Document LJre4VdO3Jd3enpe2QY2oK1qQ
INDUSTRIAL HYGIENE SUMMARY - 1981 - BY J. 1. MOREAU, JR.
RAILROAD-TANK CAR CLEANING
PAGE
CHEMICAL EXPOSURE RESULTS ----------------------------------------------------------------------------------- 1-2
NOISE SURVEYS----------------------------------------------------------------------------------------------------------- 3-11
HEAT STRESS SURVEYS----------------------------------------------------------------------------------------------- 12-18
ACCOMPLISHMENTS ------------------------------------------------------------------------------------------------------- 19
GOALS FOR 1982 ----------- '--------------------------------------------------------------------------------------------- 20
MARINE
CHEMICAL EXPOSURE RESULTS - BARGES (OTHER THAN BENZENE) ----------------------- 1-3 CHEMICAL EXPOSURE RESULTS - BENZENE BARGES ------------------------------------------------- 4-5 VINYL CHLORIDE SHIPDISCONNECT EXPOSURE RESULTS ----------------------------------------- 6-8 ACCOMPLISHMENTS ------------------------------------------------------------------------------------------------------- 9 GOALS FOR 1982 --------------------------------------------------------------------------------------------------------- 10
ANNUAL REVIEW MARCH 2, 1982
RAILROAD-TANK CAR CLEANING MARINE
INDUSTRIAL HYGIENE MEDICAL
D 098338 OONFIDFNTIAL
DOW CHEMICAL U.S.A
January 7, 1982
LOUISIANA DIVISION P. O. BOX 150
PLAQUE MINE. LOUISIANA 70764-0150 504 369-8000
P. J. PREJEAN - RAILROAD SHIFT SUPERVISORS - RAILROAD 0. C. DICKERSON - RAILROAD BULLETIN BOARD - RAILROAD J. M. CRONAN - TANK CAR CLEANING/INSPECTION BULLETIN BOARD - TANK CAR CLEANING DANNIE KENNEDY - INDUSTRIAL HYGIENE
FOR YOUR INFORMATION, FOLLOWING ARE PERSONNEL EXPOSURE LEVELS, SHOWN IN PARTS PER MILLION, FROM TANK CAR SAMPLES TAKEN IN 1981 DURING CLEANING OPERATIONS. TLV'S LISTED ARE MAXIMUM ALLOWABLE EXPOSURES. SAMPLES WERE TAKEN WITH PERSONNEL MONITORING PUMPS.
J. L. MOREAU, JR. INDUSTRIAL HYGIENE - RAILROAD/MARINE
SG
1- -
AN OPERATING UNIT OF THE DOW CHEMICAL COMPANY
098339 CONFIDFNTIA!
I
8 HOUR TIME WEIGHTED AVERAGES
METHYLENE CHLORIDE TLV-100
CARBON TETRACHLORIDE TLV-5
0.80 8.52 0.18 0.17 2.93 0.31 1 .37 2.21
0.22 0.22 0.13 0.11 2.02 0.36
CHLOROFORM TLV-10
1.88 2.92 0.01 0.12 3.04 0.23
ETHYLENE DICHLORIDE TLV-10
PERCHLOROETHYLENE TLV-100
VINYL CHLORIDE TLV-1
METHYL CHLORIDE TLV-50
3.71
4.56
4.21
0.83
3.5911CM5 5.70
10.5V
9.42
ihtfr 38.3
0.31
0.16
0.03 0.03 0.23 0.82 0.03 0.03 0.05 0.04 0.93 0.23
0.04 0.04 0.60 0.72 0.11 0.05 , 0.05 0.12 0.06 0.06
ETHYLENE OXIDE TLV-3
0.08 0.10
15 MINUTE EXCURSIONS (SHORT TERM SAMPLES)
METHYLENE CHLORIDE TLV-500
44.95 28.73
1 .20
CARBON TETRACHLORIDE TLV-20
0.68
CHLOROFORM TLV-50
1 .04 4.52
PERCHLOROETHYLENE TLV-150
4.16 5.70
VINYL CHLORIDE TLV-5
0.09 0.06 0.06 0.06 0.77 0.41 0.07 0.07
-
METHYL CHLORIDE TLV-200
0.11 0.18
ETHYLEN OXIDE TLV-50
0.45 0.21
-2-
DO 098340 CONFIDFNTI Al.
NOISE CONTROL MAY 26, 1981 SUBJECT: UTILIZING MUFFLERS IN TANK CAR CLEANING/RAILROAD DEPARTMENT
DISTRIBUTION: J.E. CAMPBELL - IND. RELATIONS/MTLS. HANDLING
J.D. WELDON - KYDROCARBONS/MARINE P.J. PREJEAN - RAILROAD
J.M. CRONAN - TANK CAR CLEANING CHARLIE HALPHEN - INDUSTRIAL HYGIENE
D.ANNIE KENNEDY - INDUSTRIAL HYGIENE F.A. EKKER - MARINE AL KIRBY - MARINE
BEN HOEMEYER - TRAINING COORDINATOR ORAN SUIRE - PLANT ENGINEERING BUD SMALLRIDGE - S.AFETY
-3-
DO 098341 Al-
OBJECTIVES: 1. SAFETY A. TO PROTECT AND INSURE THE PHYSICAL WELFARE OF EMPLOYEES B. TO PROVIDE BETTER AND MORE PLEASANT WORKING CONDITIONS
2. TO PROVIDE A WORK ENVIRONMENT CONDUCIVE TO MAXIMUM EFFORT AND INCREASED MORALE
IN DEPTH NOISE SURVEYS WERE MADE BEFORE AND AFTER USING MUFFLERS. IT WILL BE OBVIOUS FROM THESE STUDIES THAT REDUCTION AND CONTROL OF EXCESSIVE NOISE IS NECESSARY AND FEASIBLE BY THIS METHOD. IT IS ANTICIPATED AND INTENDED THAT OTHERS IN THE DIVISION MAY BENEFIT FROM THESE SURVEYS. A SEPARATE SURVEY ON EACH OF THE FOLLOWING PAGES SHOWS:
1. APPLICATION OF MUFFLER 2. RESULTS OF NOISE SURVEY (BEFORE AND AFTER) 3. CONCLUSION 4. RECOMMENDATION 5. SUGGESTED PURCHASING INFORMATION ALLIED WITAN (ALWITCO) MUFFLERS WERE USED. THESE MUFFLERS ARE INEXPENSIVE, EASY TO INSTALL AND EFFECTIVE. SIMILAR EQUIPMENT CAN BE PURCHASED FROM OTHER MANUFACTURERS. ALL SURVEY RESULTS ARE IN DECIBELS (DBA).
J.L. MOREAU, JR. INDUSTRIAL HYGIENE SPECIALIST RAILROAD/MARINE DEPTS.
-4-
DO 098342 CONFIDENTIAL
A--22--81
APPLICATION:
STEAMING INTERIOR OF TANK CAR USING TWO MUFFLERS CONNECTED TO A TEE AT END OF ONE INCH STEAM LINE, PROVIDING THRUST OF STEAM TO EACH END OF CAR. DURATION - 15 MINUTES PER CAR.
RESULTS:
ON DOME PLATFORM 3 FT. FROM SOURCE ELEVATED WALKWAY 10 FT. FROM SOURCE ELEVATED WALKWAY UNDER ROOF, EAST END ELEVATED WALKWAY UNDER ROOF, WEST END GROUND LEVEL NEXT TO CAR GROUND LEVEL NORTH SIDE OF SHED C-ROUND LEVEL SOUTH SIDE OF SHED GROUND LEVEL EAST SIDE OF SHED GROUND LEVEL WEST SIDE OF SHED
BEFORE INSTALLING MUFFLERS
105-106v 94-95 ' 85-86 76-77 88-89 82-83 81-82 88-89 76-77
AFTER INSTALLING MUFFLERS
[99-100 ^39-90
81-82 74-75 84-85 79-80 78-79 84-85 74-75
CONCLUSION: VERY EFFECTIVE IN REDUCING STEAM NOISE
RECOMMENDATION: SHOULD BE PURCHASED AND INSTALLED. HEARING PROTECTION WOULD NO LONGER BE REQUIRED UNLESS WITHIN 10 FEET OF SOURCE.
MUFFLER USED: ALW1TCO AIR' EJECTOR AE TYPE R-88 WITH 1 INCH MALE PIPE CONNECTION. PRICE $17.30 EACH.
-5DO 098343
CONFIDENTIAL
4-28-81
APPLICATION:
CLEANING AND DRYING POLYETHYLENE HOPPER CAR BOTTOM OUTLETS WITH AIR USING 3/4 INCH AIR HOSE WITH MUFFLER AS NOZZLE. DURATION 4 TO 5 MINUTES PER CAR.
RESULTS
AT HEARING ZONE OF OPERATOR 10 FT. FROM SOURCE 20 FT. FROM SOURCE AIR NOISE ONLY--AT HEARING ZONE
BEFORE INSTALLING MUFFLER
118-124 108-112 104-108 120-121
AFTER INSTALLING MUFFLER
110-114 98-101 94-96
102-103
IDENTICAL RESULTS WERE OBTAINED USING A ONE INCH R-88 MUFFLER WITH BUSHING 1" to 3/4", PRICE $17.30.
CONCLUSION:
EXCELLENT REDUCTION OF AIR NOISE. INITIAL LEVELS WERE EXTREMELY HIGH. MORE EFFORT SHOULD AND WILL BE MADE TO EFFECT FURTHER REDUCTION.
RECOMMENDATION: SHOULD BE PURCHASED AND USED UNTIL A BETTER METHOD CAN BE DEVISED. HEARING PROTECTION WOULD STILL BE NECESSARY.
MUFFLER USED: ALWITCO AIR EJECTOR AE TYPE R-68 WITH 3/4 INCH MALE PIPE CONNECTION. PRICE $14.23 EACH.
-6-
DO 098344 CONFIDENTIAL.
5-14-81
APPLICATION: DRYING INTERIOR OF TANK CARS WITH AIR USING 3/4 INCH AIR HOSE WITH MUFFLER AS NOZZLE. DURATION - 5 MINUTES PER CAR.
RESULTS:
ON DOME PLATFORM NEXT TO MANWAY INSIDE DOME MANWAY AT TOP OF CAR INTERIOR OF CAR ELEVATED WALKWAY 12 FT. FROM SOURCE
BEFORE INSTALLING MUFFLER
109-110 120-122 126-128
90-92
AFTER INSTALLING MUFFLER
98-99 107-108 112-114
79-81
IDENTICAL RESULTS WERE OBTAINED USING A ONE INCH R-88 MUFFLER WITH BUSHING 1" TO 3/4", PRICE $17.30.
CONCLUSION:
EXCELLENT REDUCTION OF AIR NOISE. INITIAL LEVELS WERE EXTREMELY HIGH. A STUDY OF OTHER METHODS TO ACHIEVE FURTHER REDUCTION WILL BE MADE.
RECOMMENDATION
SHOULD BE PURCHASED AND USED UNTIL A BETTER METHOD CAN BE DEVISED. HEARING PROTECTION WOULD STILL BE NECESSARY.
MUFFLER USED: ALWITCO AIR EJECTOR AE TYPE R-68 WITH 3/4 INCH MALE PIPE CONNECTION. PRICE $14.23 EACH.
-700 098345
CONFTDFNTIAI
5-13-81
APPLICATION:
AIR DRIVEN 3 INCH SUCTION PUMP MFD. BY WARREN RUPP CO. '{HAD DEFECTIVE, LOOSE MUFFLER). USED TO PUMP WATER FROM TANK CARS.
RESULTS
1 FT. FROM SOURCE 5 FT. FROM SOURCE 10 FT. FROM SOURCE 15 FT. FROM SOURCE 20 FT. FROM SOURCE 25 FT. FROM SOURCE
BEFORE INSTALLING MUFFLER
99-100 93-94 90-91 88-89 86-87 84-85
AFTER INSTALLING MUFFLER
84-86 78-79 76-77 74^75 73-74 72-73
CONCLUSION: EXCELLENT REDUCTION OF AIR NOISE
RECOMMENDATION: SHOULD BE PURCHASED AND INSTALLED. HEARING PROTECTION WOULD NO LONGER BE NECESSARY.
MUFFLER USED: ALWITCO AIR EXHAUST EP TYPE X-10 WITH 1 INCH MALE PIPE CONNECTION. PRICE $10.75 EACH.
-8DO 0983*8
CONF IDF NTT AL.
5-13-81
APPLICATION:
AIR DRIVEN 2 INCH SUCTION PUMP, WITH NO MUFFLER, MFD. BY PRESSED AND WELDED PRODUCTS. USED TO PUMP WATER FROM TANK CARS.
RESULTS:
1 FT. FROM SOURCE 5 FT. FROM SOURCE 10 FT. FROM SOURCE 15 FT. FROM SOURCE 20 FT. FROM SOURCE 25 FT. FROM SOURCE
BEFORE INSTALLING MUFFLER
100-102 92-93 89-90 87-88 86-87 84-85
AFTER INSTALLING MUFFLER
80-81 77-78 75-76 74-75 73-74 71-72
CONCLUSION: EXCELLENT REDUCTION OF AIR NOISE
RECOMMENDATION: SHOULD BE PURCHASED AND INSTALLED. HEARING PROTECTION WOULD NO LONGER BE NECESSARY.
MUFFLER USED: ALWITCO AIR EXHAUST EP TYPE X-10 WITH 1 INCH MALE PIPE CONNECTION. PRICE $10.75 EACH.
-9-
qO 0983A7 CONFIDENT!^-
VARIOUS DATES - 1981
APPLICATION: IMPACT WRENCHES, RAILROAD SPIKE DRIVERS, JACK HAMMERS, AND SIMILAR AIR DRIVEN EQUIPMENT.
RESULTS: HIGH LEVELS WITHOUT MUFFLERS
CONCLUSION: TO INSTALL MUFFLERS, PRESENT EQUIPMENT WOULD HAVE TO BE SENT OFF AND MODIFIED. TIME, EFFORT AND COST INVOLVED WOULD BE PROHIBITIVE.
RECOMMENDATION:
WHEN PURCHASING THIS EQUIPMENT IN THE FUTURE, SPECIFY THAT MUFFLERS BE INSTALLED BY THE MANUFACTURER, SINCE THIS IS OPTIONAL.. THE WEARING OF HEARING PROTECTION SHOULD BE CONTINUED.
PROPOSED MUFFLER USE: ALWITCO BANTAM BN TYPE B-88 WITH 1 INCH MALE PIPE CONNECTION. PRICE $5.80.
-10-
DO 098348 CONFIDENTIAL
DOW CHEMICAL U.S.A.
April 1, 1981
P. J. Prejean J. M. Cronan Bulletin Board Bulletin Board
cc: Dannie Kennedy Bud Smallridge
Railroad Tank Car Cleaning Railroad Tank Car Cleaning
Industrial Hygiene Safety
LOUISIANA DIVISION P. O. BOX ISO
PLAQUE MINE, LOUISIANA 70764 504 3B9-BOOO
On March 25 and March 27, 1981, noise surveys were made on new diesel switch engines 1009 and 1008, respectively, using a Bruel & Kjaer sound level meter type 2219, Results shown in decibels are as follows.
SWITCHING IN PLANT
Eng. 1009
Eng. 1008
In cab, eng running slow
It It
t> It M It
" accelerating bell ringing radio
It It horn blowing
It II air brakes stopping
78-80 80-85 79-82 92-95 106-107 83-85
80-82 84-86 76-78 88-90 107-109 82-84
BREAKING UP TRAIN
On front of eng, eng idling 11 It " " pulling cars 11 l " " accelerating (kicking It It *' " horn blowing cars )
In cab, horn blowing
II M
radio
M It bell ringing
M II accelerating (kicking cars)
It If air brakes, stopping
II It eng idling
It It pulling cars
78-80 88-90*1 98-100^
112-116 98-99 92-95 79-80 85-88 82-85 74-76 84-85
78-80 88-90 "} 98-100~ 112-114 105-107 78-80 80-82 88-92 82-86 75-76 85-86
In summary, recommend wearing of hearing protection by anyone riding front of engines when horn is blowing. Obviously, some individual judgment may have to be exercised when exposure is marginal.
It is the responsibility of supervision to enforce the wearing of proper hearing protection by all personnel during noisy operations.
J. L. Moreau Industrial Hygiene
-11-
sg an operating unit of the dow chemical Company
DO 098349 CONFIDFNTI Al.
SUBJECT: HEAT STRESS SURVEYS IN RAILROAD - TANK CAR CLEANING DEPARTMENT
JULY 30, 1981
DISTRIBUTION: J. E. CAMPBELL - IND. RELATIONS/MTLS. HANDLING
P. J. PREJEAN - RAILROAD J. M. CRONAN - TANK CAR CLEANING
N. 0. FUSSELL - RAILROAD MAINT. 0. C. DICKERSON - RAILROAD MAINT.
DR. M. F. CURRIER - MEDICAL CHARLIE HALPHEN - INDUSTRIAL HYGIENE DANNIE KENNEDY - INDUSTRIAL HYGIENE
JOHN MCBRIDE - SAFETY
-12-
DO 098350 confidential
The following heat stress surveys were made in Railroad - Tank Car Cleaning Department. To determine heat exposure, the measurement of environmental factors is required. This correlates well with deep body temperature and other responses to heat. The simplest and most suitable measurement method is the Wet Bulb Globe Temperature Index (WBGT). WBGT values as used here are calculated by the following equation:
WBGT
(Outdoors) WBGT WB GT DB
= 0.7 WB + 0.2 GT + 0.1 DB = Wet Bulb Globe Temperature Index = Wet Bulb Temperature = Globe- Thermometer Temperature = Dry Bulb Temperature
Your attention is directed to the last column of figures on each page of survey results which represent degrees centigrade WBGT. These may be easily compared to Table 1, Permissible Heat Exposure Threshold Limit Values. Table 2 shows many variables that can affect results.
Workers should not be permitted to continue their work when their deep body temperature exceeds 38.0 degrees Centigrade. However, it is well known, and proven by personal observation, that employees will pace them selves as necessary.
The following is recommended for employees who work in a hot environment:
1. Insure adequate intake of water, gatorade or equivalent, and salt.
2. Implement a work and rest regimen - take regular and frequent breaks.
3. Distribute the total work load evenly over the entire work day when possible.
4. Schedule hot jobs for coolest part of work shift. 5. Begin work earlier. 6. Take turns on heavy work - divide the work. 7. Maximum use of power tools to reduce heavy work load. 8. Allow employees to pace themselves.
J. L. Moreau, Jr. Industrial Hygiene Specialist Railroad/Marine Depts.
-13-
DO 098351 CONFIDENTIAL
TABLE 1
PERMISSIBLE HEAT EXPOSURE THRESHOLD LIMIT VALUES (Values are given in C. WBGT)
WORK - REST REGIMEN_________________LIGHT
WORK LOAD MODERATE ` HEAVY
CONTINUOUS WORK
30.0
26.7
25.0
75% WORK 25% REST, EACH HOUR
30.6
28.0
25.9
50% WORK 50% REST, EACH HOUR
31.A
29.A
27.9
25% WORK 75% REST, EACH HOUR
32.2
31.1
30.0
Higher heat exposures than shown in Table 1 are permissible if the workers have been undergoing medical surveillance and it has been established that they are more tolerant to work in heat than the average worker. Workers should not be permitted to continue their work when their deep body tempera ture exceeds 38.0 degrees C.
TABLE 2
FACTORS AFFECTING EXPOSURE
Environmental Factors
Temperature Humidity Wind Long Wave Radiation Solar Radiation Dust Aerosols Gases Fumes Barometric Pressure Clothing
Human Factors
Age Sex Physical Fitness Body Build Health Acclimatization Nutrition & Hydration Motivation Training Physical Capabilities Mental Capabilities Emotional Stability Ethnic Characteristics
Job Factors
Complexity of Task Duration of Task Physical Load Mental Load Perceptual-motor Load Sensorimotor Load Skill Required
-15-
D0 098353 CONFIDENTIAL
TIME
CREW
LOCATION
WEATHER
WIND-MPH
RELATIVE
*DRY
% HUMIDITY BULB F
WET BULB F
GLOBE F
WBGT F
WBGT C
J 1015AM CAMPBELL
600 W/END CLEAR
J 1045AM CAMPBELL
600 W/END CLEAR
i 1115AM WASHINGTON 43-MAIN
CLEAR
, 1130AM WASHINGTON 43-MAIN
t 0130PM WASHINGTON 43-MAIN
r 0145PM WASHINGTON 43-MAIN
} 0230PM CAMPBELL
800 E/E
t 0245PM CAMPBELL
800 E/E
CLEAR PC PC PC PC
> 0145PM WASHINGTON 30-MAIN
PC
t 0200PM WASHINGTON 30-MAIN
PC
i 0215PM CAMPBELL
800 E/E
PC
i 0230PM CAMPBELL
800 E/E
PC
1015AM WASHINGTON 30-MAIN
CLEAR
1030AM WASHINGTON 30-MAIN
CLEAR
1045AM CAMPBELL
416-NEW
CLEAR
1100AM CAMPBELL
416-NEW
CLEAR
0100PM WASHINGTON 9-MAIN
PC
0115PM WASHINGTON 9-MAIN
PC
0130PM CAMPBELL
800 E/E
PC
0145PM CAMPBELL
800 E/E
> 1045AM WASHINGTON 9-MAIN
> 1100AM WASHINGTON 9-MAIN
1 1130AM CAMPBELL
800 E/E
> 0145PM WASHINGTON 9-MAIN
i 0230PM WASHINGTON 9-MAIN
PC CLEAR CLEAR CLEAR PC PC
s 1045AM CAMPBELL
800 E/E
CLEAR
i 1015AM CAMPBELL
800 E/E
CLEAR
i 1030AM WASHINGTON 700 W/E
CLEAR
* 0230PM CAMPBELL
800 E/E
PC
0300PM WASHINGTON 706 E/E
PC
WNW 2-6 WNW 2-6 WNW 2-6 WNW 2r6 NNW 3 NNW 3 NNW 3 NNW 3 WSW 5 WSW 5 WNW 5 WNW 5 NNW 10 NNW 10 NNW 10 NNW 10 WSW 6 WSW 6 WSW 6 WSW 6 NW 2 NW 2 NW 2 NW 6 NW 6 NW 8 SE 6 SE 6 SSE 4 SSE 4
60 94 82 109 89 31.7
55 94 80 111 88 31.1
52 98 83 118 92 33.3
56 97 83 116 91 32.8
54 97 82 121 91 32.8
48 99 82 121 92 33.3
46 100 82 122 92 33.3
48 101 83 124 93 33.9
48 102 84 118 93 33.9
48 103 85 125 95 35.0
45 105 85 125 95 35.0
44 104 84 127 95 35.0
60 95 83 111 90 32.2
59 97 84 112 91 32.8
55 96 82 111 90 32.2
55 98 84 114 91 32.8
45 102 83 114 91 32.8
42 106 85 125 95 35.0
42 105 84 125 94 34.4
43 105 84 128 95 35.0
58 98 85 120 93 33.9
54 100 85 122 94 34.4
52 102 86 123 95 35.0
44 104 84 118 93 33.9
41 107 85 127 96 35.6
58 98 85 114 92 33.3
70 -
94
85
113
92 33.3
61 97 85 112 92 33.3
41
108:
86
125
96 35.6
41 107 85 121 94 34.4
<r
m z<~
U; Oo
(J
i
SO H
Dry Bulb F - Ordinary Mercury Thermometer Air Temperature
DO 0 9 8 3 5 5
C O N F ID E N T IA L .
DATE
7-21 7-21 7-21 7-21 7-21 7-21 7-22 7-22 7-22 7-22 7-22 7-22 7-23 7-23 7-24 7-24 7-24 7-26
TIME
1115AM 1130AM 0200PM 0215PM 0230PM 0245PM 1000AM 1015AM 0115PM 0130PM 0245PM 0300PM 0945AM 1000AM 0915AM 0930AM 0315PM 0330PM
LOCATION
INSIDE OUTSIDE INSIDE OUTSIDE OUTSIDE INSIDE INSIDE OUTSIDE INSIDE OUTSIDE INSIDE OUTSIDE INSIDE OUTSIDE INSIDE OUTSIDE INSIDE OUTSIDE
WEATHER
CLEAR CLEAR PC PC PC PC CLEAR CLEAR PC PC PC PC CLEAR CLEAR CLEAR CLEAR PC PC
WTND-MPH
NNW 10 NNW 10 WSW 6 WSW 6 WSW 6 WSW 6 NW 2 NW 2 NW 6 NW 6 NW 6 NW 6 NW 8 NW 8 SE 6 SE 6 SSE 4 SSE 4
RELATIVE X HUMIDITY
66 58 49 48 47 49 71 59 55 52 49 48 70 58 74 66 52 49
*DRY BULB F
91 96 99 102 104 99 90 97 97 101 100 104 89 97 88 95 97 105
WET BULB F
81 83 82 84 85 82 82 84 83 85 83 86 81 84 81 85 82 87
GLOBE F
95 110 115 115 122 108
89 110 105 121 104 115
87 108
93 108 106 125
WBGT F
85 90 90 92 94 89 84 91 89 94 89 94 83 90 84 91 88 96
WBGT C
29.4 32.2 32.2 33.3 34.4 31.7 28.9 32.8 31.7 34.4 31.7 34.4 28.3 32.2 28.9 32.8 31.1 35.6
* - Dry Bulb F - Ordinary Mercury Thermometer Air Temperature
DO 0 9 8 3 5 6 CO NFIDENTIAL
DATE
7-22 7-22 7-23 7-23 7-24 7-24 7-24 7-24 7?27 7-27 7-27 *7-29 7-29 7-29
TIME
0200PM 0215PM 1015AM 1030AM 0945AM 1100AM 1215PM 0215PM 1015AM 1115AM 0100PM 1045AM 0100PM 0215PM
LOCATION
30 30 30 30 30 30 30 30 30 30 30 30 30 30
GENERAL AMERICAN TANK CAR CO. (GATX)
WEATHER
WIND-MPH
RELATIVE X HUMIDITY
*DRY BULB F
PC PC CLEAR CLEAR CLEAR CLEAR PC PC PC PC PC CLEAR PC PC
NW 6 NW 6 NW 8 NW 8 SE 6 SE 6 SE 2 SSE 4 S3 S3 SW 4 WNW 4 NW 4 WNW 2
46 104 48 103 58 98 54 100 72 93 56 97 53 99 48 102 68 94 60 96 46 102 64 96 54 100 50 101
WET BULB F
85 85 85 85 85 83 84 84 84 84 83 85 85 84
GLOBE F
124 119 113 116 111 119 117 117 111 115 120 116 120 119
WBGT F
95 94 92 93 91 92 92 92 90 ' 91
92 92 93 93
WBGT C
35.0 34.4 33.3 33.9 32.8 33.3 33.3 33.3 32.2 32.8 33.3 33.3 33.9 33.9
* Dry Bulb F - Ordinary Mercury Thermometer Air Temperature
00
rHi
RAILROAD - TANK CAR CLEANING
ACCOMPLISHMENTS - 1981
EMPLOYEE EDUCATION PROGRAM - 100% PARTICIPATION NOISE SURVEYS WITH EMPHASIS ON PROBLEM AREAS TANK CAR CLEANING WASTE COLLECTION PIT - INSTALLED COMPOSITE SAMPLER TO MONITOR 24 HOUR DISCHARGE NEW AND IMPROVED DRAINAGE AND COLLECTION SYSTEM FOR WASTE WATER AND POLYETHYLENE PELLETS FROM POLYETHYLENE HOPPER CARS IMPROVED CLEANING PROCEDURE FOR VINYL CHLORIDE TANK CARS REDUCING CLEANING AND PERSONNEL EXPOSURE TIME FROM 36 HRS. TO 12 HOURS PER CAR. ALL PERSONNEL EXPOSURE SAMPLES WERE BELOW TLV. CLEANING TANK TRUCKS UNDER TANK CAR SHED, OUT OF WEATHER AND NEAR NECESSARY EQUIPMENT. DISPOSAL OF GLYCOL TANK CAR HEELS TO ISOLATED PIT, ELIMINATING NONCOMPLIANCES FROM THIS SOURCE. HEAT STRESS SURVEYS RAILROAD AND TANK CAR CLEANING.
-19-
DO 098357 CONFIDENTIAL..
RAILROAD - TANK CAR CLEANING
GOALS - 1982
PROTECTING THE PHYSICAL WELFARE OF EMPLOYEES BY REDUCING CHEMICAL AND NOISE EXPOSURES, THUS PROVIDING SAFER AND BETTER WORKING CONDITIONS CONTINUING EDUCATION OF EMPLOYEES - CONSEQUENCES OF OVEREXPOSURE TO CHEMICALS, SURVEY RESULTS, ETC. IMPLEMENTING NEW METHODS OF NOISE CONTROL IN PROBLEM AREAS OF TANK CAR CLEANING MORE NOISE SURVEYS - SEEKING BETTER METHODS OF NOISE CONTROL MONITORING PERSONNEL CHEMICAL EXPOSURES * MORE EMPHASIS ON SUSPECT CARCINOGENS NEW FLARE STACK SYSTEM FOR VENTING AND BURNING VAPORS FROM TANK CAR CLEANING PIPELINE TO CENTRAL WASTE TREATMENT FOR PERMANENT DISCHARGE OF ALL WASTE OR WASH WATER FROM CLEANING OF RAIL CARS ZERO NON-COMPLIANCES THROUGH IMPROVED CLEANING PROCEDURES, MONITORING AND SAMPLE COLLECTING
-20-
00 0983so C0NF10ENTlaL
DOW CHEMICAL U.S.A.
JANUARY 11, 1982
LOUISIANA DIVISION P. O. BOX ISO
PLAQUE MINE, LOUISIANA 70764-0160 604 389-B000
A. E. KIRBY - MARINE D. R. FABRE - MARINE SHIFT SUPERVISORS - MARINE BULLETIN BOARD - DOCK 111 DANNIE KENNEDY - INDUSTRIAL HYGIENE
FOR YOUR INFORMATION, ATTACHED ARE PERSONNEL EXPOSURE LEVELS, SHOWN IN PARTS PER MILLION, FROM BARGE LOADING AND SHIP DISCONNECT OPERATIONS IN 1981. SAMPLES WERE TAKEN WITH PERSONNEL MONITORING PUMPS. TLV'S LISTED ARE MAXIMUM ALLOWABLE EXPOSURES.
J. L. MOREAU, JR. INDUSTRIAL HYGIENE - RAILROAD/MARINE
SG
-1
AN OPERATING UNIT OF THE DOW CHEMICAL COMPANY
METHYLENE CHLORIDE TLV-100
0.08 16.87 14.62 13.70 28.67
2.15 0.59 0.57 8.03 3.86 8.94
8 HR. TWA - PERSONNEL SAMPLES - BARGES
CHLOROFORM TLV-10
4.15 1.96 3.63 0.37 0.37
PERCHLOROETHYLENE TLV-100
0.21 0.23 0.22 0.19
s
ETHYLENE DICHLORIDE TLV-10
4.96 0.88 0.90 -v T34.32 ^{b^
^1.83
3.81 7.58 3.27 2.64 1.30
CARBON TETRACHLORIDE TLV-5
6.12 0.18 5.18 ^
-2CONr?9 8360 C0^rDirNTI^
AREA SAMPLES - BARGES
METHYLENE CHLORIDE TLV-100
CONTROL ROOM
0.34 0.26
CHLOROFORM TLV-10
0.05
PERCHLOROETHYLENE TLV-100
ETHYLENE DICHLORIDE TLV-10
CARBON TETRACHLORIDE TLV-5
0.21
0.56 37.15
0.11
C.12
BARGE 1.20
49.78 1.71
1.62 0.92
0.17 0.18
-3- D0 098361 CONFIDENTIAL
DATE
1-9 \ 1-9 1-9 1
1-10 1-10
1f
1
1-10 i
1-12
1-12
1-1A
1-1A
1-1A
1-16
1-16
1-61
1-27
1-27
1-27
1-27
1-28,
1-28 1 l
1-28
2-13
2-13
2-13
2-13
2-28
2-28
2-28
2-28 \ 2-28 2-28 i
3-11
3-11
3-11
3-16
3-16
3-16
3-1-7.
3-17]
3-17
'3-17
PERSONNEL
0.07 0.08 0.07 0.10 0.08 0.61 26.12 0.55 1.88 0.05 2.98 0.05 8.87 A.69 6.02 1.99 6.08 3.65 6.56 28.50 1.71 0.62 1.17 0.10 6.82 0.25 0.27 0.18 30.27 0.05 A3.80 51 . A6 0.07 3.79 0.06 0.28 0.07 77.79 320.6A 66.95 68.2A
8 HR. TWA PERSONNEL BENZENE SAMPLES - BARGES
TLV-10
AREA CONTROL ROOM
0.07
AREA TOP DECK NEXT TO BARGE
0.07
AREA BARGE
0.07
AREA FAN BLOWER
0.07
0.05 0.05 0.05 0.17
0.07
0.39 0.05 0.07
0.16
2.99 1.11
9.95 0.05 0.05 1.16
A.62
0.52
3.11
0.11
0.05 0.02 A.72 0.21 0.1A
1 . 2A
1.38
1.56
26.86
1 .50
-A- DO 098362 CONFIDENTIAL
DATE
1-15 1-15 1-15 2-6 2-6 2-6 2-11 2-11 2-11
PERSONNEL
0.75 2.77 1.62 0.05 0.05 0.05 0.06 3.97 0.49
8 HR. TWA PERSONNEL C-5 BENZENE SAMPLES - BARGES
TLV-10
AREA CONTROL ROOM
0.08
0.05
AREA TOP DECK NEXT TO :BARGE
0.35 (,+*
AREA BARGE
179.52
AREA FAN BLOWER
0.36
0.06
0.05
0.06
0.05
0.05
-5-
DO 098363 CONFIDENTIAL
MARINE DOCK 01 VINYL CHLORIDE SHIP DISCONNECT EXCURSIONS - PERSONNEL
TLV-5
SHIP ENRICO FERMI
DATE 3-5
REINA DEL RAMA 3-11
AMELIA
3-15
REINA DEL RAMA 4-8
AMELIA
4-16
SINE MAERSK
5-2
TOP DECK ONLY
WORKED DISCONNECT
NO RESPIRATORY PROTECTION USED BREATHING AIR AREA
0.56 0.13
2.45 0.76
0.01
0.08 0.05
0.25 0.45
0.14
0.01 0.09
17.74 4.79
0.12
0.01
0.24 1.78
0.8 0.05
1.26 0.19
37.34 ' 22.24
4.12
0.01 0.35
5.7 15.4
REMARKS
VENT LINE TC PLANT PRESS! UP DURING PURGING OPEF TIONS
HELIOS HELICE
5-10 5-13
0.16 0.06
4.22 4.93
297.95 323.47
SHIP HEADER VALVE LEAKIF
AMELIA
5-15
1 .2
21.8 30.3 30.0
AMELIA AMELIA
5-31 7-1
2.1 ^ 0.93
0.38
121.8 64.1
28.96 1.62
VENT LINE TC PLANT PRESSURING l
VASCO DA GAMA
7-7
11.5
8.9 46.0
CORAL ISIS
7-18
32.3 9.1
HELICE AMELIA
7-20 7-28
0.14 4.25 -
6- -
2.4 2,6
173.44 86.13
OPERATOR SMELLED VINI FROM SHIP PF TO DISCONNEC
00 098364 CONFIDENTIAL
PAGE 2
SHIP SINE MAERSK NESTE FOX
MARINE DOCK #1 VINYL CHLORIDE SHIP DISCONNECT EXCURSIONS - PERSONNEL
TLV-5
DATE
TOP DECK ONLY
WORKED DISCONNECT
NO RESPIRATORY PROTECTION USED BREATHING AIR
REMARKS
8-5 0.88
26.58 34.78
8-7 2.18
8.54 9.22
PRINS FREDERIK HENDRIK
8-31
AMELIA
9-27
AMELIA
10-13
0.01 0.51 1.36
0.1
0.29 0.01
28.2 81.03
10.7^ 12.9 \
VALVE ON END OF LOAD HOSE LEAKI
BEGAN USING NEW HYDRAULIC CLAMP
SOFIE MAERSK
10-24
DELTA GAS
10-30
AMELIA
12-5
AMELIA
12-18
DELTA GAS
12-23
0.12 0.16 0.27
12.96 '
0.05
0.03
6.23/ 4.35k
0.66 17.7
54.55 30.5
15.74 3.J8
9.4 0.08
SHIP HEADER VALVE LEAKING
PURGING PROBLEM SHIP VALVE LEAK PACKING ON END LOAD HOSE LEAKI:
DO 098360 CONFIDE NT IAL
SHIP AMELIA HELICE
ERIK RAUDE
GAMBADA GAMBADA HELICE HELICE GAMBADA
HELICE HELICE HELICE
MARINE DOCK 02
VINYL CHLORIDE SHIP DISCONNECT EXCURSIONS - PERSONNEL
TLV-5
-
DATE
TOP DECK ONLY
WORKED DISCONNECT
NO RESPIRATORY PROTECTION USED BREATHING AIR
AREA- REMARKS
3-29
0.0 0.15
5.62 1.42
0.62
4-7 2.09 0.29
9.9 16.8
1.03
FAN OUT OF ORDER BLADES JAMH
5-5 12.23 \ 23.35 '
67.09 23.86
VAPORS SEE! END OF LOAI ARM UPON DISCONNECT
5-19
4.13^
241.55 79.89
2.31 SHIP HEADEF VALVE LEAK!
5-23
2 1 0.95
4.7 1.8
7-7 8-17
28.4 \ 32.0 y
1.10 / /
58.0 76.0
31.9 53.3
LEAK AT FLAN END OF LOAD
8-23
.,
0.27 0.37 0.95
10-3
0.44
28.2 463.0
10-28 12-4
1.14 \ 1.23 /
9.3 15.5
89.0
-8''
DO 098366 CONFIDENTIAL,
MARINE
ACCOMPLISHMENTS - 1981 EMPLOYEE EDUCATION PROGRAM - 100Z PARTICIPATION NEW CONTROL - LUNCH - CHANGE ROOM FACILITIES DOCK 92 POSITIVE PRESSURE IN CONTROL ROOM DOCK 92, ELIMINATING VAPOR EXPOSURES IN CONTROL ROOM BREATHING AIR SUPPLY HOOK-UP IN CONTROL ROOM - DOCK 92 ASSUMED RESPONSIBILITY FOR MONITORING VINYL SHIP DISCONNECTS DOCK 91 AND DOCK 92 USING HYDRAULIC CLAMPS WHEN DISCONNECTING VINYL SHIPS, REDUCING PERSONNEL EXPOSURES - DOCK //I PERSONNEL MONITORING OF BENZENE EXPOSURES IN CONJUNCTION WITH MEDICAL PHENOL SURVEYS USING SEMI-PRESSURE BARGES FOR C-5 MATERIAL, THEREBY REDUCING PERSONNEL EXPOSURES BY VENTING TO FLARE
-9DO 098367
CONFIDENTIAL
MARINE
GOALS - 1982
PROTECTING THE PHYSICAL WELFARE OF EMPLOYEES BY REDUCING CHEMICAL EXPOSURES CONTINUING EDUCATION OF EMPLOYEES - CONSEQUENCES OF OVEREXPOSURE TO CHEMICALS, SURVEY RESULTS, ETC. IMPROVEMENTS TO FAN BLOWER VENT SYSTEM - USED TO VENT BENZENE VAPORS AWAY FROM PERSONNEL LOADING BARGES - DOCK 02 COMPLETION OF CONTINUOUS AIR MONITOR - DOCK 02 MORE NOISE SURVEYS - DOCK 01 AND 02 CONTINUING PERSONNEL MONITORING OF BENZENE EXPOSURES IN CONJUNCTION WITH MEDICAL SURVEYS OF PHENOL LEVELS MONITORING - MORE EMPHASIS ON PERSONNEL EXPOSURES TO SUSPECT CARCINOGENS MONITOR FOR FRESH AIR INTAKE TO CONTROL ROOM DOCK 02 RESCUE BOAT AND MOTOR - DOCK 01
-10-
DO 098368 CONFIDENTIAL