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INDUSTRIES PPG INDUSTRIES, INC. CHEMICAL DIVISION - U.S. P.O.BOX 1000 LAKE CHARLES, LA. 70602
August 30, 1982
Mr. Dick Whittington Administra tor U.S. EPA, Region VI 1201 Elm Street Dallas, Texas 75270
Dear Mr. Whittington:
In compliance with the provisions of 61.65(a) of the NESHAP vinyl chloride regulations, enclosed are two reports of safety relief valve discharges which occurred on August 24, 1982.
Sincerely,
PPG INDUSTRIES, INC.
PST/cp
CC : Mr. Gus Von Bodungen Mr. Joe Withers
bcc: R. P. Byars/J. A.JIart B. D. Reynolds F. C. Dehrf/R. J. Samel son W. J. Peard/J. E. Wyche E. J. Tulller File #103.1.02
Philip S. Trew Environmental Control Specialist
SL 088797
RELIEF VALVE DISCHARGE REPORT VCM PLANT
(Send completed Form to Coordinator Environmental Systems within 5 days of discharge.)
1. Date of Discharge: August 24, 1982 2. Time of Discharge: 11:00 A.M. to 11:30 A.M. 3. Source: SRV #46-2459. Location #90-759 -- Certain-Teeri Tank Fill I inn
(Name of Vessel and SRV Number) 4. Nature and Cause of Discharge: This SRV release was due to the Certain-Tepri
Tank Fill Line being blocked-in without the pressure pr|iiati7atinn line hfing_____ in service._______________________________________________________________________________
5. Approximate Quantity of VCM Discharged:
303 lbs._________________
6. Method of Calculation of Line (5): See Attachment__________________________
7. Action Taken to Prevent This Discharge: When the release was HisrnvprpH at 11:30 A.M. the alternate SRV was placed into service._____________________
8. Measures Adopted to Prevent Future Discharges: Five measures have been adopted
to insure against the reoccurrence of this SRV from discharging:
1) On 8/24/82, the VCM-II Storage /Transfer Operator roroivori writ+on------------
Instructions to leave all equalizing lines open.
2) On 8/24/82, a tag was placed on the equ
SL 088798
-rat tha fine* 3
must remain open.
3) On 8/24/82. each operator wac inHivirtually counseled
4) On 8/25/82, the SOP was revised to state that equalization lines must remain open.
5) By 9/3/82, a sign will be posted in the vicinity of the equalization line reminding the operators to leave the equalization lines open.
SRV Release Of 8/24/82 at 11:00 A.M.
Method Of Calculation
1. Estimate of pounds of vinyl released
1. 30 feet of 10" pipe 1/3 full of vinyl 2. 36 feet of 2" pipe full of vinyl 3. Total Volume:
A) "TTlO12 = 4
*TC ( 30) (. 8 33) 2 = 16.36 ft3 *of the 10" pipe 4
1/3 of the 10" pipe filled so V - (0. 252315) ( 16.36) = 4. 13 ft3
B) re LD2 = TC ( 36) (0.172) 2 = 0. 8365 ft3 44
C) Total Volume of VCM released = 4.97 ft3
4. Assume VCM liquid at 4F and atmospheric pressure
5. Density = 8.1584 lb /gal 7
. ..
6. lbs. released = (4.97 ft'J)(7.48052
) (8.1584 ^ ) = 303 lbs.
SL 088799
RELIEF VALVE DISCHARGE REPORT VCM PLANT
(Send completed form to Coordinator Environmental Systems within 5 days of discharge.)
1. Date of Discharge;
August 24. 1982
2. Time of Discharge; 5:15 P.M.
3. Source; 5RV #46-2*164. Location 90-260 -- Certain-Teed Tank Fill Line (Name of Vessel and SRV Number)
4. Nature and Cause of Discharge: This SRV release was due to the rupture
disc having a pin hole leak and the SRV leaking. The transfer line was operating at only 110-120 psi with the RD/SRV rated for 275 psi.
5. Approximate Quantity of VCM Discharged:____ 51 ibs. 6. Method of Calculation of Line (5): See Attachment_______________________
7. Action Taken to Prevent This Discharge: Maintenance personnel immediately changed out the rupture disc between the transfer lineand the SRV. which stopped the release. ___________________________ :_______________
8, Measures Adopted to Prevent Future Discharges: The SRV was removed from service and tested with no noticeable* problems observed. The SRV qualified test mechanic assumes that the SRV seat had been fouled which prevented the SRV from seating properly.
SL 088800
SRV Release of 8/24/82 at 5:15 P.M, Method Of Calculation 1. 36 feet of 2" pipe full of liquid vinyl 2. Total Volume = 0.8360 ft^
V = -fT LD2 = -fC ( 36) (0. 172) 2 = 0.8360 ft3 44
3. Assume VCM at 4F and atmospheric pressure 4. Density = 8.1584 Ib/gal 5. lb. VCM =
= (0. 8364 ft3) (7. 48052 gal/ft3) (8.1584 Ib/gal) = 51 lb.
0888q1 St*
RELIEF VALVE DISCHARGE REPORT
f
VCM II UNIT
(Send completed form to Coordinator Environmental Affairs within 5 days of discharge.)
1. Date of Discharge:______% - % ^ - % 2-
2. Time of Discharge: Hfat) - j/3Q ,g.,r7_____________
3. Source:
(2Wr#'; hf - /pen /wk. file LJa/ (Name of Vessel and SRV Number)
t
(77?-7 V57 2-^0-
,
4. Nature and Cause of Discharge:___________________________ ________________ _________ _ (Describe release and circumstances which caused it.)
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5. Approximate Quantity of VCM Discharged:__
^03 Ife_____________ _
6. Method of Calculation of Line (5):
25 t'mpfe, -from f,,, .72 fil!<= (Attach Calculations)
/Up, ^ en
7. Action Taken to Prevent This Discharge:
/Jo
A >h\/rsJ
(it there was a forewarning, explain whar was
done; if not, say so.)
SL 088802
8. Measures Adopted to Prevent Future Discharges: 77;r
iN .
s ea'aicc
(Describe specific steps taken, such as
' -c-v/'____ eig,_____rn l____ mzL____ L
7: 77) ^
equipment or piping or instrumentation revisions or changes in written SOP.)
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SL 088803
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