR WORK AND STREET CLOTHES AND THEREFORE MINIMIZE THE POSSIBILITY OF CONTAMINATING CLOTHES WORN HOME*
^ ^
A NEW AND MORE RIGID RESPIRATOR POLICY IS GOING INTO EFFECT*
IT WILL SPELL OUT THE CARE AND CLEANING OF THE RESPIRATORS AS
WELL AS THEIR USES* ALL PERSONNEL UNDERWENT FIT "TESTING OF THE SCOTT"0"VISTA AND SCOTT AIR MASKS DURING DECEMBER 1980, THUS COMPLYING WITH GOVERNMENT REGULATIONS COVERING RESP I RATORS*
-3-
DO 101.94? CONFIDENTIAL
D* Monitoring Results
Personnel monitoring using charcoal adsorption tubes was EMPLOYED TO COVER ALL THE JOBS FOR THE FOLLOWING CHEMICALS: METHYL CHLORIDE, VINYL CHLORIDE, DIMETHYL ETHER, METHYLENE CHLORIDE, CHLOROFORM, CARBON TETRACHLORIDE, ETHYLENE DICHLORIDE, AND B~TRICHLOROETHANE THE SAMPLES REVEALED THE FOLLOWING RESULTS, BASED ON TWA*
Chemical
Stan-
dard
High/Job Average
High/Indiv- Sample
Methyl Chloride 50 0T
2*3 EDO
7-A
Vinyl Chloride
1 All Samples <0-1 All Samples <0-1
Dimethyl Ether aoo All Samples
<0*1
All Samples
<0-1
Methylene Chloride
200 EDO
Loader
1.8 EDO
1-8
13.8
Chloroform
10 EDO
0-8 EDO
a.5
Carbon Tetrachloride
5 SS
0-5 EDO SS
2-5
Ethylene Dichloride
10 All Samples <0.1 Loading Coord* 0*3
B"Trichloro-
ethane
10 All Samples
<0-1
All Samples
<0-1
DO 1.01943 CONFIDENTIAL.
-U-
D. Monitoring Results (cont'd)
Some excursion monitoring was done on certain jobs of short duration with THE POTENTIAL OF HIGH EXPOSURE LEVELS* (Numbers shown ARE HIGH READINGS IN PPM)
Job: OT CATCHING SAMPLES IN DISTILLATION AREA (10-12 MIN
/
M-l M-2 M-3 M EDC B-tri
12*1
0*4
1*0
36*6
2*1
0*0
Job: Millwright replacing leaking T-800 PUMP (22 MIN*)
M-l M-2 M-3 M-4 EDC B-tri
62*2
6*4
3*1
0*0
0*0
0*0
Job:
Loader - loader not wearing pump; pump mounted at
breathing zone level above open dome of M-2 T/C while loading* Temperature 72F* (35 min*)
M-l M-2 M-3 M-4 EDC B-tri
2*9 161*8 2*8 0*0 0*0 0*0
-5-
DO 101944 CONFTDENTIAL
D* Monitoring Results (cont'd)
Area monitoring was employed to check for methanol and 1,1,1 TRICHLOROETHANE (a DEGREASER USED IN THE CLEANING OF PUMP parts)* For methanol, samples were collected in saran bags AT VARIOUS POINTS THROUGHOUT THE PLANT, SAMPLE RESULTS
AVERAGED, AND TWA FIGURES WERE OBTAINED BY USING THE AVERAGE
TIME SPENT IN THESE AREAS FOR EACH JOB* ALL OF THE MONITOR
ING for CHLOROTHENE was done in the warehouse where it is USED TO CLEAN PUMP PARTS* THE HIGHEST READING WAS 7*2 PPM,
WHICH WAS TAKEN CLOSE TO AN OPEN CONTAINER IN A MILLWRIGHT'S WORK AREA*
Monitoring for chlorine, hydrochloric acid, and sulfuric acid WAS CONDUCTED BY SCRUBBING AIR WITH DISTILLED WATER FOR HCl
AND SULFURIC ACID, AND WITH 1*0 N NaOH FOR CHLORINE FOR 7"8 HOURS PER SAMPLE* A TOTAL OF 16 SAMPLES WERE TAKEN*
Highs in ppm
Chemical
Stan-
dard
High/Job Average
High/Area Reading
Methanol
200 SOT
2*2 Decks above Lewis U* 15*9
1,1,1 Tri-
350 Mtl* CONTRL* 2*0 Warehouse only
chloroethane
7*2
Chlorine
1 All
<0*01 All
<0-01
Hydrochloric Acid
5 OT
0*06 Distillation, grnd* 0*94
Sulfuric Acid *25 All
<0*1 K - 350
0-09
-6-
DO 101945 CONFTDENTTAL
INDUSTRIAL HYGIENE JOB ANALYSIS VERSUS
% OF HYGIENE STANDARD
Standard
100% 50-100% 25-50% 10-25% <10%
Methyl Chloride Vinyl Chloride Methylene Chloride Chloroform Carbon Tetrachloride Methanol Ethylene Dichloride B-TRICHLOROETHANE Dimethyl Ether 1,1,1 Trichloroethane Chlorine Hydrochloric Acid Sulfuric Acid Noise
50 ppm 1 PPM
200 ppm 10 ppm 5 PPM
200 ppm 10 PPM 10 PPM
400 ppm 350 ppm 3 mg/M-3 7 mg/M-3 1 mg/M-3 85 DBA
~ -
-
1
- 14 - 14 - 14 - 14
1 13 - 14 - 14 - 14 - 14 - 14 - 14 - 14 - 14 A 18
TOTAL
01
4 2 189
% of TOTAL JOBS
0-00 0.51
2-04 1-02 96-43
Data Based on TWA
\r
l. -7-
DO 101.946 CONFIDENTIAL
ENVIRONMENTAL HEALTH SURVEY (NOISE BY JOB)
Job
Technical Shift Supervisor Operations Specialist Sr* Operations Technician Operations Technician
EDO Supervisor EDO Millwright EDO misc* maintenance
Loading Coordinator Loader Material Controller EnviRONMENTAL1ST Assistant Chemist Instrument Technician Fitter and Ironworker Electrician Laeorer Secretary Computer Technician
Dosimeter Reading (A SCALEjI^i
Avg* 1
09 03 03 47 62-c11 11 28 09 18 07 03 07 08 58 ^ 08 32 00 03
DO 101947 CONFIDENTIAL
ENVIRONMENTAL HEALTH SURVEY
NOISE BY AREA
OCTOBER, 1980
Office
Control Room Lab
Instrument Shop
Warehouse Distillation, ground
Distillation, upper
V-800's (filters)
Acid area
K-350 area
Lewis Unit deck Levels above Lewis Unit
Waste Heat Boiler 8 D-l area R-200 8 R-300 E-200 8 E-300 deck
River Water pump area
Check Tanks (T-804#s 8 T-806's) Check Tanks (T-104's 8 T~101) T/C Load Rack T/T Load Rack (front) T/T Load Rack (back) K-1002 (outside chain area)
dBA
52
62 65
61 74-76 84-91 76-89 84-85 83-86 86*90 80-103 76-93 80-85 83-86 79-83 82-87 79-90 78-84 70-72 76
75
92-98
DO 101948
e *
CONFIDENTIAL
D* Monitoring Equipment Used in the Survey
1. For Chemicals a- Personnel Monitoring
DuPont pump, model p-200 Sipin pump, model SP"1 DuPont constant flow sample calibrator for checking
FLOW RATES
b. Area Monitoring
Science pump, model D-200
Bendix pump, model C-115
2* For Noise a* Personnel Monitoring
DuPont dosimeter, model D~100 (modified for 85 dba) DuPont dosimeter, model D-285
b. Area Monitoring
Edmont-Wilson dosimeter, model 60-510
Dosimeters calibrated on DuPont Audio Dosimeter Cali brator model C-114
-10-
DO 101949
confidential
Analytical Equipment and Methods used in Survey:
1. For organic vapors collected on charcoal and desorbed with CS-2*
Instruments - Varian 3700 with auto-sampler and CDS-111
data system
Conditions
a* Temperatures
1- injector - 150C 2* detector - 240C 3* column - initial of 100C programmed to 130C
b. Carrier gas flow - 25 cc/min
c- Column - 20' x 1/8" 0D SP-1000 (10%) on 80/100
SUPELCOPORT d* Range setting - 10-12 e Sample size - 1-5 f* Calibrated weekly, blanks prepared daily
2* For Chlorothene in vapors collected in saran bags
Instruments:
Hewlett Packard 5730A gas chromatograph with 3390A reporting integrator
Conditions
a- Temperatures:
1. INJECTOR - 160 2* DETECTOR - 310
3- COLUMN - INITI
b* Carrier gas flow - 22 cc/min ,
c- Column - 5' x 1/8" 0D Porapak R 80/100
D* "A" CONTROLS
e- Range setting - 1
f- Sample size - 0*5cc
g* Calibrated weekly
DO 101.950 OONFTDfTNTrAL
-11-
3. For Methanol Vapors in Air
Instruments - Varian 3700 with CDS-lll Data System
Conditions
a* Temperatures
1- injector - 150C 2- detector - 240C 3* COLUMN - 150C operated isothermally
b* Carrier gas flow - 42 cc/min c- Column - 3' x 1/8" 0D Porapak N, 80/100 d* Range setting - 10-12
e- Sample size - 0*5 cc drawn from saran bag sample F- CALIBRATED WEEKLY 4- For separation of Vinyl Chloride from Methyl Chloride
Instruments - Hewlett Packard 5730A gas chromatograph with 3380A reporting integrator
Conditions a* Temperatures
1* injector - 160C 2. detector ~ 310C 3* column - 180C operated isothermally
b* Carrier gas flow - 22 cc/min
c* Column - 5' x 1/8" 0D Porapak R, 80/100 mesh d* "A" controls
e* Range setting - 1
f. Sample size - 1*4 ml
-12-
00 101.951. OONFTDfrNTT^l,
FILLED IN BY PLANT
tm?
EMPLOYEE EXPOSURE SUMMARY
QUARTER
,i . _BLOCK ltjo
''it d I' I
MINIMAL DETECTABLE
STRESS CApnAUJj
LIMIT AND UNIT
YEAR }Cf 'c'
0. I
PERSONNEL
- J Vp'f AREA *
EXCURSION
! JOB
NO . i CLASS
01 ! OTT l
02 1 OT
03 ! SOT 3
04 ! OS
05 ! SS
1 AREA/ TASK
I ! j |
*PT. EQ.
"*V
tva
NO.
BASIS SAMPLES
8fw
-
AVG. y
J7.l7.lJ>
h)f.
1/^y
] i6
1.0 0.3 <0,1
d.z
HIGH 7--
SAMPLE DURATION
NO. SAMPLES
JL'l.
<0,J (9.3
\1
\\ '1
\________ !_________
\\ !
,\
AVG.
HIGH
EXCUR. DURATION
NO. SAMPLES AVG. HIGH
1;
[ &i
a ; <5.3 '6.7
i'
1t
G6 -1 EDO , -
It) 78 13, S \ ...
07 03 :-refc>'
1 09 i C L ij i\.
10 !INSTR
11 |LABORER
i
1 i
s IV>^
Ifj7J.6 1\
V A.2(; d-i S' fd,l q d,i
7 ^1
i,6 o. 7
\ V
7
Ay
7
'
12 _ --
i 13 iCOLT MAINT
| NON-OS
uMJi___ i ' '
14 i SPEC.
_______
7 i.
*0,1
^4 <6./
j
15 jSECUR.
j
|f
16 1 MATE CONT !
i|
i LOADING
16 | T/C CLNC \
s--
l/l
\I2MS
| r "*
-- __
7 0.5:
......7. . / > (j 1i --j---------------- J------------
/, r 6 7,
1
\
( ! MCRSVNONc
m7oiV fot.-r. -"V -
v
1 1 AREA SAMP
20 i(NO JC)
i
7j -
\
i iii
-
i
74
fI
1
* s*^vv* 3
1 2,1 ' 6,7
j
----------------- 11------------ 1-----------------
J i _________1_______
11 ' |
] !
!
i i " --"--
.
i' i i; * ..(_ .............
. i _____J____________
^ 0, 6 Aaa,
a j izg j /& !1.
1 1---------------- i
1
1
i(
i
S1 !1
DO 10195?
CONFIDENTIAL
* PROTECTIVE EQUIPMENT: (1) Moudibit (2) Pull Face (3) Half or Dust Face (4) Air Supply (5) Hearing Protection
F ILL.ED xvi o l
PLANT
C /X/ / BLOCK VC, _STRESS ^'xJJAjLu LIMIT AND UNIT 000/ - f&3/
1/ 0 <
PERSONNEL
AREA
1 EXCURSION
JOB NO. CLASS
01 OTT
AREA/ TASK
*PT. EQ.
_
TWA NO.
BASIS SAMPLES
gc
--
AVG.
HIGH --
SAMPLE DURATION
02 0T
03 i SOT !
04 i os
05 SS 06 EDO 07 LAB 08 TECH 09 CLER.
i^ySf
) J* JFeYlrl*fj*m IAS IXS
cd. / (?/
<s~ *0if *0) |
*0,1
1
Li
(o *o,h 0.1
K A
ih *0,1 40.|
7 *0,1 0.1 X
(d <0A OA . \......... 5 *()>} 40, |
10 INSTR
11 LABORER
12 SUMMER
13 CONT MAINT
NON-OS 14 --S--P-E--C--.:---------15 SECUR.
16 MAIL CONT
C 17 .LOADING fv
18 T/C CLNG
(i 'Ijl TTV /riLpvr/r
1i----A <T
.. </__ *6,1 *D,I
<7).j
N X
-- cOA <0./
i7 *6,1' 40,J
.. _
1- -- -- X |7. Oi i <0// X 1 OA X
---
MGRS/N0N-
29 Joi d//.f\
'| (AREA SAMP
20 ! (NO JC)
A, V. v ' - .
--*
v 30 iXyh-
/\ - \
-
NO. SAMPLES
'
AVG.
**
EXCUR.
NO.
HIGH DURATION SAMPLES AVG. HIGH
... . / X C' 3,-Jwv
3
i.r cJl i 1
i
i > 2 -t*J\M 3 4.0 A 4 d 11
\
1 [ 1
l 1 ________i___________
\
I i i
i1 61
A } ! *0 . ,
1i DO 1 01953 CONFIDENTIAL
ii
* PROTECTIVE EQUIPMENT: (1) Mouthbit (2) Full Face (3) Half or Dust Face (4) Air Supply (5) Hearing Protection
FILLED IN BY PLANT
tmf
EMPLOYEE EXPOSURE SUMMARY
QUARTER
YEAR 1CI 6^
i/
_BLOCK Y &
n ,1 .
MINIMAL DETECTABLE
STRESS [ fidjn/!LSl^vJ LIMIT AND UNIT
GOOZ - k^Of
TL-X (O ^ pw^vU^/
0,, 1
JOB NO. CLASS
01 1 OTT
02 0T
AREA/ TASK
03 SOT
04 OS
03 ss
06 EDO
07 03 TE&-
09 CLER.
10 INSTR 11 LABORER 1
12 SUMMER
13 CONT MAIN!
NON-OS 14 SPEC.
15 SECUR.
t
16
'3l>
,, 16
MATE CONT
| [loading, Cj\o Tt/C CLNG
\ ]
j
1
I'MCRS/NON-. 1
19 !op Cl.}-J,'f. i -
AREA SAMP ! 20 (NO JC) 1
*PT. EQ.
--
TWA NO. BASIS SAMPLES
s-tun
AVG.
PAX .pAX
S' _.al
1
SAMPLE HIGH DURATION
/.o \ a.r \
NO. SAMPLES
f
AVG.
EXCUR. HIGH DURATION
1 0112. 'A/w*
NO. SAMPLES AVG. HIGH
-------
X.
j------------ -1---------'--------
3,7
/ 0
!
J > IT
' ' i I, up Pi
10
a.S
/)
ixx
_JL_ d-3
0 OX
u? j x
s ax
(7, 0-
4 j Q.X
aW </.s-
0-(,
\ \ \
\
ou \ a.3 \
a,3 \
flW
!
a]OiH ta
kj 3
!i
j 1 /.ST .p 3- . /
!
,
1i
i
ii 7 j a. i o. 7 \
--i
--
!>s~
i>) j--
i i
JP -
A
7
' 'A -
-
-
a,/
au" i_
OX *" i
d.x i
i
0,3 i i
1
\ \
ii i i : !
i
!
i
|i
l1 [
i. |i
*i
i\
'V ^
i i
0 i Co C^ 1 A \ ! cA. `
:
j1 1
j jj
1 J\
i; J nn 101954 | CONFIDENTIAL
i*
* PROTECTIVE EQUIPMENT: (1) Mouthbit (2) Full Face (3) Half or Dust Face (4) Air Supply (5) Hearing Protection
FILLED IN BY PLANT
imp
_BLOCK 4(n
/Jfo
STRESS
'/
tTLAOJtJlLfiM
Q,
MINIMAL DETECTABLE' LIMIT AND UNIT
_____ 3
r
I
PERSONNEL
AREA
EXCURSION
JOB NO. CLASS
AREA/ TASK
01 OTT
02 OT
03 SOT
04 OS
05 SS
06 EDO
3 M TEG? *
09 CLER.
10 INSTR
11 LABORER
12 SUMMER
13 !C0NT MAINT
NON-OS 14 SPEC.
15 SECUR.
16 MATE CONT
.^0 LOADING `
*PT.
EQ.
TWA NO.
BASIS SAMPLsES 8&C
AVG.
<0,1
t)x)z).S'
i -r 0,/ 6' <0, 1
Lr*X) l'S-- Ui`l.7
u.r TV>
L a.s* /a </),/ 4
L <0,/ *r <0,j
i.igi; 7 <0,/
V <0,j
HIGH
/
<0.1 0,</
SAMPLE DURATION
1
/
>
NO.
SAMPLES
<Af 2-Si >
4 0,7 '1
i0/6 .........
7S . .
<0,1 \
<07 7 --
r^Yrr1
mm
7 <0,/ <0,1 Tn
-
-- if
f
"T/v-c--urV.urs4
a <0, 1 < 6 J
rs7 0,2. 1134? _ _-
n
//>'!
'MfMXKt1 AREA SAMP
! nf20 1(NO JC)
'MA A
L3X-V4I
lI
{
1
AVG.
1 J
HIGH
EXCUR.
DURATION
NO. SAMPLES
AVG. HIGH
1!
v O.X L
,* i
1
/ 7n 0,(ft 1-iTJU. 3
`0,1 <0,1
1
>/
I
1 L
1 \
--
1
j
i- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
3^ j< 0 , j 1 < O 1 ,
1 1 11
DO 101955 1 CONFIDENTIAL.
li
11
--
* PROTECTIVE EQUIPMENT: (1) Mouthbit (2) Full Face (3) Half or Duse Face (4) Air Supply (5) Hearing Protection
FILLED IN BY PLANT
C Mi f
EMPLOYEE EXPOSURE SUMMARY
QUARTER
YEAR tty
BLOCK y 6
,. t ,L( MINIMAL DETECTABLE
STRESS^-Xujl/U^fuX^qi^_LIMIT AND UNIT
etooz-a&w
M.
PERSONNEL
AREA
EXCURSION
JOB NO. CLASS 01 ]OTT '02 OT
03 SOT 04 OS 05 SS 06 EDO
AREA/ |TASK !
;
T$y
09 CLER. 10 INSTR ii LABORER 12 SUMMER
*PT. EQ.
--
TWA NO. BASIS /SAMPLES
/ ->
I i"
,/,xyr L_i
1
\\1 J A.
1 /7^Ci T
6
yo </
I)x)S' ")'
4 &
AVG.
--
<o, / i i
l o, l <.0,1 *6i /' RQ, ]
4flt) <0.1 --
HIGH --
<0>(
SAMPLE
NO.
DURATION 1 SAMPLES
I1
k
4(1, i A. \
!\
/ _______
4 QJ i'
1
40. / \
40>l <o,f <6*1 _
--
],
i. \
AVG. -
HIGH '\ >
EXCUR. DURATION
/)
NO. SAMPLES AVG. HIGH
X 9. j. ; <6 t! -
i a 0. (/1 ol I A/u .
3
1 [1 f1
70tl '<.0,1
!: i (
13 CONT MAIN! NON-OS
14 SPEC.
15 SECUR. 16 MATL CONT
IJ) *
1
ir
i J) <0.( A >
-- ---
1
*a.| A ' i.
i
i
1\ - ' 1 \,
i1 i \
LOADING^ *
18 T/C CLNG
ij^}.s> f
7 40. J *6.1 V - --
|/~ A/ 19 k A
AREA SAMP 20 (NO JC)
- A, A'I r> 'M-r' '40 ticta
/! -
i
j
i
i
!
; kt O.oIaa oL -id)*! ; * Ci * ,
1
1
\
i f
k1
D0 101956
l CONFIDENTIAL
ii
j
* PROTECTIVE EQUIPMENT: (1) Mouthbit (2) Full Face (3) Half or Dust Face (4) Air Supply (5) Hearing Protection
KILLED IN BY
EMPLOYEE EXPOSURE SUMMARY
QUARTER YEAR X c ,,
PLANT
BLOCK H- (?
STRESS XOlWw1
MINIMAL DETECTABLE LIMIT AND UNIT
005-5*2/ s' -a^ <foo
Q. I -
CO
O O
1 i JOB NO. ! CLASS 01 i OTT
02 OT
03 I SOT
[ | AREA/ TASK
PERSONNEL
*PT. TWA
NO.
EQ. BASIS SAMPLES AVG.
gu *
UXX
3
i*0, 1
<T <0.1
[ AREA i
EXCURSION
HIGH y
SAMPLE
NO.
DURATION SAMPLES 1
AVG.
EXCUR.
NO.
HIGH] DURATION SAMPLES
f
AVG. HIGH i
*0.1
<0,1 -\
--------------1------------- oLAA*-
2l
*o.i ! <o. i
;
i j1
05 SS
06 i EDO l G1\*wvutf
07 : HAS-' os i Tufy*
'A" SJ T
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NON-OS 16 SPEC.
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' DO 101957 CONFIDENTIAL
i
* PROTECTIVE EQUIPMENT: (1) Moutlibit (2) Full Face (3) Half or Dust Face (4) Air Supply (5) Hearing Protection
FILLED IK BY PLANT !
EMPLOYEE EXPOSURE SUMMARY
QUARTER
YEAR {L\ 6
t m P
PERSONNEL
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STRESS
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15 SECUR.
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08 TECH 09 CLER. 10 INSTR 11 LABORER 12 SUMMER 13 C0NT MAINT
NON-OS 14 SPEC.
15 |SECUR.
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* PROTECTIVE EQUIPMENT: CD Mouthbit
(2) Full Face
(3) Half or Dust Face
(4) Air Supply
(3) Hearing Protection
DO 101959 CONFIDFNTTAL
FILLED IN BY
PLANT (L tY\ f
PERSONNEL
EMPLOYEE EXPOSURE SUMMARY
QUARTER YEAR
BLOCK 4A
I)1!1), . i _ii MINIMAL DETECTABLE
STRESS 'Jhi 1/Oilfr^uWntLIMIT AND UNIT
***9-02*4"
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* PROTECTIVE EQUIPMENT: CD Mouthbit (2) Pull Face (3) Half or Dust Face (4) Air Supply (5) Hearing Protection
FILLED IN BY PLANT
EMPLOYEE EXPOSURE SUMMARY
QUARTER YEAR (H
crr[ P
_BLOCK
,
C/-fc>
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15 SECUR.
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i 00 101961 CONFIDENTIAL.
i
,
* PROTECTIVE EQUIPMENT: (I) Kouthbit (2) Full Face (3) Half or Dust Face (4) Air Supply (5) Hearing Protection
FILLED IN BY________________________
PLANT
tr/j f
PERSONNEL
EMPLOYEE EXPOSURE SUMMARY
QUARTER _
___ YEAR IQ
/
J&LOCK T(q
STRESS
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NON-OS 14 SPEC. 15 SECUR. 16 MATL CONT
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FILLED IN BY plant
EMPLOYEE EXPOSURE SUMMARY
QUARTER YEAR !Ci'c^
(L fyl P
PERSONNEL
BLOCK
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11 LABORER
12 SUMMER
13 C0NT MAINT
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15 SECUR.
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10 INSTR 11 | LABORER
________ _______
i 12 13
SUMMER CONT MAINT
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15 SECUR.
16 t MATE CONT
17 LOADING
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* PROTECTIVE EQUIPMENT: (1) Mouthbit (2) Full Face (3) Half or Dust Face (4) Air Supply (5) Hearing Protection
DO 101964 CONFIDENTIAL
FILLED IN BY___________________________
PLANT
P fFj P
EMPLOYEE EXPOSURE SUMMARY
QUARTER
MINIMAL DETECTABLE
BLOCK 4 (o STRESS CPdLni-tb j
LIMIT AND UNIT
___ YEAR (Q[ SO
0 I
PERSONNEL
AREA
EXCURSION
JOB NO. CLASS
01 OTT
AREA/ TASK
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--
TWA BASIS
NO. SAMPLES
--
AVG. ___
HIGH --
SAMPLE DURATION
NO. SAMPLES
EXCUR.
NO.
AVG. HIGH DURATION SAMPLES AVG. HIGH
02 OT 03 SOT 04 OS 05 SS 06 EDO 07 LAB 08 TECH 09 CLER. 10 INSTR 11 LABORER 12 SUMMER
(AM, ST
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DO 101965
CONFTDF-N 1 1 AL
11
* PROTECTIVE EQUIPMENT: (1) Mouthbit (2) Full Face (3) Half or Dust Face (4) Air Supply (5) Hearing Protection