Document dYbq1Mpo00GRYME0qXO0MpD3q
North American Refining
February 27, 1981
Conoco Inc. P. O. Bo* 37
Wesllake, LA 70669
(318)491-5211
Virgil Doty C-TEK 9742 Skillman Dallas, TX 75243
Dear Virgil:
Please note enclosed samples for coal tar pitch volatiles analysis. The samples were collected on GF + .8um Ag membrane filters. Analyze each sample for CTPV content and express results as an eight hour TWA in mg/m^. Should any sample exceed O.lmg/m^ CTPV's, evaluate the sample for specific PNA's. Express these results in an eight . hour TWA in mg/nw.
Included with the above samples is one sample for cresol. It was collected on silica gel. Please analyze for cresol and express the results as an eight hour TWA in ppm.
Bill charges per previous billing instructions.
Sincerely
Industrial Hygienist Lake Charles Refinery
MJ:ar Enclosures
MPLE DATA ON CTPV SAMPLES
Field Sample No.
24-3-81-1 24-3-81-2 24-3-81-3 24-3-81-4 24-3-31-5 24-3-81-6 24-3-81-7
Time Period
477 Min. 480 Min. 480 Min. 470 Min. 472 Min. 475 Min. Blank
Sample Vol.
.7203m3 .7248m3 .720m3 .7097m3 7127m3 .7125m3
Temo.
76F 76F 76F 67F 67F 67F 67F
Humidity
28% 28% 28% 74% 74% 74% 74%
Bar Press.
30.07 30.07 30.07 30.25 30.25 30.25 30,25
12-6-79-52 12-6-79-53 . 12-6-79-54 { 12-6-75-55
j 12-6-79-56 / 12-6-79-58
I 12-6-79-59 \ 12-6-79-60
469 Min. 469 Min. 474 Min. 468 Min. 474 Min. 480 Min. 471 Min. Blank
.7082m3 .7082m3 7157m3 7067m3 7157m3 .7248m3 7065m3
57F 57F 57F 57F 57F 57F 57F 57F
75% 75% 75% 75% 75% 75% 75% 75%
29.98 29.98 29.98 29.98 29.98 29.98 29.98 29.98
SAMPLE DATA FOR CRESOL
12-6-79-57 12-6-79-61
465 Min. Blank
941
57F 57F
75% 75%
NOTE: Other phenolics may be present.
29.92 29.92
MCD 000023715
CONOCO Lake Charles Refinery
***eld and Lab Data Report
--73ggv?ranr*/or"
Sample No.
Sampling Date
/ 7-^-2?-^
7-*t
Shift
Supervisor
St GcssZ--
Pump Serial No.
Collecting Media
Pump Flow Rate
/* 77
rff.
rff.__________
Time sampiing Began Time Sampling Ended
7:3(~
_________J
__________
/, rj/w srr/tsr-
/- /A S T^O/O
Suspected Hazard
dy-piz/fWA
Description of Work Performed During Sampling Time
7) & V/V-,
cA ({
Equipment Name/Model
Sampling Train Description Pump Calibration Date
mfi AM/ 6 Asuf
Type of Monitoring
We a ther Con'd itions
Check One
Z7General
/~7Task
/^Turnaround /^Area
Temp ~7(s
Wind Speed /Q mph JClear /^Partly
Humidity
7S"%
Wind
Direction Ju)
Cloudy 7Cloudy /^7Rain
Report Filed by
t-, / / /7 / _
//I.CjrCZ^T 7'
Date -2-^ 7~<f/
Laboratory Report Date ot Analysis Sample Duration (Hrs)
7/a. 5~T/)/-*j
Analysis of Sample
. ?/Z A -r /,* J
Total Amount Air Sampled
,
y/f r/.r = y/3. rj/* /-7/8rv*i 3J
/liV r cA ^
fjjp'^
t c $-* *'
(/^
Au.-*
/)a, /////<:V' crAJfr C
t/o&dfru 7/jC*e * 03 Vs "
<002
Recovery Efficiency Percent
MCD 000023716 Date Recovery Efficiency Conducted
Equipment Name/Model
Report Filed By
bate