Home Search Emissions Pollutants About the Database


Valero (26003), Norco

Releases in 2008

LDEQ Accident Number
Accident Date
Point Source/Release CauseNotes
111449

2008-12-15
Point Source(s):
MSCCU

Pollutant(s):
Arsenic - 80 pounds
Cause of Problem: Other

during catalyst removal from MSCCU, a breach of containment resulted in release of catalyst to ground and nearby areas
Stopped catalyst removal process immediately and clean up the impacted area. Revise catalyst loading and unloading procedure to require gauging of hoppers with a temperature gun or heat scan to allow the level to be tracked with less frequent manual gauging. Set up a log to make sure procedure is followed.
111397

2008-12-12
Point Source(s):
MSCCU Reactor Secondary Cyclone

Pollutant(s):
Sulfur Dioxide - 287 pounds
Hydrogen Sulfide - 6 pounds
Sulfur Dioxide - 287 pounds
Hydrogen Sulfide - 6 pounds
Cause of Problem: Other

pinhole leak on MSCCU Reactor Secondary Cyclone
Letter states that emission were BRQ.
111397

2008-12-12
Point Source(s):
None Reported
Pollutant(s):
Cause of Problem: Other

leak from MSCCU Reactor Secondary Cyclone
Steam applied to leak immediately.
No LDEQ Number Available

2008-12-07
Point Source(s):
Prospect Tank Farm Alkylate Tank 150-26

Pollutant(s):
Alkylate - BRQ
Cause of Problem: Other

Prospect Tank Farm Alkylate Tank 150-26 had a weep hole
Tank taken out of service for inspection and repair
111000

2008-11-22
Point Source(s):
VGO Line

Pollutant(s):
Vacuum Gas Oil - BRQ
Cause of Problem: Piping or Tubing

A VGO line leaked
Oil booms and vacuum trucks and a small plastic pool used to contain and recover material.
110405

2008-10-27
Point Source(s):
12 inch hose

Pollutant(s):
Diesel Fuel - BRQ
Cause of Problem: Other

12
NA
110357

2008-10-27
Point Source(s):
Flares 1 and 2, Thermal Oxidizer

Pollutant(s):
Sulfur Dioxide - 930 pounds
Cause of Problem: Equipment Design

power interruption causes upset at East Plant and multiple emissions. Design used purchase power instead of UPS power
Immediately stabilized process units. Provide uninterruptable power supply instead of purchased power supply to the combustion blowers. PSSR electrical check list will be revised to add a step to physically shut off power to the equipmt to verify that UPS is working properly.
110214

2008-10-17
Point Source(s):
Refinery Outfall 002

Pollutant(s):
Unknown Substance - 1,008 gallons
Cause of Problem: No Information Given

Under investigaton
Vacuum trucks mobilized to recover material
109887

2008-10-07
Point Source(s):
Acid pipleine in the Alkylation Unit

Pollutant(s):
Sulfuric Acid - 2,831 pounds
Cause of Problem: Piping or Tubing

leak from an acid pipleine in the Alkylation Unit
Alkylation unit was shut down to release the pressure in the acid pipeline and stop the leak. The line is now repaired.
109888

2008-10-07
Point Source(s):
TOX 1 and TOX 2

Pollutant(s):
Sulfur Dioxide - 3,714 pounds
Cause of Problem: Equipment Failure

failed FBM card leads to 3700 SRU shut down.
reduced the crude rate, thereby sulfur load to sulfur units and restarted SRU 3700 as soon as possible.
109833

2008-10-04
Point Source(s):
Tank - T-130-9

Pollutant(s):
Vacuum Gas Oil - 2,100,000 gallons
Cause of Problem: Corrosion

tank leaking VGO through floor
Emergency team mobilized to pump VGO to another tank. Emergency respose company contracted to recover non-pumpable VGO and perform soil remediation. Valero will begin to use acoustical testing on all of its tanks.
109755

2008-10-01
Point Source(s):
Flares 1 and 2

Pollutant(s):
Sulfur Dioxide - BRQ
Hydrogen Sulfide - BRQ
Volatile Organic Compounds - BRQ
Cause of Problem: Equipment Failure

Hot Separator develops crack allowing material and gases to release.
Emissions minimized with a controlled shutdown of the unit. Firewater sprayed on to control vapors and mitigate inflammation. Oil absorbent booms deployed. Water collected by vacuum truck from drainage routes.
109671

2008-09-29
Point Source(s):
Wastewater Treatment Unit

Pollutant(s):
Crude Oil - 420 gallons
Cause of Problem: Process Upset

WWTU experienced an upset and oil was carried through the unit into the treatment pond system
Absorbent boom used to contain oil.
109312

2008-09-18
Point Source(s):
Flares 1 and 2

Pollutant(s):
Sulfur Dioxide - 3,060 pounds
Cause of Problem: Equipment Failure

coker wet gas compressor tripped on low lube oil pressure when the main lube oil pump turbine tripped.
Incident still under investigation; Follow-up letter cites acquisition of facility from Orion again.
109312

2008-09-18
Point Source(s):
Coker Wet Gas Compressor

Pollutant(s):
Sulfur Dioxide - 3,060 pounds
Cause of Problem: Equipment Failure

Coker Wet Gas compressor tripped on low lube oil pressure when the main lube oil pump turbine tripped. This cause Coker off gas to relieve to the flare. Sulfur dioxide was released from the refinery flares and rapidly dispersed. The cause of this incident is under investigation.
Emissions were minimized by immediately restarting the Wet Gas Compressor.
108720

2008-09-05
Point Source(s):
Flares

Pollutant(s):
Sulfur Dioxide - BRQ
Cause of Problem: Weather

; controlled refinery start up due to Gustav
Sent to alert outside agencies of possibility of flaring due to start up
108613

2008-08-30
Point Source(s):
Flares

Pollutant(s):
Sulfur Dioxide - BRQ
Cause of Problem: Weather

shutting down some units in anticipation of Gustav
Report sent in advance of shut down of some units in preparation for Gustav. Some flaring expected.
107876

2008-08-08
Point Source(s):
Chemical tote

Pollutant(s):
Sulfuric Acid - 125 gallons
Cause of Problem: Other

a chemical tote being carried on a forklift fell on the ground and began leaking after forklift hit a pothole.
Material was neutralized using soda ash.
107841

2008-08-07
Point Source(s):
Flares 1 and 2

Pollutant(s):
Sulfur Dioxide - 3,660 pounds
Cause of Problem: Maintenance/Procedures

while conducting maintenance on the steam system on the compressor, the WGC tripped on low lube oil pressure
Emissions minimized by immediately restarting WGC
107543

2008-07-26
Point Source(s):
Flares

Pollutant(s):
Sulfur Dioxide - 192 pounds
Cause of Problem: Equipment Failure

FCCU lost its air blower and the debutanizers pressurized and relieve to the flares
Letter states that emission were BRQ.
106899

2008-07-07
Point Source(s):
CCR Unit

Pollutant(s):
Hydrogen Chloride - BRQ
Cause of Problem: Start Up, Shut Down

departure from start up, shut down, & malfunction plan for CCR Unit
Letter states that emission were BRQ.
106972

2008-07-07
Point Source(s):
Thermal Oxidizer #1 (EQT 195 (99-3))

Pollutant(s):
Sulfur Dioxide - BRQ
Cause of Problem: Process Upset

an obstruction blocked the #4 run down sulfur trap from closing, allowing vapors to back flow through TOX
Letter states that emission were BRQ.
106285

2008-06-09
Point Source(s):
Flares 1 and 2

Pollutant(s):
Volatile Organic Compounds - BRQ
Sulfur Dioxide - 425 pounds
Cause of Problem: Maintenance/Procedures

MCCU was shut down so that a pinhole leak on the Millisecond Cat Cracker unit could be repaired
A plug was installed to minimize the leak.
105908

2008-05-27
Point Source(s):
71A Refrigerant Condenser

Pollutant(s):
Volatile Organic Compounds - 3,312 pounds
Cause of Problem: Other

VOC leak from process unit in cooling tower
Condenser was isolated and is in the process to be repaired [sic]. Follow-up letter states that emissions were BRQ.
105151

2008-04-27
Point Source(s):
CT-04-600 Cooling Tower

Pollutant(s):
Hydrogen Sulfide - BRQ
Cause of Problem: Piping or Tubing

leak on a heat exchanger on the recycle gas cooler in the HTHC
Valero routed gases to the Flare Recovery Syste,
104831

2008-04-17
Point Source(s):
Flares 1 and 2 (EQT 013 and 007)

Pollutant(s):
Sulfur Dioxide - 215 pounds
Hydrogen Sulfide - BRQ
Cause of Problem: Start Up, Shut Down

difficulty during startup of catalytic cracker and gas Desulfurization Unit
Startup rates of units kept low to reduce emissions
104105

2008-03-22
Point Source(s):
Tank T-150-18

Pollutant(s):
Crude Oil - 714 gallons
Cause of Problem: Other

leak in tank farm of unknown origin
vacuum trucks deployed to remove material. Remaining crude oil in tank transferred to another tank. Water used to separate oil from leak point.
103790

2008-03-10
Point Source(s):
Flares 1 and 2, Thermal Oxidizer #1, Cooling Tower (CT-04-02)

Pollutant(s):
Sulfur Dioxide - BRQ
Propane - BRQ
Cause of Problem: Start Up, Shut Down

start up of Alky and MSCU Units following a major refinery turnaround reveals propane leak.
Valero secured a Temporary Variance prior to this turnaround. Incident still under investigation at time of report. Follow up letter states that VOC emissions were 1238 lbs/hr, but it does not state how long this emission rate lasted.
103676

2008-03-06
Point Source(s):
Wastewater Treatment Unit

Pollutant(s):
Crude Oil - 42 gallons
Cause of Problem: Other

a wastewater secondary clarifier bottoms tank overflowed.
vacuum trucks deployed to remove material. Personnel aided in clean up, removed surface sediments for disposal.
103521

2008-02-29
Point Source(s):
Flare

Pollutant(s):
Sulfur Dioxide - 7,800 pounds
Carbon Monoxide - 213 pounds
Volatile Organic Compounds - 81 pounds
Nitrogen Dioxide - 39 pounds
Hydrogen Sulfide - 21 pounds
Cause of Problem: Maintenance/Procedures

while initiating corrective actions for another incident the WGC tripped.
Emissions minimized by immediately restarting WGC.
103514

2008-02-28
Point Source(s):
Fill line from #1 manifold to T-130-7

Pollutant(s):
Vacuum Gas Oil - 42 gallons
Cause of Problem: Piping or Tubing

Fill line from #1 manifold to T-130-7 appeared to be leaking VGO
Absorbent boom and vacuum trucks used to contain and recover material. VGO line was excavated and removed.
103290

2008-02-21
Point Source(s):
Sour Water Stripper Acid Gas Valve

Pollutant(s):
Hydrogen Sulfide - BRQ
Sulfur Dioxide - BRQ
Cause of Problem: Other

pinhole leak on MSCCU Reactor Secondary Cyclone
Letter states that emission were BRQ.
102905

2008-02-08
Point Source(s):
East Plant

Pollutant(s):
Sulfur Dioxide - BRQ
Volatile Organic Compounds - BRQ
Nitrogen Dioxide - BRQ
Cause of Problem: Maintenance/Procedures

East Plant coming down for a scheduled maintenance turnaround
Courtesy notification of scheduled turnaround
102759

2008-02-01
Point Source(s):
Flares 1 and 2

Pollutant(s):
Sulfur Dioxide - 7,240 pounds
Cause of Problem: Equipment Failure

failure of WGC due to low lube oil pressure
Emissions minimized by immediately restarting WGC.
102359

2008-01-16
Point Source(s):
#1 Flare

Pollutant(s):
Sulfur Dioxide - BRQ
Cause of Problem: Equipment Failure

Vacuum tower lost its vacuum
Letter states that emission were BRQ.
102262

2008-01-13
Point Source(s):
Flare

Pollutant(s):
Sulfur Dioxide - 4 pounds
Hydrogen Sulfide - 2 pounds
Cause of Problem: Equipment Failure

the blow down system off the Wet Gas Compressor was routed to flare to relieve coke drum pressure after one of the coke drums cracks.
Letter states that emission were BRQ.
102201

2008-01-10
Point Source(s):
Flare Gas Recovery Compressor

Pollutant(s):
Sulfur Dioxide - 20 pounds
Volatile Organic Compounds - 1 pounds
Hydrogen Sulfide - 1 pounds
Cause of Problem: Equipment Failure

Flare Gas Recovery Compressor tripped
Letter states that emission were BRQ.
102198

2008-01-09
Point Source(s):
Tank T-150-2

Pollutant(s):
Diesel Fuel - BRQ
Cause of Problem: Maintenance/Procedures

personnel digging holes around tank T-150-2 to place covers over the grounding leads around tank notice diesel leaking from these holes.
Refinery personnel used absorbent boom and vacuum trucks to contain and recover the material.
102102

2008-01-06
Point Source(s):
Coker Wet Gas Compressor
Flares 1 and 2

Pollutant(s):
Sulfur Dioxide - BRQ
Sulfur Dioxide - 6,930 pounds
Volatile Organic Compounds - 72 pounds
Particulate Matter - 1 pounds
Hydrogen Sulfide - 19 pounds
Nitrogen Oxide - 35 pounds
Carbon Monoxide - 189 pounds
Cause of Problem: Equipment Failure

failure of WGC
DEQ report states that there have been many WGC failures, enough that they have made repeated calls to the facility urging them to repair the unit to prevent recurrence of such events. According to report, Valero has repaired the WGC.
102089

2008-01-05
Point Source(s):
Thermal Oxidizer #1 (EQT 195 (99-3))

Pollutant(s):
Hydrogen Sulfide - 460 pounds
Cause of Problem: Equipment Failure

TOX 1 for SRU tripped
Repeated attempts to rebuild the igniter and restart the THOX
102086

2008-01-03
Point Source(s):
Flares 1 and 2

Pollutant(s):
Sulfur Dioxide - BRQ
Carbon Monoxide - 162 pounds
Particulate Matter - 1 pounds
Volatile Organic Compounds - 61 pounds
Hydrogen Sulfide - 16 pounds
Nitrogen Oxide - 30 pounds
Cause of Problem: Instrument Failure

Guardian over speed device malfunction causes WGC to trip
Emissions minimized by immediately restarting WGC. A series of follow-up reports reveal that Valero did not know age or maintenance history of WGC upon purchase of facility from Orion. Valero has now replaced major components of WGC and plans to replacethe guardian over speed device next.