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                       Emission Event Reporting Database
                                                          Regulated entity name
DUPONT SABINE RIVER WORKS
                                                              Physical location
DUPONT SABINE RIVER WORKS ON FM 1006
                                                     Regulated entity RN number
RN100542711
                                                                   City, County
ORANGE, ORANGE
                                                Type(s) of air emissions event:
EMISSIONS EVENT
                                                                   Event began:
09/01/2014 9:20AM
                                                          This is based on the:
FINAL REPORT
                                                                   Event ended:
09/01/2014 9:24AM
                                                                          Cause
While pressuring up #7 hyper discharge Rupture Disk was blown.
                                                                   Action taken
#7 Hyper compressor was immediately shut down, valved out, and set up for the rupture disk replacement.
                                                    Emissions estimation method
From IP21 Data and Technical Calculations
Source 1: #7 Hyper Compressor Discharge Rupture Disk , EPN number PLUM-C
                                  Contaminant
                                 Authorization
                                     Limit
                                Amount Released
Ethylene (gaseous) 
No specific authorization for the facility. Permit 9176.
0.0 
6239.0 lbs (est.)
Methanol 
No specific authorization for the facility. Permit 9176.
0.0 
101.0 lbs (est.)
Source 2: #7 Hyper Compressor Discharge Rupture Disk , FIN number PLUMC
Source 3: CDG , FIN number 
No other sources
                       Emission Event Reporting Database
                                                          Regulated entity name
DOW TEXAS OPERATIONS FREEPORT
                                                              Physical location
                                                                               
                                                     Regulated entity RN number
RN100225945
                                                                   City, County
FREEPORT, BRAZORIA
                                                Type(s) of air emissions event:
EMISSIONS EVENT
                                                                   Event began:
01/08/2015 8:58AM
                                                          This is based on the:
FINAL REPORT
                                                                   Event ended:
01/08/2015 9:01AM
                                                                          Cause
An increase in pressure caused Pressure Safety Valve-151 to lift.
                                                                   Action taken
System pressure was reduced.
                                                    Emissions estimation method
Engineering calculations.
Source 1: Low pressure Ethylene feed line , FIN number OC5U5FU3
Source 2: OC5 Unit 5 , FIN number 
Source 3: PSV-151 , EPN number N/A
                                  Contaminant
                                 Authorization
                                     Limit
                                Amount Released
Ethylene, gaseous 
NSR 19041 No specific emission limit
0.0 
90.0 lbs (est.)
No other sources
                                       
                                       
                                       
                                       
                                       
                                       
                       Emission Event Reporting Database
                                                          Regulated entity name
EASTMAN CHEMICAL TEXAS OPERATIONS
                                                              Physical location
GREGG AND HARRISON COUNTIES
                                                     Regulated entity RN number
RN100219815
                                                                   City, County
LONGVIEW, HARRISON
                                                Type(s) of air emissions event:
EMISSIONS EVENT
                                                                   Event began:
10/17/2014 10:06PM
                                                          This is based on the:
FINAL REPORT
                                                                   Event ended:
10/17/2014 11:44PM
                                                                          Cause
The pressure setting on the tank systems transfer lines was exceeded and the pressure setting on the conservation vent on hazardous waste tank 36TK-59 was exceeded and emissions were vented from the tank to the atmosphere.
                                                                   Action taken
Pumping of liquid into the hazardous waste transfer line from another plant area was stopped. The pressure on the hazardous waste line was reduced and the venting of air emissions from the conservation vent on tank 36TK-59 was stopped.
                                                    Emissions estimation method
Engineering calculations. Please note that upon further review, this release event was determined to be not reportable. Eastman's initial STEERS report dated 10/18/2014 was made in an excess of caution. Neither of the initially reported butyraldehyde chemicals exceeded the 100-pound reportable quantity. Therefore, this was not reportable under 30 TAC 101.201.
Source 1: Hazardous Waste Tank , FIN number OX048T59
Source 2: Tank Vent , EPN number 048T59
                                  Contaminant
                                 Authorization
                                     Limit
                                Amount Released
Butyraldehyde 
NSR Permit No. 21832 for total VOC. No emissions authorized during upset conditions.
32.1 LBS/HR
61.14 lbs (est.)
Isobutyraldehyde 
NSR Permit No. 21832 for total VOC. No emissions authorized during upset conditions.
32.1 LBS/HR
24.5 lbs (est.)
Source 3: Texanol - Nitriles/MIPK Area , FIN number 
No other sources

                       Emission Event Reporting Database
                                                          Regulated entity name
LYONDELL CHEMICAL BAYPORT CHOATE PLANT
                                                              Physical location
KM 579Q
                                                     Regulated entity RN number
RN102523107
                                                                   City, County
PASADENA, HARRIS
                                                Type(s) of air emissions event:
EMISSIONS EVENT
                                                                   Event began:
10/19/2014 3:43PM
                                                          This is based on the:
FINAL REPORT
                                                                   Event ended:
10/19/2014 9:29PM
                                                                          Cause
A transmission line fault on the Centerpoint electric grid outside of the facility caused a power failure. This resulted in multiple shutdowns of plant process equipment and activated a number of plant safety systems. Four RVs lifted to atmosphere, and other systems vented to the Plant 2 and Plant 3 emergency flares.
                                                                   Action taken
Plant procedures were followed to reset interlocks and reduce flows to the flare system. Once power was restored, processes were restarted and stabilized to normal operation.
                                                    Emissions estimation method
Process data and engineering calculations were utilized to quantify the emissions.
Source 1: PO/TBA & Derivative Fugitives , EPN number E-BLOFUG
                                  Contaminant
                                 Authorization
                                     Limit
                                Amount Released
Acetone 
NSR Permit 9395
0.0 
2.13 lbs (est.)
t-Butyl Alcohol 
NSR Permit 9395
0.0 
30.5 lbs (est.)
Source 2: PO/TBA &Derivative Fugitives , FIN number BLOFUG
Source 3: PO/TBA &Derivative Fugitives , FIN number 
Source 4: Plant 2 Emergency Flare , EPN number E-B1501B
                                  Contaminant
                                 Authorization
                                     Limit
                                Amount Released
Acetone 
NSR Permit 9395
0.0 
129.07 lbs (est.)
Carbon Monoxide 
NSR Permit 9395
0.0 
637.63 lbs (est.)
Ethane 
NSR Permit 9395
0.0 
8.66 lbs (est.)
Isobutane 
NSR Permit 9395
0.0 
1465.2 lbs (est.)
Isobutylene 
NSR Permit 9395
0.0 
3.33 lbs (est.)
Isobutylene Oxide 
NSR Permit 9395
0.0 
5.85 lbs (est.)
Methanol 
NSR Permit 9395
0.0 
4.96 lbs (est.)
Nitrogen oxide 
NSR Permit 9395
0.0 
276.9 lbs (est.)
Propane 
NSR Permit 9395
0.0 
24.99 lbs (est.)
Propylene (Propene) 
NSR Permit 9395
0.0 
24.4 lbs (est.)
Propylene oxide 
NSR Permit 9395
0.0 
260.29 lbs (est.)
n-butane 
NSR Permit 9395
0.0 
75.45 lbs (est.)
t-Butyl Alcohol 
NSR Permit 9395
0.0 
204.77 lbs (est.)
Source 5: Plant 2 Emergency Flare , FIN number B1501B
Source 6: Plant 2 Emergency Flare , FIN number 
Source 7: Plant 3 Emergency Flare , EPN number E-B1501C
                                  Contaminant
                                 Authorization
                                     Limit
                                Amount Released
Acetone 
NSR Permit 9395
0.0 
6.83 lbs (est.)
Carbon Monoxide 
NSR Permit 9395
0.0 
74.68 lbs (est.)
Ethane 
NSR Permit 9395
0.0 
2.21 lbs (est.)
Isobutane 
NSR Permit 9395
0.0 
105.76 lbs (est.)
Nitrogen oxide 
NSR Permit 9395
0.0 
28.72 lbs (est.)
Propane 
NSR Permit 9395
0.0 
7.71 lbs (est.)
Propylene (Propene) 
NSR Permit 9395
0.0 
50.69 lbs (est.)
Propylene oxide 
NSR Permit 9395
0.0 
5.72 lbs (est.)
n-butane 
NSR Permit 9395
0.0 
4.84 lbs (est.)
t-Butyl Alcohol 
NSR Permit 9395
0.0 
19.19 lbs (est.)
Source 8: Plant 3 Emergency Flare , FIN number B1501C
Source 9: Plant 3 Emergency Flare , FIN number 
No other sources




                       Emission Event Reporting Database
                                                          Regulated entity name
LYONDELL CHEMICAL BAYPORT CHOATE PLANT
                                                              Physical location
KM 579Q
                                                     Regulated entity RN number
RN102523107
                                                                   City, County
PASADENA, HARRIS
                                                Type(s) of air emissions event:
EMISSIONS EVENT
                                                                   Event began:
01/21/2015 9:12AM
                                                          This is based on the:
FINAL REPORT
                                                                   Event ended:
01/21/2015 10:01AM
                                                                          Cause
TBA from the process was lined up to tank F-1250B. The material in the tank flashed, increasing the pressure in the tank. The RVs on tanks F-1250B and F-1250A lifted. The RV on F-1250B did not reseat on its own due to the guides becoming misaligned when it lifted.
                                                                   Action taken
The RV on F-1250A reseated when pressure was reduced. Operations personnel manually realigned the RV on F-1250B, and it reseated.
                                                    Emissions estimation method
Process data and engineering calculations were utilized to quantify the emissions.
Source 1: PO/TBA & Derivatives Fugitives , EPN number E-BLOFUG
                                  Contaminant
                                 Authorization
                                     Limit
                                Amount Released
Acetone 
NSR 9395
0.0 
16.0 lbs (est.)
Isobutylene Oxide 
NSR 9395
0.0 
2.0 lbs (est.)
Methyl ethyl ketone (MEK) 
NSR 9395
0.0 
1.0 lbs (est.)
t-Butyl Alcohol 
NSR 9395
0.0 
298.0 lbs (est.)
Source 2: PO/TBA & Derivatives Fugitives , FIN number BLOFUG
Source 3: PO/TBA & Derivatives Fugitives , FIN number 
No other sources
                       Emission Event Reporting Database
                                                          Regulated entity name
LYONDELL CHEMICAL BAYPORT CHOATE PLANT
                                                              Physical location
KM 579Q
                                                     Regulated entity RN number
RN102523107
                                                                   City, County
PASADENA, HARRIS
                                                Type(s) of air emissions event:
EMISSIONS EVENT
                                                                   Event began:
07/30/2014 8:50AM
                                                          This is based on the:
FINAL REPORT
                                                                   Event ended:
07/30/2014 10:10AM
                                                                          Cause
Tank F-1208 hatch lift due to nitrogen blow through during offloading of a tank truck.
                                                                   Action taken
Hatch was reseated and release stopped.
                                                    Emissions estimation method
Laboratory analysis was used to determine material composition. The initial part of the release assumed the entire tank headspace volume of saturated vapor was released. A shallow pool calculation was used to estimate release quantities for the remaining time.
Source 1: PO/TBA and Derivatives Fugitives , EPN number BLOFUG
                                  Contaminant
                                 Authorization
                                     Limit
                                Amount Released
Acetone 
NSR 9395
0.0 
14.66 lbs (est.)
Isobutylene 
NSR 9395
0.0 
12.0 lbs (est.)
Methanol 
NSR 9395
0.0 
1.53 lbs (est.)
Methyl ethyl ketone (MEK) 
NSR 9395
0.0 
1.21 lbs (est.)
t-Butyl Alcohol 
NSR 9395
0.0 
372.15 lbs (est.)
Source 2: PO/TBA and Derivatives Fugitives , FIN number E-BLOFUG
Source 3: PO/TBA and Derivatives Fugitives , FIN number 
No other sources


                       Emission Event Reporting Database
                                                          Regulated entity name
UNION CARBIDE TEXAS CITY
                                                              Physical location
KEY MAP 737M
                                                     Regulated entity RN number
RN100219351
                                                                   City, County
TEXAS CITY, GALVESTON
                                                Type(s) of air emissions event:
EMISSIONS EVENT
                                                                   Event began:
08/19/2011 9:00AM
                                                          This is based on the:
FINAL REPORT
                                                                   Event ended:
09/04/2011 7:00AM
                                                                          Cause
A pressure regulator malfunctioned and allowed ethylene to leak by undetected, resulting in unauthorized emissions and an RQ exceedance.
                                                                   Action taken
The regulator was repaired promptly upon discovery.
                                                    Emissions estimation method
Process Knowledge and Emission Monitoring data were used to determine the quantities.
Source 1: Ethylene Vaporizer , FIN number 
Source 2: Ethylene Vaporizer , FIN number 
Source 3: TCO Site Flare , EPN number E09A032
                                  Contaminant
                                 Authorization
                                     Limit
                                Amount Released
Carbon Monoxide 
436
2.26 LBS/HR
12.93 lbs (est.)
Ethylene, gaseous 
436
0.01 LBS/HR
1821.33 lbs (est.)
Nitrogen oxide 
436
0.29 LBS/HR
2.51 lbs (est.)
No other sources





                       Emission Event Reporting Database
                                                          Regulated entity name
UNION CARBIDE TEXAS CITY
                                                              Physical location
KEY MAP 737M
                                                     Regulated entity RN number
RN100219351
                                                                   City, County
TEXAS CITY, GALVESTON
                                                Type(s) of air emissions event:
EMISSIONS EVENT
                                                                   Event began:
11/06/2010 2:30PM
                                                          This is based on the:
FINAL REPORT
                                                                   Event ended:
11/07/2010 7:45AM
                                                                          Cause
PSV 18829 began leaking and did not reseat itself. Preceeding the event, the pressure below the valve did not exceed the 160 PSIG setpoint nor did it reach the 5% blow-down pressure of 152 PSIG. The leak was not immediately discovered due to the low rate at which it was venting, relative to the total amount of gas being processed in the system. This allowed the system to stabilize at the given leak rate and not be immediately discernable to operations. Upon removal for inspection, there were no failures discovered in the PSV that would cause it to leak and then successfully reseat.
                                                                   Action taken
Once detected, operations was successfully able to reseat the PSV. As a short-term action to reduce the likelihood of recurrence, the system operating pressure was reduced 5 PSIG. This provides additional buffer between the operating and PSV set pressures. Since the inspection of the PSV did not substantiate a failure mechanism, other PSV's on the system will be removed and inspected during an upcoming outage in January 2011 to look for evidence that may help to explain the cause of this event and to minimize the chances of a similar incident occurring in the future. As a long-term corrective action, a project is being initiated to identify PSV's that present elevated risk with respect to 1) the ability to quickly identify a leak and 2) potential release quantity. PSV's deemed to meet this criteria will be addressed on a case-by-case basis, with the intent to reduce the likelihood and and duration of future failures.
                                                    Emissions estimation method
VOC emissions associated with this event were estimated using process data and a material balance. 1.How many reportable and recordable emissions events (including this incident) have occurred at the facility/facilities contributing emissions during this incident for the 12 month period prior to this incident? ¿This is the only incident to occur during the preceding 12-month period. 2.What were the facility/facilities total actual operating hours during the past 12 months? ¿The actual operating hours of the LPO-12 #1 VPH Unit from 11/7/2009 ¿ 11/6/2010 were 8304. 3.Identify the cause or causes of the emissions event and include all contributing factors that led to the emissions event. Discuss how the emissions event could not have been avoided by good design, maintenance, and operation practices, if applicable. Discuss any sudden breakdown of equipment or process that was beyond the owner/operator¿s control, if applicable. ¿This event was caused by the premature (before the pressure reached the PSV pressure set point) lifting of PSV 18829. The PSV was found leaking and was immediately reseated by operations. Review of process data indicates that the set pressure of the PSV was never exceeded. Further review failed to find any initiating event or external force acting on the PSV to precipitate its premature lifting. When PSV 18829 was later removed from service and examined, the valve started unseating 30 psi before the set point. The facility involved in this emissions event was designed, maintained, and operated in accordance with industry specifications and procedures. The emissions event could not have been avoided in this case. 4.How were the air pollution control equipment or processes (if any) maintained and operated in a manner consistent with good practice for minimizing emissions and reducing the number of emissions events? ¿This event had no impact on the operation of air pollution control equipment and processes located at the Texas City Site; all control devices are maintained and operated as required. 5.How soon was action taken to achieve compliance once the operator knew or should have known that applicable emission limitations were being exceeded? ¿Upon discovery of the leaking safety valve, operations immediately reseated it to stop the leak. 6.How were the amount and duration of the unauthorized emissions and any bypass of pollution control equipment minimized? ¿Upon discovery of the leaking safety valve, operations immediately reseated it to stop the leak. There was no bypass of pollution control equipment. 7.What was the operational status of all emission monitoring systems at the facility/facilities during this emissions event? If any emission monitoring systems were not kept in operation during the emissions event, explain why they weren¿t kept in operation. ¿There are no emission monitoring systems associated with the facility involved in the event. 8.How were the owner or operator¿s actions in response to the unauthorized emissions contemporaneously documented? ¿Plant operating notes document actions performed by operations in response to the event. 9.Have other similar incidents occurred at this/these facility/facilities in the past that might be indicative of inadequate design, operation, or maintenance? ¿No similar incidents have occurred in the last 12 months. 10.Identify any information you have (e.g., complaints from neighbors, fence line monitoring
Source 1: LPO-12 #1 VPH , FIN number 
Source 2: PSV 18829 , EPN number N/A
                                  Contaminant
                                 Authorization
                                     Limit
                                Amount Released
Butyraldehyde 
NSR 9085
0.0 
5856.0 lbs (est.)
Isobutyraldehyde 
NSR 9085
0.0 
532.0 lbs (est.)
Source 3: PSV 18829 , FIN number 
No other sources
